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array-memoize library: Memoization combinators using arrays for finite sub-domains of functions
PortFusion program: high-performance distributed reverse / forward proxy & tunneling for TCP
reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
wxSimpleCanvas library: Simple zoomable canvas for wxHaskell

-

tslib library and tests: -

.NET

clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
hs-dotnet library: Pragmatic .NET interop for Haskell
language-cil library: Manipulating Common Intermediate Language AST
Salsa library: A .NET Bridge for Haskell

Accelerate

accelerate library and tests: An embedded language for accelerated array processing
accelerate-bignum library, tests and benchmark: Fixed-length large integer arithmetic for Accelerate
accelerate-blas library, tests and benchmarks: Numeric Linear Algebra in Accelerate
accelerate-examples library and programs: Examples using the Accelerate library
accelerate-fft library and tests: FFT using the Accelerate library
accelerate-io library: Convert between Accelerate arrays and raw pointers
accelerate-io-array library and test: Convert between Accelerate and array
accelerate-io-bmp library: Convert between Accelerate arrays and BMP images
accelerate-io-bytestring library: Convert between Accelerate and ByteString
accelerate-io-cereal library: Binary serialisation of Accelerate arrays using cereal
accelerate-io-JuicyPixels library: Convert between Accelerate arrays and JuicyPixels images
accelerate-io-repa library: Convert between Accelerate and Repa arrays
accelerate-io-serialise library: Binary serialisation of Accelerate arrays using serialise
accelerate-io-vector library and test: Convert between Accelerate and vector
accelerate-kullback-liebler library, test and benchmark: Kullback-Liebler divergence
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
colour-accelerate library: Working with colours in Accelerate
containers-accelerate library and test: Hashing-based container types
FAI library and test: Haskell Foreign Accelerate Interface
gloss-accelerate library: Extras to interface Gloss and Accelerate
gloss-raster-accelerate library: Parallel rendering of raster images using Accelerate
hashable-accelerate library: A class for types which can be converted into a hash value
lens-accelerate library: Instances to mix lens with Accelerate
linear-accelerate library and test: Lifting linear vector spaces into Accelerate
mwc-random-accelerate library and benchmark: Generate Accelerate arrays filled with high quality pseudorandom numbers

Accessibility

bitspeak program: Proof-of-concept tool for writing using binary choices.
hsay program: (ab)Use Google Translate as a speech synthesiser
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

ACME

ACME library: Essential features
acme-all-monad library: A monad which is powerful enough to interpret any action
acme-box library, program and test: A full featured empty project
acme-cadre library: car, cdr and more
acme-circular-containers library and test: Spineless containers which are fast to read but inefficient to update
acme-cofunctor library: A Cofunctor is a structure from category theory dual to Functor
acme-colosson library: Determines whether it is numberwang.
acme-cuteboy library and program: Maybe gives you a cute boy
acme-cutegirl library and program: Maybe gives you a cute girl
acme-default library: A class for types with a distinguished aesthetically pleasing value
acme-dont library and test: A "don't" construct
acme-everything library: Install everything.
acme-flipping-tables library: Stop execution with rage.
acme-functors library: The best applicative functors.
acme-grawlix library: More readable names for commonly used symbols
acme-hq9plus library: An embedded DSL for the HQ9+ programming language
acme-inator library and program: Evil inventions in the Tri-State area
acme-io library: The only true way to do IO in Haskell!
acme-lolcat library: LOLSPEAK translator
acme-lookofdisapproval library: Express your disapproval
acme-memorandom library: Memoized random number generation
acme-microwave library: The eighth wonder of the world, kitchen math!
acme-miscorder library: Miscellaneous newtypes for orderings of discutable use.
acme-missiles library: Cause serious international side effects.
acme-mutable-package library: A mutable package.
acme-now library: An interface to the philosophical and metaphysical "now"
acme-numbersystem library: Define the less than and add and subtract for nats
acme-omitted library and test: A name for omitted definitions
acme-one library: The identity element of package dependencies
acme-php library: The flexibility of Haskell and the safety of PHP
acme-pointful-numbers library: Make more than one point in numeric literals
acme-realworld library: Primitives for manipulating the state of the universe
acme-safe library: Safe versions of some infamous haskell functions such as fromJust
acme-schoenfinkel library and test: Proper names for curry and uncurry
acme-smuggler library and test: Smuggle arbitrary values in arbitrary types
acme-strfry library: A binding to the glibc strfry function.
acme-stringly-typed library: Stringly Typed Programming
acme-strtok library: A Haskell port of the C/PHP strtok function
acme-timemachine library: An easy way to perform and unperform IO and other stateful actions.
acme-year library, test and benchmark: Get the current year
acme-zalgo library: ...
acme-zero library: The absorbing element of package dependencies
apply-unordered library and test: Apply a function to an argument specified by a type level Nat
apply-unordered-mono library and test: Apply functions to arguments in an unordered type-directed fashion
ascii-cows library: A collection of ASCII cows. Moo.
empty library: Ceci n'est pas une package
hero-club-five-tenets library and program: Think back of the five tenets of hero club
icfpc2020-galaxy library: A strange message received at the Pegovka observatory
lacroix library: fizzy n dizzy
monadacme library: The Acme and AcmeT monads
plumbers library: Pointless plumbing combinators
redesigned-carnival library: Package for dependency confusion
roller library and program: Playing with applicatives and dice!
typesafe-precure library and test: Type-safe transformations and purifications of PreCures (Japanese Battle Heroine)
yes-precure5-command library, program and test: Extended yes command to reproduce phrases in Yes! Precure 5.

Actors

theatre library: Minimalistic actor library

Adjunctions

adjunction library, test and benchmark: See README for more info
adjunctions library and test: Adjunctions and representable functors

ADSB

stratux library: A library for stratux
stratux-demo library and program: A demonstration of the stratux library.
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux

Aeson

aeson-extra library and test: Extra goodies for aeson
aeson-helper library: Aeson helper func
aeson-result library: API Result for aeson

AI

attoparsec-arff library: An ARFF file parser using Attoparsec
bpann library: backpropagation neuronal network
CarneadesDSL library: An implementation and DSL for the Carneades argumentation model.
CarneadesIntoDung library and program: A translation from the Carneades argumentation model into Dung's AFs.
creatur library and test: Framework for artificial life experiments.
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
CV library: OpenCV based machine vision library
cv-combinators library and program: Functional Combinators for Computer Vision
Dung library and program: An implementation of the Dung argumentation frameworks.
Etage library: A general data-flow framework
fast-downward library: Solve classical planning problems (STRIPS/SAS+) using Haskell & Fast Downward.
fei-base library and program: FFI to MXNet
fei-cocoapi library and program: Cocodataset with cocoapi
fei-dataiter library, program and tests: mxnet dataiters
fei-datasets library and programs: Some datasets
fei-examples programs: fei examples
fei-modelzoo library: A collection of standard models
fei-nn library: Train a neural network with MXNet in Haskell.
finito library and tests: Constraint Solver for Finite Domains
GA library: Genetic algorithm library
genprog library: Genetic programming library
grenade library, test and benchmarks: Practical Deep Learning in Haskell
HasGP library: A Haskell library for inference using Gaussian processes
HaskellNN library: High Performance Neural Network in Haskell
hasktorch library, programs and test: Torch for tensors and neural networks in Haskell
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-indef library and test: Core Hasktorch abstractions wrapping FFI bindings
hasktorch-signatures library and programs: Backpack signatures for Tensor operations
hasktorch-signatures-partial library: Functions to partially satisfy tensor signatures
hasktorch-signatures-support library: Signatures for support tensors in hasktorch
hasktorch-signatures-types library: Core types for Hasktorch backpack signatures
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hasktorch-zoo library: Neural architectures in hasktorch
HaVSA library and program: An implementation of the Version Space Algebra learning framework.
heukarya library: A genetic programming based on tree structure.
hfann library and program: Haskell binding to the FANN library
hgalib library: Haskell Genetic Algorithm Library
hmep library, programs and test: HMEP Multi Expression Programming – a genetic programming variant
hnn library: A reasonably fast and simple neural network library
HOpenCV library and program: A binding for the OpenCV computer vision library
hopfield library, programs and test: Hopfield Networks, Boltzmann Machines and Clusters
hpylos program: AI of Pylos game with GLUT interface.
HSGEP library and programs: Gene Expression Programming evolutionary algorithm in Haskell
huff library and program: A fast-foward-based planner
hVOIDP library and program: Optimal variable selection in chain graphical model.
instinct library: Fast artifical neural networks
keera-posture program and tests: Get notifications when your sitting posture is inappropriate.
liblinear-enumerator library: liblinear iteratee.
markov-processes library and test: Hidden Markov processes.
mines program: Minesweeper simulation using neural networks
moo library and test: Genetic algorithm library
mxnet-dataiter library and tests: mxnet dataiters
mxnet-nn library and program: Train a neural network with MXNet in Haskell.
neet library: A NEAT library for Haskell
neural-network-base library: Yet Another High Performance and Extendable Neural Network in Haskell
neural-network-blashs library and test: Yet Another High Performance and Extendable Neural Network in Haskell
neural-network-hmatrix library: Yet Another High Performance and Extendable Neural Network in Haskell
nn library and test: A tiny neural network
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
opencv library, tests and benchmark: Haskell binding to OpenCV-3.x
opencv-extra library and test: Haskell binding to OpenCV-3.x extra modules
opencv-raw library: Raw Haskell bindings to OpenCV >= 2.0
Probnet library: Geometric Extrapolation of Integer Sequences with error prediction
sandlib library: SAND data serialization and manipulation library
simple-genetic-algorithm library and program: Simple parallel genetic algorithm implementation
simple-genetic-algorithm-mr library and program: Simple parallel genetic algorithm implementation
simple-neural-networks library and programs: Simple parallel neural networks implementation
SimpleEA library: Simple evolutionary algorithm framework.
smarties library, programs and test: Haskell Behavior Tree Library
SoccerFun library and program: Football simulation framework for teaching functional programming
SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
svm library: A support vector machine written in Haskell
svm-simple library: Medium level, simplified, bindings to libsvm
tensor-safe library and program: Create valid deep neural network architectures

Algebra

acts library: Semigroup actions and torsors.
agum library and program: Unification and Matching in an Abelian Group
algebra library: Constructive abstract algebra
algebraic library: General linear algebra structures.
algebraic-graphs library and test: A library for algebraic graph construction and transformation
cayley-dickson library and test: Complex numbers, quaternions, octonions, sedenions, etc.
cl3 library, test and benchmark: Clifford Algebra of three dimensional space.
cl3-hmatrix-interface library: Interface to/from Cl3 and HMatrix.
cl3-linear-interface library: Interface to/from Cl3 and Linear.
clif library, test and benchmark: A Clifford algebra number type for Haskell
clipper library: Haskell API to clipper (2d polygon union/intersection/xor/clipping API)
cmu library and program: Unification in a Commutative Monoid
constructive-algebra library: A library of constructive algebra.
csa library and test: Connection-set algebra (CSA) library
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
fadno-braids library: Braid representations in Haskell
finite-field library and test: Finite Fields
free-algebras library and test: Free algebras
free-category library, test and benchmark: efficient data types for free categories and arrows
gasp library: A framework of algebraic classes
ghc-bignum : GHC BigNum library
group-theory library: The theory of groups
groups library: Groups
groups-generic library: Generically derive Group instances.
haskell-eigen-util library and test: Some utility functions for haskell-eigen library
integer-gmp library: Integer library based on GMP
interval-algebra library and test: An implementation of Allen's interval algebra for temporal logic
involutive-semigroups library: Semigroups with involution.
linear library and tests: Linear Algebra
linear-accelerate library and test: Lifting linear vector spaces into Accelerate
linear-grammar library and test: A simple grammar for building linear equations and inclusive inequalities.
linear-tests library and test: Linear Algebra
magma library and test: magma is an algebraic structure.
metamorphic library: metamorphisms: ana . cata or understanding folds and unfolds
monoid-absorbing library: A library for (left, right) zero monoids and backtracking with cut
monoid-subclasses library and test: Subclasses of Monoid
multi-instance library and test: Typeclasses augmented with a phantom type parameter
nats library: Natural numbers
partial-semigroup library and tests: A partial binary associative operator
partial-semigroup-hedgehog library: Property testing for partial semigroups using Hedgehog
partial-semigroup-test library: Testing utilities for the partial-semigroup package
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semirings library: two monoids as one, in holy haskimony
sign library and test: Arithmetic over signs and sets of signs
simplex-basic library and test: Very basic simplex implementation.
sparse-tensor library and test: typesafe tensor algebra library
subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
tropical-geometry library, program, test and benchmark: A Tropical Geometry package for Haskell
unification-fd library: Simple generic unification algorithms.
yap library: yet another prelude - a simplistic refactoring with algebraic classes

Algorithm

jps library: Jump point search for Haskell
kmeans-par library, test and benchmark: Sequential and parallel implementations of Lloyd's algorithm.
longshot library, program and test: Fast Brute-force search using parallelism
pathfinding library: pathfinding in grid and graphs
Ritt-Wu library, program, test and benchmark: Parallel implementation of Ritt-Wu's algorithm.
search-algorithms library and tests: Common graph search algorithms

Algorithm Visualization

provenience library and program: Computations that automatically track data dependencies
treeviz library, program and test: Visualization of computation decomposition trees.

Algorithmic Music Composition

AlgoRhythm library, program and test: Algorithmic music composition

Algorithms

Adaptive library and program: Library for incremental computing.
adp-multi library, programs and test: ADP for multiple context-free languages
adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionSet library and test: Dynamic programming for Set data structures.
aeson-diff library, programs and tests: Extract and apply patches to JSON documents.
AlanDeniseEricLauren library, test and benchmark: Find the minimal subset/submap satisfying some property.
algebraic-graphs library and test: A library for algebraic graph construction and transformation
AlignmentAlgorithms library: Collection of alignment algorithms
arithmoi library, test and benchmarks: Efficient basic number-theoretic functions.
binary-search library and tests: Binary and exponential searches
Binpack library: Common bin-packing heuristics.
bordacount library and test: Implementation of the Borda count election method.
build library and test: Build systems a la carte
cmaes library and test: CMA-ES wrapper in Haskell
concorde library: Simple interface to the Concorde solver for the Traveling Salesperson Problem
concurrent-sa library: Concurrent simulated annealing system.
cubicspline library: Natural cubic spline interpolation.
DecisionTree library: A very simple implementation of decision trees for discrete attributes.
dgim library and test: Implementation of DGIM algorithm
Diff library and test: O(ND) diff algorithm in haskell.
DifferentialEvolution library: Global optimization using Differential Evolution
DimensionalHash library: An n-dimensional hash using Morton numbers.
dom-lt library, test and benchmark: The Lengauer-Tarjan graph dominators algorithm.
DP library: Pragmatic framework for dynamic programming
dtw library and test: (Fast) Dynamic Time Warping
edit-distance library, test and benchmark: Levenshtein and restricted Damerau-Levenshtein edit distances
edit-distance-linear library, program, test and benchmark: Efficient implementation of the Levenshtein edit distance in linear memory.
edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
epanet-haskell library: Haskell binding for EPANET
equivalence library and test: Maintaining an equivalence relation implemented as union-find using STT.
ersatz library, programs and tests: A monad for expressing SAT or QSAT problems using observable sharing.
ersatz-toysat library and programs: toysat driver as backend for ersatz
exact-cover library, program and test: Efficient exact cover solver.
fast-arithmetic library, test and benchmark: Fast functions on integers.
fibonacci library: Fast computation of Fibonacci numbers.
funsat library and program: A modern DPLL-style SAT solver
GA library: Genetic algorithm library
garsia-wachs library: A Functional Implementation of the Garsia-Wachs Algorithm
genprog library: Genetic programming library
graph-generators library, program and test: Functions for generating structured or random FGL graphs
Graphalyze library: Graph-Theoretic Analysis library.
graphs library: A simple monadic graph library
GraphSCC library: Tarjan's algorithm for computing the strongly connected components of a graph.
gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
heapsort library and programs: Heapsort of MArrays as a demo of imperative programming
hgal library: library for computation automorphism group and canonical labelling of a graph
hlcm library and programs: Fast algorithm for mining closed frequent itemsets
HMM library: A hidden markov model library
hmm library: A hidden markov model library
hps-kmeans library: A nice implementation of the k-Means algorithm.
htn library and test: resolver using htn algorithm
Hungarian-Munkres library, test and benchmark: A Linear Sum Assignment Problem (LSAP) solver
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
incremental-sat-solver library: Simple, Incremental SAT Solving as a Library
infinite-search library: Exhaustively searchable infinite sets.
integer-logarithms library and test: Integer logarithms.
integer-roots library and tests: Integer roots and perfect powers
iproute library and tests: IP Routing Table
kmeans library: K-means clustering algorithm
KMP library and test: Knuth–Morris–Pratt string searching algorithm
kmp-dfa library and test: KMP algorithm implementation, based on Deterministic Finite State Automata
lca library: O(log n) persistent online lowest common ancestor search without preprocessing
learning-hmm library: Yet another library for hidden Markov models
libgraph library: Store and manipulate data in a graph.
LinearSplit library: Partition the sequence of items to the subsequences in the order given
ListTree library: Trees and monadic trees expressed as monadic lists where the underlying monad is a list
majority library: Boyer-Moore Majority Vote Algorithm
markov-chain library: Markov Chains for generating random sequences with a user definable behaviour.
massiv-serialise library and tests: Compatibility of 'massiv' with 'serialise'
maximal-cliques library: Enumerate all maximal cliques of a graph.
mdp library, programs and test: Tools for solving Markov Decision Processes.
MIP library and test: Library for using Mixed Integer Programming (MIP)
MIP-glpk library and test: A GLPK backend to the MIP library.
moo library and test: Genetic algorithm library
Munkres library: Munkres' assignment algorithm (hungarian method)
Munkres-simple library: Simple and typesafe layer over the Munkres package.
natural-sort library: User-friendly text collation
nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
Numbers library: An assortment of number theoretic functions
outsort program: External sorting package based on Conduit
palindromes library and program: Finding palindromes in strings
patience library: Patience diff and longest increasing subsequence
pell library and test: Package to solve the Generalized Pell Equation.
pqueue-mtl library: Fully encapsulated monad transformers with queuelike functionality.
presburger library and test: A decision procedure for quantifier-free linear arithmetic.
primal library, tests and benchmark: Primeval world of Haskell.
primal-memory library, test and benchmarks: Unified interface for memory managemenet.
primes library: Efficient, purely functional generation of prime numbers
primes-type library, test and benchmark: Type-safe prime numbers.
primesieve library and programs: FFI bindings for the primesieve library.
PropLogic library and program: Propositional Logic
pure-shuffle library and test
qchas library, program and test: A library for implementing Quantum Algorithms
quadratic-irrational library and tests: An implementation of quadratic irrationals
queuelike library: A library of queuelike data structures, both functional and stateful.
rangemin library: Linear range-min algorithms.
raz library, test and benchmarks: Random Access Zippers
rspp library: A Rational Street Performer Protocol solver
sat programs: CNF SATisfier
sat-micro-hs program: A minimal SAT solver
satchmo-backends library: driver for external satchmo backends
satchmo-examples programs: examples that show how to use satchmo
satchmo-funsat library: funsat driver as backend for satchmo
satchmo-toysat library: toysat driver as backend for satchmo
seqalign library: Sequence Alignment
set-cover library, programs, test and benchmark: Solve exact set cover problems like Sudoku, 8 Queens, Soma Cube, Tetris Cube
smartGroup library: group strings or bytestrings by words in common
spacefill library and test: Generators for space-filling curves.
stable-marriage library and test: algorithms around stable marriage
strips library and test: resolver using strips algorithm
svm-simple library: Medium level, simplified, bindings to libsvm
teams library: Graphical modeling tools for sequential teams
text-metrics library, test and benchmarks: Calculate various string metrics efficiently
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
TrieMap library: Automatic type inference of generalized tries with Template Haskell.
tsne library, programs and test: t-SNE
twentyseven library, program and test: Rubik's cube solver
unification-fd library: Simple generic unification algorithms.
union-find library: Efficient union and equivalence testing of sets.
union-find-array library: union find data structure
wordsearch library and program: A word search solver library and executable
yices-easy library: Simple interface to the Yices SMT (SAT modulo theories) solver.

Amqp

amqp-streamly library and test: A simple streamly wrapper for amqp

Anatomy

teeth library: Dental data types

Animation

cal3d library: Haskell binding to the Cal3D animation library.
cal3d-examples programs: Examples for the Cal3d animation library.
cal3d-opengl library: OpenGL rendering for the Cal3D animation library
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.

ANSI

colourista library and test: Convenient interface for printing colourful messages

AOP

effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...

API

aeson-result library: API Result for aeson
alerta library: Bindings to the alerta REST API
approveapi library and test: ApproveAPI Haskell Client
arxiv library: A client for the Arxiv API
bighugethesaurus library: API wrapper for Big Huge Thesaurus
circlehs library: The CircleCI REST API for Haskell
dialogflow-fulfillment library and test: A Dialogflow Fulfillment library for Haskell.
doublify-toolkit library: Doublify API toolkit for Haskell
dropbox library, program and test: Dropbox API client
exchangerates library and test: A Haskell client for https://exchangeratesapi.io/
factual-api library: A driver for the Factual API
fixer library and test: A Haskell client for http://fixer.io/
gitter library: Gitter.im API client
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
kawhi library and test: stats.NBA.com library
leankit-api library: LeanKit API
messente library: Messente SMS Gateway
nylas library: Client for the Nylas API
oanda-rest-api library and tests: Client to the OANDA REST API
plotserver-api library: Plotserver API
pokitdok library: PokitDok Platform API Client for Haskell
pubnub library, programs and test: PubNub Haskell SDK
quandl-api library: Quandl.com API library
rdioh library and programs: A Haskell wrapper for Rdio's API.
reflex-gadt-api library and program: Interact with a GADT API in your reflex-dom application.
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
speechmatics library, program and test: Speechmatics api client
strive library: A client for the Strava V3 API.
tablestorage library: Azure Table Storage REST API Wrapper
textocat-api library and test: Unofficial Haskell SDK for Textocat API -- http://textocat.com
themoviedb library, program and test: Haskell API bindings for http://themoviedb.org
twfy-api-client library, program and test: They Work For You API Client Library
uploadcare library: Haskell client for Uploadcare.
voicebase library, program and test: Upload audio files to voicebase to get a transcription
weather-api library: Weather API implemented in Haskell
zendesk-api library: Zendesk API for Haskell programming language.

Apple

hs-pkpass library: A library for Passbook pass creation & signing
maclight library, program and test: Control screen and keyboard backlights on MACs under Linux
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Application

boots library and test: IoC Monad in Haskell
boots-app library and program: Factory for quickly building an application
boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
cantor program and test: Application for analysis of java source code
epub-tools programs and test: Command line utilities for working with epub files
epubname program: Rename epub ebook files based on meta information
follower program: Follow Tweets anonymously
ghclive library and program: Interactive Haskell interpreter in a browser.
Gifcurry library and programs: GIF creation utility.
graph-rewriting-cl program: Interactive graph rewriting system implementing various well-known combinators
graph-rewriting-lambdascope program: Lambdascope, an optimal evaluator of the lambda calculus, ...
graph-rewriting-ski programs: Two evalutors of the SKI combinator calculus as interactive graph rewrite systems
graph-rewriting-trs program: Evaluate first-order applicative term rewrite systems interactively using graph reduction
graph-rewriting-ww program: ...
haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
hscrtmpl program: Haskell shell script template
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
iptadmin program: web-interface for iptables
movie-monad program: Plays videos using GStreamer and GTK+.
nix-freeze-tree library, program and test: Convert a tree of files into fixed-output derivations
opn program: Open files or URLs using associated programs.
pb program: pastebin command line application
perceptual-hash library, program, test and benchmark: Find duplicate images
photoname program and test: Rename photo image files based on EXIF shoot date
squeeze library, program and test: A file-packing application.
sshtun program: Wrapper daemon to manage an ssh tunnel
text-replace library, program and test: Simple text replacements from a list of search/replace pairs
themplate program: Project templating tool
thimk programs: Command-line spelling word suggestion tool
traypoweroff program: Tray Icon application to PowerOff / Reboot computer
weekdaze library, program and test: A school-timetable problem-solver.
wordlist library and program: Command-line tool to get random words

Application Server

MFlow library: stateful, RESTful web framework
Saturnin library, program and tests: Saturnin CI / Job System

Applicative

uu-interleaved library: An interleaving combinator for use with applicative style implementations.

Argumentation

arguedit program: A computer assisted argumentation transcription and editing software.
CarneadesDSL library: An implementation and DSL for the Carneades argumentation model.
CarneadesIntoDung library and program: A translation from the Carneades argumentation model into Dung's AFs.
Dung library and program: An implementation of the Dung argumentation frameworks.

Arithmetic

safe-numeric library and test: Safe arithmetic operations.

Array

accelerate-kullback-liebler library, test and benchmark: Kullback-Liebler divergence
array-list library and tests: IsList instances of Array for OverloadedLists extension
contiguous library, tests and benchmark: Unified interface for primitive arrays
j library and test: J in Haskell
massiv library and test: Massiv (Массив) is an Array Library.
massiv-persist library and tests: Compatibility of 'massiv' with 'persist'
orthotope library and test: Multidimensional arrays inspired by APL
primitive-checked library: primitive functions with bounds-checking
primitive-maybe library and test: Arrays of Maybes

Arrows

Parallel-Arrows-BaseSpec library and test: BaseSpecs used for @Parallel-Arrows-Definition@ and Co.
Parallel-Arrows-Definition library: Multithreaded evaluation using Arrows.
Parallel-Arrows-Eden library and test: Eden based backend for @Parallel-Arrows-Definition@.
Parallel-Arrows-Multicore library and test: GpH based backend for @Parallel-Arrows-Definition@ in a multicore variant.
Parallel-Arrows-ParMonad library and test: Par Monad (@monad-par@) based backend for @Parallel-Arrows-Definition@.
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks

Artificial Intelligence

mios library, programs and test: A Minisat-based CDCL SAT solver in Haskell
opencog-atomspace library: Haskell Bindings for the AtomSpace.

Arxiv

arxiv library: A client for the Arxiv API

ASP

clingo library and programs: Haskell bindings to the Clingo ASP solver

Aspect Oriented Programming

effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...

AST

typerbole library and test: A typesystems library with exaggerated claims

Astrology

swiss-ephemeris library and test: Haskell bindings for the Swiss Ephemeris C library

Astronomy

solar library: Simple library for solar calculations

Atom

manatee-reader library and program: Feed reader extension for Manatee.

ATS

ats-format program: A source-code formatter for ATS
ats-pkg library and program: A build tool for ATS
ats-setup library: ATS scripts for Cabal builds
ats-storable library and test: Marshal ATS types into Haskell
fast-arithmetic library, test and benchmark: Fast functions on integers.
hs2ats library, program, test and benchmark: Create ATS types from Haskell types
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
shake-ats library: Utilities for building ATS projects with shake

Attoparsec

attoparsec-time library: Attoparsec parsers of time
ping-parser-attoparsec library, program and test: Attoparsec parsers of ping utility

Attribute Grammars

XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Audio

algorithmic-composition-overtones library: Some variants of the overtones functions to generate a timbre.
cue-sheet library and test: Support for construction, rendering, and parsing of CUE sheets
flac library and test: Complete high-level binding to libFLAC
flac-picture library and test: Support for writing picture to FLAC metadata blocks with JuicyPixels
HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
lame library and test: Fairly complete high-level binding to LAME encoder
libtagc library: Binding to TagLib C library.
mediabus-rtp library, program and test: Receive and Send RTP Packets
MusicBrainz-libdiscid library: Binding to libdiscid by MusicBrainz
taglib-api library: An FFI layer over TagLib's C bindings
vivid library: Sound synthesis with SuperCollider
vivid-osc library and test: Open Sound Control encode/decode
vivid-supercollider library and test: Implementation of SuperCollider server specifications
wave library and test: Work with WAVE and RF64 files

Authentication

fernet library, program and test: Generate and verify HMAC-based authentication tokens.
gamgee library, program and test: Tool for generating TOTP MFA tokens.
hsoz library, programs and test: Iron, Hawk, Oz: Web auth protocols
my-test-docs library and tests: spam
orizentic library, program and test: Token-based authentication and authorization
pam library: Haskell binding for C PAM API
servant-auth library: Authentication combinators for servant
servant-auth-client library and test: servant-client/servant-auth compatibility
servant-auth-docs library and tests: servant-docs/servant-auth compatibility
servant-auth-server library and tests: servant-server/servant-auth compatibility
servant-auth-swagger library and test: servant-swagger/servant-auth compatibility
thentos-cookie-session library and test: All-in-one session handling for servant-based frontends

Automatic Music Generation

AlgoRhythm library, program and test: Algorithmic music composition

Automation

eibd-client-simple library: EIBd Client
hsautogui library and test: Haskell bindings for PyAutoGUI, a library for automating user interaction
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Avers

avers library, test and benchmark: Server-side implementation of the Avers storage model
avers-api library: Types describing the core and extended Avers APIs
avers-api-docs library: Swagger documentation for the Avers API
avers-server library: Server implementation of the Avers API

Aviation

aip library, program and test: Aeronautical Information Package (AIP)
aviation-cessna172-diagrams library: Diagrams for the Cessna 172 aircraft in aviation.
aviation-cessna172-weight-balance library: Weight and Balance for the Cessna 172 aircraft in aviation.
aviation-units library: Units of measurements used in aviation.
aviation-weight-balance library: Weight and Balance structures used in aviation.
avwx library, program and test: Parse aviation weather reports
casa-abbreviations-and-acronyms library and programs: CASA Abbreviations and Acronyms
casr-logbook library: CASR 61.345 Pilot Personal Logbook
casr-logbook-html library and test: CASR 61.345 Pilot Personal Logbook HTML output
casr-logbook-meta library and test: Meta-information about entries in a CASR 61.345 logbook (casr-logbook)
casr-logbook-meta-html library and test: Meta-information about entries in a CASR 61.345 logbook (casr-logbook) HTML output
casr-logbook-reports library and test: CASR 61.345 logbook (casr-logbook) reports.
casr-logbook-reports-html library and test: CASR 61.345 logbook reports HTML output
casr-logbook-reports-meta library and test: Reports on meta-information about entries in a CASR 61.345 logbook (casr-logbook)
casr-logbook-reports-meta-html library and test: HTML output for reports on meta-information about entries in a CASR 61.345 logbook
casr-logbook-types library and test: CASR 61.345 Pilot Personal Logbook
ersaconcat library, program and test: A script to concatenate AIP ERSA
metar library, program and test: Australian METAR
metar-http library, program and test: HTTP for METAR
sixfiguregroup library and test: A six figure group of time
stratux library: A library for stratux
stratux-demo library and program: A demonstration of the stratux library.
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux
vfr-waypoints library and program: VFR waypoints, as published in the AIP (ERSA)

AWS

amazonka library and test: Comprehensive Amazon Web Services SDK.
amazonka-alexa-business library and test: Amazon Alexa For Business SDK.
amazonka-apigateway library and test: Amazon API Gateway SDK.
amazonka-application-autoscaling library and test: Amazon Application Auto Scaling SDK.
amazonka-appstream library and test: Amazon AppStream SDK.
amazonka-appsync library and test: Amazon AppSync SDK.
amazonka-athena library and test: Amazon Athena SDK.
amazonka-autoscaling library and test: Amazon Auto Scaling SDK.
amazonka-autoscaling-plans library and test: Amazon Auto Scaling Plans SDK.
amazonka-batch library and test: Amazon Batch SDK.
amazonka-budgets library and test: Amazon Budgets SDK.
amazonka-certificatemanager library and test: Amazon Certificate Manager SDK.
amazonka-certificatemanager-pca library and test: Amazon Certificate Manager Private Certificate Authority SDK.
amazonka-cloud9 library and test: Amazon Cloud9 SDK.
amazonka-clouddirectory library and test: Amazon CloudDirectory SDK.
amazonka-cloudformation library and test: Amazon CloudFormation SDK.
amazonka-cloudfront library and test: Amazon CloudFront SDK.
amazonka-cloudhsm library and test: Amazon CloudHSM SDK.
amazonka-cloudhsmv2 library and test: Amazon CloudHSM V2 SDK.
amazonka-cloudsearch library and test: Amazon CloudSearch SDK.
amazonka-cloudsearch-domains library and test: Amazon CloudSearch Domain SDK.
amazonka-cloudtrail library and test: Amazon CloudTrail SDK.
amazonka-cloudwatch library and test: Amazon CloudWatch SDK.
amazonka-cloudwatch-events library and test: Amazon CloudWatch Events SDK.
amazonka-cloudwatch-logs library and test: Amazon CloudWatch Logs SDK.
amazonka-codebuild library and test: Amazon CodeBuild SDK.
amazonka-codecommit library and test: Amazon CodeCommit SDK.
amazonka-codedeploy library and test: Amazon CodeDeploy SDK.
amazonka-codepipeline library and test: Amazon CodePipeline SDK.
amazonka-codestar library and test: Amazon CodeStar SDK.
amazonka-cognito-identity library and test: Amazon Cognito Identity SDK.
amazonka-cognito-idp library and test: Amazon Cognito Identity Provider SDK.
amazonka-cognito-sync library and test: Amazon Cognito Sync SDK.
amazonka-comprehend library and test: Amazon Comprehend SDK.
amazonka-config library and test: Amazon Config SDK.
amazonka-connect library and test: Amazon Connect Service SDK.
amazonka-core library and test: Core data types and functionality for Amazonka libraries.
amazonka-cost-explorer library and test: Amazon Cost Explorer Service SDK.
amazonka-cur library and test: Amazon Cost and Usage Report Service SDK.
amazonka-datapipeline library and test: Amazon Data Pipeline SDK.
amazonka-devicefarm library and test: Amazon Device Farm SDK.
amazonka-directconnect library and test: Amazon Direct Connect SDK.
amazonka-discovery library and test: Amazon Application Discovery Service SDK.
amazonka-dms library and test: Amazon Database Migration Service SDK.
amazonka-ds library and test: Amazon Directory Service SDK.
amazonka-dynamodb library and test: Amazon DynamoDB SDK.
amazonka-dynamodb-dax library and test: Amazon DynamoDB Accelerator (DAX) SDK.
amazonka-dynamodb-streams library and test: Amazon DynamoDB Streams SDK.
amazonka-ec2 library and test: Amazon Elastic Compute Cloud SDK.
amazonka-ecr library and test: Amazon EC2 Container Registry SDK.
amazonka-ecs library and test: Amazon EC2 Container Service SDK.
amazonka-efs library and test: Amazon Elastic File System SDK.
amazonka-elasticache library and test: Amazon ElastiCache SDK.
amazonka-elasticbeanstalk library and test: Amazon Elastic Beanstalk SDK.
amazonka-elasticsearch library and test: Amazon Elasticsearch Service SDK.
amazonka-elastictranscoder library and test: Amazon Elastic Transcoder SDK.
amazonka-elb library and test: Amazon Elastic Load Balancing SDK.
amazonka-elbv2 library and test: Amazon Elastic Load Balancing SDK.
amazonka-emr library and test: Amazon Elastic MapReduce SDK.
amazonka-fms library and test: Amazon Firewall Management Service SDK.
amazonka-gamelift library and test: Amazon GameLift SDK.
amazonka-glacier library and test: Amazon Glacier SDK.
amazonka-glue library and test: Amazon Glue SDK.
amazonka-greengrass library and test: Amazon Greengrass SDK.
amazonka-guardduty library and test: Amazon GuardDuty SDK.
amazonka-health library and test: Amazon Health APIs and Notifications SDK.
amazonka-iam library and test: Amazon Identity and Access Management SDK.
amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
amazonka-importexport library and test: Amazon Import/Export SDK.
amazonka-inspector library and test: Amazon Inspector SDK.
amazonka-iot library and test: Amazon IoT SDK.
amazonka-iot-analytics library and test: Amazon IoT Analytics SDK.
amazonka-iot-dataplane library and test: Amazon IoT Data Plane SDK.
amazonka-iot-jobs-dataplane library and test: Amazon IoT Jobs Data Plane SDK.
amazonka-kinesis library and test: Amazon Kinesis SDK.
amazonka-kinesis-analytics library and test: Amazon Kinesis Analytics SDK.
amazonka-kinesis-firehose library and test: Amazon Kinesis Firehose SDK.
amazonka-kinesis-video library and test: Amazon Kinesis Video Streams SDK.
amazonka-kinesis-video-archived-media library and test: Amazon Kinesis Video Streams Archived Media SDK.
amazonka-kinesis-video-media library and test: Amazon Kinesis Video Streams Media SDK.
amazonka-kms library and test: Amazon Key Management Service SDK.
amazonka-lambda library and test: Amazon Lambda SDK.
amazonka-lex-models library and test: Amazon Lex Model Building Service SDK.
amazonka-lex-runtime library and test: Amazon Lex Runtime Service SDK.
amazonka-lightsail library and test: Amazon Lightsail SDK.
amazonka-marketplace-analytics library and test: Amazon Marketplace Commerce Analytics SDK.
amazonka-marketplace-entitlement library and test: Amazon Marketplace Entitlement Service SDK.
amazonka-marketplace-metering library and test: Amazon Marketplace Metering SDK.
amazonka-mechanicalturk library and test: Amazon Mechanical Turk SDK.
amazonka-mediaconvert library and test: Amazon Elemental MediaConvert SDK.
amazonka-medialive library and test: Amazon Elemental MediaLive SDK.
amazonka-mediapackage library and test: Amazon Elemental MediaPackage SDK.
amazonka-mediastore library and test: Amazon Elemental MediaStore SDK.
amazonka-mediastore-dataplane library and test: Amazon Elemental MediaStore Data Plane SDK.
amazonka-migrationhub library and test: Amazon Migration Hub SDK.
amazonka-ml library and test: Amazon Machine Learning SDK.
amazonka-mobile library and test: Amazon Mobile SDK.
amazonka-mq library and test: Amazon MQ SDK.
amazonka-opsworks library and test: Amazon OpsWorks SDK.
amazonka-opsworks-cm library and test: Amazon OpsWorks for Chef Automate SDK.
amazonka-organizations library and test: Amazon Organizations SDK.
amazonka-pinpoint library and test: Amazon Pinpoint SDK.
amazonka-polly library and test: Amazon Polly SDK.
amazonka-pricing library and test: Amazon Price List Service SDK.
amazonka-rds library and test: Amazon Relational Database Service SDK.
amazonka-redshift library and test: Amazon Redshift SDK.
amazonka-rekognition library and test: Amazon Rekognition SDK.
amazonka-resourcegroups library and test: Amazon Resource Groups SDK.
amazonka-resourcegroupstagging library and test: Amazon Resource Groups Tagging API SDK.
amazonka-route53 library and test: Amazon Route 53 SDK.
amazonka-route53-autonaming library and test: Amazon Route 53 Auto Naming SDK.
amazonka-route53-domains library and test: Amazon Route 53 Domains SDK.
amazonka-s3 library and test: Amazon Simple Storage Service SDK.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
amazonka-sagemaker library and test: Amazon SageMaker Service SDK.
amazonka-sagemaker-runtime library and test: Amazon SageMaker Runtime SDK.
amazonka-sdb library and test: Amazon SimpleDB SDK.
amazonka-secretsmanager library and test: Amazon Secrets Manager SDK.
amazonka-serverlessrepo library and test: Amazon ServerlessApplicationRepository SDK.
amazonka-servicecatalog library and test: Amazon Service Catalog SDK.
amazonka-ses library and test: Amazon Simple Email Service SDK.
amazonka-shield library and test: Amazon Shield SDK.
amazonka-sms library and test: Amazon Server Migration Service SDK.
amazonka-snowball library and test: Amazon Import/Export Snowball SDK.
amazonka-sns library and test: Amazon Simple Notification Service SDK.
amazonka-sqs library and test: Amazon Simple Queue Service SDK.
amazonka-ssm library and test: Amazon Simple Systems Manager (SSM) SDK.
amazonka-stepfunctions library and test: Amazon Step Functions SDK.
amazonka-storagegateway library and test: Amazon Storage Gateway SDK.
amazonka-sts library and test: Amazon Security Token Service SDK.
amazonka-support library and test: Amazon Support SDK.
amazonka-swf library and test: Amazon Simple Workflow Service SDK.
amazonka-test library: Common functionality for Amazonka library test-suites.
amazonka-transcribe library and test: Amazon Transcribe Service SDK.
amazonka-translate library and test: Amazon Translate SDK.
amazonka-waf library and test: Amazon WAF SDK.
amazonka-waf-regional library and test: Amazon WAF Regional SDK.
amazonka-workdocs library and test: Amazon WorkDocs SDK.
amazonka-workmail library and test: Amazon WorkMail SDK.
amazonka-workspaces library and test: Amazon WorkSpaces SDK.
amazonka-xray library and test: Amazon X-Ray SDK.
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-arn library and test: Types and optics for manipulating Amazon Resource Names (ARNs)
aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-dynamodb-conduit library: Conduit-based interface for AWS DynamoDB
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-ec2-knownhosts library and programs: Capture and manage AWS EC2 known_host pubkeys
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-lambda-haskell-runtime library and test: Haskell runtime for AWS Lambda
aws-lambda-haskell-runtime-wai library and test: Run wai applications on AWS Lambda
aws-lambda-runtime library and program: Haskell on AWS Lambda Runtime API
aws-larpi library: Package Haskell functions for easy use on AWS Lambda.
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-sdk library and test: AWS SDK for Haskell
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
credentials library and test: Secure Credentials Storage and Distribution
credentials-cli program: Secure Credentials Administration
ec2-unikernel program: A handy tool for uploading unikernels to Amazon's EC2.
eventful-dynamodb library and test: Library for eventful DynamoDB event stores
groot library, program and test: Command line utility to manage AWS ECS resources
hal library and test: A runtime environment for Haskell applications running on AWS Lambda.
hs-aws-lambda library and test: A modern and easy-to-use wrapper for Docker-based Lambda implementations
infernal library: The Infernal Machine - An AWS Lambda Custom Runtime for Haskell
kerry library and test: Manage and abstract your packer configurations.
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
minio-hs library, programs and tests: A MinIO Haskell Library for Amazon S3 compatible cloud storage.
mismi-core library and tests: AWS Library
mismi-kernel library and test: AWS Library
mismi-s3 library, tests and benchmark: AWS Library
mismi-s3-core library and test: AWS Library
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
s3-signer library and test: Pre-signed Amazon S3 URLs
serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
ses-html-snaplet library: Snaplet for the ses-html package
snaplet-ses-html library: Snaplet for the ses-html package
stratosphere library, programs and test: EDSL for AWS CloudFormation
wai-handler-hal library: Wrap WAI applications to run on AWS Lambda
wolf library and programs: Amazon Simple Workflow Service Wrapper.

Azure

azure-functions-worker library and test: Azure Functions Worker

Backup

bkr library and program: Backup utility for backing up to cloud storage services (S3 only right now)
multiplicity program: Wrapper program for duplicity, adding config files
pinboard-notes-backup program: Back up the notes you've saved to Pinboard

Barcode

zbar library: zbar bindings in Haskell

Base

guid library and test: A simple wrapper around uuid

Benchmark

concurrency-benchmarks program and benchmark: Benchmarks to compare concurrency APIs
streaming-benchmarks program and benchmark: Benchmarks to compare streaming packages

Benchmarking

bench-graph library and test: Plot and compare benchmarks
bench-show library, program and tests: Show, plot and compare benchmark results
BenchmarkHistory library and program: Benchmark functions with history
chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
cloben program: Clone and benchmark Haskell cabal projects
containers-benchmark program: Extensive benchmark suite for containers package.
criterion library, program and tests: Robust, reliable performance measurement and analysis
criterion-measurement library: Criterion measurement functionality and associated types
criterion-plus library and test: Enhancement of the "criterion" benchmarking library
feed-gipeda library, program and test: CI service around gipeda
fibon programs: Tools for running and analyzing Haskell benchmarks
freer-simple-profiling library and test: Automatic profling of freer-simple programs
gauge tests and benchmark: small framework for performance measurement and analysis
hashtable-benchmark program: Benchmark of hash table implementations
hyperion library, programs and test: Reliable performance measurement with robust data export.
paramtree library and test: Generate labelled test/benchmark trees from sets of parameters
tasty-bench library: Featherlight benchmark framework

Big Data

karps library and tests: Haskell bindings for Spark Dataframes and Datasets
krapsh library and tests: Haskell bindings for Spark Dataframes and Datasets

Binary

binary-orphans library and test: Compatibility package for binary; provides instances
binary-parser library and test: A highly-efficient but limited parser API specialised for bytestrings
streamly-binary library and test: Integration of streamly and binary

Bindings

bindings-codec2 library and program: Very low-level FFI bindings for Codec2
bindings-nettle library and test: bindings to nettle crypto library
cli-git library: Bindings to the git command-line interface
cli-nix library: Bindings to the nix command-line interface
gi-atk library: Atk bindings
gi-cairo library: Cairo bindings
gi-dbusmenu library: Dbusmenu bindings
gi-dbusmenugtk3 library: DbusmenuGtk bindings
gi-gdk library: Gdk bindings
gi-gdkpixbuf library: GdkPixbuf bindings
gi-gdkx11 library: GdkX11 bindings
gi-ggit library: libgit2-glib bindings
gi-gio library: Gio bindings
gi-girepository library: GIRepository (gobject-introspection) bindings
gi-glib library: GLib bindings
gi-gmodule library: GModule bindings
gi-gobject library: GObject bindings
gi-graphene library: Graphene bindings
gi-gsk library: Gsk bindings
gi-gst library: GStreamer bindings
gi-gstaudio library: GStreamerAudio bindings
gi-gstbase library: GStreamerBase bindings
gi-gstpbutils library: GStreamer Plugins Base Utils bindings
gi-gsttag library: GStreamer Tag bindings
gi-gstvideo library: GStreamerVideo bindings
gi-gtk library: Gtk bindings
gi-gtkosxapplication library: GtkosxApplication bindings
gi-gtksheet library: GtkSheet bindings
gi-gtksource library: GtkSource bindings
gi-handy library: libhandy bindings
gi-harfbuzz library: HarfBuzz bindings
gi-ibus library: IBus bindings
gi-javascriptcore library: JavaScriptCore bindings
gi-notify library: Libnotify bindings
gi-ostree library: OSTree bindings
gi-pango library: Pango bindings
gi-pangocairo library: PangoCairo bindings
gi-poppler library: Poppler bindings
gi-secret library: Libsecret bindings
gi-soup library: Libsoup bindings
gi-vips library: libvips GObject bindings
gi-vte library: Vte bindings
gi-webkit library: WebKit bindings
gi-webkit2 library: WebKit2 bindings
gi-webkit2webextension library: WebKit2-WebExtension bindings
gi-wnck library: Wnck bindings
gi-xlib library: xlib bindings
haskell-gi-overloading library: Overloading support for haskell-gi
nfc library and program: libnfc bindings
souffle-haskell library and test: Souffle Datalog bindings for Haskell
TORCS library and program: Bindings to the TORCS vehicle simulator.
ViennaRNA-bindings library and test: ViennaRNA v2 bindings
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Bio

bbi library and test: Tools for reading Big Binary Indexed files, e.g., bigBed, bigWig
bio-sequence library and tests: Initial project template from stack
bioinformatics-toolkit library, test and benchmark: A collection of bioinformatics tools
cobot library, test and benchmark: ...
cobot-io library and test: Biological data file formats and IO
cobot-tools library and test: Biological data file formats and IO
HsHTSLib library and test: Bindings to htslib.
uniprot-kb library and test: UniProt-KB format parser

Bioinformatics

a50 program: Compare genome assemblies
adp-multi library, programs and test: ADP for multiple context-free languages
adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionForest library, programs, test and benchmark: Dynamic programming on tree and forest structures
ADPfusionSet library and test: Dynamic programming for Set data structures.
AlignmentAlgorithms library: Collection of alignment algorithms
bamstats library and program: A program to extract various information from BAM alignmnet files.
BCMtools library and program: Big Contact Map Tools
bio library and programs: A bioinformatics library
bioace library: Library for reading ace assembly files
bioalign library: Data structures and helper functions for calculating alignments
Biobase library: Base library for bioinformatics
BiobaseBlast library and test: BLAST-related tools
BiobaseDotP library: Vienna / DotBracket / ExtSS parsers
BiobaseEnsembl library: Ensembl related datastructures and functions
BiobaseFasta library and test: streaming FASTA parser
BiobaseFR3D library: Importer for FR3D resources
BiobaseHTTP library: Libary to interface with the Bioinformatics HTTP services - Entrez Ensembl
BiobaseHTTPTools programs: Tools to query Bioinformatics HTTP services e.g. Entrez, Ensembl.
BiobaseInfernal library, program, test and benchmark: Infernal data structures and tools
BiobaseMAF library: Multiple Alignment Format
BiobaseNewick library, program and test: Newick file format parser.
BiobaseTrainingData library and program: RNA folding training data
BiobaseTurner library: Import Turner RNA parameters
BiobaseTypes library and test: Collection of types for bioinformatics
BiobaseVienna library: Import Vienna energy parameters
BiobaseXNA library, program and test: Efficient RNA/DNA/Protein Primary/Secondary Structure
biocore library: A bioinformatics library
biofasta library: Library for reading fasta sequence files
biofastq library: A library for reading FASTQ files
biohazard library: bioinformatics support library
BioHMM library: Libary for Hidden Markov Models in HMMER3 format.
biophd library: Library for reading phd sequence files
biopsl library and programs: Library and executables for working with PSL files
biosff library and programs: Library and executables for working with SFF files
biostockholm library and test: Parsing and rendering of Stockholm files (used by Pfam, Rfam and Infernal).
birch-beer library and program: Plot a colorful tree.
BlastHTTP library: Libary to interface with the NCBI blast REST interface
blastxml library: Library for reading Blast XML output
blosum library and program: BLOSUM generator
classify-frog programs: Classify sounds produced by Xenopus laevis
ClustalParser library, program and test: Libary for parsing Clustal tools output
clustertools programs: Tools for manipulating sequence clusters
CMCompare library and program: Infernal covariance model comparison
cmv library and programs: Detailed visualization of CMs, HMMs and their comparisions
collapse-duplication library and program: Collapse the duplication output into clones and return their frequencies.
convert-annotation library and program: ...
dephd programs: Analyze quality of nucleotide sequences.
differential library and program: Finds out whether an entity comes from different distributions (statuses).
diversity library and program: Quantify the diversity of a population
DnaProteinAlignment library and program: Frameshift-aware alignment of protein sequences with DNA sequences
elynx program: Validate and (optionally) redo ELynx analyses
elynx-markov library, test and benchmark: Simulate molecular sequences along trees
elynx-nexus library and test: Import and export Nexus files
elynx-seq library and test: Handle molecular sequences
elynx-tools library: Tools for ELynx
elynx-tree library, test and benchmark: Handle phylogenetic trees
EntrezHTTP library: Libary to interface with the NCBI Entrez REST service.
estreps programs: Repeats from ESTs
flower programs: Analyze 454 flowgrams (.SFF files)
flowsim programs: Simulate 454 pyrosequencing
Forestry library, program, test and benchmark: Comparison of trees and forests.
ForestStructures library, test and benchmark: Tree- and forest structures
FormalGrammars library and test: (Context-free) grammars in formal language theory
gact program: General Alignment Clustering Tool
Genbank library and program: Libary for processing the NCBI genbank format
Gene-CluEDO library, program and test: Hox gene clustering
GenussFold library, program and test: MCFGs for Genus-1 RNA Pseudoknots
GrammarProducts library, program and test: Grammar products and higher-dimensional grammars
heatitup library and program: Find and annotate ITDs.
heatitup-complete library and program: Find and annotate ITDs with assembly or read pair joining.
hemokit library, programs, test and benchmarks: Haskell port of the Emokit EEG project
hierarchical-spectral-clustering library and program: Hierarchical spectral clustering of a graph.
hPDB library: Protein Databank file format library
hPDB-examples programs and test: Examples for hPDB library
hTalos library and test: Parser, print and manipulate structures in PDB file format.
hyraxAbif library, program and test: Modules for parsing, generating and manipulating AB1 files.
integreat library and program: Integrate different assays.
korfu program: The Korfu ORF Utility
MC-Fold-DP library and program: Folding algorithm based on nucleotide cyclic motifs.
memexml library: Library for reading Meme XML output
mmtf library and test: Macromolecular Transmission Format implementation
modify-fasta library and program: Modify fasta (and CLIP) files in several optional ways
modularity library: Find the modularity of a network.
MutationOrder library, program and test: Most likely order of mutation events in RNA
normalize library and program: Normalize data using a variety of methods.
Nussinov78 library and program: Nussinov78 using the ADPfusion library.
PDBtools library and program: A library for analysis of 3-D protein coordinates
phybin library, program and test: ...
pipes-ordered-zip library and test: merge two ordered Producers into a new Producer
rank-product library and program: Find the rank product of a data set.
rbr programs: Mask nucleotide (EST) sequences in Fasta format
RNAdesign library and program: Multi-target RNA sequence design
RNAdraw library and program: Draw RNA secondary structures
RNAFold library and programs: RNA secondary structure prediction
RNAFoldProgs programs: RNA secondary structure folding
RNAlien library and programs: Unsupervized construction of RNA family models
RNAwolf library and programs: RNA folding with non-canonical basepairs and base-triplets.
samtools library and program: Binding to the C samtools library
samtools-conduit library and program: Conduit interface to SAM/BAM format files through samtools
samtools-enumerator library: Enumerator interface to SamTools library
samtools-iteratee library and program: Iteratee interface to SamTools library
SelectSequencesFromMSA library and program: Selects a representative subset of sequences from multiple sequence alignment.
seqloc library and test: Handle sequence locations for bioinformatics
seqloc-datafiles library, programs and tests: Read and write BED and GTF format genome annotations
sequence-formats library and test: A package with basic parsing utilities for several Bioinformatic data formats.
sequenceTools library, programs and test: A package with tools for processing DNA sequencing data
sgrep program: Sgrep - grep Fasta files for sequences matching a regular expression
simseq program: Simulate sequencing with different models for priming and errors
slynx library and program: Handle molecular sequences
smiles library and tests
StockholmAlignment library: Libary for Stockholm aligmnent format
subsample library and program: Subsample data.
Taxonomy library: Libary for parsing, processing and vizualization of taxonomy data
TaxonomyTools programs: Tool for parsing, processing, comparing and visualizing taxonomy data
tex-join-bib library and program: Compile separate tex files with the same bibliography.
tlynx library and program: Handle phylogenetic trees
too-many-cells library and program: Cluster single cells and analyze cell clade relationships.
trimpolya program: Search for, annotate and trim poly-A tail
varan programs: Process mpileup output to identify significant differences
vcf library and test: A package to parse VCF files inspired in similar python libraries
ViennaRNA-bindings library and test: ViennaRNA v2 bindings
ViennaRNA-extras library and test: ViennaRNA v2 extensions
ViennaRNAParser library and test: Libary for parsing ViennaRNA package output
xml2x program: Convert BLAST output in XML format to CSV or HTML
xsact programs: Cluster EST sequences
zsyntax library and test: Automated theorem prover for the Zsyntax biochemical calculus

Bit

bits-extra library, tests and benchmark: Useful bitwise operations
hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-bits library, tests and benchmark: Bit manipulation
hw-dump library, program, tests and benchmark: File Dump
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-simd library, tests and benchmark: SIMD library
hw-simd-cli library, program and test: SIMD library
hw-string-parse library and test: String parser

Bit Vectors

bit-array library and test: A bit array (aka bitset, bitmap, bit vector) API for numeric types
bit-vector library and test: Simple bit vectors for Haskell
bitvec library, test and benchmark: Space-efficient bit vectors
bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
boolector library and tests: Haskell bindings for the Boolector SMT solver
bv library and program: Bit-vector arithmetic library
bv-little library, test and benchmarks: Efficient little-endian bit vector library
bv-sized library and test: a bitvector datatype that is parameterized by the vector width
hz3 library, program and test: Bindings for the Z3 Theorem Prover
sbv library, tests and benchmarks: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
z3 library, program and test: Bindings for the Z3 Theorem Prover

Bitcoin

bitcoin-hs library and test: Partial implementation of the Bitcoin protocol (as of 2013)
bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
bitcoin-rpc library and test: Library to communicate with the Satoshi Bitcoin daemon
bitx-bitcoin library and tests: A Haskell library for working with the BitX bitcoin exchange.
haskoin library and test: Implementation of the Bitcoin protocol.
haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
haskoin-store-data library and test: Data for Haskoin Store
haskoin-util library and test: Utility functions for the Network.Haskoin project
haskoin-wallet library, programs and test: Implementation of a Bitcoin SPV Wallet with BIP32 and multisig support.
SCRIPTWriter library and program: ESCRIPT: a human friendly language for programming Bitcoin scripts

Bits

bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

Blockchain

blockchain library and test: Generic blockchain implementation.
dfinity-radix-tree library, program and test: A generic data integrity layer.

Book

algebra-driven-design library: Companion library for the book Algebra-Driven Design by Sandy Maguire

Browser

diohsc program: Gemini client
GoogleSuggest library: Interface to Google Suggest API
hbro library and program: Minimal extensible web-browser
hbro-contrib library and program: Third-party extensions to hbro.
manatee-browser library and program: Browser extension for Manatee.
web-browser-in-haskell library: Web Browser In Haskell
webdriver library: a Haskell client for the Selenium WebDriver protocol
webdriver-snoy library and test: a Haskell client for the Selenium WebDriver protocol (deprecated)

BSD

bsd-sysctl library: Access to the BSD sysctl(3) interface

Bsd3

easytensor-vulkan library: Use easytensor with vulkan-api.
haskell-src-exts-sc library and program: Pretty print haskell code with comments
hinfo library, program and test: Command Line App With Info on your Haskell App
HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
tasty-grading-system library and test: Grade your tasty-testsuite.
vulkan-api library: Low-level low-overhead vulkan api bindings

Bsparse

bsparse library: A simple unassuming parser for bytestring

Build

chs-cabal library: Cabal with c2hs dependencies
dependency library, test and benchmark: Dependency resolution for package management
Grow library: A declarative make-like interpreter.
language-ninja library, programs and tests: A library for dealing with the Ninja build language.
neko-lib library and test: Neko VM code generation and disassembly library
shake-ats library: Utilities for building ATS projects with shake
shake-futhark library: Dependency tracking for Futhark
up-grade program: Software management tool

Build Tool

bazel-coverage-report-renderer program: HTML Coverage Reports for Rules_Haskell
bazel-runfiles library and program: Locate Bazel runfiles location
elm-make program: A build tool for Elm projects

Builders

bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder

Building

boilerplate library, program and test: Generate Haskell boilerplate.
ghcflags library: Dump the ghc flags during compilation
hsinspect library and program: Inspect Haskell source files.
hsinspect-lsp library, program and test: LSP interface over the hsinspect binary.
stack2cabal library and program: Convert stack projects to cabal.project + cabal.project.freeze
stackage-to-hackage library and program: Convert stack.yaml to cabal.project + cabal.project.freeze

Bundle

asset-bundle library: A build-time Cabal library that bundles executables with assets
cabal-auto-expose library: Build time library that autodetects exposed modules

Business

bookkeeping library and tests: A module for bookkeeping by double entry.
bookkeeping-jp library and tests: Helper functions for Japanese bookkeeping.
docusign-base library: Low-level bindings to the DocuSign API
docusign-base-minimal library: Low-level bindings to the DocuSign API (only what is necessary for docusign-client)
docusign-client library: Client bindings for the DocuSign API
docusign-example program: DocuSign examples
ochintin-daicho library and tests: A module to manage payroll books for Japanese companies.
work-time library and program: A library for parsing a chat-based work hour reporting scheme.

Bytes

bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

ByteString

bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
bytestring-tree-builder library, test and benchmark: A very efficient ByteString builder implementation based on the binary tree
ListLike library and test: Generalized support for list-like structures
pathological-bytestrings library: Pathological ByteStrings for testing
streamly-bytestring library, test and benchmark: Library for streamly and bytestring interoperation.
stringable library: A Stringable type class, in the spirit of Foldable and Traversable

ByteStrings

base58-bytestring library, test and benchmark: Implementation of BASE58 transcoding for ByteStrings

BZip

bzip-signature library: Backpack signature for BZip compression

C

C-structs library and tests: C-Structs implementation for Haskell
cdeps library, program, test and benchmark: Extract dependencies from C code.
cpkg library, program and test: Build tool for C
gmpint library: GMP integer conversions
shake-c library: Library for building C code with shake
zbar library: zbar bindings in Haskell

Cabal

ats-setup library: ATS scripts for Cabal builds
autopack library: Custom Setup to automate package modules discovery
chs-cabal library: Cabal with c2hs dependencies
policeman library, program and test: Haskell PVP version adviser

Cache

cache library and test: An in-memory key/value store with expiration support
cache-polysemy library and test: cached hashmaps
fcache library and test: Cache a function (a -> b)
rediscaching-haxl library: Combine redis caching and haxl.

Caching

expiring-cache-map library and tests: General purpose simple caching.

CAPTCHA

antigate library: Interface for antigate.com captcha recognition API

Cardano

cardano-coin-selection library and test: Algorithms for coin selection and fee balancing.
cardano-transactions library, program and test: Library utilities for constructing and signing Cardano transactions.

Cast

type-iso library: Typeclasses for injective relations and isomorphisms between types.

CGI

cgi-utils library: Simple modular utilities for CGI/FastCGI (sessions, etc.)

Chaos Music

AlgoRhythm library, program and test: Algorithmic music composition

Charts

chart-svg library, program and test: Charting library targetting SVGs.
chart-unit library and test: Native haskell charts.
Histogram library
plotlyhs library: Haskell bindings to Plotly.js
textPlot library: Plot functions in text.

Chat

matterhorn library, program and test: Terminal client for the Mattermost chat system

Chemistry

ConClusion library and program: Cluster algorithms, PCA, and chemical conformere analysis
hall-symbols library and tests: Symmetry operations generater of Hall Symbols
isotope library and test: Isotopic masses and relative abundances.
matrix-as-xyz library and tests: Read and Display Jones-Faithful notation for spacegroup and planegroup
radium library and test: Chemistry
radium-formula-parser library and test: Chemistry
science-constants library: Mathematical/physical/chemical constants
science-constants-dimensional library: Mathematical/physical/chemical constants
seitz-symbol library and tests: Read and Display Seitz Symbol
symmetry-operations-symbols library and tests: Derivation of symbols and coordinate triplets Library

CHs

chs-deps library, test and benchmark: c2hs dependency analyzer

CI

hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
hercules-ci-cnix-expr library: Bindings for the Nix evaluator
packcheck library, test and benchmark: Universal build and CI testing for Haskell packages

Classification

HasGP library: A Haskell library for inference using Gaussian processes
hslibsvm library: A FFI binding to libsvm.
HSvm library: Haskell Bindings for libsvm
liblinear-enumerator library: liblinear iteratee.

Clckwrks

clckwrks library: A secure, reliable content management system (CMS) and blogging platform
clckwrks-cli library and program: a command-line interface for adminstrating some aspects of clckwrks
clckwrks-dot-com programs: clckwrks.com
clckwrks-plugin-bugs library: bug tracking plugin for clckwrks
clckwrks-plugin-ircbot library: ircbot plugin for clckwrks
clckwrks-plugin-mailinglist library: mailing list plugin for clckwrks
clckwrks-plugin-media library: media plugin for clckwrks
clckwrks-plugin-page library: support for CMS/Blogging in clckwrks
clckwrks-plugin-redirect library and program: support redirects for CMS/Blogging in clckwrks
clckwrks-theme-bootstrap library: simple bootstrap based template for clckwrks
clckwrks-theme-clckwrks library: simple bootstrap based template for clckwrks
clckwrks-theme-geo-bootstrap library: geo bootstrap based template for clckwrks

CLI

bunz library, program and test: CLI tool to beautify JSON string.
cli library and program: CLI
commander-cli library and test: A command line argument/option parser library
dobutok library: Creates the time intervals for CLI changing messages on the screen.
dobutokO library: The library is intended to print updated messages on the terminal screen.
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
ethereum-analyzer-cli library and programs: A CLI frontend for ethereum-analyzer.
file-templates program: Use templates for files and directories
gen-passwd program: Create wordlist-based passwords easily
gli library, program and test: Tiny cli to fetch PR info from gitlab
harg library and tests: Haskell program configuration using higher kinded data
hastily library, program and test: A program to download subtitle files.
herms program: A command-line manager for delicious kitchen recipes
hifi library, program and test: WiFi connection script generator
hinfo library, program and test: Command Line App With Info on your Haskell App
hinit library, program and test: Generic project initialization tool
jot program: Tiny markdown notebook
life-sync library, program and test: Synchronize personal configs across multiple machines.
mit-3qvpPyAi6mH library, program and test: A git wrapper with a streamlined UX
mmark-cli program: Command line interface to the MMark markdown processor
morpheus-graphql-cli program and test: Morpheus GraphQL CLI
optima library and test: Simple command line interface arguments parser
optparse-applicative library and test: Utilities and combinators for parsing command line options
optparse-applicative-simple library and test: Simple command line interface arguments parser
optparse-enum library: An enum-text based toolkit for optparse-applicative
optparse-version library
otp-authenticator library and program: OTP Authenticator (a la google) command line client
pinboard-notes-backup program: Back up the notes you've saved to Pinboard
platinum-parsing library, program and test: General Framework for compiler development.
ploton library, program and test: A useful cli tool to draw figures
rob library, program and test: Simple projects generator
summoner library, program and test: ...
symantic-cli library: Symantics for parsing and documenting a CLI
tldr library, program and test: Haskell tldr client
translate-cli library, program and test: Translation cli tool
trial-optparse-applicative library: Trial helper functions for optparse-applicative
unused library, program and test: A command line tool to identify unused code.
yiyd program and test

CLI Tool

eddie program: Command line file filtering with haskell
git-cuk library and program: Haskell Git Helper Tool
hit-on library, program and test: Haskell Git Helper Tool
life-sync library, program and test: Synchronize personal configs across multiple machines.
summoner library, program and test: ...

Client

approveapi library and test: ApproveAPI Haskell Client
jobqueue library and test: A job queue library
morpheus-graphql-client library and test: Morpheus GraphQL Client
redis-job-queue library: Simple priority job queue backed by Redis.
scidb-hquery library and program: Haskell query for SciDB via shim
stomp-conduit library: Stompl Conduit Client
stomp-patterns library: Stompl MOM Stomp Patterns
stomp-queue library: Stompl Client Library

Closure

static library and tests: Type-safe and interoperable static values and closures

Cloud

amazonka library and test: Comprehensive Amazon Web Services SDK.
amazonka-alexa-business library and test: Amazon Alexa For Business SDK.
amazonka-apigateway library and test: Amazon API Gateway SDK.
amazonka-application-autoscaling library and test: Amazon Application Auto Scaling SDK.
amazonka-appstream library and test: Amazon AppStream SDK.
amazonka-appsync library and test: Amazon AppSync SDK.
amazonka-athena library and test: Amazon Athena SDK.
amazonka-autoscaling library and test: Amazon Auto Scaling SDK.
amazonka-autoscaling-plans library and test: Amazon Auto Scaling Plans SDK.
amazonka-batch library and test: Amazon Batch SDK.
amazonka-budgets library and test: Amazon Budgets SDK.
amazonka-certificatemanager library and test: Amazon Certificate Manager SDK.
amazonka-certificatemanager-pca library and test: Amazon Certificate Manager Private Certificate Authority SDK.
amazonka-cloud9 library and test: Amazon Cloud9 SDK.
amazonka-clouddirectory library and test: Amazon CloudDirectory SDK.
amazonka-cloudformation library and test: Amazon CloudFormation SDK.
amazonka-cloudfront library and test: Amazon CloudFront SDK.
amazonka-cloudhsm library and test: Amazon CloudHSM SDK.
amazonka-cloudhsmv2 library and test: Amazon CloudHSM V2 SDK.
amazonka-cloudsearch library and test: Amazon CloudSearch SDK.
amazonka-cloudsearch-domains library and test: Amazon CloudSearch Domain SDK.
amazonka-cloudtrail library and test: Amazon CloudTrail SDK.
amazonka-cloudwatch library and test: Amazon CloudWatch SDK.
amazonka-cloudwatch-events library and test: Amazon CloudWatch Events SDK.
amazonka-cloudwatch-logs library and test: Amazon CloudWatch Logs SDK.
amazonka-codebuild library and test: Amazon CodeBuild SDK.
amazonka-codecommit library and test: Amazon CodeCommit SDK.
amazonka-codedeploy library and test: Amazon CodeDeploy SDK.
amazonka-codepipeline library and test: Amazon CodePipeline SDK.
amazonka-codestar library and test: Amazon CodeStar SDK.
amazonka-cognito-identity library and test: Amazon Cognito Identity SDK.
amazonka-cognito-idp library and test: Amazon Cognito Identity Provider SDK.
amazonka-cognito-sync library and test: Amazon Cognito Sync SDK.
amazonka-comprehend library and test: Amazon Comprehend SDK.
amazonka-config library and test: Amazon Config SDK.
amazonka-connect library and test: Amazon Connect Service SDK.
amazonka-core library and test: Core data types and functionality for Amazonka libraries.
amazonka-cost-explorer library and test: Amazon Cost Explorer Service SDK.
amazonka-cur library and test: Amazon Cost and Usage Report Service SDK.
amazonka-datapipeline library and test: Amazon Data Pipeline SDK.
amazonka-devicefarm library and test: Amazon Device Farm SDK.
amazonka-directconnect library and test: Amazon Direct Connect SDK.
amazonka-discovery library and test: Amazon Application Discovery Service SDK.
amazonka-dms library and test: Amazon Database Migration Service SDK.
amazonka-ds library and test: Amazon Directory Service SDK.
amazonka-dynamodb library and test: Amazon DynamoDB SDK.
amazonka-dynamodb-dax library and test: Amazon DynamoDB Accelerator (DAX) SDK.
amazonka-dynamodb-streams library and test: Amazon DynamoDB Streams SDK.
amazonka-ec2 library and test: Amazon Elastic Compute Cloud SDK.
amazonka-ecr library and test: Amazon EC2 Container Registry SDK.
amazonka-ecs library and test: Amazon EC2 Container Service SDK.
amazonka-efs library and test: Amazon Elastic File System SDK.
amazonka-elasticache library and test: Amazon ElastiCache SDK.
amazonka-elasticbeanstalk library and test: Amazon Elastic Beanstalk SDK.
amazonka-elasticsearch library and test: Amazon Elasticsearch Service SDK.
amazonka-elastictranscoder library and test: Amazon Elastic Transcoder SDK.
amazonka-elb library and test: Amazon Elastic Load Balancing SDK.
amazonka-elbv2 library and test: Amazon Elastic Load Balancing SDK.
amazonka-emr library and test: Amazon Elastic MapReduce SDK.
amazonka-fms library and test: Amazon Firewall Management Service SDK.
amazonka-gamelift library and test: Amazon GameLift SDK.
amazonka-glacier library and test: Amazon Glacier SDK.
amazonka-glue library and test: Amazon Glue SDK.
amazonka-greengrass library and test: Amazon Greengrass SDK.
amazonka-guardduty library and test: Amazon GuardDuty SDK.
amazonka-health library and test: Amazon Health APIs and Notifications SDK.
amazonka-iam library and test: Amazon Identity and Access Management SDK.
amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
amazonka-importexport library and test: Amazon Import/Export SDK.
amazonka-inspector library and test: Amazon Inspector SDK.
amazonka-iot library and test: Amazon IoT SDK.
amazonka-iot-analytics library and test: Amazon IoT Analytics SDK.
amazonka-iot-dataplane library and test: Amazon IoT Data Plane SDK.
amazonka-iot-jobs-dataplane library and test: Amazon IoT Jobs Data Plane SDK.
amazonka-kinesis library and test: Amazon Kinesis SDK.
amazonka-kinesis-analytics library and test: Amazon Kinesis Analytics SDK.
amazonka-kinesis-firehose library and test: Amazon Kinesis Firehose SDK.
amazonka-kinesis-video library and test: Amazon Kinesis Video Streams SDK.
amazonka-kinesis-video-archived-media library and test: Amazon Kinesis Video Streams Archived Media SDK.
amazonka-kinesis-video-media library and test: Amazon Kinesis Video Streams Media SDK.
amazonka-kms library and test: Amazon Key Management Service SDK.
amazonka-lambda library and test: Amazon Lambda SDK.
amazonka-lex-models library and test: Amazon Lex Model Building Service SDK.
amazonka-lex-runtime library and test: Amazon Lex Runtime Service SDK.
amazonka-lightsail library and test: Amazon Lightsail SDK.
amazonka-marketplace-analytics library and test: Amazon Marketplace Commerce Analytics SDK.
amazonka-marketplace-entitlement library and test: Amazon Marketplace Entitlement Service SDK.
amazonka-marketplace-metering library and test: Amazon Marketplace Metering SDK.
amazonka-mechanicalturk library and test: Amazon Mechanical Turk SDK.
amazonka-mediaconvert library and test: Amazon Elemental MediaConvert SDK.
amazonka-medialive library and test: Amazon Elemental MediaLive SDK.
amazonka-mediapackage library and test: Amazon Elemental MediaPackage SDK.
amazonka-mediastore library and test: Amazon Elemental MediaStore SDK.
amazonka-mediastore-dataplane library and test: Amazon Elemental MediaStore Data Plane SDK.
amazonka-migrationhub library and test: Amazon Migration Hub SDK.
amazonka-ml library and test: Amazon Machine Learning SDK.
amazonka-mobile library and test: Amazon Mobile SDK.
amazonka-mq library and test: Amazon MQ SDK.
amazonka-opsworks library and test: Amazon OpsWorks SDK.
amazonka-opsworks-cm library and test: Amazon OpsWorks for Chef Automate SDK.
amazonka-organizations library and test: Amazon Organizations SDK.
amazonka-pinpoint library and test: Amazon Pinpoint SDK.
amazonka-polly library and test: Amazon Polly SDK.
amazonka-pricing library and test: Amazon Price List Service SDK.
amazonka-rds library and test: Amazon Relational Database Service SDK.
amazonka-redshift library and test: Amazon Redshift SDK.
amazonka-rekognition library and test: Amazon Rekognition SDK.
amazonka-resourcegroups library and test: Amazon Resource Groups SDK.
amazonka-resourcegroupstagging library and test: Amazon Resource Groups Tagging API SDK.
amazonka-route53 library and test: Amazon Route 53 SDK.
amazonka-route53-autonaming library and test: Amazon Route 53 Auto Naming SDK.
amazonka-route53-domains library and test: Amazon Route 53 Domains SDK.
amazonka-s3 library and test: Amazon Simple Storage Service SDK.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
amazonka-sagemaker library and test: Amazon SageMaker Service SDK.
amazonka-sagemaker-runtime library and test: Amazon SageMaker Runtime SDK.
amazonka-sdb library and test: Amazon SimpleDB SDK.
amazonka-secretsmanager library and test: Amazon Secrets Manager SDK.
amazonka-serverlessrepo library and test: Amazon ServerlessApplicationRepository SDK.
amazonka-servicecatalog library and test: Amazon Service Catalog SDK.
amazonka-ses library and test: Amazon Simple Email Service SDK.
amazonka-shield library and test: Amazon Shield SDK.
amazonka-sms library and test: Amazon Server Migration Service SDK.
amazonka-snowball library and test: Amazon Import/Export Snowball SDK.
amazonka-sns library and test: Amazon Simple Notification Service SDK.
amazonka-sqs library and test: Amazon Simple Queue Service SDK.
amazonka-ssm library and test: Amazon Simple Systems Manager (SSM) SDK.
amazonka-stepfunctions library and test: Amazon Step Functions SDK.
amazonka-storagegateway library and test: Amazon Storage Gateway SDK.
amazonka-sts library and test: Amazon Security Token Service SDK.
amazonka-support library and test: Amazon Support SDK.
amazonka-swf library and test: Amazon Simple Workflow Service SDK.
amazonka-test library: Common functionality for Amazonka library test-suites.
amazonka-transcribe library and test: Amazon Transcribe Service SDK.
amazonka-translate library and test: Amazon Translate SDK.
amazonka-waf library and test: Amazon WAF SDK.
amazonka-waf-regional library and test: Amazon WAF Regional SDK.
amazonka-workdocs library and test: Amazon WorkDocs SDK.
amazonka-workmail library and test: Amazon WorkMail SDK.
amazonka-workspaces library and test: Amazon WorkSpaces SDK.
amazonka-xray library and test: Amazon X-Ray SDK.
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-arn library and test: Types and optics for manipulating Amazon Resource Names (ARNs)
aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-configuration-tools library: Configuration types, parsers & renderers for AWS services
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-kinesis-client library and program: A producer & consumer client library for AWS Kinesis
aws-kinesis-reshard library and program: Reshard AWS Kinesis streams in response to Cloud Watch metrics
aws-lambda library: Haskell bindings for AWS Lambda
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-sdk library and test: AWS SDK for Haskell
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
azure-functions-worker library and test: Azure Functions Worker
backblaze-b2-hs library, program and test: A client library to access Backblaze B2 cloud storage in Haskell.
cloud-seeder library and test: A tool for interacting with AWS CloudFormation
firebase-database library, test and benchmark: Google Firebase Database SDK
gogol library: Comprehensive Google Services SDK.
gogol-abusiveexperiencereport library: Google Abusive Experience Report SDK.
gogol-acceleratedmobilepageurl library: Google Accelerated Mobile Pages (AMP) URL SDK.
gogol-accessapproval library: Google Access Approval SDK.
gogol-accesscontextmanager library: Google Access Context Manager SDK.
gogol-adexchange-buyer library: Google Ad Exchange Buyer SDK.
gogol-adexchange-seller library: Google Ad Exchange Seller SDK.
gogol-adexchangebuyer2 library: Google Ad Exchange Buyer API II SDK.
gogol-adexperiencereport library: Google Ad Experience Report SDK.
gogol-admin-datatransfer library: Google Admin Data Transfer SDK.
gogol-admin-directory library: Google Admin Directory SDK.
gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
gogol-admin-reports library: Google Admin Reports SDK.
gogol-adsense library: Google AdSense Management SDK.
gogol-adsense-host library: Google AdSense Host SDK.
gogol-affiliates library: Google Affiliate Network SDK.
gogol-alertcenter library: Google G Suite Alert Center SDK.
gogol-analytics library: Google Analytics SDK.
gogol-analyticsreporting library: Google Analytics Reporting SDK.
gogol-android-enterprise library: Google Play EMM SDK.
gogol-android-publisher library: Google Play Developer SDK.
gogol-androiddeviceprovisioning library: Google Android Device Provisioning Partner SDK.
gogol-androidmanagement library: Google Android Management SDK.
gogol-appengine library: Google App Engine Admin SDK.
gogol-apps-activity library: Google Drive Activity SDK.
gogol-apps-calendar library: Google Calendar SDK.
gogol-apps-licensing library: Google Enterprise License Manager SDK.
gogol-apps-reseller library: Google Enterprise Apps Reseller SDK.
gogol-apps-tasks library: Google Tasks SDK.
gogol-appstate library: Google App State SDK.
gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
gogol-bigquery library: Google BigQuery SDK.
gogol-bigquerydatatransfer library: Google BigQuery Data Transfer SDK.
gogol-bigtableadmin library: Google Cloud Bigtable Admin SDK.
gogol-billing library: Google Cloud Billing SDK.
gogol-binaryauthorization library: Google Binary Authorization SDK.
gogol-blogger library: Google Blogger SDK.
gogol-books library: Google Books SDK.
gogol-chat library: Google Hangouts Chat SDK.
gogol-civicinfo library: Google Civic Information SDK.
gogol-classroom library: Google Classroom SDK.
gogol-cloudasset library: Google Cloud Asset SDK.
gogol-clouderrorreporting library: Google Stackdriver Error Reporting SDK.
gogol-cloudfunctions library: Google Cloud Functions SDK.
gogol-cloudidentity library: Google Cloud Identity SDK.
gogol-cloudiot library: Google Cloud IoT SDK.
gogol-cloudkms library: Google Cloud Key Management Service (KMS) SDK.
gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
gogol-cloudprivatecatalog library: Google Cloud Private Catalog SDK.
gogol-cloudprivatecatalogproducer library: Google Cloud Private Catalog Producer SDK.
gogol-cloudprofiler library: Google Stackdriver Profiler SDK.
gogol-cloudscheduler library: Google Cloud Scheduler SDK.
gogol-cloudsearch library: Google Cloud Search SDK.
gogol-cloudshell library: Google Cloud Shell SDK.
gogol-cloudtasks library: Google Cloud Tasks SDK.
gogol-cloudtrace library: Google Stackdriver Trace SDK.
gogol-commentanalyzer library: Google Perspective Comment Analyzer SDK.
gogol-composer library: Google Cloud Composer SDK.
gogol-compute library: Google Compute Engine SDK.
gogol-consumersurveys library: Google Consumer Surveys SDK.
gogol-container library: Google Kubernetes Engine SDK.
gogol-containeranalysis library: Google Container Analysis SDK.
gogol-containerbuilder library: Google Cloud Build SDK.
gogol-core library and test: Core data types and functionality for Gogol libraries.
gogol-customsearch library: Google CustomSearch SDK.
gogol-dataflow library: Google Dataflow SDK.
gogol-datafusion library: Google Cloud Data Fusion SDK.
gogol-dataproc library: Google Cloud Dataproc SDK.
gogol-datastore library: Google Cloud Datastore SDK.
gogol-debugger library: Google Stackdriver Debugger SDK.
gogol-deploymentmanager library: Google Cloud Deployment Manager SDK.
gogol-dfareporting library: Google DCM/DFA Reporting And Trafficking SDK.
gogol-dialogflow library: Google Dialogflow SDK.
gogol-digitalassetlinks library: Google Digital Asset Links SDK.
gogol-discovery library: Google API Discovery Service SDK.
gogol-dlp library: Google Cloud Data Loss Prevention (DLP) SDK.
gogol-dns library: Google Cloud DNS SDK.
gogol-docs library: Google Docs SDK.
gogol-doubleclick-bids library: Google DoubleClick Bid Manager SDK.
gogol-doubleclick-search library: Google DoubleClick Search SDK.
gogol-drive library: Google Drive SDK.
gogol-driveactivity library: Google Drive Activity SDK.
gogol-factchecktools library: Google Fact Check Tools SDK.
gogol-file library: Google Cloud Filestore SDK.
gogol-firebase-dynamiclinks library: Google Firebase Dynamic Links SDK.
gogol-firebase-rules library: Google Firebase Rules SDK.
gogol-firebasehosting library: Google Firebase Hosting SDK.
gogol-firebaseremoteconfig library: Google Firebase Remote Config SDK.
gogol-firestore library: Google Cloud Firestore SDK.
gogol-fitness library: Google Fitness SDK.
gogol-fonts library: Google Fonts Developer SDK.
gogol-freebasesearch library: Google Freebase Search SDK.
gogol-fusiontables library: Google Fusion Tables SDK.
gogol-games library: Google Play Game Services SDK.
gogol-games-configuration library: Google Play Game Services Publishing SDK.
gogol-games-management library: Google Play Game Services Management SDK.
gogol-genomics library: Google Genomics SDK.
gogol-gmail library: Google Gmail SDK.
gogol-groups-migration library: Google Groups Migration SDK.
gogol-groups-settings library: Google Groups Settings SDK.
gogol-healthcare library: Google Cloud Healthcare SDK.
gogol-iam library: Google Identity and Access Management (IAM) SDK.
gogol-iamcredentials library: Google IAM Service Account Credentials SDK.
gogol-iap library: Google Cloud Identity-Aware Proxy SDK.
gogol-identity-toolkit library: Google Identity Toolkit SDK.
gogol-indexing library: Google Indexing SDK.
gogol-jobs library: Google Cloud Talent Solution SDK.
gogol-kgsearch library: Google Knowledge Graph Search SDK.
gogol-language library: Google Cloud Natural Language SDK.
gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
gogol-libraryagent library: Google Library Agent SDK.
gogol-logging library: Google Stackdriver Logging SDK.
gogol-manufacturers library: Google Manufacturer Center SDK.
gogol-maps-coordinate library: Google Maps Coordinate SDK.
gogol-maps-engine library: Google Maps Engine SDK.
gogol-mirror library: Google Mirror SDK.
gogol-ml library: Google Cloud Machine Learning Engine SDK.
gogol-monitoring library: Google Stackdriver Monitoring SDK.
gogol-oauth2 library: Google OAuth2 SDK.
gogol-oslogin library: Google Cloud OS Login SDK.
gogol-pagespeed library: Google PageSpeed Insights SDK.
gogol-partners library: Google Partners SDK.
gogol-people library: Google People SDK.
gogol-photoslibrary library: Google Photos Library SDK.
gogol-play-moviespartner library: Google Play Movies Partner SDK.
gogol-playcustomapp library: Google Play Custom App Publishing SDK.
gogol-plus library: Google + SDK.
gogol-plus-domains library: Google + Domains SDK.
gogol-poly library: Google Poly SDK.
gogol-prediction library: Google Prediction SDK.
gogol-proximitybeacon library: Google Proximity Beacon SDK.
gogol-pubsub library: Google Cloud Pub/Sub SDK.
gogol-qpxexpress library: Google QPX Express SDK.
gogol-redis library: Google Cloud Memorystore for Redis SDK.
gogol-remotebuildexecution library: Google Remote Build Execution SDK.
gogol-replicapool library: Google Replica Pool SDK.
gogol-replicapool-updater library: Google Compute Engine Instance Group Updater SDK.
gogol-resourcemanager library: Google Cloud Resource Manager SDK.
gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
gogol-run library: Google Cloud Run SDK.
gogol-runtimeconfig library: Google Cloud Runtime Configuration SDK.
gogol-safebrowsing library: Google Safe Browsing SDK.
gogol-script library: Google Apps Script SDK.
gogol-searchconsole library: Google Search Console URL Testing Tools SDK.
gogol-securitycenter library: Google Cloud Security Command Center SDK.
gogol-servicebroker library: Google Service Broker SDK.
gogol-serviceconsumermanagement library: Google Service Consumer Management SDK.
gogol-servicecontrol library: Google Service Control SDK.
gogol-servicemanagement library: Google Service Management SDK.
gogol-servicenetworking library: Google Service Networking SDK.
gogol-serviceusage library: Google Service Usage SDK.
gogol-serviceuser library: Google Service User SDK.
gogol-sheets library: Google Sheets SDK.
gogol-shopping-content library: Google Content API for Shopping SDK.
gogol-siteverification library: Google Site Verification SDK.
gogol-slides library: Google Slides SDK.
gogol-sourcerepo library: Google Cloud Source Repositories SDK.
gogol-spanner library: Google Cloud Spanner SDK.
gogol-spectrum library: Google Spectrum Database SDK.
gogol-speech library: Google Cloud Speech-to-Text SDK.
gogol-sqladmin library: Google Cloud SQL Admin SDK.
gogol-storage library: Google Cloud Storage JSON SDK.
gogol-storage-transfer library: Google Storage Transfer SDK.
gogol-streetviewpublish library: Google Street View Publish SDK.
gogol-surveys library: Google Surveys SDK.
gogol-tagmanager library: Google Tag Manager SDK.
gogol-taskqueue library: Google TaskQueue SDK.
gogol-testing library: Google Cloud Testing SDK.
gogol-texttospeech library: Google Cloud Text-to-Speech SDK.
gogol-toolresults library: Google Cloud Tool Results SDK.
gogol-tpu library: Google Cloud TPU SDK.
gogol-tracing library: Google Tracing SDK.
gogol-translate library: Google Cloud Translation SDK.
gogol-urlshortener library: Google URL Shortener SDK.
gogol-useraccounts library: Google Cloud User Accounts SDK.
gogol-vault library: Google G Suite Vault SDK.
gogol-videointelligence library: Google Cloud Video Intelligence SDK.
gogol-vision library: Google Cloud Vision SDK.
gogol-webmaster-tools library: Google Search Console SDK.
gogol-websecurityscanner library: Google Web Security Scanner SDK.
gogol-youtube library: Google YouTube Data SDK.
gogol-youtube-analytics library: Google YouTube Analytics SDK.
gogol-youtube-reporting library: Google YouTube Reporting SDK.
groot library, program and test: Command line utility to manage AWS ECS resources
hadoop-streaming library and test: A simple Hadoop streaming library
hdo library and program: A Digital Ocean client in Haskell
kerry library and test: Manage and abstract your packer configurations.
linode library and test: Bindings to the Linode API
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
micro-gateway library and program: A Micro service gateway.
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
pubnub library, programs and test: PubNub Haskell SDK
push-notify library: A server-side library for sending push notifications.
push-notify-apn library, program and test: Send push notifications to mobile iOS devices
push-notify-ccs library: ...
push-notify-general library: A general library for sending/receiving push notif. through dif. services.
serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
stratosphere library, programs and test: EDSL for AWS CloudFormation
wai-handler-hal library: Wrap WAI applications to run on AWS Lambda
wolf library and programs: Amazon Simple Workflow Service Wrapper.

Cloud Haskell

distributed-process-lifted library and test: monad-control style typeclass and transformer instances for Process monad.
distributed-process-systest library: Cloud Haskell Test Support
distributed-process-task library and test: Task Framework for The Cloud Haskell Application Platform
distributed-process-tests library and tests: Tests and test support tools for distributed-process.
distributed-process-zookeeper library, program and test: A Zookeeper back-end for Cloud Haskell.

CLR

clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug

Clustering

gsc-weighting library: Generic implementation of Gerstein/Sonnhammer/Chothia weighting.
hieraclus library: Automated clustering of arbitrary elements in Haskell.
hierarchical-clustering library and test: Fast algorithms for single, average/UPGMA and complete linkage clustering.
hierarchical-clustering-diagrams library and test: Draw diagrams of dendrograms made by hierarchical-clustering.
hps-kmeans library: A nice implementation of the k-Means algorithm.
hsgsom library: An implementation of the GSOM clustering algorithm.
kmeans library: K-means clustering algorithm

Code Competitions

competition library: Helpers and runners for code competitions

Code Generation

bond library, program and test: Bond schema compiler and code generator
dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
elminator library and test: Generate ELM types/encoders/decoders from Haskell types.
flexible-defaults library: Generate default function implementations for complex type classes.
harpy library: Runtime code generation for x86 machine code
haskell-generate library and test: Typesafe generation of haskell source code
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hburg program: Haskell Bottom Up Rewrite Generator
llvm library: Bindings to the LLVM compiler toolkit.
llvm-base library: FFI bindings to the LLVM compiler toolkit.
llvm-base-util library: Utilities for bindings to the LLVM compiler toolkit.
llvm-dsl library: Support for writing an EDSL with LLVM-JIT as target
llvm-extension library and program: Processor specific intrinsics for the llvm interface
llvm-extra library, program and test: Utility functions for the llvm interface
llvm-ffi library and programs: FFI bindings to the LLVM compiler toolkit.
llvm-ffi-tools programs: Tools for maintaining the llvm-ffi package
llvm-general library and test: General purpose LLVM bindings
llvm-general-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-general-quote library and test: QuasiQuoting llvm code for llvm-general
llvm-hs library and test: General purpose LLVM bindings
llvm-hs-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-ht library: Bindings to the LLVM compiler toolkit with some custom extensions.
llvm-pkg-config program: Generate Pkg-Config configuration file for LLVM
llvm-tf library, programs and test: Bindings to the LLVM compiler toolkit using type families.
morloc library, program and test: A multi-lingual, typed, workflow language
passage library: Parallel code generation for hierarchical Bayesian modeling.
preprocessor-tools library: A framework for extending Haskell's syntax via quick-and-dirty preprocessors
servant-serf library and program: Generates a servant API module
sugarhaskell programs: Library-based syntactic extensibility for Haskell
x86-64bit library and test: Runtime code generation for x86 64 bit machine code

Code-Generator

openapi3-code-generator library, program and test: OpenAPI3 Haskell Client Code Generator

Codec

AC-PPM library: Trivial package for writing PPM images.
activitystreams-aeson library: An interface to the ActivityStreams specification
archive-libarchive library: Common interface using libarchive
archive-sig library: Backpack signature for archive libraries
archive-tar library: Common interface using the tar package
archive-tar-bytestring library: Common interface using the tar-bytestring package
automitive-cse library and test: Automotive CSE emulation
automotive-cse library and test: Automotive CSE emulation
base-encoding library: Binary-to-text encodings (e.g. base64)
base32-bytestring library, test and benchmark: Fast base32 and base32hex codec for ByteStrings
base32-z-bytestring library, test and benchmark: Fast z-base32 and z-base32hex codec for ByteStrings
base64-string library: Base64 implementation for String's.
base91 library, program and test: A Generic Base91 Encoder & Decoder
bgzf library: Blocked GZip
bidirectional library and test: Simple bidirectional serialization and deserialization
binary-serialise-cbor library: Yet Another Binary Serialisation Library (compatibility shim)
bindings-codec2 library and program: Very low-level FFI bindings for Codec2
bitmaps library: Bitmap library
bmp library: Read and write uncompressed BMP image files.
bottom library, program, test and benchmark: Encoding and decoding for the Bottom spec.
brotli library and test: Brotli (RFC7932) compression and decompression
brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
bytable library: data from/to ByteString
bzlib library: Compression and decompression in the bzip2 format
bzlib-conduit library, test and benchmark: Streaming compression/decompression via conduits.
candid library, program and tests: Candid integration
cbor-tool program: A tool for manipulating CBOR.
cborg library and test: Concise Binary Object Representation (CBOR)
cborg-json library and benchmark: A library for encoding JSON as CBOR
chunky library, program and test: Human-readable storage of text/binary objects.
cityhash library and test: Bindings to CityHash
codec-beam library and test: Erlang VM byte code assembler
Codec-Compression-LZF library: LZF compression bindings.
codec-mbox library: A library to read and write mailboxes in mbox format
compression library: Common compression algorithms.
crockford library: An implementation of Douglas Crockford's base32 encoding.
Crypto library and programs: Collects together existing Haskell cryptographic functions into a package
cryptostore library and test: Serialization of cryptographic data types
dataenc library and program: Data encoding library
deunicode program: Get rid of unicode (utf-8) symbols in Haskell sources
DSA library and test: Implementation of DSA, based on the description of FIPS 186-4
dvorak library and test: Dvorak encoding for Haskell.
edf library: EDF parsing library
embroidery library and program: support for embroidery formats in haskell
Encode library and programs: Encoding character data
encoding library and test: A library for various character encodings
epub-metadata library, program and test: Library for parsing epub document metadata
exomizer library: Compression and decompression in the exomizer format
fec library: Forward error correction of ByteStrings
ffmpeg-light library and programs: Minimal bindings to the FFmpeg library.
file-collection library: Provide a uniform interface over file archives and directories
flac library and test: Complete high-level binding to libFLAC
flac-picture library and test: Support for writing picture to FLAC metadata blocks with JuicyPixels
fountain library: A fountain codec.
friday-juicypixels library and test: Converts between the Friday and JuicyPixels image types
gnuidn library and test: Bindings for GNU IDN
goat library and test: Time Series Compression
gray-code library and test: Gray code encoder/decoder.
hascar library, program and test: Decompress SAPCAR archives
hcobs library, tests and benchmark: An implementation of the Consistent Overhead Byte Stuffing algorithm
HCodecs library and test: A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files.
hecc library: Elliptic Curve Cryptography for Haskell
hogg library and programs: Library and tools to manipulate the Ogg container format
hOpenPGP library, test and benchmark: native Haskell implementation of OpenPGP (RFC4880)
hopenpgp-tools programs: hOpenPGP-based command-line tools
hopfli library and test: Bidings to Google's Zopfli compression library
hs-zstd library, test and benchmark: Haskell bindings to the Zstandard compression algorithm
hstar program: Haskell version of tar CLI utility
HsYAML-aeson library: JSON to YAML Adapter
htar program: Command-line tar archive utility.
hw-tar library, program and test: Library for creating and extracting tar archives
iff library: Constructing and dissecting IFF files
isobmff library, test and benchmark: A parser and generator for the ISO-14496-12/14 base media file format
isobmff-builder library, test and benchmark: A (bytestring-) builder for the ISO-14496-12 base media file format
iteratee-compress library: Enumeratees for compressing and decompressing streams
json-directory library and program: Load JSON from files in a directory structure
json-encoder library: A direct-to-bytes single-pass JSON encoder with a declarative DSL
jsop library and test: Cherry picking in JSON objects
JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
lame library and test: Fairly complete high-level binding to LAME encoder
leb128 library, test and benchmark: LEB128 encoding logic for and in Haskell
leb128-cereal library and tests: LEB128 and SLEB128 encoding
libarchive test and benchmarks: Haskell interface to libarchive
libarchive-conduit library: Read many archive formats with libarchive and conduit
libvorbis library: Haskell binding for libvorbis, for decoding Ogg Vorbis audio files
LibZip library and test: Bindings to libzip, a library for manipulating zip archives.
list-t-text library and test: A streaming text codec
logic-TPTP library, programs and test: Import, export etc. for TPTP, a syntax for first-order logic
lz4 library, test and benchmark: LZ4 compression for ByteStrings
lz4-conduit library, program and test: LZ4 compression for conduits
lz4-hs library, test and benchmarks: lz4 bindings for Haskell
lzip library: Lzip compression / Lzlib bindings
lzlib library, test and benchmarks: lzlib bindings
lzma library and test: LZMA/XZ compression and decompression
lzma-clib : liblzma C library and headers for use by LZMA bindings
lzma-conduit library and test: Conduit interface for lzma/xz compression.
lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
lzma-static test: LZMA/XZ compression and decompression (static)
lzma-streams library and test: IO-Streams interface for lzma/xz compression
lzo library, test and benchmark: minilzo bundled for Haskell
mime library: Working with MIME types.
mime-string library: MIME implementation for String's.
mp3decoder program: MP3 decoder for teaching.
mpg123-bindings library: Mpg132 bindings
mucipher library: A library to produce simple ciphers for use with lambdabot.
multihash-serialise library and test: CBOR encoding of multihashes
multipath library: Parser and builder for unix-path-like objects.
nano-hmac library: Bindings to OpenSSL HMAC.
nano-md5 library: Efficient, ByteString bindings to OpenSSL.
netpbm library, test and benchmark: Loading PBM, PGM, PPM image files
omnicodec programs: Data encoding and decoding command line utilities
openpgp-asciiarmor library, test and benchmark: OpenPGP (RFC4880) ASCII Armor codec
pipes-bgzf library: Blocked GZip
pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
pipes-bzip library, test and benchmark: Streaming compression/decompression via pipes.
pipes-illumina library: Illumina NGS data processing
pipes-lzma library, program and test: LZMA compressors and decompressors for the Pipes package
ppm library: a tiny PPM image generator
proto3-suite library, programs and test: A low level library for writing out data in the Protocol Buffers wire format
proto3-wire library and test: A low-level implementation of the Protocol Buffers (version 3) wire format
pure-zlib library, program, test and benchmark: A Haskell-only implementation of zlib / DEFLATE
qrcode library: QR Code library in pure Haskell
qrcode-core library: QR code library in pure Haskell
quicklz library and test: QuickLZ compression for ByteStrings
raaz library, program, tests and benchmarks: The raaz cryptographic library.
rlglue library and programs: A Haskell codec for RL-Glue.
rot13 library and test: Fast ROT13 cipher for Haskell.
RSA library and test: Implementation of RSA, using the padding schemes of PKCS#1 v2.1.
sandi library, test and benchmark: Data encoding library
serialise library, test and benchmarks: A binary serialisation library for Haskell values.
sexpr library and program: S-expression printer and parser
SHA library, programs and test: Implementations of the SHA suite of message digest functions
shannon-fano library, program and test: Shannon-fano compression algorithm in Haskell
simple-tar library: Simple, pure, file-system-free reading of tar files
snappy library and test: Bindings to the Google Snappy library for fast compression/decompression
snappy-conduit library: Conduit bindings for Snappy (see snappy package)
snappy-framing library: Snappy Framing Format in Haskell
snappy-iteratee library: An enumeratee that uses Google's snappy compression library.
snappy-lazy library: Lazy bytestring compression and decompression
sndfile-enumerators library: Audio file reading/writing
snow-white library: encode any binary instance to white space
stb-image library: A wrapper around Sean Barrett's JPEG/PNG decoder
streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
streaming-lzma library and test: Streaming interface for LZMA/XZ compression
streaming-png library and program: Perfectly streaming PNG image decoding
streamly-archive library and test: Stream data from archives using the streamly library.
strict-containers-serialise library: Strict containers - Serialise instances
tar library, test and benchmark: Reading, writing and manipulating ".tar" archive files.
tar-bytestring test and benchmark: Reading, writing and manipulating ".tar" archive files.
text-locale-encoding library: Encode and decode Text to/from ByteString using TextEncoding
threefish library: The Threefish block cipher and the Skein hash function for Haskell.
Twofish library and test: An implementation of the Twofish Symmetric-key cipher.
uconv library: String encoding conversion with ICU
ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
utf8-conversions library and test: A string conversion library that assumes utf8
utf8-light library: Unicode
utf8-string library and test: Support for reading and writing UTF8 Strings
utf8-validator library, test and benchmark: Constant-space UTF8 validator for ByteStrings
vivid-osc library and test: Open Sound Control encode/decode
wave library and test: Work with WAVE and RF64 files
wavefront library: Wavefront OBJ loader
webp library and test: JuicyPixels support for WebP format
winery library, program, test and benchmark: A compact, well-typed seralisation format for Haskell values
xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)
xlsior library and test: Streaming Excel file generation and parsing
xlsx library, test and benchmark: Simple and incomplete Excel file parser/writer
xlsx-tabular library and test: Xlsx table cell value extraction utility
xlsx-templater library and program: Simple and incomplete Excel file templater
xor library, test and benchmark: Efficient XOR masking
yajl library: Bindings for YAJL, an event-based JSON implementation
zim-parser library and test: Read and parse ZIM files
zip library, program and test: Operations on zip archives
zip-archive library, program and test: Library for creating and modifying zip archives.
zip-conduit library, test and benchmark: Working with zip archives via conduits.
zip-stream library and programs: ZIP archive streaming using conduits
zlib library and test: Compression and decompression in the gzip and zlib formats
zlib-bindings library and test: Low-level bindings to the zlib package.
zlib-enum program: Enumerator interface for zlib compression
zlib-lens library: Lenses for zlib
zstd library, test and benchmark: Haskell bindings to the Zstandard compression algorithm
ztar library and tests: Creating and extracting arbitrary archives

Codecs

Codec-Image-DevIL library: An FFI interface to the DevIL library
HSoundFile library: Audio file reading/writing
html-entities library: A codec library for HTML-escaped text and HTML-entities
json-bytes-builder library, test and benchmark: Direct-to-bytes JSON Builder
pngload library: Pure Haskell loader for PNG images
pngload-fixed library: Pure Haskell loader for PNG images
postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
url-decoders library, test and benchmarks: Decoders for URL-encoding (aka Percent-encoding)

Codegen

shwifty library: Generate swift types from haskell types.
tdlib-gen library, program and test: Codegen for TDLib

CodeQuality

source-constraints library and test: Source constraints GHC plugin

Coerce

safe-coerce library: A friendly shorthand for an old friend

Combinatorics

fast-arithmetic library, test and benchmark: Fast functions on integers.
matroid library and test: matroid (combinatorial pre-geometries) library

Combinators

data-aviary library: Combinator birds.
data-emoticons library: Combinator emoticons: data-aviary in the flavor of emoticons
DeepArrow library: Arrows for "deep application"
flow library and test: Write more understandable Haskell.
flow-er library and test: More directional operators
functional-arrow library: Combinators that allow for a more functional/monadic style of Arrow programming
JSON-Combinator library: A combinator library on top of a generalised JSON type
JSON-Combinator-Examples library: Example uses of the JSON-Combinator library.
MapWith library, tests and benchmarks: mapWith: like fmap, but with additional parameters (isFirst, isLast, etc).
op library and test: Common operators encouraging large-scale easy reading
overhang library: Hang loose with your lambdas!
pattern-arrows library: Arrows for Pretty Printing
pointless-fun library: Some common point-free combinators.
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
predicates library: A couple of convenience functions for forming predicates.
prelude-extras library: Higher order versions of Prelude classes
reader-soup library: Vinyl-based reader-like monad composition
reverse-apply library: Standard version of the reverse apply operator.
scc library, program and test: Streaming component combinators
sec library: Semantic Editor Combinators.
syb-extras library: Higher order versions of the Scrap Your Boilerplate classes

Command Line

cli-extras library: Miscellaneous utilities for building and working with command line interfaces
dmc library and test: cmd for common cases
gamgee library, program and test: Tool for generating TOTP MFA tokens.
Hish library and program
hnormalise library, programs, test and benchmark: Log message normalisation tool producing structured JSON messages
optima-for-hasql library: Command-line arguments parsing for Hasql
oset library, program and test: An insertion-order-preserving set
ReadArgs library, program and test: Simple command line argument parsing
req-oauth2 library, program and test: Provides OAuth2 authentication for use with Req
sexpr-parser library, program and test: Simple s-expression parser
shellmet library, program and test: Out of the shell solution for scripting in Haskell

Command Line Tool

catnplus program: Simple tool to display text files with line numbers and paging
herms program: A command-line manager for delicious kitchen recipes
hidden-char library and test: Provides cross-platform getHiddenChar function
update-repos library, program and test: Update all your git repositories with just one command.

Command Line Tools

brok library, program and test: Finds broken links in text files
cli-setup library: Helper setup scripts for packaging command-line tools.
cmt library, program and test: Write consistent git commit messages
confetti library, program and test: A simple config file swapping tool
taskell library, program and test: A command-line kanban board/task manager

CommandLine

calenderweek program: Commandline tool to get week of the year
pandoc-sidenote library and program: Convert Pandoc Markdown-style footnotes into sidenotes
perceptual-hash library, program, test and benchmark: Find duplicate images
sak program: Compression command-line tool

Commerce

turni program: shifts scheduling tool

Commercial

snowflake-core library and test: twitter's snowflake
snowflake-server program: snowflake http server

Common-Parts

handle-like library: HandleLike class

Comonad

co-log library, programs and test: Composable Contravariant Comonadic Logging Library
co-log-concurrent library: Asynchronous backend for co-log library
co-log-core library and test: Composable Contravariant Comonadic Logging Library
co-log-polysemy program: Composable Contravariant Comonadic Logging Library

Comonads

category-extras library: A meta-package documenting various packages inspired by category theory
comonad library: Comonads
comonad-extras library: Exotic comonad transformers
comonad-transformers library: This package has been merged into comonad 4.0
comonads-fd library: This package has been merged into comonad 4.0
data-lens library: Used to be Haskell 98 Lenses
data-lens-fd library: Lenses
data-lens-ixset library and test: A Lens for IxSet
folds library: Beautiful Folding
graphted library: Graph indexed monads.
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
partial-lens library: Haskell 98 Partial Lenses
representable-tries library: Tries from representations of polynomial functors
rivers library: Rivers are like Streams, but different.
semigroupoids library: Semigroupoids: Category sans id
streams library: Various Haskell 2010 stream comonads
zipper-extra library: Zipper utils that weren't in Control.Comonad.Store.Zipper

Compatibility

base-compat library: A compatibility layer for base
base-compat-batteries library and test: base-compat with extra batteries
base-orphans library and test: Backwards-compatible orphan instances for base
binary-orphans library and test: Compatibility package for binary; provides instances
deriving-compat library and test: Backports of GHC deriving extensions
mtl-compat library: Backported Control.Monad.Except module from mtl
prelude-compat library: Provide Prelude and Data.List with fixed content across GHC versions
template-haskell-compat-v0208 library: A backwards compatibility layer for Template Haskell newer than 2.8
time-compat library and tests: Compatibility package for time
transformers-compat library: A small compatibility shim for the transformers library
types-compat library: ghc-7.6/7.8 compatible GHC.TypeLits, Data.Typeable and Data.Proxy.

Compilation

platinum-parsing library, program and test: General Framework for compiler development.

Compiler

ajhc library and programs: Haskell compiler that produce binary through C language
alpha program: A compiler for the Alpha language
annah library and program: Medium-level language that desugars to Morte
binaryen library and test: Haskell bindings to binaryen
bond library, program and test: Bond schema compiler and code generator
cao program: CAO Compiler
circ library: A Compiler IR Compiler.
core-compiler library and program: compile your own mini functional language with Core
datafix library, program, tests and benchmark: Fixing data-flow problems
dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
dhall library, program, tests and benchmarks: A configuration language guaranteed to terminate
dhall-bash library and program: Compile Dhall to Bash
dhall-docs library, program and tests: Generate HTML docs from a dhall package
dhall-json library, programs and test: Convert between Dhall and JSON or YAML
dhall-nix program: Dhall to Nix compiler
dhall-openapi library and program: Convert an OpenAPI specification to a Dhall package
dhall-text program: Template text using Dhall
dhall-yaml library, programs and test: Convert between Dhall and YAML
Elm library, programs and tests: The Elm language module.
elm-bridge library and tests: Derive Elm types and Json code from Haskell types, using aeson's options
elm-build-lib library: Compile Elm code to JS within Haskell
elm-compiler library, programs and test: Values to help with elm-package, elm-make, and elm-lang.org.
elm-core-sources library: Source files for the Elm runtime and standard libraries
elm-reactor program: Interactive development tool for Elm programs
elm-server program: Server for developing Elm projects
elm-street library, programs and test: Crossing the road between Haskell and Elm
elm-syntax library and test: Elm syntax and pretty-printing
feldspar-compiler library, tests and benchmark: Compiler for the Feldspar language
flite library and programs: f-lite compiler, interpreter and libraries
flp library, programs and test: A layout spec language for memory managers implemented in Rust.
formal program: A statically typed, functional programming language
forml program: A statically typed, functional programming language
gf library, programs and test: Grammatical Framework
hackager program: Hackage testing tool
haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
haskelm library, program and test: Elm to Haskell translation
haste-compiler programs: Haskell To ECMAScript compiler
hcc program: A toy C compiler.
helium library and programs: The Helium Compiler.
hgom program: An haskell port of the java version of gom
hs2bf program: Haskell to Brainfuck compiler
jsonnet library, program and test: Jsonnet implementaton in pure Haskell
KiCS library and programs: A compiler from Curry to Haskell
lambda2js program: Untyped Lambda calculus to JavaScript compiler
lambdacube-compiler library and programs: LambdaCube 3D is a DSL to program GPUs
lazyboy library and test: An EDSL for programming the Game Boy.
lhc programs: LHC Haskell Compiler
maxsharing program: Maximal sharing of terms in the lambda calculus with letrec
microc library, program and test: microc compiler
miv program and test: Vim plugin manager written in Haskell
morloc library, program and test: A multi-lingual, typed, workflow language
morte library, program, test and benchmark: A bare-bones calculus of constructions
ntha library, program and test: A tiny statically typed functional programming language.
oplang program: Compiler for OpLang, an esoteric programming language
optimusprime program: A supercompiler for f-lite
pcf library: A one file compiler for PCF
platinum-parsing library, program and test: General Framework for compiler development.
record-preprocessor library, program and benchmark: Compiler preprocessor introducing a syntactic extension for anonymous records
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
sjsp program: Simple JavaScript Profiler
statechart program: Compiles Rhapsody statecharts to C.
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
supero program: A Supercompiler
tiger program: Tiger Compiler of Universiteit Utrecht
zeolite-lang library, programs and test: Zeolite is a statically-typed, general-purpose programming language.

Compiler Plugin

apply-unordered library and test: Apply a function to an argument specified by a type level Nat
BinderAnn library and test: Source-to-source plugin for enhancing EDSLs with static annotations
const-math-ghc-plugin library and test: Compiler plugin for constant math elimination
cse-ghc-plugin library: Compiler plugin for common subexpression elimination
ghc-clippy-plugin library: Override GHC error messages to the user's liking
ghc-plugs-out library and tests: Type checker plugins without the type checking.
ghc-proofs library and tests: GHC plugin to prove program equations by simplification
haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
inspection-testing library and tests: GHC plugin to do inspection testing
magic-tyfams library: Write plugins for magic type families with ease
seqaid library and programs: Dynamic strictness control, including space leak repair
smuggler2 library and test: GHC Source Plugin that helps to minimise imports and generate explicit exports
strict-ghc-plugin library: Compiler plugin for making Haskell strict
typecheck-plugin-nat-simple library and tests: Simple type check plugin which calculate addition, subtraction and less-or-equal-than
unroll-ghc-plugin library: Compiler plugin for loop unrolling

Compilers

bound-extras library and test: ScopeH and ScopeT extras for bound
funcons-intgen program: Generate Funcons interpreters from CBS description files
fungll-combinators library: GLL parser with simple combinator interface
gll library: GLL parser with simple combinator interface
kaleidoscope library and programs: Haskell Kaleidoscope tutorial
kempe library, program, tests and benchmark: Kempe compiler
llvm-hs-pretty library and test: A pretty printer for LLVM IR.

Compilers/Interpreters

accelerate library and tests: An embedded language for accelerated array processing
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
alms program: a practical affine language
amrun program: Interpreter for AM
angle library, program, test and benchmarks: A small, general-purpose programming language.
asic program: Action Script Instrumentation Compiler
asil library: Action Script Instrumentation Library
atuin program: Embedded Turtle language compiler in Haskell, with Epic output
baskell program: An interpreter for a small functional language
Befunge93 program: An interpreter for the Befunge-93 Programming Language
bound library and tests: Making de Bruijn Succ Less
bound-gen library: Unwrap Scope's with globally fresh values
brainfuck library and program: Brainfuck interpreter
brainfuck-monad library: BrainFuck monad
cfipu program: cfipu processor for toy brainfuck-like language
cfopu program: cfopu processor
cnc-spec-compiler program: Compiler/Translator for CnC Specification Files.
compilation library: Haskell functionality for quickly assembling simple compilers.
core-haskell program: A subset of Haskell using in UCC for teaching purpose
CPBrainfuck program: A simple Brainfuck interpretter.
CPL program: An interpreter of Hagino's Categorical Programming Language (CPL).
dcpu16 library, program and test: DCPU-16 Emulator & Assembler
ddc-base library: Disciplined Disciple Compiler common utilities.
ddc-build library: Disciplined Disciple Compiler build framework.
ddc-code library: Disciplined Disciple Compiler base libraries.
ddc-core library: Disciplined Disciple Compiler core language and type checker.
ddc-core-babel library: Disciplined Disciple Compiler PHP code generator.
ddc-core-eval library: Disciplined Disciple Compiler semantic evaluator for the core language.
ddc-core-flow library: Disciplined Disciple Compiler data flow compiler.
ddc-core-llvm library: Disciplined Disciple Compiler LLVM code generator.
ddc-core-salt library: Disciplined Disciple Compiler C code generator.
ddc-core-simpl library: Disciplined Disciple Compiler code transformations.
ddc-core-tetra library: Disciplined Disciple Compiler intermediate language.
ddc-driver library: Disciplined Disciple Compiler top-level driver.
ddc-interface library: Disciplined Disciple Compiler user interface support.
ddc-source-tetra library: Disciplined Disciple Compiler source language.
ddc-tools programs: Disciplined Disciple Compiler command line tools.
ddc-war program: Disciplined Disciple Compiler test driver and buildbot.
ddci-core program: Disciple Core language interactive interpreter.
dedukti library and programs: A type-checker for the λΠ-modulo calculus.
Delta-Lambda program and test: A demonstration interpreter for type system delta-lambda (of N.G. De-bruijn)
egison library, programs, tests and benchmark: Programming language with non-linear pattern-matching against non-free data
egison-tutorial program: A tutorial program for the Egison programming language
epic library and program: Compiler for a simple functional language
exploring-interpreters library: A generic exploring interpreter for exploratory programming
fst library, program and test: Finite state transducers
funcons-simple program: A modular interpreter for executing SIMPLE funcons
funcons-tools library and program: A modular interpreter for executing funcons
funcons-values library: Library providing values and operations on values in a fixed universe.
Fungi program: Funge-98 interpreter written in Haskell
ghci-haskeline program: An implementation of ghci using the Haskeline line-input library.
ghclive library and program: Interactive Haskell interpreter in a browser.
glambda library, program and test: A simply typed lambda calculus interpreter, written with GADTs
graph-rewriting-lambdascope program: Lambdascope, an optimal evaluator of the lambda calculus, ...
graph-rewriting-ski programs: Two evalutors of the SKI combinator calculus as interactive graph rewrite systems
graph-rewriting-trs program: Evaluate first-order applicative term rewrite systems interactively using graph reduction
graph-rewriting-ww program: ...
gulcii program: graphical untyped lambda calculus interactive interpreter
HARM library and programs: A simple ARM emulator in haskell
Haschoo program: Minimalist R5RS Scheme interpreter
haskeem program: A small scheme interpreter
helisp program: An incomplete Elisp compiler
hiccup program: Relatively efficient Tcl interpreter with support for basic operations
hint library and test: Runtime Haskell interpreter (GHC API wrapper)
hint-server library: A server process that runs hint.
hinter library and test: Runtime Haskell interpreter (GHC API wrapper)
hjs library and program: JavaScript Parser
hLLVM library and program: A library for analyzing and transforming LLVM (3.5) assembly codes
hoe program: hoe: Haskell One-liner Evaluator
hoopl library and test: A library to support dataflow analysis and optimization
husk-scheme library and programs: R5RS Scheme interpreter, compiler, and library.
husk-scheme-libs library: Extra libraries for the husk Scheme platform.
hybrid program: A implementation of a type-checker for Lambda-H
hyper-haskell-server program: Server back-end for the HyperHaskell graphical Haskell interpreter
idris library, programs and test: Functional Programming Language with Dependent Types
INblobs program: Editor and interpreter for Interaction Nets
intcode library and test: Advent of Code 2019 intcode interpreter
lambda-ast library: Lambda Calculi Abstract Syntax Trees
lambdacube program: A simple lambda cube type checker.
LambdaShell program: Simple shell for evaluating lambda expressions
language-dickinson library, program, test and benchmark: A language for generative literature
llvm library: Bindings to the LLVM compiler toolkit.
llvm-base library: FFI bindings to the LLVM compiler toolkit.
llvm-base-util library: Utilities for bindings to the LLVM compiler toolkit.
llvm-dsl library: Support for writing an EDSL with LLVM-JIT as target
llvm-extension library and program: Processor specific intrinsics for the llvm interface
llvm-extra library, program and test: Utility functions for the llvm interface
llvm-ffi library and programs: FFI bindings to the LLVM compiler toolkit.
llvm-ffi-tools programs: Tools for maintaining the llvm-ffi package
llvm-general library and test: General purpose LLVM bindings
llvm-general-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-general-quote library and test: QuasiQuoting llvm code for llvm-general
llvm-hs library and test: General purpose LLVM bindings
llvm-hs-pure library and test: Pure Haskell LLVM functionality (no FFI).
llvm-ht library: Bindings to the LLVM compiler toolkit with some custom extensions.
llvm-tf library, programs and test: Bindings to the LLVM compiler toolkit using type families.
lvmlib library and program: The Lazy Virtual Machine (LVM).
lvmrun program: The Lazy Virtual Machine (LVM) Runtime System.
mappy library, program and test: A functional programming language focused around maps.
nom library and tests: Name-binding & alpha-equivalence
nominal library: Binders and alpha-equivalence made easy
noodle library and programs: the noodle programming language
NXTDSL library and program: Generate NXC Code from DSL
omega program: A purely functional programming language and a proof system
peg program: a lazy non-deterministic concatenative programming language
pesca program: Proof Editor for Sequent Calculus
pi-forall library and program: Demo implementation of typechecker for dependently-typed language
piet library and program: A Piet interpreter
pretty-loc library: Tracking and highlighting of locations in source files
risc386 program: Reduced instruction set i386 simulator
secd library, program and test: A Haskell implementation of the SECD abstract machine
secdh library and program: SECDH Machine Simulator
shell-monad library: shell monad
shimmer library and program: The Reflective Lambda Machine
simple-atom library: Atom (or symbol) datatype for fast comparision and sorting.
simple-pascal library and program: Simplified Pascal language to SSVM compiler
simple-stacked-vm library and program: Simple stacked virtual machine: assembler, disassembler, bytecode interpreter
soyuz library and program: DCPU-16 architecture utilities for Notch's 0x10c game.
staticanalysis library: Reusable static analysis interfaces and modules.
swf library: A library for creating Shockwave Flash (SWF) files
tempus program: Interpreter for the FRP language Tempus
textmatetags program: A simple Haskell program to provide tags for Haskell code completion in TextMate
TinyLaunchbury library: Simple implementation of call-by-need using Launchbury's semantics
transf library and program: Text transformer and interpreter.
TypeIlluminator program: TypeIlluminator is a prototype tool exploring debugging of type errors/
unbound library and test: Generic support for programming with names and binders
unification-fd library: Simple generic unification algorithms.
unlambda library and program: Unlambda interpreter
uu-cco library: Utilities for compiler construction: core functionality
uu-cco-examples programs: Utilities for compiler construction: example programs
uu-cco-hut-parsing library: Utilities for compiler construction: Feedback wrapper around parser in uulib
uu-cco-uu-parsinglib library: Utilities for compiler construction: Feedback wrapper around parser in uu-parsinglib
vintage-basic program and test: Interpreter for microcomputer-era BASIC
wasm library, program and test: WebAssembly Language Toolkit and Interpreter
whitespace program: Whitespace, an esoteric programming language.
yabi program: Yet Another Brainfuck Interpreter
zot program: Zot language

Composition

Aoide library: A simple music library with the capability of generating .ly and .mid files.
higherorder library: Some higher order functions for Bool and []
hofix-mtl library: defining @mtl@-ready monads as * -> * fixed-points
invertible library and test: bidirectional arrows, bijective functions, and invariant functors
invertible-hlist library: invertible functions and instances for HList
invertible-hxt library: invertible transformer instances for HXT Picklers
pointless-fun library: Some common point-free combinators.
reverse-apply library: Standard version of the reverse apply operator.
star-to-star library: the * -> * types, operators, and covariant instances.
star-to-star-contra library: contravariant instances for * -> * types and operators.
TypeCompose library: Type composition classes & instances

Compression

brotli library and test: Brotli (RFC7932) compression and decompression
brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
bz2 library, test and benchmark: Bindings to libbz2
bzip-signature library: Backpack signature for BZip compression
compressed library: Compressed containers and reducers
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
huffman library: Pure Haskell implementation of the Huffman encoding algorithm
lz4-conduit library, program and test: LZ4 compression for conduits
lz4-hs library, test and benchmarks: lz4 bindings for Haskell
lzip library: Lzip compression / Lzlib bindings
lzlib library, test and benchmarks: lzlib bindings
lzma library and test: LZMA/XZ compression and decompression
lzma-conduit library and test: Conduit interface for lzma/xz compression.
lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
lzma-static test: LZMA/XZ compression and decompression (static)
lzma-streams library and test: IO-Streams interface for lzma/xz compression
lzo library, test and benchmark: minilzo bundled for Haskell
machines-zlib library: Decompression support for machines
parquet-hs library and tests: Streaming Parquet reader
pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
pipes-zlib library and test: Zlib and GZip compression and decompression for Pipes streams
potoki-zlib library: Streaming ZLib decompression
sak program: Compression command-line tool
shake-bindist library: Rules for binary distributions
snappy library and test: Bindings to the Google Snappy library for fast compression/decompression
snappy-framing library: Snappy Framing Format in Haskell
snappy-lazy library: Lazy bytestring compression and decompression
streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
streaming-lzma library and test: Streaming interface for LZMA/XZ compression
webp library and test: JuicyPixels support for WebP format
zlib-enum program: Enumerator interface for zlib compression

Computer Algebra

cash library: the Computer Algebra SHell

Concourse

dhall-fly library, program and test: Translate concourse config from Dhall to YAML

Concurrency

accelerate library and tests: An embedded language for accelerated array processing
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
actor library: Actors with multi-headed receive clauses
alarmclock library and test: Wake up and perform an action at a certain time.
arbor-lru-cache library and test: LRU cache based on STM
async library, programs and test: Run IO operations asynchronously and wait for their results
async-combinators library and test: Async combinators
async-dejafu library and test: Run MonadConc operations asynchronously and wait for their results.
async-extras library: Extra Utilities for the Async Library
async-manager library and program: A thread manager for async
async-timer library and test: Provides API for timer based execution of IO actions
atomic-modify library: A typeclass for mutable references that have an atomic modify operation.
atomic-primops-vector library and test: Atomic operations on Data.Vector types
AVar library: Mutable variables with Exception handling and concurrency support.
bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
bitset-word8 library, test and benchmark: Space efficient set of Word8 and some pre-canned sets useful for parsing HTTP
blocking-transactions library: Composable, blocking transactions.
bounded-tchan library: Bounded Transactional channels (queues)
BoundedChan library: Implementation of bounded channels.
butter library and tests: Monad Transformer for Asyncronous Message Passing
caf library: A library of Concurrency Abstractions using Futures.
capataz library and test: OTP-like supervision trees in Haskell
chan library and test: Some extra kit for Chans
chan-split library: Concurrent Chans as read/write pairs. Also provides generic Chan pair class.
chp library: An implementation of concurrency ideas from Communicating Sequential Processes
chp-mtl library: MTL class instances for the CHP library
chp-plus library: A set of high-level concurrency utilities built on Communicating Haskell Processes
chp-spec library: A mirror implementation of chp that generates a specification of the program
chp-transformers library: Transformers instances for the CHP library
cio library: A monad for concurrent IO on a thread pool
clocked library: timer functionality to clock IO commands
cml library: Events and Channels as in Concurrent ML
collapse-util program: utility for collapsing adjacent writes
conceit library: Concurrent actions that may fail with a value.
concurrency library: Typeclasses, functions, and data types for concurrency and STM.
concurrent-barrier library: Simple thread barriers
Concurrent-Cache library: A Cached variable for IO functions.
concurrent-extra library and test: Extra concurrency primitives
concurrent-hashtable library, test and benchmark: Thread-safe hash tables for multi-cores!
concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
concurrent-rpc library: An abstraction for inter-thread RPC based on MVars
concurrent-sa library: Concurrent simulated annealing system.
concurrent-supply library and test: A fast concurrent unique identifier supply with a pure API
concurrent-utilities library: More utilities and broad-used datastructures for concurrency.
ConcurrentUtils library: Concurrent utilities
conlogger library and program: A logger for a concurrent program.
consumers library and tests: Concurrent PostgreSQL data consumers
coroutine-enumerator library: Bridge between the monad-coroutine and enumerator packages.
coroutine-iteratee library: Bridge between the monad-coroutine and iteratee packages.
CSPM-CoreLanguage library: Definition of a CSP core-language.
CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
CSPM-FiringRules library: Firing rules semantic of CSPM
CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
CSPM-Interpreter library: An interpreter for CSPM
cspmchecker programs: A command line type checker for CSPM files.
ctrie library, test and benchmarks: Non-blocking concurrent map
data-concurrent-queue library: A Library for directional queues
data-ivar library: Write-once variables with concurrency support
data-timeout library: 64-bit timeouts of nanosecond precision
dejafu library: A library for unit-testing concurrent programs.
delay library and test: More useful and humain delaying functions
drama library and programs: Actor library for Haskell
epass library: Baisc, Erlang-like message passing supporting sockets.
eprocess library: Basic Erlang-like process support for Haskell
equeue library and test: Application level triggered, and edge triggered event multiqueues.
event library: Monoidal, monadic and first-class events
expiring-mvar library: Create values which expire after a period of time.
extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
festung library, program and test: Remote multi-db SQLCipher server
flush-queue library, test and benchmark: ...
forward-chan library: Concurrent channels with a forwarding primitive
fraxl library, program and benchmark: Cached and parallel data fetching.
free-concurrent library: Free monads suitable for concurrent computation
future library: Supposed to mimics and enhance proposed C++ "future" features
futures library: Simple and fast implementation of Future
global-lock library: A global lock implemented without unsafePerformIO
gochan library, programs and test: Go-style channels
Graph500 library and program: Graph500 benchmark-related definitions and data set generator.
GraphHammer library: GraphHammer Haskell graph analyses framework inspired by STINGER.
GraphHammer-examples library and programs: Test harness for TriangleCount analysis.
hactor library: Lightweight Erlang-style actors for Haskell.
hactors library: Practical actors for Haskell.
hakka library and program: Minimal akka-inspired actor library
haxl library, programs and test: A Haskell library for efficient, concurrent, and concise data access.
haxl-facebook library and test: An example Haxl data source for accessing the Facebook Graph API
heartbeat-streams library: Heartbeats for io-streams
hint-server library: A server process that runs hint.
HLogger library and program: Simple, concurrent and easy-to-use logging library
hlogger library: Simple, concurrent, extendable and easy-to-use logging library
hydra-print library, programs and test: NCurses interface to view multiple ByteString streams in parallel.
immortal library and test: Spawn threads that never die (unless told to do so)
immortal-queue library and test: Build a pool of queue-processing worker threads.
immortal-worker library: Create worker threads that logs exceptions and restarts.
inc-ref library: A STM reference useful for incremental computing
io-throttle library and test: Limit number of IO actions started per second
iothread library: run IOs in a single thread
ivar-simple library: Write once concurrency primitives.
join library: Parallel Join Patterns with Guards and Propagation
kazura-queue library, tests and benchmark: Fast concurrent queues much inspired by unagi-chan
keera-callbacks library: Mutable memory locations with callbacks
ki library and tests: A lightweight, structured-concurrency library
kickchan library and test: Kick Channels: bounded channels with non-blocking writes
lawless-concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
legion library: Distributed, stateful, homogeneous microservice framework.
libcspm library and test: A library providing a parser, type checker and evaluator for CSPM.
lifted-async library, tests and benchmarks: Run lifted IO operations asynchronously and wait for their results
lifted-stm library: STM operations lifted through monad transformer stacks
lifted-threads library: lifted IO operations from the threads library
lockpool library: set a maximum on the number of concurrent actions
lrucaching-haxl library: Combine lrucaching and haxl.
lub library: information operators: least upper bound (lub) and greatest lower bound (glb)
lukko library and tests: File locking
lvar library: TMVar that can be listened to
lvish library and test: Parallel scheduler, LVar data structures, and infrastructure to build more.
massiv-scheduler library and tests: Work stealing scheduler for Massiv (Массив) and other parallel applications.
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
midair library: Hot-swappable FRP
monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
monadIO library: Overloading of concurrency variables
mstate library: MState: A consistent State monad for concurrent applications.
multisetrewrite library: Multi-set rewrite rules with guards and a parallel execution scheme
mvar-lock library: A trivial lock based on MVar.
mvc library: Model-view-controller
mvc-updates library: Concurrent and combinable updates
named-lock library: A named lock that is created on demand.
nano-erl library: Small library for Erlang-style actor semantics
ochan library and test: Owned channels in the Ownership Monad
om-actor library: Actor pattern utilities.
orderly-workers library: Fork concurrent worker threads and produce ordered results
parallel-io library and programs: Combinators for executing IO actions in parallel on a thread pool.
parallel-tree-search library: Parallel Tree Search
persistent-map library: A thread-safe (STM) persistency interface for finite map types.
pipes-cliff library and programs: Streaming to and from subprocesses using Pipes
pipes-concurrency library and test: Concurrency for the pipes ecosystem
polysemy-conc library and test: Polysemy Effects for Concurrency
post-mess-age library: Send messages to a handle concurrently without getting them mixed.
prefetch program: Prefetch stdin even before stdout is ready
priority-sync library and program: Cooperative task prioritization.
PriorityChansConverger library: Read single output from an array of inputs - channels with priorities
privileged-concurrency library: Provides privilege separated versions of the concurrency primitives.
promise library: A monadic interface for async
pulse library: Synchronize actions to a time pulse
qsem library: quantity semaphores
reactor library: Reactor - task parallel reactive programming
restricted-workers library: Running worker processes under system resource restrictions
rio-process-pool library, program, test and benchmark: A library for process pools coupled with asynchronous message queues
roundRobin library and test: A simple round-robin data type
rwlock library: Multiple-read / single-write locks
SafeSemaphore library and test: Much safer replacement for QSemN, QSem, and SampleVar
scc library, program and test: Streaming component combinators
scheduler library and tests: Work stealing scheduler.
scotty-haxl library: Combine scotty and haxl
semaphore-plus library: Various concurrency abstractions built on top of semaphores
sharedio library: Bundles shared calls to IO functions to perform them only once
simple-actors library: A library for more structured concurrent programming, based on the Actor Model
singnal library: Singnal
sirkel library: Sirkel, a Chord DHT
skip-var library: Skip variables
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
spawn library: Tiny library for concurrent computations
speculation library: A framework for safe, programmable, speculative parallelism
split-channel library: Control.Concurrent.Chan split into sending and receiving halves.
split-tchan library: STM's TChan split into sending and receiving halves.
Stasis library and program: A simple MVCC like library
stc-lang library, program and test: A library for implicit, monadic dataflow parallelism
stm library: Software Transactional Memory
stm-channelize library: Transactional I/O for duplex streams
stm-chans library: Additional types of channels for STM.
stm-chunked-queues library and test: Chunked Communication Queues
stm-conduit library and tests: Introduces conduits to channels, and promotes using conduits concurrently.
stm-containers library and test: Containers for STM
stm-extras library: Extra STM functions
stm-hamt library, test and benchmark: STM-specialised Hash Array Mapped Trie
stm-incremental library and test: A library for constructing incremental computations
stm-io-hooks library: Launch your IO-actions from within the STM monad
stm-lifted library: Software Transactional Memory lifted to MonadIO
stm-orelse-io library: Choose between the return value of an STM operation and an IO action.
stm-promise library and test: Simple STM Promises for IO computations and external processes
stm-queue-extras library: Extra queue utilities for STM
stm-stats library: retry statistics for STM transactions
stmcontrol library: Control communication among retrying transactions
streamly library, programs and tests: Beautiful Streaming, Concurrent and Reactive Composition
supervisors library and test: Monitor groups of threads with non-hierarchical lifetimes.
suspend library: Simple package that allows for long thread suspensions.
sync library: A fast implementation of synchronous channels with a CML-like API
synchronous-channels library: Synchronous communication channels
tag-bits library: Provides access to the dynamic pointer tagging bits used by GHC.
tbox library: Transactional variables and data structures with IO hooks
theatre library: Minimalistic actor library
thespian library: Lightweight Erlang-style actors for Haskell
thread-hierarchy library and test: Simple Haskell thread management in hierarchical manner
thread-supervisor library and test: A simplified implementation of Erlang/OTP like supervisor over thread
threadmanager library: (deprecated in favor of 'threads') Simple thread management
ThreadObjects library: Mutable objects that reside in their own threads.
threads library and test: Fork threads and wait for their result
threads-supervisor library, program and test: Simple, IO-based library for Erlang-style thread supervision
throttle-io-stream library and test: Throttler between arbitrary IO producer and consumer functions
throttled library: Concurrent processing of a Foldable, throttled by CPU count.
ticker library and tests: A concurrent utility inspired by Ticker in golang
timeout library and test: Generalized sleep and timeout functions
timeout-control library: Updatable timeouts as a Monad transformer
timeout-with-results library: Runs a time-limited computation alowing it to return intermediate results.
timers library: Simple package that implements timers.
timers-updatable library: timers which are updatable in the remaining time
token-bucket library and test: Rate limiter using lazy bucket algorithm
token-limiter library, program and test: Fast rate limiting using the token bucket algorithm (BSD)
transient library and test: composing programs with multithreading, events and distributed computing
tskiplist library: A Skip List Implementation in Software Transactional Memory (STM)
ttrie library, test and benchmark: Contention-free STM hash map
twilight-stm library: STM library with safe irrevocable I/O and inconsistency repair
typed-duration library: Thread delay and timeout functions with typed arguments
unagi-bloomfilter library, program, test and benchmark: A fast, cache-efficient, concurrent bloom filter
unagi-chan library, test and benchmarks: Fast concurrent queues with a Chan-like API, and more
unagi-streams library: Unagi Chan IO-Streams
unamb library and program: Unambiguous choice
unamb-custom library: Functional concurrency with unamb using a custom scheduler.
unbounded-delays library: Unbounded thread delays and timeouts
unique library: Fully concurrent unique identifiers
unlift-stm library: (un)lifted classes and functions for the STM monad
unliftio-messagebox library, program, test and benchmark: Fast and robust message queues for concurrent processes
unsafe-promises library: Create pure futures using lazy IO.
wait-handle library: Wait handles are MVars which can only be written to once, ...
waitfree library: A wrapping library for waitfree computation.

Concurrent

chaselev-deque library and test: Chase & Lev work-stealing lock-free double-ended queues (deques).
concurrent-split library: MVars and Channels with distinguished input and output side
forkable-monad library: An implementation of forkIO for monad stacks.
lockfree-queue library and test: Michael and Scott lock-free queues.
net-concurrent library: Concurrent over the network execution library
par-traverse library: Traverse a directory in parallel
promises library: Lazy demand-driven promises
sirkel library: Sirkel, a Chord DHT
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
spawn library: Tiny library for concurrent computations
stm-split library: TMVars, TVars and TChans with distinguished input and output side
threaded library and test: Manage concurrently operating threads without having to spark them
throttled-io-loop library and test: Loop over an action but throttle it to a certain rate

Conduit

amqp-streamly library and test: A simple streamly wrapper for amqp
ascii85-conduit library and test: Conduit for encoding ByteString into Ascii85
atom-conduit library and tests: Streaming parser/renderer for the Atom 1.0 standard (RFC 4287).
attoparsec-conduit library: Consume attoparsec parsers via conduit. (deprecated)
base64-conduit library and test: Base64-encode and decode streams of bytes. (deprecated)
binary-conduit library and test: data serialization/deserialization conduit library
bits-conduit library, test and benchmark: Bitstream support for Conduit
blaze-builder-conduit library: Convert streams of builders to streams of bytestrings. (deprecated)
brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
cereal-conduit library and test: Turn Data.Serialize Gets and Puts into Sources, Sinks, and Conduits
conduit library, test and benchmarks: Streaming data processing library.
conduit-algorithms library, test and benchmark: Conduit-based algorithms
conduit-combinators library: DEPRECATED Functionality merged into the conduit package itself
conduit-concurrent-map library and test: Concurrent, order-preserving mapping Conduit
conduit-connection library and test: Conduit source and sink for Network.Connection.
conduit-extra library, test and benchmark: Batteries included conduit: adapters for common libraries.
conduit-iconv library, test and benchmark: Conduit for character encoding conversion.
conduit-merge library: Merge multiple sorted conduits
conduit-parse library and tests: Parsing framework based on conduit.
conduit-resumablesink library and test: Allows conduit to resume sinks to feed multiple sources into it.
conduit-tokenize-attoparsec library, program and test: Conduits for tokenizing streams.
conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
conduit-zstd library and test: Conduit-based ZStd Compression
couchdb-conduit library and test: Couch DB client library using http-conduit and aeson
crypto-conduit library and test: Conduit interface for cryptographic operations (from crypto-api).
cryptohash-conduit library: cryptohash conduit
cryptonite-conduit library and test: cryptonite conduit
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
decoder-conduit library: Conduit for decoding ByteStrings using Data.Binary.Get
filesystem-conduit library and test: Use system-filepath data types with conduits. (deprecated)
fluent-logger-conduit library: Conduit interface for fluent-logger
fold-debounce-conduit library and test: Regulate input traffic from conduit Source with Control.FoldDebounce
fsnotify-conduit library and test: Get filesystem notifications as a stream of events
ftp-conduit library: FTP client package with conduit interface based off http-conduit
hreq-conduit library and tests: Conduit streaming support for Hreq.
html-conduit library and test: Parse HTML documents using xml-conduit datatypes.
http-conduit library and test: HTTP client package with conduit interface and HTTPS support.
http-conduit-browser library and test: Browser interface to the http-conduit package
hw-all library: Demo library
hw-conduit library, tests and benchmark: Conduits for tokenizing streams.
hw-conduit-merges library and test: Additional merges and joins for Conduit
hw-succinct library: Succint datastructures
imagesize-conduit library and test: Determine the size of some common image formats.
jsonrpc-conduit library and test: JSON-RPC 2.0 server over a Conduit.
lz4-conduit library, program and test: LZ4 compression for conduits
lzma-conduit library and test: Conduit interface for lzma/xz compression.
network-conduit library: Stream socket data using conduits. (deprecated)
opml-conduit library and tests: Streaming parser/renderer for the OPML 2.0 format.
pool-conduit library: Resource pool allocations via ResourceT. (deprecated)
potoki-conduit library and test: Integration of "potoki" and "conduit"
process-conduit library and test: Conduits for processes (deprecated)
req-conduit library, test and benchmark: Conduit helpers for the req HTTP client library
resourcet library and test: Deterministic allocation and freeing of scarce resources.
resourcet-pool library: A small library to convert a Pool into an Acquire
rss-conduit library and tests: Streaming parser/renderer for the RSS standard.
sandi library, test and benchmark: Data encoding library
shell-conduit library and test: Write shell scripts with Conduit
simple-conduit library and benchmark: A simple streaming I/O library based on monadic folds
stm-conduit library and tests: Introduces conduits to channels, and promotes using conduits concurrently.
stomp-conduit library: Stompl Conduit Client
tagstream-conduit library and test: streamlined html tag parser
twitter-conduit library and tests: Twitter API package with conduit interface and Streaming API support.
udp-conduit library: Simple fire-and-forget conduit UDP wrappers
wai-conduit library: conduit wrappers for WAI
xinput-conduit library: Conduit of keys pressed by xinput
xml-conduit library and tests: Pure-Haskell utilities for dealing with XML with the conduit package.
xml-conduit-parse library and tests: Streaming XML parser based on conduits.
zip-conduit library, test and benchmark: Working with zip archives via conduits.
zip-stream library and programs: ZIP archive streaming using conduits
zlib-conduit library: Streaming compression/decompression via conduits. (deprecated)

Config

aws-mfa-credentials program: Keep your AWS credentials file up to date with MFA-carrying credentials
rasa-example-config program: Example user config for Rasa

Configuration

app-settings library and test: A library to manage application settings (INI file-like)
aws-configuration-tools library: Configuration types, parsers & renderers for AWS services
bini library: A collection of various methods for reading and writing bini files.
boots-app library and program: Factory for quickly building an application
conf library and test: Parser for Haskell-based configuration files.
conf-json library and test: read, parse json config
conferer library and test: Configuration management library
conferer-aeson library and test: conferer's source for reading json files
conferer-dhall library and test: Configuration for reading dhall files
conferer-hedis library and test: conferer's FromConfig instances for hedis settings
conferer-hspec library and test: conferer's FromConfig instances for hspec Config
conferer-provider-dhall library and test: Configuration for reading dhall files
conferer-provider-json library and test: conferer's provider for reading json files
conferer-provider-yaml library and test: Configuration for reading yaml files
conferer-snap library and test: conferer's FromConfig instances for snap Config
conferer-source-dhall library and test: Configuration for reading dhall files
conferer-source-json library and test: conferer's source for reading json files
conferer-source-yaml library and test: Configuration for reading yaml files
conferer-warp library and test: conferer's FromConfig instances for warp settings
conferer-yaml library and test: Configuration for reading yaml files
config-ini library and tests: A library for simple INI-based configuration files.
config-manager library and test: Configuration management
config-value-getopt library: Interface between config-value and System.GetOpt
Configger library: Parse config files
configifier library, program and test: parser for config files, shell variables, command line args.
configuration-tools library, program and tests: Tools for specifying and parsing configurations
configurator library and test: Configuration management
configurator-export library and test: Pretty printer and exporter for configurations from the "configurator" library.
configurator-ng library and test: The next generation of configuration management
configurator-pg library and test: Reduced parser for configurator-ng config files
descrilo library: Loads a list of items with fields
dotenv library, program and test: Loads environment variables from dotenv files
dyre library and test: Dynamic reconfiguration in Haskell
etc library and test: Declarative configuration spec for Haskell projects
expresso library, program and test: A simple expressions language based on row types
global-config library and test: Global mutable configuration
hsini library and test: ini configuration files
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
ini library and test: Quick and easy configuration files in the INI format.
ini-qq library and test: Quasiquoter for INI
keylayouts library: Tools for macOS .keylayout files
life-sync library, program and test: Synchronize personal configs across multiple machines.
load-env library and tests: Load environment variables from a file.
minimal-configuration library: Minimal ini like configuration library with a few extras
salak library, test and benchmark: Configuration (re)Loader and Parser.
salak-toml library, test and benchmark: Configuration Loader for toml
salak-yaml library, test and benchmark: Configuration Loader for yaml
SConfig library: A simple config library
tce-conf library, programs and test: Very simple config file reading
tini library and test: Tiny INI file and configuration library with a minimal dependency footprint.
tomland library, programs and test: Bidirectional TOML serialization
typeparams library: ...
ucl library and test: Datatype and parser for the Universal Configuration Language (UCL) using libucl
yaml-config library and test: Configuration management

Console

argparser library and test: Command line parsing framework for console applications
buffer-pipe program: Read from stdin and write to stdout in large blocks
cltw program: Command line Twitter utility
cmdargs library and program: Command line argument processing
cmdargs-browser program: Helper to enter cmdargs command lines using a web browser
cmdtheline library and test: Declarative command-line option parsing and documentation library.
coalpit library and test: Command-line options and DSV parsing and printing
configuration-tools library, program and tests: Tools for specifying and parsing configurations
console-program library: Interpret the command line and a config file as commands and options
credentials-cli program: Secure Credentials Administration
csv-to-qif program and test: A small program that will read csv files and create qif files
cutter program: Cut files according to a position list
dapi program: Prints a series of dates
docopt library and test: A command-line interface parser that will make you smile
epub-tools programs and test: Command line utilities for working with epub files
epubname program: Rename epub ebook files based on meta information
equal-files program: Shell command for finding equal files
flow2dot library, program and test: Library and binary to generate sequence/flow diagrams from plain text source
follower program: Follow Tweets anonymously
garepinoh library and programs: reverse prefix notation calculator and calculation library
getopt-generics library and test: Create command line interfaces with ease
ginsu program: Ginsu Gale Client
givegif library, program and test: CLI Giphy search tool with previews in iTerm 2
group-by-date program: Shell command for grouping files by dates into folders
hable library: customizable pretty printer library for tables
hascal library and program: tiny calculator library and command-line program
haskdeep program: Computes and audits file hashes.
haskell-awk library, program and test: Transform text from the command-line using Haskell expressions.
haskell-say library and program: Let the Haskell logo talk to your users!
hello program: Hello World, an example package
hflags library: Command line flag parser, very similar to Google's gflags
Hish library and program
historian program: Extract the interesting bits from shell history
hledger library, program, test and benchmark: Command-line interface for the hledger accounting system
hledger-diff program: Compares the transactions in two ledger files.
hledger-flow library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-iadd library, program and test: A terminal UI as drop-in replacement for hledger add
hledger-makeitso library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-stockquotes library, program and test: Generate HLedger Price Directives From Daily Stock Quotes.
hledger-ui program: Curses-style terminal interface for the hledger accounting system
hranker program: Basic utility for ranking a list of items
hscrtmpl program: Haskell shell script template
hscurses-fish-ex program: hscurses swimming fish example
hskeleton library: Skeleton for new Haskell programs
hspresent library and program: A terminal presentation tool
hsprocess library, program and test: The Haskell Stream Processor command line utility
hunch program and test: CSS-like syntax for file system manipulation.
hunp program: Unpacker tool with DWIM
hunt-server-cli program: A Command line Interface for the Hunt server.
husky program: A simple command line calculator.
imj-measure-stdout program: An application to determine the maximum capacity of stdout buffer.
internetmarke program: Shell command for constructing custom stamps for German Post
ip6addr program: Commandline tool to deal with IPv6 address text representations
itemfield library, programs and tests: A brick Widget for selectable summary of many elements on a terminal
matchers library: Text matchers
mbox-utility program: List contents of an mbox file containing e-mails
mdo program: Command-line tool to run a command on each of the items.
misfortune library and programs: fortune-mod clone
multiarg library, programs and test: Command lines for options that take multiple arguments
no-buffering-workaround library: Workaround for GHC bug #2189.
only program: A grep-like tool for filtering on words or lines.
opn program: Open files or URLs using associated programs.
options library and test: A powerful and easy-to-use command-line option parser.
options-time library and test: Command-line option types for dates and times.
parse-help library and test: generate command line arguments from a --help output
parseargs library, program and test: Parse command-line arguments
pasty program: A simple command line pasting utility
pb program: pastebin command line application
penny library, programs and test: Extensible double-entry accounting system
penny-bin programs: Deprecated - use penny package instead
penny-lib programs: Deprecated - use penny package instead
photoname program and test: Rename photo image files based on EXIF shoot date
print-console-colors library and program: Print all ANSI console colors
pwstore-cli program and test: Command line interface for the pwstore library
qhs program and test: Command line tool qhs, SQL queries on CSV and TSV files.
readline library: An interface to the GNU readline library
runghc program: runghc replacement for fast repeated runs
shell-utility library: Utility functions for writing command-line programs
spelling-suggest library and programs: Spelling suggestion tool with library and command-line interfaces.
strongswan-sql library, program and test: Interface library for strongSwan SQL backend
structured-cli library and program: Application library for building interactive console CLIs
termplot program: Plot time series in your terminal using commands stdout
themplate program: Project templating tool
thimk programs: Command-line spelling word suggestion tool
timecalc program
tkhs program and test: Simple Presentation Utility
toilet program: Manage the toilet queue at the IMO
txt-sushi library and programs: The SQL link in your *NIX chain
uniq-deep program: uniq-deep
Win32-console library: Binding to the Win32 console API
ztail program: Multi-file, colored, filtered log tailer.

Constraint

constraint library: Reified constraints

Constraints

cluss library: simple alternative to type classes
constraints library and test: Constraint manipulation
constraints-deriving library, program and test: Manipulating constraints and deriving class instances programmatically.
constraints-emerge library and test: Defer instance lookups until runtime
constraints-extras library and program: Utility package for constraints
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
exists library: Existential datatypes holding evidence of constraints
ffunctor library and test: FFunctor typeclass
ifscs library and test: An inductive-form set constraint solver
mios library, programs and test: A Minisat-based CDCL SAT solver in Haskell
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
superconstraints library: Access an instance's constraints
Top library and program: Constraint solving framework employed by the Helium Compiler.
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
trivial-constraint library: Constraints that any type, resp. no type fulfills
unconstrained library: Null constraint

Consul

boots-cloud library: Factory for quickly building a microservice

Containers

expiring-containers library and test: Expiring containers
focus library and test: A general abstraction for manipulating elements of container data structures
int-multimap library and test: A data structure that associates each Int key with a set of values
keys library: Keyed functors and containers
mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
total-maps library: Dense and sparse total maps.

Contract

assert-failure library: Syntactic sugar improving 'assert' and 'error'

Contracts

eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding

Contravariant

co-log library, programs and test: Composable Contravariant Comonadic Logging Library
co-log-concurrent library: Asynchronous backend for co-log library
co-log-core library and test: Composable Contravariant Comonadic Logging Library
co-log-polysemy program: Composable Contravariant Comonadic Logging Library

Control

AAI library: Abstract Application Interface.
AbortT-monadstf library: Monads-tf instances for the AbortT monad transformer.
AbortT-mtl library: mtl instances for the AbortT monad transformer
AbortT-transformers library and test: A monad and monadic transformer providing "abort" functionality
abstract-par library: Type classes generalizing the functionality of the 'monad-par' library.
acme-iot library: IO monad transformer
action-permutations library: Execute a set of actions (e.g. parsers) in each possible order
Adaptive-Blaisorblade library and program: Library for incremental computing.
allocated-processor library: Functional combinators for monadic actions that require allocation and de-allocation
alternative-extra library: Extra utilities for alternatives
alternators library: Handy functions when using transformers.
annihilator library: Semigroups with annihilators and utility functions
ap-normalize library and tests: Self-normalizing applicative expressions
apart library, program and test: Get all your structure and rip it apart.
apecs library, test and benchmark: Fast Entity-Component-System library for game programming
apecs-stm library: STM stores for apecs
applicative-extras library: Instances for Applicative
applicative-fail library and test: Applicative functor and monad which collects all your fails
applicative-splice library: Write applicative programs in direct style (generalizes idiom brackets).
arity-generic-liftA library and test: Provides an arity-generic version of the liftA2, liftA3... liftAn functions.
arrow-extras library: Extra functions for Control.Arrow
arrow-improve library: Improved arrows.
arrow-list library: List arrows for Haskell.
arrowapply-utils library: Utilities for working with ArrowApply instances more naturally
arrows library: Arrow classes and transformers
artery library: A simple, arrow-based reactive programming
assert library and test: Helpers for Control.Exception.assert
assert-failure library: Syntactic sugar improving 'assert' and 'error'
async-refresh library and test: Package implementing core logic for refreshing of expiring data.
async-refresh-tokens library and test: Package implementing core logic for refreshing of expiring access tokens
asynchronous-exceptions library: Distinguish between synchronous and asynchronous exceptions
atl library: Arrow Transformer Library
attoparsec-trans library: Interleaved effects for attoparsec parsers
auto library: Denotative, locally stateful programming DSL & platform
auto-update library and test: Efficiently run periodic, on-demand actions
backtracking library and test: A backtracking monad
backtracking-exceptions library: A monad transformer for backtracking exceptions
backward-state library: A state monad that runs the state in reverse through the computation
barrier-monad library: Implementation of barrier monad, can use custom front/back type
basic-prelude library: An enhanced core prelude; a common foundation for alternate preludes.
billeksah-main program: Leksah plugin base
billeksah-main-static program: Leksah plugin base
billeksah-services library: Leksah library
boolean-like library: ...
break library: Break from a loop
bytestring-progress library: A library for tracking the consumption of a lazy ByteString
bytestring-rematch library and test: Rematch support for ByteString
can-i-haz library and test: Generic implementation of the Has and CoHas patterns
capability library and test: Extensional capabilities and deriving combinators
capataz library and test: OTP-like supervision trees in Haskell
caps library and test: Monadic capabilities with late binding
cas-hashable library: A hashing class for content-addressed storage
cas-hashable-s3 library: ContentHashable instances for S3 objects
cas-store library and test: A content-addressed storage
Cascade library: Playing with reified categorical composition
Catana library: A monad for complex manipulation of a stream.
catch-fd library: MonadThrow and MonadCatch, using functional dependencies
categories library: Categories
category library: Categorical types and classes
category-extras library: A meta-package documenting various packages inspired by category theory
CC-delcont library: Delimited continuations and dynamically scoped variables
CC-delcont-alt library and test: Three new monad transformers for multi-prompt delimited control
CC-delcont-cxe library: A monad transformers for multi-prompt delimited control
CC-delcont-exc library: A monad transformers for multi-prompt delimited control
CC-delcont-ref library: A monad transformers for multi-prompt delimited control using refercence cells
CC-delcont-ref-tf library: A monad transformers for multi-prompt delimited control using refercence cells
cflp library: Constraint Functional-Logic Programming in Haskell
ChannelT library: Generalized stream processors
chr-core library: Constraint Handling Rules
churros library and test: Channel/Arrow based streaming computation library.
classy-parallel library: Fork of the monad-parallel package using monad-control
classy-prelude library and test: A typeclass-based Prelude.
classy-prelude-conduit library and test: classy-prelude together with conduit functions
classy-prelude-yesod library: Provide a classy prelude including common Yesod functionality.
ClassyPrelude library: Prelude replacement using classes instead of concrete types where reasonable
Clean library: A light, clean and powerful utility library
cloud-haskell library: The Cloud Haskell Application Platform
codecov-haskell library, programs and test: Codecov.io support for Haskell.
coercible-utils library, test and benchmark: Utility functions for Coercible types
commandert library and test: A monad for commanders
comonad library: Comonads
comonad-extras library: Exotic comonad transformers
comonad-random library: Comonadic interface for random values
comonad-transformers library: This package has been merged into comonad 4.0
comonads-fd library: This package has been merged into comonad 4.0
ComonadSheet library: A library for expressing spreadsheet-like computations as the fixed-points of comonads.
Compactable library: A generalization for containers that can be stripped of Nothing
compactable library: A typeclass for structures which can be catMaybed, filtered, and partitioned.
composition-prelude library: Higher-order function combinators
computations library: Advanced notions of computation
concatenative library: A library for postfix control flow.
concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
concurrent-state library and program: MTL-like library using TVars
Concurrential library: Mix concurrent and sequential computation
cond library: Basic conditional and boolean operators with monadic variants.
conduino library: Lightweight composable continuation-based stream processors
Configurable library: Declare types as Configurable then specialize them all in one place
conkin library and tests: Tools for functors from Hask^k to Hask
constrained-categories library: Constrained clones of the category-theory type classes, using ConstraintKinds.
constrained-monads library, test and benchmark: Typeclasses and instances for monads with constraints.
constrained-normal library: Normalised Deep Embeddings for Constrained Type-Class Instances
constraint-manip library: Some conviencience type functions for manipulating constraints.
ConstraintKinds library: Repackages standard type classes with the ConstraintKinds extension
constrictor library: strict versions of many things in base
ContArrow library: Control.Arrow.Transformer.Cont
continue library: Monads with suspension and arbitrary-spot reentry
contravariant library: Contravariant functors
contravariant-extras library: Extras for the "contravariant" package
control library: Class of monad transformers which control operations can be lifted thru
control-bool library: Useful combinators for boolean expressions
control-dotdotdot library: Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`.
control-dsl library and test: An alternative to monads in do-notation
Control-Engine library: A parallel producer/consumer engine (thread pool)
control-event library and tests: Event scheduling system.
control-invariants library: Invariants and contract monitoring
control-iso library: A typeclass for type isomorphisms
control-monad-exception library: Explicitly typed, checked exceptions with stack traces
control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
control-monad-failure library: A class for monads which can fail with an error. (deprecated)
control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
control-monad-free library: Free monads and monad transformers
control-monad-loop library: Simple monad transformer for imperative-style loops
Control-Monad-MultiPass library and test: A Library for Writing Multi-Pass Algorithms.
control-monad-omega library: A breadth-first list monad.
control-monad-queue library: Reusable corecursive queues, via continuations.
Control-Monad-ST2 library and test: A variation on the ST monad with two type parameters.
control-timeout library: Timeout handling
contstuff library: Fast, easy to use CPS-based monad transformers
contstuff-monads-tf library: ContStuff instances for monads-tf transformers (deprecated)
contstuff-transformers library: Deprecated interface between contstuff 0.7.0 and the transformers package
conversion library: Universal converter between values of different types
conversion-bytestring library: "Conversion" instances for the "bytestring" library
conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
conversion-text library: "Conversion" instances for the "text" library
corecursive-main library, program and test: Write your main like it can call itself back.
Coroutine library: Type-safe coroutines using lightweight session types.
coroutine-object library: Object-oriented programming realization using coroutine
coverage library and test: Exhaustivity Checking Library
cr program: Code review tool
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
custom-prelude library: An enhanced prelude, serving as a foundation for my projects
daemons library, programs and test: Daemons in Haskell made fun and easy
data-fresh library: Interface and functor transformers for fresh values
data-lens library: Used to be Haskell 98 Lenses
data-lens-fd library: Lenses
data-lens-ixset library and test: A Lens for IxSet
decepticons library: The categorical dual of transformers.
deep-transformations library and test: Deep natural and unnatural tree transformations, including attribute grammars
DeepArrow library: Arrows for "deep application"
deepcontrol library and tests: ...
deepseq library and test: Deep evaluation of data structures
deepseq-bounded library and test: Bounded deepseq, including support for generic deriving
deepseq-generics library and test: GHC.Generics-based Control.DeepSeq.rnf implementation
deepseq-instances library: Candidate NFData Instances for Types in base
deepseq-magic library: Deep evaluation of data structures without NFData
deepseq-th library and test: Template Haskell based deriver for optimised NFData instances
demarcate library and test: Demarcating transformed monad.
dep-t library and tests: Reader-like monad transformer for dependency injection.
dep-t-advice library, tests and benchmark: Giving good advice to functions in a DepT environment.
despair library: Despair
disposable library: Allows storing different resource-releasing actions together.
distributed-closure library, program and test: Serializable closures for distributed programming.
distributed-fork library and test: Like 'forkIO', but uses remote machines instead of local threads.
distributed-fork-aws-lambda library and test: AWS Lambda backend for distributed-fork.
distributed-process library and benchmarks: Cloud Haskell: Erlang-style concurrency in Haskell
distributed-process-async library and test: Cloud Haskell Async API
distributed-process-azure library and programs: Microsoft Azure backend for Cloud Haskell
distributed-process-client-server library and tests: The Cloud Haskell Application Platform
distributed-process-execution library and tests: Execution Framework for The Cloud Haskell Application Platform
distributed-process-extras library and tests: Cloud Haskell Extras
distributed-process-fsm library and test: The Cloud Haskell implementation of Erlang/OTP gen_statem
distributed-process-lifted library and test: monad-control style typeclass and transformer instances for Process monad.
distributed-process-monad-control library: Orphan instances for MonadBase and MonadBaseControl.
distributed-process-platform library, program and tests: The Cloud Haskell Application Platform
distributed-process-registry library and test: Cloud Haskell Extended Process Registry
distributed-process-simplelocalnet library and program: Simple zero-configuration backend for Cloud Haskell
distributed-process-supervisor library and tests: Supervisors for The Cloud Haskell Application Platform
distributed-process-systest library: Cloud Haskell Test Support
distributed-process-task library and test: Task Framework for The Cloud Haskell Application Platform
distributed-process-tests library and tests: Tests and test support tools for distributed-process.
distributed-process-zookeeper library, program and test: A Zookeeper back-end for Cloud Haskell.
distributed-static library: Compositional, type-safe, polymorphic static values and closures
do-notation-dsl library and test: An alternative to monads
drinkery library: Boozy streaming library
edenmodules library: Semi-explicit parallel programming library
effect-handlers library, test and benchmark: ...
effect-monad library: ...
effect-stack library: Reducing the pain of transformer stacks with duplicated effects
effects library: Computational Effects
effects-parser library: Parser Effect for the Control.Effects Library
effet library and test: An Effect System based on Type Classes
effin library: A Typeable-free implementation of extensible effects
either library and test: Combinators for working with sums
EitherT library: EitherT monad transformer
elevator library: Immediately lifts to a desired level
elision library and program: Arrows with holes.
Empty library: A type class for empty containers
enclosed-exceptions library and test: Catching all exceptions from within an enclosed computation
enum-text-rio library and program: Making fmt available with rio
error-context library and test: Provides API for enriching errors with contexts
error-continuations library: Error Continuations
error-list library: A useful type for collecting error messages.
errorcall-eq-instance library and test: An orphan Eq instance for ErrorCall
errors library: Simplified error-handling
errors-ext library and test: `bracket`-like functions for `ExceptT` over `IO` monad.
Etage library: A general data-flow framework
eternal library: everything breaking the Fairbairn threshold
ether library, test and benchmark: Monad transformers and classes
eveff library: Efficient effect handlers based on evidence translation.
event-driven library: library for event driven programming
event-handlers library: Event handlers
event-monad library: Event-graph simulation monad transformer
event-transformer library, program and test: Initial project template from stack
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
exceptional library: Essentially the Maybe type with error messages.
exceptions library and test: Extensible optionally-pure exceptions
exhaustive library: ...
exitcode library and test: Monad transformer for exit codes
explicit-exception library and programs: Exceptions which are explicit in the type signature.
explicit-sharing library: Explicit Sharing of Monadic Effects
extensible-effects library, test and benchmark: An Alternative to Monad Transformers
extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
extensible-exceptions library: Extensible exceptions
failable library: A 'Failable' error monad class to unify failure across monads that can fail
failure library: A simple type class for success/failure computations. (deprecated)
FailureT library: Failure Monad Transformer
FastPush library: A monad and monad transformer for pushing things onto a stack very fast.
feature-flags library: A simple library for dynamically enabling and disabling functionality.
fmt-for-rio library: Adaptor for getting fmt to work with rio
fold-debounce library and tests: Fold multiple events that happen in a given period of time.
foldl library, test and benchmarks: Composable, streaming, and efficient left folds
foldl-exceptions library and test: Exception handling with FoldM
foldl-incremental library, test and benchmark: incremental folds
foldl-transduce library, tests and benchmark: Transducers for foldl folds.
foldl-transduce-attoparsec library and tests: Attoparsec and foldl-transduce integration.
for-free library: Functor, Monad, MonadPlus, etc for free
forbidden-fruit library and test: A library accelerates imperative style programming.
forest library: Tree and Forest types
ForkableT library: Forkable monad transformers
free library: Monads for free
free-algebras library and test: Free algebras
free-categories library: free categories
free-category library, test and benchmark: efficient data types for free categories and arrows
free-er library and program: An extensible effects library
free-operational library and test: Operational Applicative, Alternative, Monad and MonadPlus from free types.
free-vl library, program and test: van Laarhoven encoded Free Monad with Extensible Effects
freer library, program, test and benchmark: Implementation of the Freer Monad
freer-effects library, program, tests and benchmark: Implementation of effect system for Haskell.
freer-simple library, program, test and benchmark: Implementation of a friendly effect system for Haskell.
freer-simple-catching library and test: Checked runtime exceptions with freer-simple
freer-simple-http library and test: Make HTTP requests with freer-simple!
freer-simple-profiling library and test: Automatic profling of freer-simple programs
freer-simple-random library and test: Random number generators using freer-simple
freer-simple-time library and test: freer-simple interface to IO based time functions
from-sum library and test: Combinators for working with Maybe and Either
frpnow library: Principled practical FRP
frpnow-gloss library: Program awesome stuff with Gloss and frpnow!
frpnow-gtk library: Program GUIs with GTK and frpnow!
frpnow-vty library and program: Program terminal applications with vty and frpnow!
fsharp library: some F# operators, high priority pipes
full-sessions library: a monad for protocol-typed network programming
function-combine library: Combining functions
functor library: Functors
functor-apply library: This package has been subsumed by semigroupoids
functors library: (.:) and friends, syntax for Functor and Applicative.
funflow library, program and tests: Workflows with arrows
fused-effects library, tests and benchmark: A fast, flexible, fused effect system.
fused-effects-exceptions library and tests: Handle exceptions thrown in IO with fused-effects.
fused-effects-lens library and test: Monadic lens combinators for fused-effects.
fused-effects-mwc-random library, test and benchmark: High-quality random number generation as an effect.
fused-effects-optics library: Bridge between the optics and fused-effects ecosystems.
fused-effects-random library: Random number generation for fused-effects.
fused-effects-resumable library: Resumable exceptions for the fused-effects ecosystem.
fused-effects-squeal library: A fused-effects adapter for squeal-postgresql.
fused-effects-th library and test: Template Haskell helpers for fused-effects.
future-resource library: realtime resource handling with manual concurrency
gang-of-threads library: Non-deterministic parallelism with bags
garlic-bread library and test: A monad transformer for keeping track of where you've come from.
gas library: Limit how many steps a program may take.
general-prelude library: Prelude replacement using generalized type classes where possible
generator library: Python-generators notation for creation of monadic lists
generators library: Actually useful monadic random value generators.
generic-deepseq library: Generic deep evaluation of data structures
Get library and test: get stuff out of stuff
ghc-call-stack-extras library: Extra utilities for HasCallStack
gooey library: Graphical user interfaces that are renderable, ...
GotoT-transformers library: A monad and monadic transformer providing "goto" functionality
grab library, test and benchmarks: Applicative non-linear consumption
graphted library: Graph indexed monads.
groupoids library: This package has been absorbed into semigroupoids 4.0
hasim library: Process-Based Discrete Event Simulation library
hask library: Categories
haskell-cnc library and program: Library for parallel programming in the Intel Concurrent Collections paradigm.
hcron library: A simple job scheduler, which just runs some IO action at a given time.
hdph library and programs: Haskell distributed parallel Haskell
hdph-closure library: Explicit closures in Haskell distributed parallel Haskell
hierarchical-env library and test: hierarchical environments for dependency injection
hmk library and program: A make alternative based on Plan9's mk.
hoist-error library: Some convenience facilities for hoisting errors into a monad
hpc library: Code Coverage Library for Haskell
hpc-coveralls library, programs and test: Coveralls.io support for Haskell.
hpc-lcov library, program and test: Convert HPC output into LCOV format
hreader library and test: Generalization of MonadReader and ReaderT using hset
hs-di library, program and test: Dependency Injection library for Haskell
hspec-monad-control library: Orphan instances of MonadBase and MonadBaseControl for SpecM
hsPID library and test: PID control loop
hyperfunctions library: Hyperfunctions
if library: (?) and (?>) conditional operator
ifcxt library and test: put if statements within type constraints
IfElse library: Anaphoric and miscellaneous useful control-flow
ImperativeHaskell library: A library for writing Imperative style haskell.
implicit-logging library: A logging framework built around implicit parameters.
in-other-words library and test: A higher-order effect system where the sky's the limit
index-core library: Indexed Types
indexed library: Haskell98 indexed functors, monads, comonads
indexed-extras library: Indexed functors, monads and comonads that require extensions to Haskell98
indexed-free library: indexed monads for free
indextype library and test: A series of type families and constraints for "indexable" types.
InfixApplicative library: liftA2 for infix operators.
inject-function library: Monadic functions with injected parameters.
instance-control library: Controls how the compiler searches for instances using type families.
interchangeable library: A type class for interchangeable data.
interleave library: Combinators for supporting interleaving of different behaviours
interruptible library and test: Monad transformers that can be run and resumed later, conserving their context.
interspersed library: An abstraction over interspersing monadic actions
invariant library and test: Haskell98 invariant functors
invertible library and test: bidirectional arrows, bijective functions, and invariant functors
invertible-hlist library: invertible functions and instances for HList
io-choice library and test: Choice for IO and lifted IO
io-reactive library and program: An API for generating TIMBER style reactive objects.
io-region library and test: Exception safe resource management with dynamic regions
iotransaction library: Supports the automatic undoing of IO operations when an exception is thrown.
ixmonad library: Embeds effect systems into Haskell using parameteric effect monads
joint library: Trying to compose non-composable
json-tracer library and tests: A polymorphic, type-safe, json-structured tracing library
JuicyPixels-util library: Convert JuicyPixel images into RGBA format, flip, trim and so on
Kleislify library: Variants of Control.Arrow functions, specialised to kleislis.
Kriens library: Category for Continuation Passing Style
lambda-devs library, program and test: a Paralell-DEVS implementaion based on distributed-process
lawless-concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
lax library: Lax arrows
layers library: Modular type class machinery for monad transformer stacks.
lazy library: Explicit laziness for Haskell
lazy-priority-queue library, program and test: Lazy-Spined Monadic Priority Queues
lazyio library and program: Run IO actions lazily while respecting their order
lens-filesystem library and test: Lens interface for your filesystem; still a bit experimental
lens-misc library: Miscellaneous lens utilities.
lens-tutorial library and test: Tutorial for the lens library
lensref library and test: References which can be joined and on which lenses can be applied
lenz-mtl library: mtl operations with Van Laarhoven lenses
level-monad library: Non-Determinism Monad for Level-Wise Search
lifted-base library, test and benchmark: lifted IO operations from the base library
lifted-base-tf library, test and benchmark: lifted IO operations from the base library
List library: List monad transformer and class
list-t library and test: ListT done right
list-transformer library and test: List monad transformer
ListT library and test: List transformer
little-rio library: When you need just the RIO monad
local-search library: Generalised local search within Haskell, for applications in combinatorial optimisation.
log-effect library and program: An extensible log effect using extensible-effects
log-effect-syslog library: Syslog functions for log-effect
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
logicst library: Backtracking mutable references in the ST and IO monads
logict library, program and test: A backtracking logic-programming monad.
loop library, test and benchmarks: Fast loops (for when GHC can't optimize forM_)
loop-effin library: control-monad-loop port for effin
loop-while library: A monad transformer supporting various styles of while loop
loops library, test and benchmark: Fast imperative-style loops
machinecell library and tests: Arrow based stream transducers
machines library and benchmark: Networked stream transducers
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-bytestring library: ByteString support for machines
machines-encoding library: Transcode encodings with machines.
managed library: A monad for managed values
map-classes library: A set of classes and instances for working with key/value mappings.
map-reduce-folds library, tests and benchmark: foldl wrappers for map-reduce
MaybeT library: MaybeT monad transformer
MaybeT-monads-tf library: MaybeT monad transformer compatible with monads-tf (deprecated)
MaybeT-transformers library: MaybeT monad transformer using transformers instead of mtl.
mealstrom library and test: Manipulate FSMs and store them in PostgreSQL.
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
memo-ptr library: Pointer equality memoization
memoization-utils library and test: Utilities for memoizing functions
meta-par library: Provides the monad-par interface, but based on modular scheduler "mix-ins".
metaheuristics library: Generalised local search within Haskell, for applications in combinatorial optimisation.
method library and test: rebindable methods for improving testability
MHask library: The category of monads
micro-recursion-schemes library and test: Simple recursion schemes
midair library: Hot-swappable FRP
minioperational library: fast and simple operational monad
MissingM library and test: findM and other missing 'M's
mix-arrows library: Mixing effects of one arrow into another one
mmorph library: Monad morphisms
mmtl library: Modular Monad transformer library
mmtl-base library: MonadBase type-class for mmtl
modular-prelude library: A new Prelude featuring first class modules
modular-prelude-classy library: Reifying ClassyPrelude a la ModularPrelude
monad-abort-fd library: A better error monad transformer
monad-atom library: Monadically convert object to unique integers and back.
monad-atom-simple library: Monadically map objects to unique ints.
monad-batcher library: An applicative monad that batches commands for later more efficient execution
monad-bool library: This package has been removed.
monad-choice library: Monad, monad transformer, and typeclass representing choices.
monad-chronicle library: These as a transformer, ChronicleT
monad-classes library and test: more flexible mtl
monad-codec library: Monadic conversion between complex data structures and unique integers
monad-connect library: Transformer for TCP connection with TLS and SOCKS support
monad-control library: Lift control operations, like exception catching, through monad transformers
monad-control-aligned library: Just like monad-control, except less efficient, ...
monad-control-identity library: Stronger classes than monad-control
monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
monad-dijkstra library and tests: A monad transformer for weighted graph searches
monad-exception library: Exstensible monadic exceptions
monad-extras library: Extra utility functions for working with monads
monad-finally library: Guard monadic computations with cleanup actions
monad-fork library: Type class for monads which support a fork operation.
monad-hash library and test: Monad transformer for incremental hashing
monad-introspect library: A reader monad that gives the environment access to the entire transformer stack
monad-io-adapter library and test: Adapters between MonadIO and MonadBase IO.
monad-journal library: Pure logger typeclass and monad transformer
monad-levels library: Specific levels of monad transformers
monad-lgbt library and test: Monad transformers for combining local and global state.
monad-loops library and test: Monadic loops
monad-loops-stm library: Monadic loops for STM
monad-markov library: Markov process monad
monad-memo library, test and benchmark: Memoization monad transformer
monad-mersenne-random library: An efficient random generator monad, based on the Mersenne Twister
monad-open library: Open recursion for when you need it
monad-ox library: Monad for observation extraction
monad-par library and test: A library for parallel programming based on a monad
monad-par-extras library: Combinators and extra features for Par monads
monad-parallel library: Parallel execution of monadic computations
monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
monad-param library: Parameterized monads
monad-peel library and test: Lift control operations like exception catching through monad transformers
monad-products library: Monad products
monad-ran library: Fast monads and monad transformers
monad-resumption library: Resumption and reactive resumption monads for Haskell.
monad-skeleton library: Monads of program skeleta
monad-st library: Provides a MonadST class
monad-state library: Utility library for monads, particularly those involving state.
monad-ste library and test: ST monad with efficient explicit errors
monad-stm library: MonadSTM class analogous to MonadIO
monad-supply library: Stateful supply monad
monad-task library: A monad transformer that turns event processing into co-routine programming.
monad-time library and test: Type class for monads which carry the notion of the current time.
monad-timing library and tests: Monad transformer for recording timing events
monad-tx library: A transactional state monad.
monad-unlift library: Typeclasses for representing monad transformer unlifting
monad-unlift-ref library: Typeclasses for representing monad transformer unlifting
monad-validate library and test: A monad transformer for data validation.
monad-wrap library: Wrap functions such as catch around different monads
monadbi library: Extract underlying monads from monad transformers
MonadCatchIO-mtl library: Monad-transformer version of the Control.Exception module
MonadCatchIO-mtl-foreign library: Polymorphic combinators for working with foreign functions
MonadCatchIO-transformers library: Monad-transformer compatible version of the Control.Exception module
MonadCatchIO-transformers-foreign library: Polymorphic combinators for working with foreign functions
monadcryptorandom library: A monad for using CryptoRandomGen
monadfibre library: Monadic functions which provide Choice and Parallelism.
monadic-recursion-schemes library and test: Recursion Schemes for Monadic version.
monadiccp library and test: Constraint Programming
monadiccp-gecode library and test: Constraint Programming
monadio-unwrappable library: Reversibly allow monad transformer stacks to run in IO
monadLib-compose library: Arrow-like monad composition for monadLib.
monadlist library: Monadic versions of list functions
monadloc library: A class for monads which can keep a monadic call trace
monadloc-pp program: A preprocessor for generating monadic call traces
monadplus library: Haskell98 partial maps and filters over MonadPlus.
MonadPrompt library: MonadPrompt, implementation & examples
MonadRandom library: Random-number generation monad.
MonadRandomLazy library: Lazy monad for psuedo random-number generation.
monads-fd library: Monad classes, using functional dependencies
monads-tf library: Monad classes, using type families
MonadStack library: Generalizing lift to monad stacks
Monatron library: Monad transformer library with uniform liftings
Monatron-IO library: MonadIO instances for the Monatron transformers.
more-extensible-effects library: Initial project template from stack
morphisms library: It's all about functions
morphisms-functors library: Functors, theirs compositions and transformations
morphisms-functors-inventory library: Inventory is state and store
morphisms-objects library: Algebraic structures
motor library, program and test: Type-safe effectful state machines in Haskell
motor-diagrams library and test: Generate state diagrams from Motor FSM typeclasses
motor-reflection library and test: Reflect on Motor FSM typeclasses to obtain runtime representations
mtl library: Monad classes, using functional dependencies
mtl-evil-instances library: Instances for the mtl classes for all monad transformers.
mtl-extras library: Higher order versions of MTL classes
mtl-tf library: Monad Transformer Library with Type Families
mtl-unleashed library and test: MTL classes without the functional dependency
mtl-uplift library and test: Lift substacks of monad transformer stacks
mtlx library: Monad transformer library with type indexes, providing 'free' copies.
mtsl library: Reified monad transformer stacks
multipass library: Folding data with multiple named passes
multistate library, program and test: like mtl's ReaderT / WriterT / StateT, but more than one contained value/type.
mvc library: Model-view-controller
mvc-updates library: Concurrent and combinable updates
mzv library: Implementation of the "Monads, Zippers and Views" (Schrijvers and Oliveira, ICFP'11)
named library and test: Named parameters (keyword arguments) for Haskell
natural library and test: Natural number
natural-transformation library and test: A natural transformation package.
needle library: ASCII-fied arrow notation
newtype library: A typeclass and set of functions for working with newtypes.
newtype-deriving library: Instance derivers for newtype wrappers
newtype-generics library, test and benchmark: A typeclass and set of functions for working with newtypes
newtype-th library: A template haskell deriver to create Control.Newtype instances.
newtyper library: Extra functions for the Control.Newtype typeclass
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
nqe library and test: Concurrency library in the style of Erlang/OTP
Object library: Object oriented programming for haskell using multiparameter typeclasses.
objective library: Composable objects
observable library: Continuation patterns
op library and test: Common operators encouraging large-scale easy reading
open-signals library and test: A mechanism similar to checked exceptions that integrates with MTL and transformer stacks
operational library and program: Implementation of difficult monads made easy with operational semantics.
operational-class library: MonadProgram typeclass for the operational package
overload library: Finite overloading
pandora library: A box of patterns and paradigms
parallel library: Parallel programming library
parallel-tree-search library: Parallel Tree Search
parameterized library and test: Parameterized/indexed monoids and monads using only a single parameter type variable.
partial library: A nullary type class for partial functions
partial-isomorphisms library: Partial isomorphisms.
partial-lens library: Haskell 98 Partial Lenses
perm library and test: permutation Applicative and Monad with many mtl instances
PermuteEffects library: Permutations of effectful computations
phantom-state library and benchmark: Phantom State Transformer. Like State Monad, but without values.
pipe-enumerator library: A bidirectional bridge between pipes and iteratees
piped library, program and test: Conduit with a smaller core
pipeline library: Continuation patterns
pipes library, test and benchmarks: Compositional pipelines
pipes-async library and test: A higher-level interface to using concurrency with pipes
pipes-attoparsec-streaming library and program: Streaming parsing in the pipes-core framework with Attoparsec.
pipes-break library and test: Pipes to group by any delimiter (such as lines with carriage returns)
pipes-bytestring library: ByteString support for pipes
pipes-category library and test: Allows instances for Category, Arrow and ArrowChoice for Pipes.
pipes-cellular library: Pipes-based combinators for cellular data processing
pipes-cellular-csv library: Efficient pipes-based cellular CSV codec
pipes-concurrency library and test: Concurrency for the pipes ecosystem
pipes-conduit library: Conduit adapters
pipes-core library: Compositional pipelines
pipes-errors library: Integration between pipes and errors
pipes-extra library, programs, test and benchmarks: Various basic utilities for Pipes.
pipes-extras library and test: Extra utilities for pipes
pipes-fluid library and test: Reactively combines Producers so that a value is yielded as soon as possible.
pipes-group library and test: Group streams into substreams
pipes-io library and test: Stateful IO streams based on pipes
pipes-lines library and test: Pipes for grouping by lines with carriage returns.
pipes-misc library and test: Miscellaneous utilities for pipes, required by glazier-tutorial
pipes-parse library: Parsing infrastructure for the pipes ecosystem
pipes-random library: Producers for handling randomness.
pipes-rt library and program: A few pipes to control the timing of yields
pipes-safe library: Safety for the pipes ecosystem
pipes-transduce library and tests: Interfacing pipes with foldl folds.
pipes-vector library: Various proxies for streaming data into vectors
pipes-zeromq4 library and programs: Pipes integration for ZeroMQ messaging
plan-applicative library and tests: Applicative/Arrow for resource estimation and progress tracking.
poly-cont library: Poly-kinded continuations
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
porpoise library and program: A minimalist HTTP server framework written on top of wai
ports library: The Haskell Ports Library
prelude-plus program: Prelude for rest of us
ProbabilityMonads library: Probability distribution monads.
product-profunctors library, test and benchmark: product-profunctors
profunctor-extras library: This package has been absorbed into profunctors 4.0
profunctor-monad library and test: Monadic bidirectional programming
profunctors library: Profunctors
progress-reporting library: Functionality for reporting function progress.
prologue library: Better, more general Prelude exporting common utilities.
prompt library: Monad (and transformer) for deferred-effect pure prompt-response queries
prospect library and test: Explore continuations with trepidation
protocol library: Model distributed system as type-level multi-party protocol
quantum-arrow library: An embedding of quantum computation as a Haskell arrow
quiver library: Quiver finite stream processing library
quiver-binary library and test: Binary serialisation support for Quivers
quiver-bytestring library: Quiver combinators for bytestring streaming
quiver-cell library: Quiver combinators for cellular data processing
quiver-csv library: Quiver combinators for cellular CSV data processing
quiver-enumerator library: Bridge between Quiver and Iteratee paradigms
quiver-groups library and test: Group and chunk values within a Quiver
quiver-http library: Adapter to stream over HTTP(s) with quiver
quiver-instances library: Extra instances for Quiver
quiver-interleave library and test: Interleave values from multiple Quivers
quiver-sort library and test: Sort the values in a quiver
random-eff library: A simple random generator library for extensible-effects
random-effin library: A simple random generator library for effin
rank2classes library and tests: standard type constructor class hierarchy, only with methods of rank 2 types
rate-limit library: A basic library for rate-limiting IO actions.
reactive-haskell library: minimal fork of io-reactive
reactive-io library: IO-oriented FRP library
reader-soup library: Vinyl-based reader-like monad composition
reasonable-lens library: Lens implementation. It is more small but adequately.
reasonable-operational library: Just size Operational Monad implementation.
record library: Anonymous records
recursion : A recursion schemes library for Haskell.
recursion-schemes library and test: Representing common recursion patterns as higher-order functions
recursion-schemes-ext library, test and benchmark: Amateur addenda to recursion-schemes
ref-fd library: A type class for monads with references using functional dependencies.
ref-mtl library: A type class for monads with references compatible with the mtl2 library.
ref-tf library: A type class for monads with references using type families.
reference library: A class for references in Haskell
references library and test: Selectors for reading and updating data.
regions library: Provides the region monad for safely opening and working with scarce resources.
regions-monadsfd library: Monads-fd instances for the RegionT monad transformer
regions-monadstf library: Monads-tf instances for the RegionT monad transformer
regions-mtl library: mtl instances for the RegionT monad transformer
registry library and test: data structure for assembling components
registry-hedgehog library and test: utilities to work with Hedgehog generators and `registry`
rematch library and test: A simple api for matchers
rematch-text library and test: `rematch` matchers for Data.Text
remote-monad library and tests: An parametrizable Remote Monad, and parametrizable Applicative Functor
ReplicateEffects library: Composable replication schemes of applicative functors
representable-profunctors library: This package has been absorbed into profunctor-extras.
request-monad library: A transformer for generic requests
resource-effect library and test: A port of the package 'resourcet' for extensible effects.
resource-pool-monad library: A monadic interface for resource-pool
resource-simple library: Allocate resources which are guaranteed to be released.
restartable library: Minimal live coding library for model-view-event-update applications.
resumable-exceptions library: A monad transformer for resumable exceptions
retry library and test: Retry combinators for monadic actions that may fail
rev-state library and test: Reverse State monad transformer
rex library: A quasi-quoter for typeful results of regex captures.
RichConditional library: Tiny library to replace classic if/else
rio library and test: A standard library for Haskell
rio-orphans library and test: Orphan instances for the RIO type in the rio package
rmonad library and test: Restricted monad library
RoyalMonad library: All hail the Royal Monad!
safe-buffer-monad library and test: A monadic buffer resilient to exceptions
safe-exceptions library and test: Safe, consistent, and easy exception handling
safe-exceptions-checked library and test: Safe, checked exceptions
scc library, program and test: Streaming component combinators
schedule library and tests: Pure deterministic scheduled computations
schonfinkeling library: Transformation of n-ary functions to unary functions
SciFlow library: Scientific workflow management system
SciFlow-drmaa library: Scientific workflow management system
selective library and test: Selective applicative functors
semi-iso library: Weakened partial isomorphisms, reversible computations.
semigroupoid-extras library: Semigroupoids that depend on PolyKinds
semigroupoids library: Semigroupoids: Category sans id
sessions library: Session Types for Haskell
sessiontypes library, program and tests: Session types library
sessiontypes-distributed library and tests: Session types distributed
shade library: A control structure used to combine heterogenous types with delayed effects.
shared-fields library and test: a tiny library for using shared lens fields
shortcircuit library: Short-circuit values and expressions.
simple-effects library, test and benchmark: A simple effect system that integrates with MTL
simple-observer library: The Observer pattern
simple-sessions library: A simple implementation of session types
sink library: An alternative to lazy I/O that doesn't conflate execution with evaluation
skulk library and test: Eclectic collection of utility functions
sousit library and test: Source/Sink/Transform: An alternative to lazy IO and iteratees.
spartacon program: A unix-style (read from stdin, write to stdout) global hotkey daemon
spawn library: Tiny library for concurrent computations
speculation-transformers library: Merged into 'speculation'. Use that instead.
stack-hpc-coveralls library, program and tests: Initial project template from stack
state-bag library and test: Monad transformers for holding bags of state.
state-plus library and test: MonadPlus for StateT
statestack library: Simple State-like monad transformer with saveable and restorable state
stateWriter library, tests and benchmark: A faster variant of the RWS monad transformers.
static library and tests: Type-safe and interoperable static values and closures
static-closure library: Serialisable static pointers to functions
stm-actor library and test: A simplistic actor model based on STM
stm-incremental library and test: A library for constructing incremental computations
stm-supply library and test: STM wrapper around Control.Concurrent.Supply.
stopwatch library and test: A simple stopwatch utility
stream-monad library and program: Simple, Fair and Terminating Backtracking Monad
streaming-eversion library and tests: Translate pull-based stream folds into push-based iteratees.
streamly library, programs and tests: Beautiful Streaming, Concurrent and Reactive Composition
streamproc library: Stream Processer Arrow
streams library: Various Haskell 2010 stream comonads
strict-concurrency library: Strict concurrency abstractions
strict-identity library: Strict Identity Monad, handy for writing fast code!
strict-writer library and test: A stricter writer, which uses StateT in order to avoid space leaks.
strictly library: Combinators for strictifying functions
stt library and test: A monad transformer version of the ST monad
sub-state library and test: Get the total, put a single element
subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
successors library: An applicative functor to manage successors
supervisor library: Control an internal monad execution for trace generation, backtrakcking, ...
sweet-egison library, test and benchmarks: Shallow embedding implementation of non-linear pattern matching
synchronous-channels library: Synchronous communication channels
tagged-exception-core library: Reflect exceptions using phantom types.
tagged-identity library: Trivial monad transformer that allows identical monad stacks have different types
tagshare library: TagShare - explicit sharing with tags
Tainted library: Tainted type, and associated operations
takahashi library: create slide for presentation.
tardis library and test: Bidirectional state monad transformer
tehepero library: Prettier error
telega library: Telegram Bot API binding
THEff library: TH implementation of effects.
threads-pool library: A library to operate with pool of haskell's IO threads
time-machine library and test: A library to mock the current time.
time-out library and test: Timers, timeouts, alarms, monadic wrappers
time-warp library, programs and test: Distributed systems execution emulation
timeout library and test: Generalized sleep and timeout functions
timeout-control library: Updatable timeouts as a Monad transformer
timers-tick library and test: tick based timers
to library and benchmark: Simple, safe, boring type conversions
tonalude library and tests: A standard library for Tonatona framework.
total library: Exhaustive pattern matching using lenses, traversals, and prisms
TotalMap library and test: A total map datatype
trace library: A monad transformer for tracing provenience of errors
transactional-events library: Transactional events, based on Concurrent ML semantics
transformers library: Concrete functor and monad transformers
transformers-abort library: Error and short-circuit monad transformers
transformers-base library: Lift computations from the bottom of a transformer stack
transformers-bifunctors library: Bifunctors over monad transformers.
transformers-compose library: Arrow-like / category-like composition for transformers.
transformers-continue library: Control flow data type and monad transformer.
transformers-convert library and test: Sensible conversions between some of the monad transformers
transformers-eff library and benchmark: An approach to managing composable effects, ala mtl/transformers/extensible-effects/Eff
transformers-free library: Free monad transformers
transformers-lift library: Ad-hoc type classes for lifting
transformers-runnable library: A unified interface for the run operation of monad transformers
transient library and test: composing programs with multithreading, events and distributed computing
transient-universe library, programs and test: fully composable remote execution for the creation of distributed systems
tree-monad library: Non-Determinism Monad for Tree Search
TreeT library: Transformer for Data.Tree
trivia library: The trivial monad and comonad
tubes library: Write stream processing computations with side effects in a series of tubes.
tuple-lenses library: Stock FieldN combos and generators
tweak library: A library for incremental computing
type-operators library: Various type-level operators
TypeCompose library: Type composition classes & instances
uberlast library: Generate overloaded lenses from plain data declaration
unexceptionalio library and test: IO without any non-error, synchronous exceptions
unexceptionalio-trans library: A wrapper around UnexceptionalIO using monad transformers
unlift library: Typeclass for monads that can be unlifted to arbitrary base monads
unliftio library, test and benchmark: The MonadUnliftIO typeclass for unlifting monads to IO (batteries included)
unliftio-core library: The MonadUnliftIO typeclass for unlifting monads to IO
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
unordered-containers-rematch library and test: Rematch support for unordered containers
unpack-funcs library: Monad transformers that mirror worker-wrapper transformations.
unsafe library: Unified interface to unsafe functions
unsequential library and test: An extension removing the sequentiality from monads
util-logict library, test and benchmark: See README for more info
uu-interleaved library: An interleaving combinator for use with applicative style implementations.
validationt library and test: Straightforward validation monad
var-monad library: The VarMonad typeclass, generalizing types of references.
variables library and test: Monads with variables, without deep magic
variadic library, test and benchmark: Abstractions for working with variadic functions
varying library, program, tests and benchmark: FRP through value streams and monadic splines.
vector-strategies library: A parallel evaluation strategy for boxed vectors
views library: Views allow you to run a State monad on part of a state.
vinyl-utils library: Utilities for vinyl
wai-control library: Run wai Applications in IO based monads
watchdog library: Simple control structure to re-try an action with exponential backoff
weighted library: Writer monad which uses semiring constraint
weighted-search library: A weighted nondeterministic search monad
wires library and programs: Functional reactive programming library
with library: Simple open product type
withdependencies library and test: Run computations that depend on one or more elements in a stream.
wl-pprint-extras library and test: A free monad based on the Wadler/Leijen pretty printer
wl-pprint-terminfo library: A color pretty printer with terminfo support
Workflow library: Workflow patterns over a monad for thread state logging & recovery
writer-cps-exceptions library: Control.Monad.Catch instances for the stricter CPS WriterT and RWST
writer-cps-full library: WriteT and RWST monad transformers (Reexport with all dependencies)
writer-cps-lens library: Lens instances for the stricter CPS WriterT and RWST
writer-cps-monads-tf library: MonadWriter orphan instances for writer-cps-transformers
writer-cps-morph library: MFunctor instance for CPS style WriterT and RWST
writer-cps-mtl library: MonadWriter orphan instances for writer-cps-transformers
writer-cps-transformers library: WriteT and RWST monad transformers
xml-html-conduit-lens library and tests: Optics for xml-conduit and html-conduit
zio library and test: App-centric Monad-transformer based on Scala ZIO (UIO + ReaderT + ExceptT).
zoom-refs library: Zoom (~ Functor) and pairing (~ Applicative) for mutable references.

Control Language

in-other-words-plugin library and test: Disambiguate obvious uses of effects when using in-other-words.

Control.Monad

script-monad library, program and test: Stack of error, reader, writer, state, and prompt monad transformers

Control.Parallel.Eden

edenskel library: Semi-explicit parallel programming skeleton library

Convenience

schedule-planner program: Find the ideal lesson layout

Conversion

conversion library: Universal converter between values of different types
conversion-bytestring library: "Conversion" instances for the "bytestring" library
conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
conversion-text library: "Conversion" instances for the "text" library
hsluv-haskell library and test: HSLuv conversion utility.
string-fromto library: Conversions between common string types, as well as Base16/Base32/Base64.

CouchDB

ez-couch library: A high level static library for working with CouchDB

CPP

preprocessor library and test: Remove cpp annotations to get the source ready for static analysis.

CRDT

crdt-event-fold library and test: Garbage collected event folding CRDT.

Criu

criu-rpc library: CRIU RPC client.
criu-rpc-types library: Criu RPC protocol buffer types.

Crosswords

hpuz library: Haskell bindings for libpuz

Crypto

BitStringRandomMonad library and test
cprng-aes-effect library: Run random effect using cprng-aes, a crypto pseudo number generator.
crypto-random-effect library: A random effect using crypto-random
crypto-rng library: Cryptographic random number generator.
cryptoconditions library and test: Interledger Crypto-Conditions
ecdsa library: Basic ECDSA signing implementation
keccak library, program, test and benchmark: cryptographic functions based on the sponge construction
lol library and test: A library for lattice cryptography.
lol-apps library: ...
lol-benches library: A library for benchmarking <https://hackage.haskell.org/package/lol lol>.
lol-cpp library, test and benchmarks: A fast C++ backend for <https://hackage.haskell.org/package/lol lol>.
lol-repa library, test and benchmark: A repa backend for <https://hackage.haskell.org/package/lol lol>.
lol-tests library and test: A library for testing <https://hackage.haskell.org/package/lol Λ ∘ λ>.
magic-wormhole library, program and test: Interact with Magic Wormhole
mcl library, test and benchmark: Bindings to mcl, a generic and fast pairing-based cryptography library
openssl-createkey library: Create OpenSSL keypairs.
pkcs7 library and test: PKCS #7 padding in Haskell
pvss program and test: Public Verifiable Secret Sharing
rfc1751 library and test: RFC-1751 library for Haskell
ripple library: Ripple payment system library
rlwe-challenges library and program: Ring-LWE/LWR challenges using Lol.
secp256k1 library and test: Bindings for secp256k1 library from Bitcoin Core
secp256k1-haskell library and test: Bindings for secp256k1
secp256k1-legacy library and test: fork of secp256k1
spake2 library, program and test: Implementation of the SPAKE2 Password-Authenticated Key Exchange algorithm
spritz library: An implementation of the Spritz RC4-like stream cipher in Haskell

Cryptocurrency

burnt-explorer program: List OP_RETURN cryptocurrency transaction outputs.

Cryptography

adler32 library and test: An implementation of Adler-32, supporting rolling checksum operation
AES library: Fast AES encryption/decryption for bytestrings
afis library and test: Anti-forensic Information Splitter
aos-signature library and test: An implementation of the AOS signatures
apache-md5 library, test and benchmark: Apache specific MD5 digest algorighm.
argon2 library and test: Memory-hard password hash and proof-of-work function
arithmetic-circuits library, tests and benchmark: Arithmetic circuits for zkSNARKs
bcrypt library: Haskell bindings to the bcrypt password hash
bip32 library and test: BIP-0032: Hierarchical Deterministic Wallets for Bitcoin and other cryptocurrencies
bitcoin-address library and test: Bitcoin address generation and rendering. Parsing coming soon.
bitcoin-hash library and test: Bitcoin hash primitives
bitcoin-hs library and test: Partial implementation of the Bitcoin protocol (as of 2013)
bitcoin-keys library and test: Bitcoin keys
blake2 library, tests and benchmark: A library providing BLAKE2
blake3 library and test: BLAKE3 hashing algorithm
blakesum library: The BLAKE SHA-3 candidate hashes, in Haskell
blakesum-demo program: The BLAKE SHA-3 candidate hashes, in Haskell
bulletproofs library, program, test and benchmark: Bulletproofs are short zero-knowledge proofs without a trusted setup.
cacophony library, program, tests and benchmark: A library implementing the Noise protocol.
cao program: CAO Compiler
cipher-aes library, test and benchmark: Fast AES cipher implementation with advanced mode of operations
cipher-aes128 library, program and benchmark: AES and common modes using AES-NI when available.
cipher-blowfish library, test and benchmark: Blowfish cipher
cipher-camellia library, test and benchmark: Camellia block cipher primitives
cipher-des library, test and benchmark: DES and 3DES primitives
cipher-rc4 library, test and benchmark: Fast RC4 cipher implementation
cipher-rc5 library: Pure RC5 implementation
commsec library: Provide communications security using symmetric ephemeral keys
cprng-aes library and benchmark: Crypto Pseudo Random Number Generator using AES in counter mode.
cpsa programs: Symbolic cryptographic protocol analyzer
crc16 library: Calculate the crc16-ccitt.
Crypto library and programs: Collects together existing Haskell cryptographic functions into a package
crypto-api library: A generic interface for cryptographic operations
crypto-api-tests library: A test framework and KATs for cryptographic operations.
crypto-cipher-benchmarks library: Generic cryptography cipher benchmarks
crypto-cipher-tests library and test: Generic cryptography cipher tests
crypto-cipher-types library: Generic cryptography cipher types
crypto-classical library and test: An educational tool for studying classical cryptography schemes.
crypto-conduit library and test: Conduit interface for cryptographic operations (from crypto-api).
crypto-enigma library, program and tests: An Enigma machine simulator with display.
crypto-keys-ssh library: Like crypto-pubkey-openssh but not dependent on any specific crypto library
crypto-multihash library, program and test: Multihash library on top of cryptonite crypto library
crypto-numbers library, test and benchmark: Cryptographic numbers: functions and algorithms
crypto-pubkey library, test and benchmark: Public Key cryptography
crypto-pubkey-openssh library and test: OpenSSH keys decoder/encoder
crypto-pubkey-types library: Generic cryptography Public keys algorithm types
crypto-random library: Simple cryptographic random related types
crypto-random-api library: Simple random generators API for cryptography related code
crypto-simple library and test: A simple high level encryption interface based on cryptonite
crypto-sodium library and test: Easy-and-safe-to-use high-level cryptography based on Sodium
crypto-token library: crypto tokens
crypto-totp library: Provides generation and verification services for time-based one-time keys.
cryptocipher library: Symmetrical block and stream ciphers.
cryptohash library, test and benchmarks: collection of crypto hashes, fast, pure and practical
cryptohash-conduit library: cryptohash conduit
cryptohash-cryptoapi library: Crypto-api interfaces for cryptohash
cryptohash-md5 library, test and benchmark: Fast, pure and practical MD5 implementation
cryptohash-sha1 library, test and benchmark: Fast, pure and practical SHA-1 implementation
cryptohash-sha256 library, program, test and benchmark: Fast, pure and practical SHA-256 implementation
cryptohash-sha512 library, test and benchmark: Fast, pure and practical SHA-512 implementation
cryptoids library: Reversable and secure encoding of object ids as a bytestring
cryptonite test and benchmark: Cryptography Primitives sink
cryptonite-conduit library and test: cryptonite conduit
cryptonite-openssl test: Crypto stuff using OpenSSL cryptographic library
cryptostore library and test: Serialization of cryptographic data types
data-dispersal library and test: Space-efficient and privacy-preserving data dispersal algorithms.
dice-entropy-conduit library and test: Cryptographically secure n-sided dice via rejection sampling
digest library: Various cryptographic hashes for bytestrings; CRC32 and Adler32 for now.
digest-pure library and test: Pure hash functions for bytestrings
digest-sig library: Signature for digest
DRBG library and test: Deterministic random bit generator (aka RNG, PRNG) based HMACs, Hashes, and Ciphers.
drunken-bishop library and program: An implementation of the Drunken Bishop visual fingerprinting algorithm
DSA library and test: Implementation of DSA, based on the description of FIPS 186-4
Dust-crypto library and test: Cryptographic operations
eccrypto library, test and benchmark: Elliptic Curve Cryptography for Haskell
eccrypto-ed25519-bindings library: provides "ed25519" API using "eccrypto"
ed25519 tests and benchmark: Ed25519 cryptographic signatures
ed25519-donna library: Haskell bindings to ed25519-donna (Elliptical Curve Signature Scheme)
elliptic-curve library, test and benchmark: Elliptic curve library
elocrypt library, program and tests: Generate easy-to-remember, hard-to-guess passwords
encryptable library and test: Typed encryption with persistent support
entropy library: A platform independent entropy source
fastpbkdf2 library, test and benchmark: Haskell bindings to the fastpbkdf2 C library
filepath-crypto library: Reversable and secure encoding of object ids as filepaths
fpe library and test: Format-preserving encryption.
galois-fft library, test and benchmark: FFTs over finite fields
galois-field library, test and benchmark: Galois field library
h-gpgme library and test: High Level Binding for GnuPG Made Easy (gpgme)
hashing library, program and test: A pure haskell library implements several hash algorithms.
haskdeep program: Computes and audits file hashes.
hecc library: Elliptic Curve Cryptography for Haskell
hF2 library: F(2^e) math for cryptography
hkdf library and test: Implementation of HKDF (RFC 5869)
hopenssl library and tests: FFI Bindings to OpenSSL's EVP Digest Interface
HsOpenSSL library and tests: Partial OpenSSL binding for Haskell
hspkcs11 library and test: Wrapper for PKCS #11 interface
intel-aes library: Hardware accelerated AES encryption and Random Number Generation.
jose library, program and test: Javascript Object Signing and Encryption and JSON Web Token library
jose-jwt tests and benchmark: JSON Object Signing and Encryption Library
jumpthefive library and program: an elementary symmetric chiffre for pragmatically protecting one's effects
keystore library and programs: Managing stores of secret things
Lazy-Pbkdf2 library, test and benchmark: Lazy PBKDF2 generator.
libsodium library and test: Low-level bindings to the libsodium C library
longshot library, program and test: Fast Brute-force search using parallelism
monad-hash library and test: Monad transformer for incremental hashing
monadcryptorandom library: A monad for using CryptoRandomGen
NaCl library and test: Easy-and-safe-to-use high-level Haskell bindings to NaCl
nettle library and tests: safe nettle binding
newhope library, programs and test: Library implementing the NewHope cryptographic key-exchange protocol
nonce library: Generate cryptographic nonces.
NTRU library: NTRU Cryptography
oblivious-transfer library and test: An implementation of the Oblivious Transfer protocol in Haskell
one-time-password library and test: HMAC-Based and Time-Based One-Time Passwords
openpgp-Crypto library and test: Implementation of cryptography for use with OpenPGP using the Crypto library
openpgp-crypto-api library and test: Implement cryptography for OpenPGP using crypto-api compatible libraries
OTP library and test: HMAC-Based and Time-Based One-Time Passwords (HOTP & TOTP)
pairing library, tests and benchmark: Bilinear pairings
PasswordGenerator library: Simple library for generating passwords
passwords library: Password generation/validation library
pbkdf library and test: Haskell implementation of the PBKDF functions from RFC-2898.
PBKDF2 library: Make password-based security schemes more secure.
pedersen-commitment library and test: An implementation of Pedersen commitment schemes
pipes-cacophony library, program and test: Pipes for Noise-secured network connections.
pkcs1 library: RSA encryption with PKCS1 padding
pureMD5 library and test: A Haskell-only implementation of the MD5 digest (hash) algorithm.
pwstore-cli program and test: Command line interface for the pwstore library
pwstore-fast library: Secure password storage.
pwstore-purehaskell library: Secure password storage, in pure Haskell.
qnap-decrypt library, program and test: Decrypt files encrypted by QNAP's Hybrid Backup Sync
RSA library and test: Implementation of RSA, using the padding schemes of PKCS#1 v2.1.
saltine library and test: Cryptography that's easy to digest (NaCl/libsodium bindings).
saltine-quickcheck library and test: Quickcheck implementations for some NaCl data
scrypt library and test: Stronger password hashing via sequential memory-hard functions.
secret-sharing library and test: Information-theoretic secure secret sharing
servant-hmac-auth library, program and test: Servant authentication with HMAC
SHA library, programs and test: Implementations of the SHA suite of message digest functions
SHA2 library: Fast, incremental SHA hashing for bytestrings
signable library and test: Deterministic serialisation and signatures with proto-lens support
signable-haskell-protoc program: Deterministic serialisation and signatures with proto-lens support
signify-hs library and program: A Haskell clone of OpenBSD signify.
SimpleAES library: Fast AES encryption/decryption for bytestrings
siphash library and test: siphash: a fast short input PRF
skein library and test: Skein, a family of cryptographic hash functions. Includes Skein-MAC as well.
slip32 library and test: SLIP-0032: Extended serialization format for BIP-32 wallets
stego-uuid library and test: Generator and verifier for steganographic numbers
threefish library: The Threefish block cipher and the Skein hash function for Haskell.
TigerHash library: TigerHash with C implementation
triplesec library and tests: TripleSec is a simple, triple-paranoid, symmetric encryption library
Twofish library and test: An implementation of the Twofish Symmetric-key cipher.
uuid-crypto library: Reversable and secure encoding of object ids as uuids
WMSigner library and test: WebMoney authentication module
wordpass library and program: Dictionary-based password generator
xsha1 library: cryptanalysis of Blizzard's broken SHA-1 implementation.
xxhash library, test and benchmark: A Haskell implementation of the xxHash algorithm
xxhash-ffi library, test and benchmark: Bindings to the C implementation the xxHash algorithm
yggdrasil library and test: Executable specifications of composable cryptographic protocols.
zerobin library and programs: Post to 0bin services

CsSyd

iostring library: A class of strings that can be involved in IO.

CSV

Cassava library and test: A CSV parsing and encoding library
cassava library and test: A CSV parsing and encoding library
cassava-embed library and program: CSV-file embedding library
cassava-megaparsec library and test: Megaparsec parser of CSV files that plays nicely with Cassava
cassava-records library and test: Auto-generation of records data type.
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
columnar library: A CSV toolkit based on cassava and enum-text
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dsv library and test: DSV (delimiter-separated values)
hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
pipes-csv library and test: Fast, streaming csv parser
pipes-key-value-csv library and test: Streaming processing of CSV files preceded by key-value pairs.
servant-cassava library and test: Servant CSV content-type for cassava
sv library, test and benchmark: Encode and decode separated values (CSV, PSV, ...)
sv-cassava library and test: Integration to use sv with cassava's parser
sv-core library and test: Encode and decode separated values (CSV, PSV, ...)
sv-svfactor library: sv-core + svfactor
svfactor library and test: Syntax-preserving CSV manipulation
tapioca library and test: A tasty enhancement to cassava for easy csv exporting

Culinary

herms program: A command-line manager for delicious kitchen recipes

Cursor

cursor-gen library, test and benchmark: Generators for Purely Functional Cursors

CustomSetup

autopack library: Custom Setup to automate package modules discovery
chs-cabal library: Cabal with c2hs dependencies

Data

abcBridge library, programs and test: Bindings for ABC, A System for Sequential Synthesis and Verification
abeson library: interconversion between aeson and bson.
abides library and test: Simple boolean tests to see if a value abides by certain properties
ABList library and test: An alternating list of two types
abstract-deque library: Abstract, parameterized interface to mutable Deques.
abstract-deque-tests library and test: A test-suite for any queue or double-ended queue satisfying an interface
AC-Angle library: Angles in degrees and radians.
AC-Boolean library: Handle Boolean values generatically.
AC-Colour library: Efficient RGB colour types.
AC-HalfInteger library: Efficient half-integer type.
ac-machine library: Aho-Corasick string matching algorithm in Haskell
ac-machine-conduit library: Drive Aho-Corasick machines in Conduit pipelines
AC-Terminal library: Trivial wrapper over ansi-terminal.
AC-VanillaArray library: Immutable arrays with plain integer indicies.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
accelerate library and tests: An embedded language for accelerated array processing
accelerate-bignum library, tests and benchmark: Fixed-length large integer arithmetic for Accelerate
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-io library: Convert between Accelerate arrays and raw pointers
accelerate-io-array library and test: Convert between Accelerate and array
accelerate-io-bmp library: Convert between Accelerate arrays and BMP images
accelerate-io-bytestring library: Convert between Accelerate and ByteString
accelerate-io-cereal library: Binary serialisation of Accelerate arrays using cereal
accelerate-io-JuicyPixels library: Convert between Accelerate arrays and JuicyPixels images
accelerate-io-repa library: Convert between Accelerate and Repa arrays
accelerate-io-serialise library: Binary serialisation of Accelerate arrays using serialise
accelerate-io-vector library and test: Convert between Accelerate and vector
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
accelerate-random library: Generate Accelerate arrays filled with high quality pseudorandom numbers
access-token-provider library and test: Provides Access Token for Services
active library and test: Abstractions for animation
adaptive-containers library: Self optimizing container types
adaptive-tuple library: Self-optimizing tuple types
AERN-Basics library and program: foundational type classes for approximating exact real numbers
AERN-Real library: arbitrary precision real interval arithmetic
AERN-Real-Double library and programs: arbitrary precision real interval arithmetic
AERN-Real-Interval library: arbitrary precision real interval arithmetic
AERN-RnToRm library: polynomial function enclosures (PFEs) approximating exact real functions
AERN-RnToRm-Plot library: GL plotting of polynomial function enclosures (PFEs)
aeson-applicative library: make To/From JSOn instances from an applicative description
aeson-bson library: Mapping between Aeson's JSON and Bson objects.
aeson-casing library and test: Tools to change the formatting of field names in Aeson instances.
aeson-extra library and test: Extra goodies for aeson
aeson-helper library: Aeson helper func
aeson-injector library and test: Injecting fields into aeson values
aeson-iproute library and test: Aeson instances for iproute types
aeson-lens library and test: Lens of Aeson
aeson-optics library: Law-abiding optics for aeson
aeson-options library: Options to derive FromJSON/ToJSON instances
aeson-schema library and test: Haskell JSON schema validator and parser generator
aeson-t library and test: Transform JSON
aeson-utils library: Utilities for working with Aeson.
aeson-value-parser library: API for parsing "aeson" JSON tree into Haskell types
aeson-via library and test: Wrappers to derive-via Aeson ToJSON/FromJSON typeclasses
aeson-with library: withXField combinators for aeson
aeson-yak library: Handle JSON that may or may not be a list, or exist
AesonBson library and test: Mapping between Aeson's JSON and Bson objects.
affinely-extended library
afis library and test: Anti-forensic Information Splitter
aig library and test: And-inverter graphs in Haskell.
aip library, program and test: Aeronautical Information Package (AIP)
alfred-margaret library and test: Fast Aho-Corasick string searching
algebraic-classes library: Conversions between algebraic classes and F-algebras.
algo-s library, program, test and benchmark: An implementation of Knuth's algorithm S.
align library: Sequence alignment algorithms.
alist library: lists with O(1) append
alphachar library and test: A character between a-z
alpino-tools library and programs: Alpino data manipulation tools
altcomposition library: Alternative combinators for unorthodox function composition
alternative-io library: IO as Alternative instance (deprecated)
always library: provides a typeclass that is always satisfied
annotated-fix library: A fixpoint of a functor that can be annotated
anonymous-sums library: Anonymous sum types
anonymous-sums-tests library: QuickCheck functions to accompany the anonymous-sums package
ANum library and test: Num instance for Applicatives provided via the ANum newtype
apache-md5 library, test and benchmark: Apache specific MD5 digest algorighm.
apart library, program and test: Get all your structure and rip it apart.
apecs library, test and benchmark: Fast Entity-Component-System library for game programming
apecs-stm library: STM stores for apecs
app-lens library and benchmarks: applicative (functional) bidirectional programming beyond composition chains
appc library, program and test: app container types and tools
applicative-numbers library: Applicative-based numeric instances
approximate-equality library: Newtype wrappers for approximate equality
arbor-lru-cache library and test: LRU cache based on STM
arff library: Generate Attribute-Relation File Format (ARFF) files
arith-encode library and test: A practical arithmetic encoding (aka Godel numbering) library.
armor library and test: Prevent serialization backwards compatibility problems using golden tests
array-builder library and test: Builders for arrays
array-chunks library and test: Lists of chunks
array-list library and tests: IsList instances of Array for OverloadedLists extension
array-primops library, test and benchmark: Extra foreign primops for primitive arrays
array-utils library: Primitive functions for updating many elements in mutable arrays at once
arraylist library and test: Memory-efficient ArrayList implementation
ArrayRef library: Unboxed references, dynamic arrays and more
ascii library: The ASCII character set and encoding
ascii-case library: ASCII letter case
ascii-char library: A Char type representing an ASCII character
ascii-group library: ASCII character groups
ascii-predicates library: Various categorizations of ASCII characters
ascii-superset library: Representing ASCII with refined supersets
ascii-table library: ASCII table
ascii-th library: Template Haskell support for ASCII
ascii-vector-avc library and program: Process Ascii Vectors for Advantest 93k
ascii85-conduit library and test: Conduit for encoding ByteString into Ascii85
asn library: asn type and encoding/decoding
asn1-data library and program: ASN1 data reader and writer in RAW, BER and DER forms
asn1-encoding library and test: ASN1 data reader and writer in RAW, BER and DER forms
asn1-parse library: Simple monadic parser for ASN1 stream types.
asn1-types library: ASN.1 types
assoc library: swap and assoc: Symmetric and Semigroupy Bifunctors
assoc-list library and tests: Association lists (lists of tuples)
assoc-listlike library and tests: Association lists (list-like collections of tuples)
ast-path library and test: vocabulary representation for predicting program properties
astar library: General A* search algorithm.
aterm library: serialisation for Haskell values with sharing support
atlassian-connect-descriptor library and test: Code that helps you create a valid Atlassian Connect Descriptor.
atomic-primops library: A safe approach to CAS and other atomic ops in Haskell.
atomic-primops-foreign library and test: An atomic counter implemented using the FFI.
attempt library: Concrete data type for handling extensible exceptions as failures. (deprecated)
atto-lisp library and test: Efficient parsing and serialisation of S-Expressions.
AttoBencode library and test: Fast Bencode encoding and parsing library
attoparsec-arff library: An ARFF file parser using Attoparsec
attoparsec-binary library: Binary processing extensions to Attoparsec.
attoparsec-conduit library: Consume attoparsec parsers via conduit. (deprecated)
attoparsec-iteratee library: An adapter to convert attoparsec Parsers into blazing-fast Iteratees
attoparsec-varword library and test: Variable-length integer decoding for Attoparsec
attosplit library: Split a lazy bytestring at boundaries defined by an attoparsec parser
audiovisual library: A battery-included audiovisual framework
automata library and test: automata
avl-static library and test: A compile-time balanced AVL tree.
avro library, tests and benchmark: Avro serialization support for Haskell
avro-piper library, program and test: Tool for decoding avro
b-tree library, test and benchmark: Immutable disk-based B* trees
bank-holidays-england library and test: Calculation of bank holidays in England and Wales
barbies-th library and test: Create strippable HKD via TH
base16 library, test and benchmark: Fast RFC 4648-compliant Base16 encoding
base16-bytestring library, test and benchmark: RFC 4648-compliant Base16 encodings for ByteStrings
base16-lens library: Optics for the Base16 library
base32 library, test and benchmark: Fast RFC 4648-compliant Base32 encoding
base32-bytestring library, test and benchmark: Fast base32 and base32hex codec for ByteStrings
base32-lens library: Optics for the Base32 library
base32-z-bytestring library, test and benchmark: Fast z-base32 and z-base32hex codec for ByteStrings
base32string library and test: Fast and safe representation of a Base-32 string
base58-bytestring library, test and benchmark: Implementation of BASE58 transcoding for ByteStrings
base58string library and test: Fast and safe representation of a Base-58 string
base62 library and tests: Base62 encoding and decoding
base64 library, test and benchmark: A modern RFC 4648-compliant Base64 library
base64-bytes library, test and benchmark: Base64 encoding of byte sequences
base64-bytestring library, test and benchmark: Fast base64 encoding and decoding for ByteStrings
base64-bytestring-type library and test: A newtype around ByteString, for base64 encoding
base64-conduit library and test: Base64-encode and decode streams of bytes. (deprecated)
base64-lens library: Optics for the Base64 library
baserock-schema library, program and test: Baserock Definitions Schema
batch library and test: Simplify queuing up data and processing it in batch.
bcp47 library and tests: Language tags as specified by BCP 47
bcrypt library: Haskell bindings to the bcrypt password hash
bdelta library: Simple, fast binary diff/patch
beamable library, test and benchmark: Generic serializer/deserializer with compact representation
bencoding library, test and benchmark: A library for encoding and decoding of BEncode data.
bert library and test: BERT implementation
between library: Function combinator "between" and derived combinators
bff library and programs: Bidirectionalization for Free! (POPL'09)
bff-mono library: "Bidirectionalization for Free" for Monomorphic Transformations
bidispec library: Specification of generators and parsers
bidispec-extras library: Extra helper functions for bidirectional specifications
bifunctors library and test: Bifunctors
bimap library and test: Bidirectional mapping between two key types
bimap-server library: Two-column database server.
bimaps library, test and benchmark: bijections with multiple implementations.
bin library: Bin: binary natural numbers.
binary library, tests and benchmarks: Binary serialisation for Haskell values using lazy ByteStrings
binary-bits library and test: Bit parsing/writing on top of binary.
binary-communicator library: Flexible way to ease transmission of binary data.
binary-derive library: Automatic deriving of Binary using GHC.Generics
binary-enum library: Simple wrappers around enum types
binary-ext library and test: An alternate with strong-typed errors for `Data.Binary.Get` monad from `binary` package.
binary-generic library: Generic binary serialisation using binary and syb.
binary-generic-combinators library and test: ...
binary-ieee754 library: Backport ieee754 float double combinators to older binary
binary-indexed-tree library: Binary Indexed Trees (a.k.a. Fenwick Trees).
binary-io library and test: Read and write values of types that implement Binary
binary-list library and benchmark: Lists of length a power of two.
binary-orphans library and test: Compatibility package for binary; provides instances
binary-parsers library, test and benchmark: Extends binary with parsec/attoparsec style parsing combinators.
binary-protocol library: Monad to ease implementing a binary network protocol.
binary-protocol-zmq library and program: Monad to ease implementing a binary network protocol over ZeroMQ
binary-shared library: Sharing for the binary package
binary-state library: Simple wrapper around Data.Binary, which adds StateT to Get/Put monads.
binary-store library and test: Format to store data using the binary transform.
binary-streams library and test: data serialization/deserialization io-streams library
binary-strict library and test: Binary deserialisation using strict ByteStrings
binary-tagged library, test and benchmark: Tagged binary serialisation.
binary-typed library, tests and benchmarks: Type-safe binary serialization
binary-varint library: VarInt encoding/decoding via Data.Binary
binarydefer library: Binary serialization with deferred loading
bind-marshal library: Data marshaling library that uses type level equations to optimize buffering.
bindynamic library: A variation of Data.Dynamic.Dynamic with a Binary instance
bini library: A collection of various methods for reading and writing bini files.
BiobaseENA library and test: European Nucleotide Archive data
bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring
bit-vector library and test: Simple bit vectors for Haskell
bitarray library: Mutable and immutable bit arrays
bitmap library: A library for handling and manipulating bitmaps (rectangular pixel arrays).
bitmap-opengl library: OpenGL support for Data.Bitmap.
bitmaps library: Bitmap library
bits library: Various bit twiddling and bitwise serialization primitives
bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
bits-bytestring library, test and benchmark: Bits instance for bytestrings.
bits-bytestring-lazy library, test and benchmark: Bits instance for lazy bytestrings.
bits-conduit library, test and benchmark: Bitstream support for Conduit
bits-extra library, tests and benchmark: Useful bitwise operations
bits-extras library and program: Efficient high-level bit operations not found in Data.Bits
bitstream library and tests: Fast, packed, strict and lazy bit streams with stream fusion
bitstring library: Lazy bit strings
bitvec library, test and benchmark: Space-efficient bit vectors
bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
bitwise-enum library, test and benchmark: Bitwise operations on bounded enumerations
blaze-builder library and test: Efficient buffered output.
blaze-builder-conduit library: Convert streams of builders to streams of bytestrings. (deprecated)
blaze-builder-enumerator library: Enumeratees for the incremental conversion of builders to bytestrings.
blazeT library: A true monad (transformer) version of the blaze-markup and blaze-html libraries
bloomfilter library and test: Pure and impure Bloom Filter implementations.
bloomfilter-redis library, test and benchmark: Distributed bloom filters on Redis (using the Hedis client).
boltzmann-samplers library, test and benchmark: Uniform random generators
bond-haskell library, test and benchmark: Runtime support for BOND serialization
bool-extras library: A fold function for Bool
Boolean library: Generalized booleans and numbers
boolean-list library: convert numbers to binary coded lists
boolean-normal-forms library and test: Boolean normal form: NNF, DNF & CNF
boombox library: Chronokinetic stream sources and incremental consumers
boring library: Boring and Absurd types
both library: Like Maybe, but with a different Monoid instance.
bounded-array library: Arrays with a value for every index
bounded-queue library and test: A strict, immutable, thread-safe, single-ended, bounded queue.
boundingboxes library: A generic boundingbox for an arbitrary vector
browscap library: A reader and interface for the Browser Capabilities Project data files.
bsb-http-chunked library, tests and benchmark: Chunked HTTP transfer encoding for bytestring builders
bson library and test: BSON documents are JSON-like objects with a standard binary encoding.
bson-generic library: Generic functionality for BSON
bson-generics library: Generics functionality for BSON
bson-mapping library: Mapping between BSON and algebraic data types.
bspack library, test and benchmark: A simple and fast bytestring packer
btree library, test and benchmark: B-Tree on Unmanaged Heap
buffer library, test and benchmark: Simple mutable low-level buffer for IO
buffer-builder library, tests and benchmarks: Library for efficiently building up buffers, one piece at a time
buffer-builder-aeson library, test and benchmark: Serialize Aeson values with Data.BufferBuilder
buildable library: Typeclass for builders of linear data structures
builder library: bounded ByteArray builder type
bv library and program: Bit-vector arithmetic library
bv-embed library: Define embeddings of small bit vectors into larger ones
bv-little library, test and benchmarks: Efficient little-endian bit vector library
byte-order library and test: Portable big-endian and little-endian conversions
byteable library: Type class for sequence of bytes
bytebuild library, test and benchmark: Serialize to a small byte arrays
bytehash library, test and benchmark: Universal hashing of bytes
bytelog library: Fast logging
bytes library: Sharing code for serialization between binary and cereal
byteset library: Set of bytes.
byteslice library, test and benchmark: Slicing managed and unmanaged memory
bytesmith library, test and benchmark: Nonresumable byte parser
bytestring library, tests and benchmark: Fast, compact, strict and lazy byte strings with a list interface
bytestring-arbitrary library, test and benchmark: Arbitrary instances for ByteStrings
bytestring-builder library: The new bytestring builder, packaged outside of GHC
bytestring-builder-varword library and test: Variable-length integer encoding
bytestring-class library: Classes for automatic conversion to and from strict and lazy bytestrings. (deprecated)
bytestring-conversion library, test and benchmark: Type-classes to convert values to and from ByteString.
bytestring-csv library: Parse CSV formatted data efficiently
bytestring-delta library: Simple, fast binary diff/patch
bytestring-encoding library and test: ByteString ↔ Text converter based on GHC.IO.Encoding
bytestring-encodings library, test and benchmark: checks to see if a given bytestring adheres to a certain encoding
bytestring-from library and test: A type-class to convert values from ByteString.
bytestring-lexing library: Parse and produce literals efficiently from strict or lazy bytestrings.
bytestring-plain library: Plain byte strings ('ForeignPtr'-less 'ByteString's)
bytestring-read library, tests and benchmark: fast ByteString to number converting library
bytestring-substring library: break bytestrings up into substrings
bytestring-time library and test: Library for Time parsing from ByteString
bytestring-trie library: An efficient finite map from (byte)strings to values.
bytestring-typenats library, test and benchmark: Bytestrings with typenat lengths
C-structs library and tests: C-Structs implementation for Haskell
ca-province-codes library and test: ISO 3166-2:CA Province Codes and Names
cache library and test: An in-memory key/value store with expiration support
cached-traversable library: Transparent, persistent caching of lazy, traversable structures
caching library and test: Cache combinators.
caching-vault library and test: A vault-style cache implementation
caerbannog library and test: That rabbit's got a vicious streak a mile wide!
call-stack library and test: Use GHC call-stacks in a backward compatible way
cantor-pairing library and test: Convert data to and from a natural number representation
capnp library, program and test: Cap'n Proto for Haskell
capped-list library: A list-like type for lazy sequences, with a user-defined termination value.
Cardinality library: Measure container capacity. Use it to safely change container.
carray library, test and benchmarks: A C-compatible array library.
case-insensitive library, test and benchmark: Case insensitive string comparison
cassava-conduit library, test and benchmark: Conduit interface for cassava package
cassava-generic library: Cassave instances for functor-like datatypes like `Either String a`.
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
castagnoli library and test: Portable CRC-32C
categorical-algebra library: Categorical Monoids and Semirings
CBOR library and tests: Encode/Decode values to/from CBOR
ccast library: typesafe c-style casts; useful for FFI
cereal library and test: A binary serialization library
cereal-derive library: Automatic deriving of Serialize using GHC.Generics
cereal-ieee754 library: Floating point support for the 'cereal' serialization library
cereal-io-streams library, test and benchmark: io-streams support for the cereal binary serialization library
cereal-streams library, test and benchmark: Use cereal to encode/decode io-streams.
cereal-text library: Data.Text instances for the cereal serialization library
cereal-time library and test: Serialize instances for types from `time` package.
cereal-vector library and test: Serialize instances for Data.Vector types.
certificate library and programs: Certificates and Key Reader/Writer
chain-codes library and test: Library decoding chain codes from images
chainweb-mining-client program: Mining Client for Kadena Chainweb
charset library: Fast unicode character sets based on complemented PATRICIA tries
chaselev-deque library and test: Chase & Lev work-stealing lock-free double-ended queues (deques).
chatty-utils library: Some utilities every serious chatty-based application may need.
Checked library: Inbuilt checking for ultra reliable computing
checked library: Bounds-checking integer types.
chimera library, test and benchmark: Lazy infinite streams with O(1) indexing
choice library: A solution to boolean blindness.
chronos library, tests and benchmark: A high-performance time library
chunked-data library: Typeclasses for dealing with various chunked data representations
church-maybe library: Church encoded Maybe
church-pair library: Church encoded pair
churros library and test: Channel/Arrow based streaming computation library.
cimple library, programs and test: Simple C-like programming language
ciphersaber2 library and program: Implementation of CipherSaber2 RC4 cryptography.
CLASE library: Cursor Library for A Structured Editor
classify library: Library for classification of media files.
classyplate library and benchmark: Fuseable type-class based generics
ClassyPrelude library: Prelude replacement using classes instead of concrete types where reasonable
clean-unions library: Open unions without need for Typeable
CLI library and test: CLI tools
clist library: Counted list
closed library and test: Integers bounded by a closed interval
cmf library and test: (C)oncurrent (M)onoidal (F)olds
cmph library and test: low level interface to CMPH
code-builder library: Simple system for generating code.
codec library and test: Simple bidirectional serialization
codec-libevent library and program: Cross-platform structure serialisation
coerce-util library: utils for Data.Coerce
coercible-subtypes library: Coercible but only in one direction
coercion-extras library and test: Extra utilities for manipulating nominal and representational coercions
cofunctor library: DEPRECATED: use the "contravariant" package
collection-json library and test: Collection+JSON—Hypermedia Type Tools
colors library: A type for colors
colour library and test: A model for human colour/color perception
colour-accelerate library: Working with colours in Accelerate
colour-space library: Instances of the manifold-classes for colour types
combobuffer library: Various buffer implementations
comfort-graph library and test: Graph structure with type parameters for nodes and edges
comic library: A format for describing comics.
commutative library and test: Commutative binary operations.
compact library and test: Non-GC'd, contiguous storage for immutable data structures
compact-list library and test: An append only list in a compact region
compact-map library: Compact Data.Map implementation using Data.Binary
compact-mutable-vector library and test: Mutable vector with different GC characteristics
compact-sequences library and tests: Stacks, queues, and deques with compact representations.
compact-string library: Fast, packed and strict strings with Unicode support, based on bytestrings.
compact-string-fix library: Same as compact-string except with a small fix so it builds on ghc-6.12
compact-word-vectors library and test: Small vectors of small integers stored very compactly.
compactmap library and test: A read-only memory-efficient key-value store.
compose-ltr library and test: More intuitive, left-to-right function composition.
composition library: Combinators for unorthodox function composition
composition-extra library: Combinators for unorthodox structure composition
composition-prelude library: Higher-order function combinators
composition-tree library and test: Composition trees for arbitrary monoids.
compositional-data library, test and benchmark: Compositional Data Types
compound-types library and benchmark: Sum and Product types and such
compressed library: Compressed containers and reducers
comptrans library: Automatically converting ASTs into compositional data types
concise library and test: Utilities for Control.Lens.Cons
concrete-haskell library, programs and tests: Library for the Concrete data format.
concrete-haskell-autogen library: Automatically generated Thrift definitions for the Concrete data format.
concrete-typerep library and test: Binary and Hashable instances for TypeRep
concurrent-batch library: Concurrent batching queue based on STM with timeout.
concurrent-buffer library, test and benchmark: Concurrent expanding buffer
concurrent-resource-map library and test: Concurrent resource map
condorcet library: Library for Condorcet voting
conduit library, test and benchmarks: Streaming data processing library.
conduit-combinators library: DEPRECATED Functionality merged into the conduit package itself
conduit-concurrent-map library and test: Concurrent, order-preserving mapping Conduit
conduit-extra library, test and benchmark: Batteries included conduit: adapters for common libraries.
conduit-resumablesink library and test: Allows conduit to resume sinks to feed multiple sources into it.
conduit-throttle library and test: Throttle Conduit Producers
conduit-tokenize-attoparsec library, program and test: Conduits for tokenizing streams.
conffmt program: A .conf file formatter
confide library and test: derive typeclass instances for decoding types from HOCON conf
config-manager library and test: Configuration management
configifier library, program and test: parser for config files, shell variables, command line args.
configuration library: Simple data type for application configuration.
configurator library and test: Configuration management
configurator-export library and test: Pretty printer and exporter for configurations from the "configurator" library.
configurator-ng library and test: The next generation of configuration management
configurator-pg library and test: Reduced parser for configurator-ng config files
congruence-relation library: Decidable congruence relations for Haskell: up to you whether this is a joke
connection-pool library: Connection pool built on top of resource-pool and streaming-commons.
ConsStream library: Trivial re-export of Wouter Swierstra's Stream package, avoiding module name clash.
constaparser library: Parse ByteStrings of a prescribed length.
constrained library: Generalization of standard Functor, Foldable, and Traversable classes
constrained-dynamic library and test: Dynamic typing with retained constraints
constrained-platform-instances library: Instances of standard platform types for 'constrained' package.
constraint-tuples library: Partially applicable constraint tuples
construct library and tests: Haskell version of the Construct library for easy specification of file formats
container library: Containers abstraction and utilities.
containers-accelerate library and test: Hashing-based container types
containers-deepseq library: Provide orphan NFData instances for containers as needed. (deprecated)
containers-verified library: Formally verified drop-in replacement of containers
context library and test: Thread-indexed, nested contexts
context-resource library and test: Thread-safe, pool-compatible resource provider
context-stack library: An abstraction of a stack and stack-based monadic context.
contiguous library, tests and benchmark: Unified interface for primitive arrays
contiguous-checked library: contiguous with bounds checks
contiguous-fft library: dft of contiguous memory structures
contravariant library: Contravariant functors
control-monad-attempt library: Monad transformer for attempt. (deprecated)
conversion library: Universal converter between values of different types
conversion-bytestring library: "Conversion" instances for the "bytestring" library
conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
conversion-text library: "Conversion" instances for the "text" library
convert library: Safe and unsafe data conversion utilities with strong type-level operation. checking.
convertible library and program: Typeclasses and instances for converting between types
convertible-ascii library: convertible instances for ascii
convertible-text program: Typeclasses and instances for converting between types (deprecated)
COrdering library: An algebraic data type similar to Prelude Ordering.
coroutine-iteratee library: Bridge between the monad-coroutine and iteratee packages.
count library: Bijective mappings between values and possibly infinite prefixes of [0..]
countable library and test: Countable, Searchable, Finite, Empty classes
counter library: An object frequency counter.
country-codes library, program and test: ISO 3166 country codes and i18n names.
coya library: Coya monoids
cpio-conduit library and test: Conduit-based CPIO
cpu library and program: Cpu information and properties helpers.
cqrs library: Command-Query Responsibility Segregation
cqrs-core library: Command-Query Responsibility Segregation
cqrs-memory library and test: Memory backend for the cqrs package.
cqrs-postgresql library and test: PostgreSQL backend for the cqrs package.
cqrs-sqlite3 library and test: SQLite3 backend for the cqrs package.
cqrs-test library: Command-Query Responsibility Segregation Test Support
cqrs-testkit library: Command-Query Responsibility Segregation Test Support
cqrs-types library: Command-Query Responsibility Segregation. Modules for the basic types.
critbit library, test and benchmark: Crit-bit maps and sets
crjdt-haskell library and test: A Conflict-Free Replicated JSON Datatype for Haskell
crypt-sha512 library and test: Pure Haskell implelementation for GNU SHA512 crypt algorithm
crypto-api library: A generic interface for cryptographic operations
crypto-api-tests library: A test framework and KATs for cryptographic operations.
cryptohash library, test and benchmarks: collection of crypto hashes, fast, pure and practical
cryptohash-md5 library, test and benchmark: Fast, pure and practical MD5 implementation
cryptohash-sha1 library, test and benchmark: Fast, pure and practical SHA-1 implementation
cryptohash-sha256 library, program, test and benchmark: Fast, pure and practical SHA-256 implementation
cryptohash-sha512 library, test and benchmark: Fast, pure and practical SHA-512 implementation
css-syntax library, test and benchmark: High-performance CSS tokenizer and serializer.
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
csv-enumerator library: A flexible, fast, enumerator-based CSV parser library for Haskell.
csv-table library: Scripts for manipulating tables stored as CSV files
CTRex library: Open records using closed type families.
cuckoo library, tests and benchmarks: Haskell Implementation of Cuckoo Filters
cuckoo-filter library, program and test: Pure and impure Cuckoo Filter
cudd library: Bindings to the CUDD binary decision diagrams library
currencies library and test: Currencies representation, pretty printing and conversion
currency library: Types representing standard and non-standard currencies
currency-codes library and test: ISO-4217 Currency Codes
currency-convert library: Typesafe currency conversion
curry library: Curry types
cve library: simple and efficient cve datatype
czipwith library and test: CZipWith class and deriving via TH
d10 library and test: Digits 0-9
data-accessor library: Utilities for accessing and manipulating fields of records
data-accessor-monadLib library: Accessor functions for monadLib's monads
data-accessor-monads-fd library: Use Accessor to access state in monads-fd State monad class
data-accessor-monads-tf library: Use Accessor to access state in monads-tf State monad type family
data-accessor-mtl library: Use Accessor to access state in mtl State monad class
data-accessor-template library: Utilities for accessing and manipulating fields of records
data-accessor-transformers library: Use Accessor to access state in transformers State monad
Data-Angle library: Geometric angles
data-as library: Simple extensible sum
data-ascii library: Type-safe, bytestring-based ASCII values
data-binary-ieee754 library: Parser/Serialiser for IEEE-754 floating-point values
data-bword library and test: Extra operations on binary words of fixed length
data-carousel library: A rotating sequence data structure
data-cell library: Generic cellular data representation library
data-check library and test: Library for checking and normalization of data (e.g. from web forms)
data-checked library: Type-indexed runtime-checked properties
data-combinator-gen library: Generate a special combinator from any data type.
data-compat library: Define Backwards Compatibility Schemes for Arbitrary Data
data-constructors library, test and benchmark: Generically compare data by their constructors
data-cycle library: a cyclic doubly linked list
data-default library: A class for types with a default value
data-default-class library: A class for types with a default value
data-default-extra library: A class for types with a default value.
data-default-generics library and test: A class for types with a default value
data-default-instances-base library: Default instances for types in base
data-default-instances-bytestring library: Default instances for (lazy and strict) ByteString, Builder and ShortByteString.
data-default-instances-case-insensitive library: Default instance for CI type from case-insensitive package.
data-default-instances-containers library: Default instances for types in containers
data-default-instances-dlist library: Default instances for types in dlist
data-default-instances-new-base library: Default instances for types in newer versions of base package.
data-default-instances-old-locale library: Default instances for types in old-locale
data-default-instances-text library: Default instances for (lazy and strict) Text and Text Builder.
data-default-instances-unordered-containers library: Default instances for unordered-containers.
data-default-instances-vector library: Default instances for types defined in vector package
data-dispersal library and test: Space-efficient and privacy-preserving data dispersal algorithms.
data-diverse library, test and benchmark: Extensible records and polymorphic variants.
data-diverse-lens library and test: Isos & Lens for Data.Diverse.Many and Prisms for Data.Diverse.Which
data-dword library and test: Stick two binary words together to get a bigger one
data-easy library and test: Consistent set of utility functions for Maybe, Either, List and Monoids.
data-elf library: Executable and Linkable Format (ELF) data structures.
data-embed library and program: Embed files and other binary blobs inside executables without Template Haskell.
data-endian library: Endian-sensitive data
data-extend-generic library and test: Extend Haskell data or newtype like in OOP languages
data-filepath library: A type safe file path data structure
data-filter library: Utilities for filtering
data-fin library: Finite totally ordered sets
data-fin-simple library and test: Simple integral finite set
data-fix library: Fixpoint data types
data-fix-cse library: Common subexpression elimination for the fixploint types.
data-flags library: A package for working with bit masks and flags in general.
data-flagset library: An efficient data type for sets of flags
data-foldapp library: Fold function applications. Framework for variadic functions.
data-function-meld library: Map the arguments and return value of functions.
data-function-tacit library: ...
data-has library and benchmark: Simple extensible product
data-hash library and test: Combinators for building fast hashing functions.
Data-Hash-Consistent library: Provide a simple consistent hashing mechanism
data-index library and test: Extending the concept of indices for lists and other containers
data-interval library and test: Interval datatype, interval arithmetic and interval-based containers
data-inttrie library: A simple lazy, infinite trie from integers
data-ivar library: Write-once variables with concurrency support
data-json-token library, program and test: Json Token datatype
data-kiln library: ...
data-layout library: Read/write arbitrary binary layouts to a "Data.Vector.Storable".
data-lens-light library: Simple lenses, minimum dependencies
data-lens-template library: Utilities for Data.Lens
data-list-sequences library: Utilities for working with sequences within lists.
data-list-zigzag library: A list but with a balanced enumeration of Cartesian product.
data-map-multikey library: Data.Map with multiple, unique keys
data-memocombinators library: Combinators for building memo tables.
data-msgpack library, program, test and benchmark: A Haskell implementation of MessagePack
data-msgpack-types library and test: A Haskell implementation of MessagePack.
data-nat library: data Nat = Zero | Succ Nat
data-object library: Represent hierachichal structures, called objects in JSON. (deprecated)
data-or library: A data type for non-exclusive disjunction.
data-ordlist library: Set and bag operations on ordered lists
data-partition library: A pure disjoint set (union find) data structure
data-quotientref library: Reference cells that need two independent indices to be accessed.
data-ref library: Unify STRef and IORef in plain Haskell 98
data-reify library, programs and test: Reify a recursive data structure into an explicit graph.
data-reify-cse library: Common Sub-Expression Elimination for graphs generated by Data.Reify.
data-rev library: A typeclass for reversing order of contents.
Data-Rope library: Ropes, an alternative to (Byte)Strings.
data-rope library: Ropes, an alternative to (Byte)Strings.
data-serializer library and test: Common API for serialization libraries
data-spacepart library: Deprecated. Now called "spacepart". Space partitioning data structures.
data-standards library: A collection of standards representable by simple data types.
data-store library, test and benchmark: Type safe, in-memory dictionary with multidimensional keys.
data-sword library and test: Shorter binary words
data-tensor library: Tensor and Group typeclasses
data-textual library and test: Human-friendly textual representations.
data-timeout library: 64-bit timeouts of nanosecond precision
data-transform library: Functions to transform data structures.
data-treify library: Reify a recursive data structure into an explicit graph.
data-type library: Basic type wrangling types and classes
data-util library: utilities for handle data
data-validation library and test: A library for creating type safe validations.
data-variant library: A variant data type, useful for modeling dynamically-typed programming languages
data-vector-growable library and test: Dynamic growable resizable mutable generic vector
DataIndex library, program, test and benchmark: A package for adding index column to data files
datasets library, test and benchmark: Classical data sets for statistics and machine learning
DataVersion library and test: Type safe data migrations
date-conversions library and test: Date conversions
dates library and test: Small library for parsing different dates formats.
datetime library and test: Utilities to make Data.Time.* easier to use
datetime-sb library and test: Utilities to make Data.Time.* easier to use.
dawg library: Directed acyclic word graphs
dawg-ord library and test: Directed acyclic word graphs
DCFL library: Communication Free Learning-based constraint solver
ddate library: Discordian Date Types for Haskell
dec library: Decidable propositions.
deiko-config library: Small and typesafe configuration library.
delimited-text library: Parse character delimited textual data
delta library, programs and test: A library for detecting file changes
dense library and test: Mutable and immutable dense multidimensional arrays
dense-int-set library and test: Dense int-set
dependent-hashmap library and test: Dependent hash maps
dependent-map library: Dependent finite maps (partial dependent products)
dependent-monoidal-map library: Dependent map that uses semigroup mappend
dependent-state library: Control structure similar to Control.Monad.State, ...
dependent-sum library: Dependent sum type
depq library and test: Double-ended priority queues
derive-enumerable library: Generic instances for enumerating complex data types
derive-IG library: Macro to derive instances for Instant-Generics using Template Haskell
derive-lifted-instances library: Derive class instances though various kinds of lifting
derive-trie library: Automatic derivation of Trie implementations.
deriveJsonNoPrefix library and test: Derive ToJSON/FromJSON instances in a more prefix-friendly manner.
describe library and test: Combinators for describing binary data structures
descrilo library: Loads a list of items with fields
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dgim library and test: Implementation of DGIM algorithm
dice-entropy-conduit library and test: Cryptographically secure n-sided dice via rejection sampling
dicom library: ...
diff3 library and test: Perform a 3-way difference of documents
diffmap library: diff on maps
Digit library: A data-type representing digits 0-9
digit library and test: A data-type representing digits 0-9 and other combinations
digits library and test: Converts integers to lists of digits and back.
digraph library and test: Directed Graphs
DimensionalHash library: An n-dimensional hash using Morton numbers.
direct-binary-files library: Serialization and deserialization monads for streams and ByteStrings.
direct-murmur-hash library: An implementation of the MurmurHash3 algorithm
directory-tree library and test: A simple directory-like tree datatype, with useful IO functions
dirfiles library
discrete library: replacement for enum
discrete-intervals library: Discrete Intervals
discrete-space-map library: A discrete space map.
discrimination library, test and benchmarks: Fast generic linear-time sorting, joins and container construction.
Dish library and program: Hash modules (currently Murmur3)
disjoint-set library and test: Persistent disjoint-sets, a.k.a union-find.
disjoint-set-stateful library and test: Monadic disjoint set
diskhash library and test: Disk-based hash table
DistanceUnits library: A comprehensive distance library
dlist library and test: Difference lists
dlist-instances library: Difference lists instances
dlist-nonempty library, test and benchmark: Non-empty difference lists
do-list library, test and benchmark: Do notation for free
dockerfile library and test: A Haskell DSL for generating Dockerfiles
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
doldol library and test: Flag packer & handler for flaggable data
dot library and program: Datatypes and encoding for graphviz dot files
dotnet-timespan library: .NET TimeSpan
double-metaphone library: Haskell bindings to a C double-metaphone implementation.
doublezip library: Some special functions to work with lists (with zip).
DPutils library, test and benchmarks: utilities for DP
dson library: Haskell Doge Serialized Object Notation Parser
dson-parsec library: DSON parser.
dstring library: Difference strings
dtab library and program: Harmonix (Guitar Hero, Rock Band) DTA/DTB metadata library
dtd-text library: Parse and render XML DTDs
dtd-types library: Basic types for representing XML DTDs
dual-tree library and test: Rose trees with cached and accumulating monoidal annotations
dublincore-xml-conduit library and tests: XML streaming parser/renderer for the Dublin Core standard elements.
dwarf library: Parser for DWARF debug format.
dwarf-el library: Parser for DWARF debug format.
dynamic-graphs library, programs, test and benchmark: Dynamic graph algorithms
dynamic-mvector library: A wrapper around MVector that enables pushing, popping and extending.
dynamic-object library and tests: Object-oriented programming with duck typing and singleton classes.
dynamic-state library: Optionally serializable dynamic state keyed by type
DynamicTimeWarp library and programs: Dynamic time warping of sequences.
edit library and test: A monad for rewriting things.
edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
edit-lenses library: Symmetric, stateful edit lenses
edit-lenses-demo program: Programs demoing the use of symmetric, stateful edit lenses
editable library: Interactive editors for Generics
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
either-both library and test: Either or both
either-list-functions library and test: Functions involving lists of Either
either-result library and tests: The simplest ‘MonadFail’ instance
either-unwrap library: Functions for probing and unwrapping values inside of Either.
elerea-sdl library: Elerea FRP wrapper for SDL
elf library and test: An Elf parser
elm-export-persistent library: elm-export persistent entities
empty-monad library: A container that always has no values.
encode-string library and test: Safe string conversion and encoding
encoding-io library: Encoding-aware file I/O.
endo library: Endomorphism utilities.
engineering-units library: A numeric type for managing and automating engineering units.
entropy library: A platform independent entropy source
enum-subset-generate library and test: Generate an ADT being a subset of another ADT, and the corresponding mappings.
enum-types library: small enum types
EnumContainers library: Simple Enum-class-based int containers
enumerable library: A typeclass for enumerating all values a type
enumerate library and program: enumerate all the values in a finite type (automatically)
enumeration library and test: A practical API for building recursive enumeration procedures and enumerating datatypes.
enumerator library: Reliable, high-performance processing with left-fold enumerators
enumfun library: Finitely represented /total/ EnumMaps
enummapmap library, tests and benchmark: Map of maps using Enum types as keys
enummapset-th library: TH-generated EnumSet/EnumMap wrappers around IntSet/IntMap.
enumset library: Sets of enumeration values represented by machine words
envy-extensible library and tests: Provides FromEnv in envy instance for Record of extensible.
equivalence library and test: Maintaining an equivalence relation implemented as union-find using STT.
error-or library: Composable, hierarchical errors.
error-or-utils library: Utilities using ErrorOr datatype
ess library: The type-level S combinator in Haskell.
EstProgress library: Methods for estimating the progress of functions
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
euler-tour-tree library and tests: Euler tour trees
EuroIT library: Library for using euro currency, italian language
event-handlers library: Event handlers
event-list library and test: Event lists with relative or absolute time stamps
every-bit-counts library: A functional pearl on encoding and decoding using question-and-answer strategies
ex-pool library: Another fork of resource-pool, with a MonadIO and MonadCatch constraint
exact-pi library and test: Exact rational multiples of pi (and integer powers of pi)
exinst library and test: Dependent pairs and their instances.
exinst-aeson library and test: Dependent pairs and their instances.
exinst-bytes library and test: Dependent pairs and their instances.
exinst-cereal library and test: Dependent pairs and their instances.
exinst-deepseq library: Derive instances for the `deepseq` library for your existential types.
exinst-hashable library: Derive instances for the `hashable` library for your existential types.
exinst-serialise library and test: Dependent pairs and their instances.
existential library: Existential types with lens-like accessors.
explicit-constraint-lens library and test: Fully-flexible polymorphic lenses, without any bizarre profunctors
express library, tests and benchmarks: Dynamically-typed expressions involving applications and variables.
expressions library and test: Expressions and Formulae a la carte
expressions-z3 library and test: Encode and Decode expressions from Z3 ASTs
extend-record-data-th library and test: TH to define a new record data type that extends the existing record data type.
extensible library and test: Extensible, efficient, optics-friendly data types and effects
extensible-data library: Sums/products/lists/trees which can be extended in other modules
extensible-sp library: light-weight, extensible sums and products over types and kinds
extractable-singleton library: A functor, where the "stored" value is isomorphic to Identity
f-algebra-gen library: Generate a special f-algebra combinator from any data type.
facts library: Refined types
fadno-braids library: Braid representations in Haskell
failable-list library: A list-like type for lazy streams, which might terminate with an error.
fair library, test and benchmark: Lists with fair choice
fair-predicates library: Fair Predicates
fake library and test: Randomly generated fake data
fallible library and test
familiar-reflection library: Reifies arbitrary terms into types that can be reflected back into terms
family-tree library: A family tree library for the Haskell programming language.
fast-builder library, test and benchmarks: Fast ByteString Builder
fast-digits library, test and benchmark: Integer-to-digits conversion.
fast-nats library: Natural Numbers with no overhead
fasta library: A simple, mindless parser for fasta files.
fastsum library and program: A fast open-union type suitable for 100+ contained alternatives
fay-text library: Fay Text type represented as JavaScript strings
fca library: Algo for Formal Concept Analysis
fclabels library, test and benchmark: First class accessor labels implemented as lenses.
fclabels-monadlib library: MonadLib monadic interface for the "fclabels" package.
fields library: First-class record field combinators with infix record field syntax.
fieldwise library and test: ...
file-embed library and test: Use Template Haskell to embed file contents directly.
file-embed-lzma library and test: Use Template Haskell to embed (LZMA compressed) data.
file-embed-poly library and test: Use Template Haskell to embed file contents directly.
filecache library and test: A cache system associating values to files.
filediff library and test: Diffing and patching module
filestore library and test: Interface for versioning file stores.
filesystem-conduit library and test: Use system-filepath data types with conduits. (deprecated)
filesystem-trees library: Recursively manipulate and traverse filesystems as lazy rose trees.
filters-basic library: Allows to change the structure of the function output.
filtrable library and test: Class of filtrable containers
Fin library: Finite totally-ordered sets
fin library and test: Nat and Fin: peano naturals and finite numbers
fingertree-tf library: Generic finger-tree structure using type families.
finitary library and test: A better, more type-safe Enum.
finitary-derive library and test: Flexible and easy deriving of type classes for finitary types.
finitary-optics library and test: Prisms and Isos between finitary types.
finite-field library and test: Finite Fields
finite-typelits library: A type inhabited by finitely many values, indexed by type-level naturals.
FiniteMap library: A finite map implementation, ...
first-and-last library and test: First and Last generalized to return up to n values
first-class-patterns library: First class patterns and pattern matching, using type families
fit library and test: FIT file decoder
fitsio library: A library for reading and writing data files in the FITS data format.
fixed-length library: Lists with statically known length based on non-empty package.
fixed-list library: A fixed length list type
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
fixed-vector library and test: Generic vectors with statically known size.
fixed-vector-binary library and test: Binary instances for fixed-vector
fixed-vector-cborg library and test: Binary instances for fixed-vector
fixed-vector-cereal library and test: Cereal instances for fixed-vector
fixed-vector-hetero library and test: Library for working with product types generically
FixedPoint-simple library: Fixed point, large word, ...
fixedprec library: A fixed-precision real number type
fixfile library and test: File-backed recursive data structures.
fixpoint library: Data types as fixpoints
fixtime library: Some fixes to the time package
flat library and tests: Principled and efficient bit-oriented binary serialization.
flat-maybe library: Strict Maybe without space and indirection overhead
flatbuffers library, test and benchmark: Haskell implementation of the FlatBuffers protocol.
flay library and test: Work generically on your datatype without knowing its shape nor its contents.
flexible-time library: simple extension of Data.UnixTime.
flexiwrap library: Flexible wrappers
flexiwrap-smallcheck library: SmallCheck (Serial) instances for flexiwrap
flight-igc library: A parser for IGC files.
flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.
float-binstring library and test: C99 printf "%a" style formatting and parsing
floating-bits library, test and benchmark: Conversions between floating and integral values.
fmlist library: FoldMap lists
Focus library: Tools for focusing in on locations within numbers
focus library and test: A general abstraction for manipulating elements of container data structures
foldable-ix library: Functions to find out the indices of the elements in the Foldable structures
folds library: Beautiful Folding
folds-common library and tests: A playground of common folds for folds
foscam-directory library and test: Foscam File format
foscam-filename library and test: Foscam File format
foscam-sort library, program and test: Foscam File format
Foster program and benchmark: Utilities to generate and solve puzzles
fraction library: Fractions
Frames library, programs, tests and benchmarks: Data frames For working with tabular data files
Frames-beam library and test: A library for accessing Postgres tables as in-memory data structures.
Frames-dsv library and test: Alternative CSV parser for the Frames package
Frames-map-reduce library and test: Frames wrapper for map-reduce-folds and some extra folds helpers.
Frames-streamly library and tests: A streamly layer for Frames I/O
free-functors library: Free functors, adjoint to functors that forget class constraints.
freq library, test and benchmark: Are you ready to get freaky?
frontmatter library and test: Parses frontmatter as used in Jekyll markdown files.
fsmActions library: Finite state machines and FSM actions
fsnotify-conduit library and test: Get filesystem notifications as a stream of events
ftree library: Depth-typed functor-based trees, both top-down and bottom-up
full-text-search library, program and test: In-memory full text search engine
functional-kmp library: KMP implemented on haskell's built-in cons-cell-based lists.
functor-classes-compat library: Data.Functor.Classes instances for core packages
functor-combinators library and test: Tools for functor combinator-based program design
functor-combo library: Functor combinators with tries & zippers
functor-infix library: Infix operators for mapping over compositions of functors. Lots of them.
functor-monadic library: Monad-style combinators for functors.
functor-products library: General functor products for various Foldable instances
functor-utils library: Collection of functor utilities, providing handy operators, like generalization of (.).
fusion library and test: Effectful streaming library based on shortcut fusion techniques
fuzzyset library and test: Fuzzy set for approximate string matching
fvars library and test: Fast Mutable Vars
game-tree library: Searching game trees with alpha-beta pruning
garfield library: TBA
gather library: An applicative for parsing unordered things, heterogenous sorting
gc library: Poor Richard's Memory Manager
gdiff library: Generic diff and patch
general-prelude library: Prelude replacement using generalized type classes where possible
generic-accessors library and test: stringly-named getters for generic data
generic-aeson library: Derivation of Aeson instances using GHC generics.
generic-binary library: Generic Data.Binary derivation using GHC generics.
generic-labels library and test: Generically extract and replace collections of record fields
generic-match library: First class pattern matching
generic-monoid library: Derive monoid instances for product types.
generic-storable library and test: Generic implementation of Storable
generic-trie library: A map, where the keys may be complex structured data.
generic-xmlpickler library and test: Generic generation of HXT XmlPickler instances using GHC Generics
generics-sop-lens library: Lenses for types in generics-sop
genericserialize library: Serialization library using Data.Generics
genvalidity-typed-uuid library, test and benchmark: Generators for Phantom-Typed version of UUID
geo-uk library: High precision conversion between GPS and UK Grid
geohash library: Geohash latitudes and longitudes.
geojson library and tests: A thin GeoJSON Layer above the aeson library
geojson-types library: GeoJSON data types including JSON/BSON conversion.
ghc-compact library: In memory storage of deeply evaluated data structure
ghci-hexcalc library and test: GHCi as a Hex Calculator interactive
ghcjs-promise library: Bidirectional bidings to javascript's promise.
ghost-buster library and test: Existential type utilites
git-date library and test: Bindings to the date parsing from Git.
git-object library: Git object and its parser
global library: Library enabling unique top-level declarations
global-variables library: Namespaced, global, and top-level mutable variables without unsafePerformIO.
gofer-prelude library: The Gofer 2.30 standard prelude
google-dictionary library: Simple interface to the google.com/dictionary API
google-mail-filters library and test: Write GMail filters and output to importable XML
googlepolyline library and test: Google Polyline Encoder/Decoder
gpcsets library: Generalized Pitch Class Sets for Haskell.
gps library and test: For manipulating GPS coordinates and trails.
gps2htmlReport library and program: GPS to HTML Summary Report
gpx-conduit library: Read GPX files using conduits
grapefruit-records library: A record system for Functional Reactive Programming
graph library and test: Class of graphs
graph-core library and test: Fast, memory efficient and persistent graph implementation
graph-utils library: A simple wrapper & quasi quoter for fgl.
graphbuilder library and test: A declarative, monadic graph construction language for small graphs
graphene library: A minimal Graph Theory library.
graphql-utils library: GraphQL Utils
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
greplicate library and test: Generalised replicate functions
greskell library and tests: Haskell binding for Gremlin graph query language
greskell-core library and tests: Haskell binding for Gremlin graph query language - core data types and tools
group-with library and test: Classify objects by key-generating function, like SQL GROUP BY
groupBy library, test and benchmark: Replacement definition of Data.List.GroupBy
grouped-list library, tests and benchmark: Grouped lists. Equal consecutive elements are grouped.
groupoid library: A Groupoid class
groups library: Groups
grow-vector library and test: Mutable vector with efficient appends
gstorable library and test: Generic implementation of Storable
gtfs library: The General Transit Feed Specification format
gtfs-realtime library: GTFS RealTime protobafs library (autogenerated from .proto file)
hadoop-formats library and test: Read/write file formats commonly used by Hadoop.
hadoop-rpc library and test: Use the Hadoop RPC interface from Haskell.
hadoop-tools program and test: Fast command line tools for working with Hadoop.
HaLeX library and program: HaLeX enables modelling, manipulation and visualization of regular languages
halves library and test: Split or combine data structures to and from halves, quarters, eighths
handa-data library: ...
handa-geodata library and programs: Geographic and Geometric Data
HappyTree library and test: Type Safe and End to End Decision Tree
har library: HAR spec in Haskell
has library and program: Entity based records
has-th library: Template Haskell function for Has records.
HasCacBDD library and test: Haskell bindings for CacBDD
hash library and test: Hashing tools
hash-tree library and test: Merkle Hash Tree
hashable library and tests: A class for types that can be converted to a hash value
hashable-accelerate library: A class for types which can be converted into a hash value
hashable-extras library and test: Higher-rank Hashable
hashable-generics library, test and benchmark: Automatically generates Hashable instances with GHC.Generics.
hashable-orphans library: Provides instances missing from Hashable.
hashable-time library: Hashable instances for Data.Time
hashabler library, test and benchmarks: Principled, portable & extensible hashing of data and types, ...
hashflare library: A library for working with HashFlare.io contracts and hashrates
hashmap library: Persistent containers Map and Set based on hashing.
hashmap-io library: A Hashmap on io monad.
hashring library and test: Efficient consistent hashing.
hashtables library and test: Mutable hash tables in the ST monad
hashtables-plus library and benchmark: Extensions for a "hashtables" library
haskell-modbus library and test: A cereal-based parser for the Modbus protocol
haskell-qrencode library: Haskell bindings for libqrencode.
haskus-utils-data library and test: Haskus data utility modules
haxparse library and program: Readable HaxBall replays
Hayoo programs: The Hayoo! search engine for Haskell API search on hackage
hbcd library: Packed binary-coded decimal (BCD) serialization
hBDD library: An abstraction layer for BDD libraries
hBDD-CMUBDD library: An FFI binding to CMU/Long's BDD library
hBDD-CUDD library: An FFI binding to the CUDD library
hblock library: A mutable vector that provides indexation on the datatype fields it stores
hdf5-lite library and test: High-level bindings to the HDF5 "lite" interface
hDFA library: A simple library for representing and minimising DFAs.
hebrew-time library and test: Hebrew dates and prayer times.
heckin library and test: Oh heck, it's a heckin' case conversion library.
hedgehog-generic library: GHC Generics automatically derived hedgehog generators
hedn library and test: EDN parsing and encoding
hedn-functor library: Base functor for EDN AST
here library: Here docs & interpolated strings via quasiquotation
hetero-dict library and benchmark: Fast heterogeneous data structures
hetero-map library: Pure heterogeneous maps.
heterogeneous-list-literals library and test: Allows the use of tuples as literals for Heterogeneous collections
heterolist library and test: A heterogeneous list type
hex library: Convert strings into hexadecimal and back.
HExcel library: Create Excel files with Haskell
hexpat-pickle-generic library and test: Picklers for de/serialising Generic data types to and from XML
hexquote library: Hexadecimal ByteString literals, with placeholders that bind variables
hexstring library and test: Fast and safe representation of a hex string
HFrequencyQueue library: A Queue with a random (weighted) pick function
hgeos library and test: Simple Haskell bindings to GEOS C API
hgrib library, program and test: Unofficial bindings for GRIB API
hierarchy library and test: Predicated traversal of generated trees
higgledy library and tests: Partial types as a type constructor.
HiggsSet library: A multi-index set with advanced query capabilites
hinze-streams library: Streams and Unique Fixed Points
hips program: an IPS patcher
histogram-fill library and benchmark: Library for histograms creation.
histogram-fill-binary library: Binary instances for histogram-fill package
histogram-fill-cereal library: Binary instances for histogram-fill package
histogram-simple library: Simple Data.Map-based histogram
hjcase library: Jcase library for Haskell
hjsonpointer library and test: JSON Pointer library
hjsonschema library and tests: JSON Schema library
hkd-delta library: Definition of "Delta structures" for higher kinded data.
hkd-lens library: Generic lens/prism/traversal-kinded data.
HList library and tests: Heterogeneous lists
hlist library: Heterogeneous list
HMap library: Fast heterogeneous maps and unconstrained typeable-like functionality.
hmatrix-csv library: CSV encoding and decoding for hmatrix.
hmatrix-repa library: Adaptors for interoperability between hmatrix and repa
hmemdb library: In-memory relational database
hmpfr library: Haskell binding to the MPFR library
hnetcdf library, programs and tests: Haskell NetCDF library
hnix library, program, test and benchmark: Haskell implementation of the Nix language
hocon library and test: Small library for typesafe's configuration specification
hodatime library, test and benchmark: A fully featured date/time library based on Nodatime
hole library: Higher kinded type removal
holmes library and tests: Tools and combinators for solving constraint problems.
Holumbus-Searchengine library: A search and indexing engine.
homotuple library: Homotuple, all whose elements are the same type
hoodle-types library: Data types for programs for hoodle file format
hOpenPGP library, test and benchmark: native Haskell implementation of OpenPGP (RFC4880)
hopenpgp-tools programs: hOpenPGP-based command-line tools
horizon library: Sunrise and sunset UTC approximations from latitude and longitude coordinates
hostaddress library: Network Host Addresses
hpc-codecov library, program and test: Generate codecov report from hpc data
hreader-lens library: Optics for hreader package
hs-blake2 library, test and benchmark: A cryptohash-inspired library for blake2
hs-excelx library: ...
hs-GeoIP library: Haskell bindings to the MaxMind GeoIPCity database via the C library
hs-multiaddr library and test: Multiaddr library
hs-openmoji-data library and program: The OpenMoji emoji dataset
hs-php-session library: PHP session and values serialization
hs-pkg-config library: Create pkg-config configuration files
hs-swisstable-hashtables-class library and test: Data.HashTable.Class instance definition for Data.HashTable.ST.Swiss
hschema library: Describe schemas for your Haskell data types.
hschema-aeson library and test: Describe schemas for your Haskell data types.
hschema-prettyprinter library: Describe schemas for your Haskell data types.
hschema-quickcheck library: Describe schemas for your Haskell data types.
HSet library: Faux heterogeneous sets
hset library and test: Primitive list with elements of unique types.
hsini library and test: ini configuration files
HsJudy library: Judy bindings, and some nice APIs
hsndfile library: Haskell bindings for libsndfile
hsndfile-storablevector library: Haskell bindings for libsndfile (Data.StorableVector interface)
hsndfile-vector library: Haskell bindings for libsndfile (Data.Vector interface)
htlset library: Heterogenous Set
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
htssets library: Heterogenous Sets
https-everywhere-rules library and test: High-level access to HTTPS Everywhere rulesets.
https-everywhere-rules-raw library: Low-level (i.e. XML) access to HTTPS Everywhere rulesets.
httpspec library: Specification of HTTP request/response generators and parsers
huffman library: Pure Haskell implementation of the Huffman encoding algorithm
HulkImport library, program and test: Easily bulk import CSV data to SQL Server
hunt-searchengine library and tests: A search and indexing engine.
hunt-server program: A search and indexing engine server.
hvect library and test: Simple strict heterogeneous lists
hw-aeson library and tests: Convenience functions for Aeson
hw-all library: Demo library
hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-bits library, tests and benchmark: Bit manipulation
hw-conduit library, tests and benchmark: Conduits for tokenizing streams.
hw-conduit-merges library and test: Additional merges and joins for Conduit
hw-dump library, program, tests and benchmark: File Dump
hw-eliasfano library, program, tests and benchmark: Elias-Fano
hw-excess library, tests and benchmark: Excess
hw-int library and tests: Additional facilities for Integers
hw-json library, program, tests and benchmark: Memory efficient JSON parser
hw-json-lens library, tests and benchmark: Lens for hw-json
hw-json-simd library, program and tests: SIMD-based JSON semi-indexer
hw-json-simple-cursor library, program, tests and benchmark: Memory efficient JSON parser
hw-json-standard-cursor library, program, tests and benchmark: Memory efficient JSON parser
hw-mquery library, program and tests: Monadic query DSL
hw-packed-vector library, program, tests and benchmark: Packed Vector
hw-parser library and tests: Simple parser support
hw-playground-linear library and test: Primitive functions and data types
hw-prim library, tests and benchmark: Primitive functions and data types
hw-prim-bits library, program, test and benchmark: Primitive support for bit manipulation
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-simd library, tests and benchmark: SIMD library
hw-simd-cli library, program and test: SIMD library
hw-streams library, tests and benchmark: Primitive functions and data types
hw-string-parse library and test: String parser
hw-succinct library: Succint datastructures
hw-uri library, program and test: Supports IO on URIs
hw-vector library and test: Vector type with convenient typeclass instances
hw-xml library, program, tests and benchmark: XML parser based on succinct data structures.
hwsl2 library, test and benchmark: Hashing with SL2
hwsl2-bytevector library: A hashed byte-vector based on algebraic hashes and finger trees
hwsl2-reducers library: Semigroup and Reducer instances for Data.Hash.SL2
hybrid-vectors library: Hybrid vectors e.g. Mixed Boxed/Unboxed vectors
idempotent library and test: Idempotent monoids
identifiers library, test and benchmarks: Numeric identifiers for values.
idna library: Implements IDNA (RFC 3490).
IDynamic library: Indexable, serializable form of Data.Dynamic
ieee754-parser library
implicit-params library: Named and unnamed implicit parameters with defaults.
impossible library: ...
incremental library and test: incremental update library
incremental-computing library, test and benchmark: Incremental computing
incremental-maps library, test and benchmark: Package for doing incremental computations on maps
increments library and test: type classes for incremental updates to data
indexation library: Tools for entity indexation
indexed-list-literals library and test: Type safe indexed list literals
indexed-profunctors library: Utilities for indexed profunctors
indexed-traversable library: FunctorWithIndex, FoldableWithIndex, TraversableWithIndex
indexed-traversable-instances library, test and benchmarks: More instances of FunctorWithIndex, FoldableWithIndex, TraversableWithIndex
IndexedList library: ...
indices library, test and benchmark: Multi-dimensional statically bounded indices.
infinite-search library: Exhaustively searchable infinite sets.
inflist library and test: An infinite list type and operations thereon.
ini library and test: Quick and easy configuration files in the INI format.
ini-qq library and test: Quasiquoter for INI
initialize library: Initialization and Deinitialization of 'Storable' values.
inj library: A class for injective (one-to-one) functions
inj-base library: 'Inj' instances for 'base'
instrument library and test: Easy stats/metrics instrumentation for Haskell programs
int-cast library and test: Checked conversions between integral types
intern library: Efficient hash-consing for arbitrary data types
InternedData library, test and benchmark: Data interning (with compact regions where possible)
interpolate library and test: String interpolation done right
interpolatedstring-perl6 library: QuasiQuoter for Perl6-style multi-line interpolated strings
interpolatedstring-qq library: QuasiQuoter for Ruby-style multi-line interpolated strings.
interpolatedstring-qq-mwotton library: DO NOT USE THIS. interpolatedstring-qq works now.
interpolatedstring-qq2 library and test: QuasiQuoter for multi-line interpolated strings
Interpolation library: Multiline strings, interpolation and templating.
Interpolation-maxs library: Multiline strings, interpolation and templating.
interpolator library and test: Runtime interpolation of environment variables in records using profunctors
interval-functor library and test: Intervals of functors.
IntervalMap library, tests and benchmarks: Containers for intervals, with efficient search.
intset library, tests and benchmark: Pure, mergeable, succinct Int sets.
invariant library and test: Haskell98 invariant functors
invertible library and test: bidirectional arrows, bijective functions, and invariant functors
invertible-hlist library: invertible functions and instances for HList
involutive-semigroups library: Semigroups with involution.
io-storage library: A key-value store in the IO monad.
io-streams library and test: Simple, composable, and easy-to-use stream I/O
io-string-like library: Classes to handle Prelude style IO functions for different datatypes
ioctl library: Type-safe I/O control package
IORefCAS library and test: Atomic compare and swap for IORefs and STRefs.
ipld-cid library and test: IPLD Content-IDentifiers <https://github.com/ipld/cid>
irc library and test: A small library for parsing IRC messages.
irc-fun-messages library: Types and functions for working with the IRC protocol.
irc-fun-types library: Common types for IRC related packages
ireal library: Real numbers and intervals with relatively efficient exact arithmetic.
is library and test: Generic pattern predicates
isbn library and test: ISBN Validation and Manipulation
isevaluated library: Check whether a value has been evaluated
IsNull library and test: A typeclass to determine if a given value is null.
iso3166-country-codes library: A datatype for ISO 3166 country codes
iso639 library: ISO-639-1 language codes
iso8583-bitmaps library: Parse and merge ISO 8583-style bitmaps
iso8601-duration library and test: Types and parser for ISO8601 durations
it-has library and test: Automatically derivable Has instances.
iteratee library, test and benchmark: Iteratee-based I/O
iteratee-compress library: Enumeratees for compressing and decompressing streams
iteratee-mtl library and program: Iteratee-based I/O
iteratee-parsec library: Package allowing parsec parser initeratee
iteratee-stm library: Concurrent iteratees using STM
iterIO library: Iteratee-based IO with pipe operators
ix-shapable library: Reshape multi-dimensional arrays.
javaclass library and test: Java class files
Jdh library: A Json implementation for Haskell, with JavaScript Values and Encoding/Decoding
jinquantities library, program and tests: Unit conversion and manipulation library.
joinlist library: Join list - symmetric list type
joint library: Trying to compose non-composable
json-alt library: Union 'alternative' or Either that has untagged JSON encoding.
json-autotype library, program and tests: Automatic type declaration for JSON input data
json-extra library: Utility functions to extend Aeson
json-incremental-decoder library and test: Incremental JSON parser with early termination and a declarative DSL
json-pointer library: JSON Pointer parsing and interpretation utilities
json-query library and test: Kitchen sink for querying JSON
json-schema library and test: Types and type classes for defining JSON schemas.
json-state library: Keep program state in JSON files.
json-syntax library, test and benchmark: High-performance JSON parser and encoder
json-togo library: Effectful parsing of JSON documents
json-tokens library, test and benchmark: Tokenize JSON
json2 library: Library provides support for JSON.
json2-types library: Defined JSON data types and function for renders JSON to string.
jsons-to-schema library, program and test: JSON to JSON Schema
jsonschema-gen library and test: JSON Schema generator from Algebraic data type
judy library and test: Fast, scalable, mutable dynamic arrays, maps and hashes
jump library and tests: Nothing to see here, move along
JuPyTer-notebook library and program: JuPyTer notebook parser
kafka library: TBA
kanji library, program, test and benchmark: Perform 漢字検定 (Japan Kanji Aptitude Test) level analysis on Japanese Kanji
karakuri library: Good stateful automata
katip library, test and benchmark: A structured logging framework.
katip-datadog library and test: Datadog scribe for the Katip logging framework
katip-elasticsearch library, test and benchmark: ElasticSearch scribe for the Katip logging framework.
katip-logzio library and test: Logz.IO scribe for the Katip logging framework
katydid library, program, test and benchmark: A haskell implementation of Katydid
kd-tree library: A simple k-d tree implementation
kdt library, tests and benchmark: Fast and flexible k-d trees for various types of point queries.
keyed library: Generic indexing for many data structures
keyword-args library, program and test: Extract data from a keyword-args config file format
kicad-data library and test: Parser and writer for KiCad files.
kickchan library and test: Kick Channels: bounded channels with non-blocking writes
kind-apply library: Utilities to work with lists of types
kind-generics library: Generic programming in GHC style for arbitrary kinds and GADTs.
kind-generics-th library and test: Template Haskell support for generating `GenericK` instances
kleene-list library and test: A list type based on the Kleene star and plus.
kontra-config library: JSON config file parsing based on unjson
lambda-sampler library and test: Boltzmann sampler utilities for lambda calculus.
language-conf library, programs and test: Conf parsers and pretty-printers for the Haskell programming language.
language-hcl library, test and benchmark: HCL parsers and pretty-printers for the Haskell programming language.
laop library, test and benchmark: Matrix programming library
largeword library and test: Provides Word128, ...
layered-state library and benchmark: Control structure similar to Control.Monad.State, ...
layouting library: ...
lazy-hash library: Identifiers for not-yet-computed values
lazy-hash-cache library: Storing computed values for re-use when the same program runs again.
lazy-priority-queue library, program and test: Lazy-Spined Monadic Priority Queues
lazyarray library: Efficient implementation of lazy monolithic arrays (lazy in indexes).
lazyset library, tests and benchmark: Set and Map from lazy/infinite lists.
lens library, tests and benchmarks: Lenses, Folds and Traversals
lens-accelerate library: Instances to mix lens with Accelerate
lens-action library: Monadic Getters and Folds
lens-datetime library: Lenses for Data.Time.* types
lens-family library: Lens Families
lens-family-core library: Haskell 2022 Lens Families
lens-family-th library and test: Generate lens-family style lenses
lens-labels library: Integration of lenses with OverloadedLabels.
lens-properties library: QuickCheck properties for lens
lens-th-rewrite library and programs: Rewrites Template Haskell splices using the API
lens-time library: lens for Data.Time
lens-utils library: Collection of missing lens utilities.
lenses library: Simple Functional Lenses
lensref library and test: References which can be joined and on which lenses can be applied
lenz library: Van Laarhoven lenses
lenz-mtl library: mtl operations with Van Laarhoven lenses
lenz-template library: Van Laarhoven lens templates
lhae program: Simple spreadsheet program
lhe library: Parser and writer for Les-Houches event files
libBF library, program and test: A binding to the libBF library.
librdkafka library: TBA
libroman library and test: Use Roman Numerals as a Numeric Datatype (sort of)
Limit library: Wrapper for data that can be unbounded
line-size program: Display the number of bytes of each line
linear-maps library and programs: Finite maps for linear use
lingo library, program and test: File extension based programming language detection
link-relations library: Use web link relation types (RFC 5988) in Haskell
linkedhashmap library, test and benchmark: Persistent LinkedHashMap data structure
list-fusion-probe library and test: testing list fusion for success
list-grouping library: Functions for grouping a list into sublists
list-singleton library: Easily and clearly create lists with only one element in them.
list-tries library and test: Tries and Patricia tries: finite sets and maps for list keys
list-tuple library and test: List-like operations for tuples
list-zip-def library: Provides zips with default values.
list-zipper library and test: A list zipper
lists library: Functions for dealing with lists
lists-flines library: Additional data and structures to some 'String'-related lists.
listsafe library: Safe wrappers for partial list functions, supporting MonadThrow.
ListZipper library: Simple zipper for lists
literals library: Non-overloaded functions for concrete literals.
llrbtree library: Purely functional sets and heaps
llvm-base-types library: The base types for a mostly pure Haskell LLVM analysis library
llvm-data-interop library: A low-level data interoperability binding for LLVM
lockfree-queue library and test: Michael and Scott lock-free queues.
log-utils programs: Utils for working with logs
logfloat library: Log-domain floating point numbers
longboi library: Dependently-typed linked list implementation
lookup-tables library and test: Statically generate lookup tables using Template Haskell.
lrucache library: a simple, pure LRU cache
lrucaching-haxl library: Combine lrucaching and haxl.
LTree library: Tree with only leaves carrying the data.
lub library: information operators: least upper bound (lub) and greatest lower bound (glb)
luhn library: An implementation of Luhn's check digit algorithm.
lz4-bytes library and test: Bindings to LZ4
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-encoding library: Transcode encodings with machines.
macho library: Parser for Mach-O object format.
magma library and test: magma is an algebraic structure.
make-monofoldable-foldable library: Make a MonoFoldable type into an ordinary Foldable type.
Map library and test: Class of key-value maps
Mapping library: Mapping
markov library: Simple interpreter for Markov's normal algorithms
markup library: Abstraction for HTML-embedded content
mason library: Fast and extensible bytestring builder
massiv library and test: Massiv (Массив) is an Array Library.
massiv-io library and tests: Import/export of Image files into massiv Arrays
massiv-test library and tests: Library that contains generators, properties and tests for Massiv Array Library.
math-interpolate library: Class for interpolation of values
math-metric library: Typeclass for metric spaces
matrices library, test and benchmark: native matrix based on vector
maybe-justify library and test: Simple higher order function for Maybe
mbox library: Read and write standard mailbox files.
means library: calculate varieties of mean/average using semigroup.
Measure library: A library for units of measurement
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
medea library and tests: A schema language for JSON.
median-stream library and test: Constant-time queries for the median of a stream of numeric data.
meep library and tests: A silly container
memis program: Memis Efficient Manual Image Sorting
memoize library and tests: A memoization library
memorable-bits library, program, test and benchmark: Generate human memorable strings from binary data.
MemoTrie library and program: Trie-based memo functions
merkle-log library, test and benchmark: Merkle Tree Logs
messagepack library and test: Serialize instance for Message Pack Object
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
metadata library: metadata library for semantic web
metar library, program and test: Australian METAR
metar-http library, program and test: HTTP for METAR
metric library and test: Metric spaces.
metrics library and test: High-performance application metric tracking
mgeneric library: Generics with multiple parameters
microlens library: A tiny lens library with no dependencies
microlens-contra library: True folds and getters for microlens
microlens-each library: 'each' for microlens
microlens-ghc library: microlens + array, bytestring, containers, transformers
microlens-mtl library: microlens support for Reader/Writer/State from mtl
microlens-platform library: microlens + all batteries included (best for apps)
microlens-th library and test: Automatic generation of record lenses for microlens
minecraft library: TBA
mini-egison library, program and test: Template Haskell Implementation of Egison Pattern Matching
minilens library: A minimalistic lens library, providing only the simplest, most basic lens functionality.
minlen library: Express the minimum length of a container in its type
minst-idx library and test: Read and write IDX data that is used in e.g. the MINST database.
mlist library: Monadic List alternative to lazy I/O
mmsyn2-array library: ...
mmsyn5 library: Various additional operations on lists (some with intermediate Monads)
mnist-idx library and test: Read and write IDX data that is used in e.g. the MNIST database.
model library and tests: Derive a model of a data type using Generics
monad-branch library: Monadic abstraction for computations that can be branched and run independently.
monad-primitive library: Type class for monad transformers stack with pirimitive base monad.
monad-state library: Utility library for monads, particularly those involving state.
monad-statevar library and test: Concise, overloaded accessors for IORef, STRef, TVar
monad-supply library: Stateful supply monad
mono-foldable library: Folds for monomorphic containers
mono-traversable library, test and benchmark: Type classes for mapping, folding, and traversing monomorphic containers
mono-traversable-instances library: Extra typeclass instances for mono-traversable
mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
mono-traversable-wrapper library: Wrapper providing Foldable instance for MonoFoldables.
monoid library: Monoid type classes, designed in modular way, ...
monoid-extras library and benchmark: Various extra monoid-related definitions and utilities
monoid-record library: Support for modifying record fields of monoidal type
monoid-subclasses library and test: Subclasses of Monoid
monoid-transformer library: Monoid counterparts to some ubiquitous monad transformers
monoidal-containers library: Containers with monoidal accumulation
monoidplus library: Extra classes/functions about monoids
monoids library: Deprecated: Use 'reducers'
monomorphic library: Library to convert polymorphic datatypes to/from its monomorphic represetation
months library: MonthName
monus library and test: a 'Monus' is a commutative monoid that allows a notion of substraction.
morphisms library: It's all about functions
morphisms-functors library: Functors, theirs compositions and transformations
morphisms-functors-inventory library: Inventory is state and store
morphisms-objects library: Algebraic structures
mrm library: Modular Refiable Matching, first-class matches
msgpack library and test: A Haskell implementation of MessagePack
msgpack-aeson library and test: Aeson adapter for MessagePack
msgpack-binary library, program, test and benchmark: A Haskell implementation of MessagePack
msgpack-rpc-conduit library and test: A MessagePack-RPC Implementation
msgpack-types library and test: A Haskell implementation of MessagePack.
MSQueue library: Michael-Scott queue.
mtree library: Tree with Meta and Content parameters
multi-trie library and test: Trie of sets, as a model for compound names having multiple values
multibase library and test: Self-identifying base encodings, ...
multihash library and program: Multihash library and CLI executable
multihash-cryptonite library and tests: Self-identifying hashes, implementation of <https://github.com/multiformats/multihash>
multihashmap library: hashmap from keys to hashsets
multipart-names library and test: Handling of multipart names in various casing styles
multirec-binary library: Generic Data.Binary instances using MultiRec.
multivector library and test: Vectors of packed tuples
murmur-hash library: MurmurHash2 implementation for Haskell.
murmur3 library and test: Pure Haskell implementation of the MurmurHash3 x86_32 algorithm.
murmurhash3 library: 32-bit non-cryptographic hashing
mutable library and benchmark: Automatic piecewise-mutable references for your types
mutable-containers library, test and benchmarks: Abstactions and concrete implementations of mutable containers
mutable-iter library: iteratees based upon mutable buffers
mutable-lens library, tests and benchmark: Interoperate mutable references with regular lens
mwc-random-accelerate library and benchmark: Generate Accelerate arrays filled with high quality pseudorandom numbers
mx-state-codes library and test: ISO 3166-2:MX State Codes and Names
MyPrimes library, program and benchmark: Generate all primes
n-ary-functor library and test: An n-ary version of Functor
nagios-perfdata library and test: Parse Nagios performance data.
named-records library: Flexible records with named fields.
named-sop library and test: Dependently-typed sums and products, tagged by field name
names library: Type level names.
namespace library and test: A Generic Haskell library for managing namespaces
nat library: Lazy binary natural numbers
natural-number library: Natural numbers tagged with a type-level representation of the number.
natural-numbers library: Natural numbers
naturals library: Constructors and related functions for natural numbers
nbt library and test: A parser/serializer for Minecraft's Named Binary Tag (NBT) data format.
ndjson-conduit library: Conduit-based parsing and serialization for newline delimited JSON.
neither library: Provide versions of Either with good monad and applicative instances. (deprecated)
nested-sequence library and test: List-like data structures with O(log(n)) random access
NestedFunctor library: Nested composition of functors with a type index tracking nesting.
nestedmap library and test: A library for nested maps
network-address library, program and test: IP data structures and textual representation
network-conduit library: Stream socket data using conduits. (deprecated)
network-data library: Library for network data structures and their serialization.
network-enumerator library: Enumerators for network sockets
network-msgpack-rpc library and test: A MessagePack-RPC Implementation
network-stream library: ByteString and Text streams for networking
newbase60 library and test: Encodes and decodes numbers using Tantek Çelik's New Base 60 number system.
NewBinary library: A binary I/O library
newtype-zoo library: Newtype Wrapper Zoo
nextstep-plist library: NextStep style plist parser and printer
nf library: NF data type to statically enforce normal form
ngrams-loader library and program: Ngrams loader based on http://www.ngrams.info format
niagra library and test: High performance CSS EDSL
NineP library: 9P2000 in pure Haskell
NMap library: A transparent nested Map structure
no-value library: A type class for choosing sentinel-like values
non-empty library and test: List-like structures with static restrictions on the number of elements
non-empty-sequence library: Non-empty sequence
non-empty-text library and tests: Non empty Data.Text type
non-empty-zipper library and test: The Zipper for NonEmpty
NonEmpty library: Library providing a non-empty list datatype, and total functions operating on it
nonempty-alternative library: NonEmpty for Alternative types
nonempty-lift library and test: nonempty structure
nonempty-vector library and test: Non-empty vectors
nonempty-zipper library and test: A non-empty comonadic list zipper
NonEmptyList library: A list with a length of at least one.
normalization-insensitive library, test and benchmark: Normalization insensitive string comparison
notzero library: A data type for representing numeric values, except zero.
ntype library: N-ary sum/product types
num-non-negative library: Non-negative numbers
number-length library, test and benchmark: Number of digits in a number in decimal and hexadecimal representation.
numbered-semigroups library: A sequence of semigroups, for composing stuff in multiple spatial directions.
numbering library: Combinators for creating bijections from some type to the natural numbers.
numbers library and test: Various number types
NumInstances library: Instances of numeric classes for functions and tuples
NumLazyByteString library: Num, Enum, Eq, Integral, Ord, Real, and Show instances for Lazy ByteStrings
Object library: Object oriented programming for haskell using multiparameter typeclasses.
objectid library and test: Rather unique identifier for things that need to be stored
ObjectName library: Explicitly handled object names
observable-sharing library: Simple observable sharing
Octree library, test and benchmark: Simple unbalanced Octree for storing data about 3D points
OddWord library, test and benchmark: Provides a wrapper for deriving word types with fewer bits.
oi library and programs: Library for purely functional lazy interactions with the outer world.
Omega library and test: Integer sets and relations using Presburger arithmetic
once library and test: memoization for IO actions and functions
oneOfN library: Anonymous coproduct type
oneormore library: A never-empty list type.
OneTuple library: Singleton Tuple
Only library: The 1-tuple type or single-value "collection"
onpartitions library: partition lenses
oo-prototypes library: Support for OO-like prototypes
open-adt library: Open algebraic data types.
open-adt-tutorial library and program: Open algebraic data type examples.
open-union library and program: Extensible, type-safe unions.
open-witness library and test: open witnesses
OpenAFP library: IBM AFP document format parser and generator
OpenAFP-Utils programs: Assorted utilities to work with AFP data streams
opench-meteo library: A Haskell implementation of the Swiss Meteo Net data API
openexchangerates library: Fetch exchange rates from OpenExchangeRates.org
openpgp library and test: Implementation of the OpenPGP message format
openpgp-asciiarmor library, test and benchmark: OpenPGP (RFC4880) ASCII Armor codec
OptDir library: The OptDir type for representing optimization directions.
optics library, test and benchmarks: Optics as an abstract interface
optics-core library: Optics as an abstract interface: core definitions
optics-extra library: Extra utilities and instances for optics-core
optics-th library and test: Optics construction using TemplateHaskell
optics-vl library: Utilities for compatibility with van Laarhoven optics
optimal-blocks library, program, test and benchmark: Optimal Block boundary determination for rsync-like behaviours
option library: A strict version of Maybe
optional-args library: Optional function arguments
ord-adhoc library: Creating Ord instances instantly
order-maintenance library and test: Algorithms for the order maintenance problem with a safe interface
order-statistic-tree library, test and benchmark: Order statistic trees based on weight-balanced trees
ordered-containers library: Set- and Map-like types that remember the order elements were inserted
OrderedBits library, test and benchmark: Efficient ordered (by popcount) enumeration of bits
orders library: basic orders
oref library and test: Owned references in the Ownership Monad
org-mode library and test: Parser for Emacs org-mode files.
orgmode library and test: Org Mode library for haskell
orgmode-parse library and test: A collection of Attoparsec combinators for parsing org-mode flavored documents.
origami library and test: An un-SYB framework for transforming heterogenous data through folds
osm-conduit library and test: Parse and operate on OSM data in efficient way
osx-ar library: Parser for OS X static archive format.
overloaded-records library and test: Overloaded Records based on current GHC proposal.
pack library: Bidirectional fast ByteString packer/unpacker
packed-dawg library, test and benchmark: Generation and traversal of highly compressed directed acyclic word graphs.
packed-multikey-map library and test: Efficient “spreadsheet table” like maps with multiple marginals
packer library and test: Fast byte serializer and unserializer
packer-messagepack library and test: MessagePack Serialization an Deserialization for Packer
packman library and tests: Serialization library for GHC
pager library and program: Open up a pager, like 'less' or 'more'
pagination library and test: Framework-agnostic pagination boilerplate
palette library: Utilities for choosing and creating color schemes.
pandora library: A box of patterns and paradigms
parameterized-data library: Parameterized data library implementing lightweight dependent types
parse-gcstats library and test: Parse machine-readable GHC GC stats.
parsergen library and test: TH parser generator for splitting bytestring into fixed-width fields
parsestar library and programs: NMR-STAR file format parser.
partial-order library and test: Provides typeclass suitable for types admitting a partial order
partial-records library: Template haskell utilities for constructing records with default values
password library and tests: Hashing and checking of passwords
password-instances library and tests: typeclass instances for password package
password-types library and tests: Types for handling passwords
patch-combinators library: A library for patching functions and data structures
patches-vector library and tests: Patches (diffs) on vectors: composable, mergeable, and invertible.
PathTree library and test: A tree used to merge and maintain paths
pattern-trie library, tests and benchmark: Pattern tries
Peano library: simple Peano numbers
peano library: Peano numbers
peano-inf library: Lazy Peano numbers including observable infinity value.
PeanoWitnesses library: GADT type witnesses for Peano-style natural numbers.
pecoff library: Parser for PE/COFF format.
pedestrian-dag library: A pedestrian implementation of directed acyclic graphs
pem library and test: Privacy Enhanced Mail (PEM) format reader and writer.
peparser library: A parser for PE object files.
PerfectHash library: A perfect hashing library for mapping bytestrings to values.
perfecthash library, test and benchmark: A perfect hashing library for mapping bytestrings to values.
perhaps library and test: Perhaps, a monad
persist library and test: Minimal serialization library with focus on performance
persist-state library and test: Serialization library with state and leb128 encoding
Persistence library and test: A versatile library for topological data analysis.
persistent-equivalence library: Persistent equivalence relations (aka union-find)
persistent-refs library: Haskell references backed by an IntMap for persistence and reversibility.
persistent-vector library, test and benchmark: A persistent sequence based on array mapped tries
pez library and test: A Pretty Extraordinary Zipper library
pgp-wordlist library and tests: Translate between binary data and a human-readable collection of words.
phasechange library: Freezing, thawing, and copy elision
phash library and tests: Haskell bindings to pHash, the open source perceptual hash library
phone-metadata library and test: Phonenumber Metadata - NOTE: this is now deprecated!
phone-numbers library and test: Haskell bindings to the libphonenumber library
phonetic-languages-filters-array library: Allows to change the structure of the function output.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text (usually, ...
pipes-files library and tests: Fast traversal of directory trees using pipes
pipes-interleave library: Interleave and merge streams of elements
Piso library: Partial isomorphisms
pkcs10 library and test: PKCS#10 library
pktree library: Implementation of the PKTree spatial index data structure
plaid library, program and test: Plaid.com api integration library
plailude library: plaimi's prelude
planar-graph library: A representation of planar graphs
plucky library and test: A library and technique for handling errors via plucking constraints
plur library and test: Plurality monad: Zero, one, or at least two.
point-octree library and tests: Point octree, with bounding boxes
pointed library: Pointed and copointed data
pointedlist library: A zipper-like comonad which works as a list, tracking a position.
poly-arity library: Tools for working with functions of undetermined arity
poly-control library: This package provides abstraction for polymorphic controls, ...
poly-rec library: Polykinded extensible records
polydata library and test: Wrap together data and it's constraints.
polymap library and test: Polygonal maps
polyToMonoid library: Polyvariadic functions mapping to a given monoid
polytypeable library: Typeable for polymorphic types.
polytypeable-utils library: Utilities for polytypeable.
polyvariadic library and test: Creation and application of polyvariadic functions
pool library: Thread-safe resource pools. (deprecated)
popkey library and test: Static key-value storage backed by poppy
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
possible library: Three valued Data.Maybe
possibly library: type Possibly a = Either String a
postgresql-copy-escape library: Format data to feed to a PostgreSQL COPY FROM statement
prairie library and test: A first class record field library
pred-set library: Simple cached predicates
pred-trie library, test and benchmark: Predicative tries
predicate-class library: Helper class for passing context along a predicate value
predicate-transformers library: A library for writing predicates and transformations over predicates in Haskell
predicate-typed library and tests: Predicates, Refinement types and Dsl
predictive library: Predict the future, backtrack on failure
prednote library and tests: Evaluate and display trees of predicates
prednote-test library and programs: Tests and QuickCheck generators to accompany prednote.
prefix-units library and test: A basic library for SI/binary prefix units
prelude-plus program: Prelude for rest of us
pretty-hex library: A library for hex dumps of ByteStrings
pretty-loc library: Tracking and highlighting of locations in source files
pretty-tree library: Pretty-print trees
preview library: The method of previewing data (instead of wholly show-ing it)
prim-instances library and test: Prim typeclass instances
prim-uniq library: Opaque unique identifiers in primitive state monads
primitive library and test: Primitive memory-related operations
primitive-addr library: Addresses to unmanaged memory
primitive-atomic library and test: Wrappers for primops around atomic operations
primitive-convenience library: convenience class for PrimMonad m/PrimState m
primitive-foreign library and test: using the `Prim` interface for the FFI
primitive-offset library: Types for offsets into unboxed arrays
primitive-simd library and benchmark: SIMD data types and functions
primitive-stablename library: primitive operations on StableNames
primitive-unaligned library and test: Unaligned access to primitive arrays
primitive-unlifted library and test: Primitive GHC types with unlifted types inside
PrimitiveArray library, test and benchmark: Efficient multidimensional arrays
PrimitiveArray-Pretty library and test: Pretty-printing for primitive arrays
print-info library: Can be used to coordinate the printing output.
priority-queue library: Simple implementation of a priority queue.
procrastinating-structure library: Pure structures that can be incrementally created in impure code
procrastinating-variable library: Haskell values that cannot be evaluated immediately.
product-isomorphic library and test: Weaken applicative functor on products
profunctor-arrows library: Profunctor arrows
profunctor-misc library: Profunctor miscellany
profunctor-optics library and program: A compact optics library compatible with the typeclasses in profunctors.
proj4-hs-bindings library: Haskell bindings for the Proj4 C dynamic library.
prolens library and tests: Profunctor-based lightweight implementation of optics
propeller library: A Simple Propagator Library
property-list library: Apple property list parser
proto-lens library and tests: A lens-based implementation of protocol buffers in Haskell.
proto-lens-arbitrary library: Arbitrary instances for proto-lens.
proto-lens-combinators library and test: Utilities functions to proto-lens.
proto-lens-descriptors library: Protocol buffers for describing the definitions of messages.
proto-lens-optparse library: Adapting proto-lens to optparse-applicative ReadMs.
proto-lens-protobuf-types library: Basic protocol buffer message types.
proto-lens-protoc library and program: Protocol buffer compiler for the proto-lens library.
protobuf library and test: Google Protocol Buffers via GHC.Generics
protobuf-native library, program and tests: Protocol Buffers via C++
protobuf-simple library, program and test: Simple Protocol Buffers library (proto2)
proxied library: Make functions consume Proxy instead of undefined
proxy library: proxy helpers
proxy-kindness library: A library for kind-polymorphic manipulation and inspection of Proxy values
proxy-mapping library: Mapping of Proxy Types
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
psql-utils library: PostgreSQL Simple util tools.
ptr library and test: Abstractions for operations on pointers
publicsuffix library, test and benchmark: The publicsuffix list exposed as proper Haskell types
PUH-Project library: This is a package which includes Assignments, Email, ...
pure-priority-queue library: A pure priority queue.
pure-priority-queue-tests program: Tests for the pure-priority-queue package
purebred-email library, program and test: types and parser for email messages (including MIME)
pureMD5 library and test: A Haskell-only implementation of the MD5 digest (hash) algorithm.
pvar library and test: Mutable variable with primitive values
QLearn library: A library for fast, easy-to-use Q-learning.
qm-interpolated-string library and test: Implementation of interpolated multiline strings
qr library and program: Pure Haskell QR encoder library and command line tool
qr-imager library and test: Library to generate images.
qr-repa library and program: Library to generate QR codes from bytestrings and objects and scale image files
QuadEdge library: QuadEdge structure for representing triangulations
quadratic-irrational library and tests: An implementation of quadratic irrationals
QuadTree library and test: QuadTree library for Haskell, with lens support.
quandl-api library: Quandl.com API library
quantities library, program and tests: Unit conversion and manipulation library.
querystring-pickle library and test: Picklers for de/serialising Generic data types to and from query strings
queue library: Abstraction typeclasses for queue-like things.
quick-schema library and test: Slimmed down json schema language and validator
quickset library: Very fast and memory-compact query-only set and map structures
raft library: Miscellaneous Haskell utilities for data structures and data manipulation.
rakhana library: Stream based PDF library
ral library and benchmark: Random access lists
ral-lens library: Length-indexed random access lists: lens utilities.
ral-optics library: Length-indexed random access lists: optics utilities.
random-extras library: Additional functions for random values.
random-string library: Generate a random base 16, 58, or 64 string
Range library: Data structure for managing ranges
range library and test: An efficient and versatile range library.
range-set-list library and test: Memory efficient sets with ranges of elements.
Ranged-sets library and test: Ranged sets for Haskell
ranges library: Ranges and various functions on them.
rank1dynamic library and test: Like Data.Dynamic/Data.Typeable but with support for rank-1 polymorphic types
rank2classes library and tests: standard type constructor class hierarchy, only with methods of rank 2 types
rcu library, programs and benchmarks: Read-Copy-Update for Haskell
rdf library and benchmark: Representation and Incremental Processing of RDF Data
record-aeson library and test: Instances of "aeson" classes for the "record" types
record-encode library and tests: Generic encoding of records
records library: A flexible record system
records-th library: Template Haskell declarations for the records package
recursion-schemes-ix library and test: Recursion schemes over indexed Functors
red-black-record library and tests: Extensible records and variants indexed by a type-level Red-Black tree.
redis-resp library: REdis Serialization Protocol (RESP) implementation.
reducers library: Semigroups, specialized containers and a general map/reduce framework
reedsolomon library, programs, test and benchmark: Reed-Solomon Erasure Coding in Haskell
Ref library: Generic Mutable Ref Abstraction Layer
ref library: Generic Mutable Ref Abstraction Layer
ref-extras library: Extra stuff for mutable references
refcount library and test: Container with element counts
reference library: A class for references in Haskell
refined library and tests: Refinement types with static and runtime checking
refined-http-api-data library: http-api-data instances for refined types
reflection library and test: Reifies arbitrary terms into types that can be reflected back into terms
reflection-extras library: Utilities for the reflection package
reflection-without-remorse library: Efficient free and operational monads.
RefSerialize library: Write to and read from ByteStrings maintaining internal memory references
regex-easy library: sugar for regex-pcre
regex-type library: Type-level regular expressions
regex-wrapper library: Types that can only be constructed if they match a regular expression
regexp-tries library: Regular Expressions on Tries.
regular-xmlpickler library: Generic generation of HXT XmlPickler instances using Regular.
rei program: Process lists easily
reify library and program: Serialize data
reinterpret-cast library, test and benchmark: Memory reinterpretation casts for Float/Double and Word32/Word64
relapse library and test: Sensible RLP encoding
relative-date library: Durations and generalized time parsing
relevant-time library: humanised relevant time
reord library: Ad-hoc Ord instances
reorderable library: Define compound types that do not depend on member order.
repa-linear-algebra library: HMatrix operations for Repa.
resource-pool library: A high-performance striped resource pooling implementation
resource-pool-catchio library: Fork of resource-pool, with a MonadCatchIO constraint
resourcet library and test: Deterministic allocation and freeing of scarce resources.
resourcet-pool library: A small library to convert a Pool into an Acquire
restricted-workers library: Running worker processes under system resource restrictions
result library and test: Encode success or at least one error
reverse-arguments library: Reverse the arguments of arbitrary functions.
reverse-geocoding library: Simple reverse geocoding using OpenStreeMap
RFC1751 library and test: RFC-1751 library for Haskell
riff library and programs: RIFF parser for Haskell
ring-buffer library and tests: A concurrent, mutable ring-buffer
ring-buffers library and tests: mutable ring buffers with atomic updates in GHC Haskell
ripple-federation library: Utilities and types to work with the Ripple federation protocol
rivers library: Rivers are like Streams, but different.
RLP library and test: RLP serialization as defined in Ethereum Yellow Paper
rng-utils library, test and benchmark: RNG within an IORef for convenient concurrent use
roc-cluster library and test: ROC online clustering algorithm
roles library: Composable class-based roles
rolling-queue library: Bounded channel for STM that discards old entries when full
rope-utf16-splay library and test: Ropes optimised for updating using UTF-16 code units and row/column pairs.
rose library and test: rose trees
rose-trees library, test and benchmark: Various trie implementations in Haskell
rose-trie library: Trees with polymorphic paths to nodes, combining properties of Rose Trees and Tries.
rosebud library and test: Common rose tree/forest functions
roundtrip-aeson library and test: Un-/parse JSON with roundtrip invertible syntax definitions.
route-planning library and test: A library and utilities for creating a route
row-types library, test and benchmark: Open Records and Variants
rowrecord library: Build records from lists of strings, as from CSV files.
rset library and test: Range set
rstream library: stream-fusion framework from vector
rtorrent-state library and test: Parsing and manipulation of rtorrent state file contents
ruby-marshal library and test: Parse a subset of Ruby objects serialised with Marshal.dump.
ruin library and test: Pliable records
run-haskell-module library: Running newly generated Haskell source module.
run-st library: runST without boxing penalty
runmany program: Run multiple commands, interleaving output and errors
runmemo library and test: A simple memoization helper library
s-cargot library, program and tests: A flexible, extensible s-expression library.
s-cargot-letbind library and test: Enables let-binding and let-expansion for s-cargot defined S-expressions.
s-expression library and program: simple general-purpose s-expressions
safe-freeze library: Support for safely freezing multiple arrays in the ST monad.
safe-globals library: Safe top-level mutable variables which scope like ordinary values
safe-length library and test: Tired of accidentally calling length on tuples? Relief at last!
safecopy library and tests: Binary serialization with version control.
safecopy-migrate library: Making SafeCopy migrations easier
safecopy-store library and test: Binary serialization with version control.
safeint library and test: overflow-checked Int type
scan-metadata library: Metadata types for Albedo Scanners
schedule-planner program: Find the ideal lesson layout
schema library and test: Encoding-independent schemas for Haskell data types.
schemas library and test: schema guided serialization
schematic library and test: JSON-biased spec and validation tool
SciBaseTypes library, test and benchmark: Base types and classes for statistics, sciences and humanities
scientific library, test and benchmark: Numbers represented using scientific notation
scientific-notation library, test and benchmark: Scientific notation intended for tokenization
scythe library and program: Fast CSV lexing on ByteString
sec library: Semantic Editor Combinators.
secret-sharing library and test: Information-theoretic secure secret sharing
securemem library: abstraction to an auto scrubbing and const time eq, memory chunk.
SegmentTree library and program: Data structure for querying the set (or count) of intervals covering given point
semantic-source library and test: Types and functionality for working with source code
semi-iso library: Weakened partial isomorphisms, reversible computations.
semialign library: Align and Zip type-classes from the common Semialign ancestor.
semialign-extras library and test: Extra functions for working with Semialigns
semialign-indexed library: SemialignWithIndex, i.e. izipWith and ialignWith
semialign-optics library: SemialignWithIndex, i.e. izipWith and ialignWith
semibounded-lattices library and test: A Haskell implementation of semibounded lattices
Semigroup library: A semigroup
semigroupoids-syntax library and test: RebindableSyntax using the semigroupoids package
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semiring-num library, test and benchmark: Basic semiring class and instances
semirings library: two monoids as one, in holy haskimony
semver library, test and benchmark: Representation, manipulation, and de/serialisation of Semantic Versions.
separated library and test: A data type with elements separated by values
seqid library: Sequence ID production and consumption
sequence library: A type class for sequences and various sequence data structures.
sequential-index library: Sequential numbers that allow arbitrarily inserting numbers - for containers
serialise-uuid library and test: Encode and decode UUID values in CBOR using uuid-types, cborg and serialise.
serialize-instances library: Instances for Serialize of cereal
Set library, test and benchmark: See README for more info
set-extra library: Functions that could be added to Data.Set.
set-monad library: Set monad
set-of library: Sets of fixed size, with typelits
setoid library and test: A Haskell implementation of setoid
setops library: Uniform names (and Unicode operators) for set operations on data structures.
sets library, test and benchmark: Ducktyped set interface for Haskell containers.
setters library: Small (TH) library to declare setters for typical `record' data type fields.
settings library: Runtime-editable program settings.
sexpresso library and test: A flexible library for parsing and printing S-expression
sext library and test: Lists, Texts, ByteStrings and Vectors with type-encoded length
SG library: Small geometry library for dealing with vectors and collision detection
sgf library: SGF (Smart Game Format) parser
SGplus library: (updated) Small geometry library for dealing with vectors and collision detection
sha1 library and test: SHA-1 Hash
shapely-data library and test: Generics using @(,)@ and @Either@, with algebraic operations and typed conversions
shortcircuit library: Short-circuit values and expressions.
ShortestPathProblems library and test: grammars for TSP and SHP
sieve library: Sieve is an implementation of the Sieve abstract data type.
siggy-chardust library and tests: Rounding rationals to significant digits and decimal places.
sign library and test: Arithmetic over signs and sets of signs
signable library and test: Deterministic serialisation and signatures with proto-lens support
signable-haskell-protoc program: Deterministic serialisation and signatures with proto-lens support
simple-atom library: Atom (or symbol) datatype for fast comparision and sorting.
simple-conduit library and benchmark: A simple streaming I/O library based on monadic folds
simple-enumeration library and test: Finite or countably infinite sequences of values.
simple-index library: Allows simple indexation on any data type
simple-money library: Simple library to handle and interexchange money
simple-pipe library: simple pipeline library like conduit
simple-rope library: Memory-efficient strings with concatenation and splitting.
simplistic-generics library: Generic programming without too many type classes
simtreelo library: Load data organized in a tree.
single-tuple library and test: a class for single tuple implementations
singlethongs library and test: Like singletons, but much smaller.
singleton-dict library: Typelevel balanced search trees via a singletonized Data.Map
singleton-nats library: Unary natural numbers relying on the singletons infrastructure.
singleton-typelits library: Singletons and induction over GHC TypeLits
sink library: An alternative to lazy I/O that doesn't conflate execution with evaluation
siphash library and test: siphash: a fast short input PRF
siren-json library and test: Siren Tools for Haskell
size-based library: Sized functors, for size-based enumerations
SizeCompare library: Fast size comparison for standard containers.
sized library and test: Sized sequence data-types
sized-grid library and tests: Multidimensional grids with sized specified at compile time
sized-vector library: Size-parameterized vector types and functions.
skeletal-set library and test: Skeletal set - a set with equivalence relation different from equality
skip-list library, test and benchmark: An implementation of pure skip lists
sliceofpy library, program and test: Python-ish slicing traversals for Haskell.
slotmap library and test: Pure Haskell slotmap implementation over ST or IO.
small-bytearray-builder library: Serialize to bytes
smallarray library: low-level unboxed arrays, with minimal features.
smallstring library: A Unicode text type, optimized for low memory overhead
smaoin library and test: Utilities for the Smaoin semantic information model.
smash library: Smash products, wedge products, and pointed products
smash-aeson library: Aeson support for the smash library
smash-lens library and test: Optics for the `smash` library
smash-microlens library and test: Optics for the `smash` library
smash-optics library: Optics for the `smash` library using `optics-core`
smith library: Parse arrays of tokens
smoothie library: Smooth curves via several interpolation modes
snowflake library: A loose port of Twitter Snowflake to Haskell. Generates arbitrary precision, ...
some library and test: Existential type: Some
sop-core library: True Sums of Products
sorted library: Efficient, type-safe sorted sequences
sorted-list library and benchmark: Type-enforced sorted lists and related functions.
sorting library: Utils for sorting.
spacepart library: Space partition data structures. Currently only a QuadTree.
sparse library, tests and benchmark: A playground of sparse linear algebra primitives using Morton ordering
sparse-tensor library and test: typesafe tensor algebra library
spdx library, test and benchmark: SPDX license expression language, Extras
spdx-license library and test: SPDX license templates
special-keys library: Simple data types that help me here and there.
SpinCounter library: Lock free Spin Counter
splaytree library and test: Provides an annotated splay tree
split-morphism library and test: Split Epimorphisms and Monomorphisms
spreadsheet library and programs: Read and write spreadsheets from and to CSV files in a lazy way
srcloc library: Data types for managing source code locations.
srec library: Parsing and processing s-records.
sstable library and programs: SSTables in Haskell
st2 library: shared heap regions between local mutable state threads
stable-memo library: Memoization based on argument identity
stable-tree library, program and test: Trees whose branches are resistant to change
stack-prism library and test: Stack prisms
stackage-types library: Shared data types between various Stackage packages
star library: *-semirings
state library: Data.State
state-codes library and test: ISO 3166-2:US state codes and i18n names
state-record library: Better records for State monad states
stateref : Abstraction for things that work like IORef.
StateVar library: State variables
StateVar-transformer library: State variables
static-tensor library, test and benchmark: Tensors of statically known size
static-text library and tests: Lists, Texts, ByteStrings and Vectors of statically known length
std library: TBA
stdata library: Structure Data Library
stdf library and programs: Parse Structured Test Data Format (STDF)
stdio library and test: A simple and high performance IO toolkit for Haskell
stm-linkedlist library: Mutable, doubly linked lists for STM
stm-queue library, test and benchmark: An implementation of a real-time concurrent queue
stm-sbchan library: Bounded channel for STM where item sizes can vary
stm-tlist library: Mutable, singly-linked list in STM
storable library: Storable type class for variable-sized data
storable-complex library: Storable instance for Complex
storable-endian library: Storable instances with endianness
storable-record library and program: Elegant definition of Storable instances for records
storable-tuple library: Storable instance for pairs and triples
storablevector library, test and benchmarks: Fast, packed, strict storable arrays with a list interface like ByteString
storablevector-carray library: Conversion between storablevector and carray
storablevector-streamfusion library and program: Conversion between storablevector and stream-fusion lists with fusion
store library, test and benchmarks: Fast binary serialization
store-core library: Fast and lightweight binary serialization
store-streaming library and test: Streaming interfaces for `store`
Strafunski-ATermLib library: An abstract data type designed for the exchange of tree-like data structures
Stream library: A library for manipulating infinite lists.
stream library, test and benchmark: Initial project template from stack
stream-fusion library: Faster Haskell lists using stream fusion
streaming library: an elementary streaming prelude and general stream type.
streaming-bracketed library and tests: A resource management decorator for "streaming".
streaming-bytestring library and test: Fast, effectful byte streams.
streaming-cassava library and test: Cassava support for the streaming ecosystem
streaming-commons library, test and benchmarks: Common lower-level functions needed by various streaming data libraries
streaming-concurrency library, test and benchmark: Concurrency support for the streaming ecosystem
streaming-conduit library and test: Bidirectional support between the streaming and conduit libraries
streaming-fft library: online streaming fft
streaming-process library and test: Streaming support for running system process
streaming-sort library and test: Sorting streams
streaming-utils library: http, attoparsec, pipes and other utilities for the streaming libraries
streaming-with library: with/bracket-style idioms for use with streaming
strict library: Strict data types and String IO.
strict-base library: Strict versions of base data types.
strict-base-types library: Strict variants of the types provided in base.
strict-containers library and tests: Strict containers.
strict-containers-lens library: Strict containers - Lens instances
strict-containers-serialise library: Strict containers - Serialise instances
strict-data library and tests: A collection of commonly used strict data structures
strict-lens library: Lenses for types in strict package
strict-optics library: Optics for types in strict package
strict-tuple library and test: Strict tuples
strict-tuple-lens library: Optics for the `strict-tuple` library
string-class library: String class library
string-combinators library: Polymorphic functions to build and combine stringlike values
string-conv library: Standardized conversion between string types
string-conversions library and test: Simplifies dealing with different types for strings
string-interpolate library, test and benchmark: Haskell string/text/bytestring interpolation that just works
string-qq library and test: QuasiQuoter for non-interpolated strings, texts and bytestrings.
string-quote library: QuasiQuoter for non-interpolated strings, texts and bytestrings.
string-similarity library, test and benchmark: longest common substring
string-typelits library: Type-level Chars and Strings, with decidable equality.
stringable library: A Stringable type class, in the spirit of Foldable and Traversable
stringprep library and test: Implements the "StringPrep" algorithm
stringtable-atom library: Memoize Strings as Atoms for fast comparison and sorting, with maps and sets
strptime library: Efficient parsing of LocalTime using a binding to C's strptime, ...
structs library and test: Strict GC'd imperative object-oriented programming with cheap pointers.
structured library: Structure (hash) of your data types
structures library, tests and benchmarks: "Advanced" Data Structures
subcategories library and test: Subcategories induced by class constraints
subG library: Some extension to the Foldable and Monoid classes.
subG-instances library: Additional instances for the InsertLeft class from subG package.
sublists library: Allows to split lists into sublists with some patterns by quantity.
success library: A version of Either specialised for encoding of success or failure
suffixarray library and programs: n log n implementation of suffix array.
SuffixStructures library, program and benchmark: Suffix array construction
suffixtree library: Efficient, lazy suffix tree implementation
suitable library: Abstract over the constraints on the parameters to type constructors
summer library and test: An implementation of extensible products and sums
swagger library and test: Implementation of swagger data model
swiss-ephemeris library and test: Haskell bindings for the Swiss Ephemeris C library
swisstable library, test and benchmarks: SwissTable hash map
syb-with-class library and test: Scrap Your Boilerplate With Class
syb-with-class-instances-text library: Scrap Your Boilerplate With Class Text instance
symbiote library and test: Data serialization, communication, and operation verification implementation
symbol library: A 'Symbol' type for fast symbol comparison.
syntax library: Reversible parsing and pretty-printing.
syntax-attoparsec library: Syntax instances for Attoparsec.
syntax-example program: Example application using syntax, a library for abstract syntax descriptions.
syntax-example-json program: Example JSON parser/pretty-printer.
syntax-pretty library: Syntax instance for pretty, the pretty printing library.
syntax-printer library: Text and ByteString printers for 'syntax'.
t-regex library: Matchers and grammars using tree regular expressions
tables library and test: In-memory storage with multiple keys using lenses and traversals
tagged library: Haskell 98 phantom types to avoid unsafely passing dummy arguments
tagged-binary library: Provides tools for serializing data tagged with type information.
tagged-list library: Lists tagged with a type-level natural number representing their length.
tagged-transformer library: Monad transformer carrying an extra phantom type tag
tagging library: Library for tagging data
tai64 library and test: Tai64 Labels for Haskell
Tainted library: Tainted type, and associated operations
Tape library: Bidirectionally infinite streams, akin to the tape of a Turing machine.
taskwarrior library and test: Types and aeson instances for taskwarrior tasks
tbox library: Transactional variables and data structures with IO hooks
TCache library: A Transactional cache with user-defined persistence
telega library: Telegram Bot API binding
template-default library: declaring Default instances just got even easier
template-haskell-optics library: Optics for template-haskell types
Tensor library: Tensor data types
tensor library and tests: A completely type-safe library for linear algebra
terminal-text library: Text data type for styled terminal output, ...
text library: An efficient packed Unicode text type.
text-ansi library: Text styling for ANSI terminals.
text-binary library: Binary instances for text types
text-containers library and test: Memory-efficient string-indexed container types.
text-conversions library and test: Safe conversions between textual types
text-icu library and test: Bindings to the ICU library
text-icu-normalized library and test: Dealing with Strict Text in NFC normalization.
text-locale-encoding library: Encode and decode Text to/from ByteString using TextEncoding
text-manipulate library, test and benchmark: Case conversion, word boundary manipulation, and textual subjugation.
text-normal library and test: Unicode-normalized text
text-plus library and test: Utils for text
text-position library and test: Handling positions in text and position-tagging it.
text-regex-replace library and test: Easy replacement when using text-icu regexes.
text-short library and test: Memory-efficient representation of Unicode text strings
text-stream-decode library, test and benchmarks: Streaming decoding functions for UTF encodings. (deprecated)
text-time library and test: Library for Time parsing from Text into UTCTime
text-trie library and test: An efficient finite map from Text to values, based on bytestring-trie.
text-utf7 library and test: UTF-7 encoding/decoding for Data.Text
text-utf8 library and test: An efficient packed UTF-8 backed Unicode text type.
text1 library and tests: Non-empty values of `Data.Text`.
th-format library and test: Template Haskell based support for format strings
these library: An either-or-both data type.
these-lens library: Lenses for These
these-optics library: Optics for These
these-skinny library: A fork of the 'these' package without the dependency bloat.
thorn library: Datatype Manipulation with Template Haskell
through-text library: Convert textual types through Text without needing O(n^2) instances.
thyme library, tests and benchmark: A faster time library
tickle library and test: A port of @Data.Binary@
tiempo library: Specify time intervals in different units (secs, mins, hours, etc.)
tight-apply library: Tightly binding infix function application
tile library and test: Slippy map tile functionality.
time-interval library: Use a time unit class, but hold a concrete time type.
time-lens library: Lens-based interface to Data.Time data structures
time-patterns library: Patterns for recurring events
time-series library and program: Time series analysis.
time-series-lib library and test: Library for Time Series processing
time-units library: A basic library for defining units of time as types.
timelike library: Type classes for types representing time
timeparsers library: Attoparsec parsers for various Date/Time formats.
timer-wheel library and test: A timer wheel
timeseries library and test: Library for Time Series processing
timezone-detect library and test: Haskell bindings for the zone-detect C library; plus tz-aware utils.
timezone-olson library: A pure Haskell parser and renderer for binary Olson timezone files
timezone-olson-th library: Load TimeZoneSeries from an Olson file at compile time.
timezone-series library: Enhanced timezone handling for Data.Time
tiphys library and test: Navigating and editing JSON data
tmpl program: simple executable for templating
tn library and program: A simple daily journal program
to-string-class library: Converting string-like types to Strings.
to-string-instances library: Instances for the ToString class.
tomato-rubato-openal library: Easy to use library for audio programming.
tomlcheck program: Command-line tool to check syntax of TOML files
topograph library: Directed acyclic graphs.
tostring library: The ToString class
total-map library: Finitely represented total maps
total-maps library: Dense and sparse total maps.
transaction library and tests: Monadic representation of transactions.
Transhare library: ...
traverse-with-class library and test: Generic applicative traversals
tree-diff library, test and benchmark: Diffing of (expression) trees.
tree-render-text library: Configurable text rendering of trees.
tree-traversals library and test: Functions and newtype wrappers for traversing Trees
tree-view library: Render trees as foldable HTML and Unicode art
TreeCounter library: Wait-free Tree Counter
treefold library, test and benchmark: Provides folds which try to combine elements in a balanced way.
Treiber library: Lock free Treiber stack
trial library and tests: Trial Data Structure
trial-tomland library: Trial helper functions for tomland
tries library, test and benchmarks: Various trie implementations in Haskell
true-name library and test: Template Haskell hack to violate module abstractions
truthful library: Typeclass for truthfulness of values
tskiplist library: A Skip List Implementation in Software Transactional Memory (STM)
ttask library, program and test: This is task management tool for yourself, that inspired by scrum.
ttc library and test: Textual Type Classes
ttl-hashtables library and test: Extends hashtables so that entries added can be expired after a TTL
tup-functor library and program: Homogeneous tuples
tuple library: Various functions on tuples
tuple-gen library: Enum instances for tuples where the digits increase with the same speed
tuple-generic library: Generic operations on tuples
tuple-hlist library: Functions to convert between tuples and HLists.
tuple-morph library: Morph between tuples, or convert them from and to HLists.
tuple-ops library: various operations on n-ary tuples via GHC.Generics
tuple-sop library and test: functions on n-ary tuples using generics-sop
tuple-th library: Generate (non-recursive) utility functions for tuples of statically known size
tupleinstances library: Functor, Applicative and Monad for n-ary tuples.
tuples library and test: Small monomorphic tuples
tuples-homogenous-h98 library: Wrappers for n-ary tuples with Traversable and Applicative/Monad instances.
txt library and test: Text
ty library: Typed type representations and equality proofs
type : Dynamic casting library with support for arbitrary rank type kinds.
type-aligned library: Various type-aligned sequence data structures.
type-combinators library: A collection of data types for type-level programming
type-combinators-quote library: Quasiquoters for the 'type-combinators' package.
type-combinators-singletons library: Interop between /type-combinators/ and /singletons/.
type-equality library: Data.Type.Equality compat package
type-equality-check library: Type equality check
type-iso library: Typeclasses for injective relations and isomorphisms between types.
type-level library: Type-level programming library
type-level-integers library and test: Provides integers lifted to the type level
type-level-kv-list library and tests: A module for hash map like object with type level keys.
type-level-natural-number library: Simple type level natural numbers
type-level-natural-number-induction library: High-level combinators for performing inductive operations.
type-level-natural-number-operations library: Basic operations on type-level natural numbers.
type-level-tf library: Type-level programming library (type families)
type-list library: Operations on type-level lists and tuples.
type-map library and tests: Type-indexed maps
type-structure library and test: Type structure analysis
type-unary library: Type-level and typed unary natural numbers, inequality proofs, vectors
typeable-th library and test: Automatic deriving of TypeableN instances with Template Haskell
typed-digits library and tests: Digits, indexed by their base at the type level
typed-duration library: Thread delay and timeout functions with typed arguments
typed-encoding library and tests: Type safe string transformations
typed-encoding-encoding library and tests: Bridge between encoding and typed-encoding packages
typed-streams library and test: A stream based replacement for lists
typed-uuid library: Phantom-Typed version of UUID
typelevel library: Useful type level operations (type families and related operators).
typelevel-tensor library and test: Tensors whose ranks and dimensions type-inferred and type-checked.
typelits-witnesses library: Existential witnesses, singletons, and classes for operations on GHC TypeLits
TypeNat library: Some Nat-indexed types for GHC
typenums library and test: Type level numbers using existing Nat functionality
typeparams library: ...
typerep-map library, test and benchmark: Efficient implementation of a dependent map with types as keys
typesafe-endian library: Enforce endianness with types
typical library: Type level numbers, vectors, list. This lib needs to be extended.
tz library, tests and benchmarks: Efficient time zone handling
tzdata library and test: Time zone database (as files and as a module)
ucd library, test and benchmark: Unicode Character Database — Predicates on characters specified by Unicode
ucl library and test: Datatype and parser for the Universal Configuration Language (UCL) using libucl
udcode library: Does a set of code words form a uniquely decodable code?
udp-conduit library: Simple fire-and-forget conduit UDP wrappers
uglymemo library: A simple (but internally ugly) memoization function.
uid library: Simple unique identifier datatype, serializable and encodable as base32
ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
unamb library and program: Unambiguous choice
unamb-custom library: Functional concurrency with unamb using a custom scheduler.
unboxed library: All the standard sum types but strict and unboxed as possible
unboxed-containers library: Self-optimizing unboxed sets using view patterns and data families
unboxed-ref library and test: Fast unboxed references for ST and IO monad
unboxed-references library and program: A library for reference cells backed by unboxed-vectors
unboxing-vector library, tests and benchmark: A newtype-friendly variant of unboxed vectors
unfix-binders library: Unfixing and recursion schemes for data types with binders
ungadtagger library: Abstract GADTs from typelevel tags
unicode-transforms library, program, tests and benchmark: Unicode normalization
uniform-pair library: Uniform pairs with class instances
union library and benchmark: Extensible type-safe unions
union-find library: Efficient union and equivalence testing of sets.
union-find-array library: union find data structure
union-map library: Heterogeneous map by open unions.
Unique library, test and benchmark: It provides the functionality like unix "uniq" utility
unique library: Fully concurrent unique identifiers
uniqueid library: Splittable Unique Identifier Supply
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-stats library: A very basic descriptive statistics.
unit library and test: Aliases for `()`.
universal-binary library: Parser for OS X Universal Binary format.
universe library: A class for finite and recursively enumerable types.
universe-base library and test: A class for finite and recursively enumerable types.
universe-dependent-sum library: Universe instances for types from dependent-sum
universe-instances-base library: Universe instances for types from the base package
universe-instances-extended library: Universe instances for types from selected extra packages
universe-instances-trans library: Universe instances for types from the transformers and mtl packages
universe-reverse-instances library: Instances of standard classes that are made possible by enumerations
universe-some library and test: Universe instances for Some from some
unix-time library and tests: Unix time parser/formatter and utilities
unjson library and test: Bidirectional JSON parsing and generation.
unlifted-list library: GHC Haskell lists of non-thunks (things of kind TYPE 'UnliftedRep)
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
unliftio-streams library: Generalization of io-streams to MonadUnliftIO
unordered-containers library, tests and benchmark: Efficient hashing-based container types
unordered-intmap library and test: A specialization of `HashMap Int v`
unpacked-maybe-numeric library and test: maybes of numeric values with fewer indirections
unpacked-maybe-text library: optional text that unpacks well
unsafely library and programs: Flexible access control for unsafe operations and instances
unwrapped-functors library: Unwrapping sums/products lifted to functors
url-bytes library, test and benchmark: Memory efficient url type and parser.
urlpath library: Painfully simple URL deployment.
urn library and test: Universal Resource Names
urn-random library: A package for updatable discrete distributions
userid library: The UserId type and useful instances for web development
users-persistent library and test: A persistent backend for the users package
utc library and test: A pragmatic time and date library.
utf8-conversions library and test: A string conversion library that assumes utf8
util-plus library and test: A collection of commonly used utils
utility-ht library and test: Various small helper functions for Lists, Maybes, Tuples, Functions
uuid library and test: For creating, comparing, parsing and printing Universally Unique Identifiers
uuid-aeson library: Aeson types for UUID instances.
uuid-bytes library and test: UUID parsing using byteverse packages
uuid-le library: Universally Unique Identifiers with little-endian-ish encoding tools
uuid-quasi library: Supplemental package for 'uuid' allowing quasiquotation.
uuid-types library and test: Type definitions for Universally Unique Identifiers
uvector library: Fast unboxed arrays with a flexible interface
uvector-algorithms library: Efficient algorithms for uvector unboxed arrays
uxadt library: Cross-language extensible representation for algebraic data type instances.
validated-literals library and test: Compile-time checking for partial smart-constructors
Validation library: A data-type like Either but with an accumulating Applicative
validation library and tests: A data-type like Either but with an accumulating Applicative
validation-selective library and tests: Lighweight pure data validation based on Applicative and Selective functors
validators library and tests: Composable validations for your Haskell data types
value-supply library: A library for generating values without having to thread state.
var library, test and benchmarks: Mutable variables and tuples
variation library: nominal value with possible variations
vault library: a persistent store for values of arbitrary types
vcd library: Reading and writing VCD files.
vcs-revision library: Facilities for accessing the version control revision of the current directory.
Vec library: Fixed-length lists and low-dimensional linear algebra.
vec library, test and benchmark: Vec: length-indexed (sized) list
Vec-Boolean library: Provides Boolean instances for the Vec package
vec-lens library: Vec: length-indexed (sized) list: lens support
vec-optics library: Vec: length-indexed (sized) list: optics support
VecN library: a simple peano-indexed vector type
vector library and tests: Efficient Arrays
vector-algorithms library, test and benchmark: Efficient algorithms for vector arrays
vector-binary library: Binary instances for vector types (deprecated)
vector-binary-instances library, test and benchmark: Instances of Data.Binary for vector
vector-buffer library: A buffer compatible with Data.Vector.*
vector-bytes-instances library and test: Serial (from the bytes package) for Vector (from the vector package)
vector-bytestring library, program and test: ByteStrings as type synonyms of Storable Vectors of Word8s
vector-circular library and tests: circular vectors
vector-clock library and test: Vector clocks for versioning message flows
vector-conduit library and test: Conduit utilities for vectors
vector-doublezip library: Some special functions to work with Vector (with zip).
vector-endian library: Storable vectors with cpu-independent representation.
vector-functorlazy library: vectors that perform the fmap operation in constant time
vector-heterogenous library: A type-safe library for vectors whose elements can be of any type, ...
vector-instances library: Orphan Instances for 'Data.Vector'
vector-instances-collections library: Instances of the Data.Collections classes for Data.Vector.*
vector-mmap library and test: Memory map immutable and mutable vectors
vector-random library: Generate vectors filled with high quality pseudorandom numbers
vector-read-instances library: (deprecated) Read instances for 'Data.Vector'
vector-rotcev library and test: Vectors with O(1) reverse
vector-sized library: Size tagged vectors
vector-split library and test: Combinator library for splitting vectors.
vector-static library: Statically checked sizes on Data.Vector
vector-text library: Text implementation based on unboxed char vector.
vector-th-unbox library and test: Deriver for Data.Vector.Unboxed using Template Haskell
verbosity library: Simple enum that encodes application verbosity.
versioning library and test: Type-safe data versioning.
versioning-servant library and test: Servant combinators for the versioning library.
versions library and test: Types and parsers for software version numbers.
vflow-types library and tests: types for ingesting vflow data with aeson
vinyl-generics library and test: Convert plain records to vinyl (and vice versa), generically.
vinyl-named-sugar library: Syntax sugar for vinyl records using overloaded labels.
vocabulary-kadma library: Smaoin vocabulary definitions of the base framework.
vp-tree library, test and benchmark: Vantage Point Trees
vpq library and test: Priority queue based on vector
warc library and program: A parser for the Web Archive (WARC) format
WAVE library and program: WAVE audio file IO library
wavesurfer library: Parse WaveSurfer files
weak-bag library: Mutable bag backed by weak pointers to each item
wide-word library and tests: Data types for large but fixed width signed and unsigned integers
wide-word-instances library: Instances for wide-word
winery library, program, test and benchmark: A compact, well-typed seralisation format for Haskell values
wire-streams library, test and benchmark: Fast binary io-streams adapter.
wiring library and test: Wiring, promotion and demotion of types.
witch library and test: Convert values from one type into another.
with library: Simple open product type
with-index library: A tiny library for composing indexed traversals
with-location library and test: Use ImplicitParams-based source locations in a backward compatible way
witherable library and test: filterable traversable
witherable-class library: Witherable = Traversable + Filterable
witness library: values that witness types
wizard library: the fantastical wizard monoid
wkt library and test: Parsec parsers and types for geographic data in well-known text (WKT) format.
wkt-geom library and tests: A parser of WKT, WKB and eWKB.
WMSigner library and test: WebMoney authentication module
woe library: Convenient typeclass for defining arbitrary-index enums.
woffex program: Web Open Font Format (WOFF) unpacker.
woot library and test: Real time group editor without operational transform.
word library and test: Words of arbitrary size
word-trie library and test: Implementation of a finite trie over words.
word12 library and test: Word12 library.
word24 library, test and benchmark: 24-bit word and int types for GHC
word8 library, test and benchmark: Word8 library
wordn library, test and benchmark: arbitrary bit size Words
world-peace library and tests: Open Union and Open Product Types
wrap library: Wrap a function's return value with another function
wraparound library: Convenient handling of points on a seamless 2-dimensional plane
wright library and test: Colour space transformations and metrics.
x509 library and test: X509 reader and writer
x509-store library and test: X.509 collection accessing and storing methods
x509-system library: Handle per-operating-system X.509 accessors and storage
x509-util program: Utility for X509 certificate and chain
x509-validation library and test: X.509 Certificate and CRL validation
xcb-types library: Parses XML files used by the XCB project
xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)
XML library and test: Extensible Markup Language
xml-conduit-selectors library and test: jQuery-style CSS selectors for xml-conduit
xml-isogen library and test: Generate XML-isomorphic types
xml-query library: A parser-agnostic declarative API for querying XML-documents
xml-query-xml-conduit library: A binding for the "xml-query" and "xml-conduit" libraries
xml-query-xml-types library and test: An interpreter of "xml-query" queries for the "xml-types" documents
xor library, test and benchmark: Efficient XOR masking
xournal-types library: Data types for programs for xournal file format
xxhash library, test and benchmark: A Haskell implementation of the xxHash algorithm
yahoo-finance-conduit library: Streaming aproach to the yahoo finance api
yall library: Lenses with a southern twang
yamemo library: Simple memoisation function
yaml library, programs and test: Support for parsing and rendering YAML documents.
yaml-light library: A light-weight wrapper with utility functions around HsSyck
yaml-light-lens library and test: Lens interface to yaml-light.
yaml-pretty-extras library and test: Extra functionality for pretty printing Yaml documents.
yaml-union library, programs and test: Read multiple yaml-files and override fields recursively
yarn-lock library and test: Represent and parse yarn.lock files
Z-Data library and test: Array, vector and text
Z-IO library, program, test and benchmark: Simple and high performance IO toolkit for Haskell
Z-MessagePack library and test: MessagePack
Z-YAML library and test: YAML tools
z85 library and test: Implementation of the z85 binary codec
zalgo library: Z-algorithm implemented on haskell's built-in cons-cell-based lists.
zcache library: Zobrist keys for game state tracking
zero library: Semigroups with absorption
ZipFold library: Zipping folds
zippo library: A simple lens-based, generic, heterogenous, type-checked zipper library
zlib-conduit library: Streaming compression/decompression via conduits. (deprecated)
zm library and tests: Language independent, reproducible, absolute types
zsdd library: Zero-Suppressed and Reduced Decision Diagrams

Data Conduit

tar-conduit tests and benchmark: Extract and create tar files using conduit for streaming

Data Flow

cached library and test: Cache values to disk.
yarr library: Yet another array library

Data Mining

algebraic-graphs-io library and test: I/O utilities and datasets for algebraic-graphs
closed-intervals library and test: Closed intervals of totally ordered types
datasets library, test and benchmark: Classical data sets for statistics and machine learning
depq library and test: Double-ended priority queues
dtw library and test: (Fast) Dynamic Time Warping
Emping program: derives heuristic rules from nominal data
gdelt library and test: GDELT V2 (Global Database of Events, Language, and Tone)
heidi library, program, test and benchmarks: Tidy data in Haskell
hinduce-associations-apriori library: Apriori algorithm for association rule mining
hinduce-classifier library: Interface and utilities for classifiers
hinduce-classifier-decisiontree library: Decision Tree Classifiers for hInduce
hinduce-examples library: Example data for hInduce
hlcm library and programs: Fast algorithm for mining closed frequent itemsets
HLearn-algebra library: Algebraic foundation for homomorphic learning
HLearn-approximation library
HLearn-classification library
HLearn-datastructures library
HLearn-distributions library: Distributions for use with the HLearn library
HMM library: A hidden markov model library
hmm library: A hidden markov model library
hps-kmeans library: A nice implementation of the k-Means algorithm.
hsgsom library: An implementation of the GSOM clustering algorithm.
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
kmeans library: K-means clustering algorithm
record-encode library and tests: Generic encoding of records
vp-tree library, test and benchmark: Vantage Point Trees

Data Network

network-messagepack-rpc library: MessagePack RPC

Data Science

analyze library and test: making data science easy and safe with data frames
Frames-beam library and test: A library for accessing Postgres tables as in-memory data structures.
heidi library, program, test and benchmarks: Tidy data in Haskell
record-encode library and tests: Generic encoding of records
rigel-viz library and test: A mid-level wrapper for vega-lite
sibe library and programs: Machine Learning algorithms

Data Structure

IntGraph library and test: Dynamically sized graph library
red-black-tree library and test: Red Black Trees implemented in Haskell
treap library and tests: Efficient implementation of the implicit treap data structure
tree-fun library: Library for functions pertaining to tree exploration and manipulation
trial library and tests: Trial Data Structure
trial-tomland library: Trial helper functions for tomland
trie-simple library, test and benchmark: Simple Map-based Trie

Data Structures

adjunctions library and test: Adjunctions and representable functors
adp-multi library, programs and test: ADP for multiple context-free languages
adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionSet library and test: Dynamic programming for Set data structures.
algebraic-graphs library and test: A library for algebraic graph construction and transformation
AlignmentAlgorithms library: Collection of alignment algorithms
appendmap library and test: Map with a Semigroup and Monoid instances delegating to Semigroup of the elements
array library: Mutable and immutable arrays
array-utils library: Primitive functions for updating many elements in mutable arrays at once
AvlTree library: Balanced binary trees using the AVL algorithm.
bag library: A simple stable bag.
bcp47 library and tests: Language tags as specified by BCP 47
BiobaseTypes library and test: Collection of types for bioinformatics
bit-array library and test: A bit array (aka bitset, bitmap, bit vector) API for numeric types
bitset library, test and benchmark: A space-efficient set data structure.
bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
bitwise-enum library, test and benchmark: Bitwise operations on bounded enumerations
bk-tree library: BK-tree implementation
bktrees library: A set data structure with approximate searching
bookkeeper library, program, tests and benchmark: Anonymous records and overloaded labels
bookkeeper-permissions library: Permissions for bookkeeper records
boolexpr library: Boolean expressions with various representations and search queries.
btree-concurrent library and test: A backend agnostic, concurrent BTree
build library and test: Build systems a la carte
bytestring-to-vector library and test: Convert between ByteString and Vector.Storable without copying
bytestring-trie library: An efficient finite map from (byte)strings to values.
circular library, test and benchmark: Circular fixed-sized mutable vectors
cmph library and test: low level interface to CMPH
collections library: Useful standard collections types and related functions.
collections-api library: API for collection data structures.
collections-base-instances library: Useful standard collections types and related functions.
comfort-array library and test: Arrays where the index type is a function of the shape type
composite-tuple library: Tuple functions for composite records.
composite-xstep library: ReaderT transformer pattern for higher kinded composite data.
container-classes library: Generic classes for interacting with different container types
containers library: Assorted concrete container types
CTRex library: Open records using closed type families.
ctrie library, test and benchmarks: Non-blocking concurrent map
data-clist library: Simple functional ring type.
data-forest library and test: A simple multi-way tree data structure.
data-lens-ixset library and test: A Lens for IxSet
data-r-tree library and tests: R-Tree is a spatial data structure similar to Quadtrees or B-Trees.
data-stringmap library and tests: An efficient implementation of maps from strings to arbitrary values
data-vector-growable library and test: Dynamic growable resizable mutable generic vector
dawg library: Directed acyclic word graphs
dawg-ord library and test: Directed acyclic word graphs
depq library and test: Double-ended priority queues
dequeue library and test: A typeclass and an implementation for double-ended queues.
diffarray library: DiffArray
disjoint-sets-st library: Imperative ST/IO based disjoint set data structure.
distributive library and test: Distributive functors -- Dual to Traversable
dph-base library: Data Parallel Haskell common config and debugging functions.
dph-examples programs: Data Parallel Haskell example programs.
dph-lifted-base library: Data Parallel Haskell common definitions used by other dph-lifted packages.
dph-lifted-copy library: Data Parallel Haskell lifted array combinators. (deprecated version)
dph-lifted-vseg library: Data Parallel Haskell lifted array combinators.
dph-par library: (deprecated)
dph-prim-interface library: Data Parallel Haskell segmented arrays. (abstract interface)
dph-prim-par library: Data Parallel Haskell segmented arrays. (production version)
dph-prim-seq library: Data Parallel Haskell segmented arrays. (sequential implementation)
dph-seq library: (deprecated)
DrIFT library and programs: Program to derive type class instances
DrIFT-cabalized programs: Program to derive type class instances
EdisonAPI library: A library of efficient, purely-functional data structures (API)
EdisonCore library: A library of efficient, purely-functional data structures (Core Implementations)
edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
EnumMap library: More general IntMap replacement.
enummapmap library, tests and benchmark: Map of maps using Enum types as keys
enummaps library: Enum wrappers for IntMap and IntSet
enummapset library and test: IntMap and IntSet with Enum keys/elements.
Etage-Graph library and program: Data-flow based graph algorithms
ethereum-client-haskell programs and test: A Haskell version of an Ethereum client
ethereum-merkle-patricia-db library and test: A modified Merkle Patricia DB
ethereum-rlp library and test: Ethereum Recursive Length Prefix Encoding
exposed-containers library and tests: A distribution of the 'containers' package, with all modules exposed.
extended-containers library and test: Heap and Vector container types
extended-containers-lens library: lens instances for extended-containers
FenwickTree library and test: Data structure for fast query and update of cumulative sums
fgl library, test and benchmark: Martin Erwig's Functional Graph Library
fgl-extras-decompositions library: Graph decomposition algorithms
fingertree library and test: Generic finger-tree structure, with example instances
fingertree-psqueue library: Implementation of priority search queues as finger trees.
fingertree-tf library: Generic finger-tree structure using type families.
flux-monoid library: A monoid for tracking changes
function-builder library and test: Create poly variadic functions for monoidal results
functor-friends library: Friendly helpers for your recursion schemes.
generic-tree library: Generic Tree data type
GiST library: A Haskell implementation of a Generalized Search Tree (GiST)
gmap library: Composable maps and generic tries.
graph-matchings library: An implementation of algorithms for matchings in graphs
graph-utils library: A simple wrapper & quasi quoter for fgl.
graph-wrapper library and test: A wrapper around the standard Data.Graph with a less awkward interface
graphite library, test and benchmark: Graphs and networks library
graphs library: A simple monadic graph library
grids library, test and benchmark
gtk-largeTreeStore library and test: Large TreeStore support for gtk2hs
haggle library and test: A graph library offering mutable, immutable, and inductive graphs
hamtmap library: A purely functional and persistent hash map
hashmap-throw library: Throw behaviour for hashmap lookup.
hashtables-plus library and benchmark: Extensions for a "hashtables" library
hCM library, program and test: Conceptual modelling support for Haskell
heap library and test: Heaps in Haskell
heaps library: Asymptotically optimal Brodal/Okasaki heaps.
hetero-map library: Pure heterogeneous maps.
hgal library: library for computation automorphism group and canonical labelling of a graph
hkd library and tests: "higher-kinded data"
HLearn-approximation library
HLearn-datastructures library
HMap library: Fast heterogeneous maps and unconstrained typeable-like functionality.
hobbits library: A library for canonically representing terms with binding
HoleyMonoid library: Monoids with holes.
hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
hw-eliasfano library, program, tests and benchmark: Elias-Fano
hw-excess library, tests and benchmark: Excess
hw-fingertree library and tests: Generic finger-tree structure, with example instances
hw-fingertree-strict library and tests: Generic strict finger-tree structure
hw-json-lens library, tests and benchmark: Lens for hw-json
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-xml library, program, tests and benchmark: XML parser based on succinct data structures.
I1M library and test: Code for the Haskell course taught at the University of Seville.
igraph library: Bindings to the igraph C library.
impure-containers library, test and benchmark: Mutable containers in Haskell.
indexed-containers library and test: Simple, no-frills indexed lists.
intern library: Efficient hash-consing for arbitrary data types
InternedData library, test and benchmark: Data interning (with compact regions where possible)
interval library and test: Intervals with adherences.
intset-imperative library, tests and benchmark: An imperative integer set written in Haskell.
iterable library: API for hierarchical multilevel collections.
ixset library and test: Efficient relational queries on Haskell sets.
ixset-typed library and test: Efficient relational queries on Haskell sets.
ixset-typed-binary-instance library: Binary instance for ixset-typed.
ixset-typed-conversions library: Conversions from ixset-typed to other containers.
ixset-typed-hashable-instance library: Hashable instance for ixset-typed.
justified-containers library and test: Keyed container types with type-checked proofs of key presence.
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
keys library: Keyed functors and containers
knead library and test: Repa-like array processing using LLVM JIT
knit library and test: Ties the knot on data structures that reference each other by unique keys.
labeled-graph library: Labeled graph structure
labeled-tree library: Labeled tree structure
lapack library, program and test: Numerical Linear Algebra using LAPACK
lca library: O(log n) persistent online lowest common ancestor search without preprocessing
libgraph library: Store and manipulate data in a graph.
linked-list-with-iterator library and test: A pure linked list which is mutable through iterators.
list-t library and test: ListT done right
list-tries library and test: Tries and Patricia tries: finite sets and maps for list keys
listlike-instances library: Extra instances of the ListLike class
loc library and tests: Types representing line and column positions and ranges in text files.
localization library: Library for localization (l10n)
magma library and test: magma is an algebraic structure.
map-exts library and programs: Extensions to Data.Map
map-syntax library and test: Syntax sugar for defining maps
massiv library and test: Massiv (Массив) is an Array Library.
massiv-io library and tests: Import/export of Image files into massiv Arrays
massiv-persist library and tests: Compatibility of 'massiv' with 'persist'
massiv-test library and tests: Library that contains generators, properties and tests for Massiv Array Library.
meldable-heap library: Asymptotically optimal, Coq-verified meldable heaps, AKA priority queues
merkle-patricia-db library and test: A modified Merkle Patricia DB
min-max-pqueue library, test and benchmark: Double-ended priority queues.
miso library and programs: A tasty Haskell front-end framework
miso-examples programs: A tasty Haskell front-end framework
monadic-arrays library: Boxed and unboxed arrays for monad transformers
mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
more-containers library and test: A few more collections
multi-containers library and test: A few multimap variants.
multimap library: A multimap.
multiset library and tests: The Data.MultiSet container type
naperian library: Efficient representable functors
nested-sequence library and test: List-like data structures with O(log(n)) random access
nested-sets library and test: Nested set model implementation
nibblestring library and test: Packed, strict nibble arrays with a list interface (ByteString for nibbles)
nonempty-containers library and test: Non-empty variants of containers data types, with full API
nonempty-zipper library and test: A non-empty comonadic list zipper
nonemptymap library: A NonEmptyMap Implementation
nthable library
pangraph library and test: A set of parsers for graph languages and conversions to graph libaries.
parameterized-utils library and test: Classes and data structures for working with data-kind indexed types
pedestrian-dag library: A pedestrian implementation of directed acyclic graphs
perfect-hash-generator library, programs and test: Perfect minimal hashing implementation in native Haskell
PerfectHash library: A perfect hashing library for mapping bytestrings to values.
perfecthash library, test and benchmark: A perfect hashing library for mapping bytestrings to values.
permutation library: A library for permutations and combinations.
pomaps library, tests and benchmark: Maps and sets of partial orders
pqueue library and test: Reliable, persistent, fast priority queues.
primitive-containers library, test and benchmark: containers backed by arrays
PSQueue library: Priority Search Queue
psqueues library, test and benchmark: Pure priority search queues
q4c12-twofinger library and tests: Efficient alternating finger trees
quickset library: Very fast and memory-compact query-only set and map structures
radix-tree library, test and benchmark: Radix tree data structive over short byte-strings
ralist library, test and benchmark: Random access list with a list compatible interface.
random-access-list library: Random-access lists in Haskell
random-tree library: Create random trees
randproc library: Data structures and support functions for working with random processes
rational-list library and test: finite or repeating lists
rbst library, tests and benchmark: Randomized Binary Search Trees
RBTree library: Pure haskell Red-Black-Tree implemetation
record library: Anonymous records
reflection-without-remorse library: Efficient free and operational monads.
relacion library: A relation data structure.
relation library and tests: A data structure representing Relations on Sets.
repa library: High performance, regular, shape polymorphic parallel arrays.
repa-algorithms library: Algorithms using the Repa array library.
repa-array library: Bulk array representations and operators.
repa-bytestring library: (deprecated)
repa-convert library: Packing and unpacking flat tables.
repa-devil library: Support for image reading and writing of Repa arrays using in-place FFI calls
repa-eval library: Low-level parallel operators on bulk random-accessble arrays.
repa-examples programs: Examples using the Repa array library.
repa-fftw library, test and benchmark: Perform fft with repa via FFTW
repa-flow library: Data-parallel data flows.
repa-io library: Read and write Repa arrays in various formats.
repa-plugin library: Data Flow Fusion GHC Plugin.
repa-scalar library: Scalar data types and conversions.
repa-series library: Series Expressionss API
repa-sndfile library, programs and test: Reading and writing sound files with repa arrays
repa-stream library: Stream functions not present in the vector library.
representable-functors library: Representable functors
representable-tries library: Tries from representations of polynomial functors
rosezipper library: Generic zipper implementation for Data.Tree
row-types library, test and benchmark: Open Records and Variants
rstream library: stream-fusion framework from vector
sdp library: Simple Data Processing
sdp-binary library: Binary instances for SDP
sdp-deepseq library: DeepSeq SDP extension.
sdp-hashable library: Hashable instances for SDP
sdp-io library: SDP IO extension
sdp-quickcheck library, tests and benchmarks: SDP QuickCheck support
sdp4bytestring library and tests: SDP wrapper for ByteString.
sdp4text library and tests: SDP wrapper for Text.
sdp4unordered library: SDP classes for unordered containers
sdp4vector library and tests: SDP wrapper for Vector
selections library: Combinators for operating with selections over an underlying functor
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semirings library: two monoids as one, in holy haskimony
sequence library: A type class for sequences and various sequence data structures.
signed-multiset library: Multisets with negative membership.
sirkel library: Sirkel, a Chord DHT
slist library and tests: Sized list
sparsebit library: Sparse bitmaps for pattern match coverage
splay library: Generic splay-based sequence representation
spool library: Convert between ByteString and Vector.Storable without copying
stable-heap library and benchmark: Purely functional stable heaps (fair priority queues)
Stack library: Stack data structure
statethread library: The ST monad and STRefs
static-hash library: Immutable hash
stm-containers library and test: Containers for STM
stm-hamt library, test and benchmark: STM-specialised Hash Array Mapped Trie
strict-containers library and tests: Strict containers.
strict-containers-lens library: Strict containers - Lens instances
strict-containers-serialise library: Strict containers - Serialise instances
subwordgraph library and test: Subword graph implementation
subzero library and test: Helps when going "seed values" -> alternatives and optional -> answers
suffix-array library, program, test and benchmark: Simple and moderately efficient suffix array implementation
SuffixStructures library, program and benchmark: Suffix array construction
suffixtree library: Efficient, lazy suffix tree implementation
swapper library: Transparently swapping data from in-memory structures to disk
symantic-base library: Basic symantics for writing Embedded Domain-Specific Languages (EDSL).
TernaryTrees library and program: Efficient pure ternary tree Sets and Maps
text-containers library and test: Memory-efficient string-indexed container types.
text-trie library and test: An efficient finite map from Text to values, based on bytestring-trie.
thrist library: Type-threaded list
tie-knot library: "Ties the knot" on a given set of structures that reference each other by keys.
total-maps library: Dense and sparse total maps.
translatable-intset library and program: Integer sets with a constant time translate operation.
treemap library and test: A tree of Data.Map.
treeseq library: Library for a multi-way tree (rose tree), using Seq (finger tree) for forests
TreeStructures library: A collection of heaps and search trees
tst library: BK-tree implementation
type-aligned library: Various type-aligned sequence data structures.
type-indexed-queues library, test and benchmark: Queues with verified and unverified versions.
type-level-bst library: type-level binary search trees in haskell
type-level-sets library: Type-level sets and finite maps (with value-level counterparts)
typerep-map library, test and benchmark: Efficient implementation of a dependent map with types as keys
unboxing-vector library, tests and benchmark: A newtype-friendly variant of unboxed vectors
unordered-graphs library: Graph library using unordered-containers
vector library and tests: Efficient Arrays
vector-clock library and test: Vector clocks for versioning message flows
vector-endian library: Storable vectors with cpu-independent representation.
vector-functorlazy library: vectors that perform the fmap operation in constant time
vector-heterogenous library: A type-safe library for vectors whose elements can be of any type, ...
vector-instances library: Orphan Instances for 'Data.Vector'
vector-mmap library and test: Memory map immutable and mutable vectors
vector-read-instances library: (deprecated) Read instances for 'Data.Vector'
vector-rotcev library and test: Vectors with O(1) reverse
vector-split library and test: Combinator library for splitting vectors.
vector-static library: Statically checked sizes on Data.Vector
void library: A Haskell 98 logically uninhabited data type
vp-tree library, test and benchmark: Vantage Point Trees
yarr library: Yet another array library

Data-structures

barbies library and tests: Classes for working with types that can change clothes.

Database

acid-state library, program, tests and benchmark: Add ACID guarantees to any serializable Haskell data structure.
acid-state-dist library, tests and benchmarks: A replication backend for acid-state
acid-state-tls library: Add TLS support for Data.Acid.Remote
algebra-dag library: Infrastructure for DAG-shaped relational algebra plans
algebra-sql library and programs: Relational Algebra and SQL Code Generation
anki-tools library and program: Tools for interacting with Anki database
anydbm library and program: Interface for DBM-like database systems
arena library, tests and benchmark: A journaled data store
basex-client library: A BaseX client for Haskell
bbdb library and test: Ability to read, write, and modify BBDB files
beam library: A type-safe SQL mapper for Haskell that doesn't use Template Haskell
beam-automigrate library, programs, tests and benchmark: DB migration library for beam, targeting Postgres.
beam-core library and test: Type-safe, feature-complete SQL query and manipulation interface for Haskell
beam-migrate library: SQL DDL support and migrations support library for Beam
beam-mysql library: Connection layer between beam and MySQL/MariaDB
beam-newtype-field library: A newtype for wrapping newtypes into beam schemas
beam-postgres library and test: Connection layer between beam and postgres
beam-sqlite library and test: Beam driver for SQLite
beam-th library and tests: Template Haskell utilities for beam
BerkeleyDB library: Berkeley DB binding
berkeleydb library: Pretty BerkeleyDB v4 binding.
BerkeleyDBXML library: Berkeley DB XML binding
bindings-monetdb-mapi library: Low-level bindings for the MonetDB API (mapi)
bindings-sophia library: Low-level bindings to sophia library
blacktip library, test and benchmark: Decentralized, k-ordered unique ID generator.
bloodhound library and test: Elasticsearch client library for Haskell
bolt library and test: Bolt driver for Neo4j
cassandra-cql library: Haskell client for Cassandra's CQL protocol
cassandra-thrift library: thrift bindings to the cassandra database
cassy library and test: A high level driver for the Cassandra datastore
cayley-client library and test: A Haskell client for the Cayley graph database
classy-influxdb-simple library: Super simple InfluxDB package in Classy-MTL style
clickhouse-haskell library and test: A Haskell library as database client for Clickhouse
consumers library and tests: Concurrent PostgreSQL data consumers
couch-hs library and program: A CouchDB view server for Haskell.
couch-simple library and test: A modern, lightweight, complete client for CouchDB
CouchDB library and test: CouchDB interface
couchdb-conduit library and test: Couch DB client library using http-conduit and aeson
couchdb-enumerator library and test: Couch DB client library using http-enumerator and aeson
cql library and test: Cassandra CQL binary protocol.
cql-io library and test: Cassandra CQL client.
cql-io-tinylog library: Tinylog integration for cql-io.
CurryDB library, programs, tests and benchmark: CurryDB: In-memory Key/Value Database
cypher library: Haskell bindings for the neo4j "cypher" query language
data-basic library and test: A database library with a focus on ease of use, type safety and useful error messages
database-id-class library: Class for types with a database id
database-id-groundhog library: HasId/Groundhog interop
database-migrate library: Database versioning and migration (experimental)
database-study library: Demonstrate how a database can be implemented the functional way
datalog library, program and tests: An implementation of datalog in Haskell
dawdle library and program: Generates DDL suggestions based on a CSV file
dbcleaner library and test: Clean database tables automatically around hspec tests
dbf library: Read and write XBase ".dbf" files
DBlimited program: A command-line SQL interface for flat files (tdf,csv,etc.)
dbm program: A *simple* database migration tool.
dbmigrations library, program and test: An implementation of relational database "migrations"
dbmigrations-mysql library, program and test: The dbmigrations tool built for MySQL databases
dbmigrations-postgresql program and test: The dbmigrations tool built for PostgreSQL databases
dbmigrations-sqlite program and test: The dbmigrations tool built for SQLite databases
dfinity-radix-tree library, program and test: A generic data integrity layer.
direct-rocksdb library and test: Bindings to RocksDB.
direct-sqlite library and test: Low-level binding to SQLite3. Includes UTF8 and BLOB support.
doi library and program: Automatic Bibtex and fulltext of scientific articles
drifter library and test: Simple schema management for arbitrary databases.
drifter-postgresql library and test: PostgreSQL support for the drifter schema migration tool
drifter-sqlite library and test: SQLite support for the drifter schema migraiton tool
DSH library and program: Database Supported Haskell
dsh-sql library and program: SQL backend for Database Supported Haskell (DSH)
dynamodb-simple library and test: Typesafe library for working with DynamoDB database
edis library: Statically typechecked client for Redis
ejdb2-binding library and test: Binding to EJDB2 C library, an embedded JSON noSQL database
elm-export-persistent library: elm-export persistent entities
encryptable library and test: Typed encryption with persistent support
erd program and test: An entity-relationship diagram generator from a plain text description.
esqueleto library and tests: Type-safe EDSL for SQL queries on persistent backends.
eternity library and test: Native event-sourcing database
eternity-timestamped library: Automatic timestamping for Eternity
eventful-core library and test: Core module for eventful
eventful-dynamodb library and test: Library for eventful DynamoDB event stores
eventful-memory library and test: In-memory implementations for eventful
eventful-postgresql library and test: Postgres implementations for eventful
eventful-sql-common library: Common library for SQL event stores
eventful-sqlite library and test: SQLite implementations for eventful
eventful-test-helpers library: Common module used for eventful tests
eventsourcing library and test: CQRS/ES library.
eventsourcing-postgresql library: PostgreSQL adaptor for eventsourcing.
eventstore library and test: EventStore TCP Client
exigo-schema library and test: database schema for exigo marking/assessment tools
ez-couch library: A high level static library for working with CouchDB
fcg program: TBA
FerryCore library: Ferry Core Components
firebase-database library, test and benchmark: Google Firebase Database SDK
Frames-beam library and test: A library for accessing Postgres tables as in-memory data structures.
franz library and programs: Append-only database
genders library and test: Bindings to libgenders.
geoip2 library: Pure haskell interface to MaxMind GeoIP database
gitson library, tests and benchmark: A document store library for Git + JSON.
gothic library: A Haskell Vault KVv2 secret engine client
grakn library and tests: A Haskell client for Grakn
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
graql library and test: Execute Graql queries on a Grakn graph
gremlin-haskell library, program and test: Graph database client for TinkerPop3 Gremlin Server
gridfs library: GridFS (MongoDB file storage) implementation
groundhog library: Type-safe datatype-database mapping library.
groundhog-converters library and test: Extended Converter Library for groundhog embedded types
groundhog-inspector library and program: Type-safe datatype-database mapping library.
groundhog-mysql library: MySQL backend for the groundhog library.
groundhog-postgresql library: PostgreSQL backend for the groundhog library.
groundhog-sqlite library: Sqlite3 backend for the groundhog library
groundhog-th library: Type-safe datatype-database mapping library.
hamsql library, program and test: Interpreter for SQL-structure definitions in YAML (YamSql)
HandlerSocketClient library: Haskell implementation of a HandlerSocket client (API).
hasbolt library and test: Haskell driver for Neo4j 3+ (BOLT protocol)
hasbolt-extras library, program and test: Extras for hasbolt library
hascas library and test: Cassandra driver for haskell
haskell-disque library and test: Client library for the Disque datastore
haskell-neo4j-client library and test: A Haskell neo4j client
haskell-postgis library and test: A haskell library for PostGIS geometry types.
haskell-tyrant library: Haskell implementation of the Tokyo Tyrant binary protocol
haskelldb library: A library of combinators for generating and executing SQL statements.
haskelldb-connect-hdbc library: Bracketed HDBC session for HaskellDB
haskelldb-connect-hdbc-catchio-mtl library: Bracketed HaskellDB HDBC session using MonadCatchIO-mtl
haskelldb-connect-hdbc-catchio-tf library: Bracketed HaskellDB HDBC session using MonadCatchIO-transformers
haskelldb-connect-hdbc-catchio-transformers library: Bracketed HaskellDB HDBC session using MonadCatchIO-transformers
haskelldb-connect-hdbc-lifted library: Bracketed HaskellDB HDBC session using lifted-base
haskelldb-dynamic library and program: HaskellDB support for the dynamically loaded drivers.
haskelldb-flat library and program: An experimental HaskellDB back-end in pure Haskell (no SQL)
haskelldb-hdbc library: HaskellDB support for HDBC.
haskelldb-hdbc-mysql library and program: HaskellDB support for the HDBC MySQL driver.
haskelldb-hdbc-odbc library and program: HaskellDB support for the HDBC ODBC driver.
haskelldb-hdbc-postgresql library and program: HaskellDB support for the HDBC PostgreSQL driver.
haskelldb-hdbc-sqlite3 library and program: HaskellDB support for the HDBC SQLite driver.
haskelldb-hsql library: HaskellDB support for HSQL.
haskelldb-hsql-mysql library and program: HaskellDB support for the HSQL MySQL driver.
haskelldb-hsql-odbc library and program: HaskellDB support for the HSQL ODBC driver.
haskelldb-hsql-oracle library and program: HaskellDB support for the HSQL Oracle driver.
haskelldb-hsql-postgresql library and program: HaskellDB support for the HSQL PostgreSQL driver.
haskelldb-hsql-sqlite library and program: HaskellDB support for the HSQL SQLite driver.
haskelldb-hsql-sqlite3 library and program: HaskellDB support for the HSQL SQLite3 driver.
haskelldb-th library: Template Haskell utilities for HaskellDB.
haskelldb-wx library: HaskellDB support for WXHaskell.
haskey library and tests: A transactional, ACID compliant, embeddable key-value store.
haskey-btree library and tests: B+-tree implementation in Haskell.
haskey-mtl library and test: A monad transformer supporting Haskey transactions.
HaskRel library: HaskRel, Haskell as a DBMS with support for the relational algebra
hasparql-client library: This package enables to write SPARQL queries to remote endpoints.
hasql library, tests and benchmark: An efficient PostgreSQL driver with a flexible mapping API
hasql-backend library: API for backends of "hasql"
hasql-class library and test: Encodable and Decodable classes for hasql
hasql-cursor-query library and test: A declarative abstraction over PostgreSQL Cursor
hasql-cursor-transaction library: An abstraction for simultaneous fetching from multiple PostgreSQL cursors
hasql-migration library and test: PostgreSQL Schema Migrations
hasql-notifications library, program and test: LISTEN/NOTIFY support for Hasql
hasql-optparse-applicative library: "optparse-applicative" parsers for "hasql"
hasql-pipes library: A pipe to stream a postgres database cursor in the hasql ecosystem
hasql-pool library and test: A pool of connections for Hasql
hasql-postgres library, tests and benchmark: A "PostgreSQL" backend for the "hasql" library
hasql-postgres-options library: An "optparse-applicative" parser for "hasql-postgres"
hasql-th library: Template Haskell utilities for Hasql
hasql-transaction library and test: Composable abstraction over retryable transactions for Hasql
hasqly-mysql library: composable SQL generation
HDBC library and program: Haskell Database Connectivity
hdbc-aeson library: Deserialize from HDBC rows to FromJSON instances
HDBC-mysql library: MySQL driver for HDBC
HDBC-odbc library and programs: ODBC driver for HDBC
HDBC-postgresql library and program: PostgreSQL driver for HDBC
HDBC-postgresql-hstore library: Manipulate data in PostgreSQL "hstore" columns.
hdbc-postgresql-hstore library: Manipulate data in PostgreSQL "hstore" columns.
HDBC-session library: Bracketed connection for HDBC
HDBC-sqlite3 library and program: Sqlite v3 driver for HDBC
hdbc-tuple library: Type save tuples for HDBC
hdbi library and tests: Haskell Database Independent interface
hdbi-conduit library and test: Conduit glue for HDBI
hdbi-postgresql library and tests: PostgreSQL driver for hdbi
hdbi-sqlite library and test: SQlite driver for HDBI
hedis library, tests and benchmark: Client library for the Redis datastore: supports full command set, pipelining.
hedis-config library: Easy trivial configuration for Redis
hedis-envy library
hedis-monadic library: A la MonadReader for Redis connection
hedis-pile library and test: Caching mandatory data with Redis
hedis-simple library: A simplified API for hedis
hedis-tags library and test: Tags for hedis
hesql program: Haskell's embedded SQL
HGraphStorage library, test and benchmark: Graph database stored on disk
higher-leveldb library and test: A rich monadic API for working with leveldb databases.
hlrdb library: High-level Redis Database
hlrdb-core library: High-level Redis Database Core API
hmemdb library: In-memory relational database
hocilib library and test: FFI binding to OCILIB
HongoDB library and test: A Simple Key Value Store
hpqtypes library and test: Haskell bindings to libpqtypes
hpqtypes-extras library, test and benchmark: Extra utilities for hpqtypes library
hRESP library: haskell implementation of RESP (REdis Serialization Protocol).
hs-cdb library: A library for reading CDB (Constant Database) files.
hs-rqlite library: A Haskell client for RQlite
hscassandra library: cassandra database interface
hSimpleDB library: Interface to Amazon's SimpleDB service.
hsparql library and test: A SPARQL query generator and DSL, and a client to query a SPARQL server.
hsql library: Database access from Haskell.
hsql-mysql library: MySQL driver for HSQL.
hsql-odbc library: A Haskell Interface to ODBC.
hsql-postgresql library: A Haskell Interface to PostgreSQL via the PQ library.
hsql-sqlite3 library: SQLite3 driver for HSQL.
hsSqlite3 library: Sqlite3 bindings
hssqlppp library and test: SQL parser and type checker
hssqlppp-th library and test: hssqlppp extras which need template-haskell
hw-kafka-client library, program and tests: Kafka bindings for Haskell
hw-kafka-conduit library, program and test: Conduit bindings for hw-kafka-client
hypher library and test: A Haskell neo4j client
hzk library and test: Haskell client library for Apache Zookeeper
influxdb library, programs and tests: InfluxDB client library for Haskell
io-storage library: A key-value store in the IO monad.
IPv6DB library, program and test: A RESTful microService for IPv6-related data
json-state library: Keep program state in JSON files.
json2-hdbc library: Support JSON for SQL Database.
JunkDB library
JunkDB-driver-gdbm library
JunkDB-driver-hashtables library
kawa library, program and test: Key-value store in single files.
keyvaluehash library: Pure Haskell key/value store implementation
KyotoCabinet library: Kyoto Cabinet DB bindings
kyotocabinet library: Mid level bindings to Kyoto Cabinet
LambdaDB library, program and test: On-memory Database using Lambda Function environment.
language-sqlite library: Full parser and generator for SQL as implemented by SQLite3
leveldb-haskell library, programs and test: Haskell bindings to LevelDB
leveldb-haskell-fork library, programs and test: Haskell bindings to LevelDB
libinfluxdb library: libinfluxdb
libpq library: libpq binding for Haskell
liszt library, programs and benchmark: Append only key-list database
lmdb library: Lightning MDB bindings
lmdb-simple library, tests and benchmark: Simple API for LMDB
mallard library and program: Database migration and testing as a library.
mbtiles library and test: Haskell MBTiles client.
mealstrom library and test: Manipulate FSMs and store them in PostgreSQL.
memcache library, test and benchmark: A memcached client library.
memcached-binary library and test: memcached client using binary protocol.
memdb library and test: Efficient in memory indexed database
memo-sqlite library: memoize functions using SQLite3 database
MetaHDBC library: Statically checked database access
migrant-core library and test: Semi-automatic database schema migrations
migrant-hdbc library and test: Semi-automatic database schema migrations
migrant-postgresql-simple library and test: Semi-automatic database schema migrations
migrant-sqlite-simple library and test: Semi-automatic database schema migrations
monad-persist library and test: An mtl-style typeclass and transformer for persistent.
monarch library, tests and benchmark: Monadic interface for TokyoTyrant.
monetdb-mapi library: Mid-level bindings for the MonetDB API (mapi)
mongoDB library, test and benchmark: Driver (client) for MongoDB, a free, scalable, fast, document DBMS
mongodb-queue library and test: message queue using MongoDB
morph library and program: A simple database migrator for PostgreSQL
moto library and test: General purpose migrations library
moto-postgresql library: PostgreSQL-based migrations registry for moto.
ms-tds library and test: TDS Protocol implemented in Haskell
mssql-simple library and test: SQL Server client library implemented in Haskell
muesli library: A simple document-oriented database
multipool library and test: ...
multipool-persistent library and test: Read and write from appropriate persistent sql instances in replicated environments.
multipool-persistent-postgresql library and test: Read and write appropriately from both master and replicated postgresql instances.
mysql library and test: A low-level MySQL client library.
mysql-effect library: An extensible mysql effect using extensible-effects and mysql-simple
mysql-haskell library and test: pure haskell MySQL driver
mysql-haskell-nem library: Adds a interface like mysql-simple to mysql-haskell.
mysql-haskell-openssl library: TLS support for mysql-haskell package using openssl
mysql-simple library and test: A mid-level MySQL client library.
mysql-simple-quasi library: Quasi-quoter for use with mysql-simple.
mysql-simple-typed library: Typed extension to mysql simple
narc library: Query SQL databases using Nested Relational Calculus embedded in Haskell.
Neks library and programs: Simple networked key/value store
net-spider library and tests: A graph database middleware to maintain a time-varying graph.
net-spider-cli library and tests: CLI option parsers for NetSpider objects
net-spider-pangraph library and tests: Conversion between net-spider and pangraph
net-spider-rpl library and tests: NetSpider data model and utility for RPL networks
net-spider-rpl-cli library, program and test: CLI executable of NetSpider.RPL.
odpic-raw library and test: Oracle Database Bindings
opaleye library and tests: An SQL-generating DSL targeting PostgreSQL
opaleye-classy library: Opaleye wrapped up in classy MTL attire.
opaleye-sqlite library and tests: An SQL-generating DSL targeting SQLite
opaleye-trans library and programs: A monad transformer for Opaleye
orchestrate library and test: An API client for http://orchestrate.io/.
OrchestrateDB library and tests: Unofficial Haskell Client Library for the Orchestrate.io API
Pathfinder library: Relational optimiser and code generator
PCLT-DB library: An addon to PCLT package: enchance PCLT catalog with PostgreSQL powers.
perdure library and program: Robust persistence for acyclic immutable data
peregrin library and test: Database migration support for use in other libraries.
persist2er program: Transforms persist's quasi-quoted syntax into ER format
persistable-record library and test: Binding between SQL database values and haskell records.
persistable-types-HDBC-pg library and test: HDBC and Relational-Record instances of PostgreSQL extended types
persistent library, test and benchmark: Type-safe, multi-backend data serialization.
persistent-audit library, program and test: Parses a Persist Model file and produces Audit Models
persistent-cereal library: Helper functions for writing Persistent instances
persistent-database-url library and test: Parse DATABASE_URL into configuration types for Persistent
persistent-documentation library and test: Documentation DSL for persistent entities
persistent-generic library: Derive Persistent classes generically
persistent-hssqlppp library: Declare Persistent entities using SQL SELECT query syntax
persistent-instances-iproute library: Persistent instances for types in iproute
persistent-iproute library: Persistent instances for types in iproute
persistent-migration library and tests: Manual migrations for the persistent library
persistent-mongoDB library and test: Backend for the persistent library using mongoDB.
persistent-mtl library and test: Monad transformer for the persistent API
persistent-mysql library and test: Backend for the persistent library using MySQL database server.
persistent-mysql-haskell library, program and test: A pure haskell backend for the persistent library using MySQL database server.
persistent-odbc library and program: Backend for the persistent library using ODBC
persistent-pagination library and test: Efficient and correct pagination for persistent or esqueleto queries.
persistent-parser library and test: Parse persistent model files
persistent-postgresql library, program and test: Backend for the persistent library using postgresql.
persistent-protobuf library: Template-Haskell helpers for integrating protobufs with persistent.
persistent-qq library and test: Provides a quasi-quoter for raw SQL for persistent
persistent-ratelimit library: A library for rate limiting activities with a persistent backend.
persistent-redis library and test: Backend for persistent library using Redis.
persistent-relational-record library and tests: relational-record on persisten backends.
persistent-spatial library and test: Database agnostic, spatially indexed type for geographic points.
persistent-sqlite library, program and test: Backend for the persistent library using sqlite3.
persistent-template library: Type-safe, non-relational, multi-backend persistence.
persistent-template-classy library and test: Generate classy lens field accessors for persistent models
persistent-test library: Tests for Persistent
persistent-zookeeper library and test: Backend for persistent library using Zookeeper.
pg library and test: Mid-level PostgreSQL client library
pg-extras library and test: PostgreSQL database performance insights.
pg-store library and test: Simple storage interface to PostgreSQL
pgsql-simple library: A mid-level PostgreSQL client library.
pipes-mongodb library and test: Stream results from MongoDB
pipes-postgresql-simple library: Convert various postgresql-simple calls to work with pipes
pipes-sqlite-simple library: Functions that smash Pipes and sqlite-simple together
plist-buddy library and test: Remote monad for editing plists
pool library: Thread-safe resource pools. (deprecated)
pool-conduit library: Resource pool allocations via ResourceT. (deprecated)
poseidon library and test: Simple extensible library to run SQL file against PostgreSQL database.
poseidon-postgis library and test: Extension of Poseidon library for Postgis (Spatial and Geographic objects for PostgreSQL)
positron library and test: Experiment
postgres-options library and test: An Options type representing options for postgres connections
postgres-tmp library: Create a temporary database that is deleted after performing some operation
postgres-websockets library, program and test: Middleware to map LISTEN/NOTIFY messages to Websockets
PostgreSQL library: Thin wrapper over the C postgresql library
postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
postgresql-config library: Types for easy adding postgresql configuration to your program
postgresql-cube library: Cube support for postgresql-simple
postgresql-error-codes library: PostgreSQL error codes
postgresql-libpq library and test: low-level binding to libpq
postgresql-libpq-notify library and test: Minimal dependency PostgreSQL notifications library
postgresql-lo-stream library: Utilities for streaming PostgreSQL LargeObjects
postgresql-orm library and program: An ORM (Object Relational Mapping) and migrations DSL for PostgreSQL.
postgresql-placeholder-converter library and test: Converter for question mark style and dollar sign style of PostgreSQL SQL.
postgresql-pure library, tests and benchmarks: pure Haskell PostgreSQL driver
postgresql-query library and tests: Sql interpolating quasiquote plus some kind of primitive ORM using it
postgresql-schema library and programs: PostgreSQL Schema Management
postgresql-simple library, tests and benchmark: Mid-Level PostgreSQL client library
postgresql-simple-bind library and tests: FFI-like bindings for PostgreSQL stored functions
postgresql-simple-interpolate library: Interpolated SQL queries via quasiquotation
postgresql-simple-migration library, program and test: PostgreSQL Schema Migrations
postgresql-simple-named library and tests: Implementation of named parameters for `postgresql-simple` library
postgresql-simple-opts library and test: An optparse-applicative and envy parser for postgres options
postgresql-simple-typed library: Typed extension for PostgreSQL simple
postgresql-simple-url library and test: Parse postgres:// url into ConnectInfo
postgresql-syntax library and tests: PostgreSQL AST parsing and rendering
postgresql-transactional library: a transactional monad on top of postgresql-simple
postgresql-tx library: A safe transaction monad for use with various PostgreSQL Haskell libraries.
postgresql-tx-monad-logger library: postgresql-tx interfacing for use with monad-logger.
postgresql-tx-query library: postgresql-tx interfacing for use with postgresql-query.
postgresql-tx-simple library: postgresql-tx interfacing for use with postgresql-simple.
postgresql-tx-squeal library: postgresql-tx interfacing for use with squeal-postgresql.
postgresql-tx-squeal-compat-simple library: Connection interop from postgresql-simple connections to postgresql-libpq connections.
postgresql-typed library, tests and benchmark: PostgreSQL interface with compile-time SQL type checking, optional HDBC backend
postgresql-typed-lifted library: postgresql-typed operations lifted to any instance of MonadBase or MonadBaseControl.
potoki-hasql library: Integration of "potoki" and "hasql".
preql library, test and benchmark: safe PostgreSQL queries using Quasiquoters
presto-hdbc library: An HDBC connector for Presto
pure-cdb library and test: Another pure-haskell CDB (Constant Database) implementation
qudb program: Quite Useless DB
queryparser library and benchmark: Analysis and parsing library for SQL queries.
queryparser-demo library: Demo package containing queryparser examples
queryparser-hive library: Parsing for Hive SQL queries
queryparser-presto library: Parsing for Presto SQL queries
queryparser-vertica library: Parsing for Vertica SQL queries
quokka library and test: Test helpers which help generate data for projects that use postgresql.
redis library: A driver for Redis key-value database
redis-hs library: A simple Redis library for Haskell
redis-io library, test and benchmark: Yet another redis client.
redis-simple library: Simple redis bindings for Haskell
rediscaching-haxl library: Combine redis caching and haxl.
redland library: Redland RDF library bindings
RefSerialize library: Write to and read from ByteStrings maintaining internal memory references
refurb library and test: Tools for maintaining a database
relational-postgresql8 library: PostgreSQL v8.x driver for haskell-relational-record
relational-query library and tests: Typeful, Modular, Relational, algebraic query engine
relational-query-HDBC library and test: HDBC instance of relational-query and typed query interface for HDBC
relational-query-postgresql-pure library and test: The connector of relational-record and postgresql-pure.
relational-record library: Meta package of Relational Record
relational-record-examples library and programs: Examples of Haskell Relationa Record
relational-schemas library: RDBMSs' schema templates for relational-query
resource-pool library: A high-performance striped resource pooling implementation
resource-pool-catchio library: Fork of resource-pool, with a MonadCatchIO constraint
resourcet-pool library: A small library to convert a Pool into an Acquire
rethinkdb library, program, test and benchmark: A driver for RethinkDB 2.2
rethinkdb-client-driver library, test and benchmark: Client driver for RethinkDB
rethinkdb-model library: Useful tools for modeling data with rethinkdb
rethinkdb-wereHamster library: RethinkDB driver for Haskell
rfc-psql library: The PostgreSQL extensions from the Robert Fischer Commons.
ribbit library: Type-level Relational DB combinators.
rivet-autoimporter program: Database migration library; automatic importer.
rivet-core library and test: Database migration library; core functionality.
rocksdb-haskell library and test: Haskell bindings to RocksDB
rocksdb-haskell-jprupp library and test: Haskell bindings for RocksDB
rocksdb-query library and test: RocksDB database querying library for Haskell
ron library and benchmark: RON
ron-rdt library: Replicated Data Types (RON-RDT)
ron-schema library: RON-Schema
ron-storage library: RON Storage
scidb-hquery library and program: Haskell query for SciDB via shim
seakale library: Pure SQL layer on top of other libraries
seakale-postgresql library: PostgreSQL backend for Seakale
seakale-tests library: Helpers to test code using Seakale
sednaDBXML library: Sedna C API XML Binding
selda library: Multi-backend, high-level EDSL for interacting with SQL databases.
selda-json library: JSON support for the Selda database library.
selda-postgresql library: PostgreSQL backend for the Selda database EDSL.
selda-sqlite library: SQLite backend for the Selda database EDSL.
servant-db-postgresql library, program and test: Derive a postgres client to database API specified by servant-db
servant-postgresql library: Useful functions and instances for using servant with a PostgreSQL context
shake-extras library: Extra utilities for shake build systems
shapefile library: Parser and related tools for ESRI shapefile format
simple-sql-parser library, programs and test: A parser for SQL.
simplest-sqlite library: Simplest SQLite3 binding
sirkel library: Sirkel, a Chord DHT
snaplet-riak library: A Snaplet for the Riak database
snaplet-sedna library: Snaplet for Sedna Bindings. Essentailly a rip of snaplet-hdbc.
sophia library, test and benchmark: Bindings to Sophia library
sparql-protocol library and test: An SPARQL 1.1 Protocol client library.
sphinx library: Haskell bindings to the Sphinx full-text searching daemon.
sphinx-cli program: Sphinx CLI and demo of Haskell Sphinx library
sql-simple library: common middle-level sql client.
sql-simple-mysql library: mysql backend for sql-simple
sql-simple-pool library: conection pool for sql-simple
sql-simple-postgresql library: postgresql backend for sql-simple
sql-simple-sqlite library: sqlite backend for sql-simple
sql-words library and test: SQL keywords data constructors into OverloadedString
sqlcipher library and test: Haskell binding to sqlcipher
sqlcli library: Bindings for SQL/CLI (ODBC) C API.
sqlcli-odbc library: ODBC specific definitions to be used by SQL CLI clients.
SQLDeps library: Calculate db-data dependencies of functions
sqlite library and test: Haskell binding to sqlite3
sqlite-simple library and test: Mid-Level SQLite client library
sqlite-simple-errors library and test: Wrapper around errors from sqlite-simple
sqlite-simple-typed library: Typed extension to sqlite simple
sqlvalue-list library: Class and instances for conversion to list of SqlValue.
squeal-postgresql library, program, tests and benchmark: Squeal PostgreSQL Library
streaming-postgresql-simple library: Stream postgresql-query results using the streaming library
streamly-lmdb library and test: Stream data to or from LMDB databases using the streamly library.
structured-mongoDB library: Structured MongoDB interface
superevent library and test: A simple opinionated event store implementation
Sysmon library: Sybase 15 sysmon reports processor
ta library: Transito Abierto: convenience library when using Takusen and Oracle.
TableAlgebra library: Ferry Table Algebra
Tables program: A client for Quill databases
tablestorage library: Azure Table Storage REST API Wrapper
Takusen programs: Database library with left-fold interface, for PostgreSQL, Oracle, SQLite, ODBC.
takusen-oracle library and programs: Database library with left-fold interface for Oracle.
TCache library: A Transactional cache with user-defined persistence
tcache-AWS library: tcache using Amazon Web Services as default persistence mechanism
tccli program: TokyoCabinet CLI interface
tds library and program: Pure Haskell TDS protocol implementation. Mainly for beam-mssql and beam-sybase
templatepg library: A PostgreSQL access library with compile-time SQL type inference
tempodb library: A small Haskell wrapper around the TempoDB api.
text-postgresql library and test: Parser and Printer of PostgreSQL extended types
tokyocabinet-haskell library and tests: Haskell binding of Tokyo Cabinet
tokyotyrant-haskell library: FFI bindings to libtokyotyrant
tonatona-google-server-api library and tests: tonatona plugin for google-server-api
tonatona-persistent-postgresql library and tests: tonatona plugin for accessing PostgreSQL database.
tonatona-persistent-sqlite library and tests: tonatona plugin for accessing Sqlite database.
traction library and test: Tools for postgresql-simple.
traildb library, program and benchmark: TrailDB bindings for Haskell
transfer-db library, program and test: ODBC database transfer
trek-app library, program and test: A PostgreSQL Database Migrator
trek-db library and test: A PostgreSQL Database Migrator
tripLL library: A very simple triple store
tx library: Persistent transactions on top of STM.
txt-sushi library and programs: The SQL link in your *NIX chain
typedquery library: Parser for SQL augmented with types
typson-beam library and test: Typson Beam Integration
typson-core library: Type-safe PostgreSQL JSON Querying
typson-esqueleto library and test: Typson Esqueleto Integration
typson-selda library and test: Typson Selda Integration
ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
vcache library: semi-transparent persistence for Haskell using LMDB, STM
vcache-trie library: patricia tries modeled above VCache
wai-middleware-cache-redis library: Redis backend for wai-middleware-cache
wheb-mongo library: MongoDB plugin for Wheb
yeshql library: YesQL-style SQL database abstraction (legacy compatibility wrapper)
yeshql-core library and test: YesQL-style SQL database abstraction (core)
yeshql-hdbc library and test: YesQL-style SQL database abstraction (HDBC backend)
yeshql-postgresql-simple library and test: YesQL-style SQL database abstraction (postgresql-simple backend)
yesod-persistent library and test: Some helpers for using Persistent from Yesod.
yesod-session-redis library: Redis-Powered Sessions for Haskell
yxdb-utils library, programs and test: Utilities for reading and writing Alteryx .yxdb files
zoovisitor library and test: A haskell binding to Apache Zookeeper C library(mt) using Haskell Z project.

Database Design

ampersand program and test: Toolsuite for automated design of business processes.

Database Testing Web

pg-harness library and program: REST service and library for creating/consuming temporary PostgreSQL databases
pg-harness-client library: Client library for pg-harness-server
pg-harness-server program: REST service for creating temporary PostgreSQL databases

Databases

juandelacosa program: Manage users in MariaDB >= 10.1.1
mywatch program: Web application to view and kill MySQL queries
sproxy2 program: Secure HTTP proxy for authenticating users via OAuth2

Datamining

HasGP library: A Haskell library for inference using Gaussian processes
hslibsvm library: A FFI binding to libsvm.
HSvm library: Haskell Bindings for libsvm

Date

date-conversions library and test: Date conversions
discordian-calendar library: library for handling Discordian calendar dates

Debian

cabal-debian library, program and test: Create a Debianization for a Cabal package
debian library, programs and test: Modules for working with the Debian package system
debian-build library and program: Debian package build sequence tools
dpkg library and test: libdpkg bindings
mbug library and program: download bugs mailboxes

Debug

ap-reflect library: Partial evaluation reflection a la simple-reflect.
asn1dump program: Dump ASN1 structure
box-tuples library: A hack to use GHC.Prim primitives in GHCi
bytedump library and program: Flexible byte dump helpers for human readers.
DataTreeView library: A GTK widget for displaying arbitrary Data.Data.Data instances
debug-diff library: Display a colorized diff between two Haskell values
debug-dump library: File-based debug output
debug-time library and test: Debug.Trace equivalent for timing computations
debug-trace-var library: You do not have to write variable names twice in Debug.Trace
DebugTraceHelpers library: Convenience functions and instances for Debug.Trace
ghc-datasize library: Determine the size of data structures in GHC's memory
ghc-dup library: Explicitly prevent sharing
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-heap-view library and test: Extract the heap representation of Haskell values and thunks
ghc-vis library: Live visualization of data structures in GHCi
ghci-history-parser library and tests: parse output of ghci ":history" command
GHood library: A graphical viewer for Hood
guarded-allocation library: Memory allocation with added stress tests and integrity checks
haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
heapsize library and benchmark: Determine the size of runtime data structures
Hoed library and tests: Lightweight algorithmic debugging.
hood library and test: Debugging by observing in place
hood-off library: Dummy package to disable Hood without having to remove all the calls to observe
hood2 library: Debugging by observing in place
hpc-strobe library: Hpc-generated strobes for a running Haskell program
htrace library: Hierarchical tracing for debugging of lazy evaluation
jdi library and program: Implementation of Java Debug Interface
KiCS-debugger library and program: debug features for kics
KiCS-prophecy library and program: a transformation used by the kics debugger
linux-perf library and programs: Read files generated by perf on Linux
nonfree library: Free structures sans laws
print-debugger library: Debug print formatting library.
remote-debugger program: Interface to ghci debugger
repr-tree-syb library: Tree representation and pretty-printing of data structures based on SYB
show-please library: A wrapper type V with improved Show instances
simple-reflect library: Simple reflection of expressions containing variables
todo library: A todo bottom.
trace-call library: functions for logging the arguments and results of function calls
trace-function-call library: Easy lightweight tracing of function arguments and results for ad hoc debugging
traced library: Simple evaluation trace
tracer library and test: Tracing utilities for Functor/Applicative/Monad types
vacuum library: Graph representation of the GHC heap
vacuum-graphviz library: A library for transforming vacuum graphs into GraphViz output

Debugging

debug library, program and test: Simple trace-based debugger
debug-pp program: A preprocessor for the debug package
NoHoed library: Placeholder package to preserve debug ability via conditional builds
recover-rtti library and test: Recover run-time type information from the GHC heap

Decompiler

mrifk program: Decompiles Glulx files

Deep Learning

menoh library, programs and test: Haskell binding for Menoh DNN inference library
typedflow library: Typed frontend to TensorFlow and higher-order deep learning

Default

aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
hkd-default library and test: Apply default value for optional field of HKD

Delay

schedule library and tests: Pure deterministic scheduled computations

Demo

bowntz program: audio-visual pseudo-physical simulation of colliding circles
gearbox program: zooming rotating fractal gears graphics demo
lame-tester library and test: A strange and unnecessary selective test-running library
pathfindingcore library and test: A toy pathfinding library
Pup-Events-Demo programs: A networked event handling framework for hooking into other programs.
snowglobe program: randomized fractal snowflakes demo
wedged program: Wedged postcard generator.

Dependency Injection

hs-di library, program and test: Dependency Injection library for Haskell

Dependent Types

Agda programs: A dependently typed functional programming language and proof assistant
Agda-executable program: Command-line program for type-checking and compiling Agda programs
agda-server program: Http server for Agda (prototype)
agda-snippets library and program: Render just the Agda snippets of a literate Agda file to HTML
agda-snippets-hakyll library: Literate Agda support using agda-snippets, for Hakyll pages.
agda-unused library, program and test: Check for unused code in an Agda project.
agda2lagda program: Translate .agda files into .lagda.tex files.
bin library: Bin: binary natural numbers.
compare-type library: compare types of any kinds in haskell
cubical program: Implementation of Univalence in Cubical Sets
dec library: Decidable propositions.
decidable library: Combinators for manipulating dependently-typed predicates.
dependent-map library: Dependent finite maps (partial dependent products)
dependent-sum library: Dependent sum type
eliminators library and test: Dependently typed elimination functions using singletons
fin library and test: Nat and Fin: peano naturals and finite numbers
helf program: Typechecking terms of the Edinburgh Logical Framework (LF).
hoq program: A language based on homotopy type theory with an interval type
idris library, programs and test: Functional Programming Language with Dependent Types
instance-map library and test: Template haskell utilities for helping with deserialization etc. of existential types
ivor library: Theorem proving library based on dependent type theory
lens-typelevel library: Type-level lenses using singletons
list-witnesses library: Witnesses for working with type-level lists
MiniAgda program: A toy dependently typed programming language with type-based termination.
nanoAgda program: A toy dependently-typed language
open-typerep library, test and benchmark: Open type representations and dynamic types
PandocAgda library and program: Pandoc support for literate Agda
parameterized-utils library and test: Classes and data structures for working with data-kind indexed types
pisigma library and program: A dependently typed core language
prim-uniq library: Opaque unique identifiers in primitive state monads
ral library and benchmark: Random access lists
ral-lens library: Length-indexed random access lists: lens utilities.
ral-optics library: Length-indexed random access lists: optics utilities.
reflection library and test: Reifies arbitrary terms into types that can be reflected back into terms
show-type library: convert types into string values in haskell
singleton-dict library: Typelevel balanced search trees via a singletonized Data.Map
singleton-nats library: Unary natural numbers relying on the singletons infrastructure.
singletons library and test: Basic singleton types and definitions
singletons-base library and test: A promoted and singled version of the base library
singletons-th library: A framework for generating singleton types
Sit library, program and test: Prototypical type checker for Type Theory with Sized Natural Numbers
some library and test: Existential type: Some
symbols library: Symbol manipulation
tensor-safe library and program: Create valid deep neural network architectures
type-equality library: Data.Type.Equality compat package
type-fun library and test: Collection of widely reimplemented type families
type-level-bst library: type-level binary search trees in haskell
typeparams library: ...
uAgda program: A simplistic dependently-typed language with parametricity.
vec library, test and benchmark: Vec: length-indexed (sized) list
vec-lens library: Vec: length-indexed (sized) list: lens support
vec-optics library: Vec: length-indexed (sized) list: optics support

Derive-monoid

derive-monoid library, program and test: derive Semigroup/Monoid/IsList

Desktop

arbtt programs and test: Automatic Rule-Based Time Tracker
bustle programs and tests: Draw sequence diagrams of D-Bus traffic
credential-store library, program and test: Library to access secure credential storage providers
d-bus library, programs and test: Permissively licensed D-Bus client library
DBus library: D-Bus bindings
dbus library, test and benchmark: A client library for the D-Bus IPC system.
dbus-client library: Monadic and object-oriented interfaces to DBus
dbus-core library: Low-level D-Bus protocol implementation
fdo-notify library: Desktop Notifications client
fdo-trash library and program: Utilities related to freedesktop Trash standard.
git-checklist program: Maintain per-branch checklists in Git
gnome-keyring library: Bindings for libgnome-keyring
libnotify library: Bindings to libnotify library
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard
status-notifier-item library and programs: A wrapper over the StatusNotifierItem/libappindicator dbus specification
todos library and program: Easy-to-use TODOs manager.
tracker library: Client library for Tracker metadata database, indexer and search tool
wacom-daemon library and programs: Manage Wacom tablet settings profiles, including Intuos Pro ring modes
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Desktop Environment

manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-core library: The core of Manatee.
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard

Development

accuerr library: Data type like Either but with accumulating error type
addLicenseInfo program: Adds license info to the top of a file.
ag-pictgen program: Attribute Grammar picture generation
agda-language-server library, program and test: LSP server for Agda
agda2lagda program: Translate .agda files into .lagda.tex files.
air library: air
air-extra library: air-extra
air-spec library: air spec helper
air-th library: air
alex program and test: Alex is a tool for generating lexical analysers in Haskell
alex-meta library: Quasi-quoter for Alex lexers
alex-tools library: A set of functions for a common use case of Alex.
AlgorithmW program: Example implementation of Algorithm W for Hindley-Milner type inference.
anansi library and program: Simple literate programming preprocessor
anansi-hscolour library: Colorized looms for Anansi
anansi-pandoc library: Looms which use Pandoc to parse and produce a variety of formats.
anatomy library and program: Anatomy: Atomo documentation system
AndroidViewHierarchyImporter program: Android view hierarchy importer
apply-refact library, program and test: Perform refactorings specified by the refact library.
argon program and tests: Measure your code's complexity
arrowp program: preprocessor translating arrow notation into Haskell 98
arrowp-qq library, program and test: A preprocessor and quasiquoter for translating arrow notation
assembler library and program: Haskell Assembler
ats-format program: A source-code formatter for ATS
ats-pkg library and program: A build tool for ATS
ats-setup library: ATS scripts for Cabal builds
Aurochs program: Yet another parser generator for C/C++
autopack library: Custom Setup to automate package modules discovery
avr-shake library: AVR Crosspack actions for shake build systems.
aws-lambda-runtime library and program: Haskell on AWS Lambda Runtime API
azurify library and program: A simple library for accessing Azure blob storage
b9 library, program and test: A tool and library for building virtual machine images.
backstop library, program and test: Backstop a target directory by source directories
bake library and program: Continuous integration system
base-compat-migrate library and program: Helps migrating projects to base-compat(-batteries).
base-feature-macros library: Semantic CPP feature macros for base
base-noprelude library: "base" package sans "Prelude" module
basic-lens library: Basic lens type and functions
bf-cata library
bhoogle program: Simple terminal GUI for local hoogle.
BigPixel program: Image editor for pixel art
bindings-bfd library: Bindings for libbfd, a library of the GNU `binutils'
BirdPP program: A preprocessor for Bird-style Literate Haskell comments with Haddock markup.
bisect-binary program: Determine relevant parts of binary data
bliplib library: Support code for Blip.
BNFC-meta library: Deriving Parsers and Quasi-Quoters from BNF Grammars
borel library and test: Metering System for OpenStack metrics provided by Vaultaire.
botpp library and program: Build tool for Lambdabot
bson-lens library: BSON lenses
buffet library, program and test: Assembles many Dockerfiles in one.
bug library: Better alternatives to the "error" function
buildbox library: Rehackable components for writing buildbots and test harnesses.
buildbox-tools program: Tools for working with buildbox benchmark result files.
buildwrapper library, program and test: A library and an executable that provide an easy API for a Haskell IDE
bumper program: Automatically bump package versions, also transitively.
c-storable library: CStorable class
c2hs programs and tests: C->Haskell FFI tool that gives some cross-language type safety
c2hs-extra library: Convenient marshallers for complicate C types.
c2hsc library, program and test: Convert C API header files to .hsc and .hsc.helper.c files
cabal library: placeholder for Cabal package, you want the upper case Cabal
cabal-appimage library: Cabal support for creating AppImage applications
cabal-bounds library, program and test: A command line program for managing the dependency versions in a cabal file.
cabal-bundle-clib library: Bundling C/C++ projects in Cabal package made easy
cabal-cache library, program and test: CI Assistant for Haskell projects
cabal-cargs library, program and test: A command line program for extracting compiler arguments from a cabal file.
cabal-constraints program: Repeatable builds for cabalized Haskell projects.
cabal-dev programs: Manage sandboxed Haskell build environments
cabal-edit program: Cabal utility
cabal-file-th library and test: Template Haskell expressions for reading fields from a project's cabal file.
cabal-fmt library, program and test: Format .cabal files
cabal-ghc-dynflags library: Conveniently configure GHC's dynamic flags for use with Cabal projects
cabal-ghci library and program: Set up ghci with options taken from a .cabal file
cabal-graphdeps program: Generate graphs of install-time Cabal dependencies
cabal-info library and program: Read information from cabal files
cabal-install-parsers library, tests and benchmark: Utilities to work with cabal-install files
cabal-lenses library: Lenses and traversals for the Cabal library.
cabal-meta library, program and test: build multiple packages at once
cabal-mon program: A monitor for cabal builds
cabal-plan library and program: Library and utility for processing cabal's plan.json file
cabal-scripts library: Shell scripts for support of Cabal maintenance
cabal-sign program: Sign and verify Cabal packages.
cabal2ghci program: A tool to generate .ghci file from .cabal
cabalQuery library and program: A simple tool to query cabal files.
cached-io library and program: A simple library to cache a single IO action with timeout
cairo-appbase program: A template for building new GUI applications using GTK and Cairo.
cake library and program: A build-system library and driver
cake3 library and programs: Third cake the Makefile EDSL
canteven-listen-http library: data types to describe HTTP services
canteven-log library: A canteven way of setting up logging for your program.
casa-client library: Client for Casa
casa-types library: Types for Casa
caseof library: Combinators for casing on constructors
castle program: A tool to manage shared cabal-install sandboxes.
catamorphism library and test: Exposes a Template Haskell function for generating catamorphisms.
CCA library and program: preprocessor and library for Causal Commutative Arrows (CCA)
cdeps library, program, test and benchmark: Extract dependencies from C code.
ceilometer-common library and test: Common Haskell types and encoding for OpenStack Ceilometer
cerberus library, program and test: Protect and control API access with cerberus
cgen library and programs: generates Haskell bindings and C wrappers for C++ libraries
change-monger library and program: Parse VCS changelogs into ChangeLogs
changelogged library, program and test: Changelog manager for Git projects.
checkmate library, program and tests: Generate checklists relevant to a given patch
cherry-core-alpha library and test: The core library for Cherry Haskell.
chr-data library: Datatypes required for chr library
chr-lang library and program: AST + surface language around chr
chr-parse library: Parsing for chr library
chr-pretty library: Pretty printing for chr library
chronos library, tests and benchmark: A high-performance time library
chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
chs-deps library, test and benchmark: c2hs dependency analyzer
cli-setup library: Helper setup scripts for packaging command-line tools.
clone-all program: Clone all github repositories from a given user
Coadjute library: A generic build tool
codex library and program: A ctags file generator for cabal project dependencies.
colorize-haskell library and program: Highligt Haskell source
Commando library and program: Watch some files; Rerun a command
compiler-warnings library and test: Parser for common compiler warning formats
Contract library: Practical typed lazy contracts.
cookbook library: Tiered general-purpose libraries with domain-specific applications.
coordinate library and test: A representation of latitude and longitude
court programs: Simple and flexible CI system
cpphs library and program: A liberalised re-implementation of cpp, the C pre-processor.
criterion library, program and tests: Robust, reliable performance measurement and analysis
criterion-cmp program: A simple tool for comparing in Criterion benchmark results
criterion-compare program: A simple tool for visualising differences in Criterion benchmark results
criterion-measurement library: Criterion measurement functionality and associated types
criterion-to-html program: Convert criterion output to HTML reports
crunghc program: A runghc replacement with transparent caching
csv-nptools programs: A collection of CSV tools
darcs library, program and test: a distributed, interactive, smart revision control system
darcs-beta programs: a distributed, interactive, smart revision control system
darcs-cabalized program: David's Advanced Version Control System
darcs-fastconvert program: Import/export git fast-import streams to/from darcs.
darcs-scripts library: Shell scripts for support of darcs workflow
darcs2dot program: Outputs dependencies of darcs patches in dot format.
darcsden programs: Darcs repository UI and hosting/collaboration app (hub.darcs.net branch).
data-structure-inferrer program: Program that infers the fastest data structure available for your program
data-util library: utilities for handle data
DataTreeView library: A GTK widget for displaying arbitrary Data.Data.Data instances
dbus-th-introspection library and program: Generate bindings for DBus calls by using DBus introspection and dbus-th
dead-code-detection program and test: detect dead code in haskell projects
debug library, program and test: Simple trace-based debugger
debug-tracy library and program: More useful trace functions for investigating bugs
delimiter-separated library: Library for dealing with tab and/or comma (or other) separated files
dependency library, test and benchmark: Dependency resolution for package management
derive library and program: A program and library to derive instances for data types
derive-gadt library and programs: Instance deriving for (a subset of) GADTs.
derive-lifted-instances library: Derive class instances though various kinds of lifting
derive-topdown library: Help Haskellers derive class instances for composited data types.
dhall-check program: Check all dhall files in a project
dib library and program: A simple, forward build system.
dictionary-sharing library: Sharing/memoization of class members
difftodo library, programs and test: Generate todo lists from source code
disassembler library: Disassembler for X86 & AMD64 machine code
dockercook library, program and test: A build tool for multiple docker image layers
docvim library, program and tests: Documentation generator for Vim plug-ins
DPM library and programs: Darcs Patch Manager
dump library and test: Dumps the names and values of expressions to ease debugging.
dump-core library: A plug-in for rendering GHC core
dwarfadt library and programs: High-level wrapper around the dwarf library
dynamic library: A dynamic type for Haskell
dyre library and test: Dynamic reconfiguration in Haskell
early library, program and test: Early return syntax in do-notation (GHC plugin)
edentv program: A Tool to Visualize Parallel Functional Program Executions
elm-init program: Set up basic structure for an elm project
envstatus library, program and test: Display efficiently the state of the local environment
erd program and test: An entity-relationship diagram generator from a plain text description.
error-analyze library and test: Parse ghc and cabal error messages and give their causes for easier resolution
error-location library: error functions that show file location information
error-message library: Composable error messages.
eventlog2html library and program: Visualise an eventlog
extra library and test: Extra functions I use.
extract-dependencies library and program: Given a hackage package outputs the list of its dependencies.
extractelf program: Extract an ELF's metadata and sections into files
fail library: Forward-compatible MonadFail class
fast-tags library, program and test: Fast incremental vi and emacs tags.
fathead-util library: Utilities for working with DuckDuckHack's FatHead Instant Answers
fay library and programs: A compiler for Fay, a Haskell subset that compiles to JavaScript.
fay-base library: The base package for Fay.
file-location library and test: common functions that show file location information
file-modules library and program: Takes a Haskell source-code file and outputs its modules.
filepath-io-access library: IO Access for filepath
filepattern library and test: File path glob-like matching
firstify library and program: Defunctionalisation for Yhc Core
flamingra library and program: FlameGraphs of profiling
flexible-unlit library and program: A configurable reimplementation of unlit
flo library and program: Generate flow charts from your code base.
floskell library, program, test and benchmark: A flexible Haskell source code pretty printer
foreign-store library: Store a stable pointer in a foreign context to be retrieved later.
formatn library and test: Number text formatting.
fourmolu library, program and test: A formatter for Haskell source code
fpco-api library and program: Simple interface to the FP Complete IDE API.
fresco-binding library: Fresco binding for Haskell
friendly program: Attempt to pretty-print any input
fugue library: A recapitulated prelude with minimal dependencies and profligate exports.
fused-effects-readline library and test: A readline-like effect and carrier for fused-effects
fusion-plugin library: GHC plugin to make stream fusion more predictable.
fusion-plugin-types library: Types for the fusion-plugin package.
gauge tests and benchmark: small framework for performance measurement and analysis
generic-env library: Generic Environment Generator
geodetic library and test: Geodetic calculations
ghc library: The GHC API
ghc-api-compat library: GHC-API compatibility helpers
ghc-check library: detect mismatches between compile-time and run-time versions of the ghc api
ghc-clippy-plugin library: Override GHC error messages to the user's liking
ghc-core program: Display GHC's core and assembly output in a pager
ghc-core-html program: Core to HTML display
ghc-datasize library: Determine the size of data structures in GHC's memory
ghc-dump-core library: An AST and compiler plugin for dumping GHC's Core representation.
ghc-dump-tree library and program: Dump GHC's parsed, renamed, and type checked ASTs
ghc-dump-util library and program: Handy tools for working with ghc-dump dumps
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-analyze program: Analyze and visualize event logs
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-exactprint programs and test: ExactPrint for GHC
ghc-gc-tune program: Graph performance of Haskell programs with different GC flags
ghc-generic-instances library: Derived instances of GHC.Generic of the GHC AST
ghc-imported-from library, programs and test: Find the Haddock documentation for a symbol.
ghc-lib library: The GHC API, decoupled from GHC versions
ghc-lib-parser library: The GHC API, decoupled from GHC versions
ghc-lib-parser-ex library and test: Algorithms on GHC parse trees
ghc-make program: Accelerated version of ghc --make
ghc-man-completion program: Generate a bash completion from the GHC manpage
ghc-mod library, programs, tests and benchmark: Happy Haskell Hacking
ghc-mtl library: An mtl compatible version of the Ghc-Api monads and monad-transformers.
ghc-parmake library, program and test: A parallel wrapper for 'ghc --make'.
ghc-paths library: Knowledge of GHC's installation directories
ghc-pkg-autofix program: Simple utility to fix BROKEN package dependencies for cabal-install.
ghc-pkg-lib library: Provide library support for ghc-pkg information
ghc-prof library, program and test: Library for parsing GHC time and allocation profiling reports
ghc-simple library: Simplified interface to the GHC API.
ghc-source-gen library and tests: Constructs Haskell syntax trees for the GHC API.
ghc-syb library: Data and Typeable instances for the GHC API.
ghc-syb-utils library: Scrap Your Boilerplate utilities for the GHC API.
ghc-tags-core library, test and benchmark: a library to work with tags created from Haskell parsed tree
ghc-tags-plugin library and program: A compiler plugin which generates tags file from GHC parsed syntax tree.
ghc-time-alloc-prof library, program and test: Library for parsing GHC time and allocation profiling reports
ghc-trace-events library and benchmarks: Faster traceEvent and traceMarker, and binary object logging for eventlog
ghc-usage library and program: Print minimal export lists
ghc-vis library: Live visualization of data structures in GHCi
ghci-dap library and program: ghci-dap is a GHCi having DAP interface.
ghci-history-parser library and tests: parse output of ghci ":history" command
ghci-ng program: Next generation GHCi
ghci-pretty library: colored pretty-printing within ghci
ghcid library, program and test: GHCi based bare bones IDE
ghcide library, programs, test and benchmark: The core of an IDE
ghcprofview program: GHC .prof files viewer
ghczdecode program: Decode Z-encoded strings from GHC
ght library and program: Trivial routines for inspecting git repositories
giak program: Fuzzy finder for cabal executables
gipeda program: Git Performance Dashboard
git library and tests: Git operations in haskell
git-all program: Determine which Git repositories need actions to be taken
git-checklist program: Maintain per-branch checklists in Git
git-fmt program: Custom git command for formatting code.
git-gpush program: More intelligent push-to-GitHub utility.
git-jump program: Move a git branch
git-mediate program: Tool to help resolving git conflicts
git-monitor program: Passively snapshots working tree changes efficiently.
git-sanity library and program: A sanity checker for your git history.
git-vogue library, programs and test: A framework for pre-commit checks.
githash library and test: Compile git revision info into Haskell projects
github-tools programs: Various Github helper utilities.
gitHUD library, program and test: More efficient replacement to the great git-radar
githud library, programs and test: Heads up, and you see your GIT context
gitignore program: Apply GitHub .gitignore templates to already existing repositories.
gitrev library: Compile git revision info into Haskell projects
graph-visit library: Graph walk abstraction
graphmod program: Present the module dependencies of a program as a "dot" graph.
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
grasp library, program and test: GRASP implementation for the AMMM project.
greencard-lib library: A foreign function interface pre-processor library for Haskell
grm library and program: grm grammar converter
gtk2hs-buildtools library and programs: Tools to build the Gtk2Hs suite of User Interface libraries.
guess-combinator library: Generate simple combinators given their type
GuiHaskell program: A graphical REPL and development environment for Haskell
hackage-proxy program: Provide a proxy for Hackage which modifies responses in some way. (deprecated)
hackmanager library and program: Generate useful files for Haskell projects
haddock-leksah program: A documentation-generation tool for Haskell libraries
hadolint library, program and test: Dockerfile Linter JavaScript API
hake library and program: make tool. ruby : rake = haskell : hake
halberd library, program and test: A tool to generate missing import statements for Haskell modules.
halive library, program and tests: A live recompiler
haltavista program: looks for functions given a set of example input/outputs
hannahci program: Simple Continuous Integration/Deployment System
happraise program: A small program for counting the comments in haskell source
happy program and test: Happy is a parser generator for Haskell
happy-meta library: Quasi-quoter for Happy parsers
happybara library: Acceptance test framework for web applications
happybara-webkit library: WebKit Happybara driver
happybara-webkit-server library: WebKit Server binary for Happybara (taken from capybara-webkit)
HaRe program and test: the Haskell Refactorer.
harmony library, program and tests: A web service specification compiler that generates implementation and tests.
haskdogs program: Generate tags file for Haskell project and its nearest deps
haskell-ci library, program and test: Cabal package script generator for Travis-CI
haskell-dap library: Haskell implementation of the DAP interface data.
haskell-debug-adapter program and test: Haskell Debug Adapter.
haskell-docs library, program and test: A program to find and display the docs and type of a name
haskell-formatter library, program and test: Haskell source code formatter
haskell-gi library and test: Generate Haskell bindings for GObject Introspection capable libraries
haskell-gi-base library: Foundation for libraries generated by haskell-gi
haskell-import-graph library and program: create haskell import graph for graphviz
haskell-language-server library, programs and tests: LSP server for GHC
haskell-lsp library, program and test: Haskell library for the Microsoft Language Server Protocol
haskell-lsp-client library and program: A haskell package to build your own Language Server client.
haskell-lsp-types library: Haskell library for the Microsoft Language Server Protocol, data types
haskell-src-exts-simple library: A simplified view on the haskell-src-exts AST
haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
haskell-token-utils library and test: Utilities to tie up tokens to an AST
haskellscript program: Command line tool for running Haskell scripts with a hashbang.
hasktags library, program and test: Produces ctags "tags" and etags "TAGS" files for Haskell programs
hat library and programs: The Haskell tracer, generating and viewing Haskell execution traces
hayoo-cli program: Hayoo CLI
hbb program: Haskell Busy Bee, a backend for text editors.
hCM library, program and test: Conceptual modelling support for Haskell
hdevtools program: Persistent GHC powered background server for FAST haskell development tools
hdirect library and program: An IDL compiler for Haskell
hdocs library, program and test: Haskell docs tool
headergen program: Creates a header for a haskell source file.
heapsize library and benchmark: Determine the size of runtime data structures
hedgehog-generic library: GHC Generics automatically derived hedgehog generators
hein program: An extensible build helper for haskell, in the vein of leiningen.
help-esb library: A Haskell client for the Help.com team's ESB.
hesh library and program: the Haskell Extensible Shell: Haskell for Bash-style scripts
hfd program: Flash debugger
hgdbmi library and tests: GDB Machine Interface: program-driven control of GDB
hgrev library: Compile Mercurial (hg) version info into Haskell code
hhp library, programs and tests: Happy Haskell Programming
hi-file-parser library and test: Parser for GHC's hi files
hie-bios library, program and tests: Set up a GHC API session
hie-compat library: HIE files for GHC 8.6 and other HIE file backports
hie-core library, program and test: The core of an IDE
hiedb library, program and test: Generates a references DB from .hie files
highWaterMark program: Memory usage statistics
hindent library, program, test and benchmark: Extensible Haskell pretty printer
hit program: Git like program in haskell
hit-graph library: Use graph algorithms to access and manipulate Git repos
hlint library and program: Source code suggestions
HListPP program: A preprocessor for HList labelable labels
hls-brittany-plugin library and test: Integration with the Brittany code formatter
hls-class-plugin library: Class/instance management plugin for Haskell Language Server
hls-eval-plugin library: Eval plugin for Haskell Language Server
hls-explicit-imports-plugin library: Explicit imports plugin for Haskell Language Server
hls-haddock-comments-plugin library: Haddock comments plugin for Haskell Language Server
hls-hlint-plugin library: Hlint integration plugin with Haskell Language Server
hls-plugin-api library: Haskell Language Server API for plugin communication
hls-retrie-plugin library: Retrie integration plugin for Haskell Language Server
hls-splice-plugin library: HLS Plugin to expand TemplateHaskell Splices and QuasiQuotes
hls-tactics-plugin library, program and test: Wingman plugin for Haskell Language Server
hmk library and program: A make alternative based on Plan9's mk.
hmumps program: Interpreter for the MUMPS langugae
holy-project library, programs and test: Start your Haskell project with cabal, git and tests.
homoiconic library and tests: Constructs FAlgebras from typeclasses, making Haskell functions homoiconic
hoobuddy program: Simple tool for fetching and merging hoogle data
hoogle library and program: Haskell API Search
hothasktags program: Generates ctags for Haskell, incorporating import lists and qualified imports
houseman library, program and test: A Haskell implementation of Foreman
hp2any-core library: Heap profiling helper library
hp2any-graph programs: ...
hp2any-manager program: A utility to visualise and compare heap profiles.
hp2pretty program: generate pretty graphs from heap profiles
hpack library, program and test: A modern format for Haskell packages
hpack-convert library, program and test: Convert Cabal manifests into hpack's package.yamls
hpack-dhall library, programs and test: hpack's dhalling
hpaco program: Modular template compiler
hpaco-lib library: Modular template compiler library
hpage program: A scrapbook for Haskell developers
hpc-threshold library, program and test: Ensure the code coverage is above configured thresholds
hpp library, program and test: A Haskell pre-processor
hs-di library, program and test: Dependency Injection library for Haskell
hs-pkg-config library: Create pkg-config configuration files
hs-speedscope library and program: Convert an eventlog into the speedscope json format
hs-tags program: Create tag files (ctags and etags) for Haskell code.
Hs2lib library, programs and tests: ...
hsb2hs program: Preprocesses a file, adding blobs from files as string literals.
hsbencher library and tests: Launch and gather data from Haskell and non-Haskell benchmarks.
hsc2hs program and test: A preprocessor that helps with writing Haskell bindings to C code
hscaffold library, program and test: Very simple file/directory structure scaffolding writer monad EDSL
hscurses-fish-ex program: hscurses swimming fish example
hsdev library, program and test: Haskell development library
hsenv program: Virtual Haskell Environment builder
hsfcsh programs: Incremental builder for flash
hsfilt program: Z-decoder.
hsimport library, program and test: Extend the import list of a Haskell source file
hslinks program: Resolves links to Haskell identifiers.
hspec-dirstream library and test: Helper functions to simplify adding integration tests.
hspec-setup library, program and test: Add an hspec test-suite in one command
hssourceinfo programs: get haskell source code info
HsSVN library: Partial Subversion (SVN) binding for Haskell
hstyle program: Checks Haskell source code for style compliance.
hsubconvert program: One-time, faithful conversion of Subversion repositories to Git
htags program: A Haskell98 parsing tags program similar to ctags.
http-download library and test: Verified downloads with retries
hub program: For multiplexing GHC installations and providing development sandboxes
hugs2yc library: Hugs Front-end to Yhc Core.
hw-ci-assist library, program and test: CI Assistant for Haskell projects
hwk program: Commandline text processing with Haskell functions
hzenity library: Haskell interface to Zenity dialogs
ide-backend library, program and tests: An IDE backend library
ide-backend-common library: Shared library used be ide-backend and ide-backend-server
ide-backend-rts library: RTS for the IDE backend
ide-backend-server program: An IDE backend server
idringen library, program and test: A project manage tool for Idris.
ihaskell library, program and test: A Haskell backend kernel for the IPython project.
ihaskell-aeson library: IHaskell display instances for Aeson
ihaskell-basic library: IHaskell display instances for basic types
ihaskell-blaze library: IHaskell display instances for blaze-html types
ihaskell-charts library: IHaskell display instances for charts types
ihaskell-diagrams library: IHaskell display instances for diagram types
ihaskell-display library: IHaskell display instances for basic types
ihaskell-gnuplot library: IHaskell display instance for Gnuplot (from gnuplot package)
ihaskell-graphviz library: IHaskell display instance for GraphViz (external binary)
ihaskell-hatex library: IHaskell display instances for hatex
ihaskell-hvega library: IHaskell display instance for hvega types.
ihaskell-inline-r library: Embed R quasiquotes and plots in IHaskell notebooks.
ihaskell-juicypixels library: IHaskell - IHaskellDisplay instances of the image types of the JuicyPixels package.
ihaskell-magic library: IHaskell display instances for bytestrings
ihaskell-parsec library: IHaskell display instances for Parsec
ihaskell-plot library: IHaskell display instance for Plot (from plot package)
ihaskell-rlangqq library: a rDisp quasiquote to show plots from Rlang-QQ in IHaskell
ImperativeHaskell library: A library for writing Imperative style haskell.
impl library: Framework for defaulting superclasses
implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles
importify library, programs and test: Tool for haskell imports refactoring
imports library and test: Generate code for importing directories automatically
include-file library, test and benchmark: Inclusion of files in executables at compile-time.
infer-license library and test: Infer software license from a given license file
infer-upstream program: Find the repository from where a given repo was forked
interlude library: Replaces some Prelude functions for enhanced error reporting
intero program and test: Complete interactive development program for Haskell
ip2location library: IP2Location Haskell package for IP geolocation.
ip2proxy library: IP2Proxy Haskell package for proxy detection.
ipatch program: interactive patch editor
ipython-kernel library and programs: A library for creating kernels for IPython frontends
iridium library and program: Automated Local Cabal Package Testing and Uploading
itanium-abi library and test: An implementation of name mangling/demangling for the Itanium ABI
itcli program: Issue Tracker for the CLI
iterm-show library and program: Enable graphical display of images inline on some terminals
iterm-show-JuicyPixels library: Orphan Show instances for JuciyPixels image types.
ja-base-extra library: Extra functions I require in base
jarfind library and program: Tool for searching java classes, members and fields in classfiles and JAR archives
java-character library: Functions to simulate Java's Character class.
javasf program and test: A utility to print the SourceFile attribute of one or more Java class files.
javav program and test: A utility to print the target version of Java class files.
jbi library and program: Just Build It - a "do what I mean" abstraction for Haskell build tools
jenga library and program: Generate a cabal freeze file from a stack.yaml
json-pointy library and tests: JSON Pointer (RFC 6901) parsing, access, and modification
jupyter library, programs and test: A library for creating and using Jupyter kernels.
kansas-lava-shake library: Shake rules for building Kansas Lava projects
kdesrc-build-extra program: Build profiles for kdesrc-build
kdesrc-build-profiles program: Build profiles for kdesrc-build
keera-hails-i18n library and tests: Rapid Gtk Application Development - I18N
keera-hails-mvc-controller library and tests: Haskell on Gtk rails - Gtk-based controller for MVC applications
keera-hails-mvc-environment-gtk library and tests: Haskell on Gtk rails - Gtk-based global environment for MVC applications
keera-hails-mvc-model-lightmodel library and tests: Rapid Gtk Application Development - Reactive Protected Light Models
keera-hails-mvc-model-protectedmodel library and tests: Rapid Gtk Application Development - Protected Reactive Models
keera-hails-mvc-solutions-config library: Haskell on Gtk rails - Easy handling of configuration files
keera-hails-mvc-solutions-gtk library: Haskell on Gtk rails - Common solutions to recurrent problems in Gtk applications
keera-hails-mvc-view library: Haskell on Gtk rails - Generic View for MVC applications
keera-hails-mvc-view-gtk library: Haskell on Gtk rails - Gtk-based View for MVC applications
keera-hails-reactive-cbmvar library and tests: Reactive Haskell on Rails - CBMVars as reactive values
keera-hails-reactive-fs library: Haskell on Rails - Files as Reactive Values
keera-hails-reactive-gtk library and tests: Haskell on Gtk rails - Reactive Fields for Gtk widgets
keera-hails-reactive-network library and tests: Haskell on Rails - Sockets as Reactive Values
keera-hails-reactive-polling library: Haskell on Rails - Polling based Readable RVs
keera-hails-reactive-wx library and tests: Haskell on Rails - Reactive Fields for WX widgets
keera-hails-reactive-yampa library and tests: Haskell on Rails - FRP Yampa Signal Functions as RVs
keera-hails-reactivelenses library: Reactive Haskell on Rails - Lenses applied to Reactive Values
keera-hails-reactivevalues library and tests: Haskell on Rails - Reactive Values
keiretsu program: Multi-process orchestration for development and integration testing
kit program: A dependency manager for Xcode (Objective-C) projects
labels library: Anonymous records via named tuples
lambdabot program: Lambdabot is a development tool and advanced IRC bot
lambdabot-core library: Lambdabot core functionality
lambdabot-haskell-plugins library: Lambdabot Haskell plugins
lambdabot-irc-plugins library: IRC plugins for lambdabot.
lambdabot-misc-plugins library: Lambdabot miscellaneous plugins
lambdabot-novelty-plugins library: Novelty plugins for Lambdabot
lambdabot-reference-plugins library: Lambdabot reference plugins.
lambdabot-social-plugins library: Social plugins for Lambdabot
lambdabot-trusted library: Lambdabot trusted code.
lambdabot-utils library: Utility libraries for the advanced IRC bot, Lambdabot
lambdabot-xmpp program: Lambdabot plugin for XMPP (Jabber) protocol
Lambdajudge library and test: A library to easily host Haskell based programming competitions
lambdiff program: Diff Viewer
language-docker library and test: Dockerfile parser, pretty-printer and embedded DSL
language-dockerfile library, programs and tests: Dockerfile linter, parser, pretty-printer and embedded DSL
Lastik library: A library for compiling programs in a variety of languages
LazyVault program: A simple sandboxing tool for Haskell packages.
leksah library and program: Haskell IDE written in Haskell
lentil program and test: frugal issue tracker
lhs2html program: Compile lhs in bird style to md, html, hs.
lhs2tex program: Preprocessor for typesetting Haskell sources with LaTeX
lhs2TeX-hl program: Literate highlighter preprocessor for lhs2tex
libgit library: Simple Git Wrapper
libhbb library, program and test: Backend for text editors to provide better Haskell editing support.
libiserv library: Provides shared functionality between iserv and iserv-proxy
life-sync library, program and test: Synchronize personal configs across multiple machines.
linearscan library: Linear scan register allocator, formally verified in Coq
linearscan-hoopl library and test: Makes it easy to use the linearscan register allocator with Hoopl
linux-perf library and programs: Read files generated by perf on Linux
liquidhaskell-cabal library: Liquid Haskell integration for Cabal and Stack
liquidhaskell-cabal-demo library and program: Demo of Liquid Haskell integration for Cabal and Stack
lit program: A simple tool for literate programming
llvm-analysis library and tests: A Haskell library for analyzing LLVM bitcode
llvm-tools library and programs: Useful tools built on llvm-analysis
located-base library and benchmark: Location-aware variants of partial functions
loch library and program: Support for precise error locations in source files
loch-th library: Support for precise error locations in source files (Template Haskell version)
logict-state library: Library for logic programming based on haskell package logict
lsp library, programs and test: Haskell library for the Microsoft Language Server Protocol
lsp-types library: Haskell library for the Microsoft Language Server Protocol, data types
lushtags program: Create ctags compatible tags files for Haskell programs
macosx-make-standalone program: Make a macosx app standalone deployable
make-package program: Make a cabalized package
makedo library: Helper for writing redo scripts in Haskell
markdown-unlit library, program and test: Literate Haskell support for Markdown
marmalade-upload library, programs and test: Upload packages to Marmalade
marvin library, programs and test: A framework for modular, portable chat bots.
MASMGen library and test: Generate MASM code from haskell
maybench library and programs: Automated benchmarking tool
merkle-tree library and test: An implementation of a Merkle tree and merkle tree proofs of inclusion
MetaObject library: A meta-object system for Haskell based on Perl 6
microbench library: Microbenchmark Haskell code
miss library and test: A Haskell git implimentation
miss-porcelain library: Useability extras built on top of miss.
MissingK library: Useful types and definitions missing from other libraries
mm2 library: ...
mmsyn2 library: The library that can be used for multiple (Ord a) => a -> b transformations
mmsyn2-array library: ...
module-management library, program and test: Clean up module imports, split and merge modules
monad-log library: A simple and fast logging monad
monadlog library: A simple and fast logging monad
monadtransform library: A type-class for transforming monads (homomorphism) in a transformer
mps library: simply oo
mueval library and programs: Safely evaluate pure Haskell expressions
multi-cabal library, program and test: A tool supporting multi cabal project builds.
multiprocess library: Multiprocess architecture library
murder library: MUtually Recursive Definitions Explicitly Represented
mustache library, program and tests: A mustache template parser library.
names-th library: Manipulate name strings for TH
neil program: General tools for Neil
niv library, program and test: Easy dependency management for Nix projects
nixfmt library and programs: An opinionated formatter for Nix
nm library and program: Network Manager, binding to libnm-glib.
nofib-analyse program: Parse and compare nofib runs
nofib-analyze program: Parse and compare nofib runs
normalize-imports program and test: Sort and align Haskell import statements
NoSlow programs: Microbenchmarks for various array libraries
nothunks library and test: Examine values for unexpected thunks
NoTrace library and test: Remove all the functions come from Debug.Trace after debugging
nptools programs: A collection of random tools
nsis library and test: DSL for producing Windows Installer using NSIS.
nyan program: Bored? Nyan cat!
old-version library: Basic versioning library.
omnifmt library and program: A pretty-printer wrapper to faciliate ease of formatting during development.
open-haddock program: Open haddock HTML documentation
optional library and test: Using type-classes for optional function arguments
optparse-text library and test: Data.Text helpers for optparse-applicative
organize-imports program: Organize scala imports
ormolu library, program and test: A formatter for Haskell source code
OrPatterns library: A quasiquoter for or-patterns
package-o-tron library and programs: Utilities for working with cabal packages and your package database
package-vt program: Haskell Package Versioning Tool
pandoc-unlit program: Literate Haskell support for GitHub's Markdown flavor
panic library: A convenient way to panic.
pantry library and test: Content addressable Haskell package management
pantry-tmp library and test: Content addressable Haskell package management
paramtree library and test: Generate labelled test/benchmark trees from sets of parameters
parochial library and program: Help Manage project specific documentation
parser-helper program: Prints Haskell parse trees in JSON.
PartialTypeSignatures library: emulate partial type signatures with template haskell
pcap-conduit library: Conduit <-> libpcap
pdynload library: pdynload is polymorphic dynamic linking library.
phoityne program and test: Deprecated - ghci debug viewer with simple editor.
phoityne-vscode program: Haskell Debug Adapter for Visual Studio Code.
pier program: Yet another Haskell build system.
pier-core library: A library for writing forwards-declared build systems in haskell.
pinch library and test: An alternative implementation of Thrift for Haskell.
pinch-gen program: A code generator for the pinch Thrift library.
pinchot library and programs: Write grammars, not parsers
pisigma library and program: A dependently typed core language
pkggraph program: Package dependency graph for installed packages
placeholders library: Placeholders for use while developing Haskell code
pointful library and program: Pointful refactoring tool
policeman library, program and test: Haskell PVP version adviser
porter library: Implementation of the Porter stemming algorithm
present library: Make presentations for data types.
prof2dot program: Convert GHC profiles into GraphViz's dot format
prof2pretty programs: generate pretty source from time/allocation profiles
profiterole program: Restructure GHC profile reports
profiteur program: Treemap visualiser for GHC prof files
progression library: Automates the recording and graphing of criterion benchmarks
project-template library and test: Specify Haskell project templates and generate files
prototype library: prototype-based programming on Haskell
prune-juice library, program and test: Prune unused Haskell dependencies
psc-ide library, programs and test: Language support for the PureScript programming language
pseudomacros library: cpp-style built-in macros using Template Haskell
pure-io library: Pure IO monad.
purescript-bundle-fast program: A fast alternative to Purescript's `psc-bundle` to be used during development
python-pickle library, program and test: Serialization/deserialization using Python Pickle format.
QuickAnnotate library and program: Annotation Framework
quickbench library, program and test: quick & easy benchmarking of command-line programs
quickterm library and program: An interface for describing and executing terminal applications
radian library and test: Isomorphisms for measurements that use radians.
random-derive library: A Template Haskell helper for deriving Random instances
rapid library: ...
rapid-term library: External terminal support for rapid
rattle library, programs and test: Forward build system, with caching and speculation
reactive-banana-gi-gtk library and test: Simple reactive programming with GTK GObject Introspection
readme-lhs library, program and test: Literate programming support.
record-dot-preprocessor program and test: Preprocessor to allow record.field syntax
record-hasfield library and test: A version of GHC.Records as available in future GHCs.
record-wrangler library and test: Alter your records with ease
refact library: Specify refactorings to perform with apply-refact
reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
rehoo program: Rebuild default.hoo from many .hoo files in the current directory
releaser library and program: Automation of Haskell package release process
repl library: IRC friendly REPL library.
requirements library: Abstraction to manage user defined Type Errors
resolve-trivial-conflicts program: Remove trivial conflict markers in a git repository
resource-embed program: Embed data files via C and FFI.
restyle library and program: Convert between camel case and separated words style.
retrie library, programs and test: A powerful, easy-to-use codemodding tool for Haskell.
ReviewBoard library and programs: Haskell bindings to ReviewBoard
rio-prettyprint library: Pretty-printing for RIO
Rlang-QQ library and tests: quasiquoter for inline-R code
robin program: A build daemon for Haskell development
rock library, program and test: A build system for incremental, parallel, and demand-driven computations
ruler program: Ruler tool for UHC
ruler-core program
sandman program: Manages Cabal sandboxes to avoid rebuilding packages.
sarsi library and programs: A universal quickfix toolkit and his protocol.
scan program: lexical style suggestions for source code
schedevr programs: Marge schedules and show EVR
scion library and program: Haskell IDE library
scion-browser library and program: Command-line interface for browsing and searching packages documentation
scons2dot program: Generates graphviz file of scons dependency information
scope library: An interactive renderer for plotting time-series data
scope-cairo library and program: An interactive renderer for plotting time-series data
scotty-fay library and test: Fay integration for Scotty.
semdoc library and program: Evaluate code snippets in Literate Haskell.
sensei programs and test: Automatically run Hspec tests on file modifications
sequent-core library and programs: Alternative Core language for GHC plugins
sexp-show program: Produce a s-expression representation of Show values.
shake library, program and test: Build system library, like Make, but more accurate dependencies.
shake-ats library: Utilities for building ATS projects with shake
shake-bench library: Build rules for historical benchmarking
shake-c library: Library for building C code with shake
shake-cabal library: Shake library for use with cabal
shake-cabal-build program: Utility for building Shake build systems using Cabal sandboxes
shake-ccjs library: Shake rules for CCJS
shake-elm library: Elm builds in shake
shake-ext library: Helper functions for linting with shake
shake-futhark library: Dependency tracking for Futhark
shake-google-closure-compiler library: Shake rules for the Google closure compiler
shake-language-c library and tests: Utilities for cross-compiling with Shake
shake-literate library: Rules for building literate programs in shake
shake-minify library: Shake Minify Rules
shake-minify-css library: Shake rules for CSS
shake-pack library: Shake File Pack Rule
shake-path library: path alternatives to shake functions
shake-persist library and program: Shake build system on-disk caching
shake-plus library: Re-export of Shake using well-typed paths and ReaderT.
shake-plus-extended library: Experimental extensions to shake-plus
shaker library and program: simple and interactive command-line build tool
shakers library: Shake helpers.
shellish library: shell-/perl- like (systems) programming in Haskell
shelly library, programs and test: shell-like (systems) programming in Haskell
shelly-extra library and test: shelly features that require extra dependencies
shower library, program and test: Clean up the formatting of 'show' output
shuffle library and program: Shuffle tool for UHC
silvi library and test: A generator for different kinds of data.
simple-get-opt library: A simple library for processing command-line options.
simple-src-utils programs and tests: source code editing utilities
simple-text-format library and test: Simple text based format strings with named identifiers.
sizes program: Recursively show space (size and i-nodes) used in subdirectories
skeletons program: Manage project skeletons
slice-cpp-gen program: Generate C++ skeletons from slice files
smartconstructor library: A package exposing a helper function for generating smart constructors.
smuggler library, program and test: GHC Source Plugin that helps to manage imports
smuggler2 library and test: GHC Source Plugin that helps to minimise imports and generate explicit exports
snipcheck library: Markdown tester
SourceGraph program: Static code analysis using graph-theoretic techniques.
sourcemap library, test and benchmark: Implementation of source maps as proposed by Google and Mozilla.
sparsebit library: Sparse bitmaps for pattern match coverage
splint library: HLint as a GHC source plugin.
spy program and test: A compact file system watcher for Mac OS X, Linux and Windows
squeather library and test: Use databases with the version 3 series of the SQLite C library
stack library, program and tests: The Haskell Tool Stack
stack-bump program and test: Dead simple version bumping for hpack packages
stack-fix program: Console program used to fix Stack build errors automatically
stack-lib library: Wrapper to use stack as a library
stack-run program: An equivalent to cabal run for stack.
stack-run-auto library, programs and test: Initial project template from stack
stack-templatizer program: Generate a stack template from a folder.
stack-wrapper library and programs: Call ghc within stack by calling ghc
stack-yaml library and test: Parse a stack.yaml file
stackage library: Dummy package forcing installation of other Stackage packages
stackage-cabal library and programs: A CLI executable for cabal-based stackage commands
stackage-cli library and programs: A CLI library for stackage commands
stackage-sandbox library and program: Work with shared stackage sandboxes
stackage-setup library and program: An executable for downloading a Haskell setup
standalone-derive-topdown library: ...
starter library: Develop applications without restarts
staversion library, program and tests: What version is the package X in stackage lts-Y.ZZ?
stc-lang library, program and test: A library for implicit, monadic dataflow parallelism
steeloverseer library, program and test: A file watcher and development tool.
stepwise library
stgi library, program and tests: Educational implementation of the STG (Spineless Tagless G-machine)
structured-haskell-mode program: Structured editing Emacs mode for Haskell
styx program: A generator of nix files
subG library: Some extension to the Foldable and Monoid classes.
subG-instances library: Additional instances for the InsertLeft class from subG package.
summoner library, program and test: ...
summoner-tui program: ...
symon program: Minimal implementation(s) of the classic electronic memory game.
SyntaxMacros library: Syntax Macros in the form of an EDSL
tasty-bench library: Featherlight benchmark framework
testcontainers library and test: Docker containers for your integration tests.
testloop library: Quick feedback loop for test suites
th-abstraction library and test: Nicer interface for reified information about data types
th-fold library: TH fold generator
th-inline-io-action library: Simple inline IO action into compiled code using TH
th-pprint library: Simplify and render Template Haskell
themplate program: Project templating tool
threadscope program: A graphical tool for profiling parallel Haskell programs.
time-io-access library: IO Access for time
timelens library: Lenses for the time package
timeless library: An Arrow based Functional Reactive Programming library
tkyprof programs: A web-based visualizer for GHC Profiling Reports
tokstyle library, programs and test: TokTok C code style checker
tracetree library and program: Visualize Haskell data structures as edge-labeled trees
TraceUtils library: Functions that should have been in Debug.Trace
trackit program: A command-line tool for live monitoring
tracy library: Convenience wrappers for non-intrusive debug tracing
TransformersStepByStep program: Tutorial on monad transformers.
travis-meta-yaml library, program and test: .travis.yml preprocessor
travis-pogodi library and program: A better travis_wait
trawl program: A tool for finding haddocks
trurl library, program and test: Haskell template code generator
tyfam-witnesses library: Provide proof witnesses for closed type family evaluation
typalyze programs: Analyzes Haskell source files for easy reference
type-prelude library: Partial port of prelude to the type level. Requires GHC 7.6.1.
typeof program: Small script for inferring types
uhc-light library and programs: Part of UHC packaged as cabal/hackage installable library
uhc-util library: UHC utilities
ui-command library and program: A framework for friendly commandline programs
unpacked-either library and test: An unpacked either data type
unpacked-maybe library and test: An unpacked maybe data type
unpacked-these library and test: An unpacked these data type
unpacked-validation library and test: An unpacked validation data type
urembed program: Ur/Web static content generator
urxml program: XML parser-printer supporting Ur/Web syntax extensions
UtilityTM library: Utility functions that are missing from the standard library
uuagc library and program: Attribute Grammar System of Universiteit Utrecht
uuagc-bootstrap library and program: Attribute Grammar System of Universiteit Utrecht
uuagc-cabal library: Cabal plugin for UUAGC
uuagd library and program: A debugger for the UUAG system.
vabal program and test: the cabal companion
vabal-lib library and test: Core algorithms and datatypes used by vabal
vacuum-cairo library: Visualize live Haskell data structures using vacuum, graphviz and cairo
vacuum-opengl library and program: Visualize live Haskell data structures using vacuum, graphviz and OpenGL.
vacuum-ubigraph library: Visualize Haskell data structures using vacuum and Ubigraph
vado library, programs and test: Runs commands on remote machines using ssh
vampire library and program: Analyze and visualize expression trees.
vcsgui library and programs: GUI library for source code management systems
vcswrapper library and program: Wrapper for source code management systems
viewprof program: Text-based interactive GHC .prof viewer
virthualenv program: Virtual Haskell Environment builder
visual-graphrewrite library and program: Visualize the graph-rewrite steps of a Haskell program
visual-prof program: Create a visual profile of a program's source code
visualize-cbn program: Visualize CBN reduction
wai-make-assets library, program and test: Compiling and serving assets
watchit library, program and test: File change watching utility
weeder library and program: Detect dead code
workflow-types library and program: Automate keyboard\/mouse\/clipboard\/application interaction.
workflow-windows program and tests: Automate keyboard/mouse/clipboard/application interaction.
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell
xgboost-haskell library and programs: XGBoost library for Haskell.
ycextra library: Additional utilities to work with Yhc Core.
yesod-fast-devel program: Fast live-reloading for yesod applications.
yhccore library: Yhc's Internal Core language.
yi-contrib library: Add-ons to Yi, the Haskell-Scriptable Editor
zephyr library, program and test: Zephyr, tree-shaking for the PureScript language
zoom-cache library, program and test: A streamable, seekable, zoomable cache file format
zuul library, program and test: A zuul client library

DevOps

deptrack-devops library: DepTrack applied to DevOps.
gothic library: A Haskell Vault KVv2 secret engine client
hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
hercules-ci-cnix-expr library: Bindings for the Nix evaluator

DFINITY

dfinity-radix-tree library, program and test: A generic data integrity layer.

Dhall

cpkg library, program and test: Build tool for C
dhall-fly library, program and test: Translate concourse config from Dhall to YAML
dhall-lex library, test and benchmark: Lexer for the Dhall language
dhall-recursive-adt library and tests: Convert recursive ADTs from and to Dhall
servant-dhall library and test: Servant Dhall content-type
shake-dhall library and test: Dhall dependencies

Dhall Pandoc

compdoc-dhall-decoder library: Allows you to write FromDhall instances for Compdoc
pandoc-dhall-decoder library: Decodes pandoc to dhall.

Diagnostics

pretty-loc library: Tracking and highlighting of locations in source files
trifecta library and test: A modern parser combinator library with convenient diagnostics

Diagram

asciidiagram library and program: Pretty rendering of Ascii diagram into svg or png.

Diffing

pretty-diff library and test: Pretty printing a diff of two values.

Digest

murmur-hash library: MurmurHash2 implementation for Haskell.
murmurhash3 library: 32-bit non-cryptographic hashing

Dijkstra

dijkstra-simple library and test: A simpler Dijkstra shortest paths implementation

Disassembler

disassembler library: Disassembler for X86 & AMD64 machine code
hapstone library and test: Capstone bindings for Haskell
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
zydiskell library and test: Haskell language binding for the Zydis library, a x86/x86-64 disassembler.

Distributed Computing

AERN-Net library: Compositional lazy dataflow networks for exact real number computation
amazonka library and test: Comprehensive Amazon Web Services SDK.
amazonka-alexa-business library and test: Amazon Alexa For Business SDK.
amazonka-apigateway library and test: Amazon API Gateway SDK.
amazonka-application-autoscaling library and test: Amazon Application Auto Scaling SDK.
amazonka-appstream library and test: Amazon AppStream SDK.
amazonka-appsync library and test: Amazon AppSync SDK.
amazonka-athena library and test: Amazon Athena SDK.
amazonka-autoscaling library and test: Amazon Auto Scaling SDK.
amazonka-autoscaling-plans library and test: Amazon Auto Scaling Plans SDK.
amazonka-batch library and test: Amazon Batch SDK.
amazonka-budgets library and test: Amazon Budgets SDK.
amazonka-certificatemanager library and test: Amazon Certificate Manager SDK.
amazonka-certificatemanager-pca library and test: Amazon Certificate Manager Private Certificate Authority SDK.
amazonka-cloud9 library and test: Amazon Cloud9 SDK.
amazonka-clouddirectory library and test: Amazon CloudDirectory SDK.
amazonka-cloudformation library and test: Amazon CloudFormation SDK.
amazonka-cloudfront library and test: Amazon CloudFront SDK.
amazonka-cloudhsm library and test: Amazon CloudHSM SDK.
amazonka-cloudhsmv2 library and test: Amazon CloudHSM V2 SDK.
amazonka-cloudsearch library and test: Amazon CloudSearch SDK.
amazonka-cloudsearch-domains library and test: Amazon CloudSearch Domain SDK.
amazonka-cloudtrail library and test: Amazon CloudTrail SDK.
amazonka-cloudwatch library and test: Amazon CloudWatch SDK.
amazonka-cloudwatch-events library and test: Amazon CloudWatch Events SDK.
amazonka-cloudwatch-logs library and test: Amazon CloudWatch Logs SDK.
amazonka-codebuild library and test: Amazon CodeBuild SDK.
amazonka-codecommit library and test: Amazon CodeCommit SDK.
amazonka-codedeploy library and test: Amazon CodeDeploy SDK.
amazonka-codepipeline library and test: Amazon CodePipeline SDK.
amazonka-codestar library and test: Amazon CodeStar SDK.
amazonka-cognito-identity library and test: Amazon Cognito Identity SDK.
amazonka-cognito-idp library and test: Amazon Cognito Identity Provider SDK.
amazonka-cognito-sync library and test: Amazon Cognito Sync SDK.
amazonka-comprehend library and test: Amazon Comprehend SDK.
amazonka-config library and test: Amazon Config SDK.
amazonka-connect library and test: Amazon Connect Service SDK.
amazonka-core library and test: Core data types and functionality for Amazonka libraries.
amazonka-cost-explorer library and test: Amazon Cost Explorer Service SDK.
amazonka-cur library and test: Amazon Cost and Usage Report Service SDK.
amazonka-datapipeline library and test: Amazon Data Pipeline SDK.
amazonka-devicefarm library and test: Amazon Device Farm SDK.
amazonka-directconnect library and test: Amazon Direct Connect SDK.
amazonka-discovery library and test: Amazon Application Discovery Service SDK.
amazonka-dms library and test: Amazon Database Migration Service SDK.
amazonka-ds library and test: Amazon Directory Service SDK.
amazonka-dynamodb library and test: Amazon DynamoDB SDK.
amazonka-dynamodb-dax library and test: Amazon DynamoDB Accelerator (DAX) SDK.
amazonka-dynamodb-streams library and test: Amazon DynamoDB Streams SDK.
amazonka-ec2 library and test: Amazon Elastic Compute Cloud SDK.
amazonka-ecr library and test: Amazon EC2 Container Registry SDK.
amazonka-ecs library and test: Amazon EC2 Container Service SDK.
amazonka-efs library and test: Amazon Elastic File System SDK.
amazonka-elasticache library and test: Amazon ElastiCache SDK.
amazonka-elasticbeanstalk library and test: Amazon Elastic Beanstalk SDK.
amazonka-elasticsearch library and test: Amazon Elasticsearch Service SDK.
amazonka-elastictranscoder library and test: Amazon Elastic Transcoder SDK.
amazonka-elb library and test: Amazon Elastic Load Balancing SDK.
amazonka-elbv2 library and test: Amazon Elastic Load Balancing SDK.
amazonka-emr library and test: Amazon Elastic MapReduce SDK.
amazonka-fms library and test: Amazon Firewall Management Service SDK.
amazonka-gamelift library and test: Amazon GameLift SDK.
amazonka-glacier library and test: Amazon Glacier SDK.
amazonka-glue library and test: Amazon Glue SDK.
amazonka-greengrass library and test: Amazon Greengrass SDK.
amazonka-guardduty library and test: Amazon GuardDuty SDK.
amazonka-health library and test: Amazon Health APIs and Notifications SDK.
amazonka-iam library and test: Amazon Identity and Access Management SDK.
amazonka-importexport library and test: Amazon Import/Export SDK.
amazonka-inspector library and test: Amazon Inspector SDK.
amazonka-iot library and test: Amazon IoT SDK.
amazonka-iot-analytics library and test: Amazon IoT Analytics SDK.
amazonka-iot-dataplane library and test: Amazon IoT Data Plane SDK.
amazonka-iot-jobs-dataplane library and test: Amazon IoT Jobs Data Plane SDK.
amazonka-kinesis library and test: Amazon Kinesis SDK.
amazonka-kinesis-analytics library and test: Amazon Kinesis Analytics SDK.
amazonka-kinesis-firehose library and test: Amazon Kinesis Firehose SDK.
amazonka-kinesis-video library and test: Amazon Kinesis Video Streams SDK.
amazonka-kinesis-video-archived-media library and test: Amazon Kinesis Video Streams Archived Media SDK.
amazonka-kinesis-video-media library and test: Amazon Kinesis Video Streams Media SDK.
amazonka-kms library and test: Amazon Key Management Service SDK.
amazonka-lambda library and test: Amazon Lambda SDK.
amazonka-lex-models library and test: Amazon Lex Model Building Service SDK.
amazonka-lex-runtime library and test: Amazon Lex Runtime Service SDK.
amazonka-lightsail library and test: Amazon Lightsail SDK.
amazonka-marketplace-analytics library and test: Amazon Marketplace Commerce Analytics SDK.
amazonka-marketplace-entitlement library and test: Amazon Marketplace Entitlement Service SDK.
amazonka-marketplace-metering library and test: Amazon Marketplace Metering SDK.
amazonka-mechanicalturk library and test: Amazon Mechanical Turk SDK.
amazonka-mediaconvert library and test: Amazon Elemental MediaConvert SDK.
amazonka-medialive library and test: Amazon Elemental MediaLive SDK.
amazonka-mediapackage library and test: Amazon Elemental MediaPackage SDK.
amazonka-mediastore library and test: Amazon Elemental MediaStore SDK.
amazonka-mediastore-dataplane library and test: Amazon Elemental MediaStore Data Plane SDK.
amazonka-migrationhub library and test: Amazon Migration Hub SDK.
amazonka-ml library and test: Amazon Machine Learning SDK.
amazonka-mobile library and test: Amazon Mobile SDK.
amazonka-mq library and test: Amazon MQ SDK.
amazonka-opsworks library and test: Amazon OpsWorks SDK.
amazonka-opsworks-cm library and test: Amazon OpsWorks for Chef Automate SDK.
amazonka-organizations library and test: Amazon Organizations SDK.
amazonka-pinpoint library and test: Amazon Pinpoint SDK.
amazonka-polly library and test: Amazon Polly SDK.
amazonka-pricing library and test: Amazon Price List Service SDK.
amazonka-rds library and test: Amazon Relational Database Service SDK.
amazonka-redshift library and test: Amazon Redshift SDK.
amazonka-rekognition library and test: Amazon Rekognition SDK.
amazonka-resourcegroups library and test: Amazon Resource Groups SDK.
amazonka-resourcegroupstagging library and test: Amazon Resource Groups Tagging API SDK.
amazonka-route53 library and test: Amazon Route 53 SDK.
amazonka-route53-autonaming library and test: Amazon Route 53 Auto Naming SDK.
amazonka-route53-domains library and test: Amazon Route 53 Domains SDK.
amazonka-s3 library and test: Amazon Simple Storage Service SDK.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
amazonka-sagemaker library and test: Amazon SageMaker Service SDK.
amazonka-sagemaker-runtime library and test: Amazon SageMaker Runtime SDK.
amazonka-sdb library and test: Amazon SimpleDB SDK.
amazonka-secretsmanager library and test: Amazon Secrets Manager SDK.
amazonka-serverlessrepo library and test: Amazon ServerlessApplicationRepository SDK.
amazonka-servicecatalog library and test: Amazon Service Catalog SDK.
amazonka-ses library and test: Amazon Simple Email Service SDK.
amazonka-shield library and test: Amazon Shield SDK.
amazonka-sms library and test: Amazon Server Migration Service SDK.
amazonka-snowball library and test: Amazon Import/Export Snowball SDK.
amazonka-sns library and test: Amazon Simple Notification Service SDK.
amazonka-sqs library and test: Amazon Simple Queue Service SDK.
amazonka-ssm library and test: Amazon Simple Systems Manager (SSM) SDK.
amazonka-stepfunctions library and test: Amazon Step Functions SDK.
amazonka-storagegateway library and test: Amazon Storage Gateway SDK.
amazonka-sts library and test: Amazon Security Token Service SDK.
amazonka-support library and test: Amazon Support SDK.
amazonka-swf library and test: Amazon Simple Workflow Service SDK.
amazonka-test library: Common functionality for Amazonka library test-suites.
amazonka-transcribe library and test: Amazon Transcribe Service SDK.
amazonka-translate library and test: Amazon Translate SDK.
amazonka-waf library and test: Amazon WAF SDK.
amazonka-waf-regional library and test: Amazon WAF Regional SDK.
amazonka-workdocs library and test: Amazon WorkDocs SDK.
amazonka-workmail library and test: Amazon WorkMail SDK.
amazonka-workspaces library and test: Amazon WorkSpaces SDK.
amazonka-xray library and test: Amazon X-Ray SDK.
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-sdk library and test: AWS SDK for Haskell
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
butter library and tests: Monad Transformer for Asyncronous Message Passing
cctools-workqueue library: High-level interface to CCTools' WorkQueue library
courier library, programs and test: A message-passing library for simplifying network applications
DSTM library and programs: A framework for using STM within distributed systems
edenmodules library: Semi-explicit parallel programming library
failure-detector library and test: Failure Detectors implimented in Haskell.
grpc-etcd-client library: gRPC client for etcd
hadoop-streaming library and test: A simple Hadoop streaming library
HAppS-Data library: HAppS data manipulation libraries
HAppS-IxSet library
HAppS-Server library: Web related tools and services.
HAppS-State library: Event-based distributed state.
HAppS-Util library: Web framework
happstack library and program: The haskell application server stack + code generation
happstack-contrib library and program: Web related tools and services.
happstack-data library and program: Happstack data manipulation libraries
happstack-helpers library: Convenience functions for Happstack.
happstack-ixset library and program: Efficient relational queries on Haskell sets.
happstack-state library and program: Event-based distributed state.
happstack-static-routing library: Support for static URL routing with overlap detection for Happstack.
happstack-util library and program: Web framework
haskell-mpi library and programs: Distributed parallel programming in Haskell using MPI.
hdph library and programs: Haskell distributed parallel Haskell
hdph-closure library: Explicit closures in Haskell distributed parallel Haskell
hlivy library: Client library for the Apache Livy REST API
Holumbus-Distribution library and programs: intra- and inter-program communication
Holumbus-MapReduce library and programs: a distributed MapReduce framework
Holumbus-Storage library and programs: a distributed storage system
linode library and test: Bindings to the Linode API
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
mpi-hs library, programs and tests: MPI bindings for Haskell
mpi-hs-binary library, programs and test: MPI bindings for Haskell
mpi-hs-cereal library, programs and test: MPI bindings for Haskell
mpi-hs-store library, programs and test: MPI bindings for Haskell
net-concurrent library: Concurrent over the network execution library
protocol library: Model distributed system as type-level multi-party protocol
remote library: Cloud Haskell
sirkel library: Sirkel, a Chord DHT
sparkle library and program: Distributed Apache Spark applications in Haskell
task-distribution library, programs and test: Distributed processing of changing tasks
transient-universe library, programs and test: fully composable remote execution for the creation of distributed systems
vector-clock library and test: Vector clocks for versioning message flows
wolf library and programs: Amazon Simple Workflow Service Wrapper.

Distributed Systems

crdt library: Conflict-free replicated data types
libraft library, program and test: Raft consensus algorithm
protocol library: Model distributed system as type-level multi-party protocol
ron library and benchmark: RON
ron-rdt library: Replicated Data Types (RON-RDT)
ron-schema library: RON-Schema
ron-storage library: RON Storage

Distribution

arch-hs library and programs: Distribute hackage packages to archlinux
archlinux library: Support for working with Arch Linux packages.
archlinux-web library and programs: Website maintenance for Arch Linux packages
archnews program: Convert Arch Linux package updates in RSS to pretty markdown
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
asset-bundle library: A build-time Cabal library that bundles executables with assets
autopack library: Custom Setup to automate package modules discovery
bdcs library, programs and test: Tools for managing a content store of software packages
binembed library and program: Embed data into object files.
binembed-example program: Example project using binembed to embed data in object files.
Blueprint library: Preview of a new build system.
cab library and program: A maintenance command of Haskell cabal packages
Cabal library and tests: A framework for packaging Haskell software
cabal-appimage library: Cabal support for creating AppImage applications
cabal-audit program: Check how up-to-date your .cabal dependencies are.
cabal-auto-expose library: Build time library that autodetects exposed modules
cabal-build-programs library: Adds executable dependencies to the Cabal build
cabal-constraints program: Repeatable builds for cabalized Haskell projects.
cabal-debian library, program and test: Create a Debianization for a Cabal package
cabal-dependency-licenses program: Compose a list of a project's transitive dependencies with their licenses
cabal-dir program: show dist dir of 'cabal copy/install'
cabal-doctest library: A Setup.hs helper for doctests running
cabal-file library and program: Cabal file access
cabal-flatpak program: Generate a FlatPak manifest from a Cabal package description
cabal-helper library, program and tests: Give Haskell development tools access to Cabal project environment
Cabal-ide-backend library and tests: A framework for packaging Haskell software
cabal-install program: The command-line interface for Cabal and Hackage.
cabal-install-bundle program: The (bundled) command-line interface for Cabal and Hackage.
cabal-install-ghc72 program: Temporary version of cabal-install for ghc-7.2
cabal-install-ghc74 program: Temporary version of cabal-install for ghc-7.4
cabal-macosx library, program and test: Cabal support for creating Mac OSX application bundles.
cabal-nirvana programs: Avoid Cabal dependency hell by constraining to known good versions. (deprecated)
cabal-progdeps program: Show dependencies of program being built in current directory
cabal-rpm program: RPM packaging tool for Haskell Cabal-based packages
cabal-setup program: The user interface for building and installing Cabal packages
cabal-sort programs: Topologically sort cabal packages
cabal-src programs: Alternative install procedure to avoid the diamond dependency issue.
cabal-toolkit library: Helper functions for writing custom Setup.hs scripts.
cabal-uninstall program: Uninstall cabal packages
cabal-upload program: Command-line tool for uploading packages to Hackage
cabal2arch program: Create Arch Linux packages from Cabal packages.
cabal2doap program: Cabal to Description-of-a-Project (DOAP)
cabal2ebuild library and programs: make gentoo's .ebuild file from .cabal file
cabal2nix library, programs and test: Convert Cabal files into Nix build instructions.
cabal2spec library, program and test: Convert Cabal files into rpm spec files
cabalgraph program: Generate pretty graphs of module trees from cabal files
cabalmdvrpm library and program: Create mandriva rpm from cabal package
cabalrpmdeps library and programs: Autogenerate rpm dependencies from cabal files
cabalvchk program: Verify installed package version against user-specified constraints.
cabin program: Cabal binary sandboxes.
capri program: A simple wrapper over cabal-install to operate in project-private mode.
cartel library, programs and test: Specify Cabal files in Haskell
cblrepo program: Tool to maintain a database of CABAL packages and their dependencies
check-pvp programs: Check whether module and package imports conform to the PVP
chs-cabal library: Cabal with c2hs dependencies
codec-rpm library and test: A library for manipulating RPM files
darcs-graph program: Generate graphs of darcs repository activity
darcs-monitor program: Darcs repository monitor (sends email)
darcsden programs: Darcs repository UI and hosting/collaboration app (hub.darcs.net branch).
darcswatch programs: Track application of Darcs patches
delude library: Generalized the Prelude more functionally.
depends program and test: A simple configuration management tool for Haskell
dhall-to-cabal library, programs and tests: Compile Dhall expressions to Cabal files
diffcabal program: Diff two .cabal files syntactically
dist-upload library and program: Generate/Upload cabal package to Hackage.
distribution-nixpkgs library and test: Types and functions to manipulate the Nixpkgs distribution
distribution-opensuse library, program and test: Types, functions, and tools to manipulate the openSUSE distribution
dynamic-cabal library and tests: Access the functions from the Cabal library without depending on it
ekg-json library: JSON encoding of ekg metrics
executor library and tests: Shell helpers
exherbo-cabal library, program and test: Exheres generator for cabal packages
fbrnch library and program: Build and create Fedora package repos and branches
fedora-dists library: Library for Fedora distribution versions
fedora-haskell-tools programs: Building and maintenance tools for Fedora Haskell
franchise library: A package for configuring and building Haskell software
fsh-csv library: csv parser for fsh
gdo program: recursive atomic build system
hackage-api library and test: An API binding to Hackage API
hackage-db library and programs: Access cabal-install's Hackage database via Data.Map
hackage-diff program: Compare the public API of different versions of a Hackage library
hackage-mirror library and program: Simple mirroring utility for Hackage
hackage-plot program: Generate cumulative graphs of hackage uploads
hackage-processing program: Process 00-index.tar.gz from Hackage
hackage-repo-tool program: Manage secure file-based package repositories
hackage-security library and test: Hackage security library
hackage-security-HTTP library: Hackage security bindings against the HTTP library
hackage-server programs and tests: The Hackage web server
hackage-sparks program: Generate sparkline graphs of hackage statistics
hackage-whatsnew program: Check for differences between working directory and hackage
hackage2hwn program: Convert Hackage RSS feeds to wiki format for publishing on Haskell.org
hackage2twitter program: Send new Hackage releases to Twitter
hackport program and tests: Hackage and Portage integration tool
haddocset program: Generate docset of Dash by Haddock haskell documentation tool
haskell-overridez program: Manage nix overrides for haskell packages
haskell-packages library: Haskell suite library for package management and integration with Cabal
haskell-platform-test program: A test system for the Haskell Platform environment
haskell-updater program: Rebuild Haskell dependencies in Gentoo
hellage programs: Distributed hackage mirror
hi library, program and tests: Generate scaffold for cabal project
highlight-versions program: Highlight package versions which differ from the latest version on Hackage
hmk library and program: A make alternative based on Plan9's mk.
hslackbuilder program: HSlackBuilder automatically generates slackBuild scripts from a cabal package
hub program: For multiplexing GHC installations and providing development sandboxes
hup library, program and tests: Upload packages or documentation to a hackage server
i3blocks-hs-contrib library and programs: Base i3blocks written in haskell
jailbreak-cabal program: Strip version restrictions from Cabal files
kif-parser program: Process KIF iOS test logs
language-nix library: Data types and functions to represent the Nix language
licensor library and program: A license compatibility helper
lscabal program: List exported modules from a set of .cabal files
mega-sdist program: Handles uploading to Hackage from mega repos
mkbndl program: Makes an OS X .app bundle from a binary.
mkcabal program: Generate cabal files for a Haskell project
nix-paths library: Knowledge of Nix's installation directories.
nix-tools library and programs: cabal/stack to nix translation tools
nixos-types library: this package is obsolete; see cabal2nix instead
packdeps library and program: Check your cabal packages for lagging dependencies.
packunused program: Tool for detecting redundant Cabal package dependencies
populate-setup-exe-cache library: Empty Cabal package
precis library and program: Diff Cabal packages.
redo program: software build system, make replacement, implementation of djb's redo
rpmbuild-order library, program and test: Order RPM packages by dependencies
rts-loader library and programs: Dynamically load Haskell libraries
salve library and test: Semantic version numbers and constraints.
self-extract library and program: A Haskell library to make self-extracting executables
simple-cabal library: Cabal file wrapper library
stack-all program: CLI tool for building across Stackage major versions
stack-clean-old program: Clean away old stack build artefacts
stack-yaml library and test: Parse a stack.yaml file
stack2nix library, program and test: Convert stack.yaml files into Nix build instructions.
stackage-build-plan library and program: Calculate and print (in different formats) Stackage build plans
stackage-curator library, programs and test: Tools for curating Stackage bundles
stackage-install library and program: Secure download of packages for cabal-install
stackage-metadata library and program: DEPRECATED Grab current metadata for all packages
stackage-query program: Tool for querying Stackage
stackage-update library and program: Update your package index incrementally (requires git)
stackage-upload library and program: A more secure version of cabal upload which uses HTTPS
stackage2nix library, program and test: Convert Stack files into Nix build instructions.
standalone-haddock program: Generate standalone haddock documentation for a set of packages
superdoc library: Additional documentation markup and Unicode support
uusi library, programs and test: Tweak .cabal files
vabal program and test: the cabal companion
vabal-lib library and test: Core algorithms and datatypes used by vabal
yackage programs: Personal Hackage replacement for testing new packages.
yarn2nix library, programs and test: Convert yarn.lock files to nix expressions
zoom library and program: A rake/thor-like task runner written in Haskell

DNS

dprox program and test: a lightweight DNS proxy server
haeredes program and tests: Confirm delegation of NS and MX records.

Documentation

acme-operators library: Operators of base, all in one place!
activehs program: Haskell code presentation tool
activehs-base library: Basic definitions for activehs
archiver library and program: Archive supplied URLs in WebCite & Internet Archive
dash-haskell program: Convert package Haddock to Dash docsets (IDE docs)
doccheck program: Checks Haddock comments for pitfalls and version changes.
docidx program: Generate an HTML index of installed Haskell packages and their documentation.
Docs library: Documentation types library.
docstrings library: Docstrings for documentation in the repl
embeddock library and program: Embed the values in scope in the haddock documentation of the module
embeddock-example library: Example of using embeddock.
haddock program and tests: A documentation-generation tool for Haskell libraries
haddock-api library and test: A documentation-generation tool for Haskell libraries
haddock-cheatsheet library: A documentation-only package exemplifying haddock markup features
haddock-library library and tests: Library exposing some functionality of Haddock.
haddock-test library: Test utilities for Haddock
hoogle-index program: Easily generate Hoogle indices for installed packages
hup library, program and tests: Upload packages or documentation to a hackage server
hyakko program: Literate-style Documentation Generator
pandoc-emphasize-code library, program and test: A Pandoc filter for emphasizing code in fenced blocks
pandoc-include-code library, program and test: A Pandoc filter for including code from source files
pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.
pandoc-pyplot library, program and test: A Pandoc filter to include figures generated from Python code blocks
parochial library and program: Help Manage project specific documentation
snm library and program: The Simple Nice-Looking Manual Generator.
tintin library, program and test: A softer alternative to Haddock

Download Manager

manatee-curl library and program: Download Manager extension for Manatee.
manatee-terminal library and program: Terminal Emulator extension for Manatee.

DSL

control-dsl library and test: An alternative to monads in do-notation
DeepDarkFantasy library and tests: A DSL for creating neural network.
do-notation-dsl library and test: An alternative to monads
lazyboy library and test: An EDSL for programming the Game Boy.
portager library and test: DSL for configuring Gentoo portage
sixty-five-oh-two library and test: An eDSL for writing 65(C)02 bytecode.
souffle-dsl library and test: Haskell EDSL for Souffle
TransformeR library, program and test: eDSL in R for Safe Variable Transformarion

EBNF

ebnf-bff library and program: Parser combinators & EBNF, BFFs!

Eden

edenmodules library: Semi-explicit parallel programming library
edentv program: A Tool to Visualize Parallel Functional Program Executions
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC

Editing

ige program: An keyboard-driven interactive graph editor

Editor

cursor library: Purely Functional Cursors
editpipe program: Edit stdin using an editor before sending to stdout.
fix-imports program and test: Program to manage the imports of a haskell module
haskelisp library: Write Emacs module in Haskell, using Emacs 25's Dynamic Module feature
Hedi library and program: Line oriented editor
hpage program: A scrapbook for Haskell developers
Hsed library and program: Stream Editor in Haskell
leksah library and program: Haskell IDE written in Haskell
manatee-editor library and program: Editor extension for Manatee.
module-management library, program and test: Clean up module imports, split and merge modules
nvim-hs library and test: Haskell plugin backend for neovim
nvim-hs-contrib library and test: Haskell plugin backend for neovim
nvim-hs-ghcid library and program: Neovim plugin that runs ghcid to update the quickfix list
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell
yavie library and program: yet another visual editor
yi-contrib library: Add-ons to Yi, the Haskell-Scriptable Editor
yi-gtk library: The Haskell-Scriptable Editor, helper package
yi-monokai library: Monokai colour theme for the Yi text editor
yi-solarized library: Solarized colour theme for the Yi text editor
yi-spolsky library: Spolsky colour theme for the Yi text editor
yi-vty library: The Haskell-Scriptable Editor, helper package

Education

activehs program: Haskell code presentation tool
activehs-base library: Basic definitions for activehs
Advise-me library and programs: Assessment services for the Advise-Me project
clanki program: Command-line spaced-repetition software
Craft3e library and programs: Code for Haskell: the Craft of Functional Programming, 3rd ed.
crypto-enigma library, program and tests: An Enigma machine simulator with display.
dia-base library: An EDSL for teaching Haskell with diagrams - data types
dia-functions library: An EDSL for teaching Haskell with diagrams - functions
hscurses-fish-ex program: hscurses swimming fish example
I1M library and test: Code for the Haskell course taught at the University of Seville.
ideas library: Feedback services for intelligent tutoring systems
ideas-math program: Interactive domain reasoner for logic and mathematics
ideas-math-types library: Common types for mathematical domain reasoners
ideas-statistics program: Interactive domain reasoner for statistics
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
io-machine library and test: Easy I/O model to learn IO monad
lambda-canvas library: Educational drawing canvas for FP explorers.
memscript program: Command line utility for memorizing scriptures or any other text
onu-course library: Code for the Haskell course taught at the Odessa National University in 2012
producer library and test: Simple streaming datatype
pure-io library: Pure IO monad.
risc386 program: Reduced instruction set i386 simulator
smartword programs: Web based flash card for Word Smart I and II vocabularies
SoccerFun library and program: Football simulation framework for teaching functional programming
SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
TicTacToe library: A sub-project (exercise) for a functional programming course
turing library and tests: A simple simulator for Turing machines
twentefp library: Lab Assignments Environment at Univeriteit Twente
twentefp-eventloop-graphics library: Used as Lab Assignments Environment at the University of Twente
twentefp-graphs library: Lab Assignments Environment at Univeriteit Twente
twentefp-number library: Lab Assignments Environment at Univeriteit Twente
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell

Educational

MBot library: Haskell interface for controlling the mBot educational robot
typerbole library and test: A typesystems library with exaggerated claims

Effect

control-dsl library and test: An alternative to monads in do-notation
cprng-aes-effect library: Run random effect using cprng-aes, a crypto pseudo number generator.
crypto-random-effect library: A random effect using crypto-random
do-notation-dsl library and test: An alternative to monads
effin library: A Typeable-free implementation of extensible effects
eveff library: Efficient effect handlers based on evidence translation.
extensible-effects library, test and benchmark: An Alternative to Monad Transformers
extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
free-er library and program: An extensible effects library
log-effect library and program: An extensible log effect using extensible-effects
log-effect-syslog library: Syslog functions for log-effect
mysql-effect library: An extensible mysql effect using extensible-effects and mysql-simple
random-eff library: A simple random generator library for extensible-effects
random-effin library: A simple random generator library for effin
resource-effect library and test: A port of the package 'resourcet' for extensible effects.
system-random-effect library, test and benchmark: Random number generation for extensible effects.
THEff library: TH implementation of effects.

Effects

co-log-polysemy program: Composable Contravariant Comonadic Logging Library
freer-indexed library: Freer indexed monad for type-level resource-aware effectual operations.
trans-fx-core library: Monadic effect framework
trans-fx-data library: Monadic effect framework
trans-fx-io library and test: Monadic effect framework

Elm

elm-street library, programs and test: Crossing the road between Haskell and Elm
elm-syntax library and test: Elm syntax and pretty-printing
elminator library and test: Generate ELM types/encoders/decoders from Haskell types.
haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs

Emacs

haskelisp library: Write Emacs module in Haskell, using Emacs 25's Dynamic Module feature

Email

attomail program and test: Minimal mail delivery agent (MDA) for local mail with maildir support
carboncopy program: Drop emails from threads being watched into special CC folder.
email-postmark library: ...
mail-pool library and program: Preconfigured email connection pool on top of smtp.
mailgun library: API binding for Mailgun
mbox-tools programs: A collection of tools to process mbox files
mime-mail library and test: Compose MIME email messages.
newsletter library and program: A basic newsletter implimentation, using various backends.
newsletter-mailgun library: A mailgun backend for the newsletter package.
notmuch-haskell library and program: Binding for notmuch MUA library
purebred-email library, program and test: types and parser for email messages (including MIME)
ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
ses-html-snaplet library: Snaplet for the ses-html package
snaplet-ses-html library: Snaplet for the ses-html package

Embedded

arduino-copilot library and test: Arduino programming in haskell using the Copilot stream DSL
atom library: An EDSL for embedded hard realtime applications.
atom-msp430 library: Convenience functions for using Atom with the MSP430 microcontroller family.
CarneadesDSL library: An implementation and DSL for the Carneades argumentation model.
CarneadesIntoDung library and program: A translation from the Carneades argumentation model into Dung's AFs.
copilot library and programs: A stream DSL for writing embedded C programs.
copilot-c99 library and test: A compiler for Copilot targeting C99.
copilot-cbmc library: Copilot interface to a C model-checker.
copilot-core library: An intermediate representation for Copilot.
copilot-language library: A Haskell-embedded DSL for monitoring hard real-time distributed systems.
copilot-libraries library: Libraries for the Copilot language.
copilot-sbv library: A compiler for CoPilot targeting SBV.
copilot-theorem library: k-induction for Copilot.
Dung library and program: An implementation of the Dung argumentation frameworks.
ecu programs: Tools for automotive ECU development.
fault-tree library: A fault tree analysis library.
ImperativeHaskell library: A library for writing Imperative style haskell.
improve library: An imperative, verifiable programming language for high assurance applications.
ion library and program: EDSL for concurrent, realtime, embedded programming on top of Ivory
perfect-hash-generator library, programs and test: Perfect minimal hashing implementation in native Haskell
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
srec library: Parsing and processing s-records.
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities
vcd library: Reading and writing VCD files.
verilog library: Verilog preprocessor, parser, and AST.

Enumerator

attoparsec-enumerator library: Pass input from an enumerator to an Attoparsec parser.
attoparsec-text-enumerator library: (deprecated)
blaze-builder-enumerator library: Enumeratees for the incremental conversion of builders to bytestrings.
ChannelT library: Generalized stream processors
coroutine-enumerator library: Bridge between the monad-coroutine and enumerator packages.
enumerator library: Reliable, high-performance processing with left-fold enumerators
enumerator-fd library: Enumerator instances for monads-fd classes
enumerator-tf library: Enumerator instances for monads-tf classes
expat-enumerator library: Enumerator-based API for Expat
filesystem-enumerator library: Enumerator-based API for manipulating the filesystem.
folds library: Beautiful Folding
http-enumerator library and program: HTTP client package with enumerator interface and HTTPS support. (deprecated)
iterIO library: Iteratee-based IO with pipe operators
iterio-server library: Library for building servers with IterIO
json-enumerator library: Pure-Haskell utilities for dealing with JSON with the enumerator package. (deprecated)
libxml-enumerator library: Enumerator-based API for libXML's SAX interface
lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
machines library and benchmark: Networked stream transducers
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-encoding library: Transcode encodings with machines.
netstring-enumerator library: Enumerator-based netstring parsing
network-enumerator library: Enumerators for network sockets
pcap-enumerator library: Convert a pcap into an enumerator.
pipes-conduit library: Conduit adapters
pipes-core library: Compositional pipelines
pipes-extra library, programs, test and benchmarks: Various basic utilities for Pipes.
servant-conduit library and test: Servant Stream support for conduit.
servant-machines library and test: Servant Stream support for machines
twitter-enumerator library: Twitter API package with enumerator interface and Streaming API support.
xml-enumerator library and test: Pure-Haskell utilities for dealing with XML with the enumerator package. (deprecated)
xml-enumerator-combinators library and program: Parser combinators for xml-enumerator and compatible XML parsers.
yajl-enumerator library: Enumerator-based interface to YAJL, an event-based JSON implementation
zlib-enum program: Enumerator interface for zlib compression

Envars

rfc-env library: Environment variable support from the Robert Fischer Commons.

Environment

SWMMoutGetMB library: A parser for SWMM 5 binary .OUT files

Error Handling

async-io-either library: Could be useful
bug library: Better alternatives to the "error" function
Dangerous library: Monads for operations that can exit early and produce warnings
error-context library and test: Provides API for enriching errors with contexts
error-message library: Composable error messages.
error-util library: Set of utils and operators for error handling
errors library: Simplified error-handling
errors-ext library and test: `bracket`-like functions for `ExceptT` over `IO` monad.
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
failable-list library: A list-like type for lazy streams, which might terminate with an error.
partial-handler library: A composable exception handler
pipes-errors library: Integration between pipes and errors
pipes-safe library: Safety for the pipes ecosystem
postgresql-error-codes library: PostgreSQL error codes
pretty-error library: Pretty error messages for runtime invariants
prim-spoon library, test and benchmark: Catch errors thrown from pure computations using primops.
rescue library, tests and benchmark: More understandable exceptions
resumable-exceptions library: A monad transformer for resumable exceptions
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
spoon library: Catch errors thrown from pure computations.
spork library: Catch errors from pure computations in a Maybe/Either
tagged-exception-core library: Reflect exceptions using phantom types.

Eternity

eternity-timestamped library: Automatic timestamping for Eternity

Ethereum

ethereum-analyzer library and test: A Ethereum contract analyzer.
ethereum-analyzer-cli library and programs: A CLI frontend for ethereum-analyzer.
ethereum-analyzer-deps library: Stripped dependencies of ethereum-analyzer.
ethereum-analyzer-webui library and program: A web frontend for ethereum-analyzer
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
hevm library, program and test: Ethereum virtual machine evaluator

ETL

DBFunctor library, program and test: DBFunctor - Functional Data Management => ETL/ELT Data Processing in Haskell

Eval.so

cruncher-types library and test: Request and Response types for Eval.so's API

Event-sourcing

eternity-timestamped library: Automatic timestamping for Eternity

Eventloop

eventloop library: A different take on an IO system. Based on Amanda's IO loop, ...

Eventsourcing

eternity library and test: Native event-sourcing database
eventful-core library and test: Core module for eventful
eventful-dynamodb library and test: Library for eventful DynamoDB event stores
eventful-memory library and test: In-memory implementations for eventful
eventful-postgresql library and test: Postgres implementations for eventful
eventful-sql-common library: Common library for SQL event stores
eventful-sqlite library and test: SQLite implementations for eventful
eventful-test-helpers library: Common module used for eventful tests
eventsource-api library: Provides an eventsourcing high level API.
eventsource-geteventstore-store library and test: GetEventStore store implementation.
eventsource-store-specs library: Provides common test specification for Store implementation.
eventsource-stub-store library and test: An in-memory stub store implementation.

Example

example-haskell-project library and program: Example Haskell Project
huttons-razor program: Quick implemention of Hutton's Razor

Exception

throwable-exceptions library and test: throwable-exceptions gives the easy way to throw exceptions
util-exception library: Exceptional utilities

Exceptions

eio library and program: IO with Exceptions tracked on the type-level
exceptions library and test: Extensible optionally-pure exceptions
failable library: A 'Failable' error monad class to unify failure across monads that can fail
partial-handler library: A composable exception handler
patrol library: Sentry SDK
ratel library and test: Notify Honeybadger about exceptions.
ratel-wai library: Notify Honeybadger about exceptions via a WAI middleware.
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
tagged-exception-core library: Reflect exceptions using phantom types.

Executable

postgrest library, program and tests: REST API for any Postgres database
rasa library and test: A modular text editor

Experiment

experimenter library and test: Perform scientific experiments stored in a DB, and generate reports.
laborantin-hs library and program: an experiment management framework

Experimental

polysemy-resume library and test: Polysemy error tracking
Quelea library: Programming with Eventual Consistency over Cassandra.
ZipperAG library: An implementationg of Attribute Grammars using Functional Zippers

Extension

rasa-ext-bufs library: Rasa Ext for useful buffer utilities
rasa-ext-cmd library: Rasa Ext for running commands
rasa-ext-cursors library: Rasa Ext adding cursor(s)
rasa-ext-files library: Rasa Ext for filesystem actions
rasa-ext-logger library: Rasa Ext for logging state/actions
rasa-ext-slate library: Rasa extension for rendering to terminal with vty
rasa-ext-status-bar library: Rasa Ext for populating status-bar
rasa-ext-style library: Rasa Ext managing rendering styles
rasa-ext-views library: Rasa Ext managing rendering views
rasa-ext-vim library and test: Rasa Ext for vim bindings

Faas

micro-gateway library and program: A Micro service gateway.

Factory

boots library and test: IoC Monad in Haskell

Factual

Facts library: A collection of facts about the real world.
wedding-announcement program: a wedding announcement

Failure

attempt library: Concrete data type for handling extensible exceptions as failures. (deprecated)
control-monad-attempt library: Monad transformer for attempt. (deprecated)
control-monad-exception library: Explicitly typed, checked exceptions with stack traces
control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
control-monad-failure library: A class for monads which can fail with an error. (deprecated)
control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
convertible-ascii library: convertible instances for ascii
convertible-text program: Typeclasses and instances for converting between types (deprecated)
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
failure library: A simple type class for success/failure computations. (deprecated)
FailureT library: Failure Monad Transformer
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
partial-handler library: A composable exception handler
resumable-exceptions library: A monad transformer for resumable exceptions
safe-failure library: Library for safe functions (deprecated)
safe-failure-cme library: control-monad-exception Instances for safe-failure
slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
success library: A version of Either specialised for encoding of success or failure
tagged-exception-core library: Reflect exceptions using phantom types.

Fake

fakedata library, test and benchmark: Library for producing fake data
fakedata-quickcheck library and test: Fake a -> Gen a

FakeData

fakedata library, test and benchmark: Library for producing fake data
fakedata-quickcheck library and test: Fake a -> Gen a

Fay

fay library and programs: A compiler for Fay, a Haskell subset that compiles to JavaScript.
fay-base library: The base package for Fay.
fay-dom library: DOM FFI wrapper library for Fay
fay-jquery library: jQuery bindings for Fay.
fay-ref library: Like IORef but for Fay.
fay-simplejson library: SimpleJSON library for Fay.
fay-text library: Fay Text type represented as JavaScript strings
fay-websockets library: Websockets FFI library for Fay
scotty-fay library and test: Fay integration for Scotty.
snaplet-fay library: Fay integration for Snap with request- and pre-compilation.

FCM

fcm-client library, program and test: Admin API for Firebase Cloud Messaging

Fedora

copr library and test: Haskell interface to the Fedora Copr system
fedora-packages library and tests: Haskell interface to the Fedora Packages webapp API.
mdapi library: Haskell interface to Fedora's mdapi

Feed

manatee-reader library and program: Feed reader extension for Manatee.

FFI

bindings library: Deprecated package.
bindings-apr library: Low level bindings to Apache Portable Runtime (APR)
bindings-apr-util library: Low level bindings to Apache Portable Runtime Utility (APR Utility)
bindings-audiofile library: Low level bindings to audiofile
bindings-bfd library: Bindings for libbfd, a library of the GNU `binutils'
bindings-cctools library: Bindings to the CCTools WorkQueue C library
bindings-codec2 library and program: Very low-level FFI bindings for Codec2
bindings-common library: This package is obsolete. Look for bindings-DSL instead.
bindings-directfb library: Low level bindings to DirectFB
bindings-DSL library: FFI domain specific language, on top of hsc2hs.
bindings-eskit library: Bindings to ESKit.
bindings-EsounD library: Low level bindings to EsounD (ESD; Enlightened Sound Daemon)
bindings-fann library: Low level bindings to FANN neural network library.
bindings-friso library: Low level bindings for friso
bindings-glib library: Low level bindings to GLib.
bindings-gobject library: Low level bindings supporting GObject and derived libraries.
bindings-gpgme library: Project bindings-* raw interface to gpgme
bindings-gsl library: Low level bindings to GNU GSL.
bindings-gts library: Low level bindings supporting GTS, the GNU Triangulated Surface Library
bindings-hamlib library and program: Hamlib bindings for Haskell
bindings-hdf5 library: Project bindings-* raw interface to HDF5 library
bindings-K8055 library: Bindings to Velleman K8055 dll
bindings-levmar library: Low level bindings to the C levmar (Levenberg-Marquardt) library
bindings-libcddb library: Low level binding to libcddb.
bindings-libffi library: Low level bindings to libffi.
bindings-libftdi library: Low level bindings to libftdi.
bindings-libpci library: Low level bindings to libpci
bindings-librrd library: Low level bindings to RRDtool
bindings-libstemmer library: Binding for libstemmer with low level binding.
bindings-libusb library: Low level bindings to libusb.
bindings-libzip library: Low level bindings to libzip.
bindings-lxc library: Direct Haskell bindings to LXC (Linux containers) C API.
bindings-parport library: parport bindings
bindings-posix library: Project bindings-* raw interface to Posix
bindings-ppdev library: PPDev bindings
bindings-sane library: FFI bindings to libsane
bindings-sc3 library: Low-level bindings to the SuperCollider synthesis engine library.
bindings-sqlite3 library: Low level bindings to sqlite3.
bindings-svm library: Low level bindings to libsvm.
bindings-uname library: Low-level binding to POSIX uname(3)
bindings-wlc library and test: Bindings against the wlc library
bindings-yices library: Bindings to the Yices theorem prover
cef3-raw library: Raw CEF3 bindings
cef3-simple library: Simple wrapper around cef3-raw
clingo library and programs: Haskell bindings to the Clingo ASP solver
clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
com : Haskell COM support library
const library: Read-only mutable primitives
crc32c library and test: Haskell bindings for crc32c
curryrs library, test and benchmark: Easy to use FFI Bridge for using Rust in Haskell
fast-arithmetic library, test and benchmark: Fast functions on integers.
fixed-storable-array library: Fixed-size wrapper for StorableArray, ...
foreign-var library: Encapsulating mutatable state in external libraries
fresco-binding library: Fresco binding for Haskell
ghc-byteorder library and test: "GHC.ByteOrder" API Compatibility Layer
gitlib library: API library for working with Git repositories
gitlib-cross library and test: Run tests between repositories
gitlib-libgit2 library and test: Libgit2 backend for gitlib
gitlib-sample library: Sample backend for gitlib showing the basic structure for any backend.
gitlib-test library: Test library for confirming gitlib backend compliance
gitlib-utils library: Generic utility functions for working with Git repositories
gmpint library: GMP integer conversions
H program: The Haskell/R mixed programming environment.
haroonga library: Low level bindings for Groonga.
haskell-mpi library and programs: Distributed parallel programming in Haskell using MPI.
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hcom : Haskell COM support library
heatshrink library and test: Compression and decompression using heatshrink
henet library: Bindings and high level interface for to ENet v1.3.9
hlibBladeRF library and test: Haskell binding to libBladeRF SDR library
hlibgit2 library and test: Low-level bindings to libgit2
hmatrix-gsl-stats library: GSL Statistics interface
hocilib library and test: FFI binding to OCILIB
inline-asm library, program and test: Inline some Assembly in ur Haskell!
inline-c library, program and test: Write Haskell source files including C code inline. No FFI required.
inline-c-cpp library and test: Lets you embed C++ code into Haskell.
inline-c-win32 library: Win32 API Context for the inline-c library
inline-java library, test and benchmark: Java interop via inline Java code in Haskell modules.
inline-r library, tests and benchmarks: Seamlessly call R from Haskell and vice versa. No FFI required.
IrrHaskell library: Haskell FRP binding to the Irrlicht game engine.
j library and test: J in Haskell
jarify library and program: Jarification of Haskell sources
jni library and test: Complete JNI raw bindings.
jvm library, test and benchmark: Call JVM methods from Haskell.
jvm-batching library, test and benchmark: Provides batched marshalling of values between Java and Haskell.
jvm-streaming library, test and benchmark: Expose Java iterators as streams from the streaming package.
leveldb-haskell library, programs and test: Haskell bindings to LevelDB
leveldb-haskell-fork library, programs and test: Haskell bindings to LevelDB
libpafe library and tests: Wrapper for libpafe
libversion library: Haskell binding to libversion
libxls library: Bindings to libxls
linux-file-extents library and program: Retrieve file fragmentation information under Linux
lz4-hs library, test and benchmarks: lz4 bindings for Haskell
missing-foreign library: Convenience functions for FFI work
modulo library and program: Modular C code generator
MusicBrainz-libdiscid library: Binding to libdiscid by MusicBrainz
nitro library: Haskell bindings for Nitro
notmuch library and programs: Haskell binding to Notmuch, the mail indexer
odpic-raw library and test: Oracle Database Bindings
OpenCL library and test: Haskell high-level wrapper for OpenCL
OpenCLWrappers library: The OpenCL Standard for heterogenous data-parallel computing
Pathfinder library: Relational optimiser and code generator
pthread library and test: Bindings for the pthread library.
ptrdiff library: Type-checked pointer diffs
rocksdb-haskell library and test: Haskell bindings to RocksDB
rocksdb-haskell-jprupp library and test: Haskell bindings for RocksDB
sc2-lowlevel library: Low-level Starcraft II API
sc2-support library: Support and utility library for sc2hs.
sc2hs library and program: An interface to the Starcraft II bot API
sednaDBXML library: Sedna C API XML Binding
smawk library: Linear time row minima for totally monotone matrices
sparkle library and program: Distributed Apache Spark applications in Haskell
statgrab library: Collect system level metrics and statistics
storable-static-array library: Statically-sized array wrappers with Storable instances for FFI marshaling
symengine library and test: SymEngine symbolic mathematics engine for Haskell
symengine-hs library, program and test: SymEngine symbolic mathematics engine for Haskell
sysinfo library and test: Haskell Interface for getting overall system statistics
ViennaRNA-bindings library and test: ViennaRNA v2 bindings
wilton-ffi library: Haskell modules support for Wilton JavaScript runtime
workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings
zbar library: zbar bindings in Haskell
zeromq-haskell library and test: Bindings to ZeroMQ 2.1.x
zeromq3-haskell library and test: Bindings to ZeroMQ 3.x
zeromq4-haskell library and test: Bindings to ZeroMQ 4.x
zeromq4-simple library: More constrained extensions to zeromq4-haskell

FFI Tools

fficxx library: automatic C++ binding generation
fficxx-runtime library: Runtime for fficxx-generated library
futhask library and program: Generate Haskell wrappers for Futhark libraries
hacanon-light library: Template Haskell framework for automatic FFI code generation.
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
HSFFIG library and programs: Generate FFI import declarations from C include files
j2hs program: j2hs
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.

File

binary-file library: read/write binary file
downloader library: A small, low-dependency library that provides turn-key file download over HTTP and HTTPS.
foscam-directory library and test: Foscam File format
foscam-filename library and test: Foscam File format
foscam-sort library, program and test: Foscam File format
hash-store library: Hash as cache
png-file library: read/write png file

File Manager

bogocopy program: Copy a directory tree, making zero-size sparse copies of big files.
manatee-filemanager library and program: File manager extension for Manatee.
RollingDirectory program and test: Limits the size of a directory's contents

FilePath

filepattern library and test: File path glob-like matching

Filesystem

btrfs library and programs: Bindings to the btrfs API
conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
definitive-filesystem library: A library that enable you to interact with the filesystem in a definitive way.
disk-free-space library: Retrieve information about disk space usage
fileneglect library: Block thread until a file stops being modified
follow-file library and program: Be notified when a file gets appended, ...
fsnotify library and test: Cross platform library for file change notification.
fswatch library and program: File System watching tool with cli and slave functionalities.
hpath : Support for well-typed paths
hpath-directory test: Alternative to 'directory' package with ByteString based filepaths
hpath-filepath : ByteString based filepath manipulation
hpath-io : High-level IO operations on files/directories
hpath-posix : Some low-level POSIX glue code, that is not in 'unix'
HsOpenSSL-x509-system library: Use the system's native CA certificate store with HsOpenSSL
linux-file-extents library and program: Retrieve file fragmentation information under Linux
partly library, program and tests: Inspect, create, and alter MBRs.
path library and tests: Support for well-typed paths
path-binary-instance library: Binary instance for Path.
path-dhall-instance library: ToDhall and FromDhall instances for Path.
path-extensions library: Enumeration of common filetype extensions for use with the path library.
path-extra library and test: URLs without host information
path-io library and test: Interface to ‘directory’ package for users of ‘path’
path-like library: PathLike, FileLike and DirLike type classes for the Path library.
path-text-utf8 library: Read and write UTF-8 text files
path-utils library: Handful of simple utility functions for the path library.
plan-b library and test: Failure-tolerant file and directory editing
shikensu library and test: Run a sequence of functions on in-memory representations of files
unix-recursive library, programs, test and benchmark: Fast and flexible primitives for recursive file system IO on Posix systems
within library: A value within another path.

Filter

pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.

Finance

ally-invest library and test: Ally Invest integration library
bgmax library: Parse BgMax-files
bitcoin-api library and test: Provides access to the RPC API of Bitcoin Core
bitcoin-api-extra library and test: Higher level constructs on top of the bitcoin-api package
bitcoin-block library and test: Utility functions for manipulating bitcoin blocks
bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
bitcoin-script library and test: Compilation, manipulation and decompilation of Bitcoin scripts
bitcoin-tx library and test: Utility functions for manipulating bitcoin transactions
bitcoin-types library and test: Provides consistent low-level types used commonly among Bitcoin implementations
bitx-bitcoin library and tests: A Haskell library for working with the BitX bitcoin exchange.
buchhaltung library and program: Automates most of your plain text accounting data entry in ledger format.
coinbase-pro library and programs: Client for Coinbase Pro
commodities library and tests: Library for working with commoditized amounts and price histories
cryptoconditions library and test: Interledger Crypto-Conditions
dollaridoos library: A newtype for monetary values
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
eurofxref library: Free foreign exchange/currency feed from the European Central Bank
forex2ledger library, program and test: Print Forex quotes in Ledger format
haskoin library and test: Implementation of the Bitcoin protocol.
haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
haskoin-store-data library and test: Data for Haskoin Store
haskoin-util library and test: Utility functions for the Network.Haskoin project
haskoin-wallet library, programs and test: Implementation of a Bitcoin SPV Wallet with BIP32 and multisig support.
haslo library and programs: Loan calculator engine.
hax library and program: Haskell cash-flow and tax simulation
hledger library, program, test and benchmark: Command-line interface for the hledger accounting system
hledger-api program: Web API server for the hledger accounting tool
hledger-chart program: A pie chart image generator for the hledger accounting tool.
hledger-diff program: Compares the transactions in two ledger files.
hledger-flow library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-iadd library, program and test: A terminal UI as drop-in replacement for hledger add
hledger-interest program: computes interest for a given account
hledger-irr program: computes the internal rate of return of an investment
hledger-lib library and tests: A reusable library providing the core functionality of hledger
hledger-makeitso library, program and test: An hledger workflow focusing on automated statement import and classification.
hledger-stockquotes library, program and test: Generate HLedger Price Directives From Daily Stock Quotes.
hledger-ui program: Curses-style terminal interface for the hledger accounting system
hledger-vty program: A curses-style console interface for the hledger accounting tool.
hledger-web library, program and test: Web-based user interface for the hledger accounting system
hquantlib library, program and test: HQuantLib is a port of essencial parts of QuantLib to Haskell
hquantlib-time library: HQuantLib Time is a business calendar functions extracted from HQuantLib
hstradeking library and program: Tradeking API bindings for Haskell
iban library and test: Validate and generate IBANs
lendingclub library: Bindings for the LendingClub marketplace API
money library and test: Money
netrium library and programs: Contract normaliser and simulator
ofx library and programs: Parser for OFX data
open-symbology library
penny library, programs and test: Extensible double-entry accounting system
penny-bin programs: Deprecated - use penny package instead
penny-lib programs: Deprecated - use penny package instead
pgstream library: Streaming Postgres bindings
prosper library: Bindings to the Prosper marketplace API
qif library and test: A simple QIF file format parser / printer
quantfin library and program: Quant finance library in pure Haskell.
rabocsv2qif library and program: A library and program to create QIF files from Rabobank CSV exports.
tax library: Types and combinators for taxes
tsparse library and programs: Parses U.S. federal Thrift Savings Plan PDF quarterly statements
UMM program: A small command-line accounting tool

Finance Network Bitcoin

rbpcp-api library: RESTful Bitcoin Payment Channel Protocol Servant API description

Financial

FpMLv53 library: A binding for the Financial Products Markup Language (v5.3)
hasloGUI program: Loan calculator Gtk GUI. Based on haslo (Haskell Loan) library.

Fitness

fit library and test: FIT file decoder

Flight

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.

Flink

flink-statefulfun library: Flink stateful functions SDK

Folding

deferred-folds library and test: Abstractions over deferred folds

Font

FontyFruity library: A true type file format loader
load-font library and program: A cross platform library for loading bundled fonts into your application
sdl2-ttf library and program: Bindings to SDL2_ttf.

Foreign

aligned-foreignptr library: An aligned ForeignPtr type
AppleScript : Call AppleScript from Haskell, and then call back into Haskell.
arbb-vm library: FFI binding to the Intel Array Building Blocks (ArBB) virtual machine.
bindings-libzip library: Low level bindings to libzip.
bindings-yices library: Bindings to the Yices theorem prover
bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
bitwise-enum library, test and benchmark: Bitwise operations on bounded enumerations
bool8 library: Alternative Bool type stored as byte
c-storable-deriving library: Generate C-like storable instances from datatypes
C-structs library and tests: C-Structs implementation for Haskell
c2hs-extra library: Convenient marshallers for complicate C types.
cinvoke library: A binding to cinvoke.
cloudi library: Haskell CloudI API
cplusplus-th library and test: C++ Foreign Import Generation
cpython library and test: Bindings for libpython
cublas library: FFI bindings to the CUDA BLAS library
cuda library and program: FFI binding to the CUDA interface for programming NVIDIA GPUs
cufft library: Haskell bindings for the CUFFT library
cusolver library: FFI bindings to CUDA Solver, a LAPACK-like library
cusparse library: FFI bindings to the CUDA Sparse BLAS library
derive-storable library, test and benchmark: Derive Storable instances with GHC.Generics.
derive-storable-plugin library, test and benchmark: GHC core plugin supporting the derive-storable package.
emacs-module library: Utilities to write Emacs dynamic modules
enumset library: Sets of enumeration values represented by machine words
erlang library: FFI interface to Erlang.
erlang-ffi library and test: Send messages to an Erlang node using Haskell
errno library: a FFI utility
exiftool library: Haskell bindings to ExifTool
foreign-storable-asymmetric library: Types and instances for implementing a Storable with different peek and poke
gmpint library: GMP integer conversions
greencard library and program: GreenCard, a foreign function pre-processor for Haskell.
HaPy library: Haskell bindings for Python
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
hhwloc library: Bindings to https://www.open-mpi.org/projects/hwloc
hlibcpuid library and program: Bindings to https://github.com/anrieff/libcpuid
hlibev library: FFI interface to libev
hlibfam library: FFI interface to libFAM
hlibsass library and test: Low-level bindings to Libsass
hopencl library and test: Haskell bindings for OpenCL
hopenssl library and tests: FFI Bindings to OpenSSL's EVP Digest Interface
hoppy-docs library: C++ FFI generator - Documentation
hoppy-generator library: C++ FFI generator - Code generator
hoppy-runtime library: C++ FFI generator - Runtime support
hoppy-std library: C++ FFI generator - Standard library bindings
HPlot library and program: A minimal monadic PLplot interface for Haskell
hR library: R bindings and interface
hsdns library and programs: Asynchronous DNS Resolver
hslua library and test: Bindings to Lua, an embeddable scripting language
hslua-aeson library and test: Allow aeson data types to be used with lua.
hslua-core library and test: Bindings to Lua, an embeddable scripting language
hslua-module-doclayout library and test: Lua module wrapping Text.DocLayout.
hslua-module-path library and test: Lua module to work with file paths.
hslua-module-system library and test: Lua module wrapper around Haskell's System module.
hslua-module-text library and test: Lua module for text
hswip library: embedding prolog in haskell
hsyscall library: FFI to syscalls
hsyslog library and program: FFI interface to syslog(3) from POSIX.1-2001
htaglib library and test: Bindings to TagLib, audio meta-data library
j2hs program: j2hs
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
language-c-inline library and test: Inline C & Objective-C code in Haskell for language interoperability
libffi library: A binding to libffi
libffi-dynamic library: LibFFI interface with dynamic bidirectional type-driven binding generation
libltdl library and program: FFI interface to libltdl
libnix library and test: Bindings to the nix package manager
libnvvm library and test: FFI binding to libNVVM, a compiler SDK component from NVIDIA
libxml-sax library: Bindings for the libXML2 SAX interface
LibZip library and test: Bindings to libzip, a library for manipulating zip archives.
lua library and test: Lua, an embeddable scripting language
marshal-contt library: A ContT-based wrapper for Haskell-to-C marshalling functions.
mathlink library: Write Mathematica packages in Haskell
matlab library and programs: Matlab bindings and interface
minimung program: Shows how to run grabber on Mac OS X
missing-py2 library and test: Haskell interface to Python
ncurses library: Modernised bindings to GNU ncurses
notmuch-haskell library and program: Binding for notmuch MUA library
nvvm library: FFI bindings to NVVM
primesieve library and programs: FFI bindings for the primesieve library.
Salsa library: A .NET Bridge for Haskell
sdl2-gfx library and program: Bindings to SDL2_gfx.
sdl2-image library and program: Bindings to SDL2_image.
sdl2-mixer library and programs: Bindings to SDL2_mixer.
storable library: Storable type class for variable-sized data
storable-enum library: Wrapper that makes any Enum type Storable
storable-record library and program: Elegant definition of Storable instances for records
storable-tuple library: Storable instance for pairs and triples
tasty-lua library and test: Write tests in Lua, integrate into tasty.
Thrift library: Haskell bindings for the Apache Thrift RPC system
thrift library and test: Haskell bindings for the Apache Thrift RPC system
timezone-detect library and test: Haskell bindings for the zone-detect C library; plus tz-aware utils.
winerror : Error handling for foreign calls to the Windows API.
yajl library: Bindings for YAJL, an event-based JSON implementation
zbar library: zbar bindings in Haskell

Foreign Binding

emacs-module library: Utilities to write Emacs dynamic modules
libxslt library: Binding to libxslt
rdtsc-enolan library: Binding to sources of high-efficiency, high-precision, ...
sdl2-ttf library and program: Bindings to SDL2_ttf.
souffle-haskell library and test: Souffle Datalog bindings for Haskell
sundown library: Bindings to the sundown markdown library
upskirt library: Binding to upskirt

Formal Languages

ADPfusion library, programs and test: Efficient, high-level dynamic programming.
ADPfusionForest library, programs, test and benchmark: Dynamic programming on tree and forest structures
ADPfusionSet library and test: Dynamic programming for Set data structures.
Forestry library, program, test and benchmark: Comparison of trees and forests.
ForestStructures library, test and benchmark: Tree- and forest structures
FormalGrammars library and test: (Context-free) grammars in formal language theory
GenussFold library, program and test: MCFGs for Genus-1 RNA Pseudoknots
GrammarProducts library, program and test: Grammar products and higher-dimensional grammars
lindenmayer library: L-systems in Haskell
smt2-parser library and test: A Haskell parser for SMT-LIB version 2.6

Formal Methods

acl2 library: Writing and calling ACL2 from Haskell.
afv program: Infinite state model checking of iterative C programs.
atp library and tests: Interface to automated theorem provers
boolector library and tests: Haskell bindings for the Boolector SMT solver
CSPM-CoreLanguage library: Definition of a CSP core-language.
CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
CSPM-FiringRules library: Firing rules semantic of CSPM
CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
CSPM-Interpreter library: An interpreter for CSPM
CSPM-ToProlog library: some modules specific for the ProB tool
dove library: The Dove verification language.
g2 library, programs and test: Haskell symbolic execution engine.
g2q library: G2Q allows constraint programming, via writing Haskell predicates.
ghc-proofs library and tests: GHC plugin to prove program equations by simplification
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
hz3 library, program and test: Bindings for the Z3 Theorem Prover
improve library: An imperative, verifiable programming language for high assurance applications.
opentheory library and test: The standard theory library
opentheory-bits library: Natural number to bit-list conversions
opentheory-byte library: Bytes
opentheory-primitive library and test: Haskell primitives used by OpenTheory packages
opentheory-probability library: Probability
sbv library, tests and benchmarks: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
SmtLib library: Library for parsing SMTLIB2
smtlib2 library: A type-safe interface to communicate with an SMT solver.
smtlib2-debug library: Dump the communication with an SMT solver for debugging purposes.
smtlib2-pipe library and test: A type-safe interface to communicate with an SMT solver.
smtlib2-quickcheck library: Helper functions to create SMTLib expressions in QuickCheck
smtlib2-timing library: Get timing informations for SMT queries
theoremquest library: A common library for TheoremQuest, a theorem proving game.
theoremquest-client program: A simple client for the TheoremQuest theorem proving game.
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
tptp library and tests: Parser and pretty printer for the TPTP language
what4 library, program and tests: Solver-agnostic symbolic values support for issuing queries
yices-painless library: An embedded language for programming the Yices SMT solver
z3 library, program and test: Bindings for the Z3 Theorem Prover

Format

vformat library and test: A Python str.format() like formatter
vformat-aeson library and test: Extend vformat to Aeson datatypes
vformat-time library and test: Extend vformat to time datatypes

Formatting

fourmolu library, program and test: A formatter for Haskell source code
ormolu library, program and test: A formatter for Haskell source code

Foundation

foundation tests and benchmark: Alternative prelude with batteries and no dependencies
foundation-edge library: foundation's edge with the conventional set of packages

Fractals

3d-graphics-examples programs: Examples of 3D graphics programming with OpenGL

Framework

eve library and test: An extensible event framework
metro library: A simple tcp and udp socket server framework
platinum-parsing library, program and test: General Framework for compiler development.
tonatona library and tests: meta application framework

FRP

AFSM library: Arrowized functional state machines
Animas library: Updated version of Yampa: a library for programming hybrid systems.
artery library: A simple, arrow-based reactive programming
bearriver library: FRP Yampa replacement implemented with Monadic Stream Functions.
bot library: bots for functional reactive programming
broccoli library: Small library for interactive functional programs.
buster library: Almost but not quite entirely unlike FRP
buster-gtk library: Almost but not quite entirely unlike FRP
buster-network library: Almost but not quite entirely unlike FRP
DefendTheKing programs: A simple RTS game
dow program: Dungeons of Wor
drClickOn library: Monadic FRP
dunai library and tests: Generalised reactive framework supporting classic, arrowized and monadic FRP.
dunai-core library: Generalised reactive framework supporting classic, ...
DysFRP library: dysFunctional Reactive Programming
DysFRP-Cairo library: dysFunctional Reactive Programming on Cairo
DysFRP-Craftwerk library: dysFunctional Reactive Programming on Craftwerk
elerea library: A minimalistic FRP library
elerea-examples programs: Example applications for Elerea
essence-of-live-coding library, programs and test: General purpose live coding framework
essence-of-live-coding-gloss library: General purpose live coding framework - Gloss backend
essence-of-live-coding-gloss-example program: General purpose live coding framework - Gloss example
essence-of-live-coding-pulse library: General purpose live coding framework - pulse backend
essence-of-live-coding-pulse-example program: General purpose live coding framework - pulse backend example
essence-of-live-coding-quickcheck library: General purpose live coding framework - QuickCheck integration
essence-of-live-coding-warp library and test: General purpose live coding framework
euphoria library, test and benchmark: Dynamic network FRP with events and continuous values
glazier-pipes library: A threaded rendering framework using glaizer and pipes
grapefruit-examples library: Examples using the Grapefruit library
grapefruit-frp library: Functional Reactive Programming core
grapefruit-records library: A record system for Functional Reactive Programming
grapefruit-ui library: Declarative user interface programming
grapefruit-ui-gtk library: GTK+-based backend for declarative user interface programming
haskanoid program: A breakout game written in Yampa using SDL
helm library, program and test: A functionally reactive game engine.
machinecell library and tests: Arrow based stream transducers
midair library: Hot-swappable FRP
Moe library and program: A FRP library based on signal functions.
netwire library: Functional reactive programming library
ordrea library and test: Push-pull implementation of discrete-time FRP
patch library and test: Data structures for describing changes to other data structures.
peakachu library: Experiemental library for composable interactive programs
pipes-fluid library and test: Reactively combines Producers so that a value is yielded as soon as possible.
Rattus library and tests: A modal FRP language
reactive : Push-pull functional reactive programming
reactive-bacon library and test: FRP (functional reactive programming) framework
reactive-banana library and test: Library for functional reactive programming (FRP).
reactive-banana-automation library and test: home (etc) automation using reactive-banana
reactive-banana-bunch library: Extend reactive-banana to multiple events per time point
reactive-banana-sdl2 library and test: Reactive Banana integration with SDL2
reactive-banana-threepenny library and programs: Examples for the reactive-banana library, using threepenny-gui.
reactive-banana-wx library and programs: Examples for the reactive-banana library, using wxHaskell.
reactive-fieldtrip library: Connect Reactive and FieldTrip
reactive-glut library: Connects Reactive and GLUT
reactive-thread library and program: Reactive programming via imperative threads
reactivity : An alternate implementation of push-pull FRP.
reenact library: A reimplementation of the Reactive library.
reflex library, tests and benchmarks: Higher-order Functional Reactive Programming
reflex-animation library: Continuous animations support for reflex
reflex-backend-wai library and program: Reflex interface to `wai`
reflex-basic-host library and programs: A basic Reflex host for backend work
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-contrib library: ...
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dom-svg library: Reflex functions for SVG elements.
reflex-dynamic-containers library and test: various dynamic containers for Reflex
reflex-external-ref library: External reference with reactivity support
reflex-fsnotify library: Reflex FRP interface for watching files
reflex-gadt-api library and program: Interact with a GADT API in your reflex-dom application.
reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
reflex-gi-gtk library and program: Helper functions to use reflex with gi-gtk
reflex-gloss-scene library and programs: A simple scene-graph using reflex and gloss
reflex-jsx library: Use jsx-like syntax in Reflex
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
reflex-orphans library and test: Useful missing instances for Reflex
reflex-process library, program and test: Reflex FRP interface for running system processes
reflex-test-host library and test: reflex host methods for testing without external events
reflex-transformers library: Collections and switchable Monad transformers for Reflex
reflex-vty library and program: Reflex FRP host and widgets for VTY applications
rhine library: Functional Reactive Programming with type-level clocks
rhine-gloss library and program: Gloss backend for Rhine
rsagl-frp library: The RogueStar Animation and Graphics Library: Functional Reactive Programming
RxHaskell library: Reactive Extensions for Haskell
shine-varying library and tests: FRP interface for shine using the varying package
simple-affine-space library and tests: A simple library for affine and vector spaces.
sodium library: Sodium Reactive Programming (FRP) System
spice library: An FRP-based game engine written in Haskell.
tempus program: Interpreter for the FRP language Tempus
TORCS library and program: Bindings to the TORCS vehicle simulator.
Updater library: Monadic FRP library based on stm
varying library, program, tests and benchmark: FRP through value streams and monadic splines.
wires library and programs: Functional reactive programming library
wxFruit library and program: An implementation of Fruit using wxHaskell.
Yampa library, programs and tests: Elegant Functional Reactive Programming Language for Hybrid Systems
Yampa-core library, programs and tests: Library for programming hybrid systems.
yampa-glut library and program: Connects Yampa and GLUT
YFrob library: Yampa-based library for programming robots

FSM

FSM library: Basic concepts of finite state machines.

Functions

apply-unordered library and test: Apply a function to an argument specified by a type level Nat
apply-unordered-mono library and test: Apply functions to arguments in an unordered type-directed fashion
flow library and test: Write more understandable Haskell.
flow-er library and test: More directional operators
invert library, test and benchmark: Automatically generate a function's inverse
op library and test: Common operators encouraging large-scale easy reading
overhang library: Hang loose with your lambdas!
poly-arity library: Tools for working with functions of undetermined arity
wrap library: Wrap a function's return value with another function

Functors

bifunctors library and test: Bifunctors
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
matchable library and test: A type class for Matchable Functors.
matchable-th library and test: Generates Matchable instances using TemplateHaskell
representable-functors library: Representable functors
representable-tries library: Tries from representations of polynomial functors
selections library: Combinators for operating with selections over an underlying functor
transformers-bifunctors library: Bifunctors over monad transformers.

Futhark

shake-futhark library: Dependency tracking for Futhark

Futures

futures library: Simple and fast implementation of Future

Game

4Blocks program: A tetris-like game (works with GHC 6.8.3 and Gtk2hs 0.9.13)
abc-puzzle program: Generate instances of the ABC Logic Puzzle.
Advgame program: Lisperati's adventure game in Lisp translated to Haskell
aeson-tiled library, program and test: Aeson instances for the Tiled map editor.
affection library and programs: A simple Game Engine using SDL
Allure library, program and test: Near-future Sci-Fi roguelike and tactical squad combat game
animate library and test: Animation for sprites
animate-example program: Animation for sprites
animate-frames library, program and test: Convert sprite frames to animate files
animate-preview library and program: Preview tool for sprite animation
animate-sdl2 library: sdl2 + animate auxiliary library
ansi-terminal-game library, programs and test: sdl-like functions for terminal applications, based on ansi-terminal
antisplice library: An engine for text-based dungeons.
apecs library, test and benchmark: Fast Entity-Component-System library for game programming
apecs-stm library: STM stores for apecs
armada program: Space-based real time strategy game
artifact library: Basic types and instances for Valve's Artifact Card-set API
astrds program: an incomplete 2d space game
babylon program: An implementation of a simple 2-player board game
battleplace library: Core definitions for BattlePlace.io service
battleplace-api library: Public API definitions of BattlePlace.io service
battleships library and programs: A web-based implementation of battleships including an AI opponent.
betris library and program: A horizontal version of tetris for braille users
bishbosh library, program and test: Plays chess.
bloxorz program: OpenGL Logic Game
blubber program: The blubber client; connects to the blubber server.
blubber-server library and program: The blubber server, serves blubber clients.
board-games library, program, test and benchmarks: Three games for inclusion in a web server
boardgame library, program and test: Modeling boardgames
boomslang program: Boomshine clone
breakout program: A simple Breakout game implementation.
brians-brain program: A Haskell implementation of the Brian's Brain cellular automaton
call library and program: The call game engine
chesshs library: Simple library for validating chess moves and parsing PGN files
chessIO library, programs and test: Basic chess library
cuboid program: 3D Yampa/GLUT Puzzle Game
DAG-Tournament program: Real-Time Game Tournament Evaluator
darkplaces-demo library, program and benchmark: Utility and parser for DarkPlaces demo files
darkplaces-rcon library and test: Darkplaces rcon client library
darkplaces-rcon-util library, program and test: Darplaces rcon utility
darkplaces-text library and test: Parser for darkplaces colorful text
DefendTheKing programs: A simple RTS game
dgs library: Haskell front-end for DGS' bot interface
dice library and program: Simplistic D&D style dice-rolling system.
dobutokO-poetry library and program: ...
dobutokO-poetry-general library: ...
dobutokO-poetry-general-languages library: Helps to order the 7 or less words to obtain somewhat suitable for poetry or music text
dominion library, program and test: A simulator for the board game Dominion.
dow program: Dungeons of Wor
draw-poker library, programs and test: playing draw poker
dual-game program: Network multiplayer 2D shooting game
ease library: Robert Penner's easing equations
ecstasy library: A GHC.Generics based entity component system.
edge program: Top view space combat arcade game
Eternal10Seconds program: A 2-D shooting game
falling-turnip program: Falling sand game/cellular automata simulation using regular parallel arrays.
fallingblocks program: A fun falling blocks game.
fen2s library, program and test: Converting a chess position from FEN notation to text
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
fizzbuzz library: test
foo program: Paper soccer, an OpenGL game.
frag program: A 3-D First Person Shooter Game
freekick2 programs: A soccer game
french-cards library and tests: French Playing Cards
FunGEn library and programs: A lightweight, cross-platform, OpenGL-based game engine.
fwgl library: Game engine
fwgl-glfw library: FWGL GLFW backend
fwgl-javascript library: FWGL GHCJS backend
gameclock program: Game clock that shows two analog clock faces
GeBoP program: Several games
gemstone library: A simple library of helpers for SDL+GL games.
general-games library and test: Library supporting simulation of a number of games
GeneralTicTacToe program: A general TicTacToe game implementation.
gloss-game library: Gloss wrapper that simplifies writing games
goatee library and test: A monadic take on a 2,500-year-old board game - library.
goatee-gtk library, program and test: A monadic take on a 2,500-year-old board game - GTK+ UI.
gore-and-ash library: Core of FRP game engine called Gore&Ash
gore-and-ash-actor library: Gore&Ash engine extension that implements actor style of programming
gore-and-ash-async library and test: Core module for Gore&Ash engine that embeds async IO actions into game loop.
gore-and-ash-demo programs: Demonstration game for Gore&Ash game engine
gore-and-ash-glfw library: Core module for Gore&Ash engine for GLFW input events
gore-and-ash-lambdacube library and programs: Core module for Gore&Ash engine that do something.
gore-and-ash-logging library: Core module for gore-and-ash with logging utilities
gore-and-ash-network library: Core module for Gore&Ash engine with low level network API
gore-and-ash-sdl library: Gore&Ash core module for integration with SDL library
grid-proto library and programs: Grid-based prototyping framework
gridland library and program: Grid-based multimedia engine
h-reversi library, program and test: Reversi game in haskell/blank-canvas
h2048 library, programs and test: An Implementation of Game 2048
hackertyper program: "Hack" like a programmer in movies and games!
halma library and test: Library implementing Halma rules
halma-gui program: GTK application for playing Halma
halma-telegram-bot program: Telegram bot for playing Halma
hanabi-dealer library and programs: Hanabi card game
Hangman program and test: The classic game of Hangman.
hangman program: Hangman implementation in Haskell written in two hours.
happlets library: "Haskell Applets" provides an event handler and a canvas for building simple GUI apps.
happlets-lib-gtk library and test: The "Haskell Applets" Gtk+ ver. 2 back-end for "happlets".
haskanoid program: A breakout game written in Yampa using SDL
haskell-go-checkers program: Go and Checkers game in Haskell
haskell-in-space programs: 'Asteroids' arcade games.
haskell-spacegoo library: Client API for Rocket Scissor Spacegoo
Haskelloids program: A reproduction of the Atari 1979 classic "Asteroids"
haskellscrabble library and test: A scrabble library capturing the core game logic of scrabble.
haskmon library: A haskell wrapper for PokeAPI.co (www.pokeapi.co)
haverer library, program and test: Implementation of the rules of Love Letter
hback program: N-back memory game
HCard library: A library for implementing a Deck of Cards
hchesslib library and tests: Chess library
hcube library and program: Virtual Rubik's cube of arbitrary size.
hedra library, program and test: A small library and executable for generating dice rolls.
hetris program: Text Tetris
hexmino program: A small game based on domino-like hexagonal tiles
hfiar library and program: Four in a Row in Haskell!!
hfov library: Field-of-view calculation for low-resolution 2D raster grids.
HGamer3D-API library: Library to enable 3D game development for Haskell - API
HGamer3D-CAudio-Binding library: Library to enable 3D game development for Haskell - cAudio Bindings
HGamer3D-OIS-Binding library: Library to enable 3D game development for Haskell - OIS Bindings
HGE2D library, programs and test: 2D game engine written in Haskell
hinvaders program: Space Invaders
Hipmunk library: A Haskell binding for Chipmunk.
Hipmunk-Utils library and test: Useful functions for Hipmunk
HipmunkPlayground program: A playground for testing Hipmunk.
HODE library: Binding to libODE
hold-em library: An engine for Texas hold'em Poker
hoodie program: A small, toy roguelike
HPong program: A simple OpenGL Pong game based on GLFW
hpylos program: AI of Pylos game with GLUT interface.
Hricket program: A Cricket scoring application.
hricket program: A Cricket scoring application.
hs-pgms library and program: Programmer's Mine Sweeper in Haskell
hs2048 library, program, tests and benchmark: A 2048 clone in Haskell.
hsqml-demo-manic program: HsQML-based clone of Pipe Mania
hsqml-demo-morris program: HsQML-based implementation of Nine Men's Morris
hsqml-morris program: HsQML-based implementation of Nine Men's Morris
hstzaar program: A two player abstract strategy game.
hsudoku library, program and tests: Sudoku game with a GTK3 interface
HTicTacToe program: An SDL tic-tac-toe game.
htiled library: Import from the Tiled map editor.
htzaar program: A two player abstract strategy game.
hyahtzee program: A Yahtzee game implementation in Haskell
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
intricacy programs: A game of competitive puzzle-design
ironforge library and program: A technical demo for Antisplice.
ixshader library: A shallow embedding of the OpenGL Shading Language in Haskell.
java-poker library and program: The etude of the Haskell programming
key-state library and test: Manage key and button states and statuses
kurita library, programs and test: Find the alpha emoji
L-seed library and programs: Plant growing programming game
labyrinth library and test: A complicated turn-based game
labyrinth-server program and test: A complicated turn-based game - Web server
LambdaHack library, program and test: A game engine library for tactical squad ASCII roguelike dungeon crawlers
layers-game program: A prototypical 2d platform game.
Level0 program: A Snake II clone written using SDL.
life program: Conway's Life cellular automaton
lines-of-action library: Lines of Action, 2-player strategy board game
Liquorice library and test: Algorithmic Doom map generation
lostcities program: An implementation of an adictive two-player card game
macbeth-lib library, program and test: Macbeth - A beautiful and minimalistic FICS client
mage program: Rogue-like
mancala program: Simple mancala game.
marionetta program: A study of marionetta movements.
mastermind program: console mastermind decypher
MazesOfMonad program: Console-based Role Playing Game
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
minecraft-data library: a DSL for generating minecraft commands and levels
mines program: Minesweeper simulation using neural networks
minesweeper program: Minesweeper game which is always solvable without guessing
misfortune library and programs: fortune-mod clone
Monadius program: 2-D arcade scroller
Monaris program: A simple tetris clone
netwire-input library: Input handling abstractions for netwire
netwire-input-glfw library and program: GLFW instance of netwire-input
netwire-input-javascript library: JavaScript instance of netwire-input
netwire-vinylglfw-examples programs: Netwire/GLFW/VinylGL input handling demo
Ninjas program: Ninja game
Nomyx program: A Nomic game in haskell
nomyx-api library: REST API for Nomyx
Nomyx-Core library: A Nomic game in haskell
nomyx-core library and test: A Nomic game in haskell
nomyx-server program and test: A Nomic game in haskell
Nomyx-Web library: Web gui for Nomyx
nomyx-web library: Web gui for Nomyx
nyx-game library and program: A bullet-hell game made with SDL2.
octane library and program: Parse Rocket League replays.
ois-input-manager library: wrapper for OIS input manager for use with hogre
pang-a-lambda programs: A super-pang clone
phonetic-languages-examples library and programs: A generalization of the uniqueness-periods-vector-examples functionality.
phonetic-languages-permutations library: Commonly used versions of the phonetic-languages-common package
phonetic-languages-permutations-array library: Permutations and universal set related functions for the phonetic-languages series
phonetic-languages-phonetics-basics library and program: A library for working with generalized phonetic languages usage.
phonetic-languages-plus library and program: Some common shared between different packages functions.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text (usually, ...
phonetic-languages-simplified-base library: ...
phonetic-languages-simplified-common library: A simplified version of the phonetic-languages-functionality
phonetic-languages-simplified-examples-array library and programs: Helps to create Ukrainian texts with the given phonetic properties.
phonetic-languages-simplified-examples-common library: Some commonly used by phonetic-languages-simplified* series functions.
phonetic-languages-simplified-lists-examples library and programs: Simplified and somewhat optimized version of the phonetic-languages-examples.
phonetic-languages-ukrainian library: Prepares Ukrainian text to be used as a phonetic language text
phonetic-languages-ukrainian-array library: Prepares Ukrainian text to be used as a phonetic language text
pine library, programs and test: Functional 2D Game Framework
piyo library, program and test: Haskell game engine like fantasy console.
PlayHangmanGame program: Play Hangman Game
PlayingCards library: Playing cards api
pokemon-go-protobuf-types library: Haskell types for the Pokemon Go protobuf protocol.
Pollutocracy program: An imaginary world
QuadTree library and test: QuadTree library for Haskell, with lens support.
quoridor-hs library, program and test: A Quoridor implementation in Haskell
Raincat program: A puzzle game written in Haskell with a cat in lead role
Rasenschach program: Soccer simulation
rattletrap library, program and test: Parse and generate Rocket League replays.
reflex-sdl2 library and program: SDL2 and reflex FRP
reversi program: Text-only reversi (aka othelo) game
roguestar program: Sci-fi roguelike game. Client application.
roguestar-engine program: Sci-fi roguelike game. Backend.
roguestar-gl library: Sci-fi roguelike game. Client library.
roguestar-glut program: Sci-fi roguelike game. GLUT front-end.
sc2-lowlevel library: Low-level Starcraft II API
sc2-support library: Support and utility library for sc2hs.
sc2hs library and program: An interface to the Starcraft II bot API
scrabble-bot program: Scrabble play generation.
scroll program: scroll(6), a roguelike game
sdl2-fps library: Run of the mill, frames per second timer implementation
secret-santa program: Secret Santa game assigner using QR-Codes
setgame library and program: A console interface to the game of Set
SFML library: SFML bindings
shine-examples programs: Examples for the shine package
showdown program: A simple gtk based Russian Roulette game.
Shu-thing program: A vector shooter game
snake program: A basic console snake game.
snake-game library: Snake Game Using OpenGL
snorkels library and program: Strategic board game of medium complexity
SoccerFun library and program: Football simulation framework for teaching functional programming
SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
solve library, program and test: Solving simple games
SpaceInvaders program: Video game
SpacePrivateers program: Simple space pirate roguelike
spanout program: A breakout clone written in netwire and gloss
starrover2 program: Space simulation game
steambrowser program: List and launch steam games from the cli
switch library and tests: Nintendo Switch Controller Library
sylvia program and test: Lambda calculus visualization
t3-client library: tic-tac-toe Rexports for client
t3-game library and test: tic-tac-toe core
t3-server library: tic-tac-toe server
table-tennis library: A table tennis game tracking engine
tak library and test: A library encoding the rules of Tak, and a playtak.com client.
tak-ai program and test: AI(s) for playing Tak on playtak.com
tateti-tateti program: Meta tic-tac-toe ncurses game.
tcod-haskell library and programs: Bindings to libtcod roguelike engine
TeaHS library: TeaHS Game Creation Library
tetris program: A 2-D clone of Tetris
theoremquest library: A common library for TheoremQuest, a theorem proving game.
theoremquest-client program: A simple client for the TheoremQuest theorem proving game.
thock library, programs and test: A modern TUI typing game featuring online racing against friends.
Tic-Tac-Toe program: Tic Tac Toe in your command line!
tic-tac-toe program: Useful if reading "Why FP matters" by John Hughes
tictactoe3d library: 3D Tic-Tac-Toe game
Titim program: Game for Lounge Marmelade
topkata programs: OpenGL Arcade Game
Tournament library and test: Tournament related algorithms
turing-music program: Plays music generated by Turing machines with 5 states and 2 symbols
turn-loop library: Manage multiple turned-based sessions
twisty library: Simulator of twisty puzzles à la Rubik's Cube
TypeClass program: Typing speed game
TypingTester program: Command Line Typing speed tester
uniqueness-periods-vector library: ...
uniqueness-periods-vector-common library: Generalization of the dobutokO-poetry-general package functionality
uniqueness-periods-vector-examples library and programs: Usage examples for the uniqueness-periods-vector series of packages
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-general library: Some kind of the optimization approach to data inner structure.
uniqueness-periods-vector-properties library: Metrices for the maximum element for the uniqueness-periods-vector packages family.
venzone programs and test: ASCII platform-adventure game
Verba program: A solver for the WordBrain game
waddle library and programs: DOOM WAD file utilities.
werewolf library and program: A game engine for playing werewolf within an arbitrary chat client
werewolf-slack program: A chat interface for playing werewolf in Slack
wordify library, program and test
wxAsteroids program: Try to avoid the asteroids with your space ship
wyvern program: An autoresponder for Dragon Go Server.
YACPong program: Yet Another Pong Clone using SDL.
yampa2048 program: 2048 game clone using Yampa/Gloss
ZMachine program: A Z-machine interpreter

Game Engine

ActionKid library, program and test: An easy-to-use video game framework for Haskell.
alpaca-netcode library and test: Rollback/replay NetCode for realtime, deterministic, multiplayer games.
bogre-banana library and program
deterministic-game-engine library and test: Simple deterministic game engine
fwgl library: Game engine
fwgl-glfw library: FWGL GLFW backend
fwgl-javascript library: FWGL GHCJS backend
helm library, program and test: A functionally reactive game engine.
HGamer3D library: Toolset for the Haskell Game Programmer
HGamer3D-Audio library: Toolset for the Haskell Game Programmer - Audio Functionality
HGamer3D-Bullet-Binding library: Windows Game Engine for the Haskell Programmer - Bullet Bindings
HGamer3D-CEGUI-Binding library: A Toolset for the Haskell Game Programmer - CEGUI Bindings
HGamer3D-Common library: Toolset for the Haskell Game Programmer - Game Engine and Utilities
HGamer3D-Data library: Toolset for the Haskell Game Programmer - Data Definitions
HGamer3D-Enet-Binding library: Enet Binding for HGamer3D
HGamer3D-Graphics3D library: Toolset for the Haskell Game Programmer - 3D Graphics Functionality
HGamer3D-GUI library: GUI Functionality for HGamer3D
HGamer3D-InputSystem library: Joystick, Mouse and Keyboard Functionality for HGamer3D
HGamer3D-Network library: Networking Functionality for HGamer3D
HGamer3D-Ogre-Binding library: Ogre Binding for HGamer3D
HGamer3D-SDL2-Binding library: SDL2 Binding for HGamer3D
HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
HGamer3D-WinEvent library: Windowing and Event Functionality for HGamer3D
HGamer3D-Wire library: Wire Functionality for HGamer3D
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-prelude library: Prelude library.
IrrHaskell library: Haskell FRP binding to the Irrlicht game engine.
LambdaHack library, program and test: A game engine library for tactical squad ASCII roguelike dungeon crawlers
polar-configfile library and test: Fork of ConfigFile for Polar Game Engine
polar-shader library and test: High-level shader compiler framework

Games

diplomacy library: Diplomacy board game
dovin library, program and test: A proof assistant for Magic: The Gathering puzzles.
haskell-snake library and program: Snake game implemetation in Haskell using SDL2
hcheckers program: Implementation of checkers ("draughts") board game - server application
lifter program: A boulderdash-like game and solution validator
smarties library, programs and test: Haskell Behavior Tree Library

Gateway

micro-gateway library and program: A Micro service gateway.

Gemini

gemini-router library: A simple Happstack-style Gemini router
gemini-server library: A lightweight server for the Gemini protocol
gemini-textboard program: A barebones textboard for the Gemini protocol
language-gemini library: Datatypes and parsing/printing functions to represent the Gemini markup language

Genealogy

family-tree library: A family tree library for the Haskell programming language.
gedcom library and test: Parser for the GEDCOM genealogy file format.

General

control-dsl library and test: An alternative to monads in do-notation
do-notation-dsl library and test: An alternative to monads
monad-recorder library and test: Record and replay the results of monadic actions

Generative Music Grammars

AlgoRhythm library, program and test: Algorithmic music composition

Generic

base-generics library: ...
boltzmann-samplers library, test and benchmark: Uniform random generators
generic-arbitrary library: Generic implementation for QuickCheck's Arbitrary
HsTools library: Haskell helper functions
syb-extras library: Higher order versions of the Scrap Your Boilerplate classes

Generics

algebraic-classes library: Conversions between algebraic classes and F-algebras.
alloy library: Generic programming library
alloy-proxy-fd library: Some add-on instances for the Alloy library
Annotations library and test: Constructing, analyzing and destructing annotated trees
ats-storable library and test: Marshal ATS types into Haskell
barbies-th library and test: Create strippable HKD via TH
basic-sop library: Basic examples and functions for generics-sop
BiGUL library: The Bidirectional Generic Update Language
Capabilities library: Separate and contain effects of IO monad.
church library: Automatically convert Generic instances to and from church representations
compdata library, test and benchmark: Compositional Data Types
compdata-automata library and benchmark: Tree automata on Compositional Data Types
compdata-dags library and test: Compositional Data Types on DAGs
compdata-fixplate library: Compdata basics implemented on top of Fixplate
compdata-param library and test: Parametric Compositional Data Types
compstrat library: Strategy combinators for compositional data types
comptrans library: Automatically converting ASTs into compositional data types
constr-eq library: Equality by only Constructor
deep-transformations library and test: Deep natural and unnatural tree transformations, including attribute grammars
derive-enumerable library: Generic instances for enumerating complex data types
derive-IG library: Macro to derive instances for Instant-Generics using Template Haskell
derive-lifted-instances library: Derive class instances though various kinds of lifting
deriving-aeson library and test: Type driven generic aeson instance customisation
deriving-show-simple library and test: Derive a Show instance without field selector names
emgm library and test: Extensible and Modular Generics for the Masses
fixplate library and test: Uniplate-style generic traversals for optionally annotated fixed-point types.
flay library and test: Work generically on your datatype without knowing its shape nor its contents.
functorm library: Data.FunctorM (compatibility package)
gdiff-ig library: Generic diff for the instant-generics library
gdiff-th library and test: Generate gdiff GADTs and Instances.
generic-binary library: Generic Data.Binary derivation using GHC generics.
generic-church library and test: Automatically convert Generic instances to and from church representations
generic-constraints library and test: Constraints via Generic
generic-data library, tests and benchmark: Deriving instances with GHC.Generics and related utilities
generic-deepseq library: Generic deep evaluation of data structures
generic-deriving library and test: Generic programming library for generalised deriving.
generic-functor library and test: Deriving generalized functors with GHC.Generics
generic-labels library and test: Generically extract and replace collections of record fields
generic-lens library and tests: Generically derive traversals, lenses and prisms.
generic-lens-core library: Generically derive traversals, lenses and prisms.
generic-lens-labels library: GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics
generic-lens-lite library and test: Monomorphic field lens like with generic-lens
generic-maybe library, tests and benchmark: A generic version of Data.Maybe
generic-optics library and tests: Generically derive traversals, lenses and prisms.
generic-optics-lite library and test: Monomorphic field opics like with generic-lens
generic-override library: Provides functionality for overriding instances for generic derivation
generic-override-aeson library and test: Provides orphan instances necessary for integrating generic-override and aeson
generic-random library and tests: Generic random generators for QuickCheck
generic-records library: Magic record operations using generics
GenericPretty library: A generic, derivable, haskell pretty printer.
generics-eot library and tests: A library for generic programming that aims to be easy to understand
generics-mrsop library: Generic Programming with Mutually Recursive Sums of Products.
generics-mrsop-gdiff library: Reimplementation of the gdiff algorithm for generics-mrsop
generics-sop library, test and benchmark: Generic Programming using True Sums of Products
generics-sop-lens library: Lenses for types in generics-sop
genifunctors library and test: Generate generalized fmap, foldMap and traverse
geniplate library: Use Template Haskell to generate Uniplate-like functions.
geniplate-mirror library: Use Template Haskell to generate Uniplate-like functions.
gpah program: Generic Programming Use in Hackage
guarded-rewriting library: Datatype-generic rewriting with preconditions
heidi library, program, test and benchmarks: Tidy data in Haskell
instant-aeson library and test: Generic Aeson instances through instant-generics
instant-bytes library and test: Generic Serial instances through instant-generics
instant-deepseq library: Generic NFData instances through instant-generics
instant-generics library: Generic programming library with a sum of products view
instant-hashable library: Generic Hashable instances through instant-generics
instant-zipper library: Heterogenous Zipper in Instant Generics
iso-deriving library and test: Deriving via arbitrary isomorphisms.
json-sop library: Generics JSON (de)serialization using generics-sop
lens library, tests and benchmarks: Lenses, Folds and Traversals
lens-action library: Monadic Getters and Folds
lens-sop library: Computing lenses generically using generics-sop
ligd library: Lightweight Implementation of Generics and Dynamics
listlike-instances library: Extra instances of the ListLike class
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
model library and tests: Derive a model of a data type using Generics
multifocal library and program: Bidirectional Two-level Transformation of XML Schemas
multiplate library: Lightweight generic library for mutually recursive data types.
multiplate-simplified library: Shorter, more generic functions for Multiplate.
multirec library and test: Generic programming for families of recursive datatypes
multirec-alt-deriver library: Alternative multirec instances deriver
multirec-binary library: Generic Data.Binary instances using MultiRec.
mutable-lens library, tests and benchmark: Interoperate mutable references with regular lens
nominal library: Binders and alpha-equivalence made easy
one-liner library and test: Constraint-based generics
pointless-haskell library: Pointless Haskell library
pointless-lenses library: Pointless Lenses library
pointless-rewrite library: Pointless Rewrite library
PPrinter library: A generic derivable Haskell pretty printer
pretty-sop library and test: A generic pretty-printer using generics-sop
projection library: Projection function for arbitrarily nested binary product types.
putlenses library: Put-based lens library
quiet library and test: Generic deriving of Read/Show with no record labels.
rank2classes library and tests: standard type constructor class hierarchy, only with methods of rank 2 types
records-sop library and test: Record subtyping and record utilities with generics-sop
regular library: Generic programming library for regular datatypes.
regular-extras library: Additional functions for regular: arbitrary, coarbitrary, and binary get/put.
regular-web library: Generic programming for the web
reified-records library: Reify records to Maps and back again
RepLib library: Generic programming library with representation types
rewriting library: Generic rewriting library for regular datatypes.
sai-shape-syb library and test: Obtain homogeneous values from arbitrary values, transforming or culling data
shapely-data library and test: Generics using @(,)@ and @Either@, with algebraic operations and typed conversions
smallcheck-kind-generics library, test and benchmark: See README for more info
special-functors library: Control.Applicative, Data.Foldable, Data.Traversable (compatibility package)
spine library: Simple implementation of the generic spine view
split-morphism library and test: Split Epimorphisms and Monomorphisms
staged-gg library: GHC.Generics style staged generics
Strafunski-StrategyLib library: Library for strategic programming
StrategyLib library
syb library and test: Scrap Your Boilerplate
syz library: Scrap Your Zippers
text-generic-pretty library and test: A generic, derivable, haskell pretty printer.
thorn library: Datatype Manipulation with Template Haskell
TYB library: Template Your Boilerplate - a Template Haskell version of SYB
unbound library and test: Generic support for programming with names and binders
unfoldable library: Class of data structures that can be unfolded.
uniplate library: Help writing simple, concise and fast generic operations.
vinyl-generics library and test: Convert plain records to vinyl (and vice versa), generically.
wakame library and tests: Functions to manipulate records
xformat library and test: Extensible, type-safe formatting with scanf- and printf-like functions
yoko library: Generic Programming with Disbanded Data Types
zipper library: Generic zipper for families of recursive datatypes

Gentoo

fquery program: Installed package query tool for Gentoo Linux

Geo

arcgrid library and program: Parse ESRI/ArcInfo (ArcGrid) raster GIS files
arcgrid-viewer program: Simple viewer for ESRI/ArcInfo (ArcGrid) geospatial data

Geography

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.
geocode-google library: Geocoding using the Google Web API
geodetic-types library: Types for geodetic operations
geodetics library and test: Terrestrial coordinate systems and geodetic calculations.
handa-geodata library and programs: Geographic and Geometric Data
hcoord library, program and test: Easily convert between latitude/longitude, UTM and OSGB.
hgeos library and test: Simple Haskell bindings to GEOS C API
hills program: Generate STL models from SRTM elevation data.
HSlippyMap library: OpenStreetMap Slippy Map
jord library, programs and tests: Geographical Position Calculations
mapalgebra library and test: Efficient, polymorphic Map Algebra.
osm-conduit library and test: Parse and operate on OSM data in efficient way
persistent-spatial library and test: Database agnostic, spatially indexed type for geographic points.
vectortiles library, test and benchmark: GIS Vector Tiles, as defined by Mapbox.

Geometry

cubicbezier library and test: Efficient manipulating of 2D cubic bezier curves.
dimensions library and test: Safe type-level dimensionality for multidimensional data.
easytensor library, test and benchmarks: Pure, type-indexed haskell vector, matrix, and tensor library.
easytensor-vulkan library: Use easytensor with vulkan-api.
geos library and test: Bindings for GEOS.
handa-geodata library and programs: Geographic and Geometric Data
hgeometry library, test and benchmark: Geometric Algorithms, Data structures, and Data types.
hgeometry-combinatorial library and tests: Data structures, and Data types.
hgeometry-ipe library and test: Reading and Writing ipe7 files.
hgeometry-svg library and test: Writing geometric primitives from HGeometry as SVG Files
hgeos library and test: Simple Haskell bindings to GEOS C API
hipe library: Support for reading and writing ipe7 files (http://ipe7.sourceforge.net)
nurbs library and test: NURBS
readshp library: Code for reading ESRI Shapefiles.
tropical-geometry library, program, test and benchmark: A Tropical Geometry package for Haskell
visibility library: Simple computation of visibility polygons.
yx library and test: Row-major coordinates

Geospatial

naqsha library and test: A library for working with anything map related.

GHC

box-tuples library: A hack to use GHC.Prim primitives in GHCi
CoreDump library: A GHC plugin for printing GHC's internal Core data structures.
error-analyze library and test: Parse ghc and cabal error messages and give their causes for easier resolution
extensions library, program and test: Parse Haskell Language Extensions
ghc-bignum : GHC BigNum library
ghc-boot library: Shared functionality between GHC and its boot libraries
ghc-boot-th library: Shared functionality between GHC and the @template-haskell@ library
ghc-datasize library: Determine the size of data structures in GHC's memory
ghc-dup library: Explicitly prevent sharing
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-heap library: Functions for walking GHC's heap
ghc-heap-view library and test: Extract the heap representation of Haskell values and thunks
ghc-man-completion program: Generate a bash completion from the GHC manpage
ghc-mod library, programs, tests and benchmark: Happy Haskell Hacking
ghc-prim library: GHC primitives
ghc-trace-events library and benchmarks: Faster traceEvent and traceMarker, and binary object logging for eventlog
ghc-vis library: Live visualization of data structures in GHCi
ghci library: The library supporting GHC's interactive interpreter
ghci-history-parser library and tests: parse output of ghci ":history" command
hackager program: Hackage testing tool
heapsize library and benchmark: Determine the size of runtime data structures
isevaluated library: Check whether a value has been evaluated
linux-perf library and programs: Read files generated by perf on Linux
packman library and tests: Serialization library for GHC
vacuum library: Graph representation of the GHC heap
vacuum-graphviz library: A library for transforming vacuum graphs into GraphViz output

GIS Programs

terrahs library: A Haskell GIS Programming Environment

Git

cli-git library: Bindings to the git command-line interface
git-brunch program and test: git checkout command-line tool
git-config library and test: A simple parser for Git configuration files
git-cuk library and program: Haskell Git Helper Tool
git-embed library: Use TH to embed Git repo information.
gitlab-haskell library and test: A Haskell library for the GitLab web API
gitlib-cmdline library and test: Gitlib repository backend that uses the git command-line tool.
gitlib-s3 library and test: Gitlib repository backend for storing Git objects in Amazon S3
gitson library, tests and benchmark: A document store library for Git + JSON.
hit-graph library: Use graph algorithms to access and manipulate Git repos
hit-on library, program and test: Haskell Git Helper Tool
miss library and test: A Haskell git implimentation
miss-porcelain library: Useability extras built on top of miss.
nix-thunk library and program: Lightweight dependency management with Nix
restless-git library and test: Easy Git repository serialization

GitHub

github-rest library and test: Query the GitHub REST API programmatically
github-types library and test: Type definitions for objects used by the GitHub v3 API
github-webhook-handler library: GitHub WebHook Handler
github-webhook-handler-snap library: GitHub WebHook Handler implementation for Snap
github-webhooks library and test: Aeson instances for GitHub Webhook payloads.

GiveYouAHead

GiveYouAHead library: to auto-do somethings
gyah-bin program: A binary version of GiveYouAHead

Go

tree-sitter-go library: Tree-sitter grammar/parser for Go

Google

firebase-database library, test and benchmark: Google Firebase Database SDK
gogol library: Comprehensive Google Services SDK.
gogol-abusiveexperiencereport library: Google Abusive Experience Report SDK.
gogol-acceleratedmobilepageurl library: Google Accelerated Mobile Pages (AMP) URL SDK.
gogol-accessapproval library: Google Access Approval SDK.
gogol-accesscontextmanager library: Google Access Context Manager SDK.
gogol-adexchange-buyer library: Google Ad Exchange Buyer SDK.
gogol-adexchange-seller library: Google Ad Exchange Seller SDK.
gogol-adexchangebuyer2 library: Google Ad Exchange Buyer API II SDK.
gogol-adexperiencereport library: Google Ad Experience Report SDK.
gogol-admin-datatransfer library: Google Admin Data Transfer SDK.
gogol-admin-directory library: Google Admin Directory SDK.
gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
gogol-admin-reports library: Google Admin Reports SDK.
gogol-adsense library: Google AdSense Management SDK.
gogol-adsense-host library: Google AdSense Host SDK.
gogol-affiliates library: Google Affiliate Network SDK.
gogol-alertcenter library: Google G Suite Alert Center SDK.
gogol-analytics library: Google Analytics SDK.
gogol-analyticsreporting library: Google Analytics Reporting SDK.
gogol-android-enterprise library: Google Play EMM SDK.
gogol-android-publisher library: Google Play Developer SDK.
gogol-androiddeviceprovisioning library: Google Android Device Provisioning Partner SDK.
gogol-androidmanagement library: Google Android Management SDK.
gogol-appengine library: Google App Engine Admin SDK.
gogol-apps-activity library: Google Drive Activity SDK.
gogol-apps-calendar library: Google Calendar SDK.
gogol-apps-licensing library: Google Enterprise License Manager SDK.
gogol-apps-reseller library: Google Enterprise Apps Reseller SDK.
gogol-apps-tasks library: Google Tasks SDK.
gogol-appstate library: Google App State SDK.
gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
gogol-bigquery library: Google BigQuery SDK.
gogol-bigquerydatatransfer library: Google BigQuery Data Transfer SDK.
gogol-bigtableadmin library: Google Cloud Bigtable Admin SDK.
gogol-billing library: Google Cloud Billing SDK.
gogol-binaryauthorization library: Google Binary Authorization SDK.
gogol-blogger library: Google Blogger SDK.
gogol-books library: Google Books SDK.
gogol-chat library: Google Hangouts Chat SDK.
gogol-civicinfo library: Google Civic Information SDK.
gogol-classroom library: Google Classroom SDK.
gogol-cloudasset library: Google Cloud Asset SDK.
gogol-clouderrorreporting library: Google Stackdriver Error Reporting SDK.
gogol-cloudfunctions library: Google Cloud Functions SDK.
gogol-cloudidentity library: Google Cloud Identity SDK.
gogol-cloudiot library: Google Cloud IoT SDK.
gogol-cloudkms library: Google Cloud Key Management Service (KMS) SDK.
gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
gogol-cloudprivatecatalog library: Google Cloud Private Catalog SDK.
gogol-cloudprivatecatalogproducer library: Google Cloud Private Catalog Producer SDK.
gogol-cloudprofiler library: Google Stackdriver Profiler SDK.
gogol-cloudscheduler library: Google Cloud Scheduler SDK.
gogol-cloudsearch library: Google Cloud Search SDK.
gogol-cloudshell library: Google Cloud Shell SDK.
gogol-cloudtasks library: Google Cloud Tasks SDK.
gogol-cloudtrace library: Google Stackdriver Trace SDK.
gogol-commentanalyzer library: Google Perspective Comment Analyzer SDK.
gogol-composer library: Google Cloud Composer SDK.
gogol-compute library: Google Compute Engine SDK.
gogol-consumersurveys library: Google Consumer Surveys SDK.
gogol-container library: Google Kubernetes Engine SDK.
gogol-containeranalysis library: Google Container Analysis SDK.
gogol-containerbuilder library: Google Cloud Build SDK.
gogol-core library and test: Core data types and functionality for Gogol libraries.
gogol-customsearch library: Google CustomSearch SDK.
gogol-dataflow library: Google Dataflow SDK.
gogol-datafusion library: Google Cloud Data Fusion SDK.
gogol-dataproc library: Google Cloud Dataproc SDK.
gogol-datastore library: Google Cloud Datastore SDK.
gogol-debugger library: Google Stackdriver Debugger SDK.
gogol-deploymentmanager library: Google Cloud Deployment Manager SDK.
gogol-dfareporting library: Google DCM/DFA Reporting And Trafficking SDK.
gogol-dialogflow library: Google Dialogflow SDK.
gogol-digitalassetlinks library: Google Digital Asset Links SDK.
gogol-discovery library: Google API Discovery Service SDK.
gogol-dlp library: Google Cloud Data Loss Prevention (DLP) SDK.
gogol-dns library: Google Cloud DNS SDK.
gogol-docs library: Google Docs SDK.
gogol-doubleclick-bids library: Google DoubleClick Bid Manager SDK.
gogol-doubleclick-search library: Google DoubleClick Search SDK.
gogol-drive library: Google Drive SDK.
gogol-driveactivity library: Google Drive Activity SDK.
gogol-factchecktools library: Google Fact Check Tools SDK.
gogol-file library: Google Cloud Filestore SDK.
gogol-firebase-dynamiclinks library: Google Firebase Dynamic Links SDK.
gogol-firebase-rules library: Google Firebase Rules SDK.
gogol-firebasehosting library: Google Firebase Hosting SDK.
gogol-firebaseremoteconfig library: Google Firebase Remote Config SDK.
gogol-firestore library: Google Cloud Firestore SDK.
gogol-fitness library: Google Fitness SDK.
gogol-fonts library: Google Fonts Developer SDK.
gogol-freebasesearch library: Google Freebase Search SDK.
gogol-fusiontables library: Google Fusion Tables SDK.
gogol-games library: Google Play Game Services SDK.
gogol-games-configuration library: Google Play Game Services Publishing SDK.
gogol-games-management library: Google Play Game Services Management SDK.
gogol-genomics library: Google Genomics SDK.
gogol-gmail library: Google Gmail SDK.
gogol-groups-migration library: Google Groups Migration SDK.
gogol-groups-settings library: Google Groups Settings SDK.
gogol-healthcare library: Google Cloud Healthcare SDK.
gogol-iam library: Google Identity and Access Management (IAM) SDK.
gogol-iamcredentials library: Google IAM Service Account Credentials SDK.
gogol-iap library: Google Cloud Identity-Aware Proxy SDK.
gogol-identity-toolkit library: Google Identity Toolkit SDK.
gogol-indexing library: Google Indexing SDK.
gogol-jobs library: Google Cloud Talent Solution SDK.
gogol-kgsearch library: Google Knowledge Graph Search SDK.
gogol-language library: Google Cloud Natural Language SDK.
gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
gogol-libraryagent library: Google Library Agent SDK.
gogol-logging library: Google Stackdriver Logging SDK.
gogol-manufacturers library: Google Manufacturer Center SDK.
gogol-maps-coordinate library: Google Maps Coordinate SDK.
gogol-maps-engine library: Google Maps Engine SDK.
gogol-mirror library: Google Mirror SDK.
gogol-ml library: Google Cloud Machine Learning Engine SDK.
gogol-monitoring library: Google Stackdriver Monitoring SDK.
gogol-oauth2 library: Google OAuth2 SDK.
gogol-oslogin library: Google Cloud OS Login SDK.
gogol-pagespeed library: Google PageSpeed Insights SDK.
gogol-partners library: Google Partners SDK.
gogol-people library: Google People SDK.
gogol-photoslibrary library: Google Photos Library SDK.
gogol-play-moviespartner library: Google Play Movies Partner SDK.
gogol-playcustomapp library: Google Play Custom App Publishing SDK.
gogol-plus library: Google + SDK.
gogol-plus-domains library: Google + Domains SDK.
gogol-poly library: Google Poly SDK.
gogol-prediction library: Google Prediction SDK.
gogol-proximitybeacon library: Google Proximity Beacon SDK.
gogol-pubsub library: Google Cloud Pub/Sub SDK.
gogol-qpxexpress library: Google QPX Express SDK.
gogol-redis library: Google Cloud Memorystore for Redis SDK.
gogol-remotebuildexecution library: Google Remote Build Execution SDK.
gogol-replicapool library: Google Replica Pool SDK.
gogol-replicapool-updater library: Google Compute Engine Instance Group Updater SDK.
gogol-resourcemanager library: Google Cloud Resource Manager SDK.
gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
gogol-run library: Google Cloud Run SDK.
gogol-runtimeconfig library: Google Cloud Runtime Configuration SDK.
gogol-safebrowsing library: Google Safe Browsing SDK.
gogol-script library: Google Apps Script SDK.
gogol-searchconsole library: Google Search Console URL Testing Tools SDK.
gogol-securitycenter library: Google Cloud Security Command Center SDK.
gogol-servicebroker library: Google Service Broker SDK.
gogol-serviceconsumermanagement library: Google Service Consumer Management SDK.
gogol-servicecontrol library: Google Service Control SDK.
gogol-servicemanagement library: Google Service Management SDK.
gogol-servicenetworking library: Google Service Networking SDK.
gogol-serviceusage library: Google Service Usage SDK.
gogol-serviceuser library: Google Service User SDK.
gogol-sheets library: Google Sheets SDK.
gogol-shopping-content library: Google Content API for Shopping SDK.
gogol-siteverification library: Google Site Verification SDK.
gogol-slides library: Google Slides SDK.
gogol-sourcerepo library: Google Cloud Source Repositories SDK.
gogol-spanner library: Google Cloud Spanner SDK.
gogol-spectrum library: Google Spectrum Database SDK.
gogol-speech library: Google Cloud Speech-to-Text SDK.
gogol-sqladmin library: Google Cloud SQL Admin SDK.
gogol-storage library: Google Cloud Storage JSON SDK.
gogol-storage-transfer library: Google Storage Transfer SDK.
gogol-streetviewpublish library: Google Street View Publish SDK.
gogol-surveys library: Google Surveys SDK.
gogol-tagmanager library: Google Tag Manager SDK.
gogol-taskqueue library: Google TaskQueue SDK.
gogol-testing library: Google Cloud Testing SDK.
gogol-texttospeech library: Google Cloud Text-to-Speech SDK.
gogol-toolresults library: Google Cloud Tool Results SDK.
gogol-tpu library: Google Cloud TPU SDK.
gogol-tracing library: Google Tracing SDK.
gogol-translate library: Google Cloud Translation SDK.
gogol-urlshortener library: Google URL Shortener SDK.
gogol-useraccounts library: Google Cloud User Accounts SDK.
gogol-vault library: Google G Suite Vault SDK.
gogol-videointelligence library: Google Cloud Video Intelligence SDK.
gogol-vision library: Google Cloud Vision SDK.
gogol-webmaster-tools library: Google Search Console SDK.
gogol-websecurityscanner library: Google Web Security Scanner SDK.
gogol-youtube library: Google YouTube Data SDK.
gogol-youtube-analytics library: Google YouTube Analytics SDK.
gogol-youtube-reporting library: Google YouTube Reporting SDK.
google-cloud library: Client for the Google Cloud APIs
google-oauth2-jwt library: Get a signed JWT for Google Service Accounts

Gps

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.

GPU

OpenCL library and test: Haskell high-level wrapper for OpenCL
shady-gen library: Functional GPU programming - DSEL & compiler

Graph

dijkstra-simple library and test: A simpler Dijkstra shortest paths implementation
gbu library: planar graph embedding into a plane
math-grads library and tests: Library containing graph data structures and graph algorithms
superbubbles library and test: Find "superbubbles", as described in https://arxiv.org/abs/1307.7925
topograph library: Directed acyclic graphs.

Graphics

3d-graphics-examples programs: Examples of 3D graphics programming with OpenGL
3dmodels library: 3D model parsers
AC-Colour library: Efficient RGB colour types.
AC-EasyRaster-GTK library: GTK+ pixel plotting.
AC-PPM library: Trivial package for writing PPM images.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
amby library, test and benchmark: Statistical data visualization
ansigraph library and test: Terminal-based graphing via ANSI and Unicode
aosd library and test: Bindings to libaosd, a library for Cairo-based on-screen displays
ascii-holidays program: ASCII animations for the holidays!
assimp library: The Assimp asset import library
atlas library and test: Skyline rectangle packing
Attrac program: Visualisation of Strange Attractors in 3-Dimensions
autom library: Generates and displays patterns from next nearest neighbors cellular automata
avatar-generator program: A simple random avatar icon generator
awesomium library: High-level Awesomium bindings.
awesomium-glut library: Utilities for using Awesomium with GLUT.
awesomium-raw library: Low-level Awesomium bindings.
babl library: Haskell bindings to BABL library.
bacteria program: braindead utility to compose Xinerama backgrounds
barchart library and program: Creating Bar Charts in Haskell
barcodes-code128 library: Generate Code 128 barcodes as PDFs
barrier library, programs and test: Shields.io style badge generator
bidi-icu library and test: The unicode bidirectional algorithm via ICU
billeksah-forms library: Leksah library
billeksah-pane library: Leksah library
bindings-GLFW library and test: Low-level bindings to GLFW OpenGL library
bindings-linux-videodev2 library: bindings to Video For Linux Two (v4l2) kernel interfaces
bindings-potrace library: Low-level bindings to the potrace bitmap tracing library
bitmap library: A library for handling and manipulating bitmaps (rectangular pixel arrays).
bitmap-opengl library: OpenGL support for Data.Bitmap.
bitmaps library: Bitmap library
blank-canvas library: HTML5 Canvas Graphics Library
blaze-svg library: SVG combinator library
Blobs library and program: Diagram editor
boring-window-switcher library, program and test: A boring window switcher.
brick library, programs and test: A declarative terminal user interface library
brick-dropdownmenu library and program: A drop-down menu widget for brick.
brick-skylighting library and program: Show syntax-highlighted text in your Brick UI
butterflies library and program: butterfly tilings
cairo library: Binding to the Cairo library.
cairo-canvas library and program: Simpler drawing API for Cairo.
cairo-core library: Cairo Haskell binding (partial)
cal3d library: Haskell binding to the Cal3D animation library.
cal3d-examples programs: Examples for the Cal3d animation library.
cal3d-opengl library: OpenGL rendering for the Cal3D animation library
camh program: write image files onto 256(or 24bit) color terminals.
caramia library, programs and tests: High-level OpenGL bindings
carettah programs: A presentation tool written with Haskell.
cellrenderer-cairo library: Cairo-based CellRenderer
chalkboard library and programs: Combinators for building and processing 2D images.
chalkboard-viewer library: OpenGL based viewer for chalkboard rendered images.
Chart library: A library for generating 2D Charts and Plots
Chart-cairo library: Cairo backend for Charts.
chart-cli program: Command-line utility to draw charts from input data easily
Chart-diagrams library: Diagrams backend for Charts.
Chart-fltkhs library and programs: A backend for the Chart library for FLTKHS
Chart-gtk library: Utility functions for using the chart library with GTK
Chart-gtk3 library: Utility functions for using the chart library with GTK
chart-histogram library: Easily render histograms with Chart
Chart-simple library: ...
Chart-tests program and test: Tests of the Charts library.
Chitra program: A platform independent mechanism to render graphics using vnc.
clay library and test: CSS preprocessor as embedded Haskell.
clisparkline library and test: Tiny library to pretty print sparklines onto the CLI
collada-output library and program: Generate animated 3d objects in COLLADA
collada-types library: Data exchange between graphics applications
Color library, tests and benchmark: Color spaces and conversions between them
color-counter library and program: Count colors in images
colour library and test: A model for human colour/color perception
colour-accelerate library: Working with colours in Accelerate
colour-space library: Instances of the manifold-classes for colour types
computational-geometry library: Collection of algorithms in Computational Geometry.
context-free-art library, program and test: Generate art from context-free grammars
craftwerk library and programs: 2D graphics library with integrated TikZ output.
craftwerk-cairo library: Cairo backend for Craftwerk.
craftwerk-gtk library and program: Gtk UI for Craftwerk.
crocodile program: An offline renderer supporting ray tracing and photon mapping
csg library, program, tests and benchmark: Analytical CSG (Constructive Solid Geometry) library
cubicbezier library and test: Efficient manipulating of 2D cubic bezier curves.
curves library: Library for drawing curve based images.
CV library: OpenCV based machine vision library
cv-combinators library and program: Functional Combinators for Computer Vision
d3d11binding library and programs: A raw binding for the directX 11
d3js library: Declarative visualization on a web browser with DSL approach.
deepzoom library: A DeepZoom image slicer. Only known to work on 32bit Linux
definitive-graphics library: A definitive package allowing you to open windows, ...
delaunay library and test: Build a Delaunay triangulation of a set of points
derivation-trees library: Typeset Derivation Trees via MetaPost
dia-base library: An EDSL for teaching Haskell with diagrams - data types
dia-functions library: An EDSL for teaching Haskell with diagrams - functions
diagrams library: Embedded domain-specific language for declarative vector graphics
diagrams-boolean library: deprecated, part of diagrams-contrib since 1.4
diagrams-braille library and program: Braille diagrams with plain text
diagrams-builder library and programs: hint-based build service for the diagrams graphics EDSL.
diagrams-cairo library: Cairo backend for diagrams drawing EDSL
diagrams-canvas library: HTML5 canvas backend for diagrams drawing EDSL
diagrams-contrib library and test: Collection of user contributions to diagrams EDSL
diagrams-core library: Core libraries for diagrams EDSL
diagrams-graphviz library: Graph layout and drawing with GraphViz and diagrams
diagrams-gtk library: Backend for rendering diagrams directly to GTK windows
diagrams-haddock library, program and test: Preprocessor for embedding diagrams in Haddock documentation
diagrams-hsqml library: HsQML (Qt5) backend for Diagrams
diagrams-html5 library: HTML5 canvas backend for diagrams drawing EDSL
diagrams-lib library, test and benchmark: Embedded domain-specific language for declarative graphics
diagrams-pdf library: PDF backend for diagrams drawing EDSL
diagrams-pgf library: PGF backend for diagrams drawing EDSL.
diagrams-postscript library: Postscript backend for diagrams drawing EDSL
diagrams-qrcode library: Draw QR codes to SVG, PNG, PDF or PS files.
diagrams-rasterific library and tests: Rasterific backend for diagrams.
diagrams-reflex library: reflex backend for diagrams drawing EDSL.
diagrams-rubiks-cube library: Library for drawing the Rubik's Cube.
diagrams-svg library: SVG backend for diagrams drawing EDSL.
diagrams-tikz library: TikZ backend for diagrams drawing EDSL
diagrams-wx library and program: Backend for rendering diagrams in wxWidgets
dihaa program: ASCII based Diagram drawing in Haskell (Idea based on ditaa)
dot library and program: Datatypes and encoding for graphviz dot files
dot2graphml program: Converter from GraphViz .dot format to yEd GraphML
dvi-processing library: Read/write DVI and TFM file
dx9base library: Backend for a binding to the Microsoft DirectX 9 API.
dx9d3d library: A binding to the Microsoft DirectX 9 API.
dx9d3dx library: A binding to the Microsoft DirectX 9 D3DX API.
dynamic-graph library: Draw and update graphs in real time with OpenGL
dynamic-plot library: Interactive diagram windows
earclipper library, program and test: Ear Clipping Triangulation
easyplot library: A tiny plotting library, utilizes gnuplot for plotting.
easyrender library: User-friendly creation of EPS, PostScript, and PDF files
easytensor-vulkan library: Use easytensor with vulkan-api.
explore program: Experimental Plot data Reconstructor
FieldTrip library: Functional 3D
fig library: Manipulation of FIG files
fltkhs library and programs: FLTK bindings
fltkhs-demos programs: FLTKHS demos. Please scroll to the bottom for more information.
fltkhs-fluid-demos programs: Fltkhs Fluid Demos
fltkhs-fluid-examples programs: Fltkhs Fluid Examples
fltkhs-hello-world program: Fltkhs template project
fltkhs-themes library: A set of themed widgets that provides drop in replacements to the ones in FLTKHS.
font-opengl-basic4x6 library and program: Basic4x6 font for OpenGL
FontyFruity library: A true type file format loader
fractal program: Draw Newton, Julia and Mandelbrot fractals
FractalArt program: Generates colorful wallpapers
Fractaler program
free-game library: Create games for free
freenect library: Interface to the Kinect device.
freetype-simple library: Single line text rendering for OpenGL ES
freetype2 library, program and tests: Haskell bindings for FreeType 2 library
FreeTypeGL library and program: Loadable texture fonts for OpenGL.
friday library and test: A functional image processing library for Haskell.
friday-devil library: Uses the DevIL C library to read and write images from and to files and memory buffers.
friday-scale-dct library and program: Scale Friday images with DCT
FTGL library: Portable TrueType font rendering for OpenGL using the Freetype2 library
FTGL-bytestring library: Portable TrueType font rendering for OpenGL using the Freetype2 library
funcmp library: Functional MetaPost is a Haskell frontend to the MetaPost language
gd library: A Haskell binding to a subset of the GD graphics library
gegl library and programs: Haskell bindings to GEGL library
gelatin library and program: A graphics description language.
gelatin-fruity library: Gelatin's support for rendering TTF outlines, using FontyFruity.
gelatin-gl library and program: OpenGL rendering routines for the gelatin-picture graphics EDSL.
gelatin-sdl2 library and program: An SDL2 backend for the gelatin renderer.
ghci-diagrams library: Display simple diagrams from ghci
gi-cairo-again library: Bridge between packages gi-* and cairo-core.
gi-cairo-connector library: GI friendly Binding to the Cairo library.
gi-cairo-render library: GI friendly Binding to the Cairo library.
gi-gtk-declarative library and test: Declarative GTK+ programming in Haskell
gi-gtk-declarative-app-simple library and test: Declarative GTK+ programming in Haskell in the style of Pux.
gi-gtk-hs library: A wrapper for gi-gtk, adding a few more idiomatic API parts on top
Gifcurry library and programs: GIF creation utility.
gjk library and test: Gilbert-Johnson-Keerthi (GJK) collision detection algorithm
gjk2d library and test
gl library: Complete OpenGL raw bindings
gl-capture library: simple image capture from OpenGL
gl3w library: Haskell bindings for the gl3w library.
glade library: Binding to the glade library.
glapp library and program: An OpenGL micro framework.
Gleam library: HTML Canvas graphics, animations and simulations.
GLFW library: A Haskell binding for GLFW
GLFW-b library and test: Bindings to GLFW OpenGL library
GLFW-b-demo program: GLFW-b demo
GLFW-OGL library: A binding for GLFW (OGL)
GLFW-task library: GLFW utility functions to use together with monad-task.
GLHUI library: Open OpenGL context windows in X11 with libX11
glintcollider program: A simple ray tracer in an early stage of development.
GLMatrix library: Utilities for working with OpenGL matrices
glome-hs library and program: ray tracer
GlomeTrace library: Ray Tracing Library
GlomeVec library: Simple 3D vector library
GlomeView program: SDL Frontend for Glome ray tracer
gloss library: Painless 2D vector graphics, animations and simulations.
gloss-accelerate library: Extras to interface Gloss and Accelerate
gloss-algorithms library: Data structures and algorithms for working with 2D graphics.
gloss-banana library: An Interface for gloss in terms of a reactive-banana Behavior.
gloss-devil library: Display images in Gloss using libdevil for decoding
gloss-examples programs: Examples using the gloss library
gloss-export library, program and test: Export Gloss pictures to png, bmp, tga, tiff, gif and juicy-pixels-image
gloss-game library: Gloss wrapper that simplifies writing games
gloss-juicy library and program: Load any image supported by Juicy.Pixels in your gloss application
gloss-raster library: Parallel rendering of raster images.
gloss-raster-accelerate library: Parallel rendering of raster images using Accelerate
gloss-rendering library: Gloss picture data types and rendering functions.
gloss-sodium library: A Sodium interface to the Gloss drawing package.
glsl library, program and test: Parser and optimizer for a small subset of GLSL
gltf-codec library and test: glTF scene loader
GLURaw library: A raw binding for the OpenGL graphics system
GLUT library and programs: A binding for the OpenGL Utility Toolkit
GLUtil library and program: Miscellaneous OpenGL utilities.
gmndl program: Mandelbrot Set explorer using GTK
gnuplot library and program: 2D and 3D plots using gnuplot
GoogleChart library: Generate web-based charts using the Google Chart API
GPipe library: Typesafe functional GPU graphics programming
GPipe-Collada library: Load GPipe meshes from Collada files
GPipe-Core library, test and benchmark: Typesafe functional GPU graphics programming
GPipe-Examples programs: Examples for the GPipes package
GPipe-GLFW library: GLFW OpenGL context creation for GPipe
GPipe-GLFW4 library, program, test and benchmark: GLFW OpenGL context creation for GPipe
GPipe-TextureLoad library: Load GPipe textures from filesystem
gpolyline library: Pure module for encoding/decoding Google Polyline
grafana library and test: API for creating grafana dashboards represented as json
graph-rewriting-gl library: OpenGL interface for interactive port graph rewriting
graph-rewriting-layout library: Force-directed node placement intended for incremental graph drawing
graph-rewriting-strategies library: Evaluation strategies for port-graph rewriting systems
graphics-drawingcombinators library and program: A functional interface to 2D drawing in OpenGL
graphics-formats-collada library: Load 3D geometry in the COLLADA format
graphicsFormats library: Classes for renderable objects.
graphicstools library and program: Tools for creating graphical UIs, based on wxHaskell.
graphviz library, program, test and benchmark: Bindings to Graphviz for graph visualisation.
gridbounds library and test: Collision detection for GridBox
gridbox library and test: A grid box model
gross library and program: A spoof on gloss for terminal animation
gruff library and program: fractal explorer GUI using the ruff library
gruff-examples programs: Mandelbrot Set examples using ruff and gruff
gtk library: Binding to the Gtk+ graphical user interface library.
gtk-helpers library and tests: A collection of auxiliary operations and widgets related to Gtk+
gtk-jsinput library: A simple custom form widget for gtk which allows inputing of JSON values
gtk-largeTreeStore library and test: Large TreeStore support for gtk2hs
gtk-mac-integration library: Bindings for the Gtk/OS X integration library.
gtk-serialized-event library: GTK+ Serialized event.
gtk-simple-list-view library: ...
gtk-toggle-button-list library: ...
gtk-toy library: Convenient Gtk canvas with mouse and keyboard input.
gtk-traymanager library: A wrapper around the eggtraymanager library for Linux system trays
gtk2hs-hello program: Gtk2Hs Hello World, an example package
gtk3 library and programs: Binding to the Gtk+ 3 graphical user interface library
gtk3-helpers library and tests: A collection of auxiliary operations and widgets related to Gtk
gtk3-mac-integration library: Bindings for the Gtk/OS X integration library.
gtkglext library: Binding to the GTK+ OpenGL Extension
gtkimageview library: Binding to the GtkImageView library.
gtksourceview2 library: Binding to the GtkSourceView library.
gtksourceview3 library: Binding to the GtkSourceView library.
haha library and program: A simple library for creating animated ascii art on ANSI terminals.
handa-opengl library: Utility functions for OpenGL and GLUT
happindicator library: Binding to the appindicator library.
happy-hour library: Generate simple okay-looking bar plots without much effort
haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
haskell-plot library: A library for generating 2D plots painlessly.
haskgame library: Haskell game library.
Hate library and programs: A small 2D game framework.
hayland library, program and tests: Haskell bindings for the C Wayland library.
hcad library: Haskell CAD library
HDRUtils library: Utilities for reading, manipulating, and writing HDR images
hevolisa program: Genetic Mona Lisa problem in Haskell
hevolisa-dph program: Genetic Mona Lisa problem in Haskell - using Data Parallel Haskell
hexif library: Reading Exif data form a JPEG file with Haskell
hfractal program: OpenGL fractal renderer
HGamer3D-Ogre-Binding library: Ogre Binding for HGamer3D
HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
HGL library: A simple graphics library based on X11 or Win32
hgl-example program: Various animations generated using HGL
hierarchical-clustering-diagrams library and test: Draw diagrams of dendrograms made by hierarchical-clustering.
Hieroglyph library: Purely functional 2D graphics for visualization.
himg library and program: Simple gtk2hs image viewer. Point it at an image and fire away.
hip library, test and benchmarks: Haskell Image Processing (HIP) Library.
hls library: Haskell Lindenmayer Systems
hOff-display library and program: The tool to transform the OFF to other image format.
hogre library: Haskell binding to a subset of OGRE
hogre-examples programs: Examples for using Hogre.
honi library and test: OpenNI 2 binding
hoodle-render library: Hoodle file renderer
HOpenCV library and program: A binding for the OpenCV computer vision library
HPDF library, program and test: Generation of PDF documents
HPlot library and program: A minimal monadic PLplot interface for Haskell
hps library: Haskell Postscript
hps-cairo library and programs: Cairo rendering for the haskell postscript library
HRay program: Haskell raytracer
HROOT library: Haskell binding to the ROOT data analysis framework
HROOT-core library: Haskell binding to ROOT Core modules
HROOT-graf library: Haskell binding to ROOT Graf modules
HROOT-hist library: Haskell binding to ROOT Hist modules
HROOT-io library: Haskell binding to ROOT IO modules
HROOT-math library: Haskell binding to ROOT Math modules
HROOT-tree library: Haskell binding to ROOT Tree modules
hs-captcha library: Generate images suitable for use as CAPTCHAs in online web-form security.
hs-gchart library: Haskell wrapper for the Google Chart API
hsexif library and test: EXIF handling library in pure Haskell
HsHaruPDF library: Haskell binding to libharu (http://libharu.sourceforge.net/)
hsmagick library: FFI bindings for the GraphicsMagick library
hsparklines library: Sparklines for Haskell
hsqml library and test: Haskell binding for Qt Quick
hsqml-datamodel library: HsQML (Qt5) data model.
hsqml-datamodel-vinyl library: HsQML DataModel instances for Vinyl Rec.
hsqml-demo-morris program: HsQML-based implementation of Nine Men's Morris
hsqml-demo-notes programs: Sticky notes example program implemented in HsQML
hsqml-demo-samples programs: HsQML sample programs
hsqml-morris program: HsQML-based implementation of Nine Men's Morris
htdp-image library and test: Beginner friendly graphics library.
HTicTacToe program: An SDL tic-tac-toe game.
hubigraph library: A haskell wrap for Ubigraph
hvega library, programs and test: Create Vega-Lite visualizations (version 4) in Haskell.
hvega-theme library: Theme for hvega.
hylide library and program: WebGL live-coding environment for writing shaders with Hylogen
hylogen library: GLSL embedded in Haskell
hyper library: Display class for the HyperHaskell graphical Haskell interpreter
hyper-extra library: Display instances for the HyperHaskell graphical Haskell interpreter
IcoGrid library: Library for generating grids of hexagons and pentagons mapped to a sphere.
icon-fonts library: Package for handling icon fonts in Haskell
identicon library, test and benchmark: Flexible generation of identicons
identicon-style-squares library and test: Squares style for the identicon package
IFS library and program: Iterated Function System generation for Haskell
ige-mac-integration library: Bindings for the Gtk/OS X integration library.
image-type library: Determine the type of an image by reading the first bytes.
imagefilters library: Image Filters (contrast, brightness, gaussian blur, etc)
imagemagick library, programs and test: bindings to imagemagick library
imagesize-conduit library and test: Determine the size of some common image formats.
imj-animation library and test: Animation Framework
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
Imlib library
implicit library, programs, test and benchmark: A math-inspired programmatic 2D & 3D CAD system.
integration library: Fast robust numeric integration via tanh-sinh quadrature
internetmarke program: Shell command for constructing custom stamps for German Post
IrrHaskell library: Haskell FRP binding to the Irrlicht game engine.
isiz program: A program to show the size of image and whether suitable for wallpaper.
itemfield library, programs and tests: A brick Widget for selectable summary of many elements on a terminal
iterm-show-diagrams library: Orphan Show instances for diagrams package that render inline in some terminals
jort program: JP's own ray tracer
jpeg library: A library for decoding JPEG files written in pure Haskell
juicy-draw library and program: Draw and fill lines, rectangles and polygons
juicy-gcode program: SVG to G-Code converter
JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
JuicyPixels-blurhash library, program and tests: Blurhash is a very compact represenation of a placeholder for an image
JuicyPixels-canvas library: Functions for drawing lines, squares and so on pixel by pixel
JuicyPixels-extra library, test and benchmark: Efficiently scale, crop, flip images with JuicyPixels
JuicyPixels-repa library: Convenience functions to obtain array representations of images.
JuicyPixels-scale-dct library and test: Scale JuicyPixels images with DCT
JuicyPixels-stbir library: Scale JuicyPixels images with stb_image_resize
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
ktx library: A binding for libktx from Khronos
ktx-codec library and test: Khronos texture format
lambda-canvas library: Educational drawing canvas for FP explorers.
lambdacube-bullet library: Example for combining LambdaCube and Bullet
lambdacube-compiler library and programs: LambdaCube 3D is a DSL to program GPUs
lambdacube-core library: LambdaCube 3D IR
lambdacube-edsl library: LambdaCube 3D EDSL definition
lambdacube-engine library: 3D rendering engine written entirely in Haskell
lambdacube-examples programs: Examples for LambdaCube
lambdacube-gl library and programs: OpenGL 3.3 Core Profile backend for LambdaCube 3D
lambdacube-ir library: LambdaCube 3D intermediate representation of 3D graphics pipelines
lambdacube-samples programs: Samples for LambdaCube 3D
language-glsl library, program and test: GLSL abstract syntax tree, parser, and pretty-printer
line-drawing library and test: raster line drawing
linear-opengl library: Isomorphisms between linear and OpenGL types
linux-framebuffer library: Linux fbdev (framebuffer device, /dev/fbX) utility functions
liveplot library and programs: Liveplotting
load-font library and program: A cross platform library for loading bundled fonts into your application
louis library: Turning images into text using Braille font
lowgl library: Basic gl wrapper and reference
lp-diagrams library: An EDSL for diagrams based based on linear constraints
lp-diagrams-svg library and program: SVG Backend for lp-diagrams
lucid-extras library and test: Generate more HTML with Lucid - Bootstrap, Rdash, Vega-Lite, Leaflet JS, Email.
lucid-svg library: DSL for SVG using lucid for HTML
lui library: Purely FunctionaL User Interface
luminance library: Type-safe, type-level and stateless graphics framework
luminance-samples programs: Luminance samples
mandulia program: A zooming visualisation of the Mandelbrot Set as many Julia Sets.
mars library: Generates mountainous terrain using a random walk algorithm.
matplotlib library and test: Bindings to Matplotlib; a Python plotting library
mcmaster-gloss-examples programs
Michelangelo library: OpenGL for dummies
minilight library, programs and test: A SDL2-based graphics library, batteries-included.
minilight-lua library and program: A binding library of minilight for Lua langauge.
minimung program: Shows how to run grabber on Mac OS X
minitypeset-opengl library: Layout and render text with TrueType fonts using OpenGL
mmsyn4 library and program: The "glue" between electronic tables and GraphViz
mosaico-lib library: Generación interactiva de mosaicos
nanovg library, program and test: Haskell bindings for nanovg
nanovg-simple library and program: Simple interface to rendering with NanoVG
nehe-tuts programs: Port of the NeHe OpenGL tutorials to Haskell.
netpbm library, test and benchmark: Loading PBM, PGM, PPM image files
Noise library: A Haskell coherent noise generator based on libnoise
not-gloss library: Painless 3D graphics, no affiliation with gloss
not-gloss-examples programs: examples for not-gloss
null-canvas library: HTML5 Canvas Graphics Library - forked Blank Canvas
nymphaea program: An interactive GUI for manipulating L-systems
obj library: Reads and writes obj models.
oculus library: Oculus Rift ffi providing head tracking data
off-simple library: A parser for simplified-syntax OFF files
OGL library: A context aware binding for the OpenGL graphics system
ois-input-manager library: wrapper for OIS input manager for use with hogre
ombra library: Render engine.
OpenCL library and test: Haskell high-level wrapper for OpenCL
OpenCLRaw library: The OpenCL Standard for heterogenous data-parallel computing
opencv library, tests and benchmark: Haskell binding to OpenCV-3.x
opencv-extra library and test: Haskell binding to OpenCV-3.x extra modules
openexr-write library and test: Library for writing images in OpenEXR HDR file format.
OpenGL library: A binding for the OpenGL graphics system
opengl-dlp-stereo library and program: Library and example for using DLP stereo in OpenGL
opengl-spacenavigator library and program: Library and example for using a SpaceNavigator-compatible 3-D mouse with OpenGL
OpenGLCheck library: Quickcheck instances for various data structures.
opengles library, programs and test: Functional interface for OpenGL 4.1+ and OpenGL ES 2.0+
OpenGLRaw library: A raw binding for the OpenGL graphics system
OpenGLRaw21 library: The intersection of OpenGL 2.1 and OpenGL 3.1 Core
OpenSCAD library and test: ADT wrapper and renderer for OpenSCAD models.
OpenVG library: OpenVG (ShivaVG-0.2.1) binding
OpenVGRaw library: Raw binding to OpenVG (ShivaVG-0.2.1 implementation).
oscpacking library: Implements an osculatory packing (kissing circles) algorithm and display.
pango library: Binding to the Pango text rendering engine.
parsnip library: A fast, minimal parser
patch-image programs: Compose a big image from overlapping parts
pcd-loader library, program and test: PCD file loader.
pcf-font library: PCF font parsing and rendering library.
pcf-font-embed library: Template Haskell for embedding text rendered using PCF fonts.
pgm library: Pure Haskell implementation of PGM image format
phraskell program: A fractal viewer.
pictikz program: Converts a svg image to tikz code.
pixelated-avatar-generator library, program and test: A library and application for generating pixelated avatars.
plot library: A plotting library, exportable as eps/pdf/svg/png or renderable with gtk
plot-gtk library: GTK plots and interaction with GHCi
plot-gtk3 library: GTK3 plots and interaction with GHCi
Plot-ho-matic library and programs: Real-time line plotter for generic data
plot-light library and test: A lightweight plotting library, exporting to SVG
plot-light-examples library and programs: Example binaries for plot-light
plotfont library and test: Plotter-like fonts i.e. a series of straight lines which make letter shapes.
plotlyhs library: Haskell bindings to Plotly.js
plots library: Diagrams based plotting library.
ply-loader library and program: PLY file loader.
pnm library: PNM image format header parsing and pretty printing
poppler library: Binding to the Poppler.
potrace library: Trace bitmap images to paths using potrace
potrace-diagrams library: Potrace bindings for the diagrams library
prettyprinter-graphviz library: A prettyprinter backend for graphviz
prettyprinter-vty library: prettyprinter backend for vty
printxosd program: Simple tool to display some text on an on-screen display
prizm library and test: Convert colors to different color spaces, interpolate colors, and transform colors
probability library: Probabilistic Functional Programming
processing library: Web graphic applications with processing.js.
processing-for-haskell library: Computer graphics for kids and artists with Processing implemented in Haskell.
propane library: Functional synthesis of images and animations
puzzle-draw library, programs and test: Creating graphics for pencil puzzles.
puzzle-draw-cmdline program: Creating graphics for pencil puzzles, command line tools.
qrcode-juicypixels library: Converts a qrcode-core image to JuicyPixels
qt library: Qt bindings
qtah-cpp-qt5 library: Qt bindings for Haskell - C++ library
qtah-examples program: Example programs for Qtah Qt bindings
qtah-generator library and program: Generator for Qtah Qt bindings
qtah-qt5 library and test: Qt bindings for Haskell
QuickPlot library and program: Quick and easy data visualization with Haskell
Rasterific library: A pure haskell drawing engine.
rasterific-svg library and program: SVG renderer based on Rasterific.
reactive-banana-sdl library: Reactive Banana bindings for SDL
reactive-banana-sdl2 library and test: Reactive Banana integration with SDL2
reactive-fieldtrip library: Connect Reactive and FieldTrip
reactive-glut library: Connects Reactive and GLUT
reanimate library and test: Animation library based on SVGs.
reanimate-svg library and test: SVG file loader and serializer
record-gl library and test: Utilities for working with OpenGL's GLSL shading language and Nikita Volkov's "Record"s.
reflex-dom-svg library: Reflex functions for SVG elements.
reflex-gloss library: An reflex interface for gloss.
renderable library: An API for managing renderable resources.
repa-v4l2 library and program: Provides high-level access to webcams.
rhythm-game-tutorial programs: Haskell rhythm game tutorial
rigel-viz library and test: A mid-level wrapper for vega-lite
robot library: Simulate keyboard and mouse events
rsagl library: The RogueStar Animation and Graphics Library
scaleimage program: Scale an image to a new geometry
scenegraph library and test: Scene Graph
sdl-try-drivers program: small testing tool for sdl2 and accelerated drivers
sdl2 library, programs and test: Both high- and low-level bindings to the SDL library (version 2.0.6+).
sdl2-cairo library: Render with Cairo on SDL textures.
sdl2-cairo-image library: An image loading and rendering library for sdl2 / sdl2-cairo
sdl2-compositor library, programs and test: image compositing with sdl2 - declarative style
sdl2-gfx library and program: Bindings to SDL2_gfx.
sdl2-image library and program: Bindings to SDL2_image.
sdl2-ttf library and program: Bindings to SDL2_ttf.
servant-JuicyPixels library and program: Servant support for JuicyPixels
SFML-control library: Higher level library on top of SFML
sfnt2woff library, program and test: A command line tool to convert TrueType/OpenType fonts to WOFF format
SFont library: SFont SDL Bitmap Fonts
SGdemo program: An example of using the SG and OpenGL libraries
shady-graphics library: Functional GPU programming - DSEL & compiler
shine library: Declarative graphics for the browser using GHCJS
shine-examples programs: Examples for the shine package
shine-varying library and tests: FRP interface for shine using the varying package
simple-firewire library: Simplified interface for firewire cameras
simple-ui library: UI library for terminal.
SimpleGL library: A Simple Graphics Library from the SimpleH framework.
sixel library and program: Sixel library to show images in a terminal emulator
Slides library and test: Generate slides from Haskell code
smallpt-hs program: A Haskell port of the smallpt path tracer.
soegtk library: GUI functions as used in the book "The Haskell School of Expression".
splines library, test and benchmark: B-Splines, other splines, and NURBS.
splot program: A tool for visualizing the lifecycle of many concurrent multi-staged processes.
sscan program: text UI for scanning with SANE
stacked-dag library, program and test: Ascii DAG(Directed acyclic graph) for visualization of dataflow
static-canvas library: DSL to generate HTML5 Canvas javascript.
stb-image library: A wrapper around Sean Barrett's JPEG/PNG decoder
stb-image-redux library and test: Image loading and writing microlibrary
stb-truetype library: A wrapper around Sean Barrett's TrueType rasterizer library.
STL library: STL 3D geometry format parsing and pretty-printing
streaming-png library and program: Perfectly streaming PNG image decoding
stunts program: A revival of the classic game Stunts (LambdaCube tech demo)
svg-builder library: DSL for building SVG.
svg-builder-fork library: DSL for building SVG.
svg-tree library: SVG file loader and serializer
svgcairo library: Binding to the libsvg-cairo library.
SVGFonts library: Fonts from the SVG-Font format
svgone library and program: Optimise SVGs
SVGPath library: Parsing the path command of SVG
svgutils library and program: Helper functions for dealing with SVG files
tart library and program: Terminal Art
tdigest-Chart library and test: Chart generation from tdigest
testpattern program: Display a monitor test pattern
tga library: Reading and writing of tga image files
Thingie library: Purely functional 2D drawing
thumbnail library: generate thumbnail image
thumbnail-plus library and test: Generate thumbnails easily and safely.
thumbnail-polish library: Image thumbnail creation
timeplot program: A tool for visualizing time series from log files.
treemap-html library: Generates HTML for Data.Tree as TreeMap
treemap-html-tools library and programs: Treemap related commands for producing foldable TreeMap HTML.
TrendGraph library: A simple trend Graph script
triangulation library: triangulation of polygons
tsp-viz program: Real time TSP tour visualization.
twentefp-eventloop-graphics library: Used as Lab Assignments Environment at the University of Twente
typograffiti library, program and test: Just let me draw nice text already
UTFTConverter library, program and test: Processing popular picture formats into .c or .raw format in RGB565
uuagc-diagrams library: Utility for drawing attribute grammar pictures with the diagrams package
v4l2 library: interface to Video For Linux Two (V4L2)
v4l2-examples programs: video for linux two examples
Vec-OpenGLRaw library: Instances and functions to interoperate Vec and OpenGL.
Vec-Transform library: This package is obsolete
vect library: A low-dimensional linear algebra library, tailored to computer graphics.
vect-opengl library: OpenGL support for the `vect' low-dimensional linear algebra library.
vector-space-opengl library and test: Instances of vector-space classes for OpenGL types
vinyl-gl library and test: Utilities for working with OpenGL's GLSL shading language and vinyl records.
VRML library, programs and test: VRML parser and generator for Haskell
vte library: Binding to the VTE library.
vtegtk3 library: Binding to the VTE library.
vty-menu library and program: A lib for displaying a menu and getting a selection using VTY
Vulkan library: A binding for the Vulkan API
vulkan library: Bindings to the Vulkan graphics API.
vulkan-api library: Low-level low-overhead vulkan api bindings
vulkan-utils library and test: Utils for the vulkan package
VulkanMemoryAllocator library: Bindings to the VulkanMemoryAllocator library
wallpaper library, programs and test: A library and executable for creating wallpaper, frieze, and rosette patterns.
WaveFront library: Parsers and utilities for the OBJ WaveFront 3D model format
wavefront-obj library and test: Wavefront .obj file loader
weak library: Weak pointer extas
webkit library: Binding to the Webkit library.
webkitgtk3 library: Binding to the Webkit library.
WEditorBrick library and program: Text-editor widget with dynamic line-wrapping for use with Brick.
Win32 : A binding to Windows Win32 API.
Win32-extras library: Provides missing Win32 API
wumpus-basic library: Basic objects and system code built on Wumpus-Core.
wumpus-core library: Pure Haskell PostScript and SVG generation.
wumpus-drawing library: High-level drawing objects built on Wumpus-Basic.
wumpus-microprint library: Microprints - "greek-text" pictures.
wumpus-tree library: Drawing trees
wxSimpleCanvas library: Simple zoomable canvas for wxHaskell
X11 library: A binding to the X11 graphics library
X11-extras library: Missing bindings to the X11 graphics library
X11-rm library: A binding to the resource management functions missing from X11.
X11-xdamage library: A binding to the Xdamage X11 extension library
X11-xfixes library: A binding to the Xfixes X11 extension library
X11-xft library: Bindings to the Xft, X Free Type interface library, and some Xrender parts
x11-xim library: A binding to the xim of X11 graphics library
x11-xinput library: Haskell FFI bindings for X11 XInput library (-lXi)
X11-xshape library: A binding to the Xshape X11 extension library
Xauth library: A binding to the X11 authentication library
xbattbar program: Simple battery indicator
xdot library and program: Parse Graphviz xdot files and interactively view them using GTK and Cairo
xhb library: X Haskell Bindings
xhb-atom-cache library: Atom cache for XHB
xhb-ewmh library: EWMH utilities for XHB
xosd library: A binding to the X on-screen display
xournal-render library: Xournal file renderer
xtest library: Thin FFI bindings to X11 XTest library
yampa-canvas library and program: blank-canvas frontend for Yampa
yampa-glfw library and program: Connects GLFW-b (GLFW 3+) with the Yampa FRP library
yampa-gloss library and program: A GLOSS backend for Yampa
yampa-glut library and program: Connects Yampa and GLUT
yarr library: Yet another array library
yarr-image-io library: Image IO for Yarr library
yeamer library, programs and test: Yesod-based server for interactive presentation slides
yesod-media-simple library: Simple display of media types, served by yesod
yjsvg library: make SVG string from Haskell data
yoga library and program: Bindings to Facebook's Yoga layout library
zsh-battery program: Ascii bars representing battery status

GraphQL

graphql-client library, program and test: A client for Haskell programs to query a GraphQL API
graphql-utils library: GraphQL Utils
morpheus-graphql library and test: Morpheus GraphQL
morpheus-graphql-app library and test: Morpheus GraphQL Core
morpheus-graphql-cli program and test: Morpheus GraphQL CLI
morpheus-graphql-client library and test: Morpheus GraphQL Client
morpheus-graphql-core library and test: Morpheus GraphQL Core
morpheus-graphql-subscriptions library and test: Morpheus GraphQL Subscriptions

Graphs

algebraic-graphs library and test: A library for algebraic graph construction and transformation
algebraic-graphs-io library and test: I/O utilities and datasets for algebraic-graphs
dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
deptrack-core library: DepTrack Core types and model.
deptrack-dot library and test: Facilitate Graphviz representations of DepTrack dependencies.
dom-lt library, test and benchmark: The Lengauer-Tarjan graph dominators algorithm.
dot library and program: Datatypes and encoding for graphviz dot files
edges library and test: Tools for efficient immutable graphs
fgl library, test and benchmark: Martin Erwig's Functional Graph Library
fgl-arbitrary library and test: QuickCheck support for fgl
fgl-extras-decompositions library: Graph decomposition algorithms
fgl-visualize library: Convert FGL graphs to dot (graphviz) files
grakn library and tests: A Haskell client for Grakn
graph-generators library, program and test: Functions for generating structured or random FGL graphs
graph-matchings library: An implementation of algorithms for matchings in graphs
graph-rewriting library: Monadic graph rewriting of hypergraphs with ports and multiedges
graph-rewriting-cl program: Interactive graph rewriting system implementing various well-known combinators
graph-rewriting-gl library: OpenGL interface for interactive port graph rewriting
graph-rewriting-layout library: Force-directed node placement intended for incremental graph drawing
graph-rewriting-strategies library: Evaluation strategies for port-graph rewriting systems
graph-utils library: A simple wrapper & quasi quoter for fgl.
graph-wrapper library and test: A wrapper around the standard Data.Graph with a less awkward interface
Graphalyze library: Graph-Theoretic Analysis library.
graphite library, test and benchmark: Graphs and networks library
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
graphs library: A simple monadic graph library
graphviz library, program, test and benchmark: Bindings to Graphviz for graph visualisation.
graql library and test: Execute Graql queries on a Grakn graph
haggle library and test: A graph library offering mutable, immutable, and inductive graphs
hit-graph library: Use graph algorithms to access and manipulate Git repos
igraph library: Bindings to the igraph C library.
intmap-graph library: A graph library that allows to explore edges after their type
maxsharing program: Maximal sharing of terms in the lambda calculus with letrec
metamorphic library: metamorphisms: ana . cata or understanding folds and unfolds
pangraph library and test: A set of parsers for graph languages and conversions to graph libaries.
planar-graph library: A representation of planar graphs
stacked-dag library, program and test: Ascii DAG(Directed acyclic graph) for visualization of dataflow
unordered-graphs library: Graph library using unordered-containers
xdot library and program: Parse Graphviz xdot files and interactively view them using GTK and Cairo

Groundhog

groundhog-converters library and test: Extended Converter Library for groundhog embedded types

Groups

group-theory library: The theory of groups

GRPC

grpc-api-etcd library: Generated messages and instances for etcd gRPC.

GUI

alsa-gui programs: Some simple interactive programs for sending MIDI control messages via ALSA
AutoForms library: GUI library based upon generic programming (SYB3)
barrie library: Declarative Gtk GUI library
binding-core library and test: Data Binding
binding-gtk library and tests: Data Binding in Gtk2Hs
binding-wx library and tests: Data Binding in WxHaskell
clutterhs library: Bindings to the Clutter animation library
DataTreeView library: A GTK widget for displaying arbitrary Data.Data.Data instances
fltkhs library and programs: FLTK bindings
fltkhs-themes library: A set of themed widgets that provides drop in replacements to the ones in FLTKHS.
gladexml-accessor library: Automagically declares getters for widget handles in specified interface file.
glazier library and test: Extensible effects using ContT, State and variants.
glazier-react library: ReactJS binding using Glazier.Command.
glazier-react-examples program: Examples of using glazier-react
glazier-react-widget library: Generic widget library using glazier-react
grapefruit-examples library: Examples using the Grapefruit library
grapefruit-ui library: Declarative user interface programming
grapefruit-ui-gtk library: GTK+-based backend for declarative user interface programming
gtk-toy library: Convenient Gtk canvas with mouse and keyboard input.
gtk2hs-cast-glade library: A type class for cast functions of Gtk2hs: glade package
gtk2hs-cast-glib library: A type class for cast functions of Gtk2hs: glib package
gtk2hs-cast-gnomevfs library: A type class for cast functions of Gtk2hs: gnomevfs package
gtk2hs-cast-gtk library: A type class for cast functions of Gtk2hs: gtk package
gtk2hs-cast-gtkglext library: A type class for cast functions of Gtk2hs: gtkglext package
gtk2hs-cast-gtksourceview2 library: A type class for cast functions of Gtk2hs: gtksourceview2 package
gtk2hs-cast-th library: A type class for cast functions of Gtk2hs: TH package
gtk2hs-rpn library: Adds a module to gtk2hs allowing layouts to be defined using reverse polish notation.
Gtk2hsGenerics library: Convenience functions to extend Gtk2hs.
happindicator3 library and program: Binding to the appindicator library.
happlets library: "Haskell Applets" provides an event handler and a canvas for building simple GUI apps.
happlets-lib-gtk library and test: The "Haskell Applets" Gtk+ ver. 2 back-end for "happlets".
HGamer3D-CEGUI-Binding library: A Toolset for the Haskell Game Programmer - CEGUI Bindings
himerge program: Haskell Graphical User Interface for Emerge
hois library and program: OIS bindings
hscharm library and programs: minimal ncurses-like library
hsqml library and test: Haskell binding for Qt Quick
hsqml-demo-samples programs: HsQML sample programs
lgtk library and program: Lens GUI Toolkit
live-sequencer library and programs: Live coding of MIDI music
load-font library and program: A cross platform library for loading bundled fonts into your application
ltk library: Leksah tool kit
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
myxine-client library and test: A Haskell client for the Myxine GUI server
pianola library and test: Remotely controlling Java Swing applications
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard
reactive-banana-threepenny library and programs: Examples for the reactive-banana library, using threepenny-gui.
reactive-banana-wx library and programs: Examples for the reactive-banana library, using wxHaskell.
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-jsx library: Use jsx-like syntax in Reflex
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
sindre library and program: A programming language for simple GUIs
slim library and test: Functional reactive user interface programming
sneathlane-haste library: A compositional web UI library, which draws to a Canvas element
SybWidget library: Library which aids constructing generic (SYB3-based) widgets
threepenny-gui library and programs: GUI framework that uses the web browser as a display.
tinyfiledialogs library: Wrapper around the 'tiny file dialogs' C library
treersec library: Structure Editing Combinators
typed-spreadsheet library and programs: Typed and composable spreadsheets
UISF library: Library for Arrowized Graphical User Interfaces.
uni-graphs library: Graphs
uni-htk library: Graphical User Interface for Haskell Programs
uni-uDrawGraph library: Graphs binding
wx library: wxHaskell
wxc library: wxHaskell C++ wrapper
wxcore library: wxHaskell core
WXDiffCtrl library: WXDiffCtrl
wxdirect library and program: helper tool for building wxHaskell
wxFruit library and program: An implementation of Fruit using wxHaskell.
WxGeneric library: Generic (SYB3) construction of wxHaskell widgets
xtc library: eXtended & Typed Controls for wxHaskell.

Hakyll

hakyll-contrib-i18n library and program: A Hakyll library for internationalization.
hakyll-contrib-links library and test: A hakyll library that helps maintain a separate links database.
hakyll-shortcut-links library and test: Use shortcut-links in markdown file for Hakyll

HAM

si-clock library: An interface to the Silicon Labs Si5351 clock chip

Ham-radio

wsjtx-udp library and program: WSJT-X UDP protocol

Happstack

fay-hsx library: Clientside HTML generation for fay.
happstack-clientsession library: client-side session data
happstack-fay library: Support for using Fay with Happstack
happstack-fay-ajax library: Support for using Fay with Happstack
happstack-foundation library: Glue code for using Happstack with acid-state, web-routes, reform, and HSP
happstack-hamlet library: Support for Hamlet HTML templates in Happstack
happstack-heist library: Support for using Heist templates in Happstack
happstack-hsp library: Support for using HSP templates in Happstack
happstack-hstringtemplate library: Support for using HStringTemplate in Happstack
happstack-jmacro library: Support for using JMacro with Happstack
happstack-lite library: Happstack minus the useless stuff
happstack-monad-peel library: monad-peel instances for Happstack types
happstack-plugins library: The haskell application server stack + reload
happstack-server test: Web related tools and services.
happstack-server-tls library: extend happstack-server with https:// support (TLS/SSL)
happstack-server-tls-cryptonite library: Extend happstack-server with native HTTPS support (TLS/SSL)
happstack-yui library: Utilities for using YUI3 with Happstack.

Hardware

blink1 library and program: Control library for blink(1) LED from ThingM
buttplug-hs-core library, program and test: Client library for buttplug.io
chalmers-lava2000 library: Hardware description EDSL
clash library: CAES Language for Synchronous Hardware (CLaSH)
clash-ghc library and programs: Clash: a functional hardware description language - GHC frontend
clash-lib library and test: Clash: a functional hardware description language - As a library
clash-multisignal library
clash-prelude library, tests and benchmark: Clash: a functional hardware description language - Prelude library
clash-prelude-quickcheck library: QuickCheck instances for various types in the CλaSH Prelude
clash-systemverilog library: CAES Language for Synchronous Hardware - SystemVerilog backend
clash-verilog library: CAES Language for Synchronous Hardware - Verilog backend
clash-vhdl library: CAES Language for Synchronous Hardware - VHDL backend
crystalfontz library: Control Crystalfontz LCD displays.
ForSyDe library: ForSyDe's Haskell-embedded Domain Specific Language.
forsyde-deep library and test: ForSyDe's Haskell-embedded Domain Specific Language.
ftdi library and test: A thin layer over USB to communicate with FTDI chips
fxpak library: Interface to the FXPak/FXPak Pro USB interface
gpio library and program: Haskell GPIO interface, designed specifically for the RaspberryPi.
hArduino library: Control your Arduino board from Haskell.
HHDL library: Hardware Description Language embedded in Haskell.
hidapi library: Haskell bindings to HIDAPI
hleap library and program: Web Socket interface to Leap Motion controller
hsI2C library: I2C access for Haskell and Linux
hsverilog library and test: Synthesizable Verilog DSL supporting for multiple clock and reset
HueAPI library: API for controlling Philips Hue lights
hydra-hs library and test: Haskell binding to the Sixense SDK for the Razer Hydra
ice40-prim library: Lattice iCE40 Primitive IP
kafka-device library and programs: UI device events via a Kafka message broker
kafka-device-glut library and program: GLUT events via a Kafka message broker
kafka-device-joystick library and program: Linux joystick events via a Kafka message broker
kafka-device-leap library and program: Leap Motion events via a Kafka message broker
kafka-device-spacenav library and program: Linux SpaceNavigator events via a Kafka message broker
kansas-lava library and programs: Kansas Lava is a hardware simulator and VHDL generator.
kansas-lava-cores library and programs: FPGA Cores Written in Kansas Lava.
kansas-lava-papilio library: Kansas Lava support files for the Papilio FPGA board
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
lion library: RISC-V Core
mercury-api library, programs and tests: Haskell binding to Mercury API for ThingMagic RFID readers
obd library, programs and test: Communicate to OBD interfaces over ELM327
parport library: Simply interfacing the parallel port on linux
pi-lcd library and programs: Control an Adafruit character LCD and keypad kit on a Raspberry Pi
powermate library and programs: bindings for Griffin PowerMate USB
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
serialport library and test: Cross platform serial port library.
si-clock library: An interface to the Silicon Labs Si5351 clock chip
STLinkUSB library: STLink USB interface in Haskell
STM32-Zombie library: control a STM32F103 microcontroller
STM32F103xx-SVD library: Definition for Peripherals,Registers and Fields from STM32F103xx.svd
streamdeck library: Control library for the Elgato Stream Deck
sump library: A Haskell interface to SUMP-compatible logic analyzers
SVD2HS library: translate a SVD of a Microcontroller to Haskell tables
usb library: Communicate with USB devices
usb-iteratee library: Iteratee enumerators for the usb package
vcd library: Reading and writing VCD files.
verilog library: Verilog preprocessor, parser, and AST.
verismith library, program, test and benchmark: Random verilog generation and simulator testing.
Wired library: Wire-aware hardware description
wiringPi library and programs: Access GPIO pins on Raspberry Pi via wiringPi library
xilinx-lava library and programs: The Lava system for Xilinx FPGA design with layout combinators.
york-lava library: A library for digital circuit description.

Hash

adler32 library and test: An implementation of Adler-32, supporting rolling checksum operation
hash library and test: Hashing tools
hash-store library: Hash as cache
hashable-extras library and test: Higher-rank Hashable
monad-hash library and test: Monad transformer for incremental hashing
murmur3 library and test: Pure Haskell implementation of the MurmurHash3 x86_32 algorithm.

Haskell

ban-instance library and test: For when a type should never be an instance of a class
c-storable library: CStorable class
code-conjure library and tests: conjure Haskell functions out of partial definitions
extensions library, program and test: Parse Haskell Language Extensions
fast-tags library, program and test: Fast incremental vi and emacs tags.
fix-imports program and test: Program to manage the imports of a haskell module
haskell-reflect library: Reflect Haskell types.
hs2ats library, program, test and benchmark: Create ATS types from Haskell types
hyperloglogplus library and test: Approximate cardinality estimation using constant space
module-management library, program and test: Clean up module imports, split and merge modules
no-role-annots library and test: Role annotations without -XRoleAnnotations
simple-src-utils programs and tests: source code editing utilities
test-karya library and program: Testing framework.
tree-sitter-haskell library and program: Tree-sitter grammar/parser for Haskell (with GHC extensions)

Haskell2010

haskell2010 library: Compatibility with Haskell 2010
prelude-compat library: Provide Prelude and Data.List with fixed content across GHC versions
prelude2010 library: Provide Prelude with fixed content across GHC versions

Haskell2020

haskell2020 library: Haskell 2020[draft] Standard Library

Haskell98

haskell98 library: Compatibility with Haskell 98
haskell98libraries library: Compatibility with Haskell 98

Hasql

hasql library, tests and benchmark: An efficient PostgreSQL driver with a flexible mapping API
hasql-class library and test: Encodable and Decodable classes for hasql
hasql-cursor-query library and test: A declarative abstraction over PostgreSQL Cursor
hasql-cursor-transaction library: An abstraction for simultaneous fetching from multiple PostgreSQL cursors
hasql-notifications library, program and test: LISTEN/NOTIFY support for Hasql
hasql-optparse-applicative library: "optparse-applicative" parsers for "hasql"
hasql-pool library and test: A pool of connections for Hasql
hasql-th library: Template Haskell utilities for Hasql
hasql-transaction library and test: Composable abstraction over retryable transactions for Hasql
json-pointer-hasql library and test: JSON Pointer extensions for Hasql
optima-for-hasql library: Command-line arguments parsing for Hasql

Health

boots-app library and program: Factory for quickly building an application
quarantimer program: Coronavirus quarantine timer web app for your things

Help

CheatSheet program: A Haskell cheat sheet in PDF and literate formats.
hscurses-fish-ex program: hscurses swimming fish example

Heuristics

banwords library and test: Generalized word blacklister
Binpack library: Common bin-packing heuristics.

Hie

implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles

HKD

aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
harg library and tests: Haskell program configuration using higher kinded data
hkd-default library and test: Apply default value for optional field of HKD

HLS

implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles

HNum

HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.

HTML

flamethrower library: A template engine for HTML
haquery library: jQuery for Haskell.
html-entities library: A codec library for HTML-escaped text and HTML-entities
html-entity-map library and benchmark: Map from HTML5 entity names to the corresponding Unicode text
html-rules library: Perform traversals of HTML structures using sets of rules.
html-tokenizer library and test: An "attoparsec"-based HTML tokenizer
hxt-css library and program: CSS selectors for HXT
islink library: Check if an HTML element is a link
list-t-html-parser library and test: Streaming HTML parser
readability library and program: Extracts text of main article from HTML document
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
type-of-html library, tests and benchmarks: High performance type driven html generation.
type-of-html-static library and test: Optimize static parts of type-of-html.

HTTP

freer-simple-http library and test: Make HTTP requests with freer-simple!
list-t-http-client library: A streaming HTTP client
list-t-libcurl library: A "libcurl"-based streaming HTTP client
quiver-http library: Adapter to stream over HTTP(s) with quiver
sockets-and-pipes library: Support for the Sockets and Pipes book
wai-cors library and tests: CORS for WAI

Hxt

quickcheck-relaxng library: Generate RelaxNG-constrained XML documents for QuickCheck

Hydraulics

epanet-haskell library: Haskell binding for EPANET

Hydrology

SWMMoutGetMB library: A parser for SWMM 5 binary .OUT files

I18n

hakyll-contrib-i18n library and program: A Hakyll library for internationalization.

I2C

hsI2C library: I2C access for Haskell and Linux
si-clock library: An interface to the Silicon Labs Si5351 clock chip

IDE

display-haskell-do library: A display API for HaskellDO
fix-imports program and test: Program to manage the imports of a haskell module
hob library, program and test: A source code editor aiming for the convenience of use
hpage program: A scrapbook for Haskell developers
leksah library and program: Haskell IDE written in Haskell
leksah-server library, programs and test: Metadata collection for leksah
manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-core library: The core of Manatee.
manatee-editor library and program: Editor extension for Manatee.
manatee-template library and program: Template code to create Manatee application.
manatee-welcome library and program: Welcome module to help user play Manatee quickly.
module-management library, program and test: Clean up module imports, split and merge modules
wxhnotepad program: An example of how to implement a basic notepad with wxHaskell

Identification

roc-id library and test: Implementation of the ROC National ID standard.

Image

flac-picture library and test: Support for writing picture to FLAC metadata blocks with JuicyPixels
identicon library, test and benchmark: Flexible generation of identicons
JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
JuicyPixels-blurhash library, program and tests: Blurhash is a very compact represenation of a placeholder for an image
JuicyPixels-extra library, test and benchmark: Efficiently scale, crop, flip images with JuicyPixels
JuicyPixels-scale-dct library and test: Scale JuicyPixels images with DCT
JuicyPixels-stbir library: Scale JuicyPixels images with stb_image_resize
latex-formulae-hakyll library: Use actual LaTeX to render formulae inside Hakyll pages
latex-formulae-image library: A library for rendering LaTeX formulae as images using an actual LaTeX installation
latex-formulae-pandoc library and program: Render LaTeX formulae in pandoc documents to images with an actual LaTeX installation
latex-svg-hakyll library: Use actual LaTeX to render formulae inside Hakyll pages
latex-svg-image library: A library for rendering LaTeX formulae as SVG using an actual LaTeX
latex-svg-pandoc library and program: Render LaTeX formulae in pandoc documents to images with an actual LaTeX
manatee-imageviewer library and program: Image viewer extension for Manatee.
picedit library and program: simple image manipulation functions
pixel-printer library, program and test: A program for turning pixel art into 3D prints
pixelated-avatar-generator library, program and test: A library and application for generating pixelated avatars.
qr-imager library and test: Library to generate images.
sdl2-image library and program: Bindings to SDL2_image.
streaming-png library and program: Perfectly streaming PNG image decoding
webp library and test: JuicyPixels support for WebP format
zbar library: zbar bindings in Haskell

Image Processing

hip library, test and benchmarks: Haskell Image Processing (HIP) Library.
unm-hip library: A Library for the manipulation of images

Image Viewer

haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
manatee-imageviewer library and program: Image viewer extension for Manatee.
pvd programs: A photo viewer daemon application with remote controlling abilities.

Images

perceptual-hash library, program, test and benchmark: Find duplicate images

Indexed

index-core library: Indexed Types

Infrastructure

kerry library and test: Manage and abstract your packer configurations.

Inspection

rewrite-inspector library and programs: Inspection of rewriting steps

Instances

wide-word-instances library: Instances for wide-word

Interaction

dialog library: Simple dialog-based user interfaces
midair library: Hot-swappable FRP

Interactive

interactive-plot library and program: Interactive quick time series plotting

Interfaces

fresco-binding library: Fresco binding for Haskell
GuiTV library: GUIs for Tangible Values
haskelzinc library: CP in Haskell through MiniZinc
hslogger library and test: Versatile logging framework
hslogger-reader library and programs: Parsing hslogger-produced logs.
hslogger-template library: Automatic generation of hslogger functions
hslogger4j library: DEPRECATED hslogger handlers for log4j's XMLLayout
TV library: Tangible Values -- composable interfaces

Interpolation

interp library, program and test: Tracery-like randomized text interpolation

Interpreter

caledon program: a logic programming language based on the calculus of constructions

Interpreters

bound-extras library and test: ScopeH and ScopeT extras for bound
j library and test: J in Haskell

IO

binary-io library and test: Read and write values of types that implement Binary
conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
control-dsl library and test: An alternative to monads in do-notation
do-notation-dsl library and test: An alternative to monads
eio library and program: IO with Exceptions tracked on the type-level
Files library, program and test: File content extraction/rearrangement
pathological-bytestrings library: Pathological ByteStrings for testing
safeio library and test: Write output to disk atomically
with-utf8 library, program and test: Get your IO right on the first try

IO-Streams

binary-streams library and test: data serialization/deserialization io-streams library
brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
cereal-io-streams library, test and benchmark: io-streams support for the cereal binary serialization library
cereal-streams library, test and benchmark: Use cereal to encode/decode io-streams.
heartbeat-streams library: Heartbeats for io-streams
http-client-streams library: http-client for io-streams supporting openssl
http-io-streams library: HTTP and WebSocket client based on io-streams
http-streams library and test: An HTTP client using io-streams
io-streams library and test: Simple, composable, and easy-to-use stream I/O
io-streams-haproxy library and test: HAProxy protocol 1.5 support for io-streams
io-streams-http library: http-client for io-streams
lzma-streams library and test: IO-Streams interface for lzma/xz compression
openssl-streams library and test: OpenSSL network support for io-streams.
seqid-streams library: Sequence ID IO-Streams
sha-streams library and program: SHA hashes for io-streams.
snap-core library and test: Snap: A Haskell Web Framework (core interfaces and types)
snap-server library, programs, test and benchmark: A web server for the Snap Framework
unagi-streams library: Unagi Chan IO-Streams
unliftio-streams library: Generalization of io-streams to MonadUnliftIO
wire-streams library, test and benchmark: Fast binary io-streams adapter.

IoC

boots library and test: IoC Monad in Haskell

IoT

mqtt library, tests and benchmarks: An MQTT protocol implementation.

IRC

clogparse library: Parse IRC logs such as the #haskell logs on tunes.org
funbot program: IRC bot for fun, learning, creativity and collaboration.
irc-bytestring library: serialization and parsing of IRC messages
irc-colors library: Colourize your IRC strings
irc-fun-bot library: Library for writing fun IRC bots.
irc-fun-client library: Another library for writing IRC clients.
irc-fun-messages library: Types and functions for working with the IRC protocol.
irc-fun-types library: Common types for IRC related packages
manatee-ircclient library and programs: IRC client extension for Manatee.
rss2irc program: watches an RSS/Atom feed and writes it to an IRC channel
simpleirc library and test: Simple IRC Library
y0l0bot program: #plaimi's all-encompassing bot

IRC Client

manatee-ircclient library and programs: IRC client extension for Manatee.
xchat-plugin library and program: XChat

IRI

iri library and test: RFC-based resource identifier library

Iteratee

ChannelT library: Generalized stream processors

J

j library and test: J in Haskell

Japanese Natural Language Processing

sentence-jp library: Easily generating message of japanese natural language

Java

haven program: Recursively retrieve maven dependencies
inline-java library, test and benchmark: Java interop via inline Java code in Haskell modules.
j2hs program: j2hs
jarify library and program: Jarification of Haskell sources
java-adt program: Create immutable algebraic data structures for Java.
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.
jni library and test: Complete JNI raw bindings.
jvm library, test and benchmark: Call JVM methods from Haskell.
jvm-batching library, test and benchmark: Provides batched marshalling of values between Java and Haskell.
jvm-binary library, test and benchmark: A library for reading Java class-files
jvm-streaming library, test and benchmark: Expose Java iterators as streams from the streaming package.
sparkle library and program: Distributed Apache Spark applications in Haskell
tree-sitter-java library: Tree-sitter grammar/parser for Java

JavaScript

fwgl library: Game engine
fwgl-javascript library: FWGL GHCJS backend
haste-compiler programs: Haskell To ECMAScript compiler
js-chart library and test: Obtain minified chart.js code
js-dgtable library and test: Obtain minified jquery.dgtable code
js-flot library and test: Obtain minified flot code
js-good-parts library: Javascript: The Good Parts -- AST & Pretty Printer
js-jquery library and test: Obtain minified jQuery code
jsaddle library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-clib library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-warp library and test: Interface for JavaScript that works with GHCJS and GHC
jsaddle-webkit2gtk library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-webkitgtk library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-wkwebview library: Interface for JavaScript that works with GHCJS and GHC
jsc library and test: High level interface for webkit-javascriptcore
quickjs-hs library and test: Wrapper for the QuickJS Javascript Engine
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
shine library: Declarative graphics for the browser using GHCJS
shine-examples programs: Examples for the shine package
shine-varying library and tests: FRP interface for shine using the varying package
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities

JSON

aeson library and test: Fast JSON parsing and encoding
aeson-better-errors library: Better error messages when decoding JSON values.
aeson-combinators library, tests and benchmark: Aeson combinators for dead simple JSON decoding
aeson-commit library and test: Parse Aeson data with commitment
aeson-decode library and test: Easy functions for converting from Aeson.Value
aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
aeson-diff library, programs and tests: Extract and apply patches to JSON documents.
aeson-diff-generic library: Apply a json-patch to any haskell datatype.
aeson-filthy library and test: Several newtypes and combinators for dealing with less-than-cleanly JSON input.
aeson-flatten library and test: JSON flatten for Aeson
aeson-gadt-th library, program and test: Derivation of Aeson instances for GADTs
aeson-injector library and test: Injecting fields into aeson values
aeson-native library: Fast JSON parsing and encoding (deprecated)
aeson-optics library: Law-abiding optics for aeson
aeson-options library: Options to derive FromJSON/ToJSON instances
aeson-parsec-picky library: Alternative JSON parser based on Parsec and Aeson
aeson-picker library and test: Tiny library to get fields from JSON format
aeson-prefix library and test: Hiearchical prefixing for aeson
aeson-pretty library and program: JSON pretty-printing library and command-line tool.
aeson-qq library and test: JSON quasiquoter for Haskell
aeson-quick library, test and benchmark: Quick JSON extractions with Aeson
aeson-schemas library, test and benchmark: Easily consume JSON data on-demand with type-safety
aeson-toolkit library and test: A generalization of Aeson over Failure
aeson-typescript library and test: Generate TypeScript definition files from your ADTs
aeson-value-parser library: API for parsing "aeson" JSON tree into Haskell types
aeson-yaml library, program and test: Output any Aeson value as YAML (pure Haskell library)
blaze-json library and tests: tiny library for encoding json
bunz library, program and test: CLI tool to beautify JSON string.
canonical-json library, test and benchmark: Canonical JSON for signing and hashing JSON values
conf-json library and test: read, parse json config
curl-aeson library: Communicate with HTTP service using JSON
data-json-token library, program and test: Json Token datatype
dead-simple-json library: Dead simple JSON parser, with some Template Haskell sugar.
dependent-sum-aeson-orphans library: JSON instances for DSum, DMap, and Some
deriving-aeson library and test: Type driven generic aeson instance customisation
derulo library, program and test: Parse and render JSON simply.
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dhall-fly library, program and test: Translate concourse config from Dhall to YAML
digestive-functors-aeson library and test: Run digestive-functors forms against JSON
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
fcm-client library, program and test: Admin API for Firebase Cloud Messaging
gitson library, tests and benchmark: A document store library for Git + JSON.
highjson library, test and benchmark: Spec based JSON parsing/serialisation
highjson-swagger library and test: Derive swagger instances from highjson specs
highjson-th library and test: Template Haskell helpers for highjson specs
hkd-default library and test: Apply default value for optional field of HKD
hschema-aeson library and test: Describe schemas for your Haskell data types.
HsYAML-aeson library: JSON to YAML Adapter
htoml library, test and benchmark: Parser for TOML files
hw-aeson library and tests: Convenience functions for Aeson
hw-json-lens library, tests and benchmark: Lens for hw-json
jose-jwt tests and benchmark: JSON Object Signing and Encryption Library
json-builder library: Data structure agnostic JSON serialization
json-bytes-builder library, test and benchmark: Direct-to-bytes JSON Builder
JSON-Combinator library: A combinator library on top of a generalised JSON type
json-encoder library: A direct-to-bytes single-pass JSON encoder with a declarative DSL
json-enumerator library: Pure-Haskell utilities for dealing with JSON with the enumerator package. (deprecated)
json-fu library and test: Generic JSON serialization / deserialization
json-incremental-decoder library and test: Incremental JSON parser with early termination and a declarative DSL
json-pointer library: JSON Pointer parsing and interpretation utilities
json-pointer-hasql library and test: JSON Pointer extensions for Hasql
json-qq library: Json Quasiquatation library for Haskell.
json-rpc-client library, programs and test: JSON-RPC 2.0 on the client side.
json-rpc-server library, program and test: JSON-RPC 2.0 on the server side.
json-stream library and tests: Incremental applicative JSON parser
json-tools programs: A collection of JSON tools
json-types library: Basic types for representing JSON
json2 library: Library provides support for JSON.
json2-hdbc library: Support JSON for SQL Database.
json2-types library: Defined JSON data types and function for renders JSON to string.
JsonGrammar library and test: Combinators for bidirectional JSON parsing
jsonifier library, tests and benchmark: Fast and simple JSON encoding toolkit
jsonpath library and test: Library to parse and execute JSONPath
jsons-to-schema library, program and test: JSON to JSON Schema
jsonschema-gen library and test: JSON Schema generator from Algebraic data type
log2json library and program: Turn log file records into JSON.
mcaeson library, program and test: An Aeson parsing toolkit
microaeson library and test: A tiny JSON library with light dependency footprint
one-line-aeson-text library and test: Pretty-printing short Aeson values as text.
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
quick-schema library and test: Slimmed down json schema language and validator
Quickson library: Quick JSON extractions with Aeson
quickson library: Quick JSON extractions with Aeson
record-aeson library and test: Instances of "aeson" classes for the "record" types
safe-json library and test: Automatic JSON format versioning
sajson library, program and test: Fast JSON parsing powered by Chad Austin's sajson library
servant-waargonaut library and test: Servant Integration for Waargonaut JSON Package
stratux library: A library for stratux
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux
text-json-qq library: Json Quasiquatation for Haskell.
tree-sitter-json library: Tree-sitter grammar/parser for JSON
tyro library and test: Type derived JSON parsing using Aeson
vformat-aeson library and test: Extend vformat to Aeson datatypes
waargonaut library and tests: JSON wrangling
xml-to-json-fast library and program: Fast, light converter of xml to json capable of handling huge xml files
yajl-enumerator library: Enumerator-based interface to YAJL, an event-based JSON implementation

JSON5

json5hs library: Serialising to and from JSON5

JSX

reflex-jsx library: Use jsx-like syntax in Reflex

JVM

dbjava library and program: Decompiler Bytecode Java
hs-java library: Java .class files assembler/disassembler
inline-java library, test and benchmark: Java interop via inline Java code in Haskell modules.
j2hs program: j2hs
jarify library and program: Jarification of Haskell sources
java-bridge programs: Bindings to the JNI and a high level interface generator.
java-bridge-extras library: Utilities for working with the java-bridge package.
java-reflect library: Tools for reflecting on Java classes.
jdi library and program: Implementation of Java Debug Interface
jni library and test: Complete JNI raw bindings.
jvm library, test and benchmark: Call JVM methods from Haskell.
jvm-batching library, test and benchmark: Provides batched marshalling of values between Java and Haskell.
jvm-binary library, test and benchmark: A library for reading Java class-files
jvm-streaming library, test and benchmark: Expose Java iterators as streams from the streaming package.
pianola library and test: Remotely controlling Java Swing applications
sparkle library and program: Distributed Apache Spark applications in Haskell

Kerf

herf-time library and test: haskell time manipulation in a 'kerf like' style.

Ketchup

Ketchup library: A super small web framework for those who don't like big and fancy codebases

Keynote

yeamer library, programs and test: Yesod-based server for interactive presentation slides

Keyword Extractor

rake library: Rapid Automatic Keyword Extraction (RAKE)

KML

flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.

Korean

hanspell library, program and test: Korean spell checker

Lalr

platinum-parsing library, program and test: General Framework for compiler development.

Lambda Cube

typerbole library and test: A typesystems library with exaggerated claims

LambdaCalculus

lambda-calculator library, program and tests: A lambda calculus interpreter
lambda-toolbox program: An application to work with the lambda calculus (for learning)

Language

abacate library and test: Parser for a language similar to Cucumber's Gherkin
abt library: Abstract binding trees for Haskell
acl2 library: Writing and calling ACL2 from Haskell.
adtrees library: Modelling, rendering and quantitative analysis on attack defense trees
alga library, program and test: Algorithmic automation for various DAWs
algorithmic-composition-additional library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-basic library: Helps to create experimental music from a file (or its part) and a Ukrainian text.
antimirov library and program: Define the language containment (=subtyping) relation on regulare expressions.
aop-prelude library and test: prelude for Algebra of Programming
applicative-parsec library and test: An applicative parser combinator library
applicative-quoters library: Quasiquoters for idiom brackets and an applicative do-notation
arduino-copilot library and test: Arduino programming in haskell using the Copilot stream DSL
arghwxhaskell program: An interpreter for the Argh! programming language in wxHaskell.
ariadne program and test: Go-to-definition for Haskell
array-forth library, programs and test: A simple interpreter for arrayForth, the language used on GreenArrays chips.
ASN1 library: ASN.1 support for Haskell
AspectAG library: Strongly typed Attribute Grammars implemented using type-level programming.
ast-monad library and test: A library for constructing AST by using do-notation
ast-monad-json library and test: A library for writing JSON
astview program: A GTK-based abstract syntax tree viewer for custom languages and parsers
astview-utils library: Interfacing between hint and astview
aterm-utils library and program: Utility functions for working with aterms as generated by Minitermite
atom library: An EDSL for embedded hard realtime applications.
atomo program: A highly dynamic, extremely simple, very fun programming language.
ats-format program: A source-code formatter for ATS
axel library, program and test: The Axel programming language.
bash library: Bash generation library.
BASIC library: Embedded BASIC
berp library and program: An implementation of Python 3.
bidirectionalization-combined programs: ...
bighugethesaurus library: API wrapper for Big Huge Thesaurus
BiGUL library: The Bidirectional Generic Update Language
binary-literal-qq library: Extends Haskell with binary literals.
birds-of-paradise library and test: Birds of Paradise
bitcoin-scripting library and test: Resources for working with miniscript, and script descriptors
blanks library and test: Fill-in-the-blanks - A library factoring out substitution from ASTs
blip program: Python to bytecode compiler.
BNFC-meta library: Deriving Parsers and Quasi-Quoters from BNF Grammars
bond library, program and test: Bond schema compiler and code generator
bond-haskell-compiler library, program and test: Bond code generator for Haskell
boolsimplifier library: Simplification tools for simple propositional formulas.
bound library and tests: Making de Bruijn Succ Less
bound-extras library and test: ScopeH and ScopeT extras for bound
brain-bleep program: primitive imperative language
brainfuck-tut library and program: A simple BF interpreter.
bricks library and tests: Bricks is a lazy functional language based on Nix.
bricks-internal library and test: ...
bricks-internal-test library: ...
bricks-parsec library and tests: ...
bricks-rendering library and tests: ...
bricks-syntax library and tests: ...
brittany library, program and tests: Haskell source code formatter
broker-haskell library and test: Haskell bindings to Broker, Bro's messaging library.
c-dsl library: A higher level DSL on top of language-c
c0check program: Simple C0 Syntax Check
c0parser library: Simple C0 Parser
c2ats library, program and test: Translate C code into ATS
caledon program: a logic programming language based on the calculus of constructions
call-alloy library and test: A simple library to call Alloy given a specification
camfort library, program and test: CamFort - Cambridge Fortran infrastructure
cao program: CAO Compiler
cap program: Interprets and debug the cap language.
cdeps library, program, test and benchmark: Extract dependencies from C code.
cg program: Parser for categorial grammars.
chalmers-lava2000 library: Hardware description EDSL
cil library: An interface to CIL.
circ library: A Compiler IR Compiler.
clang-compilation-database library and test: JSON Compilation Database Format encoding and decoding
clang-pure library, program and tests: Pure C++ code analysis with libclang
clash library: CAES Language for Synchronous Hardware (CLaSH)
clogparse library: Parse IRC logs such as the #haskell logs on tunes.org
clr-bindings library and test: Glue between clr-host and clr-typed
clr-host library and test: Hosting the Common Language Runtime
clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
clr-marshal library: Marshaling for the clr
clr-typed library and test: A strongly typed Haskell interface to the CLR type system
clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
clua program: C to Lua data wrapper generator
cmake-syntax library and test: Parser for the CMake syntax (CMakeLists.txt and .cmake files)
cmonad library: A library for C-like programming
codec-beam library and test: Erlang VM byte code assembler
codo-notation library: A notation for comonads, analogous to the do-notation for monads.
coformat library, program and test: Generate clang-format config based on some existing code base
combinator-interactive library and program: SKI Combinator interpreter
compilation library: Haskell functionality for quickly assembling simple compilers.
compstrat library: Strategy combinators for compositional data types
config-schema library and test: Schema definitions for the config-value package
config-value library and test: Simple, layout-based value language similar to YAML or JSON
context-free-grammar library and test: Basic algorithms on context-free grammars
control-dsl library and test: An alternative to monads in do-notation
copilot library and programs: A stream DSL for writing embedded C programs.
copilot-c99 library and test: A compiler for Copilot targeting C99.
copilot-cbmc library: Copilot interface to a C model-checker.
copilot-core library: An intermediate representation for Copilot.
copilot-language library: A Haskell-embedded DSL for monitoring hard real-time distributed systems.
copilot-libraries library: Libraries for the Copilot language.
copilot-sbv library: A compiler for CoPilot targeting SBV.
copilot-theorem library: k-induction for Copilot.
core library: External core parser and pretty printer.
core-compiler library and program: compile your own mini functional language with Core
core-haskell program: A subset of Haskell using in UCC for teaching purpose
CoreErlang library: Manipulating Core Erlang source code
cparsing library: A simple C++ parser with preprocessor features. C++ refactorings included.
cryptol library, programs and benchmark: Cryptol: The Language of Cryptography
CSPM-CoreLanguage library: Definition of a CSP core-language.
CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
CSPM-FiringRules library: Firing rules semantic of CSPM
CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
CSPM-Interpreter library: An interpreter for CSPM
cspretty library: AST and pretty printer for CSPm
css library: Minimal monadic CSS DSL.
cube library, program and test: Cubic DSL for 3D printing
curry-base library and test: Functions for manipulating Curry programs
curry-frontend library, program and test: Compile the functional logic language Curry to several intermediate formats
data-reify library, programs and test: Reify a recursive data structure into an explicit graph.
data-reify-cse library: Common Sub-Expression Elimination for graphs generated by Data.Reify.
data-treify library: Reify a recursive data structure into an explicit graph.
deepl library and program: Call DeepL to translate you files
derive-gadt library and programs: Instance deriving for (a subset of) GADTs.
descript-lang library, program and test: Library, interpreter, and CLI for Descript programming language.
desert library, program and test: a simple build tool for OCaml projects
dhall-lex library, test and benchmark: Lexer for the Dhall language
dictparser library, program and test: Parsec parsers for the DICT format produced by dictfmt -t
dino library and tests: A convenient tagless EDSL
discokitty library: DisCoCat implementation.
djinn-ghc library: Generate Haskell code from a type. Bridge from Djinn to GHC API.
djinn-lib library: Generate Haskell code from a type. Library extracted from djinn package.
djinn-th library: Generate executable Haskell code from a type
do-notation library and test: Generalize do-notation to work on monads and indexed monads simultaneously.
do-notation-dsl library and test: An alternative to monads
dobutokO-poetry library and program: ...
dobutokO-poetry-general library: ...
dobutokO-poetry-general-languages library: Helps to order the 7 or less words to obtain somewhat suitable for poetry or music text
dobutokO2 library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
dove library: The Dove verification language.
DrHylo library and program: A tool for deriving hylomorphisms
drmaa library: A Haskell bindings to the DRMAA C library.
ds-kanren library and tests: A subset of the miniKanren language
DTC library: Data To Class transformation.
each library and test: Template Haskell library for writing monadic expressions more easily
Ebnf2ps program: Peter's Syntax Diagram Drawing Tool
ecma262 library and program: A ECMA-262 interpreter library
effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...
egison-pattern-src library and test: Manipulating Egison patterns: abstract syntax, parser, and pretty-printer
egison-pattern-src-haskell-mode library and test: Parser and pretty printer for Egison pattern expressions in Haskell source code
egison-pattern-src-th-mode library and test: Parser and pretty printer for Egison pattern expressions to use with TH
egison-quote library: A quasi quotes for using Egison expression in Haskell code
ehs library and program: Embedded haskell template using quasiquotes.
Elm library, programs and tests: The Elm language module.
elm-bridge library and tests: Derive Elm types and Json code from Haskell types, using aeson's options
elm-build-lib library: Compile Elm code to JS within Haskell
elm-compiler library, programs and test: Values to help with elm-package, elm-make, and elm-lang.org.
elm-core-sources library: Source files for the Elm runtime and standard libraries
elm-get library and program: Tool for sharing and using Elm libraries
elm-package library and program: Package manager for Elm libraries
elm-reactor program: Interactive development tool for Elm programs
elm-server program: Server for developing Elm projects
elm-street library, programs and test: Crossing the road between Haskell and Elm
elm-syntax library and test: Elm syntax and pretty-printing
elsa library, program and test: A tiny language for understanding the lambda-calculus
enchant library, program and test: Binding to the Enchant library
Eq program: Render math formula in ASCII, and perform some simplifications
ewe program: An interpreter for EWE programming language
exception-hierarchy library: Exception type hierarchy with TemplateHaskell
exference library and program: Tool to search/generate (haskell) expressions with a given type
explain program: Show how expressions are parsed
extcore library: Libraries for processing GHC Core
fault-tree library: A fault tree analysis library.
feldspar-language library and tests: A functional embedded language for DSP and parallelism
feldspar-signal library: Signal Processing extension for Feldspar
Feval programs: Evaluation using F-Algebras
first-class-instances library and test: First class typeclass instances
foma library: Simple Haskell bindings for Foma.
formura library and programs: Formura is a simple language to describe stencil computation.
ForSyDe library: ForSyDe's Haskell-embedded Domain Specific Language.
forsyde-deep library and test: ForSyDe's Haskell-embedded Domain Specific Language.
forsyde-shallow library and tests: ForSyDe's Haskell-embedded Domain Specific Language.
forth-hll library: A simple eDSL for generating arrayForth code.
fortran-src library, program and test: Parsers and analyses for Fortran standards 66, 77, 90 and 95.
fortran-src-extras library and test: Common functions and utils for fortran-src.
free-theorems library: Automatic generation of free theorems.
free-theorems-counterexamples library and program: Automatically Generating Counterexamples to Naive Free Theorems
free-theorems-seq library: Taming Selective Strictness
free-theorems-seq-webui program: Taming Selective Strictness
free-theorems-webui programs: CGI-based web interface for the free-theorems package.
freesect program: A Haskell syntax extension for generalised sections
fresh library: Introduce fresh variables into Haskell source code
frp-arduino library: Arduino programming without the hassle of C.
ft-generator program: implementation accompanying a WFLP'19 paper
ftshell program: Shell interface to the FreeTheorems library.
funcons-lambda-cbv-mp program: call-by-value lambda-calculus with meta-programming
funpat library: A generalization of pattern matching
futhark library, program and test: An optimising compiler for a functional, array-oriented language.
Ganymede program: An Io interpreter in Haskell.
gender library and program: Identify a persons gender by their first name
ghc-core-smallstep library and test: A small-step semantics for Core
ghc-justdoit library and test: A magic typeclass that just does it
ghc-options library and program: Utilities for extracting GHC options needed to compile a given Haskell target.
ghc-parser library: Haskell source parser from GHC.
ghc-session library and program: Simplified GHC API
ghc-srcspan-plugin library: Generic GHC Plugin for annotating Haskell code with source location data.
ghci-lib library: A library for interactively evaluating Haskell code.
ghci-websockets library: A websocket server that survives GHCi reloads
gimlh library: Haskell parser for GIML
GLM library, programs and test: Simple Gridlab-D GLM parser and utilities.
global library: Library enabling unique top-level declarations
goldplate program: A lightweight golden test runner
google-search library: EDSL for Google and GMail search expressions
GoogleTranslate library: Interface to Google Translate API
graphql library and test: Haskell GraphQL implementation
graphql-w-persistent library: GraphQL interface middleware for SQL databases.
GroteTrap library and test: Parser and selection library for expression languages.
GTALib library and test: A library for GTA programming
hakaru library, programs and test: A probabilistic programming language
hanspell library, program and test: Korean spell checker
happstack-facebook library and program: A package for building Facebook applications using Happstack
happy-dot library, tests and benchmarks: Parser for dot made with happy.
haquil library and test: A Haskell implementation of the Quil instruction set for quantum computing.
hardware-edsl library: Deep embedding of hardware descriptions with code generation.
harp library: HaRP allows pattern-matching with regular expressions
haskarrow program: A dialect of haskell with order of execution based on dependency resolution
haskell-brainfuck library, program and test: BrainFuck interpreter
haskell-coffee library: Simple CoffeeScript API
haskell-exp-parser library and test: Simple parser parser from Haskell to TemplateHaskell expressions
haskell-generate library and test: Typesafe generation of haskell source code
haskell-holes-th library and test: Infer haskell code by given type.
haskell-lexer library: A fully compliant Haskell 98 lexer.
haskell-lsp-client library and program: A haskell package to build your own Language Server client.
haskell-names library and test: Name resolution library for Haskell
haskell-rules library: A DSL for expressing natural deduction rules in Haskell.
haskell-src library: Support for manipulating Haskell source code
haskell-src-exts library and test: Manipulating Haskell source: abstract syntax, lexer, parser, and pretty-printer
haskell-src-exts-observe library: Observable orphan instances for haskell-src-exts
haskell-src-exts-prisms library: Prisms with newtype wrappers for haskell-src-exts
haskell-src-exts-qq library and test: A quasiquoter for haskell-src-exts.
haskell-src-exts-sc library and program: Pretty print haskell code with comments
haskell-src-exts-util library: Helper functions for working with haskell-src-exts trees
haskell-src-meta library and tests: Parse source to template-haskell abstract syntax.
haskell-src-meta-mwotton library: Parse source to template-haskell abstract syntax.
haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
haskell-tools-ast library: Haskell AST for efficient tooling
haskell-tools-ast-fromghc library: Creating the Haskell-Tools AST from GHC's representations
haskell-tools-ast-gen library: Facilities for generating new parts of the Haskell-Tools AST
haskell-tools-ast-trf library: Conversions on Haskell-Tools AST to prepare for refactorings
haskell-tools-backend-ghc library: Creating the Haskell-Tools AST from GHC's representations
haskell-tools-builtin-refactorings library and tests: Refactoring Tool for Haskell
haskell-tools-cli library, programs, test and benchmark: Command-line frontend for Haskell-tools Refact
haskell-tools-daemon library, program and test: Background process for Haskell-tools that editors can connect to.
haskell-tools-debug library and program: Debugging Tools for Haskell-tools
haskell-tools-demo library, program and test: A web-based demo for Haskell-tools Refactor.
haskell-tools-experimental-refactorings library and test: Refactoring Tool for Haskell
haskell-tools-prettyprint library: Pretty printing of Haskell-Tools AST
haskell-tools-refactor library and test: Refactoring Tool for Haskell
haskell-tools-rewrite library and test: Facilities for generating new parts of the Haskell-Tools AST
haskell-type-exts library: A type checker for Haskell/haskell-src-exts
haskell-typescript library: Simple TypeScript API
haskellish library: For parsing Haskell-ish languages
haskelm library, program and test: Elm to Haskell translation
haskeme library and program: Compiler from I- to S-Expressions for the Scheme Programming Language
haspell library: Haskell bindings to aspell
hbf library, programs, tests and benchmark: An optimizing Brainfuck compiler and evaluator
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
heap-console library and test: interactively inspect Haskell values at runtime
her-lexer library: A lexer for Haskell source code.
her-lexer-parsec library: Parsec frontend to "her-lexer" for Haskell source code.
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
hermit-syb library: HERMIT plugin for optimizing Scrap-Your-Boilerplate traversals.
hexpr library: A framework for symbolic, homoiconic languages.
hfmt library, program and tests: Haskell source code formatter
hgrep library and program: Search Haskell source code from the command line
hierarchical-exceptions library: Template Haskell functions to easily create exception hierarchies
hindley-milner library and test: Template for Hindley-Milner based languages
hint library and test: Runtime Haskell interpreter (GHC API wrapper)
hint-server library: A server process that runs hint.
hinter library and test: Runtime Haskell interpreter (GHC API wrapper)
hinterface library and test: Haskell / Erlang interoperability library
HJavaScript library: HJavaScript is an abstract syntax for a typed subset of JavaScript.
HJScript library: HJScript is a Haskell EDSL for writing JavaScript programs.
HJVM library and test: A library to create a Java Virtual Machine and manipulate Java objects
hnock library, program and test: A Nock interpreter.
ho-rewriting library and test: Generic rewrite rules with safe treatment of variables and binders
homplexity library, program and test: Haskell code quality tool
hoop library and test: Object-Oriented Programming in Haskell
hopencc library and test: Haskell binding to libopencc
hpython library, program, test and benchmark: Python language tools
hruby library and test: Embed a Ruby intepreter in your Haskell program !
hs-gen-iface program: Utility to generate haskell-names interface files
hs-inspector library and test: Haskell source code analyzer
hs-pattrans library, program and test: DSL for musical patterns and transformation, based on contravariant functors.
hs2ats library, program, test and benchmark: Create ATS types from Haskell types
hs2dot program: Generate graphviz-code from Haskell-code.
hscolour library and program: Colourise Haskell code.
hse-cpp library: Preprocess+parse haskell code
hsnock library, program and test: Nock 5K interpreter.
hsp library: Haskell Server Pages is a library for writing dynamic server-side web pages.
HsParrot library: Haskell integration with Parrot virtual machine
HsPerl5 library: Haskell interface to embedded Perl 5 interpreter
hssqlppp library and test: SQL parser and type checker
hssqlppp-th library and test: hssqlppp extras which need template-haskell
hswip library: embedding prolog in haskell
hsx library and program: HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code.
hsx2hs library and program: HSX (Haskell Source with XML) allows literal XML syntax in Haskell source code.
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
hubris library and program: Support library for Hubris, the Ruby <=> Haskell bridge
hunspell-hs library, test and benchmark: Hunspell thread-safe FFI bindings for spell checking.
husk-scheme library and programs: R5RS Scheme interpreter, compiler, and library.
husk-scheme-libs library: Extra libraries for the husk Scheme platform.
hwhile library, program and test: An implementation of Neil D. Jones' While language
hydrogen-cli program: Hydrogen Data
hydrogen-cli-args library: Hydrogen Command Line Arguments Parser
hydrogen-data library: Hydrogen Data
hydrogen-multimap library: Hydrogen Multimap
hydrogen-parsing library: Hydrogen Parsing Utilities
hydrogen-prelude library: Hydrogen Prelude
hydrogen-prelude-parsec library: Hydrogen Prelude /w Parsec
hydrogen-syntax library: Hydrogen Syntax
hydrogen-util library: Hydrogen Tools
hydrogen-version library: Hydrogen Version Type
ihs program: Interpolated Haskell
imperative-edsl library and test: Deep embedding of imperative programs with code generation
imperative-edsl-vhdl library: Deep embedding of VHDL programs with code generation.
ImperativeHaskell library: A library for writing Imperative style haskell.
imprevu library and test: Reactive programming language based on a DSL
imprevu-happstack library and test: Imprevu support for Happstack
improve library: An imperative, verifiable programming language for high assurance applications.
inch program and test: A type-checker for Haskell with integer constraints
indexed-do-notation library: Do notation for indexed monads
indian-language-font-converter library: Indian Language Font Converter
indigo library, program and test: Convenient imperative eDSL over Lorentz.
intensional-datatys library, program and test: A GHC Core plugin for intensional datatype refinement checking
interpol library, program and test: GHC preprocessor and library to enable variable interpolation in strings
intrinsic-superclasses library: A quasiquoter for better instance deriving and default methods
invertible-grammar library: Invertible parsing combinators framework
ion library and program: EDSL for concurrent, realtime, embedded programming on top of Ivory
ipa library and test: Internal Phonetic Alphabet (IPA)
ivory library: Safe embedded C programming.
ivory-artifact library: Manage additional data files during Ivory compilation.
ivory-avr-atmega328p-registers library: Ivory register bindings for the Atmega328p
ivory-backend-c library: Ivory C backend.
ivory-bitdata library and program: Ivory bit-data support.
ivory-examples program: Ivory examples.
ivory-hw library: Ivory hardware model (STM32F4).
ivory-opts library: Ivory compiler optimizations.
ivory-serialize library: Serialization library for Ivory.
ivory-stdlib library: Ivory standard library.
ixdopp program: A preprocessor for expanding "ixdo" notation for indexed monads
jarfind library and program: Tool for searching java classes, members and fields in classfiles and JAR archives
Javasf program: A utility to print the SourceFile attribute of one or more Java class files.
Javav program: A utility to print the target version of Java class files.
jdi library and program: Implementation of Java Debug Interface
jmacro library and programs: QuasiQuotation library for programmatic generation of Javascript code.
js-good-parts library: Javascript: The Good Parts -- AST & Pretty Printer
JsContracts library and program: Design-by-contract for JavaScript
jsmw library: Javascript Monadic Writer base package.
json-python library: Call python inline from haskell
JsonGrammar library and test: Combinators for bidirectional JSON parsing
jvm-binary library, test and benchmark: A library for reading Java class-files
jvm-parser library: A parser for JVM bytecode files
kansas-lava library and programs: Kansas Lava is a hardware simulator and VHDL generator.
kbq-gu programs: Rpoku spoken word programming language
kempe library, program, tests and benchmark: Kempe compiler
kuifje library: A Quantitative Information Flow aware programming language.
kure library: Combinators for Strategic Programming
kure-your-boilerplate library: Generator for Boilerplate KURE Combinators
lambda-calculator library, program and tests: A lambda calculus interpreter
lambda-calculus-interpreter library, program and test: Lambda Calculus interpreter
lambda-placeholders library: A library to emulate laceholders similar to Scala.
lambdaBase library and test
LambdaCalculator program: A basic lambda calculator with beta reduction and a REPL
lambdaLit program: ...
LambdaPrettyQuote library and test: Quasiquoter, and Arbitrary helpers for the lambda calculus.
lang library: A Lisp
language-asn library: ASN.1 encoding and decoding
language-asn1 library, program and test: Parsing of ASN1 definitions
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
language-bash library and test: Parsing and pretty-printing Bash shell scripts
language-boogie library and programs: Interpreter and language infrastructure for Boogie.
language-c library and test: Analysis and generation of C code
language-c-comments library: Extracting comments from C code
language-c-inline library and test: Inline C & Objective-C code in Haskell for language interoperability
language-c-quote library and test: C/CUDA/OpenCL/Objective-C quasiquoting library.
language-c99 library: An implementation of the C99 AST that strictly follows the standard.
language-c99-simple library: C-like AST to simplify writing C99 programs.
language-c99-util library: Utilities for language-c99.
language-cil library: Manipulating Common Intermediate Language AST
language-csharp library: C# source code manipulation
language-css library: CSS 2.1 syntax
language-dart library and test: Manipulating Dart source: abstract syntax and pretty-printer
language-dickinson library, program, test and benchmark: A language for generative literature
language-dot library, program and test: A library for the analysis and creation of Graphviz DOT files
language-ecmascript library and test: JavaScript parser and pretty-printer library
language-ecmascript-analysis library: JavaScript static analysis library.
language-eiffel library: Parser and pretty printer for the Eiffel language.
language-fortran library: Fortran lexer and parser, language support, and extensions.
language-gcl library: Something similar to Dijkstra's guarded command language
language-glsl library, program and test: GLSL abstract syntax tree, parser, and pretty-printer
language-go library: A library for analysis and synthesis of Go code.
language-guess library: Guess at which language a text is written in using trigrams.
language-java library and test: Java source manipulation
language-java-classfile library: Parser for Java .class files
language-javascript library and test: Parser for JavaScript
language-js library and test: javascript parser for es6 and es7.
language-kort library and test: Parser and serializer for the Kort information language.
language-lua library, test and benchmark: Lua parser and pretty-printer
language-lua-qq library and test: Initial project template from stack
language-lua2 library, programs and test: Lua parser and pretty printer
language-mixal library and program: Parser, pretty-printer, and AST types for the MIXAL assembly language
language-Modula2 library, program and test: Parser, pretty-printer, and more for the Modula-2 programming language
language-ninja library, programs and tests: A library for dealing with the Ninja build language.
language-nix library: Data types and functions to represent the Nix language
language-oberon library, program and test: Parser, pretty-printer, and more for the Oberon programming language
language-objc library: Analysis and generation of Objective C code
language-ocaml library and test: Language tools for manipulating OCaml programs in Haskell
language-openscad library and program: A simple parser for OpenSCAD
language-pig library and test: Pig parser in haskell.
language-python library: Parsing and pretty printing of Python code.
language-python-colour program: Generate coloured XHTML for Python code.
language-python-test programs: testing code for the language-python library
language-qux library: Utilities for working with the Qux language
language-rust library, tests and benchmarks: Parsing and pretty printing of Rust code
language-sally library: AST and pretty printer for Sally
language-sh library: A package for parsing shell scripts
language-slice library and test: AST and parser for the ZeroC Slice language (Specification language for ICE)
language-sqlite library: Full parser and generator for SQL as implemented by SQLite3
language-sygus library and test: A parser and printer for the SyGuS 2.0 language.
language-thrift library and test: Parser and pretty printer for the Thrift IDL format.
language-tl library and test: A Parser for the Type Language
language-typescript library: A library for working with TypeScript Definition files
language-vhdl library: VHDL AST and pretty printer in Haskell.
language-webidl library and test: Parser and Pretty Printer for WebIDL
layout-rules library: A collection of different layout implementations
LC3 program: LC-3 virtual machine
lens-toml-parser library and tests: Lenses for toml-parser
lexer-applicative library and test: Simple lexer based on applicative regular expressions
lhs2tex program: Preprocessor for typesetting Haskell sources with LaTeX
lhs2TeX-hl program: Literate highlighter preprocessor for lhs2tex
LibClang library: Haskell bindings for libclang (a C++ parsing library)
libconfig library and test: Haskell bindings to libconfig
lift-generics library and test: GHC.Generics-based Language.Haskell.TH.Syntax.lift implementation
linkcore program: Combines multiple GHC Core modules into a single module
liquid-base library: Drop-in base replacement for LiquidHaskell
liquid-bytestring library: LiquidHaskell specs for the bytestring package
liquid-containers library: LiquidHaskell specs for the containers package
liquid-fixpoint library, program and tests: Predicate Abstraction-based Horn-Clause/Implication Constraint Solver
liquid-ghc-prim library: Drop-in ghc-prim replacement for LiquidHaskell
liquid-parallel library: LiquidHaskell specs for the parallel package
liquid-platform programs: A battery-included platform for LiquidHaskell
liquid-prelude library: General utility modules for LiquidHaskell
liquid-vector library: LiquidHaskell specs for the vector package
liquidhaskell library, programs and tests: Liquid Types for Haskell
located library: Source location helpers
lojban library and program: Useful utilities for the Lojban language
lojbanParser library and program: lojban parser
lojbanXiragan library and program: lojban to xiragan
lojysamban program: Prolog with lojban
lol-calculus program: Calculus for LOL (λω language).
lol-typing library and test: Type inferencer for LOL (λω language)
lorentz library: EDSL for the Michelson Language
LslPlus program: An execution and testing framework for the Linden Scripting Language (LSL)
lss library and test: ...
ltl library: Using linear temporal logic (LTL) to verify embedded software and hardware.
lua-bc library: Lua bytecode parser
luka library: Simple ObjectiveC runtime binding
luthor library and tests: Tools for lexing and utilizing lexemes that integrate with Parsec.
MagicHaskeller library and programs: Automatic inductive functional programmer by systematic search
mathista library, program and test: A small programming language for numerical computing
maude library: An interface to the Maude rewriting system.
mcm programs: Machine Configuration Manager
mcmc-synthesis library: MCMC applied to probabilistic program synthesis
mecha library and program: A constructive solid geometry (CSG) modeling language.
melody library, program and test: A functional scripting language
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
mi library: Multiple Instance for Haskell
MicrosoftTranslator library: Interface for Microsoft Translator
mida library, program and test: Language for algorithmic generation of MIDI files
mikrokosmos program and test: Lambda calculus interpreter
miniforth library and program: Miniature FORTH-like interpreter
ministg program: an interpreter for an operational semantics for the STG machine.
ml-w library and program: Minimal ML language to to demonstrate the W type infererence algorithm.
mmsyn2-array library: ...
mmsyn6ukr library and program: A musical instrument synthesizer or a tool for Ukrainian language listening
mmsyn6ukr-array library and program: A musical instrument synthesizer or a tool for Ukrainian language listening
mmsyn7h library and program: Produces a sound recording specified by the Ukrainian text.
mmsyn7s library and program: ...
mmsyn7ukr library and program: ...
mmsyn7ukr-common library: Some common for mmsyn7ukr and mmsyn7ukr-array functionality using SoX.
modelicaparser library and tests: A parser for the modelica language
modulespection library: Template Haskell for introspecting a module's declarations
modulo library and program: Modular C code generator
morley library, program and test: Developer tools for the Michelson Language
morley-upgradeable library, program and test: Upgradeability infrastructure based on Morley.
morloc library, program and test: A multi-lingual, typed, workflow language
msgpack-idl library, program and test: An IDL Compiler for MessagePack
msh library: Object-Oriented Programming in Haskell
mueval library and programs: Safely evaluate pure Haskell expressions
mulang library, program and test: An intermediate language designed to perform advanced code analysis
NanoProlog library and program: Very small interpreter for a Prolog-like language
naver-translate library: Interface to Naver Translate
netlist library: Netlist AST
netlist-to-vhdl library: Convert a Netlist AST to VHDL
nirum library, program and tests: IDL compiler and RPC/distributed object framework for microservices
nix-eval library and test: Evaluate Haskell expressions using Nix to get packages
nom library and tests: Name-binding & alpha-equivalence
nominal library: Binders and alpha-equivalence made easy
Nomyx-Language library: Language to express rules for Nomic
nomyx-language library: Language to express rules for Nomic
nomyx-library library: Library of rules for Nomyx
Nomyx-Rules library: Language to express rules for Nomic
ntha library, program and test: A tiny statically typed functional programming language.
NXTDSL library and program: Generate NXC Code from DSL
oberon0 library and programs: Oberon0 Compiler
Obsidian library: Embedded language for GPU Programming
octopus library and program: Lisp with more dynamism, more power, more simplicity.
omega program: A purely functional programming language and a proof system
operational-alacarte library and test: A version of Operational suitable for extensible EDSLs
optimusprime program: A supercompiler for f-lite
Ordinary library, program and test: A Programming Language in Construction
org2anki program: Basic org to anki exporter
pads-haskell library and tests: PADS data description language for Haskell.
paragon library and program: Paragon
Paraiso library and test: a code generator for partial differential equations solvers.
pattern-matcher library and test: A library for compiling pattern-matching to decision trees
pec library and programs: pec embedded compiler
peggy library and program: The Parser Generator for Haskell
pgf2 library: Bindings to the C version of the PGF runtime
phonetic-languages-common library: A generalization of the uniqueness-periods-vector-common package.
phonetic-languages-constaints library: Constraints to filter the needed permutations
phonetic-languages-constraints library: Constraints to filter the needed permutations
phonetic-languages-constraints-array library: Constraints to filter the needed permutations
phonetic-languages-examples library and programs: A generalization of the uniqueness-periods-vector-examples functionality.
phonetic-languages-general library: A generalization of the uniqueness-periods-vector-general functionality.
phonetic-languages-permutations library: Commonly used versions of the phonetic-languages-common package
phonetic-languages-permutations-array library: Permutations and universal set related functions for the phonetic-languages series
phonetic-languages-phonetics-basics library and program: A library for working with generalized phonetic languages usage.
phonetic-languages-plus library and program: Some common shared between different packages functions.
phonetic-languages-properties library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text (usually, ...
phonetic-languages-simplified-base library: ...
phonetic-languages-simplified-common library: A simplified version of the phonetic-languages-functionality
phonetic-languages-simplified-examples-array library and programs: Helps to create Ukrainian texts with the given phonetic properties.
phonetic-languages-simplified-examples-common library: Some commonly used by phonetic-languages-simplified* series functions.
phonetic-languages-simplified-lists-examples library and programs: Simplified and somewhat optimized version of the phonetic-languages-examples.
phonetic-languages-simplified-properties-array library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-simplified-properties-lists library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-simplified-properties-lists-double library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-ukrainian library: Prepares Ukrainian text to be used as a phonetic language text
phonetic-languages-ukrainian-array library: Prepares Ukrainian text to be used as a phonetic language text
phonetic-languages-vector library: A generalization of the functionality of the uniqueness-periods-vector package.
pisigma library and program: A dependently typed core language
Plural library: Pluralize English words
plural library and test: Pluralize
polysemy library, test and benchmark: Higher-order, low-boilerplate free monads.
polyseq library and program: Taming Selective Strictness
portable-template-haskell-lens library: Lenses for the AST of Template Haskell 2.11 and Template Haskell < 2.11
powerpc library: Tools for PowerPC programs.
prelude-edsl library: An EDSL-motivated subset of the Prelude
preprocess-haskell library: Preprocess Haskell Repositories.
preprocessor-tools library: A framework for extending Haskell's syntax via quick-and-dirty preprocessors
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
prolog library: A Prolog interpreter written in Haskell.
prolog-graph program: A command line tool to visualize query resolution in Prolog.
prolog-graph-lib library: Generating images of resolution trees for Prolog queries.
prosidy library and test: A simple language for writing documents.
prosidyc library: A DSL for processing Prosidy documents.
Pugs program: A Perl 6 Implementation
purescript library, program and test: PureScript Programming Language Compiler
purescript-ast library: PureScript Programming Language Abstract Syntax Tree
purescript-cst library and test: PureScript Programming Language Concrete Syntax Tree
purescript-tsd-gen library and program: TypeScript Declaration File (.d.ts) generator for PureScript
pyffi library: Call python inline from haskell
pyfi library: Call python inline from haskell
quenya-verb library and program: Quenya verb conjugator
r-glpk-phonetic-languages-ukrainian-durations library and program: Can be used to calculate the durations of the approximations of the Ukrainian phonemes.
rail-compiler-editor library, programs and test: Compiler and editor for the esolang rail.
raw-feldspar library and tests: Resource-Aware Feldspar
readpyc program: Read and pretty print Python bytecode (.pyc) files.
really-simple-xml-parser library: A really simple XML parser
recursors library and test: Auto-generate final encodings and their isomorphisms using Template Haskell
refinery library and test: Toolkit for building proof automation systems
reflex-jsx library: Use jsx-like syntax in Reflex
register-machine-typelevel library: A computationally universal register machine implementation at the type-level
reorder-expression library and test: Reorder expressions in a syntax tree according to operator fixities.
resin library: High performance variable binders
rope library: Tools for manipulating fingertrees of bytestrings with optional annotations
rope-utf16-splay library and test: Ropes optimised for updating using UTF-16 code units and row/column pairs.
runtime-arbitrary library: Runtime generation of Arbitrary values
SCRIPTWriter library and program: ESCRIPT: a human friendly language for programming Bitcoin scripts
seal-module library: Template Haskell support for global configuration data
semantic library: Framework and service for analyzing and diffing untrusted code.
sexp library, program and test: S-Expression parsing/printing made fun and easy
sexp-grammar library, test and benchmark: Invertible grammar combinators for S-expressions
shady-gen library: Functional GPU programming - DSEL & compiler
shake-dhall library and test: Dhall dependencies
she library and program: A Haskell preprocessor adding miscellaneous features
shentong program: A Haskell implementation of the Shen programming language
shivers-cfg library: Implementation of Shivers' Control-Flow Analysis
shortcut library
show library: 'Show' instances for Lambdabot
shplit program: A Haskell pattern splitter with emacs attachments
sifflet library, program and test: Simple, visual, functional language for learning about recursion.
sifflet-lib library: Library of modules shared by sifflet and its tests and its exporters.
signals library: Synchronous signal processing for DSLs.
simple-c-value library and test: A simple C value type
simple-eval library and program: Evaluate a Text to an Integer: "1 + 1" -> 2
simple-ltl library, test and benchmark: A simple LTL checker
simple-sql-parser library, programs and test: A parser for SQL.
sized-types library, program and test: Sized types in Haskell using the GHC Nat kind.
slot-lambda library: Write lambdas without naming the parameters.
smt-lib library: Parsing and printing SMT-LIB.
smt2-parser library and test: A Haskell parser for SMT-LIB version 2.6
snaplet-lss library and test: Lexical Style Sheets - Snap Web Framework adaptor.
SNet library: Declarative coördination language for streaming networks.
snmp library: SNMP protocol library
specialize-th library and test: Create specialized types from polymorphic ones using TH
spir-v library: Some utilities for reading and writing SPIR-V files
staticanalysis library: Reusable static analysis interfaces and modules.
Strafunski-Sdf2Haskell program: Converts SDF to Haskell
stylish-cabal library, program and tests: Format Cabal files
stylish-haskell library, program and test: Haskell code prettifier
stylist library and test: Apply CSS styles to a document tree.
subleq-toolchain library, program and test: Toolchain of subleq computer.
sugarhaskell programs: Library-based syntactic extensibility for Haskell
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities
surjective library: An output coverage checker
swearjure program: Clojure without alphanumerics.
symantic library: Library for Typed Tagless-Final Higher-Order Composable DSL
symantic-grammar library and test: Library for symantic grammars.
symantic-lib library and test: Symantics for common types.
synt library, program and test: Similar code analysis.
syntactic library, test and benchmark: Generic representation and manipulation of abstract syntax
syntax-trees library: Convert between different Haskell syntax trees.
syntax-trees-fork-bairyn library: Convert between different Haskell syntax trees. Bairyn's fork.
tal library: An implementation of Typed Assembly Language (Morrisett, Walker, Crary, Glew)
tempi library: For representing musical tempi
tempus program: Interpreter for the FRP language Tempus
tensor-safe library and program: Create valid deep neural network architectures
termination-combinators library: Termination combinators for forcing non-terminating algorithms to terminate
tersmu library and programs: A semantic parser for lojban
text-register-machine library: A Haskell implementation of the 1# Text Register Machine
th-alpha library and test: Alpha equivalence for TH Exp
th-bang-compat library: Compatibility for bang-type template
th-constraint-compat library: Compatibility for type constraint template
th-data-compat library: Compatibility for data definition template of TH
th-dict-discovery library: Automatically discover available dictionaries at compile time.
th-instances library and test: A place to collect orphan instances for Template Haskell
th-lift library and test: Derive Template Haskell's Lift class for datatypes.
th-reify-compat library: Compatibility for the result type of TH reify
th-strict-compat library: Compatibility shim for Bang and Strict in Template Haskell.
thih library and program: Typing Haskell In Haskell
to-haskell library: A type class and some utilities for generating Haskell code.
toml-parser library: Parser for the TOML configuration language
tptp library and tests: Parser and pretty printer for the TPTP language
transformations library and program: Generic representation of tree transformations
trhsx library: Deprecated
TTTAS library: Typed Transformations of Typed Abstract Syntax
turkish-deasciifier library, program and test: Haskell port of Deniz Yuret's Turkish deasciifier.
type-of-html library, tests and benchmarks: High performance type driven html generation.
type-of-html-static library and test: Optimize static parts of type-of-html.
type-settheory library: Sets and functions-as-relations in the type system
type-sub-th library and test: Substitute types for other types with Template Haskell
type-tree library and test: Tree representations of datatypes
typescript-docs program: A documentation generator for TypeScript Definition files
ukrainian-phonetics-basic library: A library to work with the basic Ukrainian phonetics and syllable segmentation.
ukrainian-phonetics-basic-array library: A library to work with the basic Ukrainian phonetics and syllable segmentation.
unbound library and test: Generic support for programming with names and binders
unbound-generics library, test and benchmark: Support for programming with names and binders using GHC Generics
unbound-kind-generics library: Support for programming with names and binders using kind-generics
unification-fd library: Simple generic unification algorithms.
unipatterns library: Helpers which allow safe partial pattern matching in lambdas
uniqueness-periods library: Can be used to produce the 'uniquenessPeriods' function and related functionality.
uniqueness-periods-general library: Can be used to produce the similar to 'String.Ukrainian.UniquenessPeriods' functions.
uniqueness-periods-vector library: ...
uniqueness-periods-vector-common library: Generalization of the dobutokO-poetry-general package functionality
uniqueness-periods-vector-examples library and programs: Usage examples for the uniqueness-periods-vector series of packages
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-general library: Some kind of the optimization approach to data inner structure.
uniqueness-periods-vector-properties library: Metrices for the maximum element for the uniqueness-periods-vector packages family.
universe-th library and test: Construct a Dec's ancestor list.
unlit library and program: Tool to convert literate code between styles or to code.
unpacked-containers library and program: Unpacked containers via backpack
urldisp-happstack library: Simple, declarative, expressive URL routing -- on happstack.
URLT library: Library for maintaining correctness of URLs within an application.
valid-names library: Valid operator/module characters
verifiable-expressions library: An intermediate language for Hoare logic style verification.
verilog library: Verilog preprocessor, parser, and AST.
vhdl library: VHDL AST and pretty printer
web-routes library and test: portable, type-safe URL routing
web-routes-boomerang library: Use boomerang for type-safe URL parsers/printers
web-routes-generics library: portable, type-safe URL routing
web-routes-happstack library: Adds support for using web-routes with Happstack
web-routes-hsp library: Adds XMLGenerator instance for RouteT monad
web-routes-mtl library: Extends web-routes with mtl-based MonadIO / MonadTrans RouteT instances
web-routes-regular library: portable, type-safe URL routing
web-routes-th library and test: Support for deriving PathInfo using Template Haskell
web-routes-transformers library: Extends web-routes with some transformers instances for RouteT
web-routes-wai library: Library for maintaining correctness of URLs within an application.
WebBits library: JavaScript analysis tools
WebBits-Html library: JavaScript analysis tools
WebBits-multiplate library: A Multiplate instance for JavaScript.
webidl library and programs: Parser and Pretty Printer for the Web IDL Language
while-lang-parser library: Parser for the While language.
Wired library: Wire-aware hardware description
words library: Cross-platform access to a list of words
XmlHtmlWriter library: A library for writing XML and HTML
yabi-muno library and program: Yet Another Brainfuck Interpreter
z3-encoding library and test: High-level assertion encoding to Z3 solver
zabt library and test: Simple-minded abstract binding trees
zasni-gerna library: lojban parser (zasni gerna)
zeroth library and program: ZeroTH - remove unnecessary TH dependencies

Language Tools

oden-go-packages library: Provides Go package metadata.

Language.Nix

nix-tree program and test: Interactively browse a Nix store paths dependencies
nixdu program: Interactively browse a Nix store paths dependencies

Languages

Frank program: An experimental programming language with typed algebraic effects
simple-pascal library and program: Simplified Pascal language to SSVM compiler
simple-stacked-vm library and program: Simple stacked virtual machine: assembler, disassembler, bytecode interpreter
why3 library: Haskell support for the Why3 input format.

LaTeX

haskintex library and program: Haskell Evaluation inside of LaTeX code.
HaTeX library and tests: The Haskell LaTeX library.
hatex-guide library: HaTeX User's Guide.
simplex program: A simple markup language that translates to LaTeX
smallcaps library, programs and tests: Flatten camel case text in LaTeX files
texbuilder program: View your latex output while editing

Lazy

promises library: Lazy demand-driven promises

Learning Environments

gym-http-api library and program: REST client to the gym-http-api project

Learning Haskell

antiprimes library and test: Initial project template from stack

Lens

cornea library and test: classy optical monadic state
generic-lens library and tests: Generically derive traversals, lenses and prisms.
generic-lens-core library: Generically derive traversals, lenses and prisms.
generic-lens-labels library: GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics
generic-lens-lite library and test: Monomorphic field lens like with generic-lens
generic-optics library and tests: Generically derive traversals, lenses and prisms.
generic-optics-lite library and test: Monomorphic field opics like with generic-lens
hexml-lens library and tests: Lenses for the hexml package
http-client-lens library: Optics for http-client
lens-named library: Helper for use with lens
minilens library: A minimalistic lens library, providing only the simplest, most basic lens functionality.
persistent-template-classy library and test: Generate classy lens field accessors for persistent models
ral-lens library: Length-indexed random access lists: lens utilities.
text-lens library and test: Lenses for operating over text
these-lens library: Lenses for These
vec-lens library: Vec: length-indexed (sized) list: lens support

Lenses

app-lens library and benchmarks: applicative (functional) bidirectional programming beyond composition chains
bff-mono library: "Bidirectionalization for Free" for Monomorphic Transformations
BiGUL library: The Bidirectional Generic Update Language
concise library and test: Utilities for Control.Lens.Cons
data-lens-light library: Simple lenses, minimum dependencies
extended-containers-lens library: lens instances for extended-containers
fclabels library, test and benchmark: First class accessor labels implemented as lenses.
haskell-time-range library and test: Some useful wrappers and functions for building time ranges
indexed-profunctors library: Utilities for indexed profunctors
lens library, tests and benchmarks: Lenses, Folds and Traversals
lens-accelerate library: Instances to mix lens with Accelerate
lens-action library: Monadic Getters and Folds
lens-core library: A placeholder for a future lens core package.
lens-datetime library: Lenses for Data.Time.* types
lens-errors library and test: Error handling in lens chains
lens-family library: Lens Families
lens-family-core library: Haskell 2022 Lens Families
lens-properties library: QuickCheck properties for lens
lens-simple library: simplified import of elementary lens-family combinators
lens-toml-parser library and tests: Lenses for toml-parser
lens-typelevel library: Type-level lenses using singletons
lenz library: Van Laarhoven lenses
lenz-mtl library: mtl operations with Van Laarhoven lenses
lenz-template library: Van Laarhoven lens templates
mezzolens library: Pure Profunctor Functional Lenses
microlens library: A tiny lens library with no dependencies
microlens-contra library: True folds and getters for microlens
microlens-each library: 'each' for microlens
microlens-ghc library: microlens + array, bytestring, containers, transformers
microlens-mtl library: microlens support for Reader/Writer/State from mtl
microlens-platform library: microlens + all batteries included (best for apps)
microlens-th library and test: Automatic generation of record lenses for microlens
multiplate library: Lightweight generic library for mutually recursive data types.
mutable-lens library, tests and benchmark: Interoperate mutable references with regular lens
optics library, test and benchmarks: Optics as an abstract interface
optics-core library: Optics as an abstract interface: core definitions
optics-extra library: Extra utilities and instances for optics-core
optics-th library and test: Optics construction using TemplateHaskell
optics-vl library: Utilities for compatibility with van Laarhoven optics
polysemy-optics library: Optics for Polysemy.
profunctor-optics library and program: A compact optics library compatible with the typeclasses in profunctors.
prolens library and tests: Profunctor-based lightweight implementation of optics
putlenses library: Put-based lens library
sliceofpy library, program and test: Python-ish slicing traversals for Haskell.
smallcheck-lens library: SmallCheck properties for lens
split-morphism library and test: Split Epimorphisms and Monomorphisms
strict-containers-lens library: Strict containers - Lens instances
strict-lens library: Lenses for types in strict package
tables library and test: In-memory storage with multiple keys using lenses and traversals
tasty-lens library and test: Tasty TestTrees for Lens validation
template-haskell-optics library: Optics for template-haskell types
vitrea library: Profunctor optics via the profunctor representation theorem.
with-index library: A tiny library for composing indexed traversals

Lexer

language-ats library, test and benchmark: Parser and pretty-printer for ATS.
platinum-parsing library, program and test: General Framework for compiler development.

Lexers

dhall-lex library, test and benchmark: Lexer for the Dhall language

Lib

i3ipc library and test: A type-safe wrapper around i3's IPC
postgres-embedded library and test: Library for easily running embedded PostgreSQL server for tests.

Library

aeson-default library and test: Apply default value to FromJSON instacnes' Maybe fields
antlr-haskell library and tests: A Haskell implementation of the ANTLR top-down parser generator
asset-bundle library: A build-time Cabal library that bundles executables with assets
backstop library, program and test: Backstop a target directory by source directories
bglib library and program: Implementation of the BGAPI serial protocol
boots library and test: IoC Monad in Haskell
boots-app library and program: Factory for quickly building an application
boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
byteunits library and test: Human friendly conversion between byte units (KB, MB, GB...)
c-mosquitto library, program and test: Simpe mosquito MQTT binding able to work with the Amazons IoT
cabal-auto-expose library: Build time library that autodetects exposed modules
cfenv library and test: A library getting the environment when running on Cloud Foundry
Condor library, program and test: Information retrieval library
condor library, program and test: Information retrieval library
double-extra library: Missing presentations for Double numbers (fixed, scientific etc.)
easytensor-vulkan library: Use easytensor with vulkan-api.
error-or library: Composable, hierarchical errors.
error-or-utils library: Utilities using ErrorOr datatype
fcm-client library, program and test: Admin API for Firebase Cloud Messaging
Gamgine library: Some kind of game library or set of utilities.
Gifcurry library and programs: GIF creation utility.
git-config library and test: A simple parser for Git configuration files
glider-nlp library and test: Natural Language Processing library
haskell-src-exts-sc library and program: Pretty print haskell code with comments
hkd-default library and test: Apply default value for optional field of HKD
HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
I1M library and test: Code for the Haskell course taught at the University of Seville.
inilist library and test: Processing for .ini files with duplicate sections and options
log4hs library, test and benchmark: A python logging style log library
newhope library, programs and test: Library implementing the NewHope cryptographic key-exchange protocol
par-dual library and test: ParDual class for Parallel <-> Sequential
pointedalternative library: Alternative done right
rfc library: Robert Fischer's Common library
salak library, test and benchmark: Configuration (re)Loader and Parser.
salak-toml library, test and benchmark: Configuration Loader for toml
salak-yaml library, test and benchmark: Configuration Loader for yaml
scidb-hquery library and program: Haskell query for SciDB via shim
strongswan-sql library, program and test: Interface library for strongSwan SQL backend
tasty-grading-system library and test: Grade your tasty-testsuite.
tensor-safe library and program: Create valid deep neural network architectures
tensors library, test and benchmark: Tensor in Haskell
tonalude library and tests: A standard library for Tonatona framework.
tonaparser library, program and tests: Scalable way to pass runtime configurations for tonatona
tonatona library and tests: meta application framework
tonatona-google-server-api library and tests: tonatona plugin for google-server-api
tonatona-logger library and tests: tonatona plugin for logging.
tonatona-persistent-postgresql library and tests: tonatona plugin for accessing PostgreSQL database.
tonatona-persistent-sqlite library and tests: tonatona plugin for accessing Sqlite database.
tonatona-servant library and tests: tonatona plugin for servant.
vulkan-api library: Low-level low-overhead vulkan api bindings

Linear Algebra

bed-and-breakfast library and test: Efficient Matrix and Vector operations in 100% Haskell.
lowlin library and test: Low dimensional linear algebra
nurbs library and test: NURBS

LinearAlgebra

HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.

Linguistics

ace library and test: Attempto Controlled English parser and printer
AlignmentAlgorithms library: Collection of alignment algorithms
maxent-learner-hw library and program: Hayes and Wilson's maxent learning algorithm for phonotactic grammars.
maxent-learner-hw-gui program: GUI for maxent-learner-hw
WordAlignment library, program and test: Bigram word pair alignments.

Linnet

linnet library and test: Lightweight library for building HTTP API
linnet-aeson library and test: Aeson JSON support for Linnet
linnet-conduit library and test: Conduit-backed support for streaming in Linnet

Linux

aur library and test: Access metadata from the Arch Linux User Repository.
cabal-appimage library: Cabal support for creating AppImage applications
sysinfo library and test: Haskell Interface for getting overall system statistics

Linux Desktop

greenclip program: Simple clipboard manager to be integrated with rofi

Lisp

axel library, program and test: The Axel programming language.

List

array-list library and tests: IsList instances of Array for OverloadedLists extension
data-ordlist library: Set and bag operations on ordered lists
do-list library, test and benchmark: Do notation for free
exotic-list-monads library and test: Non-standard monads on lists and non-empty lists
ilist library, test and benchmark: Optimised list functions for doing index-related things
lcs library: Find longest common sublist of two lists
list-duplicate library and test: Group and delete duplicates from a list
list-extras library: Common not-so-common functions for lists
list-filter library and test: Special takes and drops on lists
list-mux library: List Multiplexing
list-predicate library and test: Predicates on lists
ListLike library and test: Generalized support for list-like structures
listsafe library: Safe wrappers for partial list functions, supporting MonadThrow.
opentheory-stream library: Infinite stream types
ranged-list library and tests: The list like structure whose length or range of length can be specified
scroll-list library and test: This package provides functions for relocate an item within a list.
slist library and tests: Sized list
split library and test: Combinator library for splitting lists.
utility-ht library and test: Various small helper functions for Lists, Maybes, Tuples, Functions

Little Game

click-clack program: Toy game (tetris on billiard board). Hipmunk in action.

Live Coding

essence-of-live-coding library, programs and test: General purpose live coding framework
essence-of-live-coding-gloss library: General purpose live coding framework - Gloss backend
essence-of-live-coding-gloss-example program: General purpose live coding framework - Gloss example
essence-of-live-coding-pulse library: General purpose live coding framework - pulse backend
essence-of-live-coding-pulse-example program: General purpose live coding framework - pulse backend example
essence-of-live-coding-quickcheck library: General purpose live coding framework - QuickCheck integration
essence-of-live-coding-warp library and test: General purpose live coding framework

Local Search

local-search library: Generalised local search within Haskell, for applications in combinatorial optimisation.
metaheuristics library: Generalised local search within Haskell, for applications in combinatorial optimisation.

Log

log4hs library, test and benchmark: A python logging style log library

Logger

boots-app library and program: Factory for quickly building an application

Logging

arbor-monad-logger library, program and test: Simple logging library
co-log library, programs and test: Composable Contravariant Comonadic Logging Library
co-log-concurrent library: Asynchronous backend for co-log library
co-log-core library and test: Composable Contravariant Comonadic Logging Library
co-log-polysemy program: Composable Contravariant Comonadic Logging Library
co-log-polysemy-formatting library and program: A Polysemy logging effect for high quality (unstructured) logs.
co-log-sys library and test: Syslog implementation on top of 'co-log-core'
contra-tracer library: Arrow and contravariant tracers
datadog-tracing library, programs and test: Datadog tracing client and mock agent.
df1 library and test: Type, render and parse the df1 hierarchical structured log format
df1-html library and test: Render and parse df1 logs as HTML
di library: Typeful hierarchical structured logging using di, mtl and df1.
di-core library and test: Typeful hierarchical structured logging without monad towers.
di-df1 library and test: Write logs in the df1 format using the di logging framework
di-handle library: IO support for file handles in di-core
di-monad library: mtl flavoured typeful hierarchical structured logging for di-core.
di-polysemy library: DI logger wrapped for Polysemy
graflog library and test: Monadic correlated log events
greg-client library: A scalable distributed logger with a high-precision global time axis.
HLogger library and program: Simple, concurrent and easy-to-use logging library
hlogger library: Simple, concurrent, extendable and easy-to-use logging library
hsmisc library and test: A collection of miscellaneous modules
katip library, test and benchmark: A structured logging framework.
katip-datadog library and test: Datadog scribe for the Katip logging framework
katip-elasticsearch library, test and benchmark: ElasticSearch scribe for the Katip logging framework.
katip-kafka library: Katip scribe to send logs to Kafka
katip-logstash library: Logstash backend for katip.
katip-logzio library and test: Logz.IO scribe for the Katip logging framework
katip-rollbar library: Katip scribe that logs to Rollbar
katip-scalyr-scribe library and test: A katip scribe for logging to json
little-logger library and test: Basic logging based on co-log
located-monad-logger library: Location-aware logging without Template Haskell
log-effect library and program: An extensible log effect using extensible-effects
log-effect-syslog library: Syslog functions for log-effect
log-warper library, programs and test: Flexible, configurable, monadic and pretty logging
log2json library and program: Turn log file records into JSON.
log4hs library, test and benchmark: A python logging style log library
lumberjack library and program: Trek through your code forest and make logs
monad-logger-json library: JSON-friendly Logging APIs
monad-logger-syslog library: syslog output for monad-logger
polysemy-log library and test: Polysemy effects for logging
polysemy-log-co library and test: polysemy-log interpreter for co-log
polysemy-log-di library and test: polysemy-log interpreter for di
raven-haskell library and test: Haskell client for Sentry logging service.
rollbar library: error tracking through rollbar.com
rotating-log library and test: Size-limited, concurrent, automatically-rotating log writer.
SessionLogger library: Easy Loggingframework
simple-log library and test: Simple log for Haskell
simple-log-syslog library: Syslog backend for simple-log
simple-logger library: A very simple but efficient logging framework
simple-logging library and test: Logging effect to plug into the simple-effects framework
trifecta library and test: A modern parser combinator library with convenient diagnostics
tslogger library: Thread-safe logging, with additional interleaving fuzz-testing.
wai-log library: A logging middleware for WAI applications
yesod-katip library: Logging bridge between Yesod and Katip
yet-another-logger library, program and test: Yet Another Logger

Logic

AC-Boolean library: Handle Boolean values generatically.
atp library and tests: Interface to automated theorem provers
atp-haskell library and test: Translation from Ocaml to Haskell of John Harrison's ATP code
cond library: Basic conditional and boolean operators with monadic variants.
ersatz library, programs and tests: A monad for expressing SAT or QSAT problems using observable sharing.
ersatz-toysat library and programs: toysat driver as backend for ersatz
expressions library and test: Expressions and Formulae a la carte
expressions-z3 library and test: Encode and Decode expressions from Z3 ASTs
g4ip library and test: A theorem prover for propositional logic that uses G4ip
g4ip-prover library, program and test: Theorem prover for intuitionistic propositional logic using G4ip
hatt library, program and test: A truth table generator for classical propositional logic.
hol library, program, test and benchmark: Higher order logic
hout library and test: Non-interactive proof assistant monad for first-order logic.
judge library and program: Tableau-based theorem prover for justification logic.
jukebox library and program: A first-order reasoning toolbox
logic-classes library and test: Framework for propositional and first order logic, theorem proving
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
minisat library: A Haskell bundle of the Minisat SAT solver
minisat-solver library and benchmarks: High-level Haskell bindings for the MiniSat SAT solver.
obdd library and tests: Ordered Reduced Binary Decision Diagrams
picologic library, program and tests: Utilities for symbolic predicate logic expressions
picosat library and tests: Bindings to the PicoSAT solver
PropLogic library and program: Propositional Logic
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
RSolve library, program and test
satchmo library and tests: SAT encoding monad
satchmo-toysat library: toysat driver as backend for satchmo
smcdel library, programs, tests and benchmarks: Symbolic Model Checking for Dynamic Epistemic Logic
structural-induction library and test: Instantiate structural induction schemas for algebraic data types
term-rewriting library and test: Term Rewriting Library
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
tpdb library, programs and tests: Data Type for Rewriting Systems
unification-fd library: Simple generic unification algorithms.
zsyntax library and test: Automated theorem prover for the Zsyntax biochemical calculus

Logic Programming

clingo library and programs: Haskell bindings to the Clingo ASP solver
souffle-dsl library and test: Haskell EDSL for Souffle
souffle-haskell library and test: Souffle Datalog bindings for Haskell
unique-logic library and test: Solve simple simultaneous equations
unique-logic-tf library and test: Solve simple simultaneous equations

Logstash

hslogstash library and test: A library to work with, or as, a logstash server

LruCache

lrucaching-haxl library: Combine lrucaching and haxl.

LUA

lua-bytecode library: Library for loading Lua bytecode.

Machine Learning

affine-invariant-ensemble-mcmc library: General-purpose sampling
datasets library, test and benchmark: Classical data sets for statistics and machine learning
dtw library and test: (Fast) Dynamic Time Warping
fei-base library and program: FFI to MXNet
fei-cocoapi library and program: Cocodataset with cocoapi
fei-dataiter library, program and tests: mxnet dataiters
fei-datasets library and programs: Some datasets
fei-examples programs: fei examples
fei-modelzoo library: A collection of standard models
fei-nn library: Train a neural network with MXNet in Haskell.
genetics program: A Genetic Algorithm library
grenade library, test and benchmarks: Practical Deep Learning in Haskell
haskell-ml library, program and test: Machine learning in Haskell
hasktorch library, programs and test: Torch for tensors and neural networks in Haskell
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-indef library and test: Core Hasktorch abstractions wrapping FFI bindings
hasktorch-signatures library and programs: Backpack signatures for Tensor operations
hasktorch-signatures-partial library: Functions to partially satisfy tensor signatures
hasktorch-signatures-support library: Signatures for support tensors in hasktorch
hasktorch-signatures-types library: Core types for Hasktorch backpack signatures
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hasktorch-zoo library: Neural architectures in hasktorch
HLearn-algebra library: Algebraic foundation for homomorphic learning
HLearn-approximation library
HLearn-classification library
HLearn-datastructures library
HLearn-distributions library: Distributions for use with the HLearn library
HMM library: A hidden markov model library
hmm library: A hidden markov model library
hopfield library, programs and test: Hopfield Networks, Boltzmann Machines and Clusters
htvm library and test: Bindings for TVM machine learning framework
KdTree library and test: KdTree, for efficient search in K-dimensional point clouds.
LambdaNet library: A configurable and extensible neural network library
Learning library, programs and test: The most frequently used machine learning tools
learning-hmm library: Yet another library for hidden Markov models
mcmc-samplers library: Combinators for MCMC sampling
menoh library, programs and test: Haskell binding for Menoh DNN inference library
multilinear library, tests and benchmarks: Comprehensive and efficient (multi)linear algebra implementation.
multilinear-io library, tests and benchmark: Conduit-based input/output capability for multilinear package.
mxnet library and test: MXNet interface in Haskell.
mxnet-dataiter library and tests: mxnet dataiters
mxnet-examples programs: Examples for MXNet in Haskell.
mxnet-nn library and program: Train a neural network with MXNet in Haskell.
mxnet-nnvm library: NNVM interface in Haskell.
neural library, programs, tests and benchmark: Neural Networks in native Haskell
perceptron library: The perceptron learning algorithm.
rc library, program and test: Reservoir Computing, fast RNNs
record-encode library and tests: Generic encoding of records
rl-satton library and program: Collection of Reinforcement Learning algorithms
sibe library and programs: Machine Learning algorithms
tensorflow library and tests: TensorFlow bindings.
tensorflow-core-ops library: Haskell wrappers for Core Tensorflow Ops.
tensorflow-logging library and test: TensorBoard related functionality.
tensorflow-mnist library, program and test: TensorFlow demo application for learning MNIST model.
tensorflow-opgen library: Code generation for TensorFlow operations.
tensorflow-ops library, tests and benchmark: Friendly layer around TensorFlow bindings.
tensorflow-proto library: TensorFlow protocol buffers.
tensorflow-records library and test: Encoder and decoder for the TensorFlow \"TFRecords\" format.
tensorflow-records-conduit library: Conduit wrappers for TensorFlow.Records.
tensorflow-test library: Some common functions for test suites.
vp-tree library, test and benchmark: Vantage Point Trees

Machine Vision

CV library: OpenCV based machine vision library
opencv-raw library: Raw Haskell bindings to OpenCV >= 2.0
simple-firewire library: Simplified interface for firewire cameras

Machine-learning

ngram library and program: Ngram models for compressing and classifying text.

Machines

machines-bytestring library: ByteString support for machines
machines-zlib library: Decompression support for machines

Macros

axel library, program and test: The Axel programming language.

Mail

hailgun-simple library: Easy-to-use wrapper for the hailgun package
list-remote-forwards program and tests: List all remote forwards for mail accounts stored in a SQL database.
mail-reports library: A parser library for DMARC and SMTP TLS reports
mailbox-count program and tests: Count mailboxes in a SQL database.
mailchimp-subscribe program: MailChimp subscription request handler

Manatee

manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-browser library and program: Browser extension for Manatee.
manatee-core library: The core of Manatee.
manatee-curl library and program: Download Manager extension for Manatee.
manatee-editor library and program: Editor extension for Manatee.
manatee-filemanager library and program: File manager extension for Manatee.
manatee-imageviewer library and program: Image viewer extension for Manatee.
manatee-ircclient library and programs: IRC client extension for Manatee.
manatee-mplayer library and programs: Mplayer client extension for Manatee.
manatee-pdfviewer library and program: PDF viewer extension for Manatee.
manatee-processmanager library and program: Process manager extension for Manatee.
manatee-reader library and program: Feed reader extension for Manatee.
manatee-template library and program: Template code to create Manatee application.
manatee-terminal library and program: Terminal Emulator extension for Manatee.
manatee-welcome library and program: Welcome module to help user play Manatee quickly.

Map

olwrapper library and program: An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay

MapReduce

compressed library: Compressed containers and reducers
hadoop-streaming library and test: A simple Hadoop streaming library

Markdown

hakyll-shortcut-links library and test: Use shortcut-links in markdown file for Hakyll
shortcut-links library and test: Link shortcuts for use in text markup

Math

AC-Angle library: Angles in degrees and radians.
AC-Boolean library: Handle Boolean values generatically.
AC-Colour library: Efficient RGB colour types.
AC-HalfInteger library: Efficient half-integer type.
AC-Terminal library: Trivial wrapper over ansi-terminal.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
accelerate-arithmetic library and test: Linear algebra and interpolation using the Accelerate framework
accelerate-blas library, tests and benchmarks: Numeric Linear Algebra in Accelerate
accelerate-cublas library, program and benchmark: Basic Linear Algebra using native CUBLAS library
accelerate-cufft library and programs: Accelerate frontend to the CUFFT library (Fourier transform)
accelerate-fft library and tests: FFT using the Accelerate library
accelerate-fftw library: Accelerate frontend to the FFTW library (Fourier transform)
accelerate-fourier library, test and benchmark: Fast Fourier transform and convolution using the Accelerate framework
accelerate-fourier-benchmark program: Compare different implementations of the Fast Fourier Transform
accelerate-typelits library and test: a typesafe way encode accelerate matrices and vectors
acts library: Semigroup actions and torsors.
ad library, test and benchmark: Automatic Differentiation
adjunction library, test and benchmark: See README for more info
AERN-Basics library and program: foundational type classes for approximating exact real numbers
AERN-Net library: Compositional lazy dataflow networks for exact real number computation
AERN-Real library: arbitrary precision real interval arithmetic
AERN-Real-Double library and programs: arbitrary precision real interval arithmetic
AERN-Real-Interval library: arbitrary precision real interval arithmetic
AERN-RnToRm library: polynomial function enclosures (PFEs) approximating exact real functions
AERN-RnToRm-Plot library: GL plotting of polynomial function enclosures (PFEs)
aern2-mp library and test: Multi-precision ball (interval) arithmetic
aern2-real library, program and test: Exact real numbers via Cauchy sequences and MPFR
affine library: Affine spaces (generalized)
alg library: Algebraic structures
algebra library: Constructive abstract algebra
algebraic library: General linear algebra structures.
algebraic-classes library: Conversions between algebraic classes and F-algebras.
antimirov library and program: Define the language containment (=subtyping) relation on regulare expressions.
apportionment library: Round a set of numbers while maintaining its sum
ApproxFun-hs library: Function approximation
arb-fft library, program and test: Pure Haskell arbitrary length FFT library
arithmatic library: do things with numbers
arithmoi library, test and benchmarks: Efficient basic number-theoretic functions.
arrayfire library, programs and tests: Haskell bindings to the ArrayFire general-purpose GPU library
atp library and tests: Interface to automated theorem provers
automata library and test: automata
backprop library and benchmark: Heterogeneous automatic differentation
Baggins library: Tools for self-assembly
battleship-combinatorics library, program and test: Compute number of possible arrangements in the battleship game
bayes-stack library: Framework for inferring generative probabilistic models with Gibbs sampling
bed-and-breakfast library and test: Efficient Matrix and Vector operations in 100% Haskell.
BerlekampAlgorithm library: Factorization of polynomials over finite field
besout library: Extended GCD of polynomials over F_p[x]
bin library: Bin: binary natural numbers.
bindings-mpdecimal library: bindings to mpdecimal library
bindings-saga-cmd library and programs: Wrapping saga_cmd
bins library: Aggregate continuous values into discrete bins
blas library: Bindings to the BLAS library
blas-carray library: Auto-generated interface to Fortran BLAS via CArrays
blas-comfort-array library: Auto-generated interface to Fortran BLAS via comfort-array
blas-ffi library and program: Auto-generated interface to Fortran BLAS
blas-hs library and test: Low-level Haskell bindings to Blas.
boltzmann-brain library and program: Analytic sampler compiler for combinatorial systems.
boolector library and tests: Haskell bindings for the Boolector SMT solver
boolsimplifier library: Simplification tools for simple propositional formulas.
braid library and program: Types and functions to work with braids and Khovanov homology.
buffon library: An implementation of Buffon machines.
buffon-machines library: Perfect simulation of discrete random variables
burst-detection library, test and benchmark: Burst detection algorithms
ca library: Cellular Automata
caffegraph library
cal-layout library and program: Calendar Layout Algorithm
calculator program and test: A calculator repl, with variables, functions & Mathematica like dynamic plots.
caldims library and program: Calculation tool and library supporting units
calendar-recycling program: List years with the same calendars
canon library: Arithmetic for Psychedelically Large Numbers
Cartesian library: Coordinate systems
casadi-bindings library and tests: mid-level bindings to CasADi
casadi-bindings-control library: low level bindings to casadi-control
casadi-bindings-core library: autogenerated low level bindings to casadi
casadi-bindings-internal library: low level bindings to CasADi
casadi-bindings-ipopt-interface library: low level bindings to casadi-ipopt_interface
casadi-bindings-snopt-interface library: low level bindings to casadi-snopt_interface
cash library: the Computer Algebra SHell
casui program: Equation Manipulator
category library: Categorical types and classes
category-traced library: Traced monoidal categories
cayley-dickson library and test: Complex numbers, quaternions, octonions, sedenions, etc.
cf library and test: Exact real arithmetic using continued fractions
checksum library: Compute and verify checksums of ISBN, IBAN, etc.
circular library, test and benchmark: Circular fixed-sized mutable vectors
cl3 library, test and benchmark: Clifford Algebra of three dimensional space.
cl3-hmatrix-interface library: Interface to/from Cl3 and HMatrix.
cl3-linear-interface library: Interface to/from Cl3 and Linear.
clac program: Simple CLI RPN calculator
clif library, test and benchmark: A Clifford algebra number type for Haskell
clifford library, program, test and benchmark: A Clifford algebra library
closure library: Depth- and breadth-first set closures
clumpiness library: Calculate the clumpiness of leaf properties in a tree
clustering library, test and benchmark: High performance clustering algorithms
cmath library: A binding to the standard C math library
coincident-root-loci library and test: Equivariant CSM classes of coincident root loci
collect-errors library: Error monad with a Float instance
combinat library and test: Generate and manipulate various combinatorial objects.
combinat-compat library and test: Generate and manipulate various combinatorial objects.
combinat-diagrams library: Graphical representations for various combinatorial objects
combinatorial library and test: Count, enumerate, rank and unrank combinatorial objects
combinatorics library: Efficient computation of common combinatoric functions.
complex-generic library: complex numbers with non-mandatory RealFloat
complex-integrate library: A simple integration function to integrate a complex-valued complex functions
computational-algebra library, programs, tests and benchmarks: Well-kinded computational algebra library, currently supporting Groebner basis.
computational-geometry library: Collection of algorithms in Computational Geometry.
conjugateGradient library: Sparse matrix linear-equation solver
connections library, program and test: Orders, Galois connections, and lattices.
constructible library: Exact computation with constructible real numbers
constructive-algebra library: A library of constructive algebra.
ContextAlgebra program: Implementation of the context algebra.
continued-fraction library, test and benchmark: Types and functions for working with continued fractions in Haskell
continued-fractions library and test: Continued fractions.
converge library: Limit operations for converging sequences
coya library: Coya monoids
cplex-hs library: high-level CPLEX interface
crf-chain1 library: First-order, linear-chain conditional random fields
crf-chain1-constrained library: First-order, constrained, linear-chain conditional random fields
crf-chain2-generic library: Second-order, generic, constrained, linear conditional random fields
cubicspline library: Natural cubic spline interpolation.
curve25519 library and test: Fast implementations of the curve25519 elliptic curve primitives.
cyclotomic library and test: A subfield of the complex numbers for exact calculation.
Data-Angle library: Geometric angles
data-category library: Category theory
data-interval library and test: Interval datatype, interval arithmetic and interval-based containers
data-nat library: data Nat = Zero | Succ Nat
dde library, programs, test and benchmark: Delay differential equations
Decimal library and test: Decimal numbers with variable precision
decimal-literals library and test: Preprocessing decimal literals more or less as they are (instead of via fractions)
declarative library and test: DIY Markov Chains.
deeplearning-hs library, program and test: Deep Learning in Haskell
deka library: Decimal floating point arithmetic
deka-tests library, program and test: Tests for deka, decimal floating point arithmetic
dense-linear-algebra library and test: Simple and incomplete pure haskell implementation of linear algebra
derivation-trees library: Typeset Derivation Trees via MetaPost
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dfrac library: A package for precise decimal arithmatic using rationals.
diagrams-solve library and test: Pure Haskell solver routines used by diagrams
DifferenceLogic library: A theory solver for conjunctions of literals in difference logic
digamma library: A (deprecated) implementation of the digamma function
dimensional library, tests and benchmark: Statically checked physical dimensions, using Type Families and Data Kinds.
dimensional-tf library: Statically checked physical dimensions, implemented using type families.
dimensions library and test: Safe type-level dimensionality for multidimensional data.
diophantine library: A quadratic diophantine equation solving library.
directed-cubical library: Finite directed cubical complexes and associated algorithms
dirichlet library and test: Multivariate Dirichlet distribution
Dist library and test: A Haskell library for probability distributions
DistanceTransform library and test: Distance transform function.
distribution library: Finite discrete probability distributions.
distribution-plot library: Easily plot distributions from the distribution package..
dozenal library: A Haskell library for using Dozenal (Duodecimal - Base 12) numbers.
DP library: Pragmatic framework for dynamic programming
dsp library, programs and test: Haskell Digital Signal Processing
dual library: Dual category
dumb-cas library and test: A computer “algebra” system that knows nothing about algebra, at the core.
dvda library and test: Efficient automatic differentiation and code generation
dyckword library and test: A library for working with binary Dyck words.
earcut library: Binding to C++ earcut library.
ease library: Robert Penner's easing equations
easyplot library: A tiny plotting library, utilizes gnuplot for plotting.
easytensor library, test and benchmarks: Pure, type-indexed haskell vector, matrix, and tensor library.
easytensor-vulkan library: Use easytensor with vulkan-api.
egyptian-fractions library: Egyptian fractions in Haskell
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
elbow library: Find the elbow point.
emd library, test and benchmark: Empirical Mode Decomposition and Hilbert-Huang Transform
Eq program: Render math formula in ASCII, and perform some simplifications
EqualitySolver library: ...
equational-reasoning library: Proof assistant for Haskell using DataKinds & PolyKinds
equational-reasoning-induction library: Proof assistant for Haskell using DataKinds & PolyKinds
erf library: The error function, erf, and related functions.
erf-native library: Native Haskell implementation of the interface from the erf package
estimator library: State-space estimation algorithms such as Kalman Filters
euler library and test: Mathematics utilities for Haskell
exact-combinatorics library: Efficient exact computation of combinatoric functions.
exact-cover library, program and test: Efficient exact cover solver.
exact-real library, tests and benchmark: Exact real arithmetic
exact-real-positional library: Framework for Exact Real Arithmetic in the Positional Number System
exp-pairs library, test and benchmarks: Linear programming over exponent pairs
explicit-determinant library: explicit computation of determinant of small matrices
expressions library and test: Expressions and Formulae a la carte
expressions-z3 library and test: Encode and Decode expressions from Z3 ASTs
extended-categories library: Extended Categories
extended-reals library and test: Extension of real numbers with positive/negative infinities
factory library, program and test: Rational arithmetic in an irrational world.
fad library: Forward Automatic Differentiation.
fadno-braids library: Braid representations in Haskell
fast-arithmetic library, test and benchmark: Fast functions on integers.
fast-math library: Non IEEE-754 compliant compile-time floating-point optimisations
fft library and test: Bindings to the FFTW library.
fftwRaw library: Low level bindings to FFTW.
fib library: fibonacci algebra
fin library and test: Nat and Fin: peano naturals and finite numbers
find-clumpiness library and program: Find the clumpiness of labels in a tree
finite-field library and test: Finite Fields
finite-fields library and test: Arithmetic in finite fields
FirstOrderTheory library: Grammar and typeclass for first order theories
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
fixed-precision library: Fixed Precision Arithmetic
fixedprec library: A fixed-precision real number type
fizz-buzz library: Functional Fizz/Buzz
flat-mcmc library and tests: Painless general-purpose sampling.
float128 library: FFI bindings for C _Float128
foldl-statistics library, test and benchmark: Statistical functions from the statistics package implemented as Folds.
fp-ieee library, tests and benchmark: IEEE 754-2019 compliant operations
fplll library and test: Haskell bindings to <https://fplll.github.io/fplll/ fplll>
fpnla library: A library for NLA operations
fpnla-examples library and tests: Example implementations for FPNLA library
fptest programs and tests: IEEE754r floating point conformance tests
fractals library and test: A collection of useful fractal curve encoders
free-functors library: Free functors, adjoint to functors that forget class constraints.
free-vector-spaces library: Instantiate the classes from the vector-space package with types from linear
frotate program and test: Advanced rotation of backups and other things
function-instances-algebra library: Instances of the Algebra.* classes for functions
functor library: Functors
game-probability library: Simple probability library for dice rolls, card games and similar
gamma library and test: Gamma function and related functions.
garepinoh library and programs: reverse prefix notation calculator and calculation library
GaussQuadIntegration library: Non-adaptive Gaussian quadrature for numeric integraton
geocalc library: Libary for calculating distances between two coordinates in WSG84
geom2d library and tests: package for geometry in euklidean 2d space
GeomPredicates library: Geometric predicates
GeomPredicates-SSE library: Geometric predicates (Intel SSE)
ghc-typelits-presburger library, program and test: Presburger Arithmetic Solver for GHC Type-level natural numbers.
glasso library: Graphical Lasso algorithm
glicko library and test: Glicko-2 implementation in Haskell.
glpk-headers library and test: Low-level Haskell bindings to GLPK.
glpk-hs library and program: Comprehensive GLPK linear programming bindings
gnuplot library and program: 2D and 3D plots using gnuplot
goal-core library and program: Core imports for Geometric Optimization Libraries.
goal-geometry library and programs: Scientific computing on geometric objects
goal-probability library and programs: Manifolds of probability distributions
goal-simulation library and programs: Mealy based simulation tools
gray-extended library and test: Gray encoding schemes
grid library and test: Tools for working with regular grids (graphs, lattices).
group-theory library: The theory of groups
groups library: Groups
groups-generic library: Generically derive Group instances.
gsl-random library: Bindings the the GSL random number generation facilities.
gsl-random-fu library: Instances for using gsl-random with random-fu
gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
haar library and test: Haar wavelet transforms
HABQT library, program and test: Hierarchical adaptive Bayesian quantum tomography for quantum bits
hahp library and program: Analytic Hierarchy Process
HasBigDecimal library and test: A library for arbitrary precision decimal numbers.
hascal library and program: tiny calculator library and command-line program
haskell-eigen-util library and test: Some utility functions for haskell-eigen library
haskell-igraph library and test: Bindings to the igraph C library (v0.8.0).
haskell-mpfr library: Correctly-rounded arbitrary-precision floating-point arithmetic
HaskellForMaths library: Combinatorics, group theory, commutative algebra, non-commutative algebra
HaskellLM library: Pure Haskell implementation of the Levenberg-Marquardt algorithm
hbayes library and test: Bayesian Networks
hblas library and test: Human friendly BLAS and Lapack bindings for Haskell.
hcg-minus library: haskell cg (minus)
hcg-minus-cairo library: haskell cg (minus) (cairo rendering)
hdr-histogram library, test and benchmark: Haskell implementation of High Dynamic Range (HDR) Histograms
HERA library
HerbiePlugin library and tests: automatically improve your code's numeric stability
heyting-algebras library and test: Heyting and Boolean algebras
hgeometric library: A geometric library with bindings to GPC.
hieraclus library: Automated clustering of arbitrary elements in Haskell.
hirt program: Calculates IRT 2PL and 3PL models
hlbfgsb library and test: Haskell binding to L-BFGS-B version 3.0
hmatrix library: Numeric Linear Algebra
hmatrix-backprop library and test: hmatrix operations lifted for backprop
hmatrix-banded library: HMatrix interface to LAPACK functions for banded matrices
hmatrix-glpk library: Linear Programming based on GLPK
hmatrix-gsl library: Numerical computation
hmatrix-gsl-stats library: GSL Statistics interface
hmatrix-mmap library: Memory map Vector from disk into memory efficiently
hmatrix-morpheus library, test and benchmark: Low-level machine learning auxiliary functions.
hmatrix-nipals library and program: NIPALS method for Principal Components Analysis on large data-sets.
hmatrix-quadprogpp library: Bindings to the QuadProg++ quadratic programming library
hmatrix-repa library: Adaptors for interoperability between hmatrix and repa
hmatrix-sparse library: Sparse linear solver
hmatrix-special library: Interface to GSL special functions
hmatrix-static library: hmatrix with vector and matrix sizes encoded in types
hmatrix-sundials library, test and benchmark: hmatrix interface to sundials
hmatrix-svdlibc library, test and benchmark: SVDLIBC bindings for HMatrix
hmatrix-syntax library: MATLAB-like syntax for hmatrix vectors and matrices
hmatrix-tests library, tests and benchmark: Tests for hmatrix
hmatrix-vector-sized library and test: Conversions between hmatrix and vector-sized types
hmm-hmatrix library and test: Hidden Markov Models using HMatrix primitives
hmm-lapack library and test: Hidden Markov Models using LAPACK primitives
hmpfr library: Haskell binding to the MPFR library
homeomorphic library: Homeomorphic Embedding Test
Homology library: Compute the homology of a chain complex
hopfield-networks library, program and test: Hopfield Networks for unsupervised learning in Haskell
hops library, program and tests: Handy Operations on Power Series
hps-kmeans library: A nice implementation of the k-Means algorithm.
hR library: R bindings and interface
HROOT library: Haskell binding to the ROOT data analysis framework
HROOT-core library: Haskell binding to ROOT Core modules
HROOT-graf library: Haskell binding to ROOT Graf modules
HROOT-hist library: Haskell binding to ROOT Hist modules
HROOT-io library: Haskell binding to ROOT IO modules
HROOT-math library: Haskell binding to ROOT Math modules
HROOT-tree library: Haskell binding to ROOT Tree modules
hs-functors library: Functors from products of Haskell and its dual to Haskell
HsASA library: A haskell interface to Lester Ingber's adaptive simulating annealing code
hsignal library: Signal processing and EEG data analysis
hsilop program: RPN calculator
hstatistics library: Statistics
hTensor library: Multidimensional arrays and simple tensor computations.
hz3 library, program and test: Bindings for the Z3 Theorem Prover
ieee library: Utilities for dealing with IEEE floating point numbers
ieee754 library: Utilities for dealing with IEEE floating point numbers
integer-logarithms library and test: Integer logarithms.
integer-roots library and tests: Integer roots and perfect powers
interpolation library, programs and test: piecewise linear and cubic Hermite interpolation
intervals library and test: Interval Arithmetic
involutive-semigroups library: Semigroups with involution.
ipopt-hs library and program: haskell binding to ipopt and nlopt including automatic differentiation
ireal library: Real numbers and intervals with relatively efficient exact arithmetic.
irt library: Item Response Theory functions for use in computerized adaptive testing
iter-stats library and test: iteratees for statistical processing
jacobi-roots library and test: Roots of two shifted Jacobi polynomials (Legendre and Radau) to double precision
jalla library and test: Higher level functions for linear algebra. Wraps BLAS and LAPACKE.
jinquantities library, program and tests: Unit conversion and manipulation library.
Kalman library: A slightly extended Kalman filter
kalman library and test: Kalman and particle filters and smoothers
kleene library: Kleene algebra
kmeans-vector library, program and benchmark: An implementation of the kmeans clustering algorithm based on the vector package
knead-arithmetic library: Linear algebra and interpolation using LLVM JIT
knots library and program: Khovanov homology computations
ks-test library: Kolmogorov distribution and Kolmogorov-Smirnov test.
l-bfgs-b library: Bindings to L-BFGS-B, ...
lagrangian library and test: Solve Lagrange multiplier problems
lapack-carray library: Auto-generated interface to Fortran LAPACK via CArrays
lapack-comfort-array library: Auto-generated interface to Fortran LAPACK via comfort-array
lapack-ffi library: Auto-generated interface to Fortran LAPACK
lapack-ffi-tools programs: Generator for Haskell interface to Fortran LAPACK
LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals
Lattices library and test: A library for lattices
lattices library and test: Fine-grained library for constructing and manipulating lattices
lawz library: Common mathematical laws.
lazysplines library: Differential solving with lazy splines
lean library: Bonds to Lean theorem prover
left4deadrl program: left4dead-inspired roguelike
levmar library: An implementation of the Levenberg-Marquardt algorithm
lfst library and test: L-Fuzzy Set Theory implementation in Haskell
libroman library and test: Use Roman Numerals as a Numeric Datatype (sort of)
lie library and program: Lie Algebras
lin-alg library: Low-dimensional matrices and vectors for graphics and physics
linda library: LINear Discriminant Analysis
linear library and tests: Linear Algebra
linear-accelerate library and test: Lifting linear vector spaces into Accelerate
linear-algebra-cblas library and program: A linear algebra library with bindings to BLAS and LAPACK
linear-circuit library and test: Compute resistance of linear electrical circuits
linear-code library and test: A simple library for linear codes (coding theory, error correction)
linear-grammar library and test: A simple grammar for building linear equations and inclusive inequalities.
linear-tests library and test: Linear Algebra
linear-vect library: A low-dimensional linear algebra library, operating on the Num typeclass
linearEqSolver library: Use SMT solvers to solve linear systems over integers and rationals
linearmap-category library: Native, complete, matrix-free linear algebra.
logfloat library: Log-domain floating point numbers
Logic library: Logic
logic-TPTP library, programs and test: Import, export etc. for TPTP, a syntax for first-order logic
long-double : FFI bindings for C long double
lowlin library and test: Low dimensional linear algebra
magico program: Compute solutions for Magico puzzle
magma library and test: magma is an algebraic structure.
magmas library: Magma-like objects.
manifold-random library: Sampling random points on general manifolds.
manifolds library and test: Coordinate-free hypersurfaces
manifolds-core library: The basic classes for the manifolds hierarchy.
math-extras library and test: A variety of mathematical utilities
math-functions library, test and benchmark: Collection of tools for numeric computations
math-grads library and tests: Library containing graph data structures and graph algorithms
math-programming library and test: A library for formulating and solving math programs.
math-programming-glpk library and test: A GLPK backend to the math-programming library.
math-programming-tests library: Utility functions for testing implementations of the math-programming library.
mathexpr library: Parse and evaluate math expressions with variables and functions
mathflow library and tests: Dependently typed tensorflow modeler
matlab library and programs: Matlab bindings and interface
matrix library, tests and benchmark: A native implementation of matrix operations.
matrix-lens library and test: Optics for the "matrix" package
matrix-market library: Read and write NIST Matrix Market files
matrix-market-pure library: Pure and composable reader and writer of the Matrix Market format.
matrix-sized library and test: Haskell matrix library with interface to C++ linear algebra libraries.
matrix-static library and test: Type-safe matrix operations
maxent library and test: Compute Maximum Entropy Distributions
mcl library, test and benchmark: Bindings to mcl, a generic and fast pairing-based cryptography library
mcmc library, test and benchmark: Sample from a posterior using Markov chain Monte Carlo
mcmc-samplers library: Combinators for MCMC sampling
mcmc-types library: Common types for sampling.
mdp library, programs and test: Tools for solving Markov Decision Processes.
MeanShift library: Mean shift algorithm
mersenne-random library: Generate high quality pseudorandom numbers using a SIMD Fast Mersenne Twister
mersenne-random-pure64 library: Generate high quality pseudorandom numbers purely using a Mersenne Twister
mfsolve library and test: Equation solver and calculator à la metafont
miniball library: Bindings to Miniball, a smallest enclosing ball library
MIP library and test: Library for using Mixed Integer Programming (MIP)
MIP-glpk library and test: A GLPK backend to the MIP library.
mixed-strategies library and program: Find optimal mixed strategies for two-player games
mixed-types-num library and test: Alternative Prelude with numeric and logic expressions typed bottom-up
mltool library and test: Machine Learning Toolbox
mod library, test and benchmark: Fast type-safe modular arithmetic
modular library: Type-safe modular arithmetic
modular-arithmetic library and test: A type for integers modulo some constant.
Modulo library: Modular arithmetic via Numeric-Prelude
monad-lrs library and test: a monad to calculate linear recursive sequence
Monocle library: Symbolic computations in strict monoidal categories with LaTeX output.
monoidplus library: Extra classes/functions about monoids
monoids library: Deprecated: Use 'reducers'
monte-carlo library and test: A monad and transformer for Monte Carlo calculations.
ms library and tests: metric spaces
multiset-comb library: Combinatorial algorithms over multisets
mwc-probability library: Sampling function-based probability distributions.
mwc-random library, tests and benchmark: Fast, high quality pseudo random number generation
mwc-random-monad library: Monadic interface for mwc-random
Naperian library: Naperian Functors for APL-like programming
NaperianNetCDF library and program: Instances of NcStore for hypercuboids
nat library: Lazy binary natural numbers
natural-arithmetic library: Arithmetic of natural numbers
natural-induction library: Induction over natural numbers
natural-numbers library: Natural numbers
NearContextAlgebra program: Context Algebra of near
netlib-carray library: Helper modules for CArray wrappers to BLAS and LAPACK
netlib-comfort-array library: Helper modules for comfort-array wrappers to BLAS and LAPACK
netlib-ffi library: Helper modules for FFI to BLAS and LAPACK
network-topic-models programs: A few network topic model implementations for bayes-stack
nimber library: Finite nimber arithmetic
noether library, program, test and benchmark: Math in Haskell.
Noise library: A Haskell coherent noise generator based on libnoise
non-negative library and test: Non-negative numbers
nonlinear-optimization library: Various iterative algorithms for optimization of nonlinear functions.
nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
normaldistribution library: Minimum fuss normally distributed random values.
np-extras library: NumericPrelude extras
np-linear library: Linear algebra for the numeric-prelude framework
NTRU library: NTRU Cryptography
nuha library and test: Multidimensional arrays, Linear algebra, Numerical analysis
number library: A library for real numbers
numbers library and test: Various number types
NumberSieves library: Number Theoretic Sieves: primes, factorization, and Euler's Totient
NumberTheory library and test: A library for number theoretic computations, written in Haskell.
numeric-domains library: Numeric Domains
numeric-extras library: Useful tools from the C standard library
numeric-ode library and program: Ode solvers
numeric-prelude library, programs and test: An experimental alternative hierarchy of numeric type classes
numeric-quest library: Math and quantum mechanics
numeric-tools library and test: Collection of numerical tools for integration, differentiation etc.
numerical library and test: core package for Numerical Haskell project
numericpeano library: Peano numbers with attendant bells and whistles.
numtype library: Type-level (low cardinality) integers.
numtype-dk library: Type-level integers, using TypeNats, Data Kinds, and Closed Type Families.
numtype-tf library: Type-level (low cardinality) integers, implemented using type families.
nurbs library and test: NURBS
oeis library and test: Interface to the Online Encyclopedia of Integer Sequences (OEIS)
oeis2 library and test: Interface for Online Encyclopedia of Integer Sequences (OEIS).
Operads library: Groebner basis computation for Operads.
optimization library: Numerical optimization
Ordinals library: Ordinal arithmetic
Paillier library and test: a simple Paillier cryptosystem
pareto library: A library for cause-effect relationships.
ParserFunction library: Parse and evaluate mathematical expressions.
pava library, test and benchmark: Greatest convex majorants and least concave minorants
peano library: Peano numbers
pell library and test: Package to solve the Generalized Pell Equation.
periodic-polynomials library: A library for working with periodic polynomials (very basic functionality)
permutation library: A library for permutations and combinations.
permutations library and test: Permutations of finite sets
Persistence library and test: A versatile library for topological data analysis.
phonetic-languages-constaints library: Constraints to filter the needed permutations
phonetic-languages-constraints library: Constraints to filter the needed permutations
phonetic-languages-constraints-array library: Constraints to filter the needed permutations
phonetic-languages-examples library and programs: A generalization of the uniqueness-periods-vector-examples functionality.
phonetic-languages-permutations library: Commonly used versions of the phonetic-languages-common package
phonetic-languages-permutations-array library: Permutations and universal set related functions for the phonetic-languages series
phonetic-languages-phonetics-basics library and program: A library for working with generalized phonetic languages usage.
phonetic-languages-plus library and program: Some common shared between different packages functions.
phonetic-languages-rhythmicity library: Allows to estimate the rhythmicity properties for the text (usually, ...
phonetic-languages-simplified-base library: ...
phonetic-languages-simplified-common library: A simplified version of the phonetic-languages-functionality
phonetic-languages-simplified-examples-array library and programs: Helps to create Ukrainian texts with the given phonetic properties.
phonetic-languages-simplified-examples-common library: Some commonly used by phonetic-languages-simplified* series functions.
phonetic-languages-simplified-lists-examples library and programs: Simplified and somewhat optimized version of the phonetic-languages-examples.
phonetic-languages-simplified-properties-array library: A generalization of the uniqueness-periods-vector-properties package.
phonetic-languages-simplified-properties-lists-double library: A generalization of the uniqueness-periods-vector-properties package.
pig library and program: dice game
plot-gtk-ui library: A quick way to use Mathematica like Manipulation abilities
plot-lab program: A plotting tool with Mathematica like Manipulation abilities
poker-eval library: Binding to libpoker-eval
polar library: Complex numbers in polar form
poly library, tests and benchmark: Polynomials
polynom library and test: Polynomial types and operations
polynomial library and test: Polynomials
polynomials-bernstein library: A solver for systems of polynomial equations in bernstein form
prime library and test: prime number tools
primesieve library and programs: FFI bindings for the primesieve library.
probability library: Probabilistic Functional Programming
probable library and benchmark: Easy and reasonably efficient probabilistic programming and random generation
Probnet library: Geometric Extrapolation of Integer Sequences with error prediction
product library: Product category
property library: common properties
ProxN library: Proximity sets in N dimensions
pure-fft library: Fast Fourier Transform
qd library: double-double and quad-double number type via libqd
qd-vec library: 'Vec' instances for 'qd' types
qhull-simple library: Simple bindings to Qhull, a library for computing convex hulls
qlinear library and test: Typesafe library for linear algebra
quadratic-irrational library and tests: An implementation of quadratic irrationals
quantities library, program and tests: Unit conversion and manipulation library.
quote-quot library, test and benchmark: Divide without division
r-glpk-phonetic-languages-ukrainian-durations library and program: Can be used to calculate the durations of the approximations of the Ukrainian phonemes.
rad library: Reverse Automatic Differentiation.
rampart library, test and benchmark: Determine how intervals relate to each other.
random-extras library: Additional functions for random values.
random-fu : Random number generation
random-fu-multivariate library and test: Multivariate distributions for random-fu
random-hypergeometric library and test: Random variate generation from hypergeometric distributions
random-source library: Generic basis for random number generators
range-space library and test: A Range type with vector-space instances
RANSAC library and test: The RANSAC algorithm for parameter estimation.
ratio-int library: Fast specialisation of Data.Ratio for Int.
rclient library: Haskell client for Rserve
reduce-equations library, program and test: Simplify a set of equations by removing redundancies
reducers library: Semigroups, specialized containers and a general map/reduce framework
regress library: Linear and logistic regression through automatic differentiation
regression-simple library: Simple linear and quadratic regression
reservoir library: Unweighted reservoir sampling
resistor-cube program: Compute total resistance of a cube of resistors
rings library: Ring-like objects.
rivers library: Rivers are like Streams, but different.
roots library: Root-finding algorithms (1-dimensional)
rounded library and test: Correctly-rounded arbitrary-precision floating-point arithmetic
rounded-hw library, tests and benchmark: Directed rounding for built-in floating types
rounding library: Explicit floating point rounding mode wrappers
rsagl-math library: The RogueStar Animation and Graphics Library: Mathematics
ruff library: relatively useful fractal functions
rvar library: Random Variables
safe-decimal library and tests: Safe and very efficient arithmetic operations on fixed decimal point numbers
safe-tensor library: Dependently typed tensor algebra
sampling library, test and benchmark: Sample values from collections.
sbv library, tests and benchmarks: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
science-constants library: Mathematical/physical/chemical constants
science-constants-dimensional library: Mathematical/physical/chemical constants
sde-solver library: Distributed SDE solver
search library and test: Infinite search in finite time with Hilbert's epsilon
semigroups library: Anything that associates
semigroups-actions library: Semigroups actions
semilattices library and test: Semilattices
semiring program: Semirings, ring-like structures used for dynamic programming applications
semiring-simple library: A module for dealing with semirings.
semirings library: two monoids as one, in holy haskimony
set-cover library, programs, test and benchmark: Solve exact set cover problems like Sudoku, 8 Queens, Soma Cube, Tetris Cube
sfmt library: SIMD-oriented Fast Mersenne Twister(SFMT) binding.
SG library: Small geometry library for dealing with vectors and collision detection
sgd library and test: Stochastic gradient descent library
SGplus library: (updated) Small geometry library for dealing with vectors and collision detection
shapes-math library, program and test: faster vector/matrix math using unboxed numbers and Template Haskell
siggy-chardust library and tests: Rounding rationals to significant digits and decimal places.
sigma-ij library and program: Thom polynomials of second order Thom-Boardman singularities
sign library and test: Arithmetic over signs and sets of signs
simd library: simple interface to GHC's SIMD instructions
simple-smt library: A simple way to interact with an SMT solver process.
simple-vec3 library, tests and benchmark: Three-dimensional vectors of doubles with basic operations
simplex-basic library and test: Very basic simplex implementation.
singletons-presburger library and program: Presburger Arithmetic Solver for GHC Type-level natural numbers with Singletons package.
singular-factory library and test: Multivariate polynomial factorization via bindings to Singular-factory
sloane program: A command line interface to Sloane's OEIS.
Smooth library: A tiny, lazy SMT solver
softfloat-hs library: Haskell bindings for SoftFloat
som library and test: Self-Organising Maps
sparse-lin-alg library and test: Effective linear algebra on sparse matrices
sparse-tensor library and test: typesafe tensor algebra library
spatial-math library and tests: 3d math including quaternions/euler angles/dcms and utility functions
spatial-rotations library and test: Rotate about any suitable axis
spe library and test: Combinatorial species lite
species library: Computational combinatorial species
spectral-clustering library: Library for spectral clustering.
speedy-slice library and tests: Speedy slice sampling.
spherical library: Geometry on a sphere
spline3 program and tests: A parallel implementation of the Sorokina/Zeilfelder spline scheme.
splines library, test and benchmark: B-Splines, other splines, and NURBS.
spsa library, test and benchmark: Simultaneous Perturbation Stochastic Approximation Optimization Algorithm
squares library: The double category of Hask functors and profunctors
stable-maps library: Heterogeneous maps keyed by StableNames
staf library: Numerical statistics for Foldable containers
statistics library and test: A library of statistical types, data, and functions
statistics-dirichlet library: Functions for working with Dirichlet densities and mixtures on vectors.
statistics-fusion library: An implementation of high performance, minimal statistics functions
statistics-hypergeometric-genvar library: Random variate generation from hypergeometric distributions
statistics-linreg library: Linear regression between two samples, based on the 'statistics' package.
statistics-skinny library and test: A library of statistical types, data, and functions
stats program: command line statistics
stern-brocot library, test and benchmark: Positive rational numbers represented as paths in the Stern-Brocot tree
stochastic library and tests: Monadic composition of probabilistic functions and sampling.
stp library and program: Simple Theorem Prover
svm-light-utils library: Parsers and formatters for the SVMlight input file format
sym library and test: Permutations, patterns, and statistics
sym-plot library: Plot permutations; an addition to the sym package
symengine library and test: SymEngine symbolic mathematics engine for Haskell
symengine-hs library, program and test: SymEngine symbolic mathematics engine for Haskell
tau library: Tau, the ratio between any circle's circumference and radius.
tensor library and tests: A completely type-safe library for linear algebra
terntup library and test: a ternary library
TeX-my-math library, program and test: ...
th-cas library and test: Compile-time CAS(Computer Algebra System)
theta-functions library: Theta-functions implemented as trigonometric series
tilings library: substitution tilings
tropical library: A library for tropical mathematics.
turing-machines library: A simple simulator for Turing machines
turingMachine library and tests: An implementation of Turing Machine and Automaton
type-natural library and test: Type-level natural and proofs of their properties.
type-settheory library: Sets and functions-as-relations in the type system
uncertain library: Manipulating numbers with inherent experimental/measurement uncertainty
uniqueness-periods-vector library: ...
uniqueness-periods-vector-common library: Generalization of the dobutokO-poetry-general package functionality
uniqueness-periods-vector-examples library and programs: Usage examples for the uniqueness-periods-vector series of packages
uniqueness-periods-vector-filters library: A library allows to change the structure of the 'RealFrac' function output.
uniqueness-periods-vector-general library: Some kind of the optimization approach to data inner structure.
uniqueness-periods-vector-properties library: Metrices for the maximum element for the uniqueness-periods-vector packages family.
uniqueness-periods-vector-stats library: A very basic descriptive statistics.
units library and test: A domain-specific type system for dimensional analysis
unittyped library and test: An extendable library for type-safe computations including units.
variable-precision library: variable-precision floating point
Vec library: Fixed-length lists and low-dimensional linear algebra.
Vec-Boolean library: Provides Boolean instances for the Vec package
Vec-OpenGLRaw library: Instances and functions to interoperate Vec and OpenGL.
Vec-Transform library: This package is obsolete
vect library: A low-dimensional linear algebra library, tailored to computer graphics.
vect-floating library: A low-dimensional linear algebra library, operating on the Floating typeclass
vect-floating-accelerate library: Accelerate instances for vect-floating types
vect-opengl library: OpenGL support for the `vect' low-dimensional linear algebra library.
vector-fftw library and test: A binding to the fftw library for one-dimensional vectors.
vector-space : Vector & affine spaces, linear maps, and derivatives
vector-space-map library and test: vector-space operations for finite maps using Data.Map
vector-space-opengl library and test: Instances of vector-space classes for OpenGL types
vector-space-points library: A type for points, as distinct from vectors.
vowpal-utils library: Vowpal Wabbit utilities
WeberLogic library and program: Logic interpreter
wigner-symbols library, test and benchmark: CG coefficients and Wigner symbols.
word library and test: Words of arbitrary size
xorshift library: Haskell implementation of the xorshift random generator.
xorshift-plus library, tests and benchmark: Simple implementation of xorshift+ PRNG
Xorshift128Plus library: Pure haskell implementation of xorshift128plus random number generator.
yhseq library, program and test: Calculation of YH sequence system
yices library: Haskell programming interface to Yices SMT solver
yices-easy library: Simple interface to the Yices SMT (SAT modulo theories) solver.
yices-painless library: An embedded language for programming the Yices SMT solver
z3 library, program and test: Bindings for the Z3 Theorem Prover
ZEBEDDE library: Polymer growth simulation method

Mathematics

chainweb-mining-client program: Mining Client for Kadena Chainweb
digraph library and test: Directed Graphs
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals
matroid library and test: matroid (combinatorial pre-geometries) library
moving-averages library and test: This is a library for calculating moving averages on lists of numbers.
numhask library and test: A numeric class hierarchy.
numhask-hedgehog library and test: Laws and tests for numhask
numhask-prelude library and test: A numeric prelude
numhask-space library and test: Numerical spaces.
numhask-test library and test: Laws and tests for numhask
ordered library: A definition of Posets.
plankton library: The core of a numeric prelude, taken from numhask
semirings library: two monoids as one, in holy haskimony
tower library and test: A numeric tower

Maths

colour-space library: Instances of the manifold-classes for colour types
LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals
planar-graph library: A representation of planar graphs
semirings library: two monoids as one, in holy haskimony

Matrix

picedit library and program: simple image manipulation functions

Media

ffmpeg-tutorials programs: Tutorials on ffmpeg usage to play video/audio
gstreamer library: Binding to the GStreamer open source multimedia framework.
hoovie program: Haskell Media Server
hs-ffmpeg library: Bindings to FFMPEG library
mediabus library and test: Multimedia streaming on top of Conduit
mpris library: Interface for MPRIS
pontarius-mediaserver program: Extended Personal Media Network (XPMN) media server
pontarius-xpmn library: Extended Personal Media Network (XPMN) library
temporal-media library: data types for temporal media
xine library: Bindings to xine-lib

Medical

dicom library: ...
isdicom library, program and test: An executable and library to determine if a file is a DICOM file

Megaparsec

headed-megaparsec library: More informative parser

Memoization

XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Memory

membrain library and tests: Type-safe memory units
memory library and test: memory and related abstraction stuff

Message-Oriented

courier library, programs and test: A message-passing library for simplifying network applications

Message-Oriented Middleware

patterns library: Common patterns in message-oriented applications
stomp-conduit library: Stompl Conduit Client
stomp-patterns library: Stompl MOM Stomp Patterns
stomp-queue library: Stompl Client Library
stompl library: Stomp Parser and Utilities

Metalanguage

ebnf-bff library and program: Parser combinators & EBNF, BFFs!

Metrics

arbor-monad-metric library and test: Core metric library for publishing metrics.
arbor-monad-metric-datadog library and test: Metric library backend for datadog.
metricsd-client library: Client for the metrics aggregator Metricsd
nagios-check library and test: Package for writing monitoring plugins
network-metrics library: Send metrics to Ganglia, Graphite, and statsd.
prometheus library: Prometheus Haskell Client
statsdi library and test: A lovely [Dog]StatsD implementation

Microcontroller

STLinkUSB library: STLink USB interface in Haskell
STM32-Zombie library: control a STM32F103 microcontroller
STM32F103xx-SVD library: Definition for Peripherals,Registers and Fields from STM32F103xx.svd
SVD2HS library: translate a SVD of a Microcontroller to Haskell tables

Microservice

boots-cloud library: Factory for quickly building a microservice

Middleware

Hermes library: Message-based middleware layer
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
persistent-map library: A thread-safe (STM) persistency interface for finite map types.

Minecraft

mcpi library and programs: Connect to MineCraft running on a Raspberry PI.
minecraft-data library: a DSL for generating minecraft commands and levels

Miscellaneous

reexport-crypto-random library

Miso

miso library and programs: A tasty Haskell front-end framework
miso-examples programs: A tasty Haskell front-end framework

Mit

pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.

Mobile

android-activity library: Turn regular Haskell programs into Android Activities
push-notify library: A server-side library for sending push notifications.
push-notify-apn library, program and test: Send push notifications to mobile iOS devices
push-notify-ccs library: ...
push-notify-general library: A general library for sending/receiving push notif. through dif. services.

Model

algebra-checkers library: Model and test API surfaces algebraically
boardgame library, program and test: Modeling boardgames
clafer library, program and tests: Compiles Clafer models to other formats: Alloy, JavaScript, JSON, HTML, Dot.
claferIG library, program and test: claferIG is an interactive tool that generates instances of Clafer models.
hCM library, program and test: Conceptual modelling support for Haskell

Modules

cabal-auto-expose library: Build time library that autodetects exposed modules

Monad

boots library and test: IoC Monad in Haskell
colorful-monoids library and test: Styled console text output using ANSI escape sequences.
cond library: Basic conditional and boolean operators with monadic variants.
console-style library: Styled console text output using ANSI escape sequences.
except-exceptions library: Safely deal with exceptions in ExceptT
exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
exception-mtl library: Exception monad transformer instances for mtl classes.
exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
exceptions library and test: Extensible optionally-pure exceptions
failable library: A 'Failable' error monad class to unify failure across monads that can fail
indexed-free library: indexed monads for free
monad-connect library: Transformer for TCP connection with TLS and SOCKS support
monad-hash library and test: Monad transformer for incremental hashing
monad-memo library, test and benchmark: Memoization monad transformer
monad-supply library: Stateful supply monad
MonadCompose library: Methods for composing monads.
monadic-recursion-schemes library and test: Recursion Schemes for Monadic version.
pipes-errors library: Integration between pipes and errors
set-monad library: Set monad
supermonad library and test: Plugin and base library to support supermonads in Haskell
tagged-exception-core library: Reflect exceptions using phantom types.
tangle library: HKD record builder
time-out library and test: Timers, timeouts, alarms, monadic wrappers
unlift library: Typeclass for monads that can be unlifted to arbitrary base monads
views library: Views allow you to run a State monad on part of a state.

Monad Transformers

Kawaii-Parser library: A simple parsing library.

Monadic Regions

IOR library: Region based resource management for the IO monad.
monad-stlike-io library: ST-like monad capturing variables to regions and supporting IO.
monad-stlike-stm library: ST-like monad capturing variables to regions and supporting STM.
regional-pointers library: Regional memory pointers
regions library: Provides the region monad for safely opening and working with scarce resources.
regions-monadsfd library: Monads-fd instances for the RegionT monad transformer
regions-monadstf library: Monads-tf instances for the RegionT monad transformer
regions-mtl library: mtl instances for the RegionT monad transformer
safer-file-handles library: Type-safe file handling
safer-file-handles-bytestring library: Extends safer-file-handles with ByteString operations
safer-file-handles-text library: Extends safer-file-handles with Text operations
usb-safe library: Type-safe communication with USB devices.

MonadIO

stm-lifted library: Software Transactional Memory lifted to MonadIO

Monads

abstract-par library: Type classes generalizing the functionality of the 'monad-par' library.
atrans library: A small collection of monad (transformer) instances.
backward-state library: A state monad that runs the state in reverse through the computation
category-extras library: A meta-package documenting various packages inspired by category theory
compose-trans library: Composable monad transformers
Consumer library: A monad and monad transformer for consuming streams
control-monad-exception library: Explicitly typed, checked exceptions with stack traces
control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
control-monad-failure library: A class for monads which can fail with an error. (deprecated)
control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
control-monad-free library: Free monads and monad transformers
contstuff library: Fast, easy to use CPS-based monad transformers
contstuff-monads-tf library: ContStuff instances for monads-tf transformers (deprecated)
contstuff-transformers library: Deprecated interface between contstuff 0.7.0 and the transformers package
csp library and test: Discrete constraint satisfaction problem (CSP) solver.
data-accessor-monadLib library: Accessor functions for monadLib's monads
database-study library: Demonstrate how a database can be implemented the functional way
effect-monad library: ...
effective-aspects library and test: A monadic embedding of aspect oriented programming
effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...
effects library: Computational Effects
effects-parser library: Parser Effect for the Control.Effects Library
either library and test: Combinators for working with sums
exotic-list-monads library and test: Non-standard monads on lists and non-empty lists
explicit-sharing library: Explicit Sharing of Monadic Effects
extensible-skeleton library and test: Operational-based extensible effect library
failure library: A simple type class for success/failure computations. (deprecated)
free library: Monads for free
free-algebras library and test: Free algebras
free-category library, test and benchmark: efficient data types for free categories and arrows
free-game library: Create games for free
free-vl library, program and test: van Laarhoven encoded Free Monad with Extensible Effects
graphted library: Graph indexed monads.
hdph library and programs: Haskell distributed parallel Haskell
hofix-mtl library: defining @mtl@-ready monads as * -> * fixed-points
hsmisc library and test: A collection of miscellaneous modules
iException library: Version of Control.Exception using InterleavableIO.
infinite-search library: Exhaustively searchable infinite sets.
interleavableGen program: Generates a version of a module using InterleavableIO
interleavableIO library: Use other Monads in functions that asks for an IO Monad.
ixmonad library: Embeds effect systems into Haskell using parameteric effect monads
kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
lazyio library and program: Run IO actions lazily while respecting their order
level-monad library: Non-Determinism Monad for Level-Wise Search
meta-par library: Provides the monad-par interface, but based on modular scheduler "mix-ins".
monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
monad-dijkstra library and tests: A monad transformer for weighted graph searches
monad-interleave library: Monads with an unsaveInterleaveIO-like operation.
monad-par library and test: A library for parallel programming based on a monad
monad-par-extras library: Combinators and extra features for Par monads
monad-parallel library: Parallel execution of monadic computations
monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
monad-products library: Monad products
monad-ran library: Fast monads and monad transformers
monad-skeleton library: Monads of program skeleta
monad-st library: Provides a MonadST class
monad-state library: Utility library for monads, particularly those involving state.
monad-stlike-io library: ST-like monad capturing variables to regions and supporting IO.
monad-stlike-stm library: ST-like monad capturing variables to regions and supporting STM.
monad-tx library: A transactional state monad.
MonadLab library and program: Automatically generate layered monads
monadLib library: A collection of monad transformers.
monadLib-compose library: Arrow-like monad composition for monadLib.
monadloc library: A class for monads which can keep a monadic call trace
monadloc-pp program: A preprocessor for generating monadic call traces
mstate library: MState: A consistent State monad for concurrent applications.
mtl-c library: Very strict CPS'd transformers
nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
operational library and program: Implementation of difficult monads made easy with operational semantics.
pqueue-mtl library: Fully encapsulated monad transformers with queuelike functionality.
probability library: Probabilistic Functional Programming
representable-functors library: Representable functors
representable-tries library: Tries from representations of polynomial functors
resumable-exceptions library: A monad transformer for resumable exceptions
rhythm-game-tutorial programs: Haskell rhythm game tutorial
stateful-mtl library: Typeclass instances for monad transformer stacks with an ST thread at the bottom.
statethread library: The ST monad and STRefs
STMonadTrans library and test: A monad transformer version of the ST monad
stream-monad library and program: Simple, Fair and Terminating Backtracking Monad
tagged-exception-core library: Reflect exceptions using phantom types.
Tainted library: Tainted type, and associated operations
transformers-compose library: Arrow-like / category-like composition for transformers.
tree-monad library: Non-Determinism Monad for Tree Search
TreeT library: Transformer for Data.Tree
wl-pprint-extras library and test: A free monad based on the Wadler/Leijen pretty printer
wl-pprint-terminfo library: A color pretty printer with terminfo support
ZFS library: Oleg's Zipper FS

Money

safe-money library and test: Type-safe and lossless encoding and manipulation of money, fiat currencies, ...
safe-money-aeson library and test: Instances from the aeson library for the safe-money library.
safe-money-cereal library and test: Instances from the cereal library for the safe-money library.
safe-money-serialise library and test: Instances from the serialise library for the safe-money library.
safe-money-store library and test: Instances from the store library for the safe-money library.
safe-money-xmlbf library and test: Instances from the xmlbf library for the safe-money library.

Monitoring

alerta library: Bindings to the alerta REST API
hriemann library, program and test: A Riemann Client for Haskell
instana-haskell-trace-sdk library, programs and tests: SDK for adding custom Instana tracing support to Haskell applications.
metricsd-client library: Client for the metrics aggregator Metricsd
nagios-check library and test: Package for writing monitoring plugins
network-metrics library: Send metrics to Ganglia, Graphite, and statsd.
pagerduty library: Client library for PagerDuty Integration and REST APIs.
prometheus library: Prometheus Haskell Client
statgrab library: Collect system level metrics and statistics

Mtl

cps-except library: ExceptT replacement in CPS style

Multimedia

manatee-mplayer library and programs: Mplayer client extension for Manatee.
movie-monad program: Plays videos using GStreamer and GTK+.
mpvguihs program: A minimalist mpv GUI written in I/O heavy Haskell.

Multimedia Player

manatee-mplayer library and programs: Mplayer client extension for Manatee.
movie-monad program: Plays videos using GStreamer and GTK+.

Mumeric.Statistics

hstats library: Statistical Computing in Haskell

Murmur

murmur3 library and test: Pure Haskell implementation of the MurmurHash3 x86_32 algorithm.

Music

abcnotation library: Haskell representation and parser for ABC notation.
algorithmic-composition-additional library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-basic library: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-complex library: Helps to create more complex experimental music from a file (especially timbre).
algorithmic-composition-frequency-shift library: Helps to create experimental music. Uses SoX inside.
alsa library: Binding to the ALSA Library API.
alsa-core library: Binding to the ALSA Library API (Exceptions).
alsa-gui programs: Some simple interactive programs for sending MIDI control messages via ALSA
alsa-midi library and programs: Bindings for the ALSA sequencer API (MIDI stuff)
alsa-pcm library and programs: Binding to the ALSA Library API (PCM audio).
alsa-pcm-tests programs: Tests for the ALSA audio signal library.
alsa-seq library and programs: Binding to the ALSA Library API (MIDI sequencer).
alsa-seq-tests programs: Tests for the ALSA sequencer library.
Aoide library: A simple music library with the capability of generating .ly and .mid files.
billboard-parser library and program: A parser for the Billboard chord dataset
boopadoop library, program and test: Mathematically sound sound synthesis
conductive-base library: a library for live coding and real-time musical applications
conductive-clock library: a library for displaying musical time in a terminal-based clock
conductive-hsc3 library: a library with examples of using Conductive with hsc3
conductive-song library: a library of functions which are useful for composing music
csound-catalog library: a gallery of Csound instruments.
csound-expression library: library to make electronic music
csound-expression-dynamic library: dynamic core for csound-expression library
csound-expression-opcodes library: opcodes for the library csound-expression
csound-expression-typed library: typed core for the library csound-expression
csound-sampler library: A musical sampler based on Csound
dobutokO-effects library: A library to deal with SoX effects and possibilities
dobutokO2 library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
dobutokO3 library: Helps to create more complex experimental music from a file (especially timbre).
Euterpea library: Library for computer music research and education
fadno library and test: Minimal library for music generation and notation
fadno-xml library: XML/XSD combinators/schemas/codegen
FComp library and program: Compose music
free-v-bucks-generator-ps4-no-survey program: Spam
hamusic library and programs: Library to handle abstract music
HarmTrace program: Harmony Analysis and Retrieval of Music
HarmTrace-Base library and test: Parsing and unambiguously representing musical chords.
haskore library, programs and test: The Haskore Computer Music System
haskore-realtime library: Routines for realtime playback of Haskore songs
haskore-supercollider library and programs: Haskore back-end for SuperCollider
haskore-synthesizer library and program: Music rendering coded in Haskell
haskore-vintage library: The February 2000 version of Haskore.
hCsound library: interface to CSound API
hemkay program: A module music mixer and player
hemkay-core library: A device independent module music mixer
hly library: Haskell LilyPond
hmidi library: Binding to the OS level MIDI services
hmt library: Haskell Music Theory
hmt-diagrams library: Haskell Music Theory Diagrams
hts library: Haskell Music Typesetting
instrument-chord library: Render Instrument Chords
Jazzkell library: Library for modeling jazz improvisation.
launchpad-control library and program: High and low-level interface to the Novation Launchpad midi controller.
lilypond library: Bindings to Lilypond
live-sequencer library and programs: Live coding of MIDI music
lord library, program and test: A command line interface to online radios.
loris library: interface to Loris API
mezzo library and test: Typesafe music composition
midair library: Hot-swappable FRP
midi library and test: Handling of MIDI messages and files
midi-alsa library: Convert between datatypes of the midi and the alsa packages
midi-music-box program: Convert MIDI file to music box punch tape
midi-util library: Utility functions for processing MIDI files
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
music-articulation library: Abstract representation of musical articulation.
music-diatonic library: Implementation of basic western musical theory objects.
music-dynamics library: Abstract representation of musical dynamics.
music-dynamics-literal library: Overloaded dynamics literals.
music-graphics library: Diagrams-based visualization of musical data structures.
music-parts library: Musical instruments, parts and playing techniques.
music-pitch library: Musical pitch representation.
music-pitch-literal library: Overloaded pitch literals.
music-preludes library, programs and test: Some useful preludes for the Music Suite.
music-score library: Musical score and part representation.
music-sibelius library: Interaction with Sibelius.
music-suite library: A set of libraries for composition, analysis and manipulation of music.
musicScroll library and program: Supply your tunes info without leaving your music player.
musicxml library: MusicXML format encoded as Haskell type and functions of reading and writting.
musicxml2 library: A representation of the MusicXML format.
netease-fm library and program: NetEase Cloud Music FM client in Haskell.
reactive-balsa library: Programmatically edit MIDI events via ALSA and reactive-banana
reactive-jack library: Process MIDI events via reactive-banana and JACK
reactive-midyim library: Process MIDI events via reactive-banana
sharc-timbre library: ...
streamed library: Programmatically edit MIDI event streams via ALSA
synthesizer-alsa library and programs: Control synthesizer effects via ALSA/MIDI
synthesizer-llvm library, programs and test: Efficient signal processing using runtime compilation
synthesizer-midi library, program and test: Render audio signals from MIDI files or realtime messages
temporal-csound library: library to make electronic music, ...
temporal-media library: data types for temporal media
temporal-music-notation library: music notation
temporal-music-notation-demo library: generates midi from score notation.
temporal-music-notation-western library: western music notation
vivid library: Sound synthesis with SuperCollider
vivid-osc library and test: Open Sound Control encode/decode
vivid-supercollider library and test: Implementation of SuperCollider server specifications
x-dsp library: A embedded DSL for manipulating DSP languages in Haskell
YampaSynth programs: Software synthesizer
zmidi-core library: Read and write MIDI files.
zmidi-score library: Representing MIDI a simple score.

MusicBrainz

musicbrainz-email library, programs and test: Send an email to all MusicBrainz editors

Mutable State

control-dsl library and test: An alternative to monads in do-notation
do-notation-dsl library and test: An alternative to monads
foreign-var library: Encapsulating mutatable state in external libraries

N2O

n2o library and test: Abstract Protocol Loop
n2o-nitro library: Nitro Elements, Events and Actions
n2o-protocols library: N2O Protocols Starter Pack
n2o-web library: N2O adapter for WebSockets

NA

tempo library, programs and test: Command-line tool to log time-tracking information into JIRA Tempo plugin

Naqsha

naqsha library and test: A library for working with anything map related.

Natural Language

microsoft-translator library: Bindings to the Microsoft Translator API

Natural Language Processing

adict library and test: Approximate dictionary searching
alpino-tools library and programs: Alpino data manipulation tools
antfarm library, program and test: Referring expressions for definitions
arpa library and program: Library for reading ARPA n-gram models
ast-path library and test: vocabulary representation for predicting program properties
brillig library and program: Simple part of speech tagger
cabocha library and test
chatter library, programs and test: A library of simple NLP algorithms.
cndict library: Chinese/Mandarin <-> English dictionary, Chinese lexer.
colada library and program: Colada implements incremental word class class induction using online LDA
concraft library and program: Morphological disambiguation based on constrained CRFs
concraft-hr library and program: Part-of-speech tagger for Croatian
concraft-pl library and program: Morphological tagger for Polish
corenlp-parser library: Launches CoreNLP and parses the JSON output
crf-chain2-tiers library: Second-order, tiered, constrained, linear conditional random fields
data-named library: Data types for named entities
delta-h library and program: Online entropy-based model of lexical category acquisition.
detrospector program: Markov chain text generator
DP library: Pragmatic framework for dynamic programming
electrum-mnemonic library and test: easy to remember mnemonic for a high-entropy value
ENIG library and test: Auto Korean conjugator/adjustor/adopter/converter
estimators library: Tool for managing probability estimation
FM-SBLEX programs: A set of computational morphology tools for Swedish diachronic lexicons.
fullstop library, program and test: Simple sentence segmenter
GenI library, program and test: A natural language generator (specifically, an FB-LTAG surface realiser)
geni-gui library and program: GenI graphical user interface
geni-util library and program: Companion tools for use with the GenI surface realiser
geniconvert program: Conversion utility for the GenI generator
geniserver library and program: Simple HTTP server for GenI results
gf library, programs and test: Grammatical Framework
haskell-postal library and test: Haskell binding for the libpostal library
hext library and program: a text classification library
hist-pl library and program: Umbrella package for the historical dictionary of Polish
hist-pl-dawg library: A generic, DAWG-based dictionary
hist-pl-fusion library: Merging historical dictionary with PoliMorf
hist-pl-lexicon library: A binary representation of the historical dictionary of Polish
hist-pl-lmf library: LMF parsing for the historical dictionary of Polish
hist-pl-transliter library: A simple EDSL for transliteration rules
hist-pl-types library: Types in the historical dictionary of Polish
hs-gizapp library: Haskell wrapper around the GIZA++ toolkit.
InternedData library, test and benchmark: Data interning (with compact regions where possible)
koellner-phonetic library and test: "map German words to code representing pronunciation"
language-spelling library and test: Various tools to detect/correct mistakes in words
lda library: Online Latent Dirichlet Allocation
libGenI library: A natural language generator (specifically, an FB-LTAG surface realiser)
LinguisticsTypes library, test and benchmark: Collection of types for natural language
logfloat library: Log-domain floating point numbers
luis-client library: An unofficial client for the LUIS NLP service.
mecab library: A Haskell binding to MeCab
minimorph library and test: English spelling functions with an emphasis on simplicity.
miniutter library and test: Simple English clause creation from arbitrary words
moan library: Language-agnostic analyzer for positional morphosyntactic tags
monad-ox library: Monad for observation extraction
morfette program: A tool for supervised learning of morphology
morfeusz library: Bindings to the morphological analyser Morfeusz
multext-east-msd library: MULTEXT-East morphosyntactic descriptors
mystem library and program: Bindings for Mystem morphological analyzer executabe
nanq program: Performs 漢字検定 (Japan Kanji Aptitude Test) level analysis on given Kanji.
NaturalLanguageAlphabets library, test and benchmark: Simple scoring schemes for word alignments
nerf library and program: Nerf, a named entity recognition tool based on linear-chain CRFs
NGrams program: Simple application for calculating n-grams using Google.
nkjp library and programs: Manipulating the National Corpus of Polish (NKJP)
nlp-scores library: Scoring functions commonly used for evaluation in NLP and IR
nlp-scores-scripts programs: NLP scoring command-line programs
numerals library, test and benchmark: Convert numbers to number words
numerals-base library and test: Convert numbers to number words
partage library and test: Parsing factorized
penn-treebank library: Tools for manipulating the Penn TreeBank
penntreebank-megaparsec library and test: Parser combinators for trees in the Penn Treebank format
phonetic-code library: Phonetic codes: Soundex and Phonix
polh-lexicon library and programs: A library for manipulating the historical dictionary of Polish (deprecated)
polimorf library: Handling the PoliMorf dictionary
pstemmer library and program: A Haskell Implementation of the Porter Stemmer
PTQ programs: An implementation of Montague's PTQ.
punkt library and test: Multilingual unsupervised sentence tokenization with Punkt.
rake library: Rapid Automatic Keyword Extraction (RAKE)
romkan library and test: Japanese Romaji <-> Japanese Kana conversion library
semiring program: Semirings, ring-like structures used for dynamic programming applications
sentiwordnet-parser library: Parser for the SentiWordNet tab-separated file
sequor library and programs: A sequence labeler based on Collins's sequence perceptron.
snowball library, test and benchmark: Bindings to the Snowball library.
Sonnex library and test: Sonnex is an alternative to Soundex for french language
stemmer library: Haskell bindings to the Snowball stemming library.
swift-lda library: Online sampler for Latent Dirichlet Allocation
tagset-positional library: Positional tags and tagsets
textocat-api library and test: Unofficial Haskell SDK for Textocat API -- http://textocat.com
tokenize library and benchmark: Simple tokenizer for English text.
toktok library and programs
tsuntsun program: Interacts with tesseract to ease reading of RAW Japanese manga.
WordNet library: Haskell interface to the WordNet database
WordNet-ghc74 library: Haskell interface to the WordNet database
XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Natural-language-processing

ngram library and program: Ngram models for compressing and classifying text.

Neovim

chromatin library, program and tests: neovim package manager
proteome library, program and tests: neovim project manager
ribosome library: api extensions for nvim-hs
ribosome-root test: api extensions for nvim-hs
ribosome-test library: test helpers for ribosome

Net

iexcloud library and test: Library for the IEX Trading API
stocks library and test: Library for the IEX Trading API
Weather library: Library for interacting with the Weather Underground JSON API.

Network

adb library: Android Debug Bridge (ADB) protocol
adhoc-network library: Ad-hoc P2P network protocol
agentx library and program: AgentX protocol for write SNMP subagents
AGI library: A library for writing AGI scripts for Asterisk
airbrake library: An Airbrake notifier for Haskell
alpaca-netcode library and test: Rollback/replay NetCode for realtime, deterministic, multiplayer games.
altsvc library and test: HTTP Alternative Services
amazon-emailer programs: A queue daemon for Amazon's SES with a PostgreSQL table as a queue.
amazon-emailer-client-snap library: Client library for amazon-emailer daemon
amazonka library and test: Comprehensive Amazon Web Services SDK.
amazonka-alexa-business library and test: Amazon Alexa For Business SDK.
amazonka-apigateway library and test: Amazon API Gateway SDK.
amazonka-application-autoscaling library and test: Amazon Application Auto Scaling SDK.
amazonka-appstream library and test: Amazon AppStream SDK.
amazonka-appsync library and test: Amazon AppSync SDK.
amazonka-athena library and test: Amazon Athena SDK.
amazonka-autoscaling library and test: Amazon Auto Scaling SDK.
amazonka-autoscaling-plans library and test: Amazon Auto Scaling Plans SDK.
amazonka-batch library and test: Amazon Batch SDK.
amazonka-budgets library and test: Amazon Budgets SDK.
amazonka-certificatemanager library and test: Amazon Certificate Manager SDK.
amazonka-certificatemanager-pca library and test: Amazon Certificate Manager Private Certificate Authority SDK.
amazonka-cloud9 library and test: Amazon Cloud9 SDK.
amazonka-clouddirectory library and test: Amazon CloudDirectory SDK.
amazonka-cloudformation library and test: Amazon CloudFormation SDK.
amazonka-cloudfront library and test: Amazon CloudFront SDK.
amazonka-cloudhsm library and test: Amazon CloudHSM SDK.
amazonka-cloudhsmv2 library and test: Amazon CloudHSM V2 SDK.
amazonka-cloudsearch library and test: Amazon CloudSearch SDK.
amazonka-cloudsearch-domains library and test: Amazon CloudSearch Domain SDK.
amazonka-cloudtrail library and test: Amazon CloudTrail SDK.
amazonka-cloudwatch library and test: Amazon CloudWatch SDK.
amazonka-cloudwatch-events library and test: Amazon CloudWatch Events SDK.
amazonka-cloudwatch-logs library and test: Amazon CloudWatch Logs SDK.
amazonka-codebuild library and test: Amazon CodeBuild SDK.
amazonka-codecommit library and test: Amazon CodeCommit SDK.
amazonka-codedeploy library and test: Amazon CodeDeploy SDK.
amazonka-codepipeline library and test: Amazon CodePipeline SDK.
amazonka-codestar library and test: Amazon CodeStar SDK.
amazonka-cognito-identity library and test: Amazon Cognito Identity SDK.
amazonka-cognito-idp library and test: Amazon Cognito Identity Provider SDK.
amazonka-cognito-sync library and test: Amazon Cognito Sync SDK.
amazonka-comprehend library and test: Amazon Comprehend SDK.
amazonka-config library and test: Amazon Config SDK.
amazonka-connect library and test: Amazon Connect Service SDK.
amazonka-core library and test: Core data types and functionality for Amazonka libraries.
amazonka-cost-explorer library and test: Amazon Cost Explorer Service SDK.
amazonka-cur library and test: Amazon Cost and Usage Report Service SDK.
amazonka-datapipeline library and test: Amazon Data Pipeline SDK.
amazonka-devicefarm library and test: Amazon Device Farm SDK.
amazonka-directconnect library and test: Amazon Direct Connect SDK.
amazonka-discovery library and test: Amazon Application Discovery Service SDK.
amazonka-dms library and test: Amazon Database Migration Service SDK.
amazonka-ds library and test: Amazon Directory Service SDK.
amazonka-dynamodb library and test: Amazon DynamoDB SDK.
amazonka-dynamodb-dax library and test: Amazon DynamoDB Accelerator (DAX) SDK.
amazonka-dynamodb-streams library and test: Amazon DynamoDB Streams SDK.
amazonka-ec2 library and test: Amazon Elastic Compute Cloud SDK.
amazonka-ecr library and test: Amazon EC2 Container Registry SDK.
amazonka-ecs library and test: Amazon EC2 Container Service SDK.
amazonka-efs library and test: Amazon Elastic File System SDK.
amazonka-elasticache library and test: Amazon ElastiCache SDK.
amazonka-elasticbeanstalk library and test: Amazon Elastic Beanstalk SDK.
amazonka-elasticsearch library and test: Amazon Elasticsearch Service SDK.
amazonka-elastictranscoder library and test: Amazon Elastic Transcoder SDK.
amazonka-elb library and test: Amazon Elastic Load Balancing SDK.
amazonka-elbv2 library and test: Amazon Elastic Load Balancing SDK.
amazonka-emr library and test: Amazon Elastic MapReduce SDK.
amazonka-fms library and test: Amazon Firewall Management Service SDK.
amazonka-gamelift library and test: Amazon GameLift SDK.
amazonka-glacier library and test: Amazon Glacier SDK.
amazonka-glue library and test: Amazon Glue SDK.
amazonka-greengrass library and test: Amazon Greengrass SDK.
amazonka-guardduty library and test: Amazon GuardDuty SDK.
amazonka-health library and test: Amazon Health APIs and Notifications SDK.
amazonka-iam library and test: Amazon Identity and Access Management SDK.
amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
amazonka-importexport library and test: Amazon Import/Export SDK.
amazonka-inspector library and test: Amazon Inspector SDK.
amazonka-iot library and test: Amazon IoT SDK.
amazonka-iot-analytics library and test: Amazon IoT Analytics SDK.
amazonka-iot-dataplane library and test: Amazon IoT Data Plane SDK.
amazonka-iot-jobs-dataplane library and test: Amazon IoT Jobs Data Plane SDK.
amazonka-kinesis library and test: Amazon Kinesis SDK.
amazonka-kinesis-analytics library and test: Amazon Kinesis Analytics SDK.
amazonka-kinesis-firehose library and test: Amazon Kinesis Firehose SDK.
amazonka-kinesis-video library and test: Amazon Kinesis Video Streams SDK.
amazonka-kinesis-video-archived-media library and test: Amazon Kinesis Video Streams Archived Media SDK.
amazonka-kinesis-video-media library and test: Amazon Kinesis Video Streams Media SDK.
amazonka-kms library and test: Amazon Key Management Service SDK.
amazonka-lambda library and test: Amazon Lambda SDK.
amazonka-lex-models library and test: Amazon Lex Model Building Service SDK.
amazonka-lex-runtime library and test: Amazon Lex Runtime Service SDK.
amazonka-lightsail library and test: Amazon Lightsail SDK.
amazonka-marketplace-analytics library and test: Amazon Marketplace Commerce Analytics SDK.
amazonka-marketplace-entitlement library and test: Amazon Marketplace Entitlement Service SDK.
amazonka-marketplace-metering library and test: Amazon Marketplace Metering SDK.
amazonka-mechanicalturk library and test: Amazon Mechanical Turk SDK.
amazonka-mediaconvert library and test: Amazon Elemental MediaConvert SDK.
amazonka-medialive library and test: Amazon Elemental MediaLive SDK.
amazonka-mediapackage library and test: Amazon Elemental MediaPackage SDK.
amazonka-mediastore library and test: Amazon Elemental MediaStore SDK.
amazonka-mediastore-dataplane library and test: Amazon Elemental MediaStore Data Plane SDK.
amazonka-migrationhub library and test: Amazon Migration Hub SDK.
amazonka-ml library and test: Amazon Machine Learning SDK.
amazonka-mobile library and test: Amazon Mobile SDK.
amazonka-mq library and test: Amazon MQ SDK.
amazonka-opsworks library and test: Amazon OpsWorks SDK.
amazonka-opsworks-cm library and test: Amazon OpsWorks for Chef Automate SDK.
amazonka-organizations library and test: Amazon Organizations SDK.
amazonka-pinpoint library and test: Amazon Pinpoint SDK.
amazonka-polly library and test: Amazon Polly SDK.
amazonka-pricing library and test: Amazon Price List Service SDK.
amazonka-rds library and test: Amazon Relational Database Service SDK.
amazonka-redshift library and test: Amazon Redshift SDK.
amazonka-rekognition library and test: Amazon Rekognition SDK.
amazonka-resourcegroups library and test: Amazon Resource Groups SDK.
amazonka-resourcegroupstagging library and test: Amazon Resource Groups Tagging API SDK.
amazonka-route53 library and test: Amazon Route 53 SDK.
amazonka-route53-autonaming library and test: Amazon Route 53 Auto Naming SDK.
amazonka-route53-domains library and test: Amazon Route 53 Domains SDK.
amazonka-s3 library and test: Amazon Simple Storage Service SDK.
amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
amazonka-sagemaker library and test: Amazon SageMaker Service SDK.
amazonka-sagemaker-runtime library and test: Amazon SageMaker Runtime SDK.
amazonka-sdb library and test: Amazon SimpleDB SDK.
amazonka-secretsmanager library and test: Amazon Secrets Manager SDK.
amazonka-serverlessrepo library and test: Amazon ServerlessApplicationRepository SDK.
amazonka-servicecatalog library and test: Amazon Service Catalog SDK.
amazonka-ses library and test: Amazon Simple Email Service SDK.
amazonka-shield library and test: Amazon Shield SDK.
amazonka-sms library and test: Amazon Server Migration Service SDK.
amazonka-snowball library and test: Amazon Import/Export Snowball SDK.
amazonka-sns library and test: Amazon Simple Notification Service SDK.
amazonka-sqs library and test: Amazon Simple Queue Service SDK.
amazonka-ssm library and test: Amazon Simple Systems Manager (SSM) SDK.
amazonka-stepfunctions library and test: Amazon Step Functions SDK.
amazonka-storagegateway library and test: Amazon Storage Gateway SDK.
amazonka-sts library and test: Amazon Security Token Service SDK.
amazonka-support library and test: Amazon Support SDK.
amazonka-swf library and test: Amazon Simple Workflow Service SDK.
amazonka-test library: Common functionality for Amazonka library test-suites.
amazonka-transcribe library and test: Amazon Transcribe Service SDK.
amazonka-translate library and test: Amazon Translate SDK.
amazonka-waf library and test: Amazon WAF SDK.
amazonka-waf-regional library and test: Amazon WAF Regional SDK.
amazonka-workdocs library and test: Amazon WorkDocs SDK.
amazonka-workmail library and test: Amazon WorkMail SDK.
amazonka-workspaces library and test: Amazon WorkSpaces SDK.
amazonka-xray library and test: Amazon X-Ray SDK.
AMI library: Low-level bindings for Asterisk Manager Interface (AMI).
amqp library, program and test: Client library for AMQP servers (currently only RabbitMQ)
amqp-conduit library and test: Conduit bindings for AMQP (see amqp package)
amqp-utils programs: AMQP toolset for the command line
anticiv library and program: This is an IRC bot for Mafia and Resistance.
apelsin program: Server and community browser for the game Tremulous
api-builder library and tests: Library for easily building REST API wrappers in Haskell
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
apns-http2 library and program: Apple Push Notification service HTTP/2 integration.
ApplePush library and program: Library for Apple Push Notification Service
arbor-datadog library and test: Datadog client for Haskell.
archiver library and program: Archive supplied URLs in WebCite & Internet Archive
arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
arxiv library: A client for the Arxiv API
assumpta library and tests: An SMTP client library
assumpta-core library and tests: Core functionality for an SMTP client
attomail program and test: Minimal mail delivery agent (MDA) for local mail with maildir support
avahi library and program: Minimal DBus bindings for Avahi daemon (http://avahi.org)
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-dynamodb-streams library: Haskell bindings for Amazon DynamoDB Streams
aws-easy library and program: Helper function and types for working with amazonka
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-ec2-knownhosts library and programs: Capture and manage AWS EC2 known_host pubkeys
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-lambda library: Haskell bindings for AWS Lambda
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-ses-easy library, test and benchmark: Wrapper over Amazonka's SES
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
azure-service-api library: Haskell bindings for the Microsoft Azure Service Management API
backblaze-b2-hs library, program and test: A client library to access Backblaze B2 cloud storage in Haskell.
Barracuda library and program: An ad-hoc P2P chat program
battlenet library: API client for Battle.Net
battlenet-yesod library: Yesod integration for the battlenet package
bdcs-api library, program and test: BDCS API Server
beeminder-api library: Bindings to the beeminder.com JSON API
bet library, program and test: Betfair API bindings. Bet on sports on betting exchanges.
binary-protocol-zmq library and program: Monad to ease implementing a binary network protocol over ZeroMQ
bitcoin-api library and test: Provides access to the RPC API of Bitcoin Core
bitcoin-api-extra library and test: Higher level constructs on top of the bitcoin-api package
bitcoin-block library and test: Utility functions for manipulating bitcoin blocks
bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
bitcoin-rpc library and test: Library to communicate with the Satoshi Bitcoin daemon
bitcoin-script library and test: Compilation, manipulation and decompilation of Bitcoin scripts
bitcoin-tx library and test: Utility functions for manipulating bitcoin transactions
bitcoin-types library and test: Provides consistent low-level types used commonly among Bitcoin implementations
bittorrent library and test: Bittorrent protocol implementation.
bronyradiogermany-common library: Common types and URIs for the BronyRadioGermany API bindings.
bronyradiogermany-streaming library: Streaming interface for the BronyRadioGermany API.
bsb-http-chunked library, tests and benchmark: Chunked HTTP transfer encoding for bytestring builders
BufferedSocket library: A socker wrapper that makes the IO of sockets much cleaner
burrito library and test: Parse and render URI templates.
bustle programs and tests: Draw sequence diagrams of D-Bus traffic
c10k library: C10k server library using prefork
calamity library: A library for writing discord bots in haskell
calamity-commands library: A library for declaring, parsing, and invoking text-input based commands
call-haskell-from-anything library and program: Call Haskell functions from other languages via serialization and dynamic libraries
capnp library, program and test: Cap'n Proto for Haskell
carte program: Carte: A commandline pastebin server.
cci library, programs and tests: Bindings for the CCI networking library
ccnx library: A Haskell implementation of the CCNx network protocol.
cgi library and programs: A library for writing CGI programs
check-email library: Confirm whether an email is valid and probably existant.
clarifai library: API Client for the Clarifai API.
cloudfront-signer library: CloudFront URL signer
colchis library: Rudimentary JSON-RPC 2.0 client over raw TCP.
Combinatorrent program: A concurrent bittorrent client
commsec-keyexchange library: Key agreement for commsec.
compact-socket library: Socket functions for compact normal form.
compendium-client library: Client for the Compendium schema server
concurrent-dns-cache library, program and test: Concurrent DNS cache
conduit-connection library and test: Conduit source and sink for Network.Connection.
conduit-network-stream library: A base layer for network protocols using Conduits
conjure library and program: A BitTorrent client
connection library: Simple and easy network connections API
connection-pool library: Connection pool built on top of resource-pool and streaming-commons.
consul-haskell library and test: A consul client for Haskell
courier library, programs and test: A message-passing library for simplifying network applications
cr program: Code review tool
credentials library and test: Secure Credentials Storage and Distribution
credentials-cli program: Secure Credentials Administration
crypto-token library: crypto tokens
cryptoconditions library and test: Interledger Crypto-Conditions
curl library: Haskell binding to libcurl
curl-aeson library: Communicate with HTTP service using JSON
curlhs library and test: bindings to libcurl, the multiprotocol file transfer library
d-bus library, programs and test: Permissively licensed D-Bus client library
daemons library, programs and test: Daemons in Haskell made fun and easy
damnpacket library and test: Parsing dAmn messages
danibot library and program: Basic Slack bot framework.
datadog library and test: Datadog client for Haskell. Supports both the HTTP API and StatsD.
DBus library: D-Bus bindings
dbus library, test and benchmark: A client library for the D-Bus IPC system.
dbus-client library: Monadic and object-oriented interfaces to DBus
dbus-core library: Low-level D-Bus protocol implementation
dbus-qq library and test: Quasi-quoter for DBus functions
dbus-th library: TemplateHaskell generator of DBus bindings
dgs library: Haskell front-end for DGS' bot interface
DigitalOcean library and test: A client library for the DigitalOcean API
direct-fastcgi library: Native implementation of the FastCGI protocol.
direct-http library: Native webserver that acts as a library.
discord-gateway library: An API wrapper for Discord in Haskell
discord-haskell library and program: Write bots for Discord in Haskell
discord-hs library: An API wrapper for Discord in Haskell
discord-rest library: An API wrapper for Discord in Haskell
discord-types library: Type information for discord-hs
distributed-process-ekg library: Collect node stats for EKG
distributed-process-p2p library and program: Peer-to-peer node discovery for Cloud Haskell
dmcc library and program: AVAYA DMCC API bindings and WebSockets server for AVAYA
dns library and tests: DNS library in Haskell
dnscache library and program: Caching DNS resolver library and mass DNS resolver utility
dnsrbl library: Asynchronous DNS RBL lookup
dnssd library: DNS service discovery bindings
docker library and test: An API client for docker written in Haskell
DOH library and test: Complete API bindings for DigitalOcean API V2
domain-auth library and test: Domain authentication library
download library and test: High-level file download based on URLs
download-curl library: High-level file download based on URLs
downloader library: A small, low-dependency library that provides turn-key file download over HTTP and HTTPS.
dresdner-verkehrsbetriebe library and program: Library and program for querying DVB (Dresdner Verkehrsbetriebe AG)
Dust library and test: Polymorphic protocol engine
Dust-tools library and programs: Network filtering exploration tools
Dust-tools-pcap programs: Network filtering exploration tools that rely on pcap
eager-sockets library: Socket operations with timeouts
eap library: Extensible Authentication Protocol (EAP)
easy-bitcoin library: types and functions for bitcoin applications
ec2-signature library and tests: The Amazon EC2 style signature calculator.
ekg library: Remote monitoring of processes
ekg-wai library: Remote monitoring of processes
email library: Sending eMail in Haskell made easy
email-header library and test: Parsing and rendering of email and MIME headers
emailparse library and test: An email parser that will parse everything
engine-io-wai library: An @engine-io@ @ServerAPI@ that is compatible with @Wai@
engine-io-yesod library
epass library: Baisc, Erlang-like message passing supporting sockets.
EtaMOO program: A new implementation of the LambdaMOO server
etcd library and test: Client for etcd, a highly-available key value store
Etherbunny library and program: A network analysis toolkit for Haskell
eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding
EventSocket library: Interfaces with FreeSwitch Event Socket.
eventsourced library, program and test: Server-Sent Events the UNIX way
faktory library, programs and tests: Faktory Worker for Haskell
fastcgi library: A Haskell library for writing FastCGI programs
fastirc library: Fast Internet Relay Chat (IRC) library
firebase-database library, test and benchmark: Google Firebase Database SDK
flatbuffers library, test and benchmark: Haskell implementation of the FlatBuffers protocol.
flowdock-api library, program and test: API integration with Flowdock.
fluent-logger library, test and benchmark: A structured logger for Fluentd (Haskell)
fluent-logger-conduit library: Conduit interface for fluent-logger
freddy library and test: RabbitMQ Messaging API supporting request-response
free-http library: An HTTP Client based on Free Monads.
ftp-conduit library: FTP client package with conduit interface based off http-conduit
ftphs library and program: FTP Client and Server Library
FTPLine program: A command-line FTP client.
full-sessions library: a monad for protocol-typed network programming
funbot program: IRC bot for fun, learning, creativity and collaboration.
funbot-client library: Report events to FunBot over a JSON/HTTP API.
funbot-ext-events library: Interact with FunBot's external events.
funbot-git-hook program: Git hook which sends events to FunBot.
futun program: Simple IP-over-UDP tunnel using TUNTAP
gemini-server library: A lightweight server for the Gemini protocol
generic-server library: Simple generic TCP/IP server
GeoIp library: Pure bindings for the MaxMind IP database.
gh-pocket-knife library, program and test: Script helpers for interacting with GitHub
ginsu program: Ginsu Gale Client
git-lfs library: git-lfs protocol
git-remote-ipfs library, program and test: Git remote helper to store git objects on IPFS
github library and test: Access to the GitHub API, v3.
github-data library: Access to the GitHub API, v3.
github-utils library: Useful functions that use the GitHub API
gitit library and programs: Wiki using happstack, git or darcs, and pandoc.
gitter library: Gitter.im API client
glirc library, program and test: Console IRC client
glue library, program and test: Make better services.
glue-common library and test: Make better services and clients.
glue-core library and test: Make better services and clients.
glue-ekg library and test: Make better services and clients.
glue-example program: Make better services and clients.
gnss-converters library, programs and test: GNSS Converters.
gnutls library: Bindings for GNU libgnutls
goggles library and test: Extensible interface to Web APIs
goggles-gcs library: `goggles` interface to Google Cloud Storage
gogol library: Comprehensive Google Services SDK.
gogol-abusiveexperiencereport library: Google Abusive Experience Report SDK.
gogol-acceleratedmobilepageurl library: Google Accelerated Mobile Pages (AMP) URL SDK.
gogol-accessapproval library: Google Access Approval SDK.
gogol-accesscontextmanager library: Google Access Context Manager SDK.
gogol-adexchange-buyer library: Google Ad Exchange Buyer SDK.
gogol-adexchange-seller library: Google Ad Exchange Seller SDK.
gogol-adexchangebuyer2 library: Google Ad Exchange Buyer API II SDK.
gogol-adexperiencereport library: Google Ad Experience Report SDK.
gogol-admin-datatransfer library: Google Admin Data Transfer SDK.
gogol-admin-directory library: Google Admin Directory SDK.
gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
gogol-admin-reports library: Google Admin Reports SDK.
gogol-adsense library: Google AdSense Management SDK.
gogol-adsense-host library: Google AdSense Host SDK.
gogol-affiliates library: Google Affiliate Network SDK.
gogol-alertcenter library: Google G Suite Alert Center SDK.
gogol-analytics library: Google Analytics SDK.
gogol-analyticsreporting library: Google Analytics Reporting SDK.
gogol-android-enterprise library: Google Play EMM SDK.
gogol-android-publisher library: Google Play Developer SDK.
gogol-androiddeviceprovisioning library: Google Android Device Provisioning Partner SDK.
gogol-androidmanagement library: Google Android Management SDK.
gogol-appengine library: Google App Engine Admin SDK.
gogol-apps-activity library: Google Drive Activity SDK.
gogol-apps-calendar library: Google Calendar SDK.
gogol-apps-licensing library: Google Enterprise License Manager SDK.
gogol-apps-reseller library: Google Enterprise Apps Reseller SDK.
gogol-apps-tasks library: Google Tasks SDK.
gogol-appstate library: Google App State SDK.
gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
gogol-bigquery library: Google BigQuery SDK.
gogol-bigquerydatatransfer library: Google BigQuery Data Transfer SDK.
gogol-bigtableadmin library: Google Cloud Bigtable Admin SDK.
gogol-billing library: Google Cloud Billing SDK.
gogol-binaryauthorization library: Google Binary Authorization SDK.
gogol-blogger library: Google Blogger SDK.
gogol-books library: Google Books SDK.
gogol-chat library: Google Hangouts Chat SDK.
gogol-civicinfo library: Google Civic Information SDK.
gogol-classroom library: Google Classroom SDK.
gogol-cloudasset library: Google Cloud Asset SDK.
gogol-clouderrorreporting library: Google Stackdriver Error Reporting SDK.
gogol-cloudfunctions library: Google Cloud Functions SDK.
gogol-cloudidentity library: Google Cloud Identity SDK.
gogol-cloudiot library: Google Cloud IoT SDK.
gogol-cloudkms library: Google Cloud Key Management Service (KMS) SDK.
gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
gogol-cloudprivatecatalog library: Google Cloud Private Catalog SDK.
gogol-cloudprivatecatalogproducer library: Google Cloud Private Catalog Producer SDK.
gogol-cloudprofiler library: Google Stackdriver Profiler SDK.
gogol-cloudscheduler library: Google Cloud Scheduler SDK.
gogol-cloudsearch library: Google Cloud Search SDK.
gogol-cloudshell library: Google Cloud Shell SDK.
gogol-cloudtasks library: Google Cloud Tasks SDK.
gogol-cloudtrace library: Google Stackdriver Trace SDK.
gogol-commentanalyzer library: Google Perspective Comment Analyzer SDK.
gogol-composer library: Google Cloud Composer SDK.
gogol-compute library: Google Compute Engine SDK.
gogol-consumersurveys library: Google Consumer Surveys SDK.
gogol-container library: Google Kubernetes Engine SDK.
gogol-containeranalysis library: Google Container Analysis SDK.
gogol-containerbuilder library: Google Cloud Build SDK.
gogol-core library and test: Core data types and functionality for Gogol libraries.
gogol-customsearch library: Google CustomSearch SDK.
gogol-dataflow library: Google Dataflow SDK.
gogol-datafusion library: Google Cloud Data Fusion SDK.
gogol-dataproc library: Google Cloud Dataproc SDK.
gogol-datastore library: Google Cloud Datastore SDK.
gogol-debugger library: Google Stackdriver Debugger SDK.
gogol-deploymentmanager library: Google Cloud Deployment Manager SDK.
gogol-dfareporting library: Google DCM/DFA Reporting And Trafficking SDK.
gogol-dialogflow library: Google Dialogflow SDK.
gogol-digitalassetlinks library: Google Digital Asset Links SDK.
gogol-discovery library: Google API Discovery Service SDK.
gogol-dlp library: Google Cloud Data Loss Prevention (DLP) SDK.
gogol-dns library: Google Cloud DNS SDK.
gogol-docs library: Google Docs SDK.
gogol-doubleclick-bids library: Google DoubleClick Bid Manager SDK.
gogol-doubleclick-search library: Google DoubleClick Search SDK.
gogol-drive library: Google Drive SDK.
gogol-driveactivity library: Google Drive Activity SDK.
gogol-factchecktools library: Google Fact Check Tools SDK.
gogol-file library: Google Cloud Filestore SDK.
gogol-firebase-dynamiclinks library: Google Firebase Dynamic Links SDK.
gogol-firebase-rules library: Google Firebase Rules SDK.
gogol-firebasehosting library: Google Firebase Hosting SDK.
gogol-firebaseremoteconfig library: Google Firebase Remote Config SDK.
gogol-firestore library: Google Cloud Firestore SDK.
gogol-fitness library: Google Fitness SDK.
gogol-fonts library: Google Fonts Developer SDK.
gogol-freebasesearch library: Google Freebase Search SDK.
gogol-fusiontables library: Google Fusion Tables SDK.
gogol-games library: Google Play Game Services SDK.
gogol-games-configuration library: Google Play Game Services Publishing SDK.
gogol-games-management library: Google Play Game Services Management SDK.
gogol-genomics library: Google Genomics SDK.
gogol-gmail library: Google Gmail SDK.
gogol-groups-migration library: Google Groups Migration SDK.
gogol-groups-settings library: Google Groups Settings SDK.
gogol-healthcare library: Google Cloud Healthcare SDK.
gogol-iam library: Google Identity and Access Management (IAM) SDK.
gogol-iamcredentials library: Google IAM Service Account Credentials SDK.
gogol-iap library: Google Cloud Identity-Aware Proxy SDK.
gogol-identity-toolkit library: Google Identity Toolkit SDK.
gogol-indexing library: Google Indexing SDK.
gogol-jobs library: Google Cloud Talent Solution SDK.
gogol-kgsearch library: Google Knowledge Graph Search SDK.
gogol-language library: Google Cloud Natural Language SDK.
gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
gogol-libraryagent library: Google Library Agent SDK.
gogol-logging library: Google Stackdriver Logging SDK.
gogol-manufacturers library: Google Manufacturer Center SDK.
gogol-maps-coordinate library: Google Maps Coordinate SDK.
gogol-maps-engine library: Google Maps Engine SDK.
gogol-mirror library: Google Mirror SDK.
gogol-ml library: Google Cloud Machine Learning Engine SDK.
gogol-monitoring library: Google Stackdriver Monitoring SDK.
gogol-oauth2 library: Google OAuth2 SDK.
gogol-oslogin library: Google Cloud OS Login SDK.
gogol-pagespeed library: Google PageSpeed Insights SDK.
gogol-partners library: Google Partners SDK.
gogol-people library: Google People SDK.
gogol-photoslibrary library: Google Photos Library SDK.
gogol-play-moviespartner library: Google Play Movies Partner SDK.
gogol-playcustomapp library: Google Play Custom App Publishing SDK.
gogol-plus library: Google + SDK.
gogol-plus-domains library: Google + Domains SDK.
gogol-poly library: Google Poly SDK.
gogol-prediction library: Google Prediction SDK.
gogol-proximitybeacon library: Google Proximity Beacon SDK.
gogol-pubsub library: Google Cloud Pub/Sub SDK.
gogol-qpxexpress library: Google QPX Express SDK.
gogol-redis library: Google Cloud Memorystore for Redis SDK.
gogol-remotebuildexecution library: Google Remote Build Execution SDK.
gogol-replicapool library: Google Replica Pool SDK.
gogol-replicapool-updater library: Google Compute Engine Instance Group Updater SDK.
gogol-resourcemanager library: Google Cloud Resource Manager SDK.
gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
gogol-run library: Google Cloud Run SDK.
gogol-runtimeconfig library: Google Cloud Runtime Configuration SDK.
gogol-safebrowsing library: Google Safe Browsing SDK.
gogol-script library: Google Apps Script SDK.
gogol-searchconsole library: Google Search Console URL Testing Tools SDK.
gogol-securitycenter library: Google Cloud Security Command Center SDK.
gogol-servicebroker library: Google Service Broker SDK.
gogol-serviceconsumermanagement library: Google Service Consumer Management SDK.
gogol-servicecontrol library: Google Service Control SDK.
gogol-servicemanagement library: Google Service Management SDK.
gogol-servicenetworking library: Google Service Networking SDK.
gogol-serviceusage library: Google Service Usage SDK.
gogol-serviceuser library: Google Service User SDK.
gogol-sheets library: Google Sheets SDK.
gogol-shopping-content library: Google Content API for Shopping SDK.
gogol-siteverification library: Google Site Verification SDK.
gogol-slides library: Google Slides SDK.
gogol-sourcerepo library: Google Cloud Source Repositories SDK.
gogol-spanner library: Google Cloud Spanner SDK.
gogol-spectrum library: Google Spectrum Database SDK.
gogol-speech library: Google Cloud Speech-to-Text SDK.
gogol-sqladmin library: Google Cloud SQL Admin SDK.
gogol-storage library: Google Cloud Storage JSON SDK.
gogol-storage-transfer library: Google Storage Transfer SDK.
gogol-streetviewpublish library: Google Street View Publish SDK.
gogol-surveys library: Google Surveys SDK.
gogol-tagmanager library: Google Tag Manager SDK.
gogol-taskqueue library: Google TaskQueue SDK.
gogol-testing library: Google Cloud Testing SDK.
gogol-texttospeech library: Google Cloud Text-to-Speech SDK.
gogol-toolresults library: Google Cloud Tool Results SDK.
gogol-tpu library: Google Cloud TPU SDK.
gogol-tracing library: Google Tracing SDK.
gogol-translate library: Google Cloud Translation SDK.
gogol-urlshortener library: Google URL Shortener SDK.
gogol-useraccounts library: Google Cloud User Accounts SDK.
gogol-vault library: Google G Suite Vault SDK.
gogol-videointelligence library: Google Cloud Video Intelligence SDK.
gogol-vision library: Google Cloud Vision SDK.
gogol-webmaster-tools library: Google Search Console SDK.
gogol-websecurityscanner library: Google Web Security Scanner SDK.
gogol-youtube library: Google YouTube Data SDK.
gogol-youtube-analytics library: Google YouTube Analytics SDK.
gogol-youtube-reporting library: Google YouTube Reporting SDK.
google-oauth2-easy library, test and benchmark: Opininated use of Google Authentication for ease
GoogleDirections library: Haskell Interface to Google Directions API
gopher-proxy program: proxy gopher over http
gopherbot program: Spidering robot to download files from Gopherspace
graphula library and test: A declarative library for describing dependencies between data
graphula-core library and test: A declarative library for describing dependencies between data
greskell-websocket library and tests: Haskell client for Gremlin Server using WebSocket serializer
GrowlNotify library and program: Notification utility for Growl.
grpc-haskell library, programs, test and benchmark: Haskell implementation of gRPC layered on shared C library.
grpc-haskell-core library and test: Haskell implementation of gRPC layered on shared C library.
gsasl library: Bindings for GNU libgsasl
gssapi library: libgssapi and libkrb5 bindings for haskell
gssapi-wai library: WAI Middleware for SPNEGO authentiaction
gtkrsync programs: Gnome rsync progress display
Hach library and programs: Simple chat
HackMail library and program: A Procmail Replacement as Haskell EDSL
hailgun library: Mailgun REST api interface for Haskell.
hailgun-send program: A program to send emails throught the Mailgun api.
hamtsolo program: Intel AMT serial-over-lan (SOL) client
handa-gdata library and program: Library and command-line utility for accessing Google services and APIs.
handwriting library, program and test: API Client for the handwriting.io API.
hascat program: Hascat Web Server
hascat-lib library: Hascat Package
hascat-setup library and program: Hascat Installation helper
hascat-system library: Hascat System Package
haskakafka library, programs and test: Kafka bindings for Haskell
haskbot-core library and test: Easily-extensible chatbot for Slack messaging service
haskell-aliyun library: haskell client of aliyun service.
haskell-ftp library and program: A Haskell ftp server with configurable backend.
haskell-modbus library and test: A cereal-based parser for the Modbus protocol
haskell-openflow library and test: OpenFlow protocol in Haskell
haskell-tor library, program and test: A Haskell Tor Node
haskell-xmpp library and programs: Haskell XMPP (eXtensible Message Passing Protocol, a.k.a. Jabber) library
HaskellNet library: Client support for POP3, SMTP, and IMAP
HaskellNet-SSL library: Helpers to connect to SSL/TLS mail servers with HaskellNet
HaskellTorrent program: A concurrent bittorrent client
haskheap library: Haskell bindings to refheap.
haskoin library and test: Implementation of the Bitcoin protocol.
haskoin-bitcoind library: An adapter for haskoin to network-bitcoin
haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
haskoin-store-data library and test: Data for Haskoin Store
haskoin-util library and test: Utility functions for the Network.Haskoin project
haskoin-wallet library, programs and test: Implementation of a Bitcoin SPV Wallet with BIP32 and multisig support.
hatexmpp3 program: XMPP client with 9P and (optionally) GTK interfaces
hats library, program, test and benchmark: Haskell client for the NATS messaging system
haxl-facebook library and test: An example Haxl data source for accessing the Facebook Graph API
haxr library: XML-RPC client and server library.
hbeanstalk library: Client for the beanstalkd workqueue service.
hcoap library, programs and test: CoAP implementation for Haskell.
helics library and program: New Relic® agent SDK wrapper for Haskell.
helics-wai library and program: New Relic® agent SDK wrapper for wai.
helix library and test: Web development micro framework for haskell with typesafe URLs
hellage programs: Distributed hackage mirror
hellnet library and programs: Simple, distributed, anonymous data sharing network.
henet library: Bindings and high level interface for to ENet v1.3.9
Hermes library: Message-based middleware layer
hexpress library: An express-like http framework
heyefi program and test: A server for Eye-Fi SD cards.
HGamer3D-Enet-Binding library: Enet Binding for HGamer3D
hgearman library: A Gearman client for Haskell.
hGelf library: Haskell GELF library
hgithub library and program: Haskell bindings to the GitHub API
hgopher library: Gopher server
hichi programs: haskell robot for IChat protocol
hinquire library and test: Generate armet style query strings.
hircules program: IRC client
hMollom library: Library to interact with the @Mollom anti-spam service
HNM library and program: Happy Network Manager
hoauth library: A Haskell implementation of OAuth 1.0a protocol.
hoauth2 library and program: Haskell OAuth2 authentication client
hog program: Simple IRC logger bot.
hoggl library and program: Bindings to the Toggl.com REST API
Holumbus-Distribution library and programs: intra- and inter-program communication
hookup library: Abstraction over creating network connections with SOCKS5 and TLS
HostAndPort library, tests and benchmark: Parser for host and port pairs like localhost:22
hostname library: A very simple package providing a cross-platform means of determining the hostname
hostname-validate library: Validate hostnames e.g. localhost or foo.co.uk.
hosts-server program: An dns server which is extremely easy to config.
hpodder program: Podcast Aggregator (downloader)
hreq-client library, program and tests: A Type dependent Highlevel HTTP client library.
hreq-conduit library and tests: Conduit streaming support for Hreq.
hreq-core library and test: Core functionality for Hreq Http client library
hs-json-rpc library: JSON-RPC client library
hs-twitterarchiver program: Commandline Twitter feed archiver
hS3 library and program: Interface to Amazon's Simple Storage Service (S3)
hsaml2 library and test: OASIS Security Assertion Markup Language (SAML) V2.0
hscd library and program: Command line client and library for SoundCloud.com
hsdns library and programs: Asynchronous DNS Resolver
hsdns-cache library: Caching asynchronous DNS resolver.
hsendxmpp program: sendxmpp clone, sending XMPP messages via CLI
hserv program: Simple http server in haskell.
hsgnutls library: Library wrapping the GnuTLS API.
hsgnutls-yj library: Library wrapping the GnuTLS API.
hSimpleDB library: Interface to Amazon's SimpleDB service.
hsmtpclient library: Simple SMTP Client
hsns program: a miniature network sniffer
hsnsq library: Haskell NSQ client.
hsp-cgi library: Facilitates running Haskell Server Pages web pages as CGI programs.
hspr-sh library: Session handler for HSP
hspread library: A client library for the spread toolkit
hsrelp library: RELP (Reliable Event Logging Protocol) server implementation
hssh library, program and test: SSH protocol implementation
hstorchat library, program and test: Distributed instant messaging over Tor
hstox library, programs and test: A Tox protocol implementation in Haskell
hszephyr library: Simple libzephyr bindings
HTTP library and test: A library for client-side HTTP
http-attoparsec library: Attoparsec parsers for http-types.
http-client library and tests: An HTTP client engine
http-client-auth library: HTTP authorization (both basic and digest) done right
http-client-conduit library: Frontend support for using http-client with conduit (deprecated)
http-client-extra library: wrapper for http-client exposing cookies
http-client-multipart library: Generate multipart uploads for http-client. (deprecated)
http-client-openssl library and test: http-client backend using the OpenSSL library.
http-client-overrides library, program and test: HTTP client overrides
http-client-request-modifiers library: Convenient monadic HTTP request modifiers
http-client-restricted library: restricting the servers that http-client will use
http-client-session library: A simple abstraction over the "http-client" connection manager
http-client-tls library, test and benchmark: http-client backend using the connection package and tls library
http-client-websockets library and test: Glue code for http-client and websockets
http-date library and tests: HTTP Date parser/formatter
http-directory library and test: http directory listing library
http-dispatch library and test: High level HTTP client for Haskell
http-kit library and test: A low-level HTTP library
http-listen library: Listen to HTTP requests and handle them in arbitrary ways.
http-monad library and program: Monad abstraction for HTTP allowing lazy transfer and non-I/O simulation
http-pony library: A type unsafe http library
http-pony-serve-wai library: Serve a WAI application with http-pony
http-pony-transformer-case-insensitive library: Tag http headers as case insensitive
http-pony-transformer-http library: Transform raw TCP stream to a basic HTTP type
http-pony-transformer-startline library: transform HTTP startlines to tuples
http-querystring library and tests: The HTTP query builder.
http-server library: A library for writing Haskell web servers.
http-shed library and program: A simple websever with an interact style API
HTTP-Simple library: DEPRECATED Enable simple wrappers to Network.HTTP
http-types library and tests: Generic HTTP types for Haskell (for both client and server code).
http-wget library: ...
http2 library, programs, tests and benchmarks: HTTP/2 library
http2-client-grpc library and test: Implement gRPC-over-HTTP2 clients.
http2-grpc-proto-lens library: Encoders based on `proto-lens` for gRPC over HTTP2.
http2-grpc-proto3-wire library: Encoders based on `proto3-wire` for gRPC over HTTP2.
http2-grpc-types library: Types for gRPC over HTTP2 common for client and servers.
httpd-shed library and program: A simple web-server with an interact style API
hulk library and programs: IRC server written in Haskell.
hums program: Haskell UPnP Media Server
hurl library and program: Haskell URL resolver
hurriyet library and test: Haskell bindings for Hurriyet API
hw-ip library, program and tests: Library for manipulating IP addresses and CIDR blocks
hwall-auth-iitk program: Initial version of firewall Authentication for IITK network.
hwormhole library, program and test: magic-wormhole client
HXMPP library and program: A (prototyped) easy to use XMPP library
hxmppc program: Haskell XMPP (Jabber Client) Command Line Interface (CLI)
hyena library: Simple web application server
iap-verifier library: A simple wrapper of In-App-Purchase receipt validate APIs.
ib-api library and program: An API for the Interactive Brokers Trading Workstation written in pure Haskell
idna2008 library: Converts Unicode hostnames into ASCII
ihttp library and program: Incremental HTTP iteratee
imagepaste program: Command-line image paste utility
imap library and test: An efficient IMAP client library, with SSL and streaming
imapget program: Downloads email from imap SSL servers.
io-streams library and test: Simple, composable, and easy-to-use stream I/O
io-streams-haproxy library and test: HAProxy protocol 1.5 support for io-streams
ip-quoter library and test: Quasiquoter for IP addresses
ip6addr program: Commandline tool to deal with IPv6 address text representations
ipfs library and test: Access IPFS locally and remotely
ipfs-api library: Auto-generated IPFS HTTP API
iproute library and tests: IP Routing Table
IPv6Addr library and test: Library to deal with IPv6 address text representations.
IPv6DB library, program and test: A RESTful microService for IPv6-related data
Irc library and test: DSL for IRC bots
irc library and test: A small library for parsing IRC messages.
irc-bytestring library: serialization and parsing of IRC messages
irc-client library: An IRC client library.
irc-conduit library: Streaming IRC message library using conduits.
irc-core library and test: IRC core library for glirc
irc-ctcp library: A CTCP encoding and decoding library for IRC clients.
irc-dcc library and test: A DCC message parsing and helper library for IRC clients
irc-fun-bot library: Library for writing fun IRC bots.
irc-fun-client library: Another library for writing IRC clients.
irc-fun-color library and test: Add color and style decorations to IRC messages.
irc-fun-messages library: Types and functions for working with the IRC protocol.
irc-fun-types library: Common types for IRC related packages
ircbot library and program: A library for writing IRC bots
iri library and test: RFC-based resource identifier library
iron-mq library: Iron.IO message queueing client library
ismtp library: Advanced ESMTP library
iterio-server library: Library for building servers with IterIO
iwlib library: Bindings for the iw C library
iyql program: CLI (command line interface) to YQL
javascript-bridge library, programs and test: Remote Monad for JavaScript on the browser
jmacro-rpc library: JSON-RPC clients and servers using JMacro, ...
jmacro-rpc-happstack library: Happstack backend for jmacro-rpc
jmacro-rpc-snap library: Snap backend for jmacro-rpc
jobqueue library and test: A job queue library
json-api library and test: Utilities for generating JSON-API payloads
json-api-lib library and test: Utilities for generating JSON-API payloads
json-rpc library, programs and test: Fully-featured JSON-RPC 2.0 library
json-rpc-client library, programs and test: JSON-RPC 2.0 on the client side.
json-rpc-generic library and test: Generic encoder and decode for JSON-RPC
json-rpc-server library, program and test: JSON-RPC 2.0 on the server side.
kademlia library and test: An implementation of the Kademlia DHT Protocol
kafka-client library and tests: Low-level Haskell client library for Apache Kafka 0.7.
kafka-client-sync library and test: Synchronous Kafka Client
kafka-device-vrpn library and program: VRPN events via a Kafka message broker
keep-alive library and test: TCP keep alive implementation
koji library: Koji buildsystem XML-RPC API bindings
koofr-client library: Client to Koofr API
kraken library: Kraken.io API client
krpc library, test and benchmark: KRPC protocol implementation
lambda-bridge library and program: A bridge from Haskell (on a CPU) to VHDL on a FPGA.
language-avro library and test: Language definition and parser for AVRO files.
language-protobuf library: Language definition and parser for Protocol Buffers.
latest-npm-version library, program and test: Find the latest version of a package on npm
LDAP library, program and test: Haskell binding for C LDAP API
ldap-client library and test: Pure Haskell LDAP Client Library
ldapply program: LDIF idempotent apply tool
LDAPv3 library and test: Lightweight Directory Access Protocol (LDAP) version 3
legion library: Distributed, stateful, homogeneous microservice framework.
libjenkins library and tests: Jenkins API interface
libmpd library and test: An MPD client library.
librato library: Bindings to the Librato API
libravatar library: Use Libravatar, the decentralized avatar delivery service
libretls library and test: libtls bindings
libssh2 library and program: FFI bindings to libssh2 SSH2 client library (http://libssh2.org/)
libssh2-conduit library and program: Conduit wrappers for libssh2 FFI bindings (see libssh2 package).
libtelnet library and program: Bindings to libtelnet
line library and test: Haskell SDK for the LINE API
line-bot-sdk library, program and test: Haskell SDK for LINE Messaging API
linear-socket library and test: Typed sockets
linklater library and test: A Haskell library for the Slack API
linode library and test: Bindings to the Linode API
linode-v4 library and test: Haskell wrapper for the Linode v4 API
linx-gateway library, program and test: Implementation of the Enea LINX gateway protocol.
local-address library: Functions to get local interface address
logstash library: Logstash client library for Haskell
loshadka program: Minecraft 1.7 server proxy that answers to queries when the server is offline
loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
ltiv1p1 library: Partial implementation of a service provider for LTI 1.1.
Lucu library and program: HTTP Daemonic Library
machines-amazonka library: Machine transducers for Amazonka calls.
majordomo library and programs: Majordomo protocol for ZeroMQ
manatee-browser library and program: Browser extension for Manatee.
manatee-curl library and program: Download Manager extension for Manatee.
manatee-terminal library and program: Terminal Emulator extension for Manatee.
mandrill library and test: Library for interfacing with the Mandrill JSON API
matsuri program: ncurses XMPP client
mcpi library and programs: Connect to MineCraft running on a Raspberry PI.
mDNSResponder-client library and test: Library for talking to the mDNSResponder daemon.
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
memcache-conduit library and programs: Conduit library for memcache procotol
memcache-haskell library, programs and test: Memcache procotol library
memcached library: haskell bindings for memcached
messagepack-rpc library: Message Pack RPC over TCP
metricsd-client library: Client for the metrics aggregator Metricsd
metro library: A simple tcp and udp socket server framework
Mhailist programs: Haskell mailing list manager
micro-gateway library and program: A Micro service gateway.
mighttpd programs: Simple Web Server in Haskell
mighttpd2 library, programs and test: High performance web server on WAI/warp
milena library and test: A Kafka client for Haskell.
minio-hs library, programs and tests: A MinIO Haskell Library for Amazon S3 compatible cloud storage.
minions program: A fast parallel ssh tool
mock-httpd program: A HTTP server for testing HTTP clients
moesocks program: A functional firewall killer
monad-connect library: Transformer for TCP connection with TLS and SOCKS support
montage library: Riak Resolution Proxy
montage-client library: Riak Resolution Proxy Client
mosquitto-hs library: Mosquitto client library bindings
mptcp-pm program: A work in progress Multipath TCP path manager
mqtt library, tests and benchmarks: An MQTT protocol implementation.
mqtt-hs library: A MQTT client library.
msgpack-rpc library and test: A MessagePack-RPC Implementation
mtgoxapi library and test: Library to communicate with Mt.Gox
mu-avro library and program: Avro serialization support for Mu microservices
mu-graphql library and program: GraphQL support for Mu
mu-grpc-client library: gRPC clients from Mu definitions
mu-grpc-common library: gRPC for Mu, common modules for client and server
mu-grpc-server library and program: gRPC servers for Mu definitions
mu-kafka library: Utilities for interoperation between Mu and Kafka
mu-lens library: Lenses for @mu-schema@ terms
mu-optics library: Optics for @mu-schema@ terms
mu-persistent library: Utilities for interoperation between Mu and Persistent
mu-prometheus library: Metrics support for Mu using Prometheus
mu-protobuf library and program: Protocol Buffers serialization and gRPC schema import for Mu microservices
mu-rpc library: Protocol-independent declaration of services and servers.
mu-schema library: Format-independent schemas for serialization
mu-servant-server library and program: Servant servers for Mu definitions
mu-tracing library: Tracing support for Mu
multiaddr library and test: A network address format
multipart library: Parsers for the HTTP multipart format
MusicBrainz library: interface to MusicBrainz XML2 and JSON web services
mvclient library: Client library for metaverse systems like Second Life
mybitcoin-sci library: Binding to mybitcoin.com's Shopping Cart Interface.
n-m library and program: Utility to call iwconfig.
n2o library and test: Abstract Protocol Loop
n2o-nitro library: Nitro Elements, Events and Actions
n2o-protocols library: N2O Protocols Starter Pack
n2o-web library: N2O adapter for WebSockets
nakadi-client library and test: Client library for the Nakadi Event Broker
namecoin-update library and program: Tool to keep namecoin names updated and well
nanomsg-haskell library, tests and benchmarks: Bindings to the nanomsg library
nationstates library: NationStates API client
nats-client library, program, test and benchmark: Another Haskell client for NATS (https://nats.io)
nats-queue library and test: Haskell API for NATS messaging system
neko-obfs program: a TCP tunnel with packet length obfuscation
net-concurrent library: Concurrent over the network execution library
net-mqtt library, programs and test: An MQTT Protocol Implementation.
net-mqtt-lens library and test: Optics for net-mqtt
net-mqtt-rpc library and program: Make RPC calls via an MQTT broker.
netclock library: Netclock protocol
netcode-io library and programs: Bindings to the low-level netcode.io library.
netcore library, test and benchmark: The NetCore compiler and runtime system for OpenFlow networks.
netlines library and program: Enumerator tools for text-based network protocols
netrc library and test: Parser for .netrc files
NetSNMP library and test: Bindings for net-snmp's C API for clients
netspec library: Simplify static Networking tasks
netstring-enumerator library: Enumerator-based netstring parsing
nettle-frp library: FRP for controlling networks of OpenFlow switches.
nettle-netkit library: DSL for describing OpenFlow networks, and a compiler generating NetKit labs.
nettle-openflow library: OpenFlow protocol messages, binary formats, and servers.
network library and tests: Low-level networking interface
network-address library, program and test: IP data structures and textual representation
network-anonymous-i2p library and test: Haskell API for I2P anonymous networking
network-anonymous-tor library, program and test: Haskell API for Tor anonymous networking
network-attoparsec library and test: Utility functions for running a parser against a socket
network-bitcoin library and test: An interface to bitcoind.
network-bsd library: POSIX network database (<netdb.h>) API
network-builder library, program and test: Linux NetworkNameSpace Builder
network-byte-order library and test: Network byte order utilities
network-bytestring library: Fast, memory-efficient, low-level networking
network-conduit library: Stream socket data using conduits. (deprecated)
network-conduit-tls library and test: Create TLS-aware network code with conduits
network-connection library: A wrapper around a generic stream-like connection
network-data library: Library for network data structures and their serialization.
network-dbus library: D-Bus
network-dns library and program: Domain Name System data structures
network-fancy library: Networking support with a cleaner API
network-house library: data and parsers for Ethernet, TCP, UDP, IPv4, IPv6, ICMP, DHCP, TFTP
network-info library: Access the local computer's basic network configuration
network-interfacerequest library: Haskell bindings for the ifreq structure
network-ip library and test: Internet Protocol data structures
network-messagepack-rpc-websocket library and test: WebSocket backend for MessagePack RPC
network-minihttp library: A ByteString based library for writing HTTP(S) servers and clients.
network-msg library: Recvmsg and sendmsg bindings.
network-multicast library: Simple multicast library
network-netpacket library: Haskell bindings for low-level packet sockets (AF_PACKET)
Network-NineP library: High-level abstraction over 9P protocol
network-packet-linux library and tests: Types for working with Linux packet sockets
network-protocol-xmpp library: Client library for the XMPP protocol.
network-run library: Simple network runner library
network-server library and program: A light abstraction over sockets & co. for servers
network-service library and program: Provide a service at the data type level.
network-simple library: Simple network sockets usage patterns.
network-simple-sockaddr library: network-simple for resolved addresses
network-simple-tls library: Simple interface to TLS secured network sockets.
network-simple-ws library: Simple interface to WebSockets.
network-simple-wss library: Simple interface to TLS secured WebSockets.
network-socket-options library: Type-safe, portable alternative to getSocketOption/setSocketOption
network-transport library: Network abstraction layer
network-transport-amqp library and tests: AMQP-based transport layer for distributed-process (aka Cloud Haskell)
network-transport-composed library: Compose network transports
network-transport-inmemory library and tests: In-memory instantiation of Network.Transport
network-transport-tcp library and tests: TCP instantiation of Network.Transport
network-transport-tests library: Unit tests for Network.Transport implementations
network-transport-zeromq library, programs, tests and benchmarks: ZeroMQ backend for network-transport
network-types-icmp library and test: Types for representing ICMP and ICMPv6 messages.
network-uri library and tests: URI manipulation
network-uri-flag library: Pseudo-package encapsulating flag(network-uri) Cabal boilerplate
network-uri-json library and test: FromJSON and ToJSON Instances for Network.URI
network-uri-lenses library: Lenses for network-uri
network-uri-static library and test: A small utility to declare type-safe static URIs
network-voicetext library: VoiceText Web API wrapper
network-websocket library and program: WebSocket library
networked-game library: Networked-game support library
ngx-export library: Helper module for Nginx haskell module
ngx-export-tools library: Extra tools for Nginx haskell module
ngx-export-tools-extra library: More extra tools for Nginx haskell module
nist-beacon library: Haskell interface to the nist random beacon.
nntp library: Library to connect to an NNTP Server
ntp-control library and test: Client library for NTP control messaging
ntrip-client library and program: NTRIP client.
nylas library: Client for the Nylas API
oauth2-jwt-bearer library and test: OAuth2 jwt-bearer client flow as per rfc7523
oauthenticated library and test: Simple OAuth for http-client
octohat library, program and test: A tested, minimal wrapper around GitHub's API.
on-demand-ssh-tunnel library and program: Program that sends traffic through SSH tunnels on-demand
ONC-RPC library and program: ONC RPC (aka Sun RPC) and XDR library
openflow library: OpenFlow
openid library and program: An implementation of the OpenID-2.0 spec.
openid-connect library, program and test: An OpenID Connect library that does all the heavy lifting for you
opensource library and test: Haskell API Wrapper for the Open Source License API
openssl-streams library and test: OpenSSL network support for io-streams.
orchid library: Haskell Wiki Library
orchid-demo program: Haskell Wiki Demo
ory-hydra-client library and test: Auto-generated ory-hydra API Client
osm-download library: Download Open Street Map tiles
pagerduty library: Client library for PagerDuty Integration and REST APIs.
pan-os-syslog library, test and benchmark: Parse syslog traffic from PAN-OS
patterns library: Common patterns in message-oriented applications
paypal-api library: PayPal API, currently supporting "ButtonManager"
paypal-rest-client library: A client to connect to PayPal's REST API (v1)
pb program: pastebin command line application
pcap library: A system-independent interface for user-level packet capture
pcap-conduit library: Conduit <-> libpcap
pcap-enumerator library: Convert a pcap into an enumerator.
percent-encoder library, test and benchmark: Percent encode/decode ByteStrings
peyotls library and tests: Pretty Easy YOshikuni-made TLS library
peyotls-codec library: Codec parts of Pretty Easy YOshikuni-made TLS library
pgdl program: browse directory listing webpages and download files from them.
pia-forward program: Set up port forwarding with the Private Internet Access VPN service.
ping library and program: icmp echo requests
pinpon library, programs and tests: A gateway for various cloud notification services
pipes-kafka library: Kafka in the Pipes ecosystem
pipes-network library: Use network sockets together with the pipes library.
pipes-network-tls library: TLS-secured network connections support for pipes.
pipes-network-ws library: WebSockets support for pipes.
pipes-p2p library: P2P network nodes with pipes
pipes-p2p-examples program: Examples using pipes-p2p
pipes-s3 library and test: A simple interface for streaming data to and from Amazon S3
pipes-zeromq4 library and programs: Pipes integration for ZeroMQ messaging
plaid library, program and test: Plaid.com api integration library
pocket-dns library, program and test: Multi-backend (zookeeper and sqlite) DNS Server using persistent-library
polysemy-http library and tests: Polysemy effect for http-client
pontarius-xmpp library, tests and benchmark: An XMPP client library
pontarius-xmpp-extras library: XEPs implementation on top of pontarius-xmpp
pop3-client library: POP3 Client Library
PortFusion program: high-performance distributed reverse / forward proxy & tunneling for TCP
postie library and programs: SMTP server library to receive emails from within Haskell programs.
postmark-streams library: Send email via Postmark using io-streams.
postmaster program: Postmaster ESMTP Server
proc-net library: Parse /proc/net/{tcp,tcp6,udp,udp6}
prometheus-client library, tests and benchmark: Haskell client library for http://prometheus.io.
prometheus-metrics-ghc library and test: Metrics exposing GHC runtime information for use with prometheus-client.
protocol-radius library: parser and printer for radius protocol packet
publicsuffixlist library and test: Is a given string a domain suffix?
publicsuffixlistcreate library and test: Create the publicsuffixlist package
push-notify library: A server-side library for sending push notifications.
push-notify-apn library, program and test: Send push notifications to mobile iOS devices
push-notify-ccs library: ...
push-notify-general library: A general library for sending/receiving push notif. through dif. services.
pusher-http-haskell library and test: Haskell client library for the Pusher Channels HTTP API
pusher-ws library: Implementation of the Pusher WebSocket protocol
querystring-pickle library and test: Picklers for de/serialising Generic data types to and from query strings
RabbitMQ library: AMQP 0-9-1 client library for RabbitMQ servers
radius library: Remote Authentication Dial In User Service (RADIUS)
Ranka program: HTTP to XMPP omegle chats gate.
rclient library: Haskell client for Rserve
rdioh library and programs: A Haskell wrapper for Rdio's API.
recaptcha library: Functions for using the reCAPTCHA service in web applications.
reddit library and tests: Library for interfacing with Reddit's API
Redmine library and test: Library to access Redmine's REST services
reflex-backend-socket library and programs: Reflex bindings for TCP sockets
reflex-gadt-api library and program: Interact with a GADT API in your reflex-dom application.
reflex-libtelnet library: Reflex bindings for libtelnet
reliable-io library and programs: Bindings to the low-level reliable.io library.
remote-json library and tests: Remote Monad implementation of the JSON RPC protocol
remote-json-client library: Web client wrapper for remote-json
remote-json-server library: Web server wrapper for remote-json
remotion library and test: A library for client-server applications based on custom protocols
req library and tests: Easy-to-use, type-safe, expandable, high-level HTTP client library
req-conduit library, test and benchmark: Conduit helpers for the req HTTP client library
req-url-extra library, program and test: Provides URI/URL helper functions for use with Req
resolv library and test: Domain Name Service (DNS) lookup via the libresolv standard library routines
resolve library: A name resolusion library
resource-pool library: A high-performance striped resource pooling implementation
resource-pool-catchio library: Fork of resource-pool, with a MonadCatchIO constraint
resourcet-pool library: A small library to convert a Pool into an Acquire
riak library, test and benchmark: A Haskell client for the Riak decentralized data store
riak-protobuf library: Haskell types for the Riak protocol buffer API
riak-protobuf-lens library and program: Lenses for riak-protobuf
riemann library, program and tests: A Riemann client for Haskell
rncryptor library, programs, test and benchmark: Haskell implementation of the RNCryptor file format
roku-api library: Bindings to Roku's External Control API
rpc library: type safe rpcs provided as basic IO actions
rpc-framework library and program: a remote procedure call framework
rpf program: Receiver Policy Framework
rtcm library, programs and test: Haskell bindings for RTCM.
rtnetlink library, programs and test: Manipulate network devices, addresses, and routes on Linux
rtorrent-rpc library: A library for communicating with RTorrent over its XML-RPC interface.
rws program and test: Packet Generation
S3 library: Library for accessing S3 compatible storage services
s3-signer library and test: Pre-signed Amazon S3 URLs
sakuraio-platform library, programs and test: Haskell representation of messages exchanged on the sakura.io platform.
salvia library: Modular web application framework.
salvia-demo library and programs: Demo Salvia servers.
salvia-extras library: Collection of non-fundamental handlers for the Salvia web server.
salvia-protocol library: Salvia webserver protocol suite supporting URI, HTTP, Cookie and MIME.
salvia-sessions library: Session support for the Salvia webserver.
salvia-websocket library: Websocket implementation for the Salvia Webserver.
sasl library: SASL implementation using simple-pipe
sbp library, programs and test: SwiftNav's SBP Library
sbp2udp program: SBP to UDP
sc2-lowlevel library: Low-level Starcraft II API
sc2-support library: Support and utility library for sc2hs.
sc2hs library and program: An interface to the Starcraft II bot API
scalable-server library: Library for writing fast/scalable TCP-based services
scgi library: A Haskell library for writing SCGI programs.
scrape-changes library and test: Scrape websites for changes
scrobble library and program: Scrobbling server.
Scurry program: A cross platform P2P VPN application built using Haskell.
scuttlebutt-types library and test: generic types for Secure Scuttlebutt
second-transfer library and test: Second Transfer HTTP/2 web server
secure-sockets library: Secure point-to-point connectivity library
secureUDP library: Setups secure (unsorted) UDP packet transfer.
sendfile library: A portable sendfile library
sendgrid-v3 library and test: Sendgrid v3 API library
sentry library and programs: Process monitoring tool written and configured in Haskell
servant-errors library and test: Servant Errors wai-middlware
serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
ses-html-snaplet library: Snaplet for the ses-html package
shoap library: A very basic SOAP package
shopify library: A haskell API binding for shopify.com
simple-bluetooth library: Simple Bluetooth API for Windows and Linux (bluez)
simple-sendfile library and test: Cross platform library for the sendfile system call
simple-server library: Simple Server interface
simpleirc library and test: Simple IRC Library
simpleirc-lens library: Lenses for simpleirc types
simplesmtpclient library: Very simple SMTP Client
simplessh library: Simple wrapper around libssh2
skylark-client library and programs: Skylark client.
skype4hs library: Skype Desktop API binding for Haskell
slack library: Haskell API for interacting with Slack
smtp-mail library: Simple email sending via SMTP
smtp-mail-ng library: An SMTP client EDSL
smtp2mta program: Listen for SMTP traffic and send it to an MTA script
SMTPClient library: A simple SMTP client library
smtps-gmail library: Gmail SMTP Client
snap-blaze library: blaze-html integration for Snap
snap-blaze-clay library: blaze-html-clay integration for Snap
snap-routes library: Typesafe URLs for Snap applications.
snaplet-ses-html library: Snaplet for the ses-html package
sock2stream program: Tunnel a socket over a single datastream (stdin/stdout)
sockaddr library: Printing SockAddr
socket library and tests: An extensible socket library.
socket-activation library: systemd socket activation library
socket-sctp library and tests: STCP socket extensions library.
socket-unix library and tests: Unix domain sockets
sockets library, program, test and benchmarks: High-level network sockets
sockets-and-pipes library: Support for the Sockets and Pipes book
socketson library and programs: A small websocket backend provider.
socks library: Socks proxy (ver 5)
spacecookie library, program and test: Gopher server library and daemon
sphero library: Orbotix Sphero client library
splice library: Cross-platform Socket to Socket Data Splicing
sscgi library: Simple SCGI Library
ssh library and test: A pure-Haskell SSH server library.
ssh-known-hosts library, program and test: Read and interpret the SSH known-hosts file
sshtun program: Wrapper daemon to manage an ssh tunnel
starling library: A memcached client
statsd library: StatsD API.
statsd-client library: Statsd UDP client
statsd-datadog library: DataDog-flavored StatsD client.
stm-firehose library and test: Conduits and STM operations for fire hoses.
Stomp library: Client library for Stomp brokers.
stomp-conduit library: Stompl Conduit Client
stomp-patterns library: Stompl MOM Stomp Patterns
stomp-queue library: Stompl Client Library
stompl library: Stomp Parser and Utilities
stratux-http library: A library for using HTTP with stratux
stratux-websockets library: A library for using websockets with stratux
stunclient library and test: RFC 5389: Session Traversal Utilities for NAT (STUN) client
subnet library: subnetting calculator
supernova library and test: Apache Pulsar client for Haskell
syncthing-hs library and test: Haskell bindings for the Syncthing REST API
task program: A command line tool for keeping track of tasks you worked on
tasty-json library: JSON reporter for the tasty testing framework
tcp library: A purely functional TCP implementation
tcp-streams library and test: One stop solution for tcp client and server with tls support.
tcp-streams-openssl library and test: Tcp streams using openssl for tls support.
telegram library: Telegram API client
tellbot program: IRC tellbot
textocat-api library and test: Unofficial Haskell SDK for Textocat API -- http://textocat.com
tftp library, program and tests: A library for building tftp servers
themoviedb library, program and test: Haskell API bindings for http://themoviedb.org
tighttp library: Tiny and Incrementally-Growing HTTP library
time-warp library, programs and test: Distributed systems execution emulation
tinyMesh library: TinyMesh - communicating with auto-meshing sensor network
tld library and test: This project separates subdomains, domains, and top-level-domains from URLs.
tls library, test and benchmark: TLS/SSL protocol native implementation (Server and Client)
tls-debug programs: Set of programs for TLS testing and debugging
tls-extra library and program: TLS extra default values and helpers
top library and tests: Top (typed oriented protocol) API
torrent library: BitTorrent file parser and generater
toxcore library, program and test: A Tox protocol implementation in Haskell
toxcore-c library, program and test: Haskell bindings to the C reference implementation of Tox
transient-universe-tls library: transient with secure communications
tremulous-query library: Library for polling Tremulous servers
tuntap library: Interface to TUN/TAP drivers.
tuntap-simple library: A simple tun/tap library
twentefp-websockets library: ...
twidge program: Unix Command-Line Twitter and Identica Client
twitter program: A Haskell-based CLI Twitter client
uber library and test: Uber client for Haskell
udbus library and programs: Small DBus implementation
udbus-model library and program: Model API for udbus introspection and definitions
udp-streaming library: Streaming to and from UDP socket
uhttpc library and program: Minimal HTTP client library optimized for benchmarking
unbreak library and program: Secure and resilient remote file storage utility
unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
unliftio-streams library: Generalization of io-streams to MonadUnliftIO
uri-encode library and programs: Unicode aware uri-encoding
uri-encoder library, test and benchmark: A uri encoder to make your strings less readable
uri-templater library and test: Parsing & Quasiquoting for RFC 6570 URI Templates
urlcheck program: Parallel link checker
UrlDisp library: Url dispatcher. Helps to retain friendly URLs in web applications.
useragents library and program: A collection of user agents
vault-tool library: Client library for HashiCorp's Vault tool (via HTTP API)
vault-tool-server library and test: Utility library for spawning a HashiCorp Vault process
vault-trans library: A monad transformer for vault-tool
vrpn library and program: Bindings to VRPN.
wai-cors library and tests: CORS for WAI
wai-graceful library: Graceful shutdown for WAI applications.
wai-lens library: Lenses for WAI
wai-middleware-consul library and program: Wai Middleware for Consul
wai-middleware-prometheus library and test: WAI middlware for exposing http://prometheus.io metrics.
wai-request-spec library and benchmark: Declarative request parsing
wai-responsible library: Response interface for WAI.
wai-routes library and test: Typesafe URLs for Wai applications.
warp-dynamic library and program: Dynamic configurable warp HTTP server
warped library: Warp and Wai Library.
web3 library and tests: Web3 API for Haskell.
webfinger-client library: WebFinger client library
webserver library: HTTP server library
websockets library, programs, test and benchmark: A sensible and clean way to write WebSocket-capable servers in Haskell.
websockets-snap library: Snap integration for the websockets library
whois library: WHOIS client library.
windns library: Domain Name Service (DNS) lookup via the <windns.h>/dnsapi.dll standard library
winio library: I/O library for Windows
witty program: A network server to show bottlenecks of GHC
WL500gPControl programs: A simple command line tools to control the Asus WL500gP router
WL500gPLib library and program: A simple library to access to the WL 500gP router from the Haskell code
wobsurv library, program and test: A simple and highly performant HTTP file server
wol library and program: Send a Wake on LAN Magic Packet
wolf library and programs: Amazon Simple Workflow Service Wrapper.
wp-archivebot program: Subscribe to a wiki's RSS feed and archive external links
ws-chans library and test: Unagi chan based websocket client
wsedit program: A small tool to list, add and remove webseeds from a torrent file
wss-client library, program and test: A-little-higher-level WebSocket client.
wuss library: Secure WebSocket (WSS) clients
xcp library: Partial implementation of the XCP protocol with ethernet as transport layer.
xdcc program: A wget-like utility for retrieving files from XDCC bots on IRC
xml-push library: Push XML from/to client to/from server over XMPP or HTTP
XMMS library: XMMS2 client library.
xmpipe library: XMPP implementation using simple-PIPE
XMPP library: XMPP library
yak library and test: A strongly typed IRC library
yaml-rpc library: Simple library for network (HTTP REST-like) YAML RPC
yaml-rpc-scotty library: Scotty server backend for yaml-rpc
yaml-rpc-snap library: Snap server backend for yaml-rpc
yandex-translate library and test: Bindings to Yandex translate API
yeller library, test and benchmark: A Yeller Client For Haskell
yjftp library and program: CUI FTP client like 'ftp', 'ncftp'
yjftp-libs library and program: CUI FTP client like 'ftp', 'ncftp'
Yogurt library: A MUD client library
Yogurt-Standalone program: A functional MUD client
zeromq3-conduit library: Conduit bindings for zeromq3-haskell
zigbee-znet25 library and test: XBee ZNet 2.5 (ZigBee) wireless modem communications
zipkin library: Zipkin-style request tracing monad
zmcat library and program: Command-line tool for ZeroMQ.
zmqat program: A socat-like tool for zeromq library

Network APIs

antigate library: Interface for antigate.com captcha recognition API
dropbox-sdk library: A library to access the Dropbox HTTP API.
fizzbuzz-as-a-service program: FizzBuzz as a service
hsreadability library and test: Access to the Readability API.
liblastfm library and tests: Lastfm API interface
librandomorg library: Wrapper to Random.org API
network-api-support library: Toolkit for building http client libraries over Network.Http.Conduit
phone-push library: Push notifications for Android and iOS
pinboard library and test: Access to the Pinboard API
postcodes library: A library that gets postcode information from the uk-postcodes.com
postgrest library, program and tests: REST API for any Postgres database
postmark library and program: Library for postmarkapp.com HTTP Api
push-notifications library: Push notifications for Android and iOS
simplenote library: Haskell interface for the simplenote API.
strongswan-sql library, program and test: Interface library for strongSwan SQL backend
trajectory library and programs: Tools and a library for working with Trajectory.
twilio library and tests: Twilio REST API library for Haskell

Network Control

raketka library, program and test: distributed-process node

NetworkAPI

arxiv library: A client for the Arxiv API

NetworkAPIs

libstackexchange library, programs and test: StackExchange API interface

Networking

hans library, program and test: Network Stack
hans-pcap library: Driver for real ethernet devices for HaNS
hans-pfq library: Driver for real ethernet devices for HaNS
llsd library and programs: An implementation of the LLSD data system
network-hans library: HaNS to Network shims for easier HaNS integration
network-rpca library: A cross-platform RPC library
Pup-Events library and program: A networked event handling framework for hooking into other programs.
Pup-Events-Client library: A networked event handling framework for hooking into other programs.
Pup-Events-Demo programs: A networked event handling framework for hooking into other programs.
Pup-Events-PQueue library: A networked event handling framework for hooking into other programs.
Pup-Events-Server library: A networked event handling framework for hooking into other programs.
warp-grpc library: A minimal gRPC server on top of Warp.
wobsurv library, program and test: A simple and highly performant HTTP file server
zre library, programs and test: ZRE protocol implementation

Nix

autonix-deps library: Library for Nix expression dependency generation
autonix-deps-kf5 library and program: Generate dependencies for KDE 5 Nix expressions
cabal2nix library, programs and test: Convert Cabal files into Nix build instructions.
cachix library, program and test: Command line client for Nix binary cache hosting https://cachix.org
cachix-api library and test: Servant HTTP API specification for https://cachix.org
cli-nix library: Bindings to the nix command-line interface
dhall-nixpkgs program: Convert Dhall projects to Nix packages
distribution-nixpkgs library and test: Types and functions to manipulate the Nixpkgs distribution
haskell-overridez program: Manage nix overrides for haskell packages
hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
hercules-ci-cnix-expr library: Bindings for the Nix evaluator
hercules-ci-cnix-store library: Haskell bindings for Nix's libstore
hnix library, program, test and benchmark: Haskell implementation of the Nix language
hnix-store-core library and test: Core effects for interacting with the Nix store.
hnix-store-remote library and test: Remote hnix store
jenkinsPlugins2nix library, program and test: Generate nix for Jenkins plugins.
language-nix library: Data types and functions to represent the Nix language
libnix library and test: Bindings to the nix package manager
nix-freeze-tree library, program and test: Convert a tree of files into fixed-output derivations
nix-narinfo library, program and tests: Parse and render .narinfo files
nix-paths library: Knowledge of Nix's installation directories.
nix-thunk library and program: Lightweight dependency management with Nix
nixfromnpm program: Generate nix expressions from npm packages.
runmany program: Run multiple commands, interleaving output and errors
servant-nix library and test: Servant Nix content-type
simple-nix library and test: Simple parsing/pretty printing for Nix expressions
stack2nix library, program and test: Convert stack.yaml files into Nix build instructions.
stackage2nix library, program and test: Convert Stack files into Nix build instructions.
update-nix-fetchgit library, program and test: A program to update fetchgit values in Nix expressions
yarn2nix library, programs and test: Convert yarn.lock files to nix expressions

NLP

arpa library and program: Library for reading ARPA n-gram models
eng-stemmer library, program and test: An English language stemmer (Porter2)
gdelt library and test: GDELT V2 (Global Database of Events, Language, and Tone)
glider-nlp library and test: Natural Language Processing library
haskseg library and program: Simple unsupervised segmentation model
rake library: Rapid Automatic Keyword Extraction (RAKE)
stemmer-german library: Extract the stem of a German inflected word form.
syntaxnet-haskell library and test: Working with Google's SyntaxNet output files - CoNLL, Tree

Noise

hsnoise library: A coherent 3d noise library.
Noise library: A Haskell coherent noise generator based on libnoise

None

diff-gestalt library and test: A diff algorithm based on recursive longest common substrings

NonEmpty

non-empty-text library and tests: Non empty Data.Text type

Ntrol

acme-comonad library: A more efficient dualization

Number Theory

arithmetic library, program and test: Natural number arithmetic
arithmoi library, test and benchmarks: Efficient basic number-theoretic functions.
factor library, program and test: Factoring integers and polynomials
factory library, program and test: Rational arithmetic in an irrational world.
fast-arithmetic library, test and benchmark: Fast functions on integers.
integer-logarithms library and test: Integer logarithms.
integer-roots library and tests: Integer roots and perfect powers
mod library, test and benchmark: Fast type-safe modular arithmetic
nth-prime program and test: Computing the nth prime
Numbers library: An assortment of number theoretic functions
opentheory-divides library and test: The divides relation on natural numbers
opentheory-fibonacci library and test: Fibonacci numbers
opentheory-prime library and test: Prime natural numbers
pell library and test: Package to solve the Generalized Pell Equation.
primesieve library and programs: FFI bindings for the primesieve library.

Numeric

approx library, program and test: Easy-to-use emulation of approximate, ranges and tolerances in Haskell
approximate library: Approximate discrete values and numbers
bed-and-breakfast library and test: Efficient Matrix and Vector operations in 100% Haskell.
compensated library and benchmark: Compensated floating-point arithmetic
decimal-arithmetic library and tests: An implementation of the General Decimal Arithmetic Specification
dense-linear-algebra library and test: Simple and incomplete pure haskell implementation of linear algebra
detour-via-sci library and tests: JSON and CSV encoding for rationals as decimal point numbers.
detour-via-uom library and tests: JSON and CSV encoding for quantities.
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
exp-extended library: floating point with extended exponent range
fast-math library: Non IEEE-754 compliant compile-time floating-point optimisations
fixed library: Signed 15.16 precision fixed point arithmetic
fp-ieee library, tests and benchmark: IEEE 754-2019 compliant operations
ghc-bignum : GHC BigNum library
gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
hafar library and test: Affine arithmetic library for Haskell
half library and test: Half-precision floating-point
haskell-mpfr library: Correctly-rounded arbitrary-precision floating-point arithmetic
hasty-hamiltonian library and test: Speedy traversal through parameter space.
hgmp library and test: Haskell interface to GMP
HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
hyperloglog library: An approximate streaming (constant space) unique object counter
inf-interval library and test: Non-contiguous interval data types with potentially infinite ranges.
integer-gmp library: Integer library based on GMP
integer-pure library: A pure-Haskell implementation of arbitrary-precision Integers.
ipopt-hs library and program: haskell binding to ipopt and nlopt including automatic differentiation
LATS library: Linear Algebra on Typed Spaces
lbfgs library: L-BFGS optimization
lean-peano library and tests: A maximally lazy, simple implementation of the Peano numbers with minimal dependencies.
lens-aeson library: Law-abiding lenses for aeson
limp library and test: representation of Integer Linear Programs
limp-cbc library and tests: bindings for integer linear programming solver Coin/CBC
log-domain library: Log-domain arithmetic
math-extras library and test: A variety of mathematical utilities
math-functions library, test and benchmark: Collection of tools for numeric computations
mcmc-samplers library: Combinators for MCMC sampling
mcmc-types library: Common types for sampling.
microlens-aeson library and test: Law-abiding lenses for Aeson, using microlens.
mighty-metropolis library and tests: The Metropolis algorithm.
mwc-probability-transition library and test: A Markov stochastic transition operator with logging
nat-sized-numbers library and test: Variable-sized numbers from type-level nats.
nats library: Natural numbers
nlopt-haskell library and test: Low-level bindings to the NLOPT optimization library
notzero library: A data type for representing numeric values, except zero.
nuha library and test: Multidimensional arrays, Linear algebra, Numerical analysis
numeric-qq library and test: Quasi-quoters for numbers of different bases
numeric-ranges library and test: A framework for numeric ranges.
recommender-als library: Recommendations using alternating least squares algorithm
repr library: Render overloaded expressions to their textual representation.
rounded library and test: Correctly-rounded arbitrary-precision floating-point arithmetic
rounded-hw library, tests and benchmark: Directed rounding for built-in floating types
rungekutta library: A collection of explicit Runge-Kutta methods of various orders
safe-decimal library and tests: Safe and very efficient arithmetic operations on fixed decimal point numbers
safe-numeric library and test: Safe arithmetic operations.
sdnv library: Self-delimiting numeric values encoding library
siggy-chardust library and tests: Rounding rationals to significant digits and decimal places.
simple-units library and test: Simple arithmetic with SI units using type-checked dimensional analysis.
sparse-linear-algebra library and test: Numerical computing in native Haskell
stern-brocot library, test and benchmark: Positive rational numbers represented as paths in the Stern-Brocot tree
taco library and test: Tensor Algebra COmpiler
tdigest library and test: On-line accumulation of rank-based statistics
tdigest-Chart library and test: Chart generation from tdigest
th-cas library and test: Compile-time CAS(Computer Algebra System)
vector-fft library: Native FFT and IFFT for vector
wide-word-instances library: Instances for wide-word
word library and test: Words of arbitrary size

Numerical

AC-Angle library: Angles in degrees and radians.
AC-Colour library: Efficient RGB colour types.
AC-HalfInteger library: Efficient half-integer type.
AC-Terminal library: Trivial wrapper over ansi-terminal.
AC-Vector library: Efficient geometric vectors and transformations.
AC-Vector-Fancy library: Fancy type-system stuff for AC-Vector
affine-invariant-ensemble-mcmc library: General-purpose sampling
altfloat library: Alternative floating point support for GHC.
applicative-numbers library: Applicative-based numeric instances
bindings-eskit library: Bindings to ESKit.
bindings-levmar library: Low level bindings to the C levmar (Levenberg-Marquardt) library
casadi-bindings library and tests: mid-level bindings to CasADi
casadi-bindings-control library: low level bindings to casadi-control
casadi-bindings-core library: autogenerated low level bindings to casadi
casadi-bindings-internal library: low level bindings to CasADi
casadi-bindings-ipopt-interface library: low level bindings to casadi-ipopt_interface
casadi-bindings-snopt-interface library: low level bindings to casadi-snopt_interface
clifford library, program, test and benchmark: A Clifford algebra library
cmaes library and test: CMA-ES wrapper in Haskell
connections library, program and test: Orders, Galois connections, and lattices.
continued-fractions library and test: Continued fractions.
converge library: Limit operations for converging sequences
DifferentialEvolution library: Global optimization using Differential Evolution
dvda library and test: Efficient automatic differentiation and code generation
estimator library: State-space estimation algorithms such as Kalman Filters
fibonacci library: Fast computation of Fibonacci numbers.
fixed-point library: Binary fixed-point arithmetic
fixed-point-vector library: Unbox instances for the fixed-point package
fixed-point-vector-space library: vector-space instances for the fixed-point package
float-binstring library and test: C99 printf "%a" style formatting and parsing
gamma library and test: Gamma function and related functions.
gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
hfoil library and program: Hess-Smith panel code for inviscid 2-d airfoil analysis
hmatrix-nlopt library and test: Interface HMatrix with the NLOPT minimizer
HROOT library: Haskell binding to the ROOT data analysis framework
HROOT-core library: Haskell binding to ROOT Core modules
HROOT-graf library: Haskell binding to ROOT Graf modules
HROOT-hist library: Haskell binding to ROOT Hist modules
HROOT-io library: Haskell binding to ROOT IO modules
HROOT-math library: Haskell binding to ROOT Math modules
HROOT-tree library: Haskell binding to ROOT Tree modules
ieee-utils library: ieee-utils
ieee-utils-tempfix library: ieee-utils
ks-test library: Kolmogorov distribution and Kolmogorov-Smirnov test.
levmar library: An implementation of the Levenberg-Marquardt algorithm
levmar-chart library and program: Plots the results of the Levenberg-Marquardt algorithm in a chart
libroman library and test: Use Roman Numerals as a Numeric Datatype (sort of)
magmas library: Magma-like objects.
monoids library: Deprecated: Use 'reducers'
numerals library, test and benchmark: Convert numbers to number words
numerals-base library and test: Convert numbers to number words
numeric-limits library: Various floating point limit related constants.
numeric-tools library and test: Collection of numerical tools for integration, differentiation etc.
poly library, tests and benchmark: Polynomials
polynomial library and test: Polynomials
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
primes library: Efficient, purely functional generation of prime numbers
primes-type library, test and benchmark: Type-safe prime numbers.
pure-fft library: Fast Fourier Transform
quote-quot library, test and benchmark: Divide without division
RANSAC library and test: The RANSAC algorithm for parameter estimation.
reducers library: Semigroups, specialized containers and a general map/reduce framework
rings library: Ring-like objects.
roman-numerals library: Parsing and pretty printing of Roman numerals
roots library: Root-finding algorithms (1-dimensional)
safe-decimal library and tests: Safe and very efficient arithmetic operations on fixed decimal point numbers
sde-solver library: Distributed SDE solver
simple-units library and test: Simple arithmetic with SI units using type-checked dimensional analysis.
simple-vec3 library, tests and benchmark: Three-dimensional vectors of doubles with basic operations
splines library, test and benchmark: B-Splines, other splines, and NURBS.

Numerics

fast-arithmetic library, test and benchmark: Fast functions on integers.
fast-combinatorics library, test and benchmark: Fast combinatorics.

OAuth

hoauth library: A Haskell implementation of OAuth 1.0a protocol.
ory-hydra-client library and test: Auto-generated ory-hydra API Client

Object Storage

minio-hs library, programs and tests: A MinIO Haskell Library for Amazon S3 compatible cloud storage.

OCaml

language-ocaml library and test: Language tools for manipulating OCaml programs in Haskell

Ocilib

hocilib library and test: FFI binding to OCILIB

ODPI-C

odpic-raw library and test: Oracle Database Bindings

Office

pomodoro program: pomodoro timer

OOP

boop library and test: OOP primitives for Haskell

OpenAPI

openapi-typed library and test: Types for OpenAPI
openapi3 library, program and tests: OpenAPI 3.0 data model

Opengl

easytensor-vulkan library: Use easytensor with vulkan-api.
vulkan-api library: Low-level low-overhead vulkan api bindings

OpenLayers

olwrapper library and program: An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay

OpenTelemetry

opentelemetry library
opentelemetry-extra library, programs, test and benchmark
opentelemetry-http-client library
opentelemetry-lightstep library and program
opentelemetry-wai library

Operating System

manatee library and program: The Haskell/Gtk+ Integrated Live Environment
manatee-all library and program: Virtual package to install all Manatee packages.
manatee-anything library and program: Multithread interactive input/search framework for Manatee
manatee-core library: The core of Manatee.

Operations

docker-build-cacher library and program: Builds a docker image and caches all of its intermediate stages

Optics

aeson-optics library: Law-abiding optics for aeson
generic-optics-lite library and test: Monomorphic field opics like with generic-lens
indexed-profunctors library: Utilities for indexed profunctors
optics library, test and benchmarks: Optics as an abstract interface
optics-core library: Optics as an abstract interface: core definitions
optics-extra library: Extra utilities and instances for optics-core
optics-th library and test: Optics construction using TemplateHaskell
optics-vl library: Utilities for compatibility with van Laarhoven optics
polysemy-optics library: Optics for Polysemy.
prolens library and tests: Profunctor-based lightweight implementation of optics
ral-optics library: Length-indexed random access lists: optics utilities.
refractor library, test and benchmark: See README for more info
strict-optics library: Optics for types in strict package
template-haskell-optics library: Optics for template-haskell types
these-optics library: Optics for These
vec-optics library: Vec: length-indexed (sized) list: optics support

Optimisation

circle-packing library: Simple heuristic for packing discs of varying radii in a circle
combinatorial-problems library: ...
GA library: Genetic algorithm library
genprog library: Genetic programming library
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
ipopt-hs library and program: haskell binding to ipopt and nlopt including automatic differentiation
local-search library: Generalised local search within Haskell, for applications in combinatorial optimisation.
metaheuristics library: Generalised local search within Haskell, for applications in combinatorial optimisation.
MIP library and test: Library for using Mixed Integer Programming (MIP)
MIP-glpk library and test: A GLPK backend to the MIP library.
moo library and test: Genetic algorithm library
nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
OptDir library: The OptDir type for representing optimization directions.
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc

Optimization

cmaes library and test: CMA-ES wrapper in Haskell
DifferentialEvolution library: Global optimization using Differential Evolution
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
hermit-syb library: HERMIT plugin for optimizing Scrap-Your-Boilerplate traversals.
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
matroid library and test: matroid (combinatorial pre-geometries) library
minizinc-process library and test: A set of helpers to call minizinc models.
MIP library and test: Library for using Mixed Integer Programming (MIP)
MIP-glpk library and test: A GLPK backend to the MIP library.
moo library and test: Genetic algorithm library
nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
OptDir library: The OptDir type for representing optimization directions.
pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
spaceprobe library, test and benchmark: Optimization over arbitrary search spaces
spsa library, test and benchmark: Simultaneous Perturbation Stochastic Approximation Optimization Algorithm
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
typeparams library: ...

Options

commander-cli library and test: A command line argument/option parser library
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
harg library and tests: Haskell program configuration using higher kinded data
hasql-optparse-applicative library: "optparse-applicative" parsers for "hasql"
hasql-postgres-options library: An "optparse-applicative" parser for "hasql-postgres"
optima library and test: Simple command line interface arguments parser
optima-for-hasql library: Command-line arguments parsing for Hasql
optparse-applicative library and test: Utilities and combinators for parsing command line options
optparse-applicative-simple library and test: Simple command line interface arguments parser
optparse-enum library: An enum-text based toolkit for optparse-applicative
optparse-simple library, program and test: Simple interface to optparse-applicative
symantic-cli library: Symantics for parsing and documenting a CLI
uu-options library: Parse command line options using uu-interleave and uu-parsinglib

Oracle

hocilib library and test: FFI binding to OCILIB
odpic-raw library and test: Oracle Database Bindings

Orphan Instances

bcp47-orphans library and test: BCP47 orphan instances

Other

acme-kitchen-sink library: A place for dumping that does-not-feel-right code while you improve it
chevalier-common library: Query interface for Chevalier
cj-token library, program and test: A new Haskeleton package.
external-sort library: Sort large arrays on your hard drive. Kind of like the unix util sort.
fcf-containers library, programs and tests: Data structures and algorithms for first-class-families
first-class-families library and test: First-class type families
flippers library: Variations on flip for multiple arguments
generic-data-surgery library and tests: Surgery for generic data types
genesis library and test: Opinionated bootstrapping for Haskell web services.
genesis-test library and test: Opinionated bootstrapping for Haskell web services.
hdiff library, program and test: Pattern-Expression-based differencing of arbitrary types.
hsgtd program: Console-based gettings-things-done application
htodo program: A todo application.
locators library and test: Human exchangable identifiers and locators
logging-effect-extra library and program: Supplemental packages for `logging-effect`.
logging-effect-extra-file library and programs: TH splices to augment log messages with file info
logging-effect-extra-handler library and programs: Handy logging handler combinators
lub library: information operators: least upper bound (lub) and greatest lower bound (glb)
marquise library, programs and test: Client library for Vaultaire
pdynload library: pdynload is polymorphic dynamic linking library.
ramus library, test and benchmark: Elm signal system for Haskell
RandomDotOrg library: Interface to random.org
require library, programs, test and benchmark: Scrap your qualified import clutter
unamb library and program: Unambiguous choice
vaultaire-common library and tests: Common types and instances for Vaultaire
verify library, program and test: A new Haskeleton package.

OverloadeLabels

generic-lens-labels library: GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics

Package Management

cpkg library, program and test: Build tool for C
policeman library, program and test: Haskell PVP version adviser

Packaging

cpkg library, program and test: Build tool for C

PagerDuty

pagerduty library: Client library for PagerDuty Integration and REST APIs.

Parallel

par-traverse library: Traverse a directory in parallel

Parallelism

abstract-par library: Type classes generalizing the functionality of the 'monad-par' library.
abstract-par-accelerate library: Provides the class ParAccelerate, nothing more.
accelerate library and tests: An embedded language for accelerated array processing
accelerate-cuda library: Accelerate backend for NVIDIA GPUs
accelerate-llvm library: Accelerate backend component generating LLVM IR
accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
accelerate-utility library: Utility functions for the Accelerate framework
cnc-spec-compiler program: Compiler/Translator for CnC Specification Files.
concurrent-supply library and test: A fast concurrent unique identifier supply with a pure API
edenmodules library: Semi-explicit parallel programming library
fpnla-examples library and tests: Example implementations for FPNLA library
gang-of-threads library: Non-deterministic parallelism with bags
haskell-cnc library and program: Library for parallel programming in the Intel Concurrent Collections paradigm.
hdph library and programs: Haskell distributed parallel Haskell
LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
longshot library, program and test: Fast Brute-force search using parallelism
massiv library and test: Massiv (Массив) is an Array Library.
massiv-scheduler library and tests: Work stealing scheduler for Massiv (Массив) and other parallel applications.
massiv-test library and tests: Library that contains generators, properties and tests for Massiv Array Library.
meta-par library: Provides the monad-par interface, but based on modular scheduler "mix-ins".
meta-par-accelerate library: Support for integrated Accelerate computations within Meta-par.
monad-par library and test: A library for parallel programming based on a monad
monad-par-extras library: Combinators and extra features for Par monads
parallel library: Parallel programming library
Parallel-Arrows-BaseSpec library and test: BaseSpecs used for @Parallel-Arrows-Definition@ and Co.
Parallel-Arrows-Definition library: Multithreaded evaluation using Arrows.
Parallel-Arrows-Eden library and test: Eden based backend for @Parallel-Arrows-Definition@.
Parallel-Arrows-Multicore library and test: GpH based backend for @Parallel-Arrows-Definition@ in a multicore variant.
Parallel-Arrows-ParMonad library and test: Par Monad (@monad-par@) based backend for @Parallel-Arrows-Definition@.
pooled-io library and program: Run jobs on a limited number of threads and support data dependencies
scan-vector-machine library and test: An implementation of the Scan Vector Machine instruction set in Haskell
scheduler library and tests: Work stealing scheduler.
schedyield library: Exposes standard POSIX function sched_yield.
wigner-ville-accelerate library and test: Wigner-ville transform using the Accelerate library

Parry

Parry library: A proven synchronization server for high performance computing.

Parser

ats-format program: A source-code formatter for ATS
binary-parser library and test: A highly-efficient but limited parser API specialised for bytestrings
descrilo library: Loads a list of items with fields
egison-pattern-src library and test: Manipulating Egison patterns: abstract syntax, parser, and pretty-printer
egison-pattern-src-haskell-mode library and test: Parser and pretty printer for Egison pattern expressions in Haskell source code
egison-pattern-src-th-mode library and test: Parser and pretty printer for Egison pattern expressions to use with TH
fix-parser-simple library: Simple fix-expression parser
hs-logo program and test: Logo interpreter written in Haskell
htoml library, test and benchmark: Parser for TOML files
hw-parser library and tests: Simple parser support
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
list-t-html-parser library and test: Streaming HTML parser
megalisp library: lisp parser using mega-parsec
pangraph library and test: A set of parsers for graph languages and conversions to graph libaries.
parser241 library and test: An interface to create production rules using augmented grammars
pipes-aeson library: Encode and decode JSON streams using Aeson and Pipes.
pipes-attoparsec library and test: Attoparsec and Pipes integration.
platinum-parsing library, program and test: General Framework for compiler development.
record-syntax library, tests and benchmark: A library for parsing and processing the Haskell syntax sprinkled with anonymous records
scotty-params-parser library: HTTP-request's query parameters parser abstraction for "scotty"
stompl library: Stomp Parser and Utilities
timerep library and test: Parse and display time according to some RFCs (RFC3339, RFC2822, RFC822)
tokenify library: A regex lexer
waargonaut library and tests: JSON wrangling
xeno library, test and benchmarks: A fast event-based XML parser in pure Haskell
xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)

Parser Builder

yapb library, programs and test: Yet Another Parser Builder (YAPB)

Parser Combinators

XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

ParserCombinators

uu-parsinglib library: Fast, online, error-correcting, monadic, applicative, merging, permuting, ...

Parsers

attoparsec-time library: Attoparsec parsers of time
definitive-parser library: A parser combinator library for the Definitive framework
headed-megaparsec library: More informative parser
matrix-market-attoparsec library and test: Parsing and serialization functions for the NIST Matrix Market format
nmis-parser library and test: NMIS file parser
ping-parser-attoparsec library, program and test: Attoparsec parsers of ping utility

Parsing

aeson-value-parser library: API for parsing "aeson" JSON tree into Haskell types
algebraic-graphs-io library and test: I/O utilities and datasets for algebraic-graphs
antlrc library and program: Haskell binding to the ANTLR parser generator C runtime library.
appar library: A simple applicative parser
aterm library: serialisation for Haskell values with sharing support
attoparsec library, test and benchmark: Fast combinator parsing for bytestrings and text
attoparsec-conduit library: Consume attoparsec parsers via conduit. (deprecated)
attoparsec-data library: Parsers for the standard Haskell data types
attoparsec-enumerator library: Pass input from an enumerator to an Attoparsec parser.
attoparsec-expr library: Port of parsec's expression parser to attoparsec.
attoparsec-iso8601 library: Parsing of ISO 8601 dates, originally from aeson.
attoparsec-parsec library and tests: An Attoparsec compatibility layer for Parsec
attoparsec-text library: (deprecated)
attoparsec-text-enumerator library: (deprecated)
binary library, tests and benchmarks: Binary serialisation for Haskell values using lazy ByteStrings
binary-bits library and test: Bit parsing/writing on top of binary.
binary-ext library and test: An alternate with strong-typed errors for `Data.Binary.Get` monad from `binary` package.
binary-generic library: Generic binary serialisation using binary and syb.
binary-generic-combinators library and test: ...
binary-io library and test: Read and write values of types that implement Binary
binary-orphans library and test: Compatibility package for binary; provides instances
binary-strict library and test: Binary deserialisation using strict ByteStrings
bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring
BNFC library, program and tests: A compiler front-end generator.
BNFC-meta library: Deriving Parsers and Quasi-Quoters from BNF Grammars
bond-haskell library, test and benchmark: Runtime support for BOND serialization
boolexpr library: Boolean expressions with various representations and search queries.
boomerang library: Library for invertible parsing and printing
bytearray-parsing library: Parsing of bytearray-based data
bytestring-substring library: break bytestrings up into substrings
bytestringparser library: Combinator parsing with Data.ByteString.Lazy
bytestringparser-temporary library: Combinator parsing with Data.ByteString.Lazy
caerbannog library and test: That rabbit's got a vicious streak a mile wide!
cassava-megaparsec library and test: Megaparsec parser of CSV files that plays nicely with Cassava
cassette library: A combinator library for simultaneously defining parsers and pretty printers.
cereal library and test: A binary serialization library
cereal-ieee754 library: Floating point support for the 'cereal' serialization library
cereal-io-streams library, test and benchmark: io-streams support for the cereal binary serialization library
cereal-streams library, test and benchmark: Use cereal to encode/decode io-streams.
ChristmasTree library: Alternative approach of 'read' that composes grammars instead of parsers.
chronos library, tests and benchmark: A high-performance time library
cmark-patterns library: Pattern synonyms for cmark
codec-libevent library and program: Cross-platform structure serialisation
commander-cli library and test: A command line argument/option parser library
concrete-relaxng-parser program: A parser driven by a standard RELAX NG schema with concrete syntax extensions.
conf library and test: Parser for Haskell-based configuration files.
ConfigFile library and program: Configuration file reading & writing
ConfigFileTH library: Template haskell for reading ConfigFiles.
construct library and tests: Haskell version of the Construct library for easy specification of file formats
cron library, test and benchmark: Cron datatypes and Attoparsec parser
cron-compat library and test: Cron datatypes and Attoparsec parser
crypto-pubkey-openssh library and test: OpenSSH keys decoder/encoder
data-reify library, programs and test: Reify a recursive data structure into an explicit graph.
data-stm32 library, programs and test: ARM SVD and CubeMX XML parser and pretty printer for STM32 family
data-treify library: Reify a recursive data structure into an explicit graph.
derp library: Derivative Parsing
descriptive library and test: Self-describing consumers/parsers; forms, cmd-line args, JSON, etc.
diff-parse library and test: A parser for diff file formats
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
dtd-text library: Parse and render XML DTDs
Earley library, programs, test and benchmark: Parsing all context-free grammars using Earley's algorithm.
ebnf-bff library and program: Parser combinators & EBNF, BFFs!
EEConfig library: ExtremlyEasyConfig - Extremly Simple parser for config files
emacs-keys library and tests: library to parse emacs style keybinding into the modifiers and the chars
expat-enumerator library: Enumerator-based API for Expat
expression-parser library: Generalization of parsec's expression parser.
extensions library, program and test: Parse Haskell Language Extensions
fastparser library and benchmark: A fast, but bare bones, bytestring parser combinators library.
fez-conf library: Simple functions for loading config files
fit library and test: FIT file decoder
fixhs library and program: FIX (co)parser
flat library and tests: Principled and efficient bit-oriented binary serialization.
flatparse library and benchmark: High-performance parsing from strict bytestrings
flight-igc library: A parser for IGC files.
flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.
foscam-filename library and test: Foscam File format
foscam-sort library, program and test: Foscam File format
fuzzy-dates library and test: Libary for parsing dates in strings in varied formats.
fuzzy-parse library and test: Tools for processing unstructured text data
gather library: An applicative for parsing unordered things, heterogenous sorting
gcodehs library, program and test: GCode processor
getflag library: Command-line parser.
grammar-combinators library: A parsing library of context-free grammar combinators.
grammatical-parsers library, programs, tests and benchmark: parsers that combine into grammars
Grempa library: Embedded grammar DSL and LALR parser generator
harg library and tests: Haskell program configuration using higher kinded data
hascal library and program: tiny calculator library and command-line program
haskell-modbus library and test: A cereal-based parser for the Modbus protocol
headed-megaparsec library: More informative parser
hextream library and tests: Streaming-friendly XML parsers
hourglass-fuzzy-parsing library: A small library for parsing more human friendly date/time formats.
hsemail library and test: Parsec parsers for the Internet Message format (e-mail)
hsemail-ns library and tests: Internet Message Parsers
hslogger-reader library and programs: Parsing hslogger-produced logs.
hsmisc library and test: A collection of miscellaneous modules
hspec-attoparsec library and test: Utility functions for testing your attoparsec parsers with hspec
hspec-megaparsec library and test: Utility functions for testing Megaparsec parsers with Hspec
hspec-parsec library and test: Hspec expectations for testing Parsec parsers
html-entities library: A codec library for HTML-escaped text and HTML-entities
html-tokenizer library and test: An "attoparsec"-based HTML tokenizer
inchworm library: Simple parser combinators for lexical analysis.
incremental-parser library, test and benchmark: Generic parser library capable of providing partial results from partial input.
indentation library: Indentation sensitive parsing combinators for Parsec and Trifecta
indentation-core library: Indentation sensitive parsing combinators core library
indentation-parsec library and test: Indentation sensitive parsing combinators for Parsec
indentation-trifecta library and test: Indentation sensitive parsing combinators for Trifecta
IndentParser library: Combinators for parsing indentation based syntatic structures
indents library and test: indentation sensitive parser-combinators for parsec
infix library: Infix expression re-parsing (for HsParser library)
input-parsers library: Extension of the parsers library with more capability and efficiency
iteratee-parsec library: Package allowing parsec parser initeratee
json-incremental-decoder library and test: Incremental JSON parser with early termination and a declarative DSL
json-pointer library: JSON Pointer parsing and interpretation utilities
kangaroo library: Binary parsing with random access.
Kawaii-Parser library: A simple parsing library.
lex-applicative library, test and benchmark: See README for more info
libxml-enumerator library: Enumerator-based API for libXML's SAX interface
libxml-sax library: Bindings for the libXML2 SAX interface
lispparser library: Simple parser for LISP S-expressions
list-t-attoparsec library and test: An "attoparsec" adapter for "list-t"
LParse library and test: A continuation-based parser library
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
makefile library and test: Simple Makefile parser and generator
megaparsec library and benchmarks: Monadic parser combinators
megaparsec-tests library and test: Test utilities and the test suite of Megaparsec
mtlparse library: parse library using mtl package
multiarg library, programs and test: Command lines for options that take multiple arguments
netstring-enumerator library: Enumerator-based netstring parsing
network-attoparsec library and test: Utility functions for running a parser against a socket
nextstep-plist library: NextStep style plist parser and printer
opentheory-parser library and test: Stream parsers
optima library and test: Simple command line interface arguments parser
optparse-applicative library and test: Utilities and combinators for parsing command line options
optparse-applicative-simple library and test: Simple command line interface arguments parser
optparse-enum library: An enum-text based toolkit for optparse-applicative
papillon library and program: packrat parser
parco library: Generalised parser combinators
parco-attoparsec library: Generalised parser combinators - Attoparsec interface
parco-parsec library: Generalised parser combinators - Parsec interface
PArrows library: Arrow parser combinators similar to Parsec
parse-dimacs library: DIMACS CNF parser library
parsec library and test: Monadic parser combinators
parsec-extra library: Some miscellaneous basic string parsers.
parsec-numbers library: Utilities for parsing numbers from strings
parsec-numeric library and test: Parsec combinators for parsing Haskell numeric types.
parsec-parsers library and test: Parsing instances for Parsec
parsec-permutation library and test: Applicative permutation parser for Parsec intended as a replacement for Text.Parsec.Perm.
parsec-trace library: Add a hierarchical trace to Parsec parsers.
parsec-utils library: Utility functions and combinators for Text.Parsec
parsec1 library: Portable monadic parser combinators
parsec2 library: Monadic parser combinators
parsec3 library: Monadic parser combinators
parsec3-numbers library: Utilities for parsing numbers from Char sequences
ParsecTools library: Parsec combinators for more complex objects.
parsek library: Parallel Parsing Processes
parsely library
parser-combinators library: Lightweight package providing commonly useful parser combinators
parser-combinators-tests test: Test suite of parser-combinators
ParserFunction library: Parse and evaluate mathematical expressions.
parsers library and test: Parsing combinators
parsers-megaparsec library: `parsers` instances for Megaparsec
parsimony library: Monadic parser combinators derived from Parsec
parsix library and test: Parser combinators with slicing, error recovery, and syntax highlighting
penn-treebank library: Tools for manipulating the Penn TreeBank
penntreebank-megaparsec library and test: Parser combinators for trees in the Penn Treebank format
permute library: Generalised permutation parser combinator
persist library and test: Minimal serialization library with focus on performance
persist-state library and test: Serialization library with state and leb128 encoding
picoparsec library, test and benchmark: Fast combinator parsing for bytestrings and text
pipes-parse library: Parsing infrastructure for the pipes ecosystem
polar-configfile library and test: Fork of ConfigFile for Polar Game Engine
polyparse library: A variety of alternative parser combinator libraries.
ponder library: PEG parser combinator
postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
postgresql-syntax library and tests: PostgreSQL AST parsing and rendering
property-list library: Apple property list parser
RefSerialize library: Write to and read from ByteStrings maintaining internal memory references
replace-attoparsec library and tests: Find, replace, and split string patterns with Attoparsec parsers (instead of regex)
replace-megaparsec library and tests: Find, replace, and split string patterns with Megaparsec parsers (instead of regex)
rere library, test and benchmarks: Regular-expressions extended with fixpoints for context-free powers
RLP library and test: RLP serialization as defined in Ethereum Yellow Paper
roman-numerals library: Parsing and pretty printing of Roman numerals
SableCC2Hs library and program: Generate a parser (in Haskell) with the SableCC parser generator.
safecopy library and tests: Binary serialization with version control.
safecopy-store library and test: Binary serialization with version control.
scanner library, test and benchmark: Fast non-backtracking incremental combinator parsing for bytestrings
scanner-attoparsec library and test: Inject attoparsec parser with backtracking into non-backtracking scanner
sexp library, program and test: S-Expression parsing/printing made fun and easy
simple-atom library: Atom (or symbol) datatype for fast comparision and sorting.
simple-parser library and test: Simple parser combinators
streaming-binary library and test: Streaming interface to binary.
strptime library: Efficient parsing of LocalTime using a binding to C's strptime, ...
substring-parser library and test: Match / replace substrings with a parser combinators.
subtitleParser library: A parser for .srt and .sub files
supplemented library and test: Early termination for monads
SVG2Q program: Code generation tool for Quartz code from a SVG.
svg2q program: Code generation tool for Quartz code from a SVG.
symantic-cli library: Symantics for parsing and documenting a CLI
symantic-parser library and test: Parser combinators statically optimized and staged via typed meta-programming
syntactical library: Distfix expression parsing library
tconfig library: Simple text configuration file parser library.
text-lips library: Monadic parsing combinator library with attention to locations
time-parsers library and test: Parsers for types in `time`.
tlex library and tests: A lexer generator
tlex-core library and tests: A lexer generator
tlex-debug library and tests: Debug utilities for Tlex
tlex-encoding library and tests: Encoding plugin for Tlex
tlex-th library and tests: TemplateHaskell plugin for Tlex
tptp library and tests: Parser and pretty printer for the TPTP language
tree-sitter library and test: Unstable bindings for the tree-sitter parsing library.
trifecta library and test: A modern parser combinator library with convenient diagnostics
unparse-attoparsec library and tests: An attoparsec roundtrip
utc library and test: A pragmatic time and date library.
utf library, test and benchmark: UTF-8
uu-interleaved library: An interleaving combinator for use with applicative style implementations.
uu-parsinglib library: Fast, online, error-correcting, monadic, applicative, merging, permuting, ...
uu-tc library: Haskell 98 parser combinators for INFOB3TC at Utrecht University
uulib library: Haskell Utrecht Tools Library
vcs-revision library: Facilities for accessing the version control revision of the current directory.
vflow-types library and tests: types for ingesting vflow data with aeson
weighted-regexp library and programs: Weighted Regular Expression Matcher
WikimediaParser library: A parser for wikimedia style article markup.
winery library, program, test and benchmark: A compact, well-typed seralisation format for Haskell values
wire-streams library, test and benchmark: Fast binary io-streams adapter.
xml-parsec library: Parsing XML with Parsec
xml-query library: A parser-agnostic declarative API for querying XML-documents
xml-query-xml-conduit library: A binding for the "xml-query" and "xml-conduit" libraries
xml-query-xml-types library and test: An interpreter of "xml-query" queries for the "xml-types" documents
XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP
yajl-enumerator library: Enumerator-based interface to YAJL, an event-based JSON implementation
yoctoparsec library: A truly tiny monadic parsing library
zydiskell library and test: Haskell language binding for the Zydis library, a x86/x86-64 disassembler.

Password

passman-cli program: Deterministic password generator command line interface
passman-core library and tests: Deterministic password generator core
scat program and test: Generates unique passwords for various websites from a single password.
Tahin library and program: Tahin Password Generator
wordpass library and program: Dictionary-based password generator

Pattern

cast library: Abstact cast pattern
first-class-patterns library: First class patterns and pattern matching, using type families
mini-egison library, program and test: Template Haskell Implementation of Egison Pattern Matching
sweet-egison library, test and benchmarks: Shallow embedding implementation of non-linear pattern matching

Pattern Classification

DecisionTree library: A very simple implementation of decision trees for discrete attributes.
svm-simple library: Medium level, simplified, bindings to libsvm

Pattern Recognition

hps-kmeans library: A nice implementation of the k-Means algorithm.

PDF

haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
hpdft library and program: A tool for looking through PDF file using Haskell
manatee-pdfviewer library and program: PDF viewer extension for Manatee.
pdf-toolbox-content library and test: A collection of tools for processing PDF files
pdf-toolbox-core library and test: A collection of tools for processing PDF files.
pdf-toolbox-document library and test: A collection of tools for processing PDF files.
pdf-toolbox-viewer program: Simple pdf viewer
pdfname program: Name a PDF file using information from the pdfinfo command
pdfsplit program: split two-column PDFs, so there is one column per page
pdftotext library, program and test: Extracts text from PDF using poppler

PDF Viewer

manatee-pdfviewer library and program: PDF viewer extension for Manatee.

Performance

bench-graph library and test: Plot and compare benchmarks
bench-show library, program and tests: Show, plot and compare benchmark results
chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
criterion library, program and tests: Robust, reliable performance measurement and analysis
criterion-measurement library: Criterion measurement functionality and associated types
gauge tests and benchmark: small framework for performance measurement and analysis
hashtable-benchmark program: Benchmark of hash table implementations
perf-analysis library and program: analysis example using perf
tasty-bench library: Featherlight benchmark framework

Permutations

group-theory library: The theory of groups

Persistent

persistent-audit library, program and test: Parses a Persist Model file and produces Audit Models
persistent-parser library and test: Parse persistent model files

PersonalGrowth

Randometer program: Randomness intuition trainer

Phantom Types

tagged library: Haskell 98 phantom types to avoid unsafely passing dummy arguments
tagged-exception-core library: Reflect exceptions using phantom types.
tagged-th library: QuasiQuoter and Template Haskell splices for creating proxies at higher-kinds
tagged-transformer library: Monad transformer carrying an extra phantom type tag
type-hint library: Guide type inference with proxy values

Phishing

phizzle library and test: Library for checking if a given link is in a phishtank json file

PHP

tree-sitter-php library: Tree-sitter grammar/parser for PHP

Physics

bullet library: A wrapper for the Bullet physics engine.
chiphunk library and program: Haskell bindings for Chipmunk2D physics engine
detour-via-uom library and tests: JSON and CSV encoding for quantities.
dimensional library, tests and benchmark: Statically checked physical dimensions, using Type Families and Data Kinds.
dimensional-codata library: CODATA Recommended Physical Constants with Dimensional Types
dimensional-tf library: Statically checked physical dimensions, implemented using type families.
dsmc library: DSMC library for rarefied gas dynamics
dsmc-tools programs: DSMC toolkit for rarefied gas dynamics
fitsio library: A library for reading and writing data files in the FITS data format.
force-layout library: Simple force-directed layout
hamilton library and program: Physics on generalized coordinate systems using Hamiltonian Mechanics and AD
hepevt library: HEPEVT parser
HGamer3D-Bullet-Binding library: Windows Game Engine for the Haskell Programmer - Bullet Bindings
Hipmunk library: A Haskell binding for Chipmunk.
Hipmunk-Utils library and test: Useful functions for Hipmunk
HipmunkPlayground program: A playground for testing Hipmunk.
HODE library: Binding to libODE
jinquantities library, program and tests: Unit conversion and manipulation library.
lambdacube-bullet library: Example for combining LambdaCube and Bullet
learn-physics library and programs: Haskell code for learning physics
learn-physics-examples programs: examples for learn-physics
lha library: Data structures for the Les Houches Accord
lhe library: Parser and writer for Les-Houches event files
light library and test: a simple physics engine
orbits library and tests: Types and functions for Kepler orbits.
quantities library, program and tests: Unit conversion and manipulation library.
science-constants library: Mathematical/physical/chemical constants
science-constants-dimensional library: Mathematical/physical/chemical constants
shapes library, program and test: physics engine and other tools for 2D shapes
shapes-demo program: demos for the 'shapes' package
units-attoparsec library: Attoparsec parsers for the units package
units-defs library: Definitions for use with the units package
unittyped library and test: An extendable library for type-safe computations including units.

Picture

picedit library and program: simple image manipulation functions

Pinboard

pinboard-notes-backup program: Back up the notes you've saved to Pinboard

Pipes

ChannelT library: Generalized stream processors
dirstream library: Easily stream directory contents in constant memory
dsv library and test: DSV (delimiter-separated values)
pipe-enumerator library: A bidirectional bridge between pipes and iteratees
pipes library, test and benchmarks: Compositional pipelines
pipes-aeson library: Encode and decode JSON streams using Aeson and Pipes.
pipes-attoparsec library and test: Attoparsec and Pipes integration.
pipes-bgzf library: Blocked GZip
pipes-binary library and test: Encode and decode binary streams using the pipes and binary libraries.
pipes-break library and test: Pipes to group by any delimiter (such as lines with carriage returns)
pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
pipes-bytestring library: ByteString support for pipes
pipes-category library and test: Allows instances for Category, Arrow and ArrowChoice for Pipes.
pipes-cborg library and test: Encode and decode cborg streams using the pipes and cborg libraries.
pipes-cellular library: Pipes-based combinators for cellular data processing
pipes-cellular-csv library: Efficient pipes-based cellular CSV codec
pipes-cereal library: Encode and decode binary streams using the pipes and cereal libraries.
pipes-cereal-plus library: A streaming serialization library on top of "pipes" and "cereal-plus"
pipes-cliff library and programs: Streaming to and from subprocesses using Pipes
pipes-concurrency library and test: Concurrency for the pipes ecosystem
pipes-courier library: Pipes utilities for interfacing with the courier message-passing framework.
pipes-csv library and test: Fast, streaming csv parser
pipes-errors library: Integration between pipes and errors
pipes-extras library and test: Extra utilities for pipes
pipes-fastx library: Streaming parsers for Fasta and Fastq
pipes-fluid library and test: Reactively combines Producers so that a value is yielded as soon as possible.
pipes-group library and test: Group streams into substreams
pipes-http library: HTTP client with pipes interface
pipes-io library and test: Stateful IO streams based on pipes
pipes-key-value-csv library and test: Streaming processing of CSV files preceded by key-value pairs.
pipes-lines library and test: Pipes for grouping by lines with carriage returns.
pipes-misc library and test: Miscellaneous utilities for pipes, required by glazier-tutorial
pipes-network library: Use network sockets together with the pipes library.
pipes-network-tls library: TLS-secured network connections support for pipes.
pipes-network-ws library: WebSockets support for pipes.
pipes-p2p library: P2P network nodes with pipes
pipes-p2p-examples program: Examples using pipes-p2p
pipes-parse library: Parsing infrastructure for the pipes ecosystem
pipes-postgresql-simple library: Convert various postgresql-simple calls to work with pipes
pipes-protolude library, program and test: Alternate Prelude for the pipes ecosystem
pipes-rt library and program: A few pipes to control the timing of yields
pipes-safe library: Safety for the pipes ecosystem
pipes-shell library and test: Create proper Pipes from System.Process
pipes-text library: properly streaming text
pipes-wai library: A port of wai-conduit for the pipes ecosystem
pipes-zeromq4 library and programs: Pipes integration for ZeroMQ messaging
pipes-zlib library and test: Zlib and GZip compression and decompression for Pipes streams
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
servant-pipes library and test: Servant Stream support for pipes
streaming library: an elementary streaming prelude and general stream type.
streaming-bytestring library and test: Fast, effectful byte streams.
streaming-utils library: http, attoparsec, pipes and other utilities for the streaming libraries

PL/SQL Tools

PlslTools program: So far just a lint like program for PL/SQL. Diff and refactoring tools are planned

Plaid

plaid library, program and test: Plaid.com api integration library

Planning

schedule-planner program: Find the ideal lesson layout

Plotting

easyplot library: A tiny plotting library, utilizes gnuplot for plotting.
machination library and test: Plot charts as unicode strings.

Plugin

loopbreaker library and test: inline self-recursive definitions
overloaded library and tests: Overloaded pragmas as a plugin
supermonad library and test: Plugin and base library to support supermonads in Haskell

Poker

general-games library and test: Library supporting simulation of a number of games

Politic

hjugement library and test: Majority Judgment.
hjugement-cli program: Majority Judgment and Helios-C command line tool
hjugement-protocol library, test and benchmark: A cryptographic protocol for the Majority Judgment.
htirage library and test: Equiprobable draw from publicly verifiable random data.

Polymorphism

control-dsl library and test: An alternative to monads in do-notation
do-notation-dsl library and test: An alternative to monads
prelude-extras library: Higher order versions of Prelude classes
syb-extras library: Higher order versions of the Scrap Your Boilerplate classes

Polysemy

polysemy-extra library: Extra Input and Output functions for polysemy..
polysemy-fskvstore library: Run a KVStore as a filesystem in polysemy.
polysemy-kvstore-jsonfile library: Run a KVStore as a single json file in polysemy.
polysemy-methodology library: Domain modelling algebra for polysemy
polysemy-path library: Polysemy versions of Path functions.
polysemy-plugin library and test: Disambiguate obvious uses of effects.
polysemy-RandomFu library and test: Experimental, RandomFu effect and interpreters for polysemy
polysemy-zoo library and test: Experimental, user-contributed effects and interpreters for polysemy

Polysemy Filesystem

polysemy-fs library: Low level filesystem operations for polysemy.

Polysemy Vinyl

polysemy-vinyl library: Functions for mapping vinyl records in polysemy.

Polysemy Vinyl Composite

polysemy-methodology-composite library: Functions for using polysemy-methodology with composite.

PostgreSQL

eventful-postgresql library and test: Postgres implementations for eventful
gargoyle-postgresql library, programs and test: Manage PostgreSQL servers with gargoyle
hasql library, tests and benchmark: An efficient PostgreSQL driver with a flexible mapping API
hasql-class library and test: Encodable and Decodable classes for hasql
hasql-cursor-query library and test: A declarative abstraction over PostgreSQL Cursor
hasql-cursor-transaction library: An abstraction for simultaneous fetching from multiple PostgreSQL cursors
hasql-notifications library, program and test: LISTEN/NOTIFY support for Hasql
hasql-optparse-applicative library: "optparse-applicative" parsers for "hasql"
hasql-pool library and test: A pool of connections for Hasql
hasql-th library: Template Haskell utilities for Hasql
hasql-transaction library and test: Composable abstraction over retryable transactions for Hasql
poseidon library and test: Simple extensible library to run SQL file against PostgreSQL database.
poseidon-postgis library and test: Extension of Poseidon library for Postgis (Spatial and Geographic objects for PostgreSQL)
postgres-websockets library, program and test: Middleware to map LISTEN/NOTIFY messages to Websockets
postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
postgresql-error-codes library: PostgreSQL error codes
postgresql-simple-named library and tests: Implementation of named parameters for `postgresql-simple` library
postgresql-syntax library and tests: PostgreSQL AST parsing and rendering
postgrest library, program and tests: REST API for any Postgres database
preql library, test and benchmark: safe PostgreSQL queries using Quasiquoters
psql-utils library: PostgreSQL Simple util tools.

Potoki

potoki-cereal library and test: Streaming serialization
potoki-conduit library and test: Integration of "potoki" and "conduit"
potoki-zlib library: Streaming ZLib decompression

Prelude

awesome-prelude library: A prelude which I can be happy with. Based on base-prelude.
base library: Basic libraries
base-prelude library: The most complete prelude formed solely from the "base" package
basic-prelude library: An enhanced core prelude; a common foundation for alternate preludes.
bizzlelude library: A lousy Prelude replacement by a lousy dude
bizzlelude-js library: A lousy Prelude replacement by a lousy dude
cafeteria-prelude library: Prelude subsets—take only what you want!
chassis library: Prelude with algebraic constructs and polykinds on.
chorale library and test: A module containing basic functions that the prelude does not offer
chorale-geo library and test: A module containing basic geo functions
classy-prelude library and test: A typeclass-based Prelude.
classy-prelude-conduit library and test: classy-prelude together with conduit functions
cronus library: Another bloated standard library
definitive-base library: The base modules of the Definitive framework.
freelude library and test: A generalisation of the Category->Functor->Applicative->Monad hierarchy and more
haskell2010 library: Compatibility with Haskell 2010
haskell2020 library: Haskell 2020[draft] Standard Library
haskell98 library: Compatibility with Haskell 98
heart-app library: An opinionated app prelude and framework in the UnliftIO style
heart-core library: An opinionated library prelude in the UnliftIO style
humble-prelude library: Redefinition-free prelude alternative
hydrogen library and test: An alternate Prelude
interlude-l library: Prelude replacement based on protolude
intro library and test: Safe and minimal prelude
intro-prelude library and test: Intro reexported as Prelude
introduction library: A prelude for safe new projects
liblawless library and test: Prelude based on protolude for GHC 8 and beyond.
libmolude library and test: Prelude based on protolude for GHC 8 and beyond.
lifted-protolude library: A sensible set of defaults for writing lifted custom Preludes.
linear-base library, tests and benchmark: Standard library for linear types.
microbase library: A minimal base to work around GHC bugs.
mismi-p library: A commmon prelude for the mismi project.
morley-prelude library: A custom prelude used in Morley
mprelude library and test: A minimalish prelude.
mtl-prelude library: Reexports of most definitions from "mtl" and "transformers"
overture library, test and benchmark: An alternative to some of the Prelude.
papa library: Reasonable default import
papa-base library: Prelude with only useful functions
papa-base-export library: Prelude with only useful functions
papa-base-implement library: Useful base functions reimplemented
papa-bifunctors library: Prelude with only useful functions
papa-bifunctors-export library: export useful functions from `bifunctors`.
papa-bifunctors-implement library: useful `bifunctors` functions reimplemented
papa-export library and test: Reasonable default import
papa-implement library and test: Reasonable default import
papa-include library and test: Third party libraries
papa-lens library: Prelude with only useful functions
papa-lens-export library: export useful functions from `lens`.
papa-lens-implement library: useful `lens` functions reimplemented
papa-prelude library and test: Prelude with only useful functions
papa-prelude-core library and test: Prelude with only useful functions
papa-prelude-lens library and test: Prelude with only useful functions
papa-prelude-semigroupoids library and test: Prelude with only useful functions
papa-prelude-semigroups library and test: Prelude with only useful functions
papa-semigroupoids library: Prelude with only useful functions
papa-semigroupoids-export library: export useful functions from `semigroupoids`.
papa-semigroupoids-implement library: useful `semigroupoids` functions reimplemented
papa-x library: Prelude with only useful functions
papa-x-export library: export useful functions.
papa-x-implement library: useful functions reimplemented
planet-mitchell library: Planet Mitchell
planet-mitchell-test library: Planet Mitchell
preamble library: Yet another prelude.
precursor library and test: Prelude replacement
pregame library: Prelude for applications
preliminaries library: A larger alternative to the Prelude.
Prelude library: A Prelude module replacement
prelude-compat library: Provide Prelude and Data.List with fixed content across GHC versions
prelude-generalize library: Another kind of alternate Prelude file
prelude-prime library: A slightly better (but conservative) Prelude
prelude-safeenum library: A redefinition of the Prelude's Enum class in order to render it safe.
prelude2010 library: Provide Prelude with fixed content across GHC versions
preludeplus library: Generalizes List functions and replaces partials with NonEmpty equivalents.
prim library: An ergonomic but conservative interface to ghc-prim
prolude library: ITProTV's custom prelude
protolude library and program: A small prelude.
protolude-lifted library: Protolude with lifted-base and lifted-async.
psi library: Yet another custom Prelude.
relude library, tests and benchmark: Safe, performant, user-friendly and lightweight Haskell Standard Library
rfc-prelude library: The Prelude from the Robert Fischer Commons.
rfc-servant library: The Servant extensions from the Robert Fischer Commons.
SimpleH library: A light, clean and powerful Haskell utility library
spiros library, program and test: Spiros Boosalis's Custom Prelude
std library: TBA
techlab library: Bleeding edge prelude
universum library, tests and benchmark: Custom prelude used in Serokell
yap library: yet another prelude - a simplistic refactoring with algebraic classes

Preprocessor

hampp program: Haskell macro preprocessor
record-preprocessor library, program and benchmark: Compiler preprocessor introducing a syntactic extension for anonymous records
record-syntax library, tests and benchmark: A library for parsing and processing the Haskell syntax sprinkled with anonymous records

Presentation

yeamer library, programs and test: Yesod-based server for interactive presentation slides

Pretty Printer

aeson-pretty library and program: JSON pretty-printing library and command-line tool.
bit-array library and test: A bit array (aka bitset, bitmap, bit vector) API for numeric types
data-tree-print library: Print Data instances as a nested tree
egison-pattern-src library and test: Manipulating Egison patterns: abstract syntax, parser, and pretty-printer
egison-pattern-src-haskell-mode library and test: Parser and pretty printer for Egison pattern expressions in Haskell source code
egison-pattern-src-th-mode library and test: Parser and pretty printer for Egison pattern expressions to use with TH
errata library, program and test: Source code error pretty printing
GenericPretty library: A generic, derivable, haskell pretty printer.
hyper library: Display class for the HyperHaskell graphical Haskell interpreter
hyper-extra library: Display instances for the HyperHaskell graphical Haskell interpreter
language-ats library, test and benchmark: Parser and pretty-printer for ATS.
layout library: Turn values into pretty text or markup
pattern-arrows library: Arrows for Pretty Printing
PPrinter library: A generic derivable Haskell pretty printer
pretty-loc library: Tracking and highlighting of locations in source files
printcess library and test: Pretty printing with indentation, mixfix operators, and automatic line breaks.
repr-tree-syb library: Tree representation and pretty-printing of data structures based on SYB
text-generic-pretty library and test: A generic, derivable, haskell pretty printer.
tptp library and tests: Parser and pretty printer for the TPTP language
trifecta library and test: A modern parser combinator library with convenient diagnostics
xhtml library: An XHTML combinator library

Pretty-printing

wembley program: Pretty-printing of codebases

Primitive

contiguous library, tests and benchmark: Unified interface for primitive arrays
primitive-extras library and test: Extras for the "primitive" library

Process Manager

manatee-processmanager library and program: Process manager extension for Manatee.

Productivity

LiterateMarkdown library, program and test: Converter to convert from .lhs to .md and vice versa.

Profiling

edentv program: A Tool to Visualize Parallel Functional Program Executions
freer-simple-profiling library and test: Automatic profling of freer-simple programs
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-analyze program: Analyze and visualize event logs
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-prof-aeson library and test: Parser for GHC's JSON profiling output.
ghc-prof-aeson-flamegraph program: Turn GHC `-pj` profiling output into FlameGraph format.
hp2any-core library: Heap profiling helper library
hp2any-graph programs: ...
hp2any-manager program: A utility to visualise and compare heap profiles.
hp2html program: A tool for converting GHC heap-profiles to HTML.
hw-diagnostics library and test: Diagnostics library
linux-perf library and programs: Read files generated by perf on Linux
NoSlow programs: Microbenchmarks for various array libraries
prof2pretty programs: generate pretty source from time/allocation profiles
profiteur program: Treemap visualiser for GHC prof files
stackcollapse-ghc program and test: Program to fold GHC prof files into flamegraph input
threadscope program: A graphical tool for profiling parallel Haskell programs.

Profunctors

indexed-profunctors library: Utilities for indexed profunctors
profunctor-arrows library: Profunctor arrows
profunctor-misc library: Profunctor miscellany
profunctor-optics library and program: A compact optics library compatible with the typeclasses in profunctors.

Program

asset-bundle library: A build-time Cabal library that bundles executables with assets
backstop library, program and test: Backstop a target directory by source directories
macrm library, program and test: Alternative rm command for macOS that remove files/dirs to the system trash
pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.
scidb-hquery library and program: Haskell query for SciDB via shim
tensor-safe library and program: Create valid deep neural network architectures

Program Transformation

hfusion library: A library for fusing a subset of Haskell programs.
optimusprime program: A supercompiler for f-lite

Project

box library, programs and test: boxes
box-csv library and test: See readme.md
box-socket library, program and test: Box websockets
chart-svg-various library, program and test: See readme.md
ephemeral library and test: See readme.md
hcount program: Haskell name counts.
mealy library and test: See readme.md
numhask-array library and test: Multi-dimensional array interface for numhask.
numhask-free library and test: numerical free algebras
numhask-histogram library and test: See readme.md
numhask-range library and test: Numbers that are range representations
online library and test: See readme.md
online-csv library and test: See readme.md
perf library and test: Low-level run time measurement.
yam-app library: Yam App
yam-config library: Yam Configuation
yam-job library
yam-logger library: Yam Logger
yam-transaction library: Yam transaction
yam-transaction-odbc library
yam-transaction-postgresql library
yam-web library and program: Yam Web

Project Management

lentil program and test: frugal issue tracker
toodles library, program and test: Manage the TODO entries in your code

Prompt

fortytwo library, program and tests: Interactive terminal prompt

Propagators

mad-props library and program: Monadic DSL for building constraint solvers using basic propagators.

Proto

sc2-proto library: A protocol buffer model for the Starcraft II bot API

Protocol

fixhs library and program: FIX (co)parser
haskell-lsp-client library and program: A haskell package to build your own Language Server client.
hoauth library: A Haskell implementation of OAuth 1.0a protocol.
protocol library: Model distributed system as type-level multi-party protocol
remotion library and test: A library for client-server applications based on custom protocols
ron library and benchmark: RON
ron-rdt library: Replicated Data Types (RON-RDT)
ron-schema library: RON-Schema
ron-storage library: RON Storage
salvia-protocol library: Salvia webserver protocol suite supporting URI, HTTP, Cookie and MIME.
symantic-http library: Symantic combinators for deriving clients or a server from an HTTP API
symantic-http-client library: symantic-http applied to the derivation of HTTP clients
symantic-http-demo library and programs: Demo for symantic-http and its companion libraries
symantic-http-pipes library: Streaming support through pipes for symantic-http
symantic-http-server library: symantic-http applied to the derivation of HTTP servers
symantic-http-test test: Test symantic-http and its companion libraries

Protocols

bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

Proxies

ChannelT library: Generalized stream processors

PSP

stripeapi library: Stripe-Library

Ptr

ptr library and test: Abstractions for operations on pointers

Pugs

HsParrot library: Haskell integration with Parrot virtual machine
HsPerl5 library: Haskell interface to embedded Perl 5 interpreter
HsSyck library: Fast, lightweight YAML loader and dumper
MetaObject library: A meta-object system for Haskell based on Perl 6
Pugs program: A Perl 6 Implementation
pugs-compat library: Portable Haskell/POSIX layer for Pugs
pugs-DrIFT library and program: DrIFT with pugs-specific rules.
stringtable-atom library: Memoize Strings as Atoms for fast comparison and sorting, with maps and sets

Pup-Events

Pup-Events library and program: A networked event handling framework for hooking into other programs.
Pup-Events-Client library: A networked event handling framework for hooking into other programs.
Pup-Events-Demo programs: A networked event handling framework for hooking into other programs.
Pup-Events-PQueue library: A networked event handling framework for hooking into other programs.
Pup-Events-Server library: A networked event handling framework for hooking into other programs.

PureScript

hs2ps library and test: Translate Haskell types to PureScript
psc-ide library, programs and test: Language support for the PureScript programming language

PVP

policeman library, program and test: Haskell PVP version adviser

Python

tree-sitter-python library: Tree-sitter grammar/parser for Python

QL

tree-sitter-ql library: Tree-sitter grammar/parser for QL

QR

qr-imager library and test: Library to generate images.

QualifiedDo

eio library and program: IO with Exceptions tracked on the type-level

Quality

krank library, program and test: Krank checks your code source comments for important markers

Quantum

HABQT library, program and test: Hierarchical adaptive Bayesian quantum tomography for quantum bits
newsynth library and program: Exact and approximate synthesis of quantum circuits
QIO library: The Quantum IO Monad is a library for defining quantum computations in Haskell

QuasiQuotes

char-qq library: Quasiquoters for characters and codepoints
dump library and test: Dumps the names and values of expressions to ease debugging.
neat-interpolation library and test: A quasiquoter for neat and simple multiline text interpolation
numeric-qq library and test: Quasi-quoters for numbers of different bases
time-qq library and test: Quasi-quoter for UTCTime times
yasi library and test: Yet another string interpolator

QuickCheck

quickcheck-regex library: Generate regex-constrained strings for QuickCheck
quickcheck-relaxng library: Generate RelaxNG-constrained XML documents for QuickCheck
tasty-quickcheck-laws library, program and test: Pre-built tasty trees for checking lawful class properties using QuickCheck

Quipper

quipper library: Meta-package for Quipper.
quipper-algorithms library and programs: A set of algorithms implemented in Quipper.
quipper-all library: Meta-package for Quipper.
quipper-cabal library: Some functions to aid in the creation of Cabal packages for Quipper.
quipper-demos library and programs: Miscellaneous code snippets that illustrate various Quipper features.
quipper-language library and programs: Quipper, an embedded functional programming language for quantum computation.
quipper-libraries library and test: The standard libraries for Quipper.
quipper-tools library and programs: Miscellaneous stand-alone tools for Quipper
quipper-utils library: Utility libraries for Quipper.

Qux

language-qux library: Utilities for working with the Qux language
qux program: Command line binary for working with the Qux language

Raaz

raaz library, program, tests and benchmarks: The raaz cryptographic library.

Rabbitmq

amqp-streamly library and test: A simple streamly wrapper for amqp

Radio

si-clock library: An interface to the Silicon Labs Si5351 clock chip

RAKE

rake library: Rapid Automatic Keyword Extraction (RAKE)

Random

AC-Random library: A pure Haskell PRNG.
boltzmann-samplers library, test and benchmark: Uniform random generators
boots-app library and program: Factory for quickly building an application
choose library: Choose random elements from a stream.
fakedata library, test and benchmark: Library for producing fake data
fakedata-quickcheck library and test: Fake a -> Gen a
freer-simple-random library and test: Random number generators using freer-simple
mwc-probability-transition library and test: A Markov stochastic transition operator with logging
pcgen library, test and benchmark: A fast, pseudorandom number generator.
perfect-vector-shuffle library, program and test: Library for performing vector shuffles
rand-vars library: Random variable library, with Functor, Applicative and Monad instances.
rando library and test: Easy-to-use randomness for livecoding
random-class library: Class of random value generation
Random123 library, test and benchmark: Haskell port of Random123 library
rng-utils library, test and benchmark: RNG within an IORef for convenient concurrent use
sfmt library: SIMD-oriented Fast Mersenne Twister(SFMT) binding.
splitmix library, tests and benchmarks: Fast Splittable PRNG
tf-random library: High-quality splittable pseudorandom number generator
threefish library: The Threefish block cipher and the Skein hash function for Haskell.
vector-shuffling library: Algorithms for vector shuffling

Raspberrypi

mcpi library and programs: Connect to MineCraft running on a Raspberry PI.
pi-lcd library and programs: Control an Adafruit character LCD and keypad kit on a Raspberry Pi
wiringPi library and programs: Access GPIO pins on Raspberry Pi via wiringPi library

Raw

crc32c library and test: Haskell bindings for crc32c
odpic-raw library and test: Oracle Database Bindings

RDF

rdf4h library, program, test and benchmark: A library for RDF processing in Haskell

Reactive

definitive-reactive library: A simple Reactive library.
midair library: Hot-swappable FRP
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize

Reactivity

Animas library: Updated version of Yampa: a library for programming hybrid systems.
bot library: bots for functional reactive programming
Dflow library and test: Processing Real-time event streams
dow program: Dungeons of Wor
dunai library and tests: Generalised reactive framework supporting classic, arrowized and monadic FRP.
dunai-core library: Generalised reactive framework supporting classic, ...
elerea library: A minimalistic FRP library
elerea-examples programs: Example applications for Elerea
grapefruit-examples library: Examples using the Grapefruit library
grapefruit-frp library: Functional Reactive Programming core
grapefruit-records library: A record system for Functional Reactive Programming
grapefruit-ui library: Declarative user interface programming
grapefruit-ui-gtk library: GTK+-based backend for declarative user interface programming
haskanoid program: A breakout game written in Yampa using SDL
io-reactive library and program: An API for generating TIMBER style reactive objects.
machinecell library and tests: Arrow based stream transducers
midair library: Hot-swappable FRP
reaction-logic library and program: pluggable pure logic serializable reactor
reactive : Push-pull functional reactive programming
reactive-banana-automation library and test: home (etc) automation using reactive-banana
reactive-haskell library: minimal fork of io-reactive
reactivity : An alternate implementation of push-pull FRP.
reenact library: A reimplementation of the Reactive library.
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
resumable-exceptions library: A monad transformer for resumable exceptions
simple-affine-space library and tests: A simple library for affine and vector spaces.
streamly library, programs and tests: Beautiful Streaming, Concurrent and Reactive Composition
wxFruit library and program: An implementation of Fruit using wxHaskell.
Yampa library, programs and tests: Elegant Functional Reactive Programming Language for Hybrid Systems
Yampa-core library, programs and tests: Library for programming hybrid systems.
YFrob library: Yampa-based library for programming robots

Record

envy-extensible library and tests: Provides FromEnv in envy instance for Record of extensible.

Records

audiovisual library: A battery-included audiovisual framework
bookkeeper library, program, tests and benchmark: Anonymous records and overloaded labels
bookkeeper-permissions library: Permissions for bookkeeper records
composite-aeson library and test: JSON for Vinyl records
composite-aeson-path library: Formatting data for the path library.
composite-aeson-refined library: composite-aeson support for Refined from the refined package
composite-base library and test: Shared utilities for composite-* packages.
composite-binary library: Orphan binary instances.
composite-ekg library: EKG Metrics for Vinyl records
composite-hashable library: Orphan hashable instances.
composite-opaleye library and test: Opaleye SQL for Vinyl records
composite-swagger library and test: Swagger for Vinyl records
data-diverse library, test and benchmark: Extensible records and polymorphic variants.
data-diverse-lens library and test: Isos & Lens for Data.Diverse.Many and Prisms for Data.Diverse.Which
docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
extensible library and test: Extensible, efficient, optics-friendly data types and effects
generic-labels library and test: Generically extract and replace collections of record fields
generic-lens library and tests: Generically derive traversals, lenses and prisms.
generic-lens-core library: Generically derive traversals, lenses and prisms.
generic-lens-labels library: GHC.OverloadedLabels.IsLabel instance for lenses from ghc-generics
generic-optics library and tests: Generically derive traversals, lenses and prisms.
generic-records library: Magic record operations using generics
microgroove library: Array-backed extensible records
named-records library: Flexible records with named fields.
rawr library, tests and benchmark: Anonymous extensible records
record library: Anonymous records
record-aeson library and test: Instances of "aeson" classes for the "record" types
record-preprocessor library, program and benchmark: Compiler preprocessor introducing a syntactic extension for anonymous records
record-syntax library, tests and benchmark: A library for parsing and processing the Haskell syntax sprinkled with anonymous records
records library: A flexible record system
ruin library and test: Pliable records
superrecord library, test and benchmark: Supercharged anonymous records
vinyl library, tests and benchmarks: Extensible Records
wakame library and tests: Functions to manipulate records

Recursion

metamorphic library: metamorphisms: ana . cata or understanding folds and unfolds
micro-recursion-schemes library and test: Simple recursion schemes
monadic-recursion-schemes library and test: Recursion Schemes for Monadic version.
recursion : A recursion schemes library for Haskell.
recursion-schemes library and test: Representing common recursion patterns as higher-order functions
tie-knot library: "Ties the knot" on a given set of structures that reference each other by keys.
yaya library: Total recursion schemes.
yaya-hedgehog library: Hedgehog testing support for the Yaya recursion scheme library.
yaya-test test: Test suites for `yaya`.
yaya-unsafe library: Non-total extensions to the Yaya recursion scheme library.
yaya-unsafe-test test: Test suites for `yaya-unsafe`.

Redis

rfc-redis library: The Redis extensions from the Robert Fischer Commons.

Refactoring

HaRe program and test: the Haskell Refactorer.
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
importify library, programs and test: Tool for haskell imports refactoring
module-management library, program and test: Clean up module imports, split and merge modules
smuggler library, program and test: GHC Source Plugin that helps to manage imports
smuggler2 library and test: GHC Source Plugin that helps to minimise imports and generate explicit exports

Reflection

data-reify library, programs and test: Reify a recursive data structure into an explicit graph.
data-treify library: Reify a recursive data structure into an explicit graph.
familiar-reflection library: Reifies arbitrary terms into types that can be reflected back into terms
global-variables library: Namespaced, global, and top-level mutable variables without unsafePerformIO.
hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
model library and tests: Derive a model of a data type using Generics
reflection library and test: Reifies arbitrary terms into types that can be reflected back into terms
typehash library: Create a unique hash value for a type.
yoko library: Generic Programming with Disbanded Data Types
zm library and tests: Language independent, reproducible, absolute types

Reflex

reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dynamic-containers library and test: various dynamic containers for Reflex
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
reflex-test-host library and test: reflex host methods for testing without external events

Regex

lens-regex-pcre library, test and benchmark: A lensy interface to regular expressions
quickcheck-regex library: Generate regex-constrained strings for QuickCheck
re2 library and test: Bindings to the re2 regular expression library
regex-do library and test: PCRE wrapper
regex-genex library and program: From a regex, generate all possible strings it can match
regexchar library, program and test: A POSIX, extended regex-engine.
regexdot library: A polymorphic, POSIX, extended regex-engine.

Relational Algebra

project-m36 library, programs, tests and benchmarks: Relational Algebra Engine

Relaxng

quickcheck-relaxng library: Generate RelaxNG-constrained XML documents for QuickCheck

Relude

qualified-imports-plugin library and test: GHC plugin to automatically insert qualified imports

REPL

interact library and test: instantly create REPL from any function
repl-toolkit library: Toolkit for quickly whipping up config files and command-line interfaces.

Resources

acquire library: Abstraction over management of resources

Reverse Engineering

dewdrop library: Find gadgets for return-oriented programming on x86
hdis86 library: Interface to the udis86 disassembler for x86 and x86-64 / AMD64
rz-pipe library and program: Pipe interface for Rizin
tttool program: Working with files for the Tiptoi® pen

Rewriting

rewrite-inspector library and programs: Inspection of rewriting steps

RFC

idna library: Implements IDNA (RFC 3490).

Robotics

HsWebots library and test: Webots bindings for Haskell
NXT library, programs and test: A Haskell interface to Lego Mindstorms NXT
pcd-loader library, program and test: PCD file loader.
RMP library and programs: Binding to code that controls a Segway RMP
roshask library, program and tests: Haskell support for the ROS robotics framework.
rosmsg library: ROS message parser, render, TH
rosmsg-bin programs: ROS message management tools
rospkg library, program and test: ROS package system information

Roles

coerce-role library and test: Having trouble deriving instances because of type roles? Solve it here!

RPC

capnp library, program and test: Cap'n Proto for Haskell
curryer-rpc library, programs, test and benchmark: Fast, Haskell RPC

RSS

manatee-reader library and program: Feed reader extension for Manatee.
rss library: A library for generating RSS 2.0 feeds.
ureader program: Minimalistic CLI RSS reader.

RSS/Atom Reader

manatee-reader library and program: Feed reader extension for Manatee.

Ruby

tree-sitter-ruby library: Tree-sitter grammar/parser for Ruby

Rust

tree-sitter-rust library: Tree-sitter grammar/parser for Rust

Saas

hPushover library: Pushover.net API functions
micro-gateway library and program: A Micro service gateway.

Safe

gdp library and program: Reason about invariants and preconditions with ghosts of departed proofs.
lawful library: Assert the lawfulness of your typeclass instances.
listsafe library: Safe wrappers for partial list functions, supporting MonadThrow.
membrain library and tests: Type-safe memory units
safe-numeric library and test: Safe arithmetic operations.

Sample Code

hid-examples library, programs, tests and benchmarks: Examples to accompany the book "Haskell in Depth"
parconc-examples programs: Examples to accompany the book "Parallel and Concurrent Programming in Haskell"

Scene

yampa-sdl2 library and test: Yampa and SDL2 made easy

Schedule

schedule library and tests: Pure deterministic scheduled computations

Scheduling

fuzzy-timings library and test: ...
hcron library: A simple job scheduler, which just runs some IO action at a given time.
turni program: shifts scheduling tool

Schema

hschema library: Describe schemas for your Haskell data types.
hschema-aeson library and test: Describe schemas for your Haskell data types.
hschema-prettyprinter library: Describe schemas for your Haskell data types.
hschema-quickcheck library: Describe schemas for your Haskell data types.

Science

arpack library and test: Solve large scale eigenvalue problems
astro library and test: Amateur astronomical computations
atmos library and test: 1976 US Standard Atmosphere Model
atmos-dimensional library: dimensional wrapper on atmos package
atmos-dimensional-tf library: dimensional-tf wrapper on atmos package
dynobud library, programs and tests: your dynamic optimization buddy
fits-parse library and program: Parse FITS files
hfoil library and program: Hess-Smith panel code for inviscid 2-d airfoil analysis
igrf library: International Geomagnetic Reference Field
mwc-probability-transition library and test: A Markov stochastic transition operator with logging
physics library: dimensions, quantities and constants
science-constants library: Mathematical/physical/chemical constants
science-constants-dimensional library: Mathematical/physical/chemical constants
TBit library: Utilities for condensed matter physics tight binding calculations.

Scientific

quantum-random library, program and test: Retrieve, store and manage real quantum random data.

Scientific Simulation

mwc-probability-transition library and test: A Markov stochastic transition operator with logging
simgi program: stochastic simulation engine

Scotty

scotty-haxl library: Combine scotty and haxl
scotty-utils library: Scotty utils library

Screencast

osdkeys library and program: Show keys pressed with an on-screen display (Linux only)

Screensaver

TimePiece library and program: A simple tile-based digital clock screen saver

SCRIPT

SCRIPTWriter library and program: ESCRIPT: a human friendly language for programming Bitcoin scripts

Scripting

hscrtmpl program: Haskell shell script template
luachunk library: Library functions for reading and writing Lua chunks
luautils library and test: Helpers for Haskell integration with Lua
shell-conduit library and test: Write shell scripts with Conduit
timestamp-subprocess-lines program: Run a command and timestamp its stdout/stderr lines
web-output library and test: Library to present content to an user via their browser

SDR

si-clock library: An interface to the Silicon Labs Si5351 clock chip

Search

bloodhound library and test: Elasticsearch client library for Haskell
boolexpr library: Boolean expressions with various representations and search queries.
Condor library, program and test: Information retrieval library
condor library, program and test: Information retrieval library
full-text-search library, program and test: In-memory full text search engine
infinite-search library: Exhaustively searchable infinite sets.
longshot library, program and test: Fast Brute-force search using parallelism
regex-do library and test: PCRE wrapper
regexdot library: A polymorphic, POSIX, extended regex-engine.
search library and test: Infinite search in finite time with Hilbert's epsilon
sphinx library: Haskell bindings to the Sphinx full-text searching daemon.
sphinx-cli program: Sphinx CLI and demo of Haskell Sphinx library
stringsearch library: Fast searching, splitting and replacing of ByteStrings

Security

bindings-sipc library and programs: Low level bindings to SIPC.
Capabilities library: Separate and contain effects of IO monad.
credentials library and test: Secure Credentials Storage and Distribution
credentials-cli program: Secure Credentials Administration
dclabel library, test and benchmark: This packge is deprecated. See the the "LIO.DCLabel" in the "lio" package.
dclabel-eci11 library: The Disjunction Category Label Format.
dewdrop library: Find gadgets for return-oriented programming on x86
faceted library: Faceted computation for dynamic information flow security
flowlocks-framework library and test: Generalized Flow Locks Framework
GoogleSB library: Interface to Google Safe Browsing API
gothic library: A Haskell Vault KVv2 secret engine client
hpg program: a simple password generator
hsaml2 library and test: OASIS Security Assertion Markup Language (SAML) V2.0
jail library: Jailed IO monad.
liboath-hs library, program and test: Bindings to liboath
lio library: Labeled IO Information Flow Control Library
lio-eci11 library: Labeled IO library
lio-fs library: Labeled File System interface for LIO
lmonad library and test: LMonad is an Information Flow Control (IFC) framework for Haskell applications.
lmonad-yesod library: LMonad for Yesod integrates LMonad's IFC with Yesod web applications.
mac library: Static Mandatory Access Control in Haskell
openssh-protocol library and test: Haskell implementation of openssh protocol primitives.
otp-authenticator library and program: OTP Authenticator (a la google) command line client
paphragen program: A passphrase generator.
passman library, program and test: a simple password manager
pi-hoole library, programs and test: Lightweight access control solution for the pijul vcs
planb-token-introspection library and test: Token Introspection for PlanB
rz-pipe library and program: Pipe interface for Rizin
safe-access library: A simple environment to control access to data
scyther-proof program: Automatic generation of Isabelle/HOL correctness proofs for security protocols.
seclib library: A simple library for static information-flow security in Haskell
secrm program: Example of writing "secure" file removal in Haskell rather than C.
sme library: A library for Secure Multi-Execution in Haskell
smith-cli program: Command line tool for <https://smith.st/ Smith>.
smith-client library and tests: API client for <https://smith.st/ Smith>.
TransformeR library, program and test: eDSL in R for Safe Variable Transformarion
wai-rate-limit library: Rate limiting as WAI middleware
wai-rate-limit-redis library and test: Redis backend for rate limiting as WAI middleware
wai-saml2 library: SAML2 assertion validation as WAI middleware

Selective

validation-selective library and tests: Lighweight pure data validation based on Applicative and Selective functors

Selenium

webdriver library: a Haskell client for the Selenium WebDriver protocol

Semantic Web

hasparql-client library: This package enables to write SPARQL queries to remote endpoints.
swish library, programs and tests: A semantic web toolkit.
yaml2owl program: Generate OWL schema from YAML syntax, and an RDFa template.

Semigroups

reducers library: Semigroups, specialized containers and a general map/reduce framework

Serialization

aeson-deriving library and test: data types for compositional, type-directed serialization
arith-encode library and test: A practical arithmetic encoding (aka Godel numbering) library.
beamable library, test and benchmark: Generic serializer/deserializer with compact representation
bencodex library and tests: Bencodex reader/writer for Haskell
binary-typed library, tests and benchmarks: Type-safe binary serialization
bits library: Various bit twiddling and bitwise serialization primitives
BitSyntax library: A module to aid in the (de)serialisation of binary data
bytes library: Sharing code for serialization between binary and cereal
bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
capnp library, program and test: Cap'n Proto for Haskell
cereal-plus library and test: An extended serialization library on top of "cereal"
columbia library: Enhanced serialization using seeking.
construct library and tests: Haskell version of the Construct library for easy specification of file formats
enumeration library and test: A practical API for building recursive enumeration procedures and enumerating datatypes.
flat library and tests: Principled and efficient bit-oriented binary serialization.
flatbuffers library, test and benchmark: Haskell implementation of the FlatBuffers protocol.
imprint library and test: Serialization of arbitrary Haskell expressions
massiv-persist library and tests: Compatibility of 'massiv' with 'persist'
packman library and tests: Serialization library for GHC
pgp-wordlist library and tests: Translate between binary data and a human-readable collection of words.
pipes-cereal-plus library: A streaming serialization library on top of "pipes" and "cereal-plus"
store library, test and benchmarks: Fast binary serialization
store-core library: Fast and lightweight binary serialization
store-streaming library and test: Streaming interfaces for `store`
tagged-binary library: Provides tools for serializing data tagged with type information.
winery library, program, test and benchmark: A compact, well-typed seralisation format for Haskell values

Servant

boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
http-rfc7807 library and test: RFC7807 style response messages
my-test-docs library and tests: spam
servant library and test: A family of combinators for defining webservices APIs
servant-auth library: Authentication combinators for servant
servant-auth-client library and test: servant-client/servant-auth compatibility
servant-auth-docs library and tests: servant-docs/servant-auth compatibility
servant-auth-server library and tests: servant-server/servant-auth compatibility
servant-auth-swagger library and test: servant-swagger/servant-auth compatibility
servant-auth-wordpress library: Authenticate Routes Using Wordpress Cookies
servant-avro library and test: Avro content type for Servant
servant-blaze library and test: Blaze-html support for servant
servant-cassava library and test: Servant CSV content-type for cassava
servant-client library and tests: Automatic derivation of querying functions for servant
servant-client-core library and test: Core functionality and class for client function generation for servant APIs
servant-client-js library: A servant client for frontend JavaScript
servant-conduit library and test: Servant Stream support for conduit.
servant-dhall library and test: Servant Dhall content-type
servant-docs library, program and test: generate API docs for your servant webservice
servant-ekg library, test and benchmark: Helpers for using ekg with servant
servant-errors library and test: Servant Errors wai-middlware
servant-event-stream library and test: Servant support for Server-Sent events
servant-fiat-content library: Fiat content types
servant-foreign library and test: Helpers for generating clients for servant APIs in any programming language
servant-http-streams library and tests: Automatic derivation of querying functions for servant
servant-js library, program and test: Automatically derive javascript functions to query servant webservices.
servant-lucid library and test: Servant support for lucid
servant-machines library and test: Servant Stream support for machines
servant-mock library, program and test: Derive a mock server for free from your servant API types
servant-multipart library, program and test: multipart/form-data (e.g file upload) support for servant
servant-nix library and test: Servant Nix content-type
servant-openapi3 library and tests: Generate a Swagger/OpenAPI/OAS 3.0 specification for your servant API.
servant-pandoc library: Use Pandoc to render servant API documentation
servant-pipes library and test: Servant Stream support for pipes
servant-polysemy library and programs: Utilities for using servant in a polysemy stack
servant-rawm library: Embed a raw 'Application' in a Servant API
servant-rawm-client library: The client implementation of servant-rawm.
servant-rawm-docs library: Documentation generator for 'RawM' endpoints.
servant-rawm-server library: The server implementation of servant-rawm.
servant-ruby library and test: Generate a Ruby client from a Servant API with Net::HTTP.
servant-seo library and test: Generate Robots.txt and Sitemap.xml specification for your servant API.
servant-server library, program and test: A family of combinators for defining webservices APIs and serving them
servant-swagger library and tests: Generate a Swagger/OpenAPI/OAS 2.0 specification for your servant API.
servant-swagger-tags library: Swagger Tags for Servant
servant-swagger-ui library: Servant swagger ui
servant-swagger-ui-core library: Servant swagger ui core components
servant-swagger-ui-jensoleg library: Servant swagger ui: Jens-Ole Graulund theme
servant-swagger-ui-redoc library: Servant swagger ui: ReDoc theme
servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
servant-websockets library and programs: Small library providing WebSocket endpoints for servant.
servant-yaml library and test: Servant support for yaml
tonatona-servant library and tests: tonatona plugin for servant.

Serverless

azure-functions-worker library and test: Azure Functions Worker

Service

remotion library and test: A library for client-server applications based on custom protocols
twill library: Twilio API interaction
wobsurv library, program and test: A simple and highly performant HTTP file server

Services

antiope-athena library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-contract library: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-core library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-dynamodb library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-es library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-messages library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-optparse-applicative library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-s3 library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-shell library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-sns library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-sqs library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
antiope-swf library and test: Please see the README on Github at <https://github.com/arbor/antiope#readme>
arbor-monad-counter library and test: Counter library for submitting metrics to a backend such as datadog
arbor-postgres library: Convenience types and functions for postgresql-simple.
asif library, program and tests: Library for creating and querying segmented feeds
hw-kafka-avro library, program and test: Avro support for Kafka infrastructure
plivo library: Plivo API wrapper for Haskell

Set Theory

LargeCardinalHierarchy library: A transfinite cardinal arithmetic library including all known large cardinals

Setup

autopack library: Custom Setup to automate package modules discovery
chs-cabal library: Cabal with c2hs dependencies

Shake

shake library, program and test: Build system library, like Make, but more accurate dependencies.
shake-ats library: Utilities for building ATS projects with shake
shake-bindist library: Rules for binary distributions
shake-ext library: Helper functions for linting with shake
shake-futhark library: Dependency tracking for Futhark
shake-google-closure-compiler library: Shake rules for the Google closure compiler
shake-minify library: Shake Minify Rules
shake-minify-css library: Shake rules for CSS
shake-pack library: Shake File Pack Rule
shake-path library: path alternatives to shake functions
shake-plus library: Re-export of Shake using well-typed paths and ReaderT.
shake-plus-extended library: Experimental extensions to shake-plus

Shell

coquina library, program and test: Yet another shell monad.
hell library and program: A Haskell shell based on shell-conduit
Hish library and program
shellmet library, program and test: Out of the shell solution for scripting in Haskell

Si5351

si-clock library: An interface to the Silicon Labs Si5351 clock chip

Signatures

bzip-signature library: Backpack signature for BZip compression

Silk

rest-stringmap library: Maps with stringy keys that can be transcoded to JSON and XML.

Silly Tool

forest-fire library, program and test: Recursively delete CloudFormation stacks and their dependants

SIMD

hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
hw-simd library, tests and benchmark: SIMD library
hw-simd-cli library, program and test: SIMD library

Simple

character-cases library and test: Exposes subspecies types of Char. And naming cases.
flip-cmd program: e.g. `flip systemctl foo.service start` does `systemctl start foo.service`
hs-snowtify program: snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2:
random-names library: Expose Random and Arbitrary instances
snowtify program: snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2:
stack-type library: The basic stack type
zuramaru library, program and tests: A lisp processor, An inline-lisp, in Haskell

Simulation

aivika library: A multi-method simulation library
aivika-branches library: Nested discrete event simulation module for the Aivika library
aivika-distributed library: Parallel distributed discrete event simulation module for the Aivika library
aivika-experiment library: Simulation experiments for the Aivika library
aivika-experiment-cairo library: Cairo-based charting backend for the Aivika simulation library
aivika-experiment-chart library: Simulation experiments with charting for the Aivika library
aivika-experiment-diagrams library: Diagrams-based charting backend for the Aivika simulation library
aivika-gpss library: GPSS-like DSL for Aivika
aivika-lattice library: Nested discrete event simulation module for the Aivika library using lattice
aivika-realtime library: Soft real-time simulation module for the Aivika library
aivika-transformers library: Transformers for the Aivika simulation library
dominion library, program and test: A simulator for the board game Dominion.
epi-sim library and test: A library for simulating epidemics as birth-death processes.
hs-carbon library and test: A Haskell framework for parallel monte carlo simulations
hs-carbon-examples programs: Example Monte Carlo simulations implemented with Carbon
lambda-devs library, program and test: a Paralell-DEVS implementaion based on distributed-process
SoOSiM library: Abstract full system simulator
TORCS library and program: Bindings to the TORCS vehicle simulator.

Singletons

bin library: Bin: binary natural numbers.
fin library and test: Nat and Fin: peano naturals and finite numbers
ral library and benchmark: Random access lists
ral-lens library: Length-indexed random access lists: lens utilities.
ral-optics library: Length-indexed random access lists: optics utilities.

SMT

boolector library and tests: Haskell bindings for the Boolector SMT solver
Hsmtlib library: Haskell library for easy interaction with SMT-LIB 2 compliant solvers.
hz3 library, program and test: Bindings for the Z3 Theorem Prover
linearEqSolver library: Use SMT solvers to solve linear systems over integers and rationals
sbv library, tests and benchmarks: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
smt2-parser library and test: A Haskell parser for SMT-LIB version 2.6
smtLib library: A library for working with the SMTLIB format.
smtlib2 library: A type-safe interface to communicate with an SMT solver.
smtlib2-debug library: Dump the communication with an SMT solver for debugging purposes.
smtlib2-pipe library and test: A type-safe interface to communicate with an SMT solver.
smtlib2-quickcheck library: Helper functions to create SMTLib expressions in QuickCheck
smtlib2-timing library: Get timing informations for SMT queries
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
what4 library, program and tests: Solver-agnostic symbolic values support for issuing queries
z3 library, program and test: Bindings for the Z3 Theorem Prover

Snap

atlassian-connect-core library: Atlassian Connect snaplet for the Snap Framework and helper code.
heist library, test and benchmark: An Haskell template system supporting both HTML5 and XML.
hspec-snap library and test: A library for testing with Hspec and the Snap Web Framework
restful-snap library
ses-html-snaplet library: Snaplet for the ses-html package
snap library and test: Top-level package for the Snap Web Framework
snap-auth-cli program: Command-line tool to manage Snap AuthManager database
snap-core library and test: Snap: A Haskell Web Framework (core interfaces and types)
snap-extras library, program and test: A collection of useful helpers and utilities for Snap web applications.
snap-loader-dynamic library: Snap dynamic loader
snap-loader-static library: Snap static loader
snap-predicates library and test: Declarative routing for Snap.
snap-server library, programs, test and benchmark: A web server for the Snap Framework
snap-templates program: Scaffolding CLI for the Snap Framework
snap-testing library and test: A library for BDD-style testing with the Snap Web Framework
snap-utils library: Snap Framework utilities.
snap-web-routes library: Type safe URLs for Snap
snaplet-acid-state library: acid-state snaplet for Snap Framework
snaplet-actionlog library: Generic action log snaplet for the Snap Framework
snaplet-auth-acid library: Provides an Acid-State backend for the Auth Snaplet
snaplet-coffee library: CoffeeScript for Snap, auto-compilation and pre-compilation.
snaplet-fay library: Fay integration for Snap with request- and pre-compilation.
snaplet-haxl library: Snaplet for Facebook's Haxl
snaplet-mysql-simple library: mysql-simple snaplet for the Snap Framework
snaplet-persistent library: persistent snaplet for the Snap Framework
snaplet-postgresql-simple library and program: postgresql-simple snaplet for the Snap Framework
snaplet-postmark library: Postmark snaplet for the Snap Framework
snaplet-redis library and program: Redis support for Snap Framework
snaplet-redson library: CRUD for JSON data with Redis storage
snaplet-sass library: Sass integration for Snap with request- and pre-compilation.
snaplet-scoped-session library: Modularised session state for Snaplets, in a Snaplet
snaplet-ses-html library: Snaplet for the ses-html package
snaplet-sqlite-simple library and test: sqlite-simple snaplet for the Snap Framework
snaplet-stripe library: Stripe snaplet for the Snap Framework

Snaplet-fay

olwrapper library and program: An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay

Socket

socket-sctp library and tests: STCP socket extensions library.

Software

concurrent-st library: Concurrent Haskell in ST
dhcp-lease-parser library and test: Parse a DHCP lease file
primitive-sort library, tests and benchmark: Sort primitive arrays
teleshell library and test: Telnet client and other things

Software Defined Radio

rtlsdr library: Bindings to librtlsdr
sdr test and benchmark: A software defined radio library

Sorting

discrimination library, test and benchmarks: Fast generic linear-time sorting, joins and container construction.
gather library: An applicative for parsing unordered things, heterogenous sorting
sortee library and test: Generate string for sort key

Sound

al library: OpenAL 1.1 raw API.
algorithmic-composition-additional library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-basic library: Helps to create experimental music from a file (or its part) and a Ukrainian text.
algorithmic-composition-complex library: Helps to create more complex experimental music from a file (especially timbre).
algorithmic-composition-frequency-shift library: Helps to create experimental music. Uses SoX inside.
algorithmic-composition-overtones library: Some variants of the overtones functions to generate a timbre.
alsa library: Binding to the ALSA Library API.
alsa-core library: Binding to the ALSA Library API (Exceptions).
alsa-gui programs: Some simple interactive programs for sending MIDI control messages via ALSA
alsa-midi library and programs: Bindings for the ALSA sequencer API (MIDI stuff)
alsa-mixer library: Bindings to the ALSA simple mixer API.
alsa-pcm library and programs: Binding to the ALSA Library API (PCM audio).
alsa-pcm-tests programs: Tests for the ALSA audio signal library.
alsa-seq library and programs: Binding to the ALSA Library API (MIDI sequencer).
alsa-seq-tests programs: Tests for the ALSA sequencer library.
alure library: A Haskell binding for ALURE
ALUT library and programs: A binding for the OpenAL Utility Toolkit
audacity library and programs: Interchange with the Audacity sound signal editor
Bang library: A Drum Machine DSL for Haskell
bindings-fluidsynth library: Haskell FFI bindings for fluidsynth software synthesizer
bindings-portaudio library: Low-level bindings to portaudio library
bindings-sc3 library: Low-level bindings to the SuperCollider synthesis engine library.
conductive-base library: a library for live coding and real-time musical applications
conductive-clock library: a library for displaying musical time in a terminal-based clock
conductive-hsc3 library: a library with examples of using Conductive with hsc3
conductive-song library: a library of functions which are useful for composing music
conduit-audio library: Combinators to efficiently slice and dice audio streams
conduit-audio-lame library: conduit-audio interface to the LAME MP3 library
conduit-audio-samplerate library: conduit-audio interface to the libsamplerate resampling library
conduit-audio-sndfile library: conduit-audio interface to the libsndfile audio file library
csound-expression library: library to make electronic music
csound-expression-dynamic library: dynamic core for csound-expression library
csound-expression-opcodes library: opcodes for the library csound-expression
csound-expression-typed library: typed core for the library csound-expression
DirectSound library: Partial binding to the Microsoft DirectSound API.
djembe library and test: Hit drums with haskell
dobutokO-effects library: A library to deal with SoX effects and possibilities
dobutokO-frequency library: Helps to create experimental music. Working with frequencies and types.
dobutokO2 library and program: Helps to create experimental music from a file (or its part) and a Ukrainian text.
dobutokO3 library: Helps to create more complex experimental music from a file (especially timbre).
dobutokO4 library: Helps to create experimental music. Uses SoX inside.
dsp library, programs and test: Haskell Digital Signal Processing
dywapitchtrack library: Bindings to the dywapitchtrack pitch tracking library
EsounD library and program: Type-safe bindings to EsounD (ESD; Enlightened Sound Daemon)
Euterpea library: Library for computer music research and education
flaccuraterip program: Verify FLAC files ripped form CD using AccurateRip™
fluidsynth library: Haskell bindings to FluidSynth
FModExRaw library: The Haskell FModEx raw API.
free-v-bucks-generator-ps4-no-survey program: Spam
freesound library and test: Access the Freesound Project database
hamid library: Binding to the OS level Midi services (fork of system-midi).
haskell-player library, program and test: A terminal music player based on afplay
haskore library, programs and test: The Haskore Computer Music System
haskore-realtime library: Routines for realtime playback of Haskore songs
haskore-supercollider library and programs: Haskore back-end for SuperCollider
haskore-synthesizer library and program: Music rendering coded in Haskell
hbeat program: A simple step sequencer GUI.
hCsound library: interface to CSound API
hdf library: HDF: Uniform Rate Audio Signal Processing in Haskell
hemkay program: A module music mixer and player
hemkay-core library: A device independent module music mixer
hmeap library: Haskell Meapsoft Parser
hmeap-utils programs: Haskell Meapsoft Parser Utilities
hmp3 program: An ncurses mp3 player written in Haskell
hmp3-ng program: A 2019 fork of an ncurses mp3 player written in Haskell
hommage library: Haskell Offline Music Manipulation And Generation EDSL
hommage-ds library: DirectSound extension (Windows) for the Hommage sound library
honk library: Cross-platform interface to the PC speaker.
hosc library: Haskell Open Sound Control
hosc-json library: Haskell Open Sound Control JSON Serialisation
hosc-utils programs: Haskell Open Sound Control Utilities
hplaylist program: Application for managing playlist files on a music player
hsc3 library: Haskell SuperCollider
hsc3-auditor library: Haskell SuperCollider Auditor
hsc3-cairo library: haskell supercollider cairo drawing
hsc3-data library: haskell supercollider data
hsc3-db library: Haskell SuperCollider Unit Generator Database
hsc3-dot library: haskell supercollider graph drawing
hsc3-forth program: FORTH SUPERCOLLIDER
hsc3-graphs library and programs: Haskell SuperCollider Graphs
hsc3-lang library: Haskell SuperCollider Language
hsc3-lisp program: LISP SUPERCOLLIDER
hsc3-plot library: Haskell SuperCollider Plotting
hsc3-process library and programs: Create and control scsynth processes
hsc3-rec library: Haskell SuperCollider Record Variants
hsc3-rw library: hsc3 re-writing
hsc3-server library, programs and test: SuperCollider server resource management and synchronization.
hsc3-sf library: Haskell SuperCollider SoundFile
hsc3-sf-hsndfile library: Haskell SuperCollider SoundFile
hsc3-unsafe library: Unsafe Haskell SuperCollider
hsc3-utils library and programs: Haskell SuperCollider Utilities
hsdif library: Haskell SDIF
hsharc library: Haskell SHARC bindings
hsndfile library: Haskell bindings for libsndfile
hsndfile-storablevector library: Haskell bindings for libsndfile (Data.StorableVector interface)
hsndfile-vector library: Haskell bindings for libsndfile (Data.Vector interface)
HSoM library: Library for computer music education
HSoundFile library: Audio file reading/writing
hspear library: Haskell Spear Parser
htaglib library and test: Bindings to TagLib, audio meta-data library
htune program: harmonic analyser and tuner for musical instruments
hum library, program and test: A TUI MPD client, inspired by ncmpcpp
hXmixer program: A Gtk mixer GUI application for FreeBSD
idiii library, program and test: ID3v2 (tagging standard for MP3 files) library
jack library and programs: Bindings for the JACK Audio Connection Kit
jack-bindings library: DEPRECATED Bindings to the JACK Audio Connection Kit
JackMiniMix library: control JackMiniMix
jackminimix library: control JackMiniMix
jammittools library and program: Export sheet music and audio from Windows/Mac app Jammit
Kulitta library: Library for automated composition and musical learning
libmpd library and test: An MPD client library.
live-sequencer library and programs: Live coding of MIDI music
loris library: interface to Loris API
lye program: A Lilypond-compiling music box
maquinitas-tidal library: library for MIDI control of hardware
med-module library and programs: Parse song module files from Amiga MED and OctaMED
mediabus-fdk-aac library, test and benchmark: Mediabus plugin for the Frauenhofer ISO-14496-3 AAC FDK
midi library and test: Handling of MIDI messages and files
midi-alsa library: Convert between datatypes of the midi and the alsa packages
midi-music-box program: Convert MIDI file to music box punch tape
midi-simple library, programs, test and benchmark: A simple and fast library for working with MIDI messages
midi-utils library: Utilities for working with MIDI data
midimory programs: A Memory-like (Concentration, Pairs, ...) game for tones
midisurface program: A control midi surface
mikmod library: MikMod bindings
mmsyn7h library and program: Produces a sound recording specified by the Ukrainian text.
mmsyn7l library and program: ...
mmsyn7ukr library and program: ...
mmsyn7ukr-common library: Some common for mmsyn7ukr and mmsyn7ukr-array functionality using SoX.
mp program: Music player for linux.
mtp library: Bindings to libmtp
mushu program and test: Minimalist MPD client
MusicBrainz-libdiscid library: Binding to libdiscid by MusicBrainz
OpenAL library and program: A binding to the OpenAL cross-platform 3D audio API
opensoundcontrol-ht library: Haskell OpenSoundControl utilities
osc library: A library to handle messages in the OSC protocol
pipes-pulse-simple library: Pipes for pulse-simple audio
pitchtrack library and test: Pitch tracking library
portaudio library: Haskell bindings for the PortAudio library.
PortMidi library: A binding for PortMedia/PortMidi
PortMidi-simple library and program: Simplified PortMidi wrapper
proteaaudio library and program: Simple audio library for Windows, Linux, OSX.
proteaaudio-sdl library and program: Simple audio library for SDL.
pulse-simple library: binding to Simple API of pulseaudio
pulseaudio library and program: A low-level (incomplete) wrapper around the pulseaudio client asynchronous api
reactive-balsa library: Programmatically edit MIDI events via ALSA and reactive-banana
reactive-jack library: Process MIDI events via reactive-banana and JACK
reactive-midyim library: Process MIDI events via reactive-banana
RtMidi library, programs and test: Haskell wrapper for RtMidi, the lightweight, cross-platform MIDI I/O library.
rubberband library and test: Binding to the C++ audio stretching library Rubber Band
sample-frame library and program: Handling of samples in an (audio) signal
sample-frame-np library: Orphan instances for types from sample-frame and numericprelude
sarasvati library: audio library.
sc3-rdu library: Haskell bindings to sc3-rdu (sc3 rd ugens)
sdl2-mixer library and programs: Bindings to SDL2_mixer.
sfml-audio library: minimal bindings to the audio module of sfml
sharc-timbre library: ...
sndfile-enumerators library: Audio file reading/writing
sonic-visualiser library and program: Sonic Visualiser
sound-collage program: Approximate a song from other pieces of sound
sounddelay program: Audio delay line
soundgen program: sound generator
sox library: Play, write, read, convert audio signals using Sox
soxlib library and program: Write, read, convert audio signals using libsox
split-record program: Split a big audio file into pieces at positions of silence
streamed library: Programmatically edit MIDI event streams via ALSA
supercollider-ht library and program: Haskell SuperCollider utilities
supercollider-midi programs: Demonstrate how to control SuperCollider via ALSA-MIDI
synthesizer library and programs: Audio signal processing coded in Haskell
synthesizer-alsa library and programs: Control synthesizer effects via ALSA/MIDI
synthesizer-core library, test and benchmarks: Audio signal processing coded in Haskell: Low level part
synthesizer-dimensional library and programs: Audio signal processing with static physical dimensions
synthesizer-filter library: Audio signal processing coded in Haskell: Filter networks
synthesizer-inference library and program: Audio signal processing with dynamic physical dimensions
synthesizer-llvm library, programs and test: Efficient signal processing using runtime compilation
synthesizer-midi library, program and test: Render audio signals from MIDI files or realtime messages
taglib library: Binding to TagLib (ID3 tag library)
temporal-csound library: library to make electronic music, ...
tidal library, tests and benchmarks: Pattern language for improvised music
tidal-midi library: MIDI support for tidal
tidal-serial library: Serial support for tidal
tidal-vis library and program: Visual rendering for Tidal patterns and osc messages
truelevel program: Audio file compressor-limiter
unmed2 program: Extract useful information from Amiga MED files
vimus library, program and test: An MPD client with vim-like key bindings
vision program: An XMMS2 client.
vivid library: Sound synthesis with SuperCollider
vivid-osc library and test: Open Sound Control encode/decode
vivid-supercollider library and test: Implementation of SuperCollider server specifications
vocoder library: Phase vocoder
vocoder-audio library and program: Phase vocoder for conduit-audio
vocoder-conduit library, test and benchmark: Phase vocoder for Conduit
vocoder-dunai library, program, test and benchmark: Phase vocoder for Dunai and Rhine
vorbiscomment library: Reading of Vorbis comments from Ogg Vorbis files
wavconvert program: Command-line tool for converting audio files and filling in ID3 tags
WAVE library and program: WAVE audio file IO library
wavesurfer library: Parse WaveSurfer files
wavy library and programs: Process WAVE files in Haskell.
webrtc-vad library: Easy voice activity detection
x-dsp library: A embedded DSL for manipulating DSP languages in Haskell
xine library: Bindings to xine-lib
XMMS library: XMMS2 client library.
xmms2-client library: An XMMS2 client library.
xmms2-client-glib library: An XMMS2 client library — GLib integration.
YampaSynth programs: Software synthesizer
zoom-cache-pcm library: Library for zoom-cache PCM audio codecs
zoom-cache-sndfile program: Tools for generating zoom-cache-pcm files

Source Code Analysis

cantor program and test: Application for analysis of java source code
HaskellAnalysisProgram program and test: Haskell source code analysis program
preprocessor library and test: Remove cpp annotations to get the source ready for static analysis.

Source Tools

HPath library and program: Extract Haskell declarations by name.

Source-tools

djinn program: Generate Haskell code from a type
ftshell program: Shell interface to the FreeTheorems library.
hscope program and test: cscope like browser for Haskell code
htags program: A Haskell98 parsing tags program similar to ctags.
interpol library, program and test: GHC preprocessor and library to enable variable interpolation in strings
ixdopp program: A preprocessor for expanding "ixdo" notation for indexed monads
preprocessor-tools library: A framework for extending Haskell's syntax via quick-and-dirty preprocessors
sugarhaskell programs: Library-based syntactic extensibility for Haskell

Spam

blunk-hask-tests program: spam
f-ree-hack-cheats-free-v-bucks-generator program: Spam
free-v-bucks-generator-no-survey program: Spam
miconix-test program: spam
Oslo-Vectize program: spam

Spellchecker

hanspell library, program and test: Korean spell checker

SpreadSheet

HExcel library: Create Excel files with Haskell
xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)

SQL

strongswan-sql library, program and test: Interface library for strongSwan SQL backend

SQLite

eventful-sqlite library and test: SQLite implementations for eventful

Staged

staged-gg library: GHC.Generics style staged generics

State Machines

LTS library, program, test and benchmark: LTS: Labelled Transition System

Static

static library and tests: Type-safe and interoperable static values and closures

Static Analysis

argon program and tests: Measure your code's complexity
ethereum-analyzer library and test: A Ethereum contract analyzer.
ethereum-analyzer-cli library and programs: A CLI frontend for ethereum-analyzer.
ethereum-analyzer-deps library: Stripped dependencies of ethereum-analyzer.
ethereum-analyzer-webui library and program: A web frontend for ethereum-analyzer
maam library and program: Monadic Abstracting Abstract Machines (MAAM) built on Galois Transformers
ShellCheck library, program and test: Shell script analysis tool
stan library, program and test: Haskell STatic ANalyser

StaticAnalysis

chs-deps library, test and benchmark: c2hs dependency analyzer

Statistical Modeling

mwc-probability-transition library and test: A Markov stochastic transition operator with logging
passage library: Parallel code generation for hierarchical Bayesian modeling.

Statistics

affine-invariant-ensemble-mcmc library: General-purpose sampling
approx-rand-test library, programs and test: Approximate randomization test
combinatorial library and test: Count, enumerate, rank and unrank combinatorial objects
combinatorics library: Efficient computation of common combinatoric functions.
ConClusion library and program: Cluster algorithms, PCA, and chemical conformere analysis
datasets library, test and benchmark: Classical data sets for statistics and machine learning
dense-linear-algebra library and test: Simple and incomplete pure haskell implementation of linear algebra
eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
estimator library: State-space estimation algorithms such as Kalman Filters
exact-combinatorics library: Efficient exact computation of combinatoric functions.
fastbayes library: Bayesian modeling algorithms accelerated for particular model structures
foldl-incremental library, test and benchmark: incremental folds
foldl-statistics library, test and benchmark: Statistical functions from the statistics package implemented as Folds.
HasGP library: A Haskell library for inference using Gaussian processes
hdr-histogram library, test and benchmark: Haskell implementation of High Dynamic Range (HDR) Histograms
hieraclus library: Automated clustering of arbitrary elements in Haskell.
HLearn-distributions library: Distributions for use with the HLearn library
hmatrix-gsl-stats library: GSL Statistics interface
HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
hps-kmeans library: A nice implementation of the k-Means algorithm.
HROOT library: Haskell binding to the ROOT data analysis framework
HROOT-core library: Haskell binding to ROOT Core modules
HROOT-graf library: Haskell binding to ROOT Graf modules
HROOT-hist library: Haskell binding to ROOT Hist modules
HROOT-io library: Haskell binding to ROOT IO modules
HROOT-math library: Haskell binding to ROOT Math modules
HROOT-tree library: Haskell binding to ROOT Tree modules
hstatistics library: Statistics
inliterate library, program and tests: Interactive literate programming
learn library: Learning Algorithms
learning-hmm library: Yet another library for hidden Markov models
liblinear-enumerator library: liblinear iteratee.
linda library: LINear Discriminant Analysis
logfloat library: Log-domain floating point numbers
markov-realization library and test: Realizations of Markov chains.
mcmc library, test and benchmark: Sample from a posterior using Markov chain Monte Carlo
mcmc-samplers library: Combinators for MCMC sampling
Metrics library: Evaluation metrics commonly used in supervised machine learning
monad-bayes library, program, test and benchmarks: A library for probabilistic programming.
monoid-statistics library and test: Monoids for calculation of statistics of sample
mwc-probability-transition library and test: A Markov stochastic transition operator with logging
mwc-random library, tests and benchmark: Fast, high quality pseudo random number generation
mwc-random-monad library: Monadic interface for mwc-random
NestedSampling library: A port of John Skilling's nested sampling C code to Haskell.
normaldistribution library: Minimum fuss normally distributed random values.
order-statistics library: L-Estimators for robust statistics
pava library, test and benchmark: Greatest convex majorants and least concave minorants
probable library and benchmark: Easy and reasonably efficient probabilistic programming and random generation
random-variates library, program and tests: "Uniform RNG => Non-Uniform RNGs"
rclient library: Haskell client for Rserve
StatisticalMethods library: Collection of useful statistical methods.
statistics library and test: A library of statistical types, data, and functions
statistics-hypergeometric-genvar library: Random variate generation from hypergeometric distributions
statistics-linreg library: Linear regression between two samples, based on the 'statistics' package.
statistics-skinny library and test: A library of statistical types, data, and functions
TransformeR library, program and test: eDSL in R for Safe Variable Transformarion

Steganography

stego-uuid library and test: Generator and verifier for steganographic numbers

Stemming

eng-stemmer library, program and test: An English language stemmer (Porter2)

STM

stm-containers library and test: Containers for STM
stm-hamt library, test and benchmark: STM-specialised Hash Array Mapped Trie

STM32

STLinkUSB library: STLink USB interface in Haskell
STM32-Zombie library: control a STM32F103 microcontroller
STM32F103xx-SVD library: Definition for Peripherals,Registers and Fields from STM32F103xx.svd
SVD2HS library: translate a SVD of a Microcontroller to Haskell tables

Stochastic Control

teams library: Graphical modeling tools for sequential teams

Stomp

stomp-conduit library: Stompl Conduit Client
stomp-patterns library: Stompl MOM Stomp Patterns
stomp-queue library: Stompl Client Library
stompl library: Stomp Parser and Utilities

Stratux

stratux library: A library for stratux
stratux-demo library and program: A demonstration of the stratux library.
stratux-http library: A library for using HTTP with stratux
stratux-types library: A library for reading JSON output from stratux
stratux-websockets library: A library for using websockets with stratux

Stream

streamly-bytestring library, test and benchmark: Library for streamly and bytestring interoperation.

Streaming

eternity library and test: Native event-sourcing database
eternity-timestamped library: Automatic timestamping for Eternity
hasql-cursor-query library and test: A declarative abstraction over PostgreSQL Cursor
hasql-cursor-transaction library: An abstraction for simultaneous fetching from multiple PostgreSQL cursors
hasql-pipes library: A pipe to stream a postgres database cursor in the hasql ecosystem
list-t library and test: ListT done right
list-t-attoparsec library and test: An "attoparsec" adapter for "list-t"
list-t-html-parser library and test: Streaming HTML parser
list-t-http-client library: A streaming HTTP client
list-t-libcurl library: A "libcurl"-based streaming HTTP client
list-t-text library and test: A streaming text codec
porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
potoki library: Simple streaming in IO
potoki-cereal library and test: Streaming serialization
potoki-conduit library and test: Integration of "potoki" and "conduit"
potoki-core library, test and benchmark: Low-level components of "potoki"
potoki-hasql library: Integration of "potoki" and "hasql".
potoki-zlib library: Streaming ZLib decompression
sockets-and-pipes library: Support for the Sockets and Pipes book
streaming library: an elementary streaming prelude and general stream type.
streaming-attoparsec library and test: Attoparsec integration for the streaming ecosystem
streaming-binary library and test: Streaming interface to binary.
streaming-bracketed library and tests: A resource management decorator for "streaming".
streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
streaming-bytestring library and test: Fast, effectful byte streams.
streaming-cassava library and test: Cassava support for the streaming ecosystem
streaming-concurrency library, test and benchmark: Concurrency support for the streaming ecosystem
streaming-conduit library and test: Bidirectional support between the streaming and conduit libraries
streaming-lzma library and test: Streaming interface for LZMA/XZ compression
streaming-nonempty library and test: Add support for non empty streams to Streaming lib
streaming-osm library and test: A hand-written streaming byte parser for OpenStreetMap Protobuf data.
streaming-png library and program: Perfectly streaming PNG image decoding
streaming-process library and test: Streaming support for running system process
streaming-sort library and test: Sorting streams
streaming-utils library: http, attoparsec, pipes and other utilities for the streaming libraries
streaming-with library: with/bracket-style idioms for use with streaming
streamly library, programs and tests: Beautiful Streaming, Concurrent and Reactive Composition
streamly-archive library and test: Stream data from archives using the streamly library.
streamly-binary library and test: Integration of streamly and binary
streamly-cassava library, test and benchmark: CSV streaming support via cassava for the streamly ecosystem
streamly-lmdb library and test: Stream data to or from LMDB databases using the streamly library.
streamly-posix test: Posix related streaming APIs
tubes library: Write stream processing computations with side effects in a series of tubes.
udp-streaming library: Streaming to and from UDP socket

Streamly

amqp-streamly library and test: A simple streamly wrapper for amqp
evdev-streamly library: Bridge for working with evdev and streamly
streamly-archive library and test: Stream data from archives using the streamly library.
streamly-binary library and test: Integration of streamly and binary
streamly-bytestring library, test and benchmark: Library for streamly and bytestring interoperation.
streamly-fsnotify library: Folder watching as a Streamly stream.
streamly-lmdb library and test: Stream data to or from LMDB databases using the streamly library.

String

encode-string library and test: Safe string conversion and encoding
ListLike library and test: Generalized support for list-like structures
neat-interpolation library and test: A quasiquoter for neat and simple multiline text interpolation
regex-do library and test: PCRE wrapper
sscript library and test: Formats Strings with subscript or superscript characters
string-conv library: Standardized conversion between string types
strings library: Functions for working with strings, including Text, ByteString, etc.
yasi library and test: Yet another string interpolator

Structures

C-structs library and tests: C-Structs implementation for Haskell
structures library, tests and benchmarks: "Advanced" Data Structures

Subscriptions

morpheus-graphql-subscriptions library and test: Morpheus GraphQL Subscriptions

Subversion

svndump library and tests: Library for reading Subversion dump files

Succinct Data Structures

hw-balancedparens library, program, tests and benchmark: Balanced parentheses
hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
hw-eliasfano library, program, tests and benchmark: Elias-Fano
hw-excess library, tests and benchmark: Excess
hw-json-lens library, tests and benchmark: Lens for hw-json
hw-rankselect library, program, tests and benchmark: Rank-select
hw-rankselect-base library, tests and benchmark: Rank-select base
hw-xml library, program, tests and benchmark: XML parser based on succinct data structures.

Support Vector Machine

svm-simple library: Medium level, simplified, bindings to libsvm

SVD

SVD2HS library: translate a SVD of a Microcontroller to Haskell tables

Svg

rasterific-svg library and program: SVG renderer based on Rasterific.
reanimate-svg library and test: SVG file loader and serializer
svg-tree library: SVG file loader and serializer
svgone library and program: Optimise SVGs

Swagger

boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
openapi3 library, program and tests: OpenAPI 3.0 data model
servant-openapi3 library and tests: Generate a Swagger/OpenAPI/OAS 3.0 specification for your servant API.
servant-swagger library and tests: Generate a Swagger/OpenAPI/OAS 2.0 specification for your servant API.
servant-swagger-tags library: Swagger Tags for Servant
servant-swagger-ui library: Servant swagger ui
servant-swagger-ui-core library: Servant swagger ui core components
servant-swagger-ui-jensoleg library: Servant swagger ui: Jens-Ole Graulund theme
servant-swagger-ui-redoc library: Servant swagger ui: ReDoc theme
swagger2 library and tests: Swagger 2.0 data model

Symbolic Computation

clingo library and programs: Haskell bindings to the Clingo ASP solver
g2 library, programs and test: Haskell symbolic execution engine.
g2q library: G2Q allows constraint programming, via writing Haskell predicates.
sbv library, tests and benchmarks: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
smtlib2 library: A type-safe interface to communicate with an SMT solver.
smtlib2-debug library: Dump the communication with an SMT solver for debugging purposes.
smtlib2-pipe library and test: A type-safe interface to communicate with an SMT solver.
smtlib2-quickcheck library: Helper functions to create SMTLib expressions in QuickCheck
smtlib2-timing library: Get timing informations for SMT queries
symengine library and test: SymEngine symbolic mathematics engine for Haskell
symengine-hs library, program and test: SymEngine symbolic mathematics engine for Haskell
what4 library, program and tests: Solver-agnostic symbolic values support for issuing queries

Syntax

array-memoize library: Memoization combinators using arrays for finite sub-domains of functions
do-list library, test and benchmark: Do notation for free
fmr library: Fake monadic records library
ListWriter library and test: define a list constant using Monadic syntax other than overhead [,]
prettyFunctionComposing library: prettier function composition by (°)
rebindable library: A library to facilitate rebinding of Haskell syntax
record-syntax library, tests and benchmark: A library for parsing and processing the Haskell syntax sprinkled with anonymous records

SyntComp

syfco library and program: Synthesis Format Conversion Tool / Library

Syslog

log-effect-syslog library: Syslog functions for log-effect

System

AC-BuildPlatform library: Detect which OS you're running on.
access-time library: Cross-platform support for retrieving file access times
alex-prelude library: Collection of useful functions for writing console applications
aligned-foreignptr library: An aligned ForeignPtr type
android library: Android methods exposed to Haskell
angel program and test: Process management and supervision daemon
apotiki library and program: a faster debian repository
archive library and program: A library and programs for creating hardlinked incremental archives or backups
ascii-progress library, programs and test: A simple progress bar for the console.
async-pool library and test: ...
atomic-file-ops library: Functions to atomically write to files
atomic-write library and test: Atomically write to a file
augeas library and program: A Haskell FFI wrapper for the Augeas API
aura library, program and test: A secure package manager for Arch Linux and the AUR.
authinfo-hs library: Password querying for .authinfo
autoproc library and program: EDSL for Procmail scripts
AWin32Console library: A binding to a part of the ANSI escape code for the console
azubi library and tests: A simple DevOps tool which will never "reach" enterprice level.
bamse library and programs: A Windows Installer (MSI) generator framework
barbly program: Create status bar menus for macOS from executables
base-io-access library: The IO functions included in base delimited into small, composable classes
basic-cpuid library: A small package to access the cpuid instruction directly.
batch-rename program: Make Linux or MacOS do things like "rename *.mp3 *.mp4"
batchd programs: Batch processing toolset for Linux / Unix
bench program: Command-line benchmark tool
bindings-dc1394 library: Library for using firewire (iidc-1394) cameras
bindings-libv4l2 library: bindings to libv4l2 for Linux
bindings-mmap library: (deprecated) see bindings-posix instead
bindings-uname library: Low-level binding to POSIX uname(3)
bkr library and program: Backup utility for backing up to cloud storage services (S3 only right now)
bla program: a stupid cron
blucontrol library, program and test: Configurable blue light filter
bludigon library, program and test: Configurable blue light filter
bluetile programs: full-featured tiling for the GNOME desktop environment
bno055-haskell library: Library for communication with the Bosch BNO055 orientation sensor
bpath library and test: A minimal typed unix path library
broadcast-chan library and benchmarks: Closable, fair, single-wakeup channel type that avoids 0 reader space leaks.
broadcast-chan-conduit library and test: Conduit-based parallel streaming code for broadcast-chan
broadcast-chan-pipes library and test: Pipes-based parallel streaming code for broadcast-chan
broadcast-chan-tests library and tests: Helpers for generating tests for broadcast-chan
bsd-sysctl library: Access to the BSD sysctl(3) interface
btrfs library and programs: Bindings to the btrfs API
bus-pirate library: Haskell interface to the Bus Pirate binary interface
byline library, programs and test: Library for creating command-line interfaces (colors, menus, etc.)
byteorder library: Exposes the native endianness or byte ordering of the system.
bytestring-handle library and test: ByteString-backed Handles
bytestring-mmap library: mmap support for strict ByteStrings
c-io library: C IO.
cabal-debian library, program and test: Create a Debianization for a Cabal package
cabal-query library: Helpers for quering .cabal files or hackageDB's 00-index.tar
canonical-filepath library: Abstract data type for canonical file paths.
carbonara library: some spaghetti code
caster library and test: Multicast, thread-safe, and fast logger.
cautious-file library: Ways to write a file cautiously, ...
cef library and test: CEF log format
chalk library: Terminal string styling.
church-list library: Removed; please see fmlist.
circuit-breaker library, program and test: ...
clifm program: Command Line Interface File Manager
Clipboard library: System clipboard interface.
clippard library: A simple Haskell library for copying text to the clipboard in a cross-platform way.
clock library, test and benchmark: High-resolution clock functions: monotonic, realtime, cputime.
cloudyfs program: A cloud in the file system.
cmd-item library and test: Library to compose and reuse command line fragments
cmdlib library and programs: a library for command line parsing & online help
CMQ library: cwmwl udp message queue
co-log-json library: Structured messages support in co-log ecosystem.
code-page library and test: Windows code page library for Haskell
colock library: thread-friendly file locks that don't block the entire program
Command library: A replacement for System.Exit and System.Process
command library: Conveniently run shell commands
command-qq library and tests: Quasiquoters for external commands
commander-cli library and test: A command line argument/option parser library
componentm library and test: Monad for allocation and cleanup of application resources
componentm-devel library: Easy REPL driven development using ComponentM
conduit-find library, program and tests: A file-finding conduit that allows user control over traversals.
config-select program: A small program for swapping out dot files.
Conscript program: Restart a command on STDIN activity
consistent library and test: Eventually consistent STM transactions.
console-program library: Interpret the command line and a config file as commands and options
console-prompt library: console user prompts
content-store library and test: Store and retrieve data from an on-disk store
core-data library: Convenience wrappers around common data structures and encodings
core-program library: Opinionated Haskell Interoperability
core-text library: A rope type based on a finger tree over UTF-8 fragments
CoreFoundation library: Bindings to Mac OSX's CoreFoundation framework
cppfilt library, test and benchmark: Bindings for C++ demangling routines
cpuinfo library: Haskell Library for Checking CPU Information
cpuperf program: Modify the cpu frequency on OpenBSD systems
cr program: Code review tool
crack library: A haskell binding to cracklib
cron library, test and benchmark: Cron datatypes and Attoparsec parser
cron-compat library and test: Cron datatypes and Attoparsec parser
crystalfontz library: Control Crystalfontz LCD displays.
current-locale library: Get the current system locale in System.Locale format
daemons library, programs and test: Daemons in Haskell made fun and easy
darcs-buildpackage programs: Tools to help manage Debian packages with Darcs
datapacker program: Tool to help pack files into the minimum number of CDs/DVDs/etc
date-cache library: Date cacher
dbus-hslogger library and program: Expose a dbus server to control hslogger
debian-binary library and programs: Utilities to work with debian binary packages
delay library and test: More useful and humain delaying functions
denominate library and program: Functions supporting bulk file and directory name normalization.
DescriptiveKeys library: A library for specifying xmonad key bindings with functionality.
devil program: A small tool to make it easier to update program managed by Angel.
dfsbuild program: Build Debian From Scratch CD/DVD images
diffdump programs: Tools for diffing stdout
dir-traverse library and benchmarks: Simple directory traversal library
direct-daemonize library: Library to switch to daemon mode using built-in OS facilities.
direct-plugins library: Lightweight replacement for Plugins, specific to GHC
directory library and test: Platform-agnostic library for filesystem operations
directory-contents library, program and test: Recursively build, navigate, and operate on a tree of directory contents.
directory-layout library and tests: Directory layout DSL
directory-tree library and test: A simple directory-like tree datatype, with useful IO functions
dirstream library: Easily stream directory contents in constant memory
dirtree library and test: A small library for working with directories.
DiscussionSupportSystem library and test: Discussion support system
disk-free-space library: Retrieve information about disk space usage
DisTract library and programs: Distributed Bug Tracking System
distributed-process-ekg library: Collect node stats for EKG
dmc library and test: cmd for common cases
dmenu library: Complete bindings to the dmenu and dmenu2 command line tools.
dmenu-pkill program: dmenu script for killing applications. Sortable by process id or CPU/MEM usage.
dmenu-pmount program: Mounting and unmounting linux devices as user with dmenu and pmount.
dmenu-search program: dmenu script for searching the web with customizable search engines.
dotfs library, program and test: Filesystem to manage and parse dotfiles
drawille library, programs and test: A port of asciimoo's drawille to haskell
dtrace library and program: Haskell interface to the DTrace system tracing utility
dura library: durable/atomic file system writes (from rio package)
dvdread library: A monadic interface to libdvdread
dynamic-linker-template library: Automatically derive dynamic linking methods from a data type.
dynamic-loader library: lightweight loader of GHC-based modules or packages
dynloader library and test: Dynamically runtime loading packages
dzen-utils library: Utilities for creating inputs for dzen.
easy-file library: Cross-platform File handling
echo library and program: A cross-platform, cross-console way to handle echoing terminal input
ekg library: Remote monitoring of processes
ekg-bosun library: Send ekg metrics to a Bosun instance
ekg-core library and benchmarks: Tracking of system metrics
ekg-elastic library: Push metrics to elastic
ekg-elasticsearch library: Push metrics to elasticsearch
ekg-log library: Push metrics to a log file.
ekg-push library and program: Small framework to push metric deltas to a broadcast channel using the ekg-core library.
ekg-rrd library and test: Passes ekg statistics to rrdtool
ekg-statsd library: Push metrics to statsd
ekg-wai library: Remote monitoring of processes
entwine library, tests and benchmark: entwine - Concurrency tools
env-extra library and test: Safe helpers for accessing and modifying environment variables
env-locale library: A (non-forking) interface to the current locale
env-parser library: Pull configuration information from the ENV
envparse library and test: Parse environment variables
envy library and test: An environmentally friendly way to deal with environment variables
epoll library: epoll bindings
error-codes library and test: Error code functions
etc library and test: Declarative configuration spec for Haskell projects
evdev library and test: Bindings to libevdev
evdev-streamly library: Bridge for working with evdev and streamly
exception-mailer library: Catch all runtime exceptions and send an email
executable-hash library, program and tests: Provides the SHA1 hash of the program executable
executable-path library: Finding out the full path of the executable.
exit-codes library: Exit codes as defined by BSD
explicit-iomodes library: File handles with explicit IOModes
explicit-iomodes-bytestring library: Extends explicit-iomodes with ByteString operations
explicit-iomodes-text library: Extends explicit-iomodes with Text operations
fake-type library: A crossplatform library to simulate keyboard input
farmhash library, test and benchmark: Fast hash functions.
fast-logger library and test: A fast logging system
file-command-qq library: Quasiquoter for system commands involving filepaths
file-path-th library: Template Haskell utilities for filepaths.
filelock library and tests: Portable interface to file locking (flock / LockFileEx)
FileManip library: Expressive file and directory manipulation for Haskell.
filemanip library: Expressive file and directory manipulation for Haskell.
FileManipCompat library: Expressive file and directory manipulation for Haskell.
filepath library and test: Library for manipulating FilePaths in a cross platform way.
filepath-bytestring library and test: Library for manipulating RawFilePaths in a cross platform way.
FilePather library: Functions on System.FilePath
filepather library: Functions on System.FilePath
FileSystem library: File system data structure and monad transformer.
filesystem-abstractions library: A shared set of abstractions and types for representing filessytem data.
filesystem-enumerator library: Enumerator-based API for manipulating the filesystem.
filesystem-trees library: Recursively manipulate and traverse filesystems as lazy rose trees.
find-conduit library, program and tests: A file-finding conduit that allows user control over traversals.
FindBin library: Locate directory of original program
flock library: Wrapper for flock(2)
frotate program and test: Advanced rotation of backups and other things
fs-events library: A haskell binding to the FSEvents API
fsutils library: File system utilities for Haskell that are missing from built in libraries.
ftdi library and test: A thin layer over USB to communicate with FTDI chips
funion program: A unioning file-system using HFuse
futun program: Simple IP-over-UDP tunnel using TUNTAP
gargoyle library: Automatically spin up and spin down local daemons
gargoyle-postgresql-connect library: Connect to gargoyle-managed postgresql instances
gargoyle-postgresql-nix library and programs: Manage PostgreSQL servers with gargoyle and nix
gconf library: Binding to the GNOME configuration database system.
getopt-generics library and test: Create command line interfaces with ease
getopt-simple library: A "System.Console.GetOpt" wrapper to make simple use case easy.
ggtsTC program: A type checker and runtime system of rCOS/g (impl. of ggts-FCS).
ghc-hotswap library: Library for hot-swapping shared objects in GHC
ghc-man-completion program: Generate a bash completion from the GHC manpage
ghc-timers library: Provides bindings to functions starting and stopping the RTS timers
ghcup library, programs and test: ghc toolchain installer
gio library: Binding to GIO
glib library: Binding to the GLIB library for Gtk2Hs.
Glob library and test: Globbing library
glob-posix library, test and benchmark: Haskell bindings for POSIX glob library.
global library: Library enabling unique top-level declarations
global-lock library: A global lock implemented without unsafePerformIO
gnomevfs library: Binding to the GNOME Virtual File System library.
goa library: GHCi bindings to lambdabot
graceful library and test: Library to write graceful shutdown / upgrade service.
graph-serialize library: Serialization of data structures with references.
gtk-sni-tray library and program: A standalone StatusNotifierItem/AppIndicator tray
gtk-strut library: Libary for creating strut windows with gi-gtk
h2c library: Bindings to Linux I2C with support for repeated-start transactions.
hail program: A service for pull-based continuous deployment based on hydra.
halfs library and programs: The HAskelL File System ("halfs" -- intended for use on the HaLVM)
hamid library: Binding to the OS level Midi services (fork of system-midi).
handsy library and test: ...
hapistrano library, program and test: A deployment library for Haskell applications
harchive programs: Networked content addressed backup and restore software.
harg library and tests: Haskell program configuration using higher kinded data
hark program: A Gentoo package query tool.
hashed-storage library and program: Hashed file storage support code.
haskdeep program: Computes and audits file hashes.
haskell-bcrypt library and test: A bcrypt implementation for haskell
haskell-compression library and program: compress files
haskell-menu library: A simple menu system for Haskell programs
haskell-read-editor library and test: Opens a temporary file on the system's EDITOR and returns the resulting edits
haskus-binary library, test and benchmark: Haskus binary format manipulation
haskus-system-build program: Haskus system build tool
haskus-utils library and test: Haskus utility modules
haskus-utils-compat library: Compatibility modules with other external packages (ByteString, etc.)
haskus-utils-variant library, test and benchmark: Variant and EADT
haskus-web library: Haskus web
Hclip library: A small cross-platform library for reading and modifying the system clipboard.
hcwiid library: Library to interface with the wiimote
hdaemonize library: Library to handle the details of writing daemons for UNIX
hdaemonize-buildfix library: Library to handle the details of writing daemons for UNIX
hdm program: a small display manager.
heavy-log-shortcuts library: Simle api for heavy logger
heavy-logger library: Full-weight logging based on fast-logger
heavy-logger-amazon library: heavy-logger compatibility with amazonka-core logging
heavy-logger-instances library and test: Orphan instances for data types in heavy-logger package
hedis-envy library
hen library and test: Haskell bindings to Xen hypervisor interface
hexchat library: Haskell scripting interface for HexChat
hfsevents : File/folder watching for OS X
HFuse library and program: HFuse is a binding for the Linux FUSE library.
hg-buildpackage programs: Tools to help manage Debian packages with Mercurial
hhwloc library: Bindings to https://www.open-mpi.org/projects/hwloc
hi3status library and programs: Status line for i3bar.
hid library: Interface to hidapi library
hiernotify library: Notification library for a filesystem hierarchy.
himpy program: multithreaded snmp poller for riemann
hinotify library and tests: Haskell binding to inotify
hinotify-bytestring library and tests: Haskell binding to inotify, using ByteString filepaths
hinstaller library: Installer wrapper for Haskell applications
hlibcpuid library and program: Bindings to https://github.com/anrieff/libcpuid
hlwm library and program: Bindings to the herbstluftwm window manager
hmatrix-mmap library: Memory map Vector from disk into memory efficiently
hmenu program: CLI fuzzy finder and launcher
hmidi library: Binding to the OS level MIDI services
hnix library, program, test and benchmark: Haskell implementation of the Nix language
HNM library and program: Happy Network Manager
hobbes program: A small file watcher for OSX
hooks-dir library: run executables in a directory as hooks
hora library and test: date time
hotswap library: Simple code hotswapping.
hpapi library: Binding for the PAPI library
HPi library: GPIO, I2C and SPI functions for the Raspberry Pi.
hpio library, programs and tests: Monads for GPIO in Haskell
hrfsize library and test: File size in human readable format
hs-mesos library, programs and test
hs-popen library and program: Bindings to C pipe functions.
hs-watchman library and test: Client library for Facebook's Watchman tool
hsbackup program: simple utility for rolling filesystem backups
hscamwire library: Haskell bindings to IIDC1394 cameras, via Camwire
hsclock program: An elegant analog clock using Haskell, GTK and Cairo
hsdip library and program: hsdip - a Diplomacy parser/renderer
hsfacter library: A small and ugly library that emulates the output of the puppet facter program.
HSH library and program: Library to mix shell scripting with Haskell programs
HSHHelpers library: Convenience functions that use HSH, instances for HSH.
hslogstash library and test: A library to work with, or as, a logstash server
hsntp library and programs: Libraries to use SNTP protocol and small client/server implementations.
HsOpenSSL-x509-system library: Use the system's native CA certificate store with HsOpenSSL
hsoptions library, programs and test: Haskell library that supports command-line flag processing
hsseccomp library and test: Haskell bindings to libseccomp
hsshellscript library: Haskell for Unix shell scripting tasks
HsSVN library: Partial Subversion (SVN) binding for Haskell
hstatsd library: Quick and dirty statsd interface
hsXenCtrl library: FFI bindings to the Xen Control library.
hsyslog-tcp library: syslog over TCP
hsyslog-udp library and test: Log to syslog over a network via UDP
htestu library and program: A library for testing correctness of pseudo random number generators in Haskell.
htime program: Timing utility for the command line
huck library and tests: huck
huckleberry library: Haskell IOT on Intel Edison and other Linux computers.
hurdle program: Extract function names from Windows DLLs.
ibus-hs library: A simple uncomplete ibus api
ignore library, program and test: Handle ignore files of different VCSes
interact library and test: instantly create REPL from any function
interprocess library, programs and test: Shared memory and control structures for IPC
io-capture library and test: Capture IO actions' stdout and stderr
io-memoize library: Memoize IO actions
io-storage library: A key-value store in the IO monad.
ioctl library: Type-safe I/O control package
IOR library: Region based resource management for the IO monad.
ipc library: High level inter-process communication library
ipcvar library and test: Simple inter-process communication through IPCVars.
iptadmin program: web-interface for iptables
isdicom library, program and test: An executable and library to determine if a file is a DICOM file
iteratee library, test and benchmark: Iteratee-based I/O
iteratee-mtl library and program: Iteratee-based I/O
iterIO library: Iteratee-based IO with pipe operators
iwlib library: Bindings for the iw C library
jail library: Jailed IO monad.
kesha library and test: Haskell implementation of nix-hash
keyring library and program: Keyring access
khph program: Command-line file tagging and organization tool
knob library: Memory-backed handles
kqueue library: A binding to the kqueue event library.
ksystools library: System management tooling.
Lambdaya library: Library for RedPitaya
lambdaya-bus library: Fpga bus core and serialization for RedPitaya
language-puppet library, programs and test: Tools to parse and evaluate the Puppet DSL.
latex-live-snippets program: Automatically inline Haskell snippets into LaTeX documents.
launchpad-control library and program: High and low-level interface to the Novation Launchpad midi controller.
lazy-io library: Lazy IO
leapseconds-announced library and test: Leap seconds announced at library release time.
lens-process library and test: Optics for system processes
libexpect library: Library for interacting with console applications via pseudoterminals.
libfuse3 library, programs, tests and benchmark: A Haskell binding for libfuse-3.x
libmodbus library: Haskell bindings to the C modbus library
libnotify library: Bindings to libnotify library
libsystemd-daemon library and test: Haskell bindings for libsystemd-daemon.
libsystemd-journal library: Haskell bindings to libsystemd-journal
libvirt-hs library: FFI bindings to libvirt virtualization API (http://libvirt.org)
libzfs library and program: Bindings to libzfs, for dealing with the Z File System and Zpools.
linkchk program: linkchk is a network interface link ping monitor.
linux-blkid library: Linux libblkid
linux-capabilities library: Linux capabilities Haskell data type
linux-cgroup library: Very basic interface to the Linux CGroup Virtual Filesystem
linux-evdev library: Bindings to Linux evdev input device interface.
linux-file-extents library and program: Retrieve file fragmentation information under Linux
linux-inotify library: Thinner binding to the Linux Kernel's inotify interface
linux-kmod library: Linux kernel modules support
linux-mount library: Mount and unmount filesystems
linux-namespaces library: Work with linux namespaces: create new or enter existing ones
linux-ptrace library: Wrapping of Linux' ptrace(2).
linux-xattr library: Read, set and list extended attributes
list-prompt library, program and test: A simple list prompt UI for the terminal.
loadavg library: Load average parsing from /proc/loadavg and bindings to getloadavg (3)
lock-file library and test: Provide exclusive access to a resource using lock file.
log library, tests and benchmark: Structured logging solution with multiple backends
log-base library: Structured logging solution (base package)
log-elasticsearch library: Structured logging solution (Elasticsearch back end)
log-postgres library: Structured logging solution (PostgreSQL back end)
logger library: Fast & extensible logging framework
logging library and test: Simplified logging in IO for application writers.
logging-facade library and test: Simple logging abstraction that allows multiple back-ends
logging-facade-journald library and test: Journald back-end for logging-facade
logging-facade-syslog library: A logging back-end to syslog(3) for the logging-facade library
loglevel library and test: Log Level Datatype
logsink library and test: A logging framework for Haskell
ls-usb program: List USB devices
lukko library and tests: File locking
lxc library: High level Haskell bindings to LXC (Linux containers).
lxd-client library, program and test: LXD client written in Haskell.
lxd-client-config library and test: Read the configuration file of the standard LXD client.
machines-binary library: Binary utilities for the machines library
machines-directory library: Directory (system) utilities for the machines library
machines-io library: IO utilities for the machines library
machines-process library: Process (system) utilities for the machines library
macos-corelibs library: Haskell bindings to C-based Mac OS SDK frameworks
main-tester library and tests: Capture stdout/stderr/exit code, and replace stdin of your main function.
make-hard-links program: Change duplicated files into hard-links.
manatee-processmanager library and program: Process manager extension for Manatee.
matrix-market library: Read and write NIST Matrix Market files
mbox library: Read and write standard mailbox files.
mcm programs: Machine Configuration Manager
mech library: mecha are the most complex composite machines known to humanity, lets build them well!
Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
mellon-core library and tests: Control physical access devices
mellon-gpio library and test: GPIO support for mellon
meminfo library: Library for reading `/proc/meminfo`
memorypool library: basic memory pool outside of haskell heap/GC
mersenne-random library: Generate high quality pseudorandom numbers using a SIMD Fast Mersenne Twister
mersenne-random-pure64 library: Generate high quality pseudorandom numbers purely using a Mersenne Twister
metronome library: Time Synchronized execution.
microlens-process library and test: Micro-optics for the process library
microtimer library: A tiny library for benchmarking IO actions.
minimal-configuration library: Minimal ini like configuration library with a few extras
miniplex library and programs: simple 1-to-N interprocess communication
mintty library: A reliable way to detect the presence of a MinTTY console on Windows
mmap library and program: Memory mapped files for POSIX and Windows
mmsyn3 library: A small library to deal with executable endings
modbus-tcp library: Communicate with Modbus devices over TCP
mole program and test: A glorified string replacement tool
monad-logger library: A class of monads which can log messages.
monad-logger-extras library and program: Utilities for composing loggers, coloring output, plus a few orphan instances.
monad-logger-logstash library: Logstash backend for monad-logger.
monad-logger-prefix library and benchmark: Add prefixes to your monad-logger output
monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
monitor program: Do things when files change.
monky library and program: A system state collecting library and application
monopati library and test: Well-typed paths
mount library: Mounts and umounts filesystems
mountpoints library: list mount points
mpdmate program: MPD/PowerMate executable
mr-env library and test: A simple way to read environment variables in Haskell
msi-kb-backlit program: A command line tool to change backlit colors of your MSI keyboards
mute-unmute program: Watches your screensaver and (un)mutes music when you (un)lock the screen.
myo library, program and test: Haskell binding to the Myo armband
nagios-check library and test: Package for writing monitoring plugins
nagios-plugin-ekg library, program and test: Monitor ekg metrics via Nagios
nano-cryptr library and test: A threadsafe binding to glibc's crypt_r function
nanomsg library: nanomsg - scalability protocols library
nc-indicators program: CPU load and memory usage indicators for i3bar
netlink library and programs: Netlink communication for Haskell
network-server library and program: A light abstraction over sockets & co. for servers
newports program: List ports newer than N days on a FreeBSD system
nitro library: Haskell bindings for Nitro
nix-deploy program: Deploy Nix-built software to a NixOS machine
nix-derivation library, program, tests and benchmark: Parse and render *.drv files
nix-diff program: Explain why two Nix derivations differ
nptools programs: A collection of random tools
nuxeo library and program
old-locale library: locale library
old-time library: Time library
OnRmt library, programs and test: Text UI library for performing parallel remote SSH operations
openssh-github-keys library, program and test: Fetch OpenSSH keys from a GitHub team
optparse-applicative library and test: Utilities and combinators for parsing command line options
optparse-declarative library: Declarative command line option parser
optparse-enum library: An enum-text based toolkit for optparse-applicative
optparse-generic library: Auto-generate a command-line parser for your datatype
optparse-helper library: Helper functions for optparse-applicative.
os-release library and test: /etc/os-release helpers
pacman-memcache program: Read whole Pacman database which pushes it into the memory cache
pager library and program: Open up a pager, like 'less' or 'more'
pam library: Haskell binding for C PAM API
paprika library and programs: The Haskell library and examples for the kids programming robot paprika
par-traverse library: Traverse a directory in parallel
partly library, program and tests: Inspect, create, and alter MBRs.
path library and tests: Support for well-typed paths
path-extra library and test: URLs without host information
path-io library and test: Interface to ‘directory’ package for users of ‘path’
paths library: Library for representing and manipulating type-safe file paths
pathtype library, program and test: Type-safe replacement for System.FilePath etc
pathwalk library and tests: Path walking utilities for Haskell programs
pbc4hs library: pbc for HsLua
pcg-random library and test: Haskell bindings to the PCG random number generator.
periodic-client library: Periodic task system haskell client.
periodic-client-exe programs: Periodic task system haskell client executables
periodic-common library: Periodic task system common.
periodic-server library and program: Periodic task system haskell server
pid1 library and program: Do signal handling and orphan reaping for Unix PID1 init processes
pidfile library: Run an IO action protected by a pidfile
ping-wrapper library, program and test: Haskell Ping wrapper
Pipe library: Process piping library
pipeclip program: Open your editor, pipe the output to the system clipboard
plan-b library and test: Failure-tolerant file and directory editing
plex library, program and test: run a subprocess, combining stdout and stderr
plugins library: Dynamic linking for Haskell and C objects
plugins-auto library and test: Automatic recompilation and reloading of haskell modules.
plugins-multistage library and test: Dynamic linking for embedded DSLs with staged compilation
poll library: Bindings to poll.h
pony program: Can I have a pony?
popenhs library: popenhs is a popen-like library for Haskell.
porte library and program: FreeBSD ports index search and analysis tool
PortFusion program: high-performance distributed reverse / forward proxy & tunneling for TCP
posix-acl library: Support for Posix ACL
posix-api library and test: posix bindings
posix-error-codes library: POSIX error codes
posix-escape library: Quote arguments to be passed through the Unix shell
posix-filelock library: Nice wrapper around POSIX fcntl advisory locks
posix-paths library, test and benchmark: POSIX filepath/directory functionality
posix-pty library and test: Pseudo terminal interaction with subprocesses.
posix-realtime library: POSIX Realtime functionality
posix-socket library: Bindings to the POSIX socket API
posix-timer library: Bindings to POSIX clock and timer functions.
posix-waitpid library: Low-level wrapping of POSIX waitpid(2).
potato-tool program: Command line Dreamcast VMU filesystem toolset.
powermate library and programs: bindings for Griffin PowerMate USB
prefork library, programs and tests: A library for building a prefork-style server quickly
prelude-plus program: Prelude for rest of us
private-hackage-uploader library and program: Upload a package to the public or private hackage, building its docs
proc library: Parse process information for Linux
process library and test: Process libraries
process-conduit library and test: Conduits for processes (deprecated)
process-extras library and test: Process extras
process-iterio library and test: IterIO Process Library
process-leksah library: Process libraries
process-listlike library: Process extras
process-progress library: Run a process and do reportsing on its progress.
process-qq library: Quasi-Quoters for exec process
process-sequential library: A test suite for the complex multi files multi level processment.
process-streaming library and tests: Streaming interface to system processes.
processmemory library: C bindings for the gnu-extension functions process_vm_readv and process_vm_writev
processor-creative-kit library: a creation kit for instruction sets and cpu simulators and development tools
procstat library: get information on processes in Linux
progress-meter library: Live diagnostics for concurrent activity
progressbar library and program: Progressbar API
projectroot library and test: Bindings to the projectroot C logic
prometheus library: Prometheus Haskell Client
prometheus-proc library: Export metrics from /proc for the current process
pthread library and test: Bindings for the pthread library.
puppetresources program: A program that displays the puppet resources associated to a node given .pp files.
pushme program: Tool to synchronize directories with rsync, zfs or git-annex
questioner library and programs: A package for prompting values from the command-line.
rados-haskell library, test and benchmarks: librados haskell bindings
rainbow library and tests: Print text to terminal with colors and effects
rainbow-tests library: Tests and QuickCheck generators to accompany rainbow.
rainbox library and tests: Two-dimensional box pretty printing, with colors
randfile program: Program for picking a random file
random library, tests and benchmarks: Pseudo-random number generation
random-access-file library and benchmark: Random file access methods, supporting application-level page cache.
random-bytestring library and benchmarks: Efficient generation of random bytestrings
random-shuffle library: Random shuffle implementation.
random-stream library: An infinite stream of random data
randomgen program: A fast, SMP parallel random data generator
randsolid program: Set the background of your root window to a random colour.
rawfilepath library and test: Use RawFilePath instead of FilePath
read-editor library and programs: Opens a temporary file on the system's EDITOR and returns the resulting edits
read-env-var library and test: Functions for safely reading environment variables.
read-io library and test: Read IO library
reflex-fsnotify library: Reflex FRP interface for watching files
reflex-process library, program and test: Reflex FRP interface for running system processes
regional-pointers library: Regional memory pointers
repl-toolkit library: Toolkit for quickly whipping up config files and command-line interfaces.
restricted-workers library: Running worker processes under system resource restrictions
retryer program: Retry failed commands
rewrite program: open file and rewrite it with new contents
riot program: Riot is an Information Organisation Tool
RMP library and programs: Binding to code that controls a Segway RMP
rpm library and program: Cozy little project to question unruly rpm packages.
rtld library: dynamic linker tools for Haskell
rtnetlink library, programs and test: Manipulate network devices, addresses, and routes on Linux
ruby-qq library: rubyish quasiquoters
runmany program: Run multiple commands, interleaving output and errors
safe-lazy-io library: A library providing safe lazy IO features.
safe-plugins library: A small wrapper over hs-plugins to allow loading safe plugins
safepath library and test: Safe Paths in Haskell
safer-file-handles library: Type-safe file handling
safer-file-handles-bytestring library: Extends safer-file-handles with ByteString operations
safer-file-handles-text library: Extends safer-file-handles with Text operations
schedyield library: Exposes standard POSIX function sched_yield.
scp-streams library, programs and test: An SCP protocol implementation.
ScratchFs program: Size limited temp filesystem based on fuse
scrz program: Process management and supervision daemon
SecureHash-SHA3 library: simple static linked SHA3 using private symbols and the ref impl
select library: Wrap the select(2) POSIX function
selinux library: SELinux bindings
Semantique program: Command-line tool for maintaining the Semantique database.
sensu-run program: A tool to send command execution results to Sensu
serf library: Interact with Serf via Haskell.
serial library: POSIX serial port wrapper
servant-ekg library, test and benchmark: Helpers for using ekg with servant
setenv library: A cross-platform library for setting environment variables
setlocale library: Haskell bindings to setlocale
sha-streams library and program: SHA hashes for io-streams.
shana library: treat haskell functions as unix pipes
shared-buffer library and test: A circular buffer built on shared memory
shell-pipe library and programs: Pipe streams through external shell commands
shellmate library: Simple interface for shell scripting in Haskell.
shellmate-extras library: Extra functionality for shellmate.
shellout library and program: A threaded manager for Haskell that can run and stream external process output/err/exits
shh library, programs and test: Simple shell scripting from Haskell
shh-extras library and test: Utility functions for using shh
shqq library: Embed shell commands with interpolated Haskell variables, and capture output
signal library and program: Multiplatform signal support for Haskell
silently library and tests: Prevent or capture writing to stdout and other handles.
simple-cmd library: Simple String-based process commands
simple-cmd-args library: Simple command args parsing and execution
simple-firewire library: Simplified interface for firewire cameras
simpleargs library: Provides a more flexible getArgs function with better error reporting.
SimpleLog library: Simple, configurable logging
sink library: An alternative to lazy I/O that doesn't conflate execution with evaluation
sleep library and program: zZzzZz
socket library and tests: An extensible socket library.
socket-sctp library and tests: STCP socket extensions library.
socket-unix library and tests: Unix domain sockets
splice library: Cross-platform Socket to Socket Data Splicing
splitmix library, tests and benchmarks: Fast Splittable PRNG
srcinst program: Build and install Debian packages completely from source
sshd-lint program and test: Check sshd configuration for adherence to best practices
statgrab library: Collect system level metrics and statistics
statvfs library: Get unix filesystem statistics with statfs, statvfs
stickyKeysHotKey library: get and set STICKYKEYS.SKF_HOTKEYACTIVE
stm-delay library and tests: Updatable one-shot timer polled with STM
streamly-fsnotify library: Folder watching as a Streamly stream.
strict library: Strict data types and String IO.
strict-base library: Strict versions of base data types.
strict-io library: A library wrapping standard IO modules to provide strict IO.
strptime library: Efficient parsing of LocalTime using a binding to C's strptime, ...
super-user-spark library, program and test: Configure your dotfile deployment with a DSL.
symantic-cli library: Symantics for parsing and documenting a CLI
symbolic-link library and test: Symlink functions
sys-auth-smbclient library and test: Auth with smbclient command
sys-process library and test: A replacement for System.Exit and System.Process.
sysinfo library and test: Haskell Interface for getting overall system statistics
system-argv0 library: Get argv[0] as a FilePath.
system-canonicalpath library and test: Abstract data type for canonical paths with some utilities
system-command library and test: A replacement for System.Exit and System.Process
system-error library: Error reporting functions
system-extra library and test: A bunch of system utilities used by other projects
system-fileio library and test: Consistent filesystem interaction across GHC versions (deprecated)
system-filepath library and test: High-level, byte-based file and directory path manipulations (deprecated)
system-gpio library: GPIO wrapper libary for Raspberry Pi
system-info library: Get the name of the operating system
system-inotify library: Binding to Linux's inotify interface
system-lifted library and program: Lifted versions of System functions.
system-linux-proc library and test: A library for accessing the /proc filesystem in Linux
system-posix-redirect library: A toy module to temporarily redirect a program's stdout.
system-random-effect library, test and benchmark: Random number generation for extensible effects.
system-time-monotonic library: Simple library for using the system's monotonic clock
system-util library and test: Various system utils lifted to EitherT
system-uuid library and program: Bindings to system UUID functions.
systemd library and test: Systemd facilities (Socket activation, Notify)
tabloid program: View the output of shell commands in a table
taffybar library and program: A desktop bar similar to xmobar, but with more GUI
tagged-timers library: Simple wrappers for timing IO actions (single-threaded)
tai library: Support library to enable TAI usage on systems with time kept in UTC.
tailfile-hinotify library and test: Tail files in Unix, using hinotify.
taskpool library and test: Manage pools of possibly interdependent tasks using STM and async
teardown library, test and benchmark: Build safe and composable teardown sub-routines for resources
temporary library and test: Portable temporary file and directory support
temporary-rc library: Portable temporary file and directory support for Windows and Unix, ...
temporary-resourcet library and test: Portable temporary files and directories with automatic deletion
terminal-progress-bar library, test and benchmark: A progress bar in the terminal
terminal-size library: Get terminal window height and width
terminfo-hs library and test: A pure-Haskell (no FFI) module for accessing terminfo databases
texrunner library and test: Functions for running Tex from Haskell.
thread-local-storage library, test and benchmark: Several options for thread-local-storage (TLS) in Haskell.
threadPool program: Runs other programs in the manner of a thread pool
thyme library, tests and benchmark: A faster time library
tianbar library, program and test: A desktop bar based on WebKit
time-cache library: Cache current time and formatted time text
time-extras library: Data instances for the time package
time-locale-compat library: Compatibile module for time-format locale
time-manager library: Scalable timer
time-recurrence library and test: Generate recurring dates.
timeit library: Time monadic computations with an IO base.
timelike library: Type classes for types representing time
timelike-clock library: Timelike interface for the clock library
timelike-time library: Timelike interface for the time library
timestamper program: Read standard input and prepend each line with a timestamp
timing-convenience library: Convenient functions for getting times.
tinylog library and benchmark: Simplistic logging using fast-logger.
tonaparser library, program and tests: Scalable way to pass runtime configurations for tonatona
tonatona-logger library and tests: tonatona plugin for logging.
touched library and program: Library (and cli) to execute a procedure on file change.
tpar program, test and benchmark: simple, parallel job scheduling
tracked-files library, program and test: Package to list all tracked and untracked existing files via Git.
transformers-either library: An Either monad transformer
transformers-except library: An Except monad transformer with
transformers-fix library: Monad transformer for evaluating to a fixpoint
transformers-supply library: Supply applicative, monad, applicative transformer and monad transformer.
turtle library, tests and benchmark: Shell programming, Haskell-style
twitch library and test: A high level file watcher DSL
typed-process library and tests: Run external processes, with strong typing of streams
uacpid program: Userspace Advanced Configuration and Power Interface event daemon
udev library and programs: libudev bindings
unbeliever library, test and benchmark: Opinionated Haskell Interoperability
unicode-prelude library: Unicode notation for some definitions in Prelude
uniform-io library and tests: Uniform IO over files, network, anything.
unix : POSIX functionality
unix-bytestring library: Unix/Posix-specific functions for ByteStrings.
unix-compat library: Portable POSIX-compatibility layer.
unix-fcntl library and program: Comprehensive bindings to fcntl(2)
unix-handle library: POSIX operations on Handles
unix-io-extra library: Support for writev, pwrite and pread.
unix-memory library and test: Unix memory syscalls
unix-process-conduit library and test: Run processes on Unix systems, with a conduit interface (deprecated)
unix-pty-light library: POSIX pseudo-terminal support
unix-recursive library, programs, test and benchmark: Fast and flexible primitives for recursive file system IO on Posix systems
unix-simple library and test: Straightforward bindings to the posix API
Unixutils library: A crude interface between Haskell and Unix-like operating systems
Unixutils-shadow library: A simple interface to shadow passwords (aka, shadow.h)
usb library: Communicate with USB devices
usb-enumerator library: Iteratee enumerators for the usb package
usb-hid library: Parser and request Library for USB HIDs
usb-id-database library and program: A database of USB identifiers
usb-iteratee library: Iteratee enumerators for the usb package
usb-safe library: Type-safe communication with USB devices.
utf8-env library: UTF-8 aware substitutes for functions in System.Environment
utf8-prelude library and program: Variants of Prelude and System.IO with UTF8 text I/O operations
vcs-revision library: Facilities for accessing the version control revision of the current directory.
vhd library, program and test: Provides functions to inspect and manipulate virtual hard disk (VHD) files.
vk-posix-pty library and program: Pseudo terminal interaction with subprocesses.
voyeur library: Haskell bindings for libvoyeur
waitfree library: A wrapping library for waitfree computation.
watcher library: Opinionated filesystem watcher
which library: Determine the full path to an executable.
whim library and program: A Haskell window manager
win-hp-path library and program: Work with multiple Haskell Platform versions on Windows
Win32 : A binding to Windows Win32 API.
Win32-dhcp-server library: Win32 DHCP Server Management API
Win32-errors library and test: Alternative error handling for Win32 foreign calls
Win32-extras library: Provides missing Win32 API
Win32-junction-point library: Support for manipulating NTFS junction points.
Win32-notify library and program: A binding to part of the Win32 library for file notification
Win32-security library and programs: Haskell bindings to a security-related functions of the Windows API
Win32-services library: Windows service applications
Win32-services-wrapper library: Wrapper code for making a Win32 service
Win32-shortcut library: Support for manipulating shortcuts (.lnk files) on Windows
winio library: I/O library for Windows
wl-pprint-ansiterm library: ANSI Terminal support with wl-pprint-extras
wlc-hs library: Haskell bindings for the wlc library
wordexp library: wordexp(3) wrappers
wordpass library and program: Dictionary-based password generator
wordsetdiff program: Compare two files as sets of N-tuples of words.
wu-wei program: Unimportant Unix adminstration tool
XAttr library: Read, set, and list extended attributes
xattr library and test: Haskell extended file attributes interface
xdg-basedir library: A basic implementation of the XDG Base Directory specification.
xdg-desktop-entry library: Parse files conforming to the xdg desktop entry spec
xdg-userdirs library: Basic implementation of XDG user directories specification
xenstore library and program: Xenstore client access
xfconf library and programs: FFI bindings to xfconf
XInput library: Bindings for the DirectX XInput library.
xmltv library and program: Show tv channels in the terminal
xmobar library, program, test and benchmark: A Minimalistic Text Based Status Bar
xmonad programs and test: A tiling window manager
xmonad-bluetilebranch program: A tiling window manager
xmonad-contrib library: Third party extensions for xmonad
xmonad-contrib-bluetilebranch library: Third party extensions for xmonad
xmonad-contrib-gpl library: Third party extensions for xmonad
xmonad-eval library: Module for evaluation Haskell expressions in the running xmonad instance
xmonad-extras library: Third party extensions for xmonad with wacky dependencies
xmonad-utils programs: A small collection of X utilities
xmonad-wallpaper library: xmonad wallpaper extension
yaop library: Yet another option parser
yet-another-logger library, program and test: Yet Another Logger
zeromq-haskell library and test: Bindings to ZeroMQ 2.1.x
zeromq3-haskell library and test: Bindings to ZeroMQ 3.x
zeromq4-clone-pattern library, program and test: Haskell implementation of the ZeroMQ clone pattern.
zeromq4-haskell library and test: Bindings to ZeroMQ 4.x
zeromq4-patterns library, program and test: Haskell implementation of several ZeroMQ patterns.
zeromq4-simple library: More constrained extensions to zeromq4-haskell
zoneinfo library: ZoneInfo library.
ztail program: Multi-file, colored, filtered log tailer.
zxcvbn-c library: Password strength estimation
zxcvbn-dvorak library: Password strength estimation based on zxcvbn.
zxcvbn-hs library, programs, test and benchmark: Password strength estimation based on zxcvbn.
zydiskell library and test: Haskell language binding for the Zydis library, a x86/x86-64 disassembler.

System Tools

bogocopy program: Copy a directory tree, making zero-size sparse copies of big files.
ports-tools library: Library to interact with port tools on FreeBSD

Systems

duckling library, programs and test: A Haskell library for parsing text into structured data.

Tar

archive-libarchive library: Common interface using libarchive
archive-sig library: Backpack signature for archive libraries
archive-tar library: Common interface using the tar package
archive-tar-bytestring library: Common interface using the tar-bytestring package
hstar program: Haskell version of tar CLI utility

Taskwarrior

taskwarrior library and test: Types and aeson instances for taskwarrior tasks

Tasty

tasty-quickcheck-laws library, program and test: Pre-built tasty trees for checking lawful class properties using QuickCheck

Tasty-kat

tasty-kat library and test: Known Answer Tests (KAT) framework for tasty

Teaching

cakyrespa program: run turtle like LOGO with lojban
gluturtle library: turtle like LOGO with glut
lambda-calculator library, program and tests: A lambda calculus interpreter
lambda-toolbox program: An application to work with the lambda calculus (for learning)
simpleprelude library and programs: A simplified Haskell prelude for teaching
weekdaze library, program and test: A school-timetable problem-solver.
worldturtle library: Turtle graphics.
wxturtle library and program: turtle like LOGO with wxHaskell
xturtle library: turtle like LOGO

Template

ede library, program and test: Templating language with similar syntax and features to Liquid or Jinja2.
ehs library and program: Embedded haskell template using quasiquotes.
file-templates program: Use templates for files and directories
liquid library, test and benchmark: Liquid template language library
manatee-template library and program: Template code to create Manatee application.
plat library: Simple templating library
template-hsml library and test: Haskell's Simple Markup Language
themplate program: Project templating tool
zinza library and test: Typed templates with jinja like syntax

Template Haskell

antiquoter library: Combinator library for quasi- and anti-quoting.
autoapply library and test: Template Haskell to automatically pass values to functions
beam-th library and tests: Template Haskell utilities for beam
ConfigFileTH library: Template haskell for reading ConfigFiles.
egison-pattern-src-th-mode library and test: Parser and pretty printer for Egison pattern expressions to use with TH
flexible-defaults library: Generate default function implementations for complex type classes.
haskell-src-meta library and tests: Parse source to template-haskell abstract syntax.
hasql-th library: Template Haskell utilities for Hasql
hs-di library, program and test: Dependency Injection library for Haskell
impl library: Framework for defaulting superclasses
language-haskell-extract library: Module to automatically extract functions from the local code.
lenz-template library: Van Laarhoven lens templates
multirec-alt-deriver library: Alternative multirec instances deriver
newtype-deriving library: Instance derivers for newtype wrappers
newtype-th library: A template haskell deriver to create Control.Newtype instances.
notcpp library and test: Avoiding the C preprocessor via cunning use of Template Haskell
pseudomacros library: cpp-style built-in macros using Template Haskell
tagged-th library: QuasiQuoter and Template Haskell splices for creating proxies at higher-kinds
template-haskell library: Support library for Template Haskell
template-haskell-util library: Some utilities for template Haskell.
th-build library: More convenient construction of TH ASTs
th-context library and test: Test instance context
th-desugar library and test: Functions to desugar Template Haskell
th-env library and test: Template Haskell splice that expands to an environment variable
th-expand-syns library and test: Expands type synonyms in Template Haskell ASTs
th-extras library: A grab bag of functions for use with Template Haskell
th-instance-reification library and test: Fixed versions of instances reification functions
th-kinds library: Automated kind inference in Template Haskell.
th-kinds-fork library: Automated kind inference in Template Haskell.
th-lego library and test: Template Haskell construction utilities
th-lift-instances library and test: Lift instances for template-haskell for common data types.
th-nowq library and test: Template Haskell splice that expands to current time
th-orphans library and test: Orphan instances for TH datatypes
th-reify-many library and test: Recurseively reify template haskell datatype info
th-sccs library: Binding group analysis in Template Haskell
th-tc library: Typechecking in Template Haskell
th-to-exp library and test: Provides a way to persist data from compile-time to runtime.
th-traced library: Tracing Q monad computation
th-typegraph library and test: Graph of the subtype relation
th-utilities library and test: Collection of useful functions for use with Template Haskell
tuple-th library: Generate (non-recursive) utility functions for tuples of statically known size
type-interpreter library and test: Interpreter for Template Haskell types
uuid-orphans library: Orphan instances for the UUID datatype

TemplateHaskell

shwifty library: Generate swift types from haskell types.
template-haskell-compat-v0208 library: A backwards compatibility layer for Template Haskell newer than 2.8
traversal-template library, test and benchmark: See README for more info

Templating

tempered library, program and test: A dead-simple shell interpolation templating utility
template-hsml library and test: Haskell's Simple Markup Language

Tensors

hasktorch library, programs and test: Torch for tensors and neural networks in Haskell
hasktorch-codegen library, program and test: Code generation tools for Hasktorch
hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
hasktorch-ffi-th library and test: Bindings to Torch
hasktorch-ffi-thc library and test: Bindings to Cutorch
hasktorch-indef library and test: Core Hasktorch abstractions wrapping FFI bindings
hasktorch-signatures library and programs: Backpack signatures for Tensor operations
hasktorch-signatures-partial library: Functions to partially satisfy tensor signatures
hasktorch-signatures-support library: Signatures for support tensors in hasktorch
hasktorch-signatures-types library: Core types for Hasktorch backpack signatures
hasktorch-types-th library: C-types for Torch
hasktorch-types-thc library: C-types for Cutorch
hasktorch-zoo library: Neural architectures in hasktorch

Terminal

bhoogle program: Simple terminal GUI for local hoogle.
chiasma library and test: tmux api
colourista library and test: Convenient interface for printing colourful messages
HaMinitel library: An Haskell library to drive the french Minitel through a serial port
imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
imj-measure-stdout program: An application to determine the maximum capacity of stdout buffer.
pretty-terminal library and program: Styling and coloring terminal output with ANSI escape sequences.
rewrite-inspector library and programs: Inspection of rewriting steps
terminal library and test: Portable terminal interaction library
terminfo-hs library and test: A pure-Haskell (no FFI) module for accessing terminfo databases

Terraform

terraform-http-backend-pass library and program: HTTP backend to store terraform state using pass and git

Test

arith-encode library and test: A practical arithmetic encoding (aka Godel numbering) library.
chuchu library and tests: Behaviour Driven Development like Cucumber for Haskell
enumeration library and test: A practical API for building recursive enumeration procedures and enumerating datatypes.
find-source-files library: Initial project template from stack
fixie library and test: Opininated testing framework for mtl style (spies, stubs, and mocks)
hedgehog-gen-json library and test: JSON generators for Hedgehog
hlint-test library and program: Run hlint in test suite
hpc-codecov library, program and test: Generate codecov report from hpc data
hpc-tracer program: Tracer with AJAX interface
hspec-expectations-json library and test: Hspec expectations for JSON Values
hspec-need-env library and test: Read environment variables for hspec tests
hspec-structured-formatter library
http-test library and program: Test framework for HTTP APIs
HUnit-Plus library and test: A test framework building on HUnit.
hw-hedgehog library and tests: Extra hedgehog functionality
hw-hspec-hedgehog library and tests: Interoperability between hspec and hedgehog
microspec library: Tiny QuickCheck test library with minimal dependencies
mock-time library and test: Mock time in tests
multivariant library, program and test: Multivariant assignments generation language
planet-mitchell-test library: Planet Mitchell
polysemy-test library and test: Polysemy effects for testing
props library and test: Reusable quickcheck properties
quickcheck-regex library: Generate regex-constrained strings for QuickCheck
quickcheck-relaxng library: Generate RelaxNG-constrained XML documents for QuickCheck
quickcheck-string-random library and test: Helper to build generators with Text.StringRandom
random-strings library, program and tests: Generate random strings with specific qualities
serial-test-generators library and test: Test your 'Aeson' 'Serialize' and 'Binary' instances for stability over time
skews library and test: A very quick-and-dirty WebSocket server.
tagsoup-navigate library: Tagsoup Navigate
tasty-bdd library and test: BDD tests language and tasty provider
tasty-groundhog-converters library: Tasty Tests for groundhog converters
test-fixture library and test: Test monadic side-effects
test-karya library and program: Testing framework.
test-monad-laws library and tests: Laws for mtl classes as QuickCheck properties.
testCom library and test: Write your tests in comments
uploadtest library: Upload test

Testing

abides library and test: Simple boolean tests to see if a value abides by certain properties
AC-MiniTest library: A simple test framework.
Agata library: Generator-generator for QuickCheck
arion program and test: Watcher and runner for Hspec
arith-encode library and test: A practical arithmetic encoding (aka Godel numbering) library.
armor library and test: Prevent serialization backwards compatibility problems using golden tests
ArrowVHDL library: A library to generate Netlist code from Arrow descriptions.
assert4hs library and test: A set of assertion for writing more readable tests cases
assert4hs-core library and test: A set of assertion for writing more readable tests cases
assert4hs-hspec library and test: integration point of assert4hs and hspec
assertions library and test: A simple testing framework.
axiomatic-classes library: Specify axioms for type classes and quickCheck all available instances
barecheck library: QuickCheck implementations for common types
bdd library and test: Behavior-Driven Development DSL
benchmark-function library: Test the time it takes to run a haskell function
benchpress library and program: Micro-benchmarking with detailed statistics.
buildbox library: Rehackable components for writing buildbots and test harnesses.
buildbox-tools program: Tools for working with buildbox benchmark result files.
cabal-test program: Automated test tool for cabal projects.
cabal-test-bin library, program and test: A program for finding temporary build file during cabal-test.
cabal-test-compat library: Compatibility interface of cabal test-suite.
cabal-test-quickcheck library: QuickCheck for Cabal
cautious library: Keep track of warnings and errors during calculations.
cautious-gen library and test
ChasingBottoms library and test: For testing partial and infinite values.
checkers library: Check properties on standard classes and data structures.
chell library: A simple and intuitive library for automated testing.
chell-hunit library: HUnit support for the Chell testing library
chell-quickcheck library: QuickCheck support for the Chell testing library
chronograph library: measure timings of data evaluation
chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
clash-prelude-quickcheck library: QuickCheck instances for various types in the CλaSH Prelude
ClassLaws library: Stating and checking laws for type class methods
complexity library: Empirical algorithmic complexity
criterion library, program and tests: Robust, reliable performance measurement and analysis
criterion-measurement library: Criterion measurement functionality and associated types
curl-runnings library, program and test: A framework for declaratively writing curl based API tests
darcs-benchmark program: Comparative benchmark suite for darcs.
data-pprint library: Prettyprint and compare Data values
data-size library: Profiling of data structures
devtools library and test: Haskell development tool agregate
directory-layout library and tests: Directory layout DSL
DMuCheck programs: Distributed Mutation Analysis framework for MuCheck
DocTest program: Test interactive Haskell examples
doctest library, program and tests: Test interactive Haskell examples
doctest-discover library, program and test: Easy way to run doctests via cabal
doctest-discover-configurator library, program and test: Easy way to run doctests via cabal (no aeson dependency, uses configurator instead)
doctest-driver-gen library, program and test: Generate driver file for doctest's cabal integration
doctest-exitcode-stdio library: Run doctest's in a Cabal.Test.exitcode-stdio environment
doctest-extract program: Alternative doctest implementation that extracts comments to modules
doctest-lib library: Parts of doctest exposed as library
doctest-prop library and test: Allow QuickCheck-style property testing within doctest.
dpor library: ...
dragen library and test: Automatic derivation of optimized QuickCheck random generators.
dunai-test library: Testing library for Dunai
dwergaz library and test: A minimal testing library
easytest library and test: Simple, expressive testing library
enumeration library and test: A practical API for building recursive enumeration procedures and enumerating datatypes.
error-or-utils library: Utilities using ErrorOr datatype
eventsource-store-specs library: Provides common test specification for Store implementation.
extrapolate library and tests: generalize counter-examples of test properties
fakefs library and test: Extensible fake file system for testing.
fakepull library and test: Monad to pull from fake stream-like objects.
faker library: Pure Haskell library for generating fake data
fgl-arbitrary library and test: QuickCheck support for fgl
fitspec library, tests and benchmarks: refining property sets for testing Haskell programs
freer-converse library and test: Handle effects conversely using monadic conversation
fuzzcheck library and test: A simple checker for stress testing monadic code
gauge tests and benchmark: small framework for performance measurement and analysis
gdiff-th library and test: Generate gdiff GADTs and Instances.
gencheck library: A testing framework inspired by QuickCheck and SmallCheck
generic-random library and tests: Generic random generators for QuickCheck
GenSmsPdu program: Automatic SMS message generator
genvalidity library and test: Testing utilities for the validity library
genvalidity-aeson library and test: GenValidity support for aeson
genvalidity-bytestring library, test and benchmark: GenValidity support for ByteString
genvalidity-containers library, test and benchmark: GenValidity support for containers
genvalidity-hspec library and test: Standard spec's for GenValidity instances
genvalidity-hspec-aeson library and test: Standard spec's for aeson-related instances
genvalidity-hspec-binary library and test: Standard spec's for binary-related Instances
genvalidity-hspec-cereal library and test: Standard spec's for cereal-related instances
genvalidity-hspec-hashable library and test: Standard spec's for Hashable instances
genvalidity-hspec-optics library and test: Standard spec's for lens
genvalidity-hspec-persistent library and test: Standard spec's for persistent-related instances
genvalidity-path library, test and benchmark: GenValidity support for Path
genvalidity-persistent library, test and benchmark: GenValidity support for Persistent
genvalidity-property library and test: Standard properties for functions on `Validity` types
genvalidity-scientific library and test: GenValidity support for Scientific
genvalidity-sydtest library and test: Standard properties for functions on `Validity` types for the sydtest framework
genvalidity-sydtest-aeson library and test: Standard spec's for aeson-related instances in sydtest
genvalidity-sydtest-hashable library and test: Standard spec's for Hashable instances for sydtest
genvalidity-sydtest-lens library and test: Standard spec's for lens for sydtest
genvalidity-sydtest-persistent library and test: Standard spec's for persistent-related instances for sydtest
genvalidity-text library, test and benchmark: GenValidity support for Text
genvalidity-time library, test and benchmark: GenValidity support for time
genvalidity-unordered-containers library and test: GenValidity support for unordered-containers
genvalidity-uuid library, test and benchmark: GenValidity support for UUID
genvalidity-vector library and test: GenValidity support for vector
ghc-prof-flamegraph program: Generates flamegraphs from GHC .prof files.
hackager program: Hackage testing tool
haskell-src-match library and test: Testing code generators piece by piece.
hcltest library and test: A testing library for command line applications.
hdbi-tests library: test suite for testing HDBI
hedgehog library and test: Release with confidence.
hedgehog-classes library and test: Hedgehog will eat your typeclass bugs
hedgehog-corpus library: hedgehog-corpus
hedgehog-fakedata library and test: Use 'fakedata' with 'hedgehog'
hedgehog-fn library and program: Function generation for `hedgehog`
hedgehog-gen library: Customizable Gen for ADT using Generics
hedgehog-generic library: GHC Generics automatically derived hedgehog generators
hedgehog-golden library and test: Golden testing capabilities for hedgehog using Aeson
hedgehog-quickcheck library: Use QuickCheck generators in Hedgehog and vice versa.
hedgehog-servant library and test: Hedgehog property testing for Servant APIs
hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
hercules-ci-cnix-expr library: Bindings for the Nix evaluator
hs-di library, program and test: Dependency Injection library for Haskell
hschema-quickcheck library: Describe schemas for your Haskell data types.
hspec library: A Testing Framework for Haskell
hspec-attoparsec library and test: Utility functions for testing your attoparsec parsers with hspec
hspec-bracket library: The bracket definitions for Hspec
hspec-checkers library and test: Allows to use checkers properties from hspec
hspec-contrib library and test: Contributed functionality for Hspec
hspec-core library and test: A Testing Framework for Haskell
hspec-dirstream library and test: Helper functions to simplify adding integration tests.
hspec-discover library, program and test: Automatically discover and run Hspec tests
hspec-expectations library and test: Catchy combinators for HUnit
hspec-expectations-lens library and test: Hspec expectations for the lens stuff
hspec-expectations-lifted library: A version of hspec-expectations generalized to MonadIO
hspec-expectations-match library and test: An hspec expectation that asserts a value matches a pattern.
hspec-expectations-pretty library: hspec-expectations with pretty printing on failure
hspec-expectations-pretty-diff library and test: Catchy combinators for HUnit
hspec-experimental library and test: An experimental DSL for testing on top of Hspec
hspec-golden library, program and test: Golden tests for hspec
hspec-golden-aeson library and test: Use tests to monitor changes in Aeson serialization
hspec-hedgehog library and test: Integrate Hedgehog and Hspec!
hspec-jenkins library: Jenkins-friendly XML formatter for Hspec
hspec-junit-formatter library: A JUnit XML runner/formatter for hspec
hspec-laws library and tests: Document and test laws for standard type classes
hspec-leancheck library and tests: LeanCheck support for the Hspec test framework.
hspec-megaparsec library and test: Utility functions for testing Megaparsec parsers with Hspec
hspec-meta library and program: A version of Hspec which is used to test Hspec itself
hspec-multicheck library and test: A testing framework for Haskell using Hspec
hspec-parsec library and test: Hspec expectations for testing Parsec parsers
hspec-server library and test: Test Framework for checking server's status
hspec-shouldbe library: Convenience wrapper and utilities for hspec
hspec-slow library and test: Find slow test cases
hspec-smallcheck library and tests: SmallCheck support for the Hspec testing framework
hspec-tables library and test: Table-driven (by-example) HSpec tests
hspec-test-framework library: Run test-framework tests with Hspec
hspec-test-framework-th library and test: Run test-framework tests with Hspec
hspec-test-sandbox library and test: Hspec convenience functions for use with test-sandbox
hspec-wai library and test: Experimental Hspec support for testing WAI applications
hspec-wai-json library and test: Testing JSON APIs with hspec-wai
hspec2 library: Alpha version of Hspec 2.0
hspecVariant library: Spec for testing properties for variant types
hstest program: Runs tests via QuickCheck1 and HUnit; like quickCheck-script but uses GHC api
HTF library, program and tests: The Haskell Test Framework
http-mock library and test: HTTP mocking and expectations library for Haskell
HUnit library and test: A unit testing framework for Haskell
HUnit-approx library and test: Approximate equality for floating point numbers with HUnit
hunit-dejafu library: Deja Fu support for the HUnit test framework.
HUnit-Diff library: Assertions for HUnit with difference reporting
hunit-gui library and program: A GUI testrunner for HUnit
hunit-parsec library: An HUnit Testable instance for Parsec parser unit tests.
HUnit-Plus library and test: A test framework building on HUnit.
hunit-rematch library and test: HUnit support for rematch
inbox library: Inbox for asychronous messages
inspection-proxy program: A simple proxy for debugging plaintext protocols communication
inspection-testing library and tests: GHC plugin to do inspection testing
introduction-test library: A prelude for the tests of safe new projects
IOSpec library: A pure specification of the IO monad.
ivory-eval library and test: Simple concrete evaluator for Ivory programs
ivory-quickcheck library and test: QuickCheck driver for Ivory.
jaeger-flamegraph library, program and test: Generate flamegraphs from Jaeger .json dumps.
json-assertions library: Test that your (Aeson) JSON encoding matches your expectations
keiretsu program: Multi-process orchestration for development and integration testing
KSP library: A library with the kerbal space program universe and demo code
lawz library: Common mathematical laws.
lazy-search library: Finds values satisfying a lazy predicate
lazysmallcheck library: A library for demand-driven testing of Haskell programs
leaky program: Robust space leak, and its strictification
leancheck library and tests: Enumerative property-based testing
leancheck-enum-instances library: listable instances for small enum types
leancheck-instances library and tests: Common LeanCheck instances
linear-tests library and test: Linear Algebra
lipsum-gen library: Generators for random sequences of English-like nonsense text.
loc-test library: Test-related utilities related to the /loc/ package.
lsp-test library, tests and benchmark: Functional test framework for LSP servers.
main-tester library and tests: Capture stdout/stderr/exit code, and replace stdin of your main function.
markov-chain-usage-model library and test: Computations for Markov chain usage models
mattermost-api-qc library: QuickCheck instances for the Mattermost client API library
microspec library: Tiny QuickCheck test library with minimal dependencies
mockazo library and test: Mock records of functions easily
mockery library and test: Support functions for automated testing
monad-mock library and test: A monad transformer for mocking mtl-style typeclasses
MuCheck library and test: Automated Mutation Testing
MuCheck-Hspec library and program: Automated Mutation Testing for Hspec tests
MuCheck-HUnit library and program: Automated Mutation Testing for HUnit tests
MuCheck-QuickCheck library and program: Automated Mutation Testing for QuickCheck tests
MuCheck-SmallCheck library and program: Automated Mutation Testing for SmallCheck tests
mudbath program: Continuous deployment server for use with GitHub
nanospec library and test: A lightweight implementation of a subset of Hspec's API
network-arbitrary library and test: Arbitrary Instances for Network Types
packcheck library, test and benchmark: Universal build and CI testing for Haskell packages
paramtree library and test: Generate labelled test/benchmark trees from sets of parameters
partial-semigroup-hedgehog library: Property testing for partial semigroups using Hedgehog
partial-semigroup-test library: Testing utilities for the partial-semigroup package
pathological-bytestrings library: Pathological ByteStrings for testing
percent-format library and tests: simple printf-style string formatting
polysemy-mocks library and test: Mocking framework for polysemy effects
pqc library and test: Parallel batch driver for QuickCheck
process-sequential library: A test suite for the complex multi files multi level processment.
proctest library and program: An IO library for testing interactive command line programs
prof-flamegraph program: Generate flamegraphs from ghc RTS .prof files
properties library: check quickCheck properties in real time.
property library: common properties
protocol-radius-test library and test: testsuit of protocol-radius haskell package
qc-oi-testgenerator library: Compile time generation of operation invariance tests for QuickCheck
quick-generator library: Generator random test data for QuickCheck
QuickCheck library and tests: Automatic testing of Haskell programs
quickcheck-arbitrary-adt library and test: Generic typeclasses for generating arbitrary ADTs
quickcheck-arbitrary-template library and test: Generate QuickCheck Gen for Sum Types
quickcheck-assertions library and test: HUnit like assertions for QuickCheck
quickcheck-classes library and tests: QuickCheck common typeclasses
quickcheck-classes-base library: QuickCheck common typeclasses from `base`
quickcheck-enum-instances library: arbitrary instances for small enum types
QuickCheck-GenT library: A GenT monad transformer for QuickCheck library.
quickcheck-higherorder library and tests: QuickCheck extension for higher-order properties
quickcheck-instances library, test and benchmark: Common quickcheck instances
quickcheck-io library: Use HUnit assertions as QuickCheck properties
quickcheck-poly library: Automating QuickCheck for polymorphic and overlaoded properties
quickcheck-properties library: QuickCheck properties for standard type classes.
quickcheck-property-comb library: Combinators for Quickcheck Property construction and diagnostics
quickcheck-property-monad library and test: A monad for generating QuickCheck properties without Arbitrary instances.
quickcheck-rematch library and test: QuickCheck support for rematch
quickcheck-report library: Customizable reports for quickcheck properties
QuickCheck-safe library: Safe reimplementation of QuickCheck's core
quickcheck-script program: Automated test tool for QuickCheck.
quickcheck-simple library: Test properties and default-mains for QuickCheck
quickcheck-special library: Edge cases and special values for QuickCheck Arbitrary instances
quickcheck-state-machine library and test: Test monadic programs using state machine based models
quickcheck-state-machine-distributed library and test: Test monadic programs using state machine based models
quickcheck-transformer library: A GenT monad transformer for QuickCheck library.
quickcheck-unicode library: Generator and shrink functions for testing Unicode-related software.
quickcheck-webdriver library: Utilities for using WebDriver with QuickCheck
quickcheck-with-counterexamples library: Get counterexamples from QuickCheck as Haskell values
QuickCheckVariant library and test: Generator of "valid" and "invalid" data in a type class
quickpull library, programs and test: Generate Main module with QuickCheck tests
quickspec library: Equational laws for free!
quicktest program: A reflective batch tester for Haskell.
quokka library and test: Test helpers which help generate data for projects that use postgresql.
sandwich library, programs and test: Yet another test framework for Haskell
sandwich-quickcheck library, program and test: Sandwich integration with QuickCheck
sandwich-slack library, program and test: Sandwich integration with Slack
sandwich-webdriver library, program and test: Sandwich integration with Selenium WebDriver
savage library: re-export of the random generators from Hedgehog
SBench library: A benchmark suite for runtime and heap measurements over a series of inputs.
selenium-server library and test: Run the selenium standalone server for usage with webdriver
servant-mock library, program and test: Derive a mock server for free from your servant API types
shadower program and test: An automated way to run doctests in files that are changing
shelltestrunner program: Easy, repeatable testing of CLI programs/commands
should-not-typecheck library and test: A HUnit/hspec assertion library to verify that an expression does not typecheck
silently library and tests: Prevent or capture writing to stdout and other handles.
silvi library and test: A generator for different kinds of data.
sloth library: Testing for minimal strictness
smallcheck library: A property-based testing library
smallcheck-kind-generics library, test and benchmark: See README for more info
smallcheck-laws library: SmallCheck properties for common laws
smallcheck-lens library: SmallCheck properties for lens
smallcheck-series library and tests: Extra SmallCheck series and utilities
smartcheck library and program: A smarter QuickCheck.
sparsecheck library: A Logic Programming Library for Test-Data Generation
special-values library: Typeclass providing special values
speculate library, tests and benchmark: discovery of properties about Haskell functions
spoonutil library and program: Spoon's utilities. Simple testing and nice looking error reporting.
StrictBench library: Benchmarking code through strict evaluation
StrictCheck library and test: StrictCheck: Keep Your Laziness In Check
stringbuilder library and test: A writer monad for multi-line string literals
sunlight library: Test Cabalized package against multiple dependency versions
swagger-test library and program: Testing of Swagger APIs
sydtest library and tests: A modern testing framework for Haskell with good defaults and advanced testing features.
sydtest-discover library and program: Automatic test suite discovery for sydtest
sydtest-persistent-sqlite library and test: A persistent-sqlite companion library for sydtest
sydtest-servant library and test: A servant companion library for sydtest
sydtest-wai library and test: A wai companion library for sydtest
sydtest-yesod library and tests: A yesod companion library for sydtest
symbiote library and test: Data serialization, communication, and operation verification implementation
system-test library, program and test: Runs system tests of applications.
tao library: Type-level assertion operators.
tao-example library: Example usage of the tao package.
target library, program, test and benchmark: Generate test-suites from refinement types.
tasty library: Modern and extensible testing framework
tasty-ant-xml library: Render tasty output to XML for Jenkins
tasty-auto library, program and test: Auto discovery for Tasty with support for ingredients and test tree generation
tasty-bench library: Featherlight benchmark framework
tasty-checklist library and test: Check multiple items during a tasty test
tasty-dejafu library: Deja Fu support for the Tasty test framework.
tasty-discover library, program and test: Test discovery for the tasty framework.
tasty-expected-failure library and tests: Mark tasty tests as failure expected
tasty-focus library and test: Simple focus mechanism for tasty
tasty-golden library, program and test: Golden tests support for tasty
tasty-grading-system library and test: Grade your tasty-testsuite.
tasty-hedgehog library and test: Integration for tasty and hedgehog.
tasty-hedgehog-coverage library and test: Coverage tracking for Hedgehog Property-Based Testing via Tasty.
tasty-hspec library: Hspec support for the Tasty test framework.
tasty-html library: Render tasty output to HTML
tasty-hunit library: HUnit support for the Tasty test framework.
tasty-hunit-adapter library: Use existing HUnit tests with tasty
tasty-hunit-compat library: Integration of `HUnit` with `tasty`.
tasty-integrate programs and test: automated integration of QuickCheck properties into tasty suites
tasty-jenkins-xml library and tests: Render tasty output to both console and XML for Jenkins
tasty-laws library and test: Test common laws
tasty-leancheck library and test: LeanCheck support for the Tasty test framework.
tasty-lens library and test: Tasty TestTrees for Lens validation
tasty-mgolden library, program and tests: Golden testing provider for tasty with muti-line diff output
tasty-program library: Use tasty framework to test whether a program executes correctly
tasty-quickcheck library and test: QuickCheck support for the Tasty test framework.
tasty-quickcheck-laws library, program and test: Pre-built tasty trees for checking lawful class properties using QuickCheck
tasty-rerun library: Rerun only tests which failed in a previous test run
tasty-silver library and test: A fancy test runner, including support for golden tests.
tasty-smallcheck library: SmallCheck support for the Tasty test framework.
tasty-stats library: Collect statistics of your Tasty testsuite
tasty-sugar library and tests: Tests defined by Search Using Golden Answer References
tasty-tap library and test: TAP (Test Anything Protocol) Version 13 formatter for tasty
tasty-test-reporter library and test: Producing JUnit-style XML test reports.
tasty-test-vector library: Test vector support for tasty.
tasty-th library and test: Automatic tasty test case discovery using TH
tasty-tmux library: Terminal user acceptance testing (UAT) via tmux
tasty-travis library and test: Fancy Travis CI output for tasty tests.
tasty-wai library and test: Test 'wai' endpoints via Test.Tasty
TBC library and program: Testing By Convention
tdd-util library and test: Test framework wrapper
test-framework library and test: Framework for running and organising tests, with HUnit and QuickCheck support
test-framework-doctest library and test: Test.Framework wrapper for DocTest
test-framework-golden library: Golden tests support for test-framework
test-framework-hunit library: HUnit support for the test-framework package.
test-framework-leancheck library and test: LeanCheck support for test-framework.
test-framework-program library: Test framework support for running simple test programs.
test-framework-quickcheck library: QuickCheck support for the test-framework package.
test-framework-quickcheck2 library: QuickCheck-2 support for the test-framework package.
test-framework-sandbox library and test: test-sandbox support for the test-framework package
test-framework-skip library and test: Functions for conveniently marking some of the tests in a suite as being skipped.
test-framework-smallcheck library: Support for SmallCheck tests in test-framework
test-framework-testing-feat library and test: A test framework provider for testing-feat
test-framework-th library: Automagically generate the HUnit- and Quickcheck-bulk-code using Template Haskell.
test-framework-th-prime library: Template Haskell for test framework
test-fun library and test: Testable functions
test-invariant library, test and benchmark: Provide common invariants to be checked with QuickCheck
test-lib library and program: A library to make a quick test-runner script.
test-sandbox library and test: Sandbox for system tests
test-sandbox-compose library, program and test: Lightweight development enviroments using test-sandbox
test-sandbox-hunit library: HUnit convenience functions for use with test-sandbox
test-sandbox-quickcheck library: QuickCheck convenience functions for use with test-sandbox
test-shouldbe library and test: Catchy combinators for HUnit
test-simple library and test: Simple Perl inspired testing
testbench library and program: Create tests and benchmarks together
TestExplode library: Generates testcases from program-snippets
testing-feat library: Functional Enumeration of Algebraic Types
testing-type-modifiers library: Data type modifiers for property based testing
testloop library: Quick feedback loop for test suites
testpack library: Test Utililty Pack for HUnit and QuickCheck (unmaintained)
testrunner library: Easy unit test driver framework
th-test-utils library and test: Utility functions for testing Template Haskell code
timeconsole program: time each line of terminal output
titan program and tests: Testing Infrastructure for Temporal AbstractioNs - GUI to debug temporal programs
titan-debug-yampa library and program: Testing Infrastructure for Temporal AbstractioNs - Interactive Yampa debugging layer.
titan-record-yampa library: Testing Infrastructure for Temporal AbstractioNs - Yampa record-and-replay layer
torch library: Simple unit test library (or framework)
tree-diff library, test and benchmark: Diffing of (expression) trees.
type-assertions library and test: Runtime type assertions for testing
type-spec library and test: Type Level Specification by Example
validity-persistent library: Validity instances for persistent-related types
wai-test library: Unit test framework (built on HUnit) for WAI applications. (deprecated)
webdriver library: a Haskell client for the Selenium WebDriver protocol
webdriver-snoy library and test: a Haskell client for the Selenium WebDriver protocol (deprecated)
webdriver-w3c library, programs and test: Bindings to the WebDriver API
yampa-test library and test: Testing library for Yampa.
yesod-test library and test: integration testing for WAI/Yesod Applications

Testing-hackage

test-pkg library: Just tests Hackage

Text

abnf library and test: Parse ABNF and generate parsers for the specified document
acme-left-pad library: free your haskell from the tyranny of npm!
addy library and test: A full-featured library for parsing, validating, and rendering email addresses
advent-of-code-ocr library, program, test and benchmark: Parse Advent of Code ASCII art letters
aeson library and test: Fast JSON parsing and encoding
aeson-better-errors library: Better error messages when decoding JSON values.
aeson-combinators library, tests and benchmark: Aeson combinators for dead simple JSON decoding
aeson-commit library and test: Parse Aeson data with commitment
aeson-filthy library and test: Several newtypes and combinators for dealing with less-than-cleanly JSON input.
aeson-flatten library and test: JSON flatten for Aeson
aeson-generic-compat library: Compatible generic class names of Aeson
aeson-native library: Fast JSON parsing and encoding (deprecated)
aeson-parsec-picky library: Alternative JSON parser based on Parsec and Aeson
aeson-picker library and test: Tiny library to get fields from JSON format
aeson-prefix library and test: Hiearchical prefixing for aeson
aeson-pretty library and program: JSON pretty-printing library and command-line tool.
aeson-quick library, test and benchmark: Quick JSON extractions with Aeson
aeson-toolkit library and test: A generalization of Aeson over Failure
aeson-typescript library and test: Generate TypeScript definition files from your ADTs
aeson-yaml library, program and test: Output any Aeson value as YAML (pure Haskell library)
AhoCorasick library: Aho-Corasick string matching algorithm
alfred-margaret library and test: Fast Aho-Corasick string searching
align-text program: A simple unix filter to align text on specified substrings
anagrep library, program, test and benchmark: Find strings with permutations (anagrams) that match a regular expression
animalcase library: Convert camelCase to snake_case and vice versa
annotated-wl-pprint library: The Wadler/Leijen Pretty Printer, with annotation support
ansi-pretty library: AnsiPretty for ansi-wl-pprint
ansi-wl-pprint library and program: The Wadler/Leijen Pretty Printer for colored ANSI terminal output
api-opentheory-unicode library and test: OpenTheory unicode character API
arff library: Generate Attribute-Relation File Format (ARFF) files
arpa library and program: Library for reading ARPA n-gram models
arx library and program: Archive execution tool.
ascetic library: Generic markup builder.
ascii library: The ASCII character set and encoding
ascii-case library: ASCII letter case
ascii-char library: A Char type representing an ASCII character
ascii-flatten library and program: Flattens European non-ASCII characaters into ASCII
ascii-group library: ASCII character groups
ascii-predicates library: Various categorizations of ASCII characters
ascii-superset library: Representing ASCII with refined supersets
ascii-th library: Template Haskell support for ASCII
asciichart library and test: Line charts in terminal
asciidiagram library and program: Pretty rendering of Ascii diagram into svg or png.
aspell-pipe library: Pipe-based interface to the Aspell program
atto-lisp library and test: Efficient parsing and serialisation of S-Expressions.
AttoJson library: Simple lightweight JSON parser, generator & manipulator based on ByteString
attoparsec library, test and benchmark: Fast combinator parsing for bytestrings and text
attoparsec-arff library: An ARFF file parser using Attoparsec
attoparsec-csv library: A parser for CSV files that uses Attoparsec
attoparsec-enumerator library: Pass input from an enumerator to an Attoparsec parser.
attoparsec-expr library: Port of parsec's expression parser to attoparsec.
attoparsec-text library: (deprecated)
attoparsec-text-enumerator library: (deprecated)
augur program: Renaming media collections in a breeze.
authoring library: A library for writing papers
base-encoding library: Binary-to-text encodings (e.g. base64)
beautifHOL program: A pretty-printer for higher-order logic
bencode library and test: Parsers and printers for bencoded data.
betacode library and test: A codec for beta code (http://en.wikipedia.org/wiki/Beta_Code).
bibdb program: A database based bibliography manager for BibTeX
bibtex library and programs: Parse, format and processing BibTeX files
blaze-from-html program: Tool to convert HTML to BlazeHtml code.
blaze-html library and test: A blazingly fast HTML combinator library for Haskell
blaze-html-hexpat library: A hexpat backend for blaze-html.
blaze-html-truncate library: A truncator for blaze-html
blaze-json library and tests: tiny library for encoding json
blaze-markup library and test: A blazingly fast markup combinator library for Haskell
blaze-textual library and test: Fast rendering of common datatypes
blaze-textual-native library: Fast rendering of common datatypes (deprecated)
blazeT library: A true monad (transformer) version of the blaze-markup and blaze-html libraries
BluePrintCSS library: Html document layout library.
BNFC-meta library: Deriving Parsers and Quasi-Quoters from BNF Grammars
Bookshelf program and test: A simple document organizer with some wiki functionality
boomerang library: Library for invertible parsing and printing
boxes library and test: 2D text pretty-printing library
Bravo library: Static text template generation library
byte-count-reader library and test: Read strings describing a number of bytes like 2Kb and 0.5 MiB
bytestring-encoding library and test: ByteString ↔ Text converter based on GHC.IO.Encoding
bytestring-nums library and program: Parse numeric literals from ByteStrings.
bytestring-short library and test: Backport copy of ShortByteString
bytestring-show library: Efficient conversion of values into readable byte strings.
bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
bytestringparser library: Combinator parsing with Data.ByteString.Lazy
bytestringparser-temporary library: Combinator parsing with Data.ByteString.Lazy
bytestringreadp library: A ReadP style parser library for ByteString
canonical-json library, test and benchmark: Canonical JSON for signing and hashing JSON values
case-conversion library, program and test: Convert between different cases
case-insensitive library, test and benchmark: Case insensitive string comparison
case-insensitive-match library, program, test and benchmarks: A simplified, faster way to do case-insensitive matching.
cased library: Track string casing in its type
cases library, test and benchmark: A converter for spinal, snake and camel cases
casing library and test: Convert between various source code casing conventions
Cassava library and test: A CSV parsing and encoding library
cassava library and test: A CSV parsing and encoding library
cassava-embed library and program: CSV-file embedding library
cassava-megaparsec library and test: Megaparsec parser of CSV files that plays nicely with Cassava
cassava-records library and test: Auto-generation of records data type.
cassava-streams library, program and test: io-streams interface for the cassava CSV library.
cassette library: A combinator library for simultaneously defining parsers and pretty printers.
category-printf library: Highbrow approach to type-safe printf format specifications.
cedict library and program: Convenient Chinese phrase & character lookup.
celtchar library, program and test: A tool to build a novel
cereal-enumerator library: Deserialize things with cereal and enumerator
change-monger library and program: Parse VCS changelogs into ChangeLogs
char-decode library and test: Convert legacy byte encodings to and from Unicode
charsetdetect library: Character set detection using Mozilla's Universal Character Set Detector
charsetdetect-ae library: Character set detection using Mozilla's Universal Character Set Detector
chatty library: Some monad transformers and typeclasses for text in- and output abstraction.
chatty-text library: Provides some classes and types for dealing with text, using the fundaments of Chatty.
cheapskate library and programs: Experimental markdown processor.
cheapskate-highlight library: Code highlighting for cheapskate
chronologique library and tests: Time to manipulate time
chunks library: Simple template library with static safety
cirru-parser library: Cirru Parser in Haskell
CirruParser library: Cirru Parser in Haskell
citation-resolve library and tests: convert document IDs such as DOI, ISBN, arXiv ID to bibliographic reference.
citeproc library, program and test: Generates citations and bibliography from CSL styles.
citeproc-hs library: A Citation Style Language implementation in Haskell
citeproc-hs-pandoc-filter program: A Pandoc filter for processing bibliographic references with citeproc-hs
cjk library and test: Data about Chinese, Japanese and Korean characters and languages
cld2 library: Haskell bindings to Google's Compact Language Detector 2
cless program: Colorized LESS
clevercss library and program: A CSS preprocessor
clippings library, program and test: A parser/generator for Kindle-format clipping files (`My Clippings.txt`),
clogparse library: Parse IRC logs such as the #haskell logs on tunes.org
cmark library, test and benchmark: Fast, accurate CommonMark (Markdown) parser and renderer
cmark-gfm library, test and benchmark: Fast, accurate GitHub Flavored Markdown parser and renderer
cmark-highlight library: Code highlighting for cmark
cmark-patterns library: Pattern synonyms for cmark
cmark-sections library and test: Represent cmark-parsed Markdown as a tree of sections
colorful-monoids library and test: Styled console text output using ANSI escape sequences.
columnar library: A CSV toolkit based on cassava and enum-text
comark library and program: Commonmark processing in pure haskell.
comark-html library, program, test and benchmark: Commonmark (markdown) to HTML renderer.
comark-parser library, test and benchmark: Parser for Commonmark (markdown)
comark-syntax library: Definitions of AST that represents a Commonmark (markdown) document.
comma library and test: CSV Parser & Producer
commander library, program and test: pattern matching against string based commands
commonmark library, test and benchmark: Pure Haskell commonmark parser.
commonmark-cli program: Command-line commonmark converter and highlighter.
commonmark-extensions library, test and benchmark: Pure Haskell commonmark parser.
commonmark-pandoc library: Bridge between commonmark and pandoc AST.
compdoc library: Parse a Pandoc to a composite value.
composite-aeson-cofree-list library: Print a Cofree [] as a JSON value.
composite-aeson-throw library: MonadThrow behaviour for composite-aeson.
composite-aeson-writeonly library: WriteOnly indicators for composite-aeson.
Condor library, program and test: Information retrieval library
condor library, program and test: Information retrieval library
conduit-iconv library, test and benchmark: Conduit for character encoding conversion.
conduit-parse library and tests: Parsing framework based on conduit.
config-parser library and test: Parse config files using parsec and generate parse errors on unhandled keys
connection-string library and test: A library for parsing connection strings.
console-style library: Styled console text output using ANSI escape sequences.
countable-inflections library and test: Countable Text Inflections
crc16-table library: Compute CRC16 checksums using a lookup table.
cron library, test and benchmark: Cron datatypes and Attoparsec parser
cron-compat library and test: Cron datatypes and Attoparsec parser
csv library: CSV loader and dumper
csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
csv-nptools programs: A collection of CSV tools
csv-to-qif program and test: A small program that will read csv files and create qif files
ctemplate library: Binding to the Google ctemplate library
ctkl library: packaging of Manuel Chakravarty's CTK Light for Hackage
ctpl library and programs: A programming language for text modification.
curly-expander library and tests: Curly braces (brackets) expanding
data-base library: ...
data-construction library: Data construction abstractions including Constructor, Destructor, Maker, ...
data-layer library: Data layering utilities. Layer is a data-type which wrapps other one, ...
data-object-json library: Serialize JSON data to/from Haskell using the data-object library. (deprecated)
data-pprint library: Prettyprint and compare Data values
data-repr library: Alternative to Show data printing utility.
data-result library: Data types for returning results distinguishable by types.
data-rtuple library: ...
data-textual library and test: Human-friendly textual representations.
deburr library and test: Convert Unicode characters with burrs to their ASCII counterparts.
decode-utf8 program: Decode a UTF-8 byte stream on standard input
derp-lib library: combinators based on parsing with derivatives (derp) package
detrospector program: Markov chain text generator
diagrams-pandoc library and program: A Pandoc filter to express diagrams inline using the Haskell EDSL _Diagrams_
dice2tex program: Convert a Diceware wordlist into a printer-ready LaTeX file.
dictionaries library, program and test: Tools to handle StarDict dictionaries.
directory-listing-webpage-parser library: directory listing webpage parser
discount library: Haskell bindings to the discount Markdown library.
display library: Display things for humans to read
doclayout library, test and benchmark: A prettyprinting library for laying out text documents.
doctemplates library, test and benchmark: Pandoc-style document templates
domplate library: A simple templating library using HTML5 as its template language.
dotgen library and program: A simple interface for building .dot graph files.
double-conversion library and test: Fast conversion between double precision floating point and text
dsv library and test: DSV (delimiter-separated values)
dtd library: Parse and render DTD files (deprecated)
dtd-text library: Parse and render XML DTDs
dtd-types library: Basic types for representing XML DTDs
dynamic-pp library and test: ...
easyjson library: Haskell JSON library with an emphasis on simplicity, minimal dependencies, ...
ebnf-bff library and program: Parser combinators & EBNF, BFFs!
ede library, program and test: Templating language with similar syntax and features to Liquid or Jinja2.
editor-open library and programs: Open the user's $VISUAL or $EDITOR for text input.
ehaskell program: like eruby, ehaskell is embedded haskell.
ehs library and program: Embedded haskell template using quasiquotes.
email-validate library and tests: Email address validation
emailaddress library and test: Wrapper around email-validate library adding instances for common type classes.
emojis library and test: Conversion between emoji characters and their names.
Encode library and programs: Encoding character data
encode-string library and test: Safe string conversion and encoding
enum-text library: A text rendering and parsing toolkit for enumerated types
enum-utf8 library: An experimental Utf8 parsing toolkit for enumerated types
epub library and program: EPUB E-Book construction support library
epub-metadata library, program and test: Library for parsing epub document metadata
eros library: A text censorship library.
eros-client program: DEPRECATED in favor of eros-http
eros-http program: JSON HTTP interface to Eros.
ert library and program: Easy Runtime Templates
escape-artist library and tests: ANSI Escape Sequence Text Decoration Made Easy
escaped library, program and tests: Produce Text with terminal escape sequences
expand library: Extensible Pandoc
expat-enumerator library: Enumerator-based API for Expat
expression-parser library: Generalization of parsec's expression parser.
fastedit library and test: find nearest neighbours by edit-distance
fay-text library: Fay Text type represented as JavaScript strings
feed library and tests: Interfacing with RSS (v 0.9x, 2.x, 1.0) + Atom feeds.
feed-cli program: A simple command line interface for creating and updating feeds like RSS
feed-crawl library: Utility for fetching feeds with redirect info and HTML link detection
fillit library and tests: Flexible string substitution
final-pretty-printer library: Extensible pretty printing with semantic annotations and proportional fonts
fix-symbols-gitit library: Gitit plugin: Turn some Haskell symbols into pretty math symbols.
fix-whitespace program: Fixes whitespace issues.
fixedwidth-hs library and program: Quick parsing of fixed-width data formats.
fixhs library and program: FIX (co)parser
flamethrower library: A template engine for HTML
flat-tex program: flatten a latex multi-file latex document and remove all comments
Flippi program: Wiki
floatshow library: Alternative faster String representations for Double and Float, ...
fluffy-parser library: The parser for fluffy to parsec the question bank in .docx type
fmt library, tests and benchmark: A new formatting library
fmt-for-rio library: Adaptor for getting fmt to work with rio
fmt-terminal-colors library and test: ANSI terminal colors formatters for fmt library
focuslist library, program and tests: Lists with a focused element
folgerhs library and program: Toolset for Folger Shakespeare Library's XML annotated plays
FontyFruity library: A true type file format loader
forger library and program: Library for generating fake placeholder data
format library and test: Rendering from and scanning to format strings
formattable library and test: Business-quality formatting of numbers, dates, and other things
formatting library, test and benchmark: Combinator-based type-safe formatting (like printf() or FORMAT)
formlets library: Formlets implemented in Haskell
formlets-hsp library: HSP support for Formlets
freq library, test and benchmark: Are you ready to get freaky?
frisby library: Linear time composable parser for PEG grammars
fromhtml library and program: Simple adapter for transformation of HTML to other formats
frquotes library and program: Lexical extension for Quasi-Quotations using French-Quotes
full-text-search library, program and test: In-memory full text search engine
funnyprint library, test and benchmark: funnyPrint function to colorize GHCi output.
fuzzy library and test: Filters a list based on a fuzzy string search.
fuzzy-parse library and test: Tools for processing unstructured text data
fuzzyfind library, program and test: Fuzzy text matching
generic-pretty library and test: Pretty printing for Generic value
GenericPretty library: A generic, derivable, haskell pretty printer.
gentlemark library and test: Gentle markup language
GGg program: GGg cipher
ghc-syntax-highlighter library and test: Syntax highlighter for Haskell using lexer of GHC itself
ginger library, program and test: An implementation of the Jinja2 template language in Haskell
glabrous library and test: A template DSL library
glaze library: Framework for rendering things with metadata/headers and values
glider-nlp library and test: Natural Language Processing library
gnuidn library and test: Bindings for GNU IDN
google-isbn library
google-search library: EDSL for Google and GMail search expressions
GoogleCodeJam library: ...
googlepolyline library and test: Google Polyline Encoder/Decoder
grab-form library and test: Applicative parsers for form parameter lists
grammatical-parsers library, programs, tests and benchmark: parsers that combine into grammars
graphtype program: A simple tool to illustrate dependencies between Haskell types
groom library and program: Pretty printing for well-behaved Show instances.
hack-contrib-press library: Hack helper that renders Press templates
haiji library and tests: A typed template engine, subset of jinja2
hako library and test: A mako-like quasi-quoter template library
hakyll-alectryon library: Hakyll extension for rendering Coq code using Alectryon
halipeto library: Haskell Static Web Page Generator
han2zen library and test: Convert Halfwidth Katakana to Fullwidth Katakana.
HandsomeSoup library, program and test: Work with HTML more easily in HXT
haphviz library and test: Graphviz code generation with Haskell
haskell-conll library: Core Types for NLP
haskell-gettext library and program: GetText runtime library implementation in pure Haskell
haskell-say library and program: Let the Haskell logo talk to your users!
hasmin library, program, tests and benchmark: CSS Minifier
hastache library, program and test: Haskell implementation of Mustache templates
hastache-aeson library: render hastache templates using aeson values
HaTeX-meta program: This package is deprecated. From version 3, HaTeX does not need this anymore.
HaTeX-qq library: Quasiquoters for HaTeX
HaXml library and programs: Utilities for manipulating XML documents
Hayoo programs: The Hayoo! search engine for Haskell API search on hackage
hdiscount library: Haskell bindings to the Discount markdown library
heckin library and test: Oh heck, it's a heckin' case conversion library.
hello program: Hello World, an example package
heredoc library: multi-line string / here document using QuasiQuotes
heredocs library and test: Heredocument on Haskell
hex-text library and test: ByteString-Text hexidecimal conversions
HExcel library: Create Excel files with Haskell
hexdump library: A library for forming hexdumps.
hformat library and test: Simple Haskell formatting
hgeos library and test: Simple Haskell bindings to GEOS C API
hgettext library and program: Bindings to libintl.h (gettext, bindtextdomain)
highjson library, test and benchmark: Spec based JSON parsing/serialisation
highjson-swagger library and test: Derive swagger instances from highjson specs
highjson-th library and test: Template Haskell helpers for highjson specs
highlight library, programs, tests and benchmark: Command line tool for highlighting parts of files matching a regex.
highlighter library and program: source code highlighting
highlighter2 library and program: source code highlighting
highlighting-kate library, program and test: Syntax highlighting
hjpath library: XPath-like syntax for querying JSON
hjson library: JSON parsing library
hjson-query library: library for querying from JSON
hlatex library and program: A library to build valid LaTeX files
hmark library and program: A tool and library for Markov chains based text generation.
HMarkov library and test: Markov-generated sequences
hOff-parser library: The parser to parser the OFF(Object File Format, Princeton ModelNet).
Holumbus-Searchengine library: A search and indexing engine.
hoodle-builder library: text builder for hoodle file format
hoodle-parser library: Hoodle file parser
HPath library and program: Extract Haskell declarations by name.
HPhone library and test: Phone number parser and validator - This is now DEPRECATED!
hprotoc library and program: Parse Google Protocol Buffer specifications
hprotoc-fork library and program: Parse Google Protocol Buffer specifications
hpygments library: Highlight source code using Pygments
hpyrg program: pyrg utility done right
hs-bibutils library: Haskell bindings to bibutils, the bibliography conversion utilities.
hs-openmoji-data library and program: The OpenMoji emoji dataset
hs-vcard library: Implements the RFC 2426 vCard 3.0 spec
hsass library and test: Integrating Sass into Haskell applications.
hschema-prettyprinter library: Describe schemas for your Haskell data types.
HsHyperEstraier library: HyperEstraier binding for Haskell
HSmarty library and test: Small template engine
HsSyck library: Fast, lightweight YAML loader and dumper
hstidy program: Takes haskell source on stdin, parses it, then prettyprints it to stdout.
HStringTemplate library: StringTemplate implementation in Haskell.
HStringTemplateHelpers library: Convenience functions and instances for HStringTemplate
HsYAML library, program and test: Pure Haskell YAML 1.2 processor
HsYAML-aeson library: JSON to YAML Adapter
html-conduit library and test: Parse HTML documents using xml-conduit datatypes.
html-email-validate library, test and benchmark: Validating an email address against HTML standard
html-entity library, program and test: HTML entity decoding and encoding for Text
html-minimalist library: Minimalist haskell html library
html-parse library, test and benchmark: A high-performance HTML tokenizer
html-rules library: Perform traversals of HTML structures using sets of rules.
html-truncate library: A HTML truncator
html2hamlet program: HTML to Hamlet converter
html5-entity library, program and benchmark: A library for looking up and validating HTML5 entities.
htoml library, test and benchmark: Parser for TOML files
htoml-megaparsec library, test and benchmark: Parser for TOML files
human-parse library: A lawless typeclass for parsing text entered by humans.
human-text library: A lawless typeclass for converting values to human-friendly text.
hunt-searchengine library and tests: A search and indexing engine.
hunt-server program: A search and indexing engine server.
hw-dsv library, program, tests and benchmark: Unbelievably fast streaming DSV file parser
hxt-charproperties library: Character properties and classes for XML and Unicode
hxt-regex-xmlschema library, tests and benchmark: A regular expression library for W3C XML Schema regular expressions
hxt-unicode library: Unicode en-/decoding functions for utf8, iso-latin-* and other encodings
hyphenate library: Text hyphenation algorithm
hyphenation library: Configurable Knuth-Liang hyphenation
hzenhan library and test: Zenhan library for Haskell
i18n library and test: Internationalization for Haskell
iCalendar library: iCalendar data types, parser, and printer.
iconv library: String encoding conversion
idiii library, program and test: ID3v2 (tagging standard for MP3 files) library
idna library: Implements IDNA (RFC 3490).
illuminate library and program: A fast syntax highlighting library built with alex.
imbib programs: Minimalistic reference manager.
imparse library and program: Multi-platform parser analyzer and generator.
indent library and program: Fix your indentation.
indentparser library and program: A parser for indentation based structures
indents library and test: indentation sensitive parser-combinators for parsec
inflections library and test: Inflections library for Haskell
inject library, program and test: A minimalistic template engine
inserts library: Stupid simple bytestring templates.
interp library, program and test: Tracery-like randomized text interpolation
interpolate library and test: String interpolation done right
Interpolation library: Multiline strings, interpolation and templating.
Interpolation-maxs library: Multiline strings, interpolation and templating.
IntFormats library and test: Convert integers in various bases to and from strings
invertible-syntax library: Invertible syntax descriptions for both parsing and pretty printing.
ipprint library: Tiny helper for pretty-printing values in ghci console
iptables-helpers library and program: iptables rules parser/printer library
ipynb library and test: Data structure for working with Jupyter notebooks (ipynb).
irc-colors library: Colourize your IRC strings
jira-wiki-markup library, program and test: Handle Jira wiki markup
json-b library and program: JSON parser that uses byte strings.
json-litobj library and test: Extends Text.JSON to handle literal JS objects.
json-stream library and tests: Incremental applicative JSON parser
json-tools programs: A collection of JSON tools
json-types library: Basic types for representing JSON
json2 library: Library provides support for JSON.
json2-types library: Defined JSON data types and function for renders JSON to string.
json5hs library: Serialising to and from JSON5
JSONb library and program: JSON parser that uses byte strings.
JSONParser library: Parse JSON
jsonpath library and test: Library to parse and execute JSONPath
jsonresume library: Parser and datatypes for the JSON Resume format
jsonschema-gen library and test: JSON Schema generator from Algebraic data type
jsonsql program: Interpolate JSON object values into SQL strings
jsontsv program: JSON to TSV transformer
jsonxlsx program: json to xlsx converter
jspath library: Extract substructures from JSON by following a path.
JustParse library: A simple and comprehensive Haskell parsing library
karver library and test: A simple template engine, inspired by jinja2
katip library, test and benchmark: A structured logging framework.
katip-datadog library and test: Datadog scribe for the Katip logging framework
katip-elasticsearch library, test and benchmark: ElasticSearch scribe for the Katip logging framework.
katip-logzio library and test: Logz.IO scribe for the Katip logging framework
kcd library and test: Kayak .kcd parsing library.
kickass-torrents-dump-parser library and test: Parses kat.ph torrent dumps
knit-haskell library and tests: a minimal Rmarkdown sort-of-thing for haskell, by way of Pandoc
koellner-phonetic library and test: "map German words to code representing pronunciation"
Konf library: A configuration language and a parser.
kparams library, program and test: Extracts values from /proc/cmdline.
kvitable library and test: Key/Value Indexed Table container and formatting library
l10n library: Enables providing localization as typeclass instances in separate files.
lambda-options library: Declarative command-line parser with type-driven pattern matching.
lambdatex library and test: Type-Safe LaTeX EDSL
language-dickinson library, program, test and benchmark: A language for generative literature
language-gemini library: Datatypes and parsing/printing functions to represent the Gemini markup language
latex library: Parse, format and process LaTeX files
latex-function-tables library, program and test: Function table specifications in latex
layout library: Turn values into pretty text or markup
layout-bootstrap library: Template and widgets for Bootstrap2 to use with Text.Blaze.Html5
lazy-csv library and program: Efficient lazy parsers for CSV (comma-separated values).
ldapply program: LDIF idempotent apply tool
ldif library, programs and test: The LDAP Data Interchange Format (LDIF) tools
leetify program: Leetify text
lens-regex library, program and test: Lens powered regular expression
lens-text-encoding library: Isomorphisms and prisms for text <=> bytestring conversions
lex-applicative library, test and benchmark: See README for more info
liboleg library: An evolving collection of Oleg Kiselyov's Haskell modules
libxml-enumerator library: Enumerator-based API for libXML's SAX interface
libxml-sax library: Bindings for the libXML2 SAX interface
libxslt library: Binding to libxslt
libyaml library: Low-level, streaming YAML interface.
ligature library: Expand ligatures in unicode text
line-break program: Convert newlines in text
line2pdf library and program: Simple command-line utility to convert text into PDF
linebreak library: breaks strings to fit width
linguistic-ordinals library: Express Integral types as linguistic ordinals (1st, 2nd, 3rd, etc)
lipsum-gen library: Generators for random sequences of English-like nonsense text.
ListLike library and test: Generalized support for list-like structures
llvm-pretty library: A pretty printing library inspired by the llvm binding.
llvm-pretty-bc-parser library, programs and test: LLVM bitcode parsing library
localize library: GNU Gettext-based messages localization library
log2json library and program: Turn log file records into JSON.
logger-thread library and program: Run FastLogger in a thread and direct all queued messages to it.
logplex-parse library and test: Parse Heroku application/logplex documents
lorem library and program: Library for generating filler text
ltext library, program and test: Parameterized file evaluator
luthor library and tests: Tools for lexing and utilizing lexemes that integrate with Parsec.
maccatcher library and program: Obtain the host MAC address on *NIX and Windows.
machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
machines-encoding library: Transcode encodings with machines.
madlang library, program, test and benchmark: Randomized templating language DSL
magic library: Interface to C file/magic library
mainland-pretty library: Pretty printing designed for printing source code.
markdown-pap library: markdown parser with papillon
markdown2svg program: markdown to svg converter
marked-pretty library and test: Pretty-printing library, with scoping, based on pretty.
markup-preview program: A simple markup document preview (markdown, textile, reStructuredText)
marvin-interpolate library and test: Compile time string interpolation a la Scala and CoffeeScript
marxup library and programs: Markup language preprocessor for Haskell
mbox library: Read and write standard mailbox files.
mcm programs: Machine Configuration Manager
mdcat library and program: Markdown viewer in your terminal
mediawiki2latex program: Convert MediaWiki text to LaTeX
metadata library: metadata library for semantic web
microaeson library and test: A tiny JSON library with light dependency footprint
microstache library and tests: Mustache templates for Haskell
mime-directory library: A library for parsing/printing the text/directory mime type.
mmark library, test and benchmarks: Strict markdown processor for writers
mmark-cli program: Command line interface to the MMark markdown processor
mmark-ext library and test: Commonly useful extensions for the MMark markdown processor
modern-uri library, test and benchmarks: Modern library for working with URIs
MoeDict library: Utilities working with MoeDict.tw JSON dataset
monoid-subclasses library and test: Subclasses of Monoid
MorseCode library: Morse code
mplayer-spot library and program: Save your spot when watching movies with @mplayer@.
mpppc library: Multi-dimensional parametric pretty-printer with color
mpretty library: a monadic, extensible pretty printing library
multifile program: create many files from one
musicxml library: MusicXML format encoded as Haskell type and functions of reading and writting.
mustache-haskell library and program: Straight implementation of mustache templates
NameGenerator library: A name generator written in Haskell
namelist library and test: fortran90 namelist parser/pretty printer
nanoparsec library: An implementation of attoparsec-like parser around list-like
naturalcomp library: Natural-order string comparison
NaturalSort programs: Natural sorting for strings
neat library and program: A Fast Retargetable Template Engine
nicify program: Pretty print the standard output of default `Show` instances.
nicify-lib library: Pretty print the standard output of default `Show` instances.
nme library: Bindings to the Nyctergatis Markup Engine
nmis-parser library and test: NMIS file parser
noise library, program and test: A friendly language for graphic design
non-empty-text library and tests: Non empty Data.Text type
normalization-insensitive library, test and benchmark: Normalization insensitive string comparison
nowdoc library and test: Here document without variable expansion like PHP Nowdoc
nptools programs: A collection of random tools
number-show library: Flexible and accurate (for a given precision) numerical->string conversion
numerals library, test and benchmark: Convert numbers to number words
numerals-base library and test: Convert numbers to number words
omaketex program: A simple tool to generate OMakefile for latex files.
onama library: HTML-parsing primitives for Parsec.
one-line-aeson-text library and test: Pretty-printing short Aeson values as text.
open-pandoc programs: Conversion between markup formats
opentheory-char library and program: Unicode characters
opentheory-unicode library and test: Unicode characters
opml library: Representing and handling OPML subscription information.
opml-conduit library and tests: Streaming parser/renderer for the OPML 2.0 format.
oso2pdf programs: Better conversion of Oxford Scholarship Online material to PDF
ot library and test: Real-time collaborative editing with Operational Transformation
ottparse-pretty program: Pretty-printer for Ott parse trees
PageIO library and program: Page-oriented extraction and composition library
pager library and program: Open up a pager, like 'less' or 'more'
paint library and programs: Colorization of text for command-line output
pandoc library, programs, test and benchmark: Conversion between markup formats
pandoc-citeproc library, programs and test: Supports using pandoc with citeproc
pandoc-citeproc-preamble program: Insert a preamble before pandoc-citeproc's bibliography
pandoc-crossref library, program and tests: Pandoc filter for cross-references
pandoc-csv2table library and program: Convert CSV to Pandoc Table Markdown
pandoc-filter-graphviz program: A Pandoc filter to use graphviz
pandoc-filter-indent library, program and test: Pandoc filter formatting Haskell code fragments using GHC lexer.
pandoc-highlighting-extensions library: Syntax highlighting customization for Pandoc
pandoc-include library and program: Include other Markdown files
pandoc-japanese-filters programs: Japanese-specific markup filters for pandoc.
pandoc-lens library: Lenses for Pandoc documents
pandoc-link-context library: Extract "contextual links" from Pandoc
pandoc-markdown-ghci-filter library, program and test: Pandoc-filter to evaluate `code` section in markdown and auto-embed output.
pandoc-placetable program: Pandoc filter to include CSV files
pandoc-plantuml-diagrams library, program and test: Render and insert PlantUML diagrams with Pandoc
pandoc-plot library, program, test and benchmark: ...
pandoc-stylefrommeta program: Pandoc filter to customize links, images and paragraphs
pandoc-throw library: MonadThrow behaviour for Pandoc.
pandoc-types library, test and benchmark: Types for representing a structured document
pandoc-utils library and test: Utility functions to work with Pandoc in Haskell applications.
pandoc-vimhl program: Pandoc filter for native Vim code highlighting
panhandle library, program and test: Pandoc filter to unwrap nested blocks
panpipe library, program and test: Pandoc filter to execute code blocks
pappy program: Packrat parsing; linear-time parsers for grammars in TDPL.
para library: Text paragraph formatting
parcom-lib library: A simple parser-combinator library, a bit like Parsec but without the frills
paripari library, programs and test: Parser combinators with fast-path and slower fallback for error reporting
parsec-class library: Class of types that can be constructed from their text representation
parsec-free library: Parsec API encoded as a deeply-embedded DSL, for debugging and analysis
parsec-parsers library and test: Parsing instances for Parsec
parsec-pratt library and program: Pratt Parser combinator for Parsec
parseerror-eq library and test: Adds and Eq instance for Parsec's ParseError if needed
parsers library and test: Parsing combinators
parsers-megaparsec library: `parsers` instances for Megaparsec
patat library, programs and test: Terminal-based presentations using Pandoc
path-text-utf8 library: Read and write UTF-8 text files
patience library: Patience diff and longest increasing subsequence
pattern-arrows library: Arrows for Pretty Printing
PCLT library: Extension to Show: templating, catalogizing, languages, parameters, etc.
pcre-less library: Nicer interface to regex-pcre.
pcre-light library and test: Portable regex library for Perl 5 compatible regular expressions
pcre-light-extra library: pcre-light extra functionality
pcre-utils library and tests: Perl-like substitute and split for PCRE regexps.
pcre2 library, test and benchmark: Regular expressions via the PCRE2 C library (included)
pdf2line programs: Simple command-line utility to convert PDF into text
pdfinfo library: Wrapper around the pdfinfo command.
pdftotext library, program and test: Extracts text from PDF using poppler
period library, program and test: Parse and format date periods, collapse and expand their text representations.
phaser library and test: Incremental multiple pass parser library.
phonetic-code library: Phonetic codes: Soundex and Phonix
picoparsec library, test and benchmark: Fast combinator parsing for bytestrings and text
pipeclip program: Open your editor, pipe the output to the system clipboard
pipes-key-value-csv library and test: Streaming processing of CSV files preceded by key-value pairs.
pipes-text library: properly streaming text
plat library: Simple templating library
playlists library, program and test: Library and executable for working with playlist files.
playlists-http library and program: Library to glue together playlists and http-client
polyparse library: A variety of alternative parser combinator libraries.
portable-lines library: Alternative 'lines' implementation that understands CR-LF and CR
pprecord library: A library for pretty printing Records
PPrinter library: A generic derivable Haskell pretty printer
pptable library and tests: Pretty Print containers in a tabular format
pragmatic-show library and test: Alternative Show class that gives shorter view if possible.
prefix-expression library and test
press library: Text template library targeted at the web / HTML generation
prettify library: Haskell2010 structured text formatting
pretty library, test and benchmark: Pretty-printing library
pretty-class library: Pretty printing class similar to Show.
pretty-compact library and benchmark: Pretty-printing library
pretty-display library, program and test: Typeclass for human-readable display
pretty-ghci library, program and tests: Functionality for beautifying GHCi
pretty-loc library: Tracking and highlighting of locations in source files
pretty-ncols library: A implementation of multi-column layout w/ Text.PrettyPrint
pretty-show library and program: Tools for working with derived `Show` instances and generic inspection of values.
pretty-show-ansi-wl library: Like pretty-show, but only for ansi-wl-pprint
pretty-simple library, programs, test and benchmark: pretty printer for data types with a 'Show' instance.
pretty-types library and test: A small pretty printing DSL for complex types.
prettyclass library: Pretty printing class similar to Show.
prettyprinter library, program, tests and benchmarks: A modern, easy to use, well-documented, extensible pretty-printer.
prettyprinter-ansi-terminal library, test and benchmark: ANSI terminal backend for the »prettyprinter« package.
prettyprinter-compat-annotated-wl-pprint library: Drop-in compatibility package to migrate from »annotated-wl-pprint« to »prettyprinter«.
prettyprinter-compat-ansi-wl-pprint library: Drop-in compatibility package to migrate from »ansi-wl-pprint« to »prettyprinter«.
prettyprinter-compat-wl-pprint library: Prettyprinter compatibility module for previous users of the wl-pprint package.
prettyprinter-convert-ansi-wl-pprint library and test: Converter from »ansi-wl-pprint« documents to »prettyprinter«-based ones.
printf-mauke library: A Perl printf like formatter.
printf-safe library: Type safe interface for Text.Printf
prints library: The Artist Formerly Known as Prints
pronounce library: A library for interfacing with the CMU Pronouncing Dictionary
protocol-buffers library: Parse Google Protocol Buffer specifications
protocol-buffers-descriptor library: ...
protocol-buffers-descriptor-fork library: ...
protocol-buffers-fork library: Parse Google Protocol Buffer specifications
publish programs and test: Publishing tools for papers, books, and presentations
pugixml library and test: pugixml binding.
pugs-hsregex library: Haskell PCRE binding
pugs-HsSyck library: Fast, lightweight YAML loader and dumper
punkt library and test: Multilingual unsupervised sentence tokenization with Punkt.
punycode library and test: Encode unicode strings to ascii forms according to RFC 3492
PyF library and tests: Quasiquotations for a python like interpolated string formater
QuasiText library: A QuasiQuoter for Text.
quickcheck-text library and test: Alternative arbitrary instance for Text
quickcheck-unicode library: Generator and shrink functions for testing Unicode-related software.
Quickson library: Quick JSON extractions with Aeson
quickson library: Quick JSON extractions with Aeson
R-pandoc library and program
random-strings library, program and tests: Generate random strings with specific qualities
rating-systems library: Implementations of several rating systems: Elo, Glicko, etc
raw-strings-qq library and test: Raw string literals for Haskell.
rawstring-qm library: Simple raw string quotation and dictionary interpolation
razom-text-util library and test: Common text/parsing tools for Razom language packages.
read-bounded library: Class for reading bounded values
readability library and program: Extracts text of main article from HTML document
readable library: Reading from Text and ByteString
reformat library: The parser and render to parsec and render the string.
regex library: Toolkit for regex-base
regex-applicative library, test and benchmark: Regex-based parsing with applicative interface
regex-applicative-text library: regex-applicative on text
regex-base library: Common "Text.Regex.*" API for Regex matching
regex-compat library: Replaces/enhances "Text.Regex"
regex-compat-tdfa library: Unicode Support version of Text.Regex, using regex-tdfa
regex-deriv library: ...
regex-dfa library: Replaces/Enhances Text.Regex
regex-examples programs and tests: Tutorial, tests and example programs for regex
regex-generator library and test: Generate a random string from a PCRE
regex-genex library and program: From a regex, generate all possible strings it can match
regex-parsec library: Replaces/Enhances Text.Regex
regex-pcre library: PCRE Backend for "Text.Regex" (regex-base)
regex-pcre-builtin library: PCRE Backend for "Text.Regex" (regex-base)
regex-pcre-text library: Text-based PCRE API for regex-base
regex-pderiv library: ...
regex-posix library: POSIX Backend for "Text.Regex" (regex-base)
regex-posix-clib library: "Regex for Windows" C library
regex-posix-unittest program: Unit tests for the plaform's Posix regex library
regex-tdfa library and test: Pure Haskell Tagged DFA Backend for "Text.Regex" (regex-base)
regex-tdfa-pipes library: Parse with regular expressions on Producers.
regex-tdfa-quasiquoter library: Quasi-quoter for TDFA (extended POSIX) regular expressions.
regex-tdfa-rc library: Replaces/Enhances Text.Regex
regex-tdfa-text library: Text interface for regex-tdfa
regex-tdfa-unittest program: Unit tests for the regex-tdfa
regex-tdfa-utf8 library: ...
regex-tre library: Replaces/Enhances Text.Regex
regex-with-pcre library: Toolkit for regex-base
regex-xmlschema library: A regular expression library for W3C XML Schema regular expressions
regexchar library, program and test: A POSIX, extended regex-engine.
regexpr library: regular expression like Perl/Ruby in Haskell
regexpr-symbolic library: Regular expressions via symbolic manipulation
regexqq library: A quasiquoter for PCRE regexes.
relit library: Literal for regular expression
render-utf8 library: Simple Utf8 wrapper for ByteString Builder with conversion classes
repr library: Render overloaded expressions to their textual representation.
repr-tree-syb library: Tree representation and pretty-printing of data structures based on SYB
reprinter library and test: Scrap Your Reprinter
rfc5051 library and test: Simple unicode collation as per RFC5051.
richreports library: Integrated pretty-printing and error/static analysis reporting.
RJson library: A reflective JSON serializer/parser.
rope-utf16-splay library and test: Ropes optimised for updating using UTF-16 code units and row/column pairs.
roundtrip library: Bidirectional (de-)serialization
roundtrip-string library: Bidirectional (de-)serialization
roundtrip-xml library and program: Bidirectional (de-)serialization for XML.
rowrecord library: Build records from lists of strings, as from CSV files.
safe-printf library and tests: Well-typed, flexible and variadic printf for Haskell
sajson library, program and test: Fast JSON parsing powered by Chad Austin's sajson library
sax library and test: Monadic streaming XML parser
say library, test and benchmark: Send textual messages to a Handle in a thread-friendly way
scanf library and test: Easy and type-safe format strings for parsing and printing
scholdoc library, programs, test and benchmark: Converts ScholarlyMarkdown documents to HTML5/LaTeX/Docx format
scholdoc-citeproc library, programs and test: Scholdoc fork of pandoc-citeproc
scholdoc-texmath library, program and test: Scholdoc fork of texmath
scholdoc-types library: Scholdoc fork of pandoc-types
sci-ratio library and test: Rational numbers in scientific notation.
sdf2p1-parser library and tests: A parser for SDF version 2.1 using Parsec
seonbi library, programs and tests: SmartyPants for Korean language
servant-static-th library, program and tests: Embed a directory of static files in your Servant server
sext library and test: Lists, Texts, ByteStrings and Vectors with type-encoded length
shell-escape library: Shell escaping library.
shellwords library and test: Parse strings into words, like a shell would
shortcut-links library and test: Link shortcuts for use in text markup
show-combinators library and test: Combinators to write Show instances
show-prettyprint library and test: Robust prettyprinter for output of auto-generated Show instances
ShowF library: Show for * -> *
shwifty library: Generate swift types from haskell types.
silkscreen library: Prettyprinting transformers.
simple-config library and test: Simple config file parser generator
simple-tabular library: Simple tabular-text formatter
simple-text-format library and test: Simple text based format strings with named identifiers.
SimpleTableGenerator library and test: Simple table generator
skylighting library and program: syntax highlighting library
skylighting-core library, program, test and benchmark: syntax highlighting library
skylighting-extensions library: Customized Skylighting syntax highlighters
skylighting-modding library: Utilities for modifying Skylighting syntaxes
skypelogexport program: Export Skype chat logs to text files
smallcaps library, programs and tests: Flatten camel case text in LaTeX files
smap library, program and test: A command line tool for working with sets and maps
snippet-extractor program: Extracts labeled snippets of code to files.
snowball library, test and benchmark: Bindings to the Snowball library.
Snusmumrik programs: E-library directory based on FUSE virtual file system.
sockets-and-pipes library: Support for the Sockets and Pipes book
Sonnex library and test: Sonnex is an alternative to Soundex for french language
sort library: A Haskell sorting toolkit
spars library: A sparse set-based parsing library for Haskell.
spelling-suggest library and programs: Spelling suggestion tool with library and command-line interfaces.
sphinx library: Haskell bindings to the Sphinx full-text searching daemon.
sphinx-cli program: Sphinx CLI and demo of Haskell Sphinx library
sphinxesc library and program: Transform queries for sphinx input
Spintax library: Random text generation based on spintax
splitter program: Use numerical ranges to split out certain lines from a file.
spreadsheet library and programs: Read and write spreadsheets from and to CSV files in a lazy way
SpreadsheetML library: Write support for Excel's SpreadsheetML format
sssp library and program: HTTP proxy for S3.
ssv library and program: Comma-separated-value (CSV) read, show and write routines
stache library, program, tests and benchmark: Mustache templates for Haskell
static-text library and tests: Lists, Texts, ByteStrings and Vectors of statically known length
stemmer library: Haskell bindings to the Snowball stemming library.
step-function library and test: Staircase functions or piecewise constant functions
str library: A type class to abstract between many different string types.
StrappedTemplates library and test: General purpose templates in haskell
string-class library: String class library
string-conv library: Standardized conversion between string types
string-convert library and test: Universal string conversions
string-fromto library: Conversions between common string types, as well as Base16/Base32/Base64.
string-interpolate library, test and benchmark: Haskell string/text/bytestring interpolation that just works
string-isos library: Tools for working with isomorphisms of strings
string-random library, program and tests: A library for generating random string from a regular experession
string-transform library and test: simple and easy haskell string transform wrapper
stringable library: A Stringable type class, in the spirit of Foldable and Traversable
stringlike library and test: Transformations to several string-like types
strings library: Functions for working with strings, including Text, ByteString, etc.
stringsearch library: Fast searching, splitting and replacing of ByteStrings
StringUtils library: String manipulation utilities
strip-ansi-escape library and test: Strip ANSI escape code from string.
submark library, program and tests: Extract a part from CommonMark/Markdown docs
substring-parser library and test: Match / replace substrings with a parser combinators.
subtitleParser library: A parser for .srt and .sub files
sundown library: Bindings to the sundown markdown library
sv library, test and benchmark: Encode and decode separated values (CSV, PSV, ...)
sv-cassava library and test: Integration to use sv with cassava's parser
sv-core library and test: Encode and decode separated values (CSV, PSV, ...)
sv-svfactor library: sv-core + svfactor
svfactor library and test: Syntax-preserving CSV manipulation
sxml library: A SXML-parser
symantic-atom library and test: Library for reading and writing Atom.
symantic-document library and test: Document symantics.
symantic-xml library and test: Library for reading, validating and writing XML.
tabl library: Table layout
table program: Simple tool to generate tables from DSV input
table-layout library, program and test: Format tabular data as grid or table.
Tablify program: Tool to render CSV into tables of various formats
tablize program: Pretty-printing of CSV files
tabular library: Two-dimensional data tables with rendering functions
taggy library, program, tests and benchmark: Efficient and simple HTML/XML parsing library
taggy-lens library and tests: Lenses for the taggy html/xml parser
tagsoup-selection library: Selecting subtrees from TagSoup's TagTrees using CSS selectors
tagstew library and program: Black magic tagsoup
tamper library: Blaze-style HTML templates as a Monad Transformer.
tapioca library and test: A tasty enhancement to cassava for easy csv exporting
tdoc library: TDoc is a typed document builder with support for (X)HTML
template library: Simple string substitution
template-toolkit library: Template Toolkit implementation for Haskell
template-yj library: Process template file
templater library and test: Simple string templater
termbox-bindings library and program: Bindings to the Termbox library
termonad library, programs and tests: Terminal emulator configurable in Haskell
tex2txt library and program: LaTeX to plain-text conversion
texmath library, program and test: Conversion between formats used to represent mathematics.
text library: An efficient packed Unicode text type.
text-all library: Everything Data.Text related in one package
text-and-plots library: EDSL to create HTML documents with plots based on the C3.js library.
text-ascii library: ASCII string and character processing.
text-builder library, test and benchmarks: An efficient strict text builder
text-cp437 library and test: Conversion of Text to and from CP437
text-format library: Text formatting
text-format-heavy library and test: Full-weight string formatting library, analog of Python's string.format
text-format-simple library: Simple text formatting library.
text-generic-pretty library and test: A generic, derivable, haskell pretty printer.
text-icu library and test: Bindings to the ICU library
text-icu-normalized library and test: Dealing with Strict Text in NFC normalization.
text-icu-translit library and test: ICU transliteration
text-latin1 library: Latin-1 (including ASCII) utility functions
text-ldap library, program and test: Parser and Printer for LDAP text data stream
text-lips library: Monadic parsing combinator library with attention to locations
text-loc library: Line-column locations within a text.
text-locale-encoding library: Encode and decode Text to/from ByteString using TextEncoding
text-manipulate library, test and benchmark: Case conversion, word boundary manipulation, and textual subjugation.
text-markup library and test: A data structure for mapping metadata to text subsequences
text-metrics library, test and benchmarks: Calculate various string metrics efficiently
text-offset library and test: Library for converting between line/column and byte offset.
text-position library and test: Handling positions in text and position-tagging it.
text-printer library and test: Abstract interface for text builders/printers.
text-regex-replace library and test: Easy replacement when using text-icu regexes.
text-region library and test: Marking text regions
text-render library: A type class for rendering objects as text, pretty-printing, etc.
text-replace library, program and test: Simple text replacements from a list of search/replace pairs
text-show library, test and benchmark: Efficient conversion of values into Text
text-show-instances library and test: Additional instances for text-show
text-stream-decode library, test and benchmarks: Streaming decoding functions for UTF encodings. (deprecated)
text-utf8 library and test: An efficient packed UTF-8 backed Unicode text type.
text-xml-qq library: Quasiquoter for xml. XML DSL in Haskell.
text-zipper library and test: A text editor zipper library
text-zipper-monad library and test: Monadic interface to the text-zipper package
textual library: Textual type class for data that represent text
th-compat library and test: Backward- (and forward-)compatible Quote and Code types
th-printf library and test: Quasiquoters for printf
thimk programs: Command-line spelling word suggestion tool
time-locale-vietnamese library: Vietnamese locale for date and time format
timeprint library: Prints timestamps after each line evaluated
timerep library and test: Parse and display time according to some RFCs (RFC3339, RFC2822, RFC822)
tinytemplate library and test: A tiny text templating library
titlecase library, program and test: Convert English Words to Title Case
tn library and program: A simple daily journal program
tokenizer-monad library: An efficient and easy-to-use tokenizer monad.
tokenizer-streaming library: A variant of tokenizer-monad that supports streaming.
tomland library, programs and test: Bidirectional TOML serialization
transf library and program: Text transformer and interpreter.
translate library: Haskell binding to Google's AJAX Language API for Translation and Detection
trasa-reflex library: Reactive Type Safe Routing
trifecta library and test: A modern parser combinator library with convenient diagnostics
trim library, program and test: A command-line tool for trimming whitespace
tsv2csv library and program: Convert tsv to csv
tsvsql program: Template tsv into SQL
ttc library and test: Textual Type Classes
tw program: Trailing Whitespace
twiml library and test: TwiML library for Haskell
twine library: very simple template language
txt library and test: Text
txt2rtf program: Filter to convert plain text files to RTF
txtblk library: Deprecated in favor of eros.
type-cache library: ...
type-of-html library, tests and benchmarks: High performance type driven html generation.
type-of-html-static library and test: Optimize static parts of type-of-html.
typed-encoding library and tests: Type safe string transformations
typed-encoding-encoding library and tests: Bridge between encoding and typed-encoding packages
typelits-printf library: Type-safe printf from parsing GHC TypeLits Symbol
tyro library and test: Type derived JSON parsing using Aeson
ucd library, test and benchmark: Unicode Character Database — Predicates on characters specified by Unicode
uhexdump program: hex dumper for UTF-8 text
unescaping-print library: Tiny package providing unescaping versions of show and print
unicode library, program and test: Construct and transform unicode characters
unicode-collation library, program, tests and benchmark: Haskell implementation of the Unicode Collation Algorithm
unicode-names library: Unicode 3.2.0 character names
unicode-normalization library: Unicode normalization using the ICU library
unicode-properties library: Unicode 3.2.0 character properties
unicode-show library and test: print and show in unicode
unicode-transforms library, program, tests and benchmark: Unicode normalization
unicoder library, program and test: Make writing in unicode easy.
unidecode library and test: Haskell binding of Unidecode
units-parser library and test: A parser for units of measure
unliftio-path library: UnliftIO using well-typed Paths.
unparse-attoparsec library and tests: An attoparsec roundtrip
unscramble program: Solve Boggle-like word games
upskirt library: Binding to upskirt
uri library: Library for working with URIs
uri-conduit library: Read and write URIs (deprecated)
uri-enumerator library: Read and write URIs (deprecated)
uri-enumerator-file library: uri-enumerator backend for the file scheme (deprecated)
URLb library: DEPRECATED A simple, liberal URL parser.
urldecode program: Decode percent-encoded strings.
utf library, test and benchmark: UTF-8
UTFTConverter library, program and test: Processing popular picture formats into .c or .raw format in RGB565
uu-interleaved library: An interleaving combinator for use with applicative style implementations.
uu-parsinglib library: Fast, online, error-correcting, monadic, applicative, merging, permuting, ...
uu-tc library: Haskell 98 parser combinators for INFOB3TC at Utrecht University
vcard library: A library for parsing/printing vCards from/to various formats.
verbalexpressions library: Regular expressions made easy
vflow-types library and tests: types for ingesting vflow data with aeson
vformat library and test: A Python str.format() like formatter
vformat-aeson library and test: Extend vformat to Aeson datatypes
vformat-time library and test: Extend vformat to time datatypes
vorbiscomment library: Reading of Vorbis comments from Ogg Vorbis files
wavesurfer library: Parse WaveSurfer files
wcwidth library and program: Native wcwidth.
WEditor library and test: Generic text-editor logic for use with fixed-width fonts.
WEditorHyphen library and test: Language-specific hyphenation policies for WEditor.
weighted-regexp library and programs: Weighted Regular Expression Matcher
whiskers library: Mustache templates with Template Haskell.
wikipedia4epub library and program: Wikipedia EPUB E-Book construction from Firefox history.
wl-pprint library: The Wadler/Leijen Pretty Printer
wl-pprint-annotated library and test: Pretty printer with annotation support
wl-pprint-ansiterm library: ANSI Terminal support with wl-pprint-extras
wl-pprint-console library: Wadler/Leijen pretty printer supporting colorful console output.
wl-pprint-extras library and test: A free monad based on the Wadler/Leijen pretty printer
wl-pprint-terminfo library: A color pretty printer with terminfo support
wl-pprint-text library: A Wadler/Leijen Pretty Printer for Text values
word-wrap library, test and benchmark: A library for word-wrapping
Wordlint library and program: Plaintext prose redundancy linter.
wordlist library and program: Command-line tool to get random words
WordNet library: Haskell interface to the WordNet database
WordNet-ghc74 library: Haskell interface to the WordNet database
wybor library and test: Console line fuzzy search
X library: A light-weight XML library
xformat library and test: Extensible, type-safe formatting with scanf- and printf-like functions
xhaskell-library library: Replaces/Enhances Text.Regex
xhtml-combinators library: Fast and easy to use XHTML combinators.
xkbcommon library, tests and benchmark: Haskell bindings for libxkbcommon
xlsx-tabular library and test: Xlsx table cell value extraction utility
xml library: A simple XML library.
xml-catalog library: Parse XML catalog files (deprecated)
xml-conduit-parse library and tests: Streaming XML parser based on conduits.
xml-conduit-writer library and test: Warm and fuzzy creation of XML documents.
xml-hamlet library and test: Hamlet-style quasiquoter for XML content
xml-helpers library: Some useful helper functions for the xml library.
xml-html-qq library and tests: Quasi-quoters for XML and HTML Documents
xml-indexed-cursor library and tests: Indexed XML cursors similar to 'Text.XML.Cursor' from xml-conduit
xml-monad library: Monadic extensions to the xml package.
xml-prettify library and program: Pretty print XML.
xml-tydom-conduit library and test: Typed XML encoding for an xml-conduit backend.
xml-tydom-core library: Typed XML encoding (core library).
xml-types library: Basic types for representing XML
xml2json library, program and test: translate xml to json
xmlbf library and test: XML back and forth! Parser, renderer, ToXml, FromXml, fixpoints.
xmlbf-xeno library and test: xeno backend support for the xmlbf library.
xmlbf-xmlhtml library and test: xmlhtml backend support for the xmlbf library.
xmlgen library, test and benchmark: Fast XML generation library
xmlhtml library and test: XML parser and renderer with HTML 5 quirks mode
xournal-builder library: text builder for xournal file format
xournal-parser library: Xournal file parser
xpathdsv program: Command line tool to extract DSV data from HTML and XML with XPATH expressions
XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP
yajl-enumerator library: Enumerator-based interface to YAJL, an event-based JSON implementation
yaml-combinators library and tests: YAML parsing combinators for improved validation and error reporting
YamlReference library, program and test: YAML reference implementation
yasi library and test: Yet another string interpolator
yate library and test: Yet Another Template Engine
yeganesh programs: small dmenu wrapper
Yocto library: A Minimal JSON Parser & Printer for Haskell
yocto library and test: A Minimal JSON Parser & Printer for Haskell
yoda library: Parser combinators for young padawans
yst program: Builds a static website from templates and data in YAML or CSV files.
yuuko library and program: A transcendental HTML parser gently wrapping the HXT library
zampolit program: A tool for checking how much work is done on group projects.
zenc library: GHC style name Z-encoding and Z-decoding
zettelkast library, program and test: Command-line utility for working with zettelkast files
zinza library and test: Typed templates with jinja like syntax
Zwaluw library: Combinators for bidirectional URL routing

Text Editor

rasa library and test: A modular text editor

Text Recognition

antigate library: Interface for antigate.com captcha recognition API

Text.PrettyPrint

FPretty library: Efficient simple pretty printing combinators

TH

sum-type-boilerplate library and test: Library for reducing the boilerplate involved with sum types
THEff library: TH implementation of effects.

Theorem Provers

atp library and tests: Interface to automated theorem provers
atp-haskell library and test: Translation from Ocaml to Haskell of John Harrison's ATP code
bindings-yices library: Bindings to the Yices theorem prover
boolector library and tests: Haskell bindings for the Boolector SMT solver
dedukti library and programs: A type-checker for the λΠ-modulo calculus.
Folly library and programs: A first order logic library in Haskell
haskhol-core library: The core logical system of HaskHOL, an EDSL for HOL theorem proving.
hgen program: Random generation of modal and hybrid logic formulas
HTab program: Tableau based theorem prover for hybrid logics
htaut library: Tautology Proving Logic in Haskell
hylolib library: Tools for hybrid logics related programs
hylotab program: Tableau based theorem prover for hybrid logics
hyloutils programs: Very small programs for hybrid logics
hz3 library, program and test: Bindings for the Z3 Theorem Prover
ivor library: Theorem proving library based on dependent type theory
logic-classes library and test: Framework for propositional and first order logic, theorem proving
logic-TPTP library, programs and test: Import, export etc. for TPTP, a syntax for first-order logic
mprover program: Simple equational reasoning for a Haskell-ish language
pesca program: Proof Editor for Sequent Calculus
qed library and test: Simple prover
sbv library, tests and benchmarks: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
sbvPlugin library and test: Formally prove properties of Haskell programs using SBV/SMT
scyther-proof program: Automatic generation of Isabelle/HOL correctness proofs for security protocols.
smtlib2 library: A type-safe interface to communicate with an SMT solver.
smtlib2-debug library: Dump the communication with an SMT solver for debugging purposes.
smtlib2-pipe library and test: A type-safe interface to communicate with an SMT solver.
smtlib2-quickcheck library: Helper functions to create SMTLib expressions in QuickCheck
smtlib2-timing library: Get timing informations for SMT queries
structural-induction library and test: Instantiate structural induction schemas for algebraic data types
tableaux program: An interactive theorem prover based on semantic tableaux
tamarin-prover program: The Tamarin prover for security protocol analysis.
tamarin-prover-term library: Term manipulation library for the tamarin prover.
tamarin-prover-theory library: Term manipulation library for the tamarin prover.
tamarin-prover-utils library: Utility library for the tamarin prover.
theoremquest library: A common library for TheoremQuest, a theorem proving game.
theoremquest-client program: A simple client for the TheoremQuest theorem proving game.
tip-haskell-frontend library and program: Convert from Haskell to Tip
tip-lib library and program: tons of inductive problems - support library and tools
toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
tptp library and tests: Parser and pretty printer for the TPTP language
twee program: An equational theorem prover
twee-lib library: An equational theorem prover
what4 library, program and tests: Solver-agnostic symbolic values support for issuing queries
yices-easy library: Simple interface to the Yices SMT (SAT modulo theories) solver.
yices-painless library: An embedded language for programming the Yices SMT solver
z3 library, program and test: Bindings for the Z3 Theorem Prover
zeno program: An automated proof system for Haskell programs
zsyntax library and test: Automated theorem prover for the Zsyntax biochemical calculus

Theorem Proving

proof-combinators library: Proof Combinators used in Liquid Haskell for Theorem Proving

These

monad-chronicle library: These as a transformer, ChronicleT
semialign library: Align and Zip type-classes from the common Semialign ancestor.
semialign-indexed library: SemialignWithIndex, i.e. izipWith and ialignWith
semialign-optics library: SemialignWithIndex, i.e. izipWith and ialignWith
these library: An either-or-both data type.
these-lens library: Lenses for These
these-optics library: Optics for These

This

acme-this library: import This

Time

attoparsec-time library: Attoparsec parsers of time
bank-holiday-usa library and test: A library for determining US bank holidays
chronos library, tests and benchmark: A high-performance time library
cursor-fuzzy-time library
cursor-fuzzy-time-gen library, test and benchmark
distance-of-time library and test: Generate readable distances between times.
duration library and tests: A tiny compile-time time utility library inspired by zeit/ms
ebeats library: Time in ebeats
expiring-containers library and test: Expiring containers
fixed-timestep library: Pure Haskell library to repeat an action at a specific frequency.
flick-duration library and test: work with durations of time using the Flick as the smallest unit
freer-simple-time library and test: freer-simple interface to IO based time functions
fuzzy-time library
fuzzy-time-gen library, test and benchmark
haskell-time-range library and test: Some useful wrappers and functions for building time ranges
herf-time library and test: haskell time manipulation in a 'kerf like' style.
hodatime library, test and benchmark: A fully featured date/time library based on Nodatime
hora library and test: date time
hourglass library, test and benchmark: simple performant time related library
hourglass-fuzzy-parsing library: A small library for parsing more human friendly date/time formats.
human-readable-duration library, test and benchmark: Provide duration helper
interval-algebra library and test: An implementation of Allen's interval algebra for temporal logic
iso8601-time library and test: Convert to/from the ISO 8601 time format
jalaali library, test and benchmark: Jalaali calendar systems
japanese-calendar library and test: Data type of Japanese Calendar (Wareki).
japanese-holidays library and tests: Japanese holidays utility
korea-holidays library and test: Korea Holidays
leapseconds library and test
months library: MonthName
ntp-control library and test: Client library for NTP control messaging
o-clock library, program, tests and benchmark: Type-safe time library.
polysemy-chronos library and test: Polysemy effect for chronos
polysemy-time library and test: Polysemy effect for time
pretty-relative-time library and test: Pretty relative time
rdtsc-enolan library: Binding to sources of high-efficiency, high-precision, ...
rfc3339 library: Parse and display time according to RFC3339 (deprecated)
rrule library and test: Recurrence rule parser and formatter
SCalendar library and test: ...
scalendar library and test: A library for handling calendars and resource availability over time.
schedule library and tests: Pure deterministic scheduled computations
tai library: Support library to enable TAI usage on systems with time kept in UTC.
tiempo library: Specify time intervals in different units (secs, mins, hours, etc.)
time library, tests and benchmark: A time library
time-cache library: Cache current time and formatted time text
time-compat library and tests: Compatibility package for time
time-exts library and test: Yet another time library
time-http library and test: Parse and format HTTP/1.1 Date and Time strings
time-out library and test: Timers, timeouts, alarms, monadic wrappers
time-patterns library: Patterns for recurring events
time-qq library and test: Quasi-quoter for UTCTime times
time-quote library and test: Quasi-quoters for dates and times
timerep library and test: Parse and display time according to some RFCs (RFC3339, RFC2822, RFC822)
timestamp library: Space-efficient Unix timestamp and utilities
timeutils library, program and test: Time utilities
timezone-detect library and test: Haskell bindings for the zone-detect C library; plus tz-aware utils.
timezone-unix library and test
utc library and test: A pragmatic time and date library.
vformat-time library and test: Extend vformat to time datatypes
workdays library and tests: Workday calculations

Time-frequency Distributions

wigner-ville-accelerate library and test: Wigner-ville transform using the Accelerate library

Timeout

schedule library and tests: Pure deterministic scheduled computations
time-out library and test: Timers, timeouts, alarms, monadic wrappers

TODO

enumerate-function library, program, tests and benchmark: simple package for inverting functions and testing totality, ...
projectile library and test: Go to README.md
workflow-extra library, program, tests and benchmark: Utilities (e.g. Googling the clipboard contents) for the `workflow` pacakge
workflow-pure library, program, tests and benchmark: manipulate `workflow-types:Workflow`'s

Tokenisation

Kawaii-Parser library: A simple parsing library.

TOML

htoml-megaparsec library, test and benchmark: Parser for TOML files
tomland library, programs and test: Bidirectional TOML serialization
tomlcheck program: Command-line tool to check syntax of TOML files

Tonatona

tonalude library and tests: A standard library for Tonatona framework.
tonaparser library, program and tests: Scalable way to pass runtime configurations for tonatona
tonatona library and tests: meta application framework
tonatona-google-server-api library and tests: tonatona plugin for google-server-api
tonatona-logger library and tests: tonatona plugin for logging.
tonatona-persistent-postgresql library and tests: tonatona plugin for accessing PostgreSQL database.
tonatona-persistent-sqlite library and tests: tonatona plugin for accessing Sqlite database.
tonatona-servant library and tests: tonatona plugin for servant.

Tool

flow2dot library, program and test: Library and binary to generate sequence/flow diagrams from plain text source
unity-testresult-parser library and program

Tooling

grafana library and test: API for creating grafana dashboards represented as json

Tools

binsm program: binary files splitter and merger
bogocopy program: Copy a directory tree, making zero-size sparse copies of big files.
cabal-db program: query tools for the local cabal database
crackNum program: Crack various integer and floating-point data formats
data-files-gen library, program and test: Generate data-files Cabal file field from existing files
dhrun library, program and test: Dhall/YAML configurable concurrent integration test executor.
escoger library, program, test and benchmark: Terminal fuzzy selector
FloatingHex library: Read and write hexadecimal floating point numbers
fswait program: Wait and observe events on the filesystem for a path, with a timeout
fswatcher program: Watch a file/directory and run a command when it's modified
g-npm program: Generate Gentoo ebuilds from NodeJS/npm packages.
garepinoh library and programs: reverse prefix notation calculator and calculation library
ghc-man-completion program: Generate a bash completion from the GHC manpage
gitcache program: Simple git utility to use and manage clone cache
gsmenu program: A visual generic menu
gt-tools programs: Console and GUI interface for Google Translate service
hakyll-convert library, program and tests: Convert from other blog engines to Hakyll.
hascal library and program: tiny calculator library and command-line program
homplexity library, program and test: Haskell code quality tool
hsmodetweaks program: Tool for generating .dir-locals.el for intero
imgur library: A function to post an image to imgur
implicit-hie library, program and test: Auto generate hie-bios cradles & hie.yaml
implicit-hie-cradle library and test: Auto generate hie-bios cradles
iptadmin program: web-interface for iptables
json-alt library: Union 'alternative' or Either that has untagged JSON encoding.
json-autotype library, program and tests: Automatic type declaration for JSON input data
json-tools programs: A collection of JSON tools
lightstep-haskell library, programs and test: LightStep OpenTracing client library
log2json library and program: Turn log file records into JSON.
master-plan library, program and test: The project management tool for hackers
merge-bash-history library, program and test: command line utility to merge bash_history
Monadoro library, program and test: A minimalistic CLI Pomodoro timer.
nemesis library: a task management tool for Haskell
newt library and programs: A trivially simple app to create things from simple templates.
nicify program: Pretty print the standard output of default `Show` instances.
nicify-lib library: Pretty print the standard output of default `Show` instances.
nixfromnpm program: Generate nix expressions from npm packages.
pit library and program: Account management tool.
posplyu program: Sleep tracker for X11, using XScreenSaver extension and manual input.
recursive-line-count program: Count lines in files and display them hierarchically
reheat program and test: to make notes and reduce impact on idle time on writing other programms.
RollingDirectory program and test: Limits the size of a directory's contents
run-haskell-module library: Running newly generated Haskell source module.
runhs program and test: Stack wrapper for single-file Haskell programs.
setop library, program and tests: Perform set operations on files.
shift program: A tool to quickly switch between directories
stutter library, program and test: (Stutter Text|String)-Utterer
technique library, program and test: Procedures and Sequences
teleport library, program and test: A tool to quickly switch between directories
wordpass library and program: Dictionary-based password generator

Topology

search library and test: Infinite search in finite time with Hilbert's epsilon

TouchDesigner

LambdaDesigner library: A type-safe EDSL for TouchDesigner written in Haskell.

Trace

edentv program: A Tool to Visualize Parallel Functional Program Executions
ghc-events library, program and tests: Library and tool for parsing .eventlog files from GHC
ghc-events-analyze program: Analyze and visualize event logs
ghc-events-parallel library, program and test: Library and tool for parsing .eventlog files from parallel GHC
ghc-trace-events library and benchmarks: Faster traceEvent and traceMarker, and binary object logging for eventlog
Hoed library and tests: Lightweight algorithmic debugging.
hood library and test: Debugging by observing in place
hood-off library: Dummy package to disable Hood without having to remove all the calls to observe
hood2 library: Debugging by observing in place
hpc-strobe library: Hpc-generated strobes for a running Haskell program
hpc-tracer program: Tracer with AJAX interface
linux-perf library and programs: Read files generated by perf on Linux
threadscope program: A graphical tool for profiling parallel Haskell programs.

Training

io-manager library and program: Skeleton library around the IO monad.

Trans

Tainted library: Tainted type, and associated operations

Transformation

hermit library, program and test: Haskell Equational Reasoning Model-to-Implementation Tunnel
hermit-syb library: HERMIT plugin for optimizing Scrap-Your-Boilerplate traversals.
html-rules library: Perform traversals of HTML structures using sets of rules.

Transformers

cps-except library: ExceptT replacement in CPS style

Translation

nicovideo-translator library and program: Nico Nico Douga (ニコニコ動画) Comment Translator

Transpiler

axel library, program and test: The Axel programming language.

Tree

elenco-albero library and test: make tree from a list
repr-tree-syb library: Tree representation and pretty-printing of data structures based on SYB
rose-trees library, test and benchmark: Various trie implementations in Haskell
treap library and tests: Efficient implementation of the implicit treap data structure
tries library, test and benchmarks: Various trie implementations in Haskell

Tree-sitter

tree-sitter library and test: Unstable bindings for the tree-sitter parsing library.
tree-sitter-go library: Tree-sitter grammar/parser for Go
tree-sitter-haskell library and program: Tree-sitter grammar/parser for Haskell (with GHC extensions)
tree-sitter-java library: Tree-sitter grammar/parser for Java
tree-sitter-json library: Tree-sitter grammar/parser for JSON
tree-sitter-php library: Tree-sitter grammar/parser for PHP
tree-sitter-python library: Tree-sitter grammar/parser for Python
tree-sitter-ql library: Tree-sitter grammar/parser for QL
tree-sitter-ruby library: Tree-sitter grammar/parser for Ruby
tree-sitter-rust library: Tree-sitter grammar/parser for Rust
tree-sitter-tsx library: Tree-sitter grammar/parser for TSX
tree-sitter-typescript library: Tree-sitter grammar/parser for TypeScript

Tropical Geometry

tropical-geometry library, program, test and benchmark: A Tropical Geometry package for Haskell

TUI

network-manager-tui library, program and test: network-manager tui
summoner-tui program: ...

TUI Tool

summoner-tui program: ...

Tutorials

HaskellTutorials program: Haskell Tutorials by Evgeny Ukhanov

Type Errors

type-errors-pretty library and test: Combinators for writing pretty type errors easily

Type Inference

ml-w library and program: Minimal ML language to to demonstrate the W type infererence algorithm.

Type System

cluss library: simple alternative to type classes
compound-types library and benchmark: Sum and Product types and such
data-type library: Basic type wrangling types and classes
defargs library: default arguments in haskell
eq library: Leibnizian equality
funspection library: Type-level function utilities
ghc-tcplugins-extra library: Utilities for writing GHC type-checker plugins
ghc-typelits-extra library and test: Additional type-level operations on GHC.TypeLits.Nat
ghc-typelits-knownnat library and test: Derive KnownNat constraints from other KnownNat constraints
ghc-typelits-natnormalise library and test: GHC typechecker plugin for types of kind GHC.TypeLits.Nat
ghc-typelits-presburger library, program and test: Presburger Arithmetic Solver for GHC Type-level natural numbers.
hout library and test: Non-interactive proof assistant monad for first-order logic.
kinds library: Emulation of subkinds and subkind polymorphism
names library: Type level names.
natural-number library: Natural numbers tagged with a type-level representation of the number.
nullary library: A package for working with nullary type classes.
reorderable library: Define compound types that do not depend on member order.
sext library and test: Lists, Texts, ByteStrings and Vectors with type-encoded length
singletons-presburger library and program: Presburger Arithmetic Solver for GHC Type-level natural numbers with Singletons package.
static-text library and tests: Lists, Texts, ByteStrings and Vectors of statically known length
supermonad library and test: Plugin and base library to support supermonads in Haskell
tfp library and test: Type-level integers, booleans, lists using type families
tfp-th library: Template-Haskell code for tfp
type-booleans library: Type-level booleans via type-families
type-cereal library: Type-level serialization of type constructors
type-digits library: Arbitrary-base type-level digits
type-eq library: Type equality evidence you can carry around
type-functions library: Emulation of type-level functions
type-level-natural-number library: Simple type level natural numbers
type-level-natural-number-induction library: High-level combinators for performing inductive operations.
type-level-natural-number-operations library: Basic operations on type-level natural numbers.
type-level-numbers library and tests: Type level numbers implemented using type families.
type-level-sets library: Type-level sets and finite maps (with value-level counterparts)
type-ord library: Type-level comparison operator
type-ord-spine-cereal library: Generic type-level comparison of types
type-settheory library: Sets and functions-as-relations in the type system
type-spine library: A spine-view on types
typelevel-rewrite-rules library and test: Solve type equalities using custom type-level rewrite rules
uom-plugin library and tests: Units of measure as a GHC typechecker plugin

Type Theory

typerbole library and test: A typesystems library with exaggerated claims

Typechecking

typerbole library and test: A typesystems library with exaggerated claims

Typeclass

unlift library: Typeclass for monads that can be unlifted to arbitrary base monads

Types

compound-types library and benchmark: Sum and Product types and such
finite library and test: Finite ranges via types
rg library and test: A dynamic/unbounded alternative to Bounded Enum
say-my-name library: Require explicit type application for some type variables.
sum-type-boilerplate library and test: Library for reducing the boilerplate involved with sum types
type-errors-pretty library and test: Combinators for writing pretty type errors easily
type-iso library: Typeclasses for injective relations and isomorphisms between types.
typerep-map library, test and benchmark: Efficient implementation of a dependent map with types as keys

TypeScript

tree-sitter-tsx library: Tree-sitter grammar/parser for TSX
tree-sitter-typescript library: Tree-sitter grammar/parser for TypeScript

Typesystems

typerbole library and test: A typesystems library with exaggerated claims

Typography

cubicbezier library and test: Efficient manipulating of 2D cubic bezier curves.
dvi-processing library: Read/write DVI and TFM file
fmark program: A Friendly Markup language without syntax.
layout library: Turn values into pretty text or markup
opentype library and test: Opentype loading and writing
typography-geometry library: Drawings for printed text documents

UI

butcher library and test: Chops a command or program invocation into digestable pieces.
fltkhs library and programs: FLTK bindings
fltkhs-demos programs: FLTKHS demos. Please scroll to the bottom for more information.
fltkhs-fluid-demos programs: Fltkhs Fluid Demos
fltkhs-fluid-examples programs: Fltkhs Fluid Examples
fltkhs-hello-world program: Fltkhs template project
fltkhs-themes library: A set of themed widgets that provides drop in replacements to the ones in FLTKHS.
frpnow-gtk3 library: Program GUIs with GTK3 and frpnow!
load-font library and program: A cross platform library for loading bundled fonts into your application
WL500gPControl programs: A simple command line tools to control the Asus WL500gP router

Unicode

emoji library and program: emoji utility
normalization-insensitive library, test and benchmark: Normalization insensitive string comparison
unicode-general-category library and test: Unicode General Category Database
unicode-transforms library, program, tests and benchmark: Unicode normalization

Unification

monad-unify library: Generic first-order unification
RSolve library, program and test
unification-fd library: Simple generic unification algorithms.

Uniform

uni-events library: Event handling for the uniform workbench
uni-posixutil library: Posix utilities for the uniform workbench
uni-reactor library: Reactors for the uniform workbench
uni-util library: Utilities for the uniform workbench

Unikernel

ec2-unikernel program: A handy tool for uploading unikernels to Amazon's EC2.

Unity3D

unity-testresult-parser library and program

Unknown

ioref-stable library: iorefs with a unique stable index
lrucaching library and test: LRU cache
system-locale library and test: Get system locales

Unlift

unlift library: Typeclass for monads that can be unlifted to arbitrary base monads

Unsafe

true-name library and test: Template Haskell hack to violate module abstractions
unsafeperformst library: Like unsafeperformIO, but for the ST monad.

Ur/Web

urembed program: Ur/Web static content generator
urxml program: XML parser-printer supporting Ur/Web syntax extensions

Urbit

azimuth-hs library and tests: Interact with Azimuth from Haskell
urbit-hob library, tests and benchmark: Hoon-style atom manipulation and printing functions

URI

iri library and test: RFC-based resource identifier library
uri-bytestring-aeson library: Aeson instances for URI Bytestring

URL

iri library and test: RFC-based resource identifier library

User Interface

imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
rewrite-inspector library and programs: Inspection of rewriting steps

User Interfaces

ansi-pretty library: AnsiPretty for ansi-wl-pprint
ansi-terminal library and program: Simple ANSI terminal support, with Windows compatibility
ansi-wl-pprint library and program: The Wadler/Leijen Pretty Printer for colored ANSI terminal output
binding-core library and test: Data Binding
binding-gtk library and tests: Data Binding in Gtk2Hs
binding-wx library and tests: Data Binding in WxHaskell
byline library, programs and test: Library for creating command-line interfaces (colors, menus, etc.)
climb library and program: Building blocks for a GHCi-like REPL with colon-commands
colorful-monoids library and test: Styled console text output using ANSI escape sequences.
concurrent-output library: Ungarble output from several threads or commands
concurrentoutput library: Ungarble output from several threads
console-style library: Styled console text output using ANSI escape sequences.
crystalfontz library: Control Crystalfontz LCD displays.
editline library: Bindings to the editline library (libedit).
fenfire programs: Graph-based notetaking system
fltkhs library and programs: FLTK bindings
fltkhs-themes library: A set of themed widgets that provides drop in replacements to the ones in FLTKHS.
formlets library: Formlets implemented in Haskell
formlets-hsp library: HSP support for Formlets
grapefruit-examples library: Examples using the Grapefruit library
grapefruit-ui library: Declarative user interface programming
grapefruit-ui-gtk library: GTK+-based backend for declarative user interface programming
GtkGLTV library: OpenGL support for Gtk-based GUIs for Tangible Values
GtkTV library: Gtk-based GUIs for Tangible Values
GuiTV library: GUIs for Tangible Values
Hashell program: Simple shell written in Haskell
haskeline library, program and test: A command-line interface for user input, written in Haskell.
haskeline-class library: Class interface for working with Haskeline
HCL library, program and test: High-level library for building command line interfaces.
hs-fltk library: Binding to GUI library FLTK
hscurses-fish-ex program: hscurses swimming fish example
lambdacat library and program: Webkit Browser
linenoise library and program: A lightweight readline-replacement library for Haskell
load-font library and program: A cross platform library for loading bundled fonts into your application
midair library: Hot-swappable FRP
monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
nanocurses library: Simple Curses binding
ncurses library: Modernised bindings to GNU ncurses
phooey library: Functional user interfaces
prettyprinter library, program, tests and benchmarks: A modern, easy to use, well-documented, extensible pretty-printer.
prettyprinter-ansi-terminal library, test and benchmark: ANSI terminal backend for the »prettyprinter« package.
prettyprinter-compat-annotated-wl-pprint library: Drop-in compatibility package to migrate from »annotated-wl-pprint« to »prettyprinter«.
prettyprinter-compat-ansi-wl-pprint library: Drop-in compatibility package to migrate from »ansi-wl-pprint« to »prettyprinter«.
prettyprinter-compat-wl-pprint library: Prettyprinter compatibility module for previous users of the wl-pprint package.
prettyprinter-convert-ansi-wl-pprint library and test: Converter from »ansi-wl-pprint« documents to »prettyprinter«-based ones.
progress library: Simple progress tracking & projection library
proplang library: A library for functional GUI development
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
repline library and tests: Haskeline wrapper for GHCi-like REPL interfaces.
safe-coloured-text library: Safely output coloured text
settings library: Runtime-editable program settings.
Shellac library: A framework for creating shell envinronments
Shellac-compatline library: "compatline" backend module for Shellac
Shellac-editline library: Editline backend module for Shellac
Shellac-haskeline library: Haskeline backend module for Shellac
Shellac-readline library: Readline backend module for Shellac
show-prettyprint library and test: Robust prettyprinter for output of auto-generated Show instances
sneakyterm library: Tiny, declarative wrapper around ncurses
stylized library: Ways to output stylized text on ANSI consoles.
termbox library and program: termbox bindings
termbox-banana library and programs: reactive-banana + termbox
terminal-progress-bar library, test and benchmark: A progress bar in the terminal
terminfo library: Haskell bindings to the terminfo library.
vty library, programs and tests: A simple terminal UI library
vty-examples programs: Examples programs using the vty library.
vty-ui library and programs: An interactive terminal user interface library for Vty
vty-ui-extras library: Extra vty-ui functionality not included in the core library
Win32-console library: Binding to the Win32 console API
wizards library: High level, generic library for interrogative user interfaces
wx library: wxHaskell
wxc library: wxHaskell C++ wrapper
wxcore library: wxHaskell core
WXDiffCtrl library: WXDiffCtrl
wxdirect library and program: helper tool for building wxHaskell
xtc library: eXtended & Typed Controls for wxHaskell.
zipedit library: Create simple list editor interfaces

User-interface

hscurses library: NCurses bindings for Haskell
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-external-ref library: External reference with reactivity support
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize

UserInterface

wild-bind library and test: Dynamic key binding framework
wild-bind-indicator library: Graphical indicator for WildBind
wild-bind-task-x11 library and test: Task to install and export everything you need to use WildBind in X11
wild-bind-x11 library and test: X11-specific implementation for WildBind

Util

dot-linker library, program and test: Initial project template from stack
hkgr program: Simple Hackage release workflow for package maintainers
mrifk program: Decompiles Glulx files
structural-traversal library and test: Initial project template from stack
util library: Utilities
util-exception library: Exceptional utilities

Utilities

blindpass library, program and test: Password entry tool
cabalish program: Provides access to the cabal file data for shell scripts
easy-args library and test: Parses command line arguments
hocker library, programs and test: Interact with the docker registry and generate nix build instructions
hsbc program: A command line calculator
hx library: Haskell extras (missing utility functions).
nicify program: Pretty print the standard output of default `Show` instances.
nicify-lib library: Pretty print the standard output of default `Show` instances.
pong-server library and test: A simple embedded pingable server that runs in the background.
sh2md library, program and test: Record your shell session and print in the markdown format
Southpaw library: Assorted utility modules
una program: Universal un-archiver utility
yamlkeysdiff program: Compares the keys from two yaml files

Utility

alea program: a diceware passphrase generator
autoexporter library and program: Automatically re-export modules.
bento library: 🍱 Manage stateful components.
bisc program: A small tool that clears qutebrowser cookies.
cold-widow library, programs and test: File transfer via QR Codes.
debug-me program: secure remote debugging
dl-fedora program and test: Fedora image download tool
embla library: execute actions periodically while avoiding drift
exceptionfree-readfile library, tests and benchmark: An exception-free readFile for use with '+RTS -xc -RTS' projects
fcd library, program and test: A faster way to navigate directories using the command line.
fedora-img-dl program: Fedora image download tool
findhttp program: List http/html files
flow library and test: Write more understandable Haskell.
flow-er library and test: More directional operators
git-annex program: manage files with git, without checking their contents into git
git-repair program: repairs a damaged git repository
github-backup programs: backs up everything github knows about a repository, to the repository
github-release library and program: Upload files to GitHub releases.
gnome-desktop program: Randomly set a picture as the GNOME desktop background
gw program: ghcWithPackages cmdline util
hascal library and program: tiny calculator library and command-line program
hashrename program: Rename every file in a directory with his SHA1 hash.
haskades program: Utility to generate bindings for BlackBerry Cascades
hasql-url library and test: Parse PostgreSQL connection URI into Hasql.Connection Settings
herbalizer program: HAML to ERB translator
hinduce-missingh library: Utility functions
hsinstall library and program: Install Haskell software
hutton program: A program for the button on Reddit.
inventory library, program and test: Project statistics and definition analysis
JYU-Utils library: Some utility functions for JYU projects
keysafe program: back up a secret key securely to the cloud
lsfrom program and test: List dir files starting from a specific name
mbox-tools programs: A collection of tools to process mbox files
meta-misc library: Utility library providing miscellaneous meta-programming utilities.
monad-gen library: A simple monad for generating fresh integers
mustache2hs program: Utility to generate Haskell code from Mustache templates
native library, program and test: Native library manager for Windows
not-in-base library: Useful utility functions that only depend on base.
op library and test: Common operators encouraging large-scale easy reading
overhang library: Hang loose with your lambdas!
pagure-cli program: Pagure client
pinned-warnings library: Preserve warnings in a GHCi session
pkgtreediff library and program: Package tree diff tool
place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard
propellor library and programs: property-based host configuration management in haskell
pub programs: Pipe stdin to a redis pub/sub channel
puffytools library, program and test: A CLI assistant
rating-chgk-info library, programs, test and benchmark: Client for rating.chgk.info API and CSV tables (documentation in Russian)
rosa program: Query the namecoin blockchain
rosso library: General purpose utility library
route-generator program: Utility to generate routes for use with yesod-routes
servant-docs-simple library and test: Generate endpoints overview for Servant API
skeleton program: a tool to access the OSX keychain
strings library: Functions for working with strings, including Text, ByteString, etc.
sync-mht library, program, test and benchmark: Fast incremental file transfer using Merkle-Hash-Trees
tn library and program: A simple daily journal program
vflow-types library and tests: types for ingesting vflow data with aeson
Webrexp library and program: Regexp-like engine to scrap web data

Utils

alfred library: utility library for Alfred version 2
api-field-json-th library and test: option of aeson's deriveJSON
bitly-cli program: A command line tool to access bit.ly URL shortener.
bluetileutils program: Utilities for Bluetile
cabal-bounds library, program and test: A command line program for managing the dependency versions in a cabal file.
cabal-cargs library, program and test: A command line program for extracting compiler arguments from a cabal file.
cabal-lenses library: Lenses and traversals for the Cabal library.
CabalSearch program: Search cabal packages by name
cblrepo program: Tool to maintain a database of CABAL packages and their dependencies
cgrep program: Command line tool
clean-home program: Keep your home dir clean by finding old conf files
cltw program: Command line Twitter utility
confsolve program: A command line tool for resolving conflicts of file synchronizers.
csv-nptools programs: A collection of CSV tools
data-util library: utilities for handle data
dropsolve program: A command line tool for resolving dropbox conflicts. Deprecated! Please use confsolve.
ecu programs: Tools for automotive ECU development.
EditTimeReport program: Query language and report generator for edit logs.
email-validator program and tests: Perform basic syntax and deliverability checks on email addresses.
error-loc library: An error replacement with call-site metadata.
execs library and program: Tool to run stack exec prj-exe more easy
fishfood library, program and test: Calculates file-size frequency-distribution.
fordo program: Run a command on files with magic substituion support (sequencing and regexp)
fuzzytime library and program: A 'ten past six' style clock
Geodetic library: Geodetic calculations
GPX library: Parse GPX files
graphql-utils library: GraphQL Utils
gscholar-rss program: scrapes google scholar, provides RSS feed
haeredes program and tests: Confirm delegation of NS and MX records.
hascal library and program: tiny calculator library and command-line program
haskell-say library and program: Let the Haskell logo talk to your users!
hath program and tests: Hath manipulates network blocks in CIDR notation.
headroom library, program and tests: License Header Manager
hextra library: Generic and niche utility functions and more for Haskell.
hinfo library, program and test: Command Line App With Info on your Haskell App
hp2any-core library: Heap profiling helper library
hp2any-graph programs: ...
hp2any-manager program: A utility to visualise and compare heap profiles.
hsimport library, program and test: Extend the import list of a Haskell source file
htags program: A Haskell98 parsing tags program similar to ctags.
htsn program and tests: Parse XML files from The Sports Network feed.
htsn-common library: Display/logging facilities used by both htsn and htsn-import.
htsn-import program and tests: Import XML files from The Sports Network into an RDBMS.
hunp program: Unpacker tool with DWIM
jarfind library and program: Tool for searching java classes, members and fields in classfiles and JAR archives
json-tools programs: A collection of JSON tools
katt library, program and test: Client for the Kattis judge system.
kevin program: a dAmn ↔ IRC proxy
lat program: Tool to track security alerts on LWN
list-remote-forwards program and tests: List all remote forwards for mail accounts stored in a SQL database.
log2json library and program: Turn log file records into JSON.
mailbox-count program and tests: Count mailboxes in a SQL database.
make-package program: Make a cabalized package
minirotate program: Minimalistic file rotation utility
modsplit library and program: Haskell source splitter driven by special comments.
nptools programs: A collection of random tools
Nutri library: A little library to calculate nutrition values of food items.
ordinal library and test: Convert numbers to words in different languages.
OSM library: Parse OpenStreetMap files
PastePipe library and program: CLI for pasting to lpaste.net
pb program: pastebin command line application
pdfsplit program: split two-column PDFs, so there is one column per page
pointless-fun library: Some common point-free combinators.
practice-room program: Practice Room
Printf-TH library
radix program: Command-line tool for emitting numbers in various bases.
readline-statevar library: Readline with variables (setX/getY) wrapped in state vars
Referees library and program: A utility for computing distributions of material to review among reviewers.
revdectime program: A French revolutionary decimal time (metric) clock
rezoom program: Github resume generator
rhbzquery program and test: Bugzilla query tool
scotty-utils library: Scotty utils library
serokell-util library and test: General-purpose functions by Serokell
slugify library and test: Convert text into slugs.
sorty program: Sort lines per file size
squeeze library, program and test: A file-packing application.
stratum-tool program: Client for Stratum protocol
string-like library: A package that aims to provide a uniform interface to string-like types.
subtitles program: Modify SRT subtitle files.
temporary library and test: Portable temporary file and directory support
temporary-rc library: Portable temporary file and directory support for Windows and Unix, ...
temporary-resourcet library and test: Portable temporary files and directories with automatic deletion
tempus-fugit library, program and test: Programmers' time tracker
terminal-punch program and test: Simple terminal-based time tracker
thank-you-stars library, program and test: Give your dependencies stars on GitHub!
todos library and program: Easy-to-use TODOs manager.
toolshed library and test: Ill-defined library.
turtle-options library, program and test: Collection of command line options and parsers for these options
unicode-tricks library and test: Functions to work with unicode blocks more convenient.
unusable-pkg program: Utility construction of the graph depending unusable packages.
up program: Command-line tool to generate paths for moving upward in a file system
vigilance programs and test: An extensible dead-man's switch system
vt-utils library and test: Vector and Text utilities
wtk library: Wojcik Tool Kit
wtk-gtk library: GTK tools within Wojcik Tool Kit
Xec program: Gtk command launcher with identicon

Uzbl

uzbl-with-source library: Utility function for reading a source of loaded uzbl pages.

Validation

contracheck-applicative library: Validation types/typeclass based on the contravariance.
validation-selective library and tests: Lighweight pure data validation based on Applicative and Selective functors
valor library and test: Simple general structured validation library

Validity

genvalidity-criterion library and benchmark: Criterion benchmarks for generators
validity library and test: Validity typeclass
validity-aeson library and test: Validity instances for aeson
validity-bytestring library: Validity instances for bytestring
validity-containers library: Validity instances for containers
validity-path library and test: Validity instances for Path
validity-primitive library: Validity instances for primitive
validity-time library: Validity instances for time
validity-unordered-containers library: Validity instances for unordered-containers
validity-vector library: Validity instances for vector

Value

hs-server-starter library, program and test: Write a server supporting Server::Starter's protocol in Haskell
jason library, program and test: A fast JASONETTE-iOS JSON combinator library for haskell.
legion-discovery library, program and test: A discovery service based on Legion.
legion-extra library and test: Extra non-essential utilities for building legion applications.
signature library: Hmac sha256 signature json and http payload
wreq-helper library: Wreq response process

Vector

hw-packed-vector library, program, tests and benchmark: Packed Vector
hybrid-vectors library: Hybrid vectors e.g. Mixed Boxed/Unboxed vectors
ListLike library and test: Generalized support for list-like structures
perfect-vector-shuffle library, program and test: Library for performing vector shuffles
sparse library, tests and benchmark: A playground of sparse linear algebra primitives using Morton ordering
vector-builder library and test: Vector builder
vector-extras library: Utilities for the "vector" library
vector-shuffling library: Algorithms for vector shuffling
vinyl-vectors library and program: Vectors for vinyl vectors

Video

cut-the-crap library, program and test: Cuts out uninteresting parts of videos by detecting silences.
movie-monad program: Plays videos using GStreamer and GTK+.
vimeta library and program: Frontend for video metadata tagging tools

Video Polysemy

polysemy-video library

Vinyl

vinyl-loeb library: Loeb's theorem for extensible records.

Visual Programming

sifflet library, program and test: Simple, visual, functional language for learning about recursion.
sifflet-lib library: Library of modules shared by sifflet and its tests and its exporters.

Visualization

lightning-haskell library and tests: Haskell client for lightning-viz REST API
rigel-viz library and test: A mid-level wrapper for vega-lite
vega-view program: Easily view Vega or Vega-Lite visualizations.

Vulkan

easytensor-vulkan library: Use easytensor with vulkan-api.
vulkan-api library: Low-level low-overhead vulkan api bindings

Wai

wai-cors library and tests: CORS for WAI
wai-middleware-clacks library and test: GNU Terry Pratchett - Add the X-Clacks-Overhead Header to Wai Responses.
wai-middleware-rollbar library: Middleware that communicates to Rollbar.
wai-request-spec library and benchmark: Declarative request parsing

Water

SWMMoutGetMB library: A parser for SWMM 5 binary .OUT files

Web

accentuateus library: A Haskell implementation of the Accentuate.us API.
achille library and test: A library for building static site generators
acme-http library and programs: fastest Haskell PONG server in the world
activitypub library: ActivityPub Haskell Library
adblock2privoxy program: Convert adblock config files to privoxy format
adobe-swatch-exchange library and programs: parse Adobe Swatch Exchange files and (optionally) output .css files with the colors
advent-of-code-api library and test: Advent of Code REST API bindings and servant API
aeson library and test: Fast JSON parsing and encoding
aeson-attoparsec library and test: Embed an Attoparsec text parser into an Aeson parser
aeson-better-errors library: Better error messages when decoding JSON values.
aeson-coerce library: Initial project template from stack
aeson-combinators library, tests and benchmark: Aeson combinators for dead simple JSON decoding
aeson-commit library and test: Parse Aeson data with commitment
aeson-compat library and test: Compatibility layer for aeson
aeson-diff library, programs and tests: Extract and apply patches to JSON documents.
aeson-diff-generic library: Apply a json-patch to any haskell datatype.
aeson-filthy library and test: Several newtypes and combinators for dealing with less-than-cleanly JSON input.
aeson-flat library and test: Tools for creating flat JSON serializations
aeson-flatten library and test: JSON flatten for Aeson
aeson-flowtyped library and test: Create Flow type definitions from Haskell data types.
aeson-injector library and test: Injecting fields into aeson values
aeson-match-qq library and test: Declarative JSON matchers.
aeson-native library: Fast JSON parsing and encoding (deprecated)
aeson-picker library and test: Tiny library to get fields from JSON format
aeson-prefix library and test: Hiearchical prefixing for aeson
aeson-pretty library and program: JSON pretty-printing library and command-line tool.
aeson-quick library, test and benchmark: Quick JSON extractions with Aeson
aeson-result library: API Result for aeson
aeson-smart library: Smart derivation of Aeson instances
aeson-streams library: An HTTP client library for JSON-based APIs
aeson-toolkit library and test: A generalization of Aeson over Failure
aeson-typescript library and test: Generate TypeScript definition files from your ADTs
aeson-yaml library, program and test: Output any Aeson value as YAML (pure Haskell library)
airship library and test: A Webmachine-inspired HTTP library
airtable-api library and test: Requesting and introspecting Tables within an Airtable project.
alerta library: Bindings to the alerta REST API
alerts library: Alert messages for web applications
algebraic-prelude library and program: Algebraically structured Prelude
algolia library and test: A client implementing the Algolia search API
alternative-vector library: Use vectors instead of lists for many and some
alto library and program: Implement a menu experience fit for web users.
altsvc library and test: HTTP Alternative Services
amazon-products library and program: Connector for Amazon Products API
analyze-client library: Client for analyze service
android-lint-summary library, program and test: A pretty printer for Android Lint errors
Ansi2Html program: Convert ANSI Terminal Sequences to nice HTML markup
antagonist library and program: A web interface to Antisplice dungeons.
apecs-gloss library: Simple gloss renderer for apecs
apecs-physics library: 2D physics for apecs
apecs-physics-gloss library: Gloss rendering for apecs-physics
api-maker library and test: Package to make APIs
api-monobank library, program and test
api-rpc-factom library, program and test: RPC API client for Factom
api-rpc-pegnet library and test: simple json-rpc client for PegNet
api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
api-yoti library and test: Api bindings for Yoti services
apiary library and test: Simple and type safe web framework that generate web API documentation.
apiary-authenticate library: authenticate support for apiary web framework.
apiary-clientsession library: clientsession support for apiary web framework.
apiary-cookie library: Cookie support for apiary web framework.
apiary-eventsource library: eventsource support for apiary web framework.
apiary-helics library: helics support for apiary web framework.
apiary-http-client library: A http client for Apiary.
apiary-logger library: fast-logger support for apiary web framework.
apiary-memcached library: memcached client for apiary web framework.
apiary-mongoDB library: mongoDB support for apiary web framework.
apiary-persistent library: persistent support for apiary web framework.
apiary-purescript library: purescript compiler for apiary web framework.
apiary-redis library: redis support for apiary web framework.
apiary-session library: session support for apiary web framework.
apiary-websockets library: websockets support for apiary web framework.
apioiaf-client library and test: Consumer library for anapioficeandfire.com
apis library: A Template Haskell library for generating type safe API calls
arch-web library and test: Arch Linux official and AUR web interface binding
asap library and test: Atlassian Service Authentication Protocol
asn1-codec library and test: Encode and decode ASN.1
assert4hs-tasty library and test: Provider for tasty runner to run assert4hs tests
asset-map library and test: Asset map support for the JavaScript broccoli-asset-rev library.
async-ajax library: Crossbrowser async AJAX Bindings for GHCJS
async-extra library: Useful concurrent combinators
atlassian-connect-core library: Atlassian Connect snaplet for the Snap Framework and helper code.
atndapi library and test: An interface of ATND API
atom-basic library: Basic Atom feed construction
attic-schedule program and test: A script I use to run "attic" for my backups.
attoparsec-base64 library: Fetch only base64 characters, erroring in the attoparsec monad on failure
attoparsec-ip library and test: Parse IP data types with attoparsec
attoparsec-path library and test: Convenience bindings between path and attoparsec
attoparsec-uri library and test: URI parser / printer using attoparsec
aur-api library: ArchLinux AUR json v5 API
authenticate library: Authentication methods for Haskell web applications.
authenticate-kerberos library: Authentication methods for Haskell web applications.
authenticate-ldap library: LDAP authentication for Haskell web applications.
authenticate-oauth library: Library to authenticate with OAuth for Haskell web applications.
awesomium library: High-level Awesomium bindings.
awesomium-glut library: Utilities for using Awesomium with GLUT.
awesomium-raw library: Low-level Awesomium bindings.
aws library, programs and tests: Amazon Web Services (AWS) for Haskell
aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
aws-kinesis library and test: Bindings for Amazon Kinesis
aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
aws-route53 library: Amazon Route53 DNS service plugin for the aws package.
aws-sdk-text-converter library and test: The text converter for aws-sdk.
aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
aws-simple library: Dead simple bindings to commonly used AWS Services
aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
axiom library: Web EDSL for running in browsers and server nodes using transient
azure-acs library: Windows Azure ACS
azure-email library: send email with microsoft azure
azure-servicebus library: Haskell wrapper over Microsoft Azure ServiceBus REST API
ballast library and test: Shipwire API client
bamboo library: A blog engine on Hack
bamboo-launcher program: bamboo-launcher
bamboo-plugin-highlight library: A highlight middleware
bamboo-plugin-photo library: A photo album middleware
bamboo-theme-blueprint library: bamboo blueprint theme
bamboo-theme-mini-html5 library: bamboo mini html5 theme
barley program: A web based environment for learning and tinkering with Haskell
base58address library and test: Parsing and serialization for Base58 addresses (Bitcoin and Ripple)
basement : Foundation scrap box of array & string
bdo library and program: Update CSS in the browser without reloading the page.
bech32 library, program and test: Implementation of the Bech32 cryptocurrency address format (BIP 0173).
bech32-th library and test: Template Haskell extensions to the Bech32 library.
binary-instances library and test: Orphan instances for binary
bindings-libg15 library: Bindings to libg15
bird library and program: A simple, sinatra-inspired web framework.
Bitly library: A library to access bit.ly URL shortener.
bitly-cli program: A command line tool to access bit.ly URL shortener.
bittrex library and program: Bindings for the Bittrex API
bitx-bitcoin library and tests: A Haskell library for working with the BitX bitcoin exchange.
blatex program: Blog in LaTeX
blaze-bootstrap library: Blaze helper functions for bootstrap pages
blaze-colonnade library and test: blaze-html backend for colonnade
blaze-html-contrib library: Some contributions to add handy things to blaze html.
blaze-shields library: create svg by Haskell
blazeT library: A true monad (transformer) version of the blaze-markup and blaze-html libraries
blockhash library, program and test: Blockhash perceptual image hash algorithm
Blogdown library, program, test and benchmark: A markdown-like markup language designed for blog posts
blogination library and program: Very simple static blog software
BlogLiterately library and program: A tool for posting Haskelly articles to blogs
BlogLiterately-diagrams library and program: Include images in blog posts with inline diagrams code
bloodhound-amazonka-auth library and test: Adds convenient Amazon ElasticSearch Service authentication to Bloodhound.
bluemix-sdk library: Bindings to Bluemix APIs
BluePrintCSS library: Html document layout library.
blunt library and program: Convert between pointfree and pointful expressions.
board-games library, program, test and benchmarks: Three games for inclusion in a web server
boomange program: A bookmarks manager with an HTML generator
boots-cloud library: Factory for quickly building a microservice
boots-web library: Factory for quickly building a web application
bootstrap-types library: Bootstrap CSS Framework type-safe interface
boring-game library, program and test: An educational game
botpp library and program: Build tool for Lambdabot
bower-json library and test: Read bower.json from Haskell
brainheck library, program and benchmark: Brainh*ck interpreter in haskell
breve program: a url shortener
browscap library: A reader and interface for the Browser Capabilities Project data files.
bugsnag-haskell library, programs and tests: Bugsnag error reporter for Haskell
bugsnag-hs library and test: A Bugsnag client for Haskell.
bugzilla library and program: A Haskell interface to the Bugzilla native REST API
bugzilla-redhat library and program: A Haskell interface to the Bugzilla native REST API
bulmex library and test: Reflex infused with bulma (css)
Buster program and test: Hits a set of urls periodically to bust caches
calamity library: A library for writing discord bots in haskell
calamity-commands library: A library for declaring, parsing, and invoking text-input based commands
campfire library: Haskell implementation of the Campfire API
canteven-template library: A few utilites and helpers for using Template Haskell in your projects.
car-pool program: Simple web-server for organizing car-pooling for an event
cascading library: DSL for HTML CSS (Cascading Style Sheets)
Cassava library and test: A CSV parsing and encoding library
cassava library and test: A CSV parsing and encoding library
cassava-megaparsec library and test: Megaparsec parser of CSV files that plays nicely with Cassava
cassava-records library and test: Auto-generation of records data type.
cayene-lpp library and test: Cayenne Low Power Payload
cayenne-lpp library and test: Cayenne Low Power Payload
cgi-utils library: Simple modular utilities for CGI/FastCGI (sessions, etc.)
chakra library, program and test: A REST Web Api server template for building (micro)services.
charade library and program: Rapid prototyping websites with Snap and Heist
chatwork library, program and test: The ChatWork API in Haskell
cheapskate-lucid library: Use cheapskate with Lucid
cheapskate-terminal library, program and test: Initial project template from stack
chitauri program and test: Helper for the Major System
chu2 library: FFI for Chu2 Agda Web Server Interface
CHXHtml library: A W3C compliant (X)HTML generating library
cielo library and test: Cielo API v3 Bindings for Haskell
circlehs library: The CircleCI REST API for Haskell
cisco-spark-api library, program and test: DEPRECATED in favor of webex-teams-api
Clash-Royale-Hack-Cheats library and tests: spam
classy-miso library, program and test: Typeclass based support for Miso, the Tasty Web Framework for Haskell.
clay library and test: CSS preprocessor as embedded Haskell.
clientsession library, program and test: Securely store session data in a client-side cookie.
clit library and program: Post tweets from stdin
clock-extras library and test: A couple functions that probably should be in the 'clock' package
cmark-lucid library: Use cmark with Lucid
codepad library: Submit and retrieve paste output from CodePad.org.
coinbase-exchange library, program and test: Connector library for the coinbase exchange.
coinbase-pro library and programs: Client for Coinbase Pro
colonnade library and test: Generic types and functions for columnar encoding and decoding
colorless library and test: Colorless | The Programmatic IDL
colorless-http-client library: Http Client addon for Colorless
colorless-scotty library: Scotty server add-on for Colorless
coltrane library: A jazzy, minimal web framework for Haskell, inspired by Sinatra.
columnar library: A CSV toolkit based on cassava and enum-text
compact-mutable library and test: Mutable arrays living on the compact heap
composable-associations library and test: Types and helpers for composing types into a single larger key-value type.
composable-associations-aeson library and tests: Aeson ToJSON/FromJSON implementation for the types of composable-associations
concur-core library: A client side web UI framework for Haskell. Core framework.
container-builder library: Functions for building containers from a known number of elements
context-http-client library and test: Modify HTTP requests/responses using context
context-wai-middleware library and test: Add request-specific (or not!) context to your WAI applications
cookie library and test: HTTP cookie parsing and rendering
cookies library: web cookies
copr library and test: Haskell interface to the Fedora Copr system
couchdb-enumerator library and test: Couch DB client library using http-enumerator and aeson
country library and test: Country data type and functions
cqrs-example program: Example for cqrs package
crawlchain library and tests: Simulation user crawl paths
craze library, program and tests: HTTP Racing Library
crc library, test and benchmark: Implements various Cyclic Redundancy Checks (CRC)
cryptocompare library and test: Haskell wrapper for the cryptocompare API
cryptoids-class library: Typeclass-based interface to cryptoids
cryptoids-types library: Shared types for encrypting internal object identifiers before exposure
cryptsy-api library: Bindings for Cryptsy cryptocurrency exchange API.
css-selectors library and test: Parsing, rendering and manipulating css selectors in Haskell.
css-text library and test: CSS parser and renderer.
curl-aeson library: Communicate with HTTP service using JSON
curl-cookiejar library: Parsing and pretty-printing of cURL/wget cookie jars
curryer library: A simple HTTP server framework
daemonize-doublefork library: Start background daemons by double-forking
darcsden programs: Darcs repository UI and hosting/collaboration app (hub.darcs.net branch).
DarcsHelpers library: Code used by Patch-Shack that seemed sensible to open for reusability
data-check library and test: Library for checking and normalization of data (e.g. from web forms)
data-object-yaml library and program: Serialize data to and from Yaml files (deprecated)
datarobot library and test: Client for DataRobot API
dataurl library and test: Handle data-urls
DAV library and program: RFC 4918 WebDAV support
deepl library and program: Call DeepL to translate you files
delicious library: Accessing the del.icio.us APIs from Haskell (v2)
dgs library: Haskell front-end for DGS' bot interface
digestive-bootstrap library: Speed up form designing using digestive functors and bootstrap
digestive-foundation-lucid library: Speed up form designing using digestive functors and foundation
digestive-functors library and test: A practical formlet library
digestive-functors-aeson library and test: Run digestive-functors forms against JSON
digestive-functors-blaze library: Blaze frontend for the digestive-functors library
digestive-functors-happstack library: Happstack backend for the digestive-functors library
digestive-functors-heist library: Heist frontend for the digestive-functors library
digestive-functors-hsp library: HSP support for digestive-functors
digestive-functors-lucid library: Lucid frontend for the digestive-functors library
digestive-functors-scotty library: Scotty backend for the digestive-functors library
digestive-functors-snap library: Snap backend for the digestive-functors library
digitalocean-kzs library and tests: digitalocean api for haskell
dingo-core library: Dingo is a Rich Internet Application platform based on the Warp web server.
dingo-example program: Dingo Example
dingo-widgets library: Dingo Widgets
discogs-haskell library and test: Client for Discogs REST API
discord-register library, program and test: Discord verification bot
disjoint-containers library and tests: Disjoint containers
distance library: Useful distance datatype and functions
ditto library: ditto is a type-safe HTML form generation and validation library
ditto-lucid library: Add support for using lucid with Ditto
dixi library, program and test: A wiki implemented with a firm theoretical foundation.
doc-review programs: Document review Web application, like http://book.realworldhaskell.org/
DOM library: DOM Level 2 bindings for the WebBits package.
dom-events library and test: DOM Events expressed as Haskell types
dom-selector library and test: DOM traversal by CSS selectors for xml-conduit package
domplate library: A simple templating library using HTML5 as its template language.
dormouse-client library and test: Simple, type-safe and testable HTTP client
dormouse-uri library and test: Library for type-safe representations of Uri/Urls
dozens library: dozens api library
dsc library and test: Helper functions for setting up Double Submit Cookie defense for forms
duplo library, program and test: Frontend development build tool
dustme library, program and test: Initial project template from stack
easy-api library: Utility code for building HTTP API bindings more quickly.
ede library, program and test: Templating language with similar syntax and features to Liquid or Jinja2.
Eight-Ball-Pool-Hack-Cheats library and tests: spam
ekg-cloudwatch library: An ekg backend for Amazon Cloudwatch
ekg-prometheus-adapter library and test: Easily expose your EKG metrics to Prometheus
elm-bridge library and tests: Derive Elm types and Json code from Haskell types, using aeson's options
elm-export library and test: A library to generate Elm types from Haskell source.
elm-export-persistent library: elm-export persistent entities
elm-hybrid library and test: Combine Elm with Haskell for data based applications
elm-websocket library, programs and test: Generate ELM code from a Wai websocket application.
elm-yesod library: The Elm language Yesod compatibility module.
elo library and test: Elo Rating Library
ema library and program: Static site generator library with hot reload
email-validate-json library: Aeson instances for email-validate
engine-io library: A Haskell implementation of Engine.IO
engine-io-growler library
envelope library and test: Defines generic 'Envelope' type to wrap reponses from a JSON API.
esotericbot library and program: Esotericbot is a sophisticated, lightweight IRC bot.
espial library, programs and test: Espial is an open-source, web-based bookmarking server.
ethereum-analyzer-webui library and program: A web frontend for ethereum-analyzer
ety library and program: Random etymology online entry.
every library: Run a process every so often.
exh library and test: A library for crawling exhentai
extemp program: automated printing for extemp speakers
extralife library: API Client for ExtraLife team and user data
Facebook-Password-Hacker-Online-Latest-Version library and tests: spam
factual-api library: A driver for the Factual API
fast-mult library: Numeric type with asymptotically faster multiplications.
fastly library and test: A highly experimental Fastly API client.
fay library and programs: A compiler for Fay, a Haskell subset that compiles to JavaScript.
fay-builder library: Compile Fay code on cabal install, and ad-hoc recompile during development
fay-dom library: DOM FFI wrapper library for Fay
fay-geoposition library: W3C compliant implementation of GeoPosition API.
fay-jquery library: jQuery bindings for Fay.
fay-simplejson library: SimpleJSON library for Fay.
fay-uri library: Persistent FFI bindings for using jsUri in Fay
fay-websockets library: Websockets FFI library for Fay
fb library and test: Bindings to Facebook's API.
fb-persistent library: Provides Persistent instances to Facebook types.
fbmessenger-api library, program and test: High-level bindings to Facebook Messenger Platform API
fckeditor library: Server-Side Integration for FCKeditor
feature-flipper library and test: A minimally obtrusive feature flag library
feature-flipper-postgres library and test: A minimally obtrusive feature flag library
fedora-packages library and tests: Haskell interface to the Fedora Packages webapp API.
feed-cli program: A simple command line interface for creating and updating feeds like RSS
feed-collect library: Watch RSS/Atom feeds (and do with them whatever you like).
feed-translator program: Translate syndication feeds
feed2twitter library and program: Send posts from a feed to Twitter
FermatsLastMargin program: Annotate ps and pdf documents
fernet library, program and test: Generate and verify HMAC-based authentication tokens.
ffeed library and programs: Haskell binding to the FriendFeed API
ficketed program: update statically hosted file in a push stule through socketed
fields-json library: Abusing monadic syntax JSON objects generation.
fileplow library and test: Library to process and search large files or a collection of files
filter-logger library, programs and test: Filterable request logging wai middleware. Change how data is logged and when.
Finance-Quote-Yahoo library: Obtain quote data from finance.yahoo.com
Finance-Treasury library: Obtain Treasury yield curve data
firefly library: A simple HTTP server framework
firefly-example program: A simple example using Firefly
fixed-width library: Fixed width subsets of an Int64/Word64.
flags-applicative library and test: Applicative flag parsing
flamethrower library: A template engine for HTML
flickr library and programs: Haskell binding to the Flickr API
flink-statefulfun library: Flink stateful functions SDK
flowdock library: Flowdock client library for Haskell
flowdock-rest library and test: Flowdock REST API
fluffy program: A simple web application as a online practice website for XDU SE 2017 fall SPM.
fluid-idl library and test: Code-generated, Auto-versioned, & Smart Web APIs
fluid-idl-http-client library: Http Client addon for Fluid
fluid-idl-scotty library: Scotty server add-on for Fluid
fn library and test: A functional web framework.
fn-extra library: Extras for Fn, a functional web framework.
follow library, program and test: Haskell library to follow content published on any subject.
follower program: Follow Tweets anonymously
font-awesome-type library: A Font Awesome data type enumerating all icon classes
foobar library, program and test: Initial project template from stack
forecast-io library: A Haskell library for working with forecast.io data.
forma library and test: Parse and validate forms in JSON format
format-numbers library and test: Various number formatting functions
formlets library: Formlets implemented in Haskell
formlets-hsp library: HSP support for Formlets
Fortnite-Hack-Cheats-Free-V-Bucks-Generator library and tests: spam
frame library and program: A simple web framework.
frame-markdown library: A markdown to Frame GUI writer for Pandoc
freer-simple-http library and test: Make HTTP requests with freer-simple!
freesound library and test: Access the Freesound Project database
friendly-time library and test: Print time information in friendly ways
front library and programs: A reactive frontend web framework
ftp-client library and test: Transfer files with FTP and FTPS
ftp-client-conduit library and test: Transfer file with FTP and FTPS with Conduit
funbot-client library: Report events to FunBot over a JSON/HTTP API.
funbot-ext-events library: Interact with FunBot's external events.
funbot-git-hook program: Git hook which sends events to FunBot.
gc-monitoring-wai library: a wai application to show GHC.GCStats
gdax library, program and test: API Wrapping for Coinbase's GDAX exchange.
geek library: Geek blog engine
geek-server library and program: Geek blog engine server
gelatin-freetype2 library and test: FreeType2 based text rendering for the gelatin realtime rendering system.
gelatin-shaders library: Gelatin's OpenGL shaders.
gen-imports library: Code to generate instances for the package "ghc-instances"
gendocs library and test: Library for generating interface documentation from types
gentlemark library and test: Gentle markup language
geo-resolver library and test: Performs geo location lookups and parses the results
GeocoderOpenCage library: Geocoder and Reverse Geocoding Service Wrapper
geolite-csv library and test: Geolite CSV Parser
getemx program: Fetch from emusic using .emx files
ghc-instances library: Easily import all instances contained in GHC distributed libraries
ghcjs-ajax library: Crossbrowser AJAX Bindings for GHCJS
ghcjs-base library and test: base library for GHCJS
ghcjs-base-stub library: Allow GHCJS projects to compile under GHC and develop using intero.
ghcjs-codemirror library: Installs CodeMirror JavaScript files
ghcjs-dom library: DOM library that supports both GHCJS and GHC
ghcjs-dom-hello library and programs: GHCJS DOM Hello World, an example package
ghcjs-dom-jsaddle library: DOM library that supports both GHCJS and GHC using jsaddle
ghcjs-dom-jsffi : DOM library using JSFFI and GHCJS
ghcjs-dom-webkit library: DOM library that supports both GHCJS and WebKitGTK
ghcjs-fetch library and test: GHCJS bindings for the JavaScript Fetch API
ghcjs-hplay library: Client-side web EDSL for transient nodes running in the web browser
ghcjs-perch library: GHCJS version of Perch library.
ghcjs-vdom library and programs: Virtual-dom bindings for GHCJS
ghcjs-websockets library: Deprecated: use ghcjs-base's native websockets
ghcjs-xhr library: XmlHttpRequest ("AJAX") bindings for GHCJS
ghclive library and program: Interactive Haskell interpreter in a browser.
gingersnap library and test: Consistent and safe JSON APIs with snap-core and (by default) postgresql-simple
giphy-api library, program and test: Giphy HTTP API wrapper and CLI search tool.
gist program: A reliable command-line client for gist.github.com
github-post-receive library: GitHub webhooks library
gitlab-api library and test: Gitlab Web API
glabrous library and test: A template DSL library
glazier-react library: ReactJS binding using Glazier.Command.
glazier-react-examples program: Examples of using glazier-react
glazier-react-widget library: Generic widget library using glazier-react
godot-haskell library: Haskell bindings for the Godot game engine API
google-html5-slide program: Google HTML5 Slide generator
google-isbn library
google-mail-filters library and test: Write GMail filters and output to importable XML
google-maps-geocoding library: Bindings to the Google Geocoding API (formerly Maps Geocoding API)
google-oauth2-for-cli library and test: Get Google OAuth2 token for CLI tools
google-search library: EDSL for Google and GMail search expressions
google-server-api library: Google APIs for server to server applications
google-static-maps library: Bindings to the Google Maps Static API (formerly Static Maps API)
google-translate library: Google Translate API bindings
googleplus library: Haskell implementation of the Google+ API v1
gopro-plus library and test: GoPro Plus Client API.
gore-and-ash-sync library: Gore&Ash module for high level network synchronization
graphql-api library, programs, tests and benchmark: GraphQL API
graylog library and test: Support for graylog output.
growler library: A revised version of the scotty library that attempts to be simpler and more performant.
gscholar-rss program: scrapes google scholar, provides RSS feed
gym-http-api library and program: REST client to the gym-http-api project
h-booru library and program: Haskell library for retrieving data from various booru image sites
habit library and program: Haskell message bot framework
hablo library, program and test: A minimalist static blog generator
hablog library and program: A blog system
hack library: a Haskell Webserver Interface
hack-contrib library: Hack contrib
hack-contrib-press library: Hack helper that renders Press templates
hack-frontend-happstack library: hack-frontend-happstack
hack-frontend-monadcgi library: Allows programs written against MonadCGI to run with any hack handler. (deprecated)
hack-handler-cgi library: Hack handler using CGI protocol. (deprecated)
hack-handler-epoll library: hack handler implementation using epoll
hack-handler-evhttp library: Hack EvHTTP (libevent) Handler
hack-handler-fastcgi library: Hack handler direct to fastcgi (deprecated)
hack-handler-happstack library: Hack Happstack server handler
hack-handler-hyena library: Hyena hack handler
hack-handler-kibro library: Hack Kibro handler
hack-handler-simpleserver library: A simplistic HTTP server handler for Hack. (deprecated)
hack-middleware-cleanpath library: Applies some basic redirect rules to get cleaner paths. (deprecated)
hack-middleware-clientsession library: Middleware for easily keeping session data in client cookies. (deprecated)
hack-middleware-gzip library: Automatic gzip compression of responses. (deprecated)
hack-middleware-jsonp library: Automatic wrapping of JSON responses to convert into JSONP. (deprecated)
hack2 library: a Haskell Webserver Interface (V2)
hack2-contrib library: Hack2 contrib
hack2-contrib-extra library: Hack2 contrib extra
hack2-handler-happstack-server library: Hack2 Happstack server handler
hack2-handler-mongrel2-http library: Hack2 Mongrel2 HTTP handler
hack2-handler-snap-server library: Hack2 Snap server handler
hack2-handler-warp library: Hack2 warp handler
hack2-interface-wai library: Hack2 interface to WAI
hackage2twitter program: Send new Hackage releases to Twitter
hackernews library, programs and test: API for Hacker News
haggis library and program: A static site generator with blogging/comments support
Haggressive library and test: Aggression analysis for Tweets on Twitter
hails library, program and test: Multi-app web platform framework
hails-bin program: Dynamic launcher of Hails applications
hairy library, program, test and benchmark: A JSON REST API
hakismet library: Akismet spam protection library
hakyll library, programs and test: A static website compiler library
hakyll-agda library: Wrapper to integrate literate Agda files with Hakyll
hakyll-alectryon library: Hakyll extension for rendering Coq code using Alectryon
hakyll-blaze-templates library: Blaze templates for Hakyll
hakyll-contrib library and program: Extra modules for the hakyll website compiler
hakyll-contrib-csv library and test: Generate Html tables from Csv files
hakyll-contrib-elm library and program: Compile Elm code for inclusion in Hakyll static site.
hakyll-contrib-hyphenation library: automatic hyphenation for Hakyll
hakyll-contrib-i18n library and program: A Hakyll library for internationalization.
hakyll-contrib-links library and test: A hakyll library that helps maintain a separate links database.
hakyll-dhall library and program: Dhall compiler for Hakyll
hakyll-dir-list library: Allow Hakyll to create hierarchical menues from directories.
hakyll-elm library: Hakyll wrapper for the Elm compiler.
hakyll-favicon library, program and test
hakyll-filestore library: FileStore utilities for Hakyll
hakyll-images library and test: Hakyll utilities to work with images
hakyll-ogmarkup library: Integrate ogmarkup document with Hakyll
hakyll-process library: Hakyll compiler for arbitrary external processes.
hakyll-R library: A package allowing to write Hakyll blog posts in Rmd
hakyll-sass library: Hakyll SASS compiler over hsass
hakyll-series library: Adds series functionality to hakyll
hakyll-shakespeare library: Hakyll Hamlet compiler
hakyll-shortcode library and test: A shortcode extension module for Hakyll
hakyll-shortcut-links library and test: Use shortcut-links in markdown file for Hakyll
hakyll-typescript library and test: Typescript and javascript hakyll compilers.
hal library and test: A runtime environment for Haskell applications running on AWS Lambda.
halvm-web program: A simple, static HaLVM web server
hamlet library: Haml-like template files that are compile-time checked (deprecated)
HAppS-Data library: HAppS data manipulation libraries
happs-hsp-template library: Utilities for using HSP templates in HAppS applications.
HAppS-IxSet library
HAppS-Server library: Web related tools and services.
HAppS-State library: Event-based distributed state.
happs-tutorial program: A Happstack Tutorial that is its own web 2.0-type demo.
HAppS-Util library: Web framework
HAppSHelpers library: OBSOLETE. Please use happstack-helpers
happstack library and program: The haskell application server stack + code generation
happstack-auth library: A Happstack Authentication Suite
happstack-authenticate library: Happstack Authentication Library
happstack-clientsession library: client-side session data
happstack-contrib library and program: Web related tools and services.
happstack-data library and program: Happstack data manipulation libraries
happstack-dlg library: Cross-request user interactions for Happstack
happstack-facebook library and program: A package for building Facebook applications using Happstack
happstack-fastcgi library: Happstack extension for use with FastCGI.
happstack-hamlet library: Support for Hamlet HTML templates in Happstack
happstack-heist library: Support for using Heist templates in Happstack
happstack-hsp library: Support for using HSP templates in Happstack
happstack-hstringtemplate library: Support for using HStringTemplate in Happstack
happstack-ixset library and program: Efficient relational queries on Haskell sets.
happstack-jmacro library: Support for using JMacro with Happstack
happstack-lite library: Happstack minus the useless stuff
happstack-monad-peel library: monad-peel instances for Happstack types
happstack-plugins library: The haskell application server stack + reload
happstack-server test: Web related tools and services.
happstack-server-tls library: extend happstack-server with https:// support (TLS/SSL)
happstack-server-tls-cryptonite library: Extend happstack-server with native HTTPS support (TLS/SSL)
happstack-state library and program: Event-based distributed state.
happstack-static-routing library: Support for static URL routing with overlap detection for Happstack.
happstack-util library and program: Web framework
happstack-yui library: Utilities for using YUI3 with Happstack.
haroonga-httpd program: Yet another Groonga http server.
harvest-api library and test: Bindings for Harvest API
hashids library and test: Hashids generates short, unique, non-sequential ids from numbers.
haskeline-repl library
haskell-abci library and program: Haskell Application BlockChain Interface (ABCI) Server Library
haskell-bitmex-client library and program: Complete BitMEX Client
haskell-bitmex-rest library and test: Auto-generated bitmex API Client
haskell-fake-user-agent library: Simple library for retrieving current user agent strings
haskell-google-trends library: Simple library for accessing Google Trends
haskell-kubernetes library: Haskell bindings to the Kubernetes API (via swagger-codegen)
haskell-proxy-list library: Simple library for retrieving proxy servers info from https://proxy-list.org
haskmon library: A haskell wrapper for PokeAPI.co (www.pokeapi.co)
haskoon library: Web Application Abstraction
haskoon-httpspec library: Integrating HttpSpec with Haskoon
haskoon-salvia library: Integrating HttpSpec with Haskoon
haskyapi library, program and test: HTTP server
hasql-generic library: Generic encoder and decoder deriving for Hasql
hasql-queue library, programs and test: A PostgreSQL backed queue
hasql-simple library: A somewhat opinionated "simpler" API to hasql
haste program: A universal pastebin tool, written in Haskell.
haste-app library: Framework for type-safe, distributed web applications.
haste-compiler programs: Haskell To ECMAScript compiler
haste-gapi library: Google API bindings for the Haste compiler
haste-lib library: Base libraries for haste-compiler.
haste-markup library: A port of blaze-markup and blaze-html to Haste
haste-perch library: Create, navigate and modify the DOM tree with composable syntax, with the haste compiler
haste-prim library: Low level primitives for the Haste compiler.
Hastodon library: mastodon client module for Haskell
haveibeenpwned library and program: Library for checking for weak/compromised passwords.
hawitter program: A twitter client for GTK+. Beta version.
Hawk library: Haskell Web Application Kit
haxl-amazonka library: Haxl data source for accessing AWS services through amazonka.
haxy library: A simple HTTP proxy server library
hbro library and program: Minimal extensible web-browser
hbro-contrib library and program: Third-party extensions to hbro.
hcheat library: A collection of code cheatsheet
hdigest library: Server-side HTTP Digest (RFC2617) in the CGI monad
heckle library and program: Jekyll in Haskell (feat. LaTeX)
hedgehog-checkers library and test
hedgehog-checkers-lens library and test
hedis-namespace library, program and test: Initial project template from stack
heist library, test and benchmark: An Haskell template system supporting both HTML5 and XML.
heist-aeson library: Use JSON directly from Heist templates.
heist-async library: Adding support for asynchronous updates ("AJAX") with heist
helium-overture library: A backwards-compatible, modern replacement for the Prelude.
hermes library and programs
heroku library and test: helpers for deploying to Heroku
herringbone library: A library for compiling and serving static web assets.
herringbone-embed library: Embed preprocessed web assets in your executable with Template Haskell.
herringbone-wai library: Wai adapter for the Herringbone web asset preprocessor.
heterocephalus library and tests: A type-safe template engine for working with front end development tools
HFitUI library, program and test: The library for generating a graphical interface on the web
hgis library and test: Library and for GIS with Haskell
hharp library: Binding to libharp
highjson library, test and benchmark: Spec based JSON parsing/serialisation
highjson-swagger library and test: Derive swagger instances from highjson specs
highjson-th library and test: Template Haskell helpers for highjson specs
hipbot library: A library for building HipChat Bots
hipchat-hs library: Hipchat API bindings in Haskell
hissmetrics library: Unofficial API bindings to KISSmetrics.
HJScript library: HJScript is a Haskell EDSL for writing JavaScript programs.
hjsmin library, program and test: Haskell implementation of a javascript minifier
hkdf library and test: Implementation of HKDF (RFC 5869)
hkt library and test: A library for higher kinded types.
hlongurl library and program: Library and utility interfacing to longurl.org
hls-exactprint-utils library: Common utilities to interaction between ghc-exactprint and HLS plugins.
horname library and program: Rename function definitions returned by SMT solvers
hourglass-orphans library and test: Orphan Aeson instances to hourglass
hpaste program: Haskell paste web site.
hpasteit program: A command-line client for hpaste.org
hplayground library: monadic, reactive Formlets running in the Web browser
hprox program: a lightweight HTTP proxy server, and more
hquery library and tests: A query language for transforming HTML5
hreq-client library, program and tests: A Type dependent Highlevel HTTP client library.
hreq-conduit library and tests: Conduit streaming support for Hreq.
hreq-core library and test: Core functionality for Hreq Http client library
hs-brotli library and test: Compression and decompression in the brotli format
hs-duktape library and test: Haskell bindings for a very compact embedded ECMAScript (JavaScript) engine.
hs-nombre-generator program: Name generator.
hs-rs-notify library, program and test: ...
hs-scrape library and test: Simple and easy web scraping and automation in Haskell.
hs-twitter library: Haskell binding to the Twitter API
hS3 library and program: Interface to Amazon's Simple Storage Service (S3)
hsakamai library, program and test: Akamai API(Edgegrid and Netstorage)
hsaml2 library and test: OASIS Security Assertion Markup Language (SAML) V2.0
hScraper library: A Haskell library to scrape and crawl web-pages
hscuid library, program and test: Collision-resistant IDs
hsebaysdk library: Haskell eBay SDK
hsforce library and test: Salesforce API Client
hSimpleDB library: Interface to Amazon's SimpleDB service.
hsoz library, programs and test: Iron, Hawk, Oz: Web auth protocols
hsp library: Haskell Server Pages is a library for writing dynamic server-side web pages.
hsp-cgi library: Facilitates running Haskell Server Pages web pages as CGI programs.
hspec-hashable library and test: Initial project template from stack
hspec-pg-transact library: Helpers for creating database tests with hspec and pg-transact
hspec-snap library and test: A library for testing with Hspec and the Snap Web Framework
hspec-stack-rerun library: Simple project template from stack
hspec-webdriver library: Write end2end web application tests using webdriver and hspec
hsreadability library and test: Access to the Readability API.
hsx-jmacro library: hsp+jmacro support
hsx-xhtml library: XHTML utilities to use together with HSX.
HsYAML-aeson library: JSON to YAML Adapter
html library: HTML combinator library
html-charset library, program and tests: Determine character encoding of HTML documents/fragments
html-conduit library and test: Parse HTML documents using xml-conduit datatypes.
html-kure library: HTML rewrite engine, using KURE.
html-rules library: Perform traversals of HTML structures using sets of rules.
html-validator-cli library, program and tests: A command-line interface for https://validator.w3.org/
http-accept library: Functions for working with HTTP Accept headers
http-api-data library and test: Converting to/from HTTP API data like URL pieces, headers and query parameters.
http-attoparsec library: Attoparsec parsers for http-types.
http-client-streams library: http-client for io-streams supporting openssl
http-common library: Common types for HTTP clients and servers
http-conduit library and test: HTTP client package with conduit interface and HTTPS support.
http-conduit-browser library and test: Browser interface to the http-conduit package
http-conduit-downloader library: HTTP downloader tailored for web-crawler needs.
http-date library and tests: HTTP Date parser/formatter
http-encodings library: A library for encoding and decoding bodies of HTTP messages
http-enumerator library and program: HTTP client package with enumerator interface and HTTPS support. (deprecated)
http-grammar library: Attoparsec-based parsers for the RFC-2616 HTTP grammar rules.
http-io-streams library: HTTP and WebSocket client based on io-streams
http-kinder library and test: Generic kinds and types for working with HTTP
http-link-header library, test and benchmark: A parser and writer for the HTTP Link header per RFC 5988
http-listen library: Listen to HTTP requests and handle them in arbitrary ways.
http-media library and test: Processing HTTP Content-Type and Accept headers
http-proxy library, programs and tests: A library for writing HTTP and HTTPS proxies
http-query library: Simple http queries
http-reverse-proxy test: Reverse proxy HTTP requests, either over raw sockets or with WAI
http-rfc7807 library and test: RFC7807 style response messages
http-streams library and test: An HTTP client using io-streams
http-test library and program: Test framework for HTTP APIs
http-trace library and program: Tracking http redirects
http-types library and tests: Generic HTTP types for Haskell (for both client and server code).
http2-client library and test: A native HTTP2 client library.
http2-client-exe program: A command-line http2 client.
httpd-shed library and program: A simple web-server with an interact style API
httpspec library: Specification of HTTP request/response generators and parsers
hup library, program and tests: Upload packages or documentation to a hackage server
hw-aws-sqs-conduit library and test: AWS SQS conduit
hweblib library, test and benchmark: Haskell Web Library
hworker-ses library: Library for sending email with Amazon's SES and hworker
hxweb library: Minimal webframework using fastcgi, libxml2 and libxslt.
Hydrogen library, program and test: The library for generating a WebGL scene for the web
hyperdrive library and program: a fast, trustworthy HTTP(s) server built
hyperpublic library: A thin wrapper for the Hyperpublic API
hzaif library, program and test: This package is Zaif Exchange Api wrapper
hzulip library and test: A haskell wrapper for the Zulip API.
ical library, program and test: iCalendar format parser and org-mode converter.
icepeak library, programs and test: A fast JSON document store with push notification support.
iconv-typed library and test: Type safe iconv wrapper
ig library: Bindings to Instagram's API.
imgurder library and program: Uploader for Imgur
imm library and programs: Execute arbitrary actions for each item from RSS/Atom feeds
indieweb-algorithms library and test: A collection of implementations of IndieWeb algorithms.
informative library and program: A yesod subsite serving a wiki.
inquire program: Console client for encyclopedias
insert-ordered-containers library and test: Associative containers retaining insertion order for traversals.
inspector-wrecker library, program and test: Create benchmarks from the HAR files
instapaper-sender program: Basic HTTP gateway to save articles to Instapaper
io-streams-http library: http-client for io-streams
ip library, tests and benchmark: Library for IP and MAC addresses
ipfs-api library: Auto-generated IPFS HTTP API
iptadmin program: web-interface for iptables
isohunt library: Bindings to the isoHunt torrent search API
ivy-web library: A lightweight web framework
javascript-extras library and program: Extra javascript functions when using GHCJS
jcdecaux-vls library: JCDecaux self-service bicycles API client
jespresso library, program and test: Extract all JavaScript from an HTML page and consolidate it in one script.
jmacro-rpc library: JSON-RPC clients and servers using JMacro, ...
jmacro-rpc-happstack library: Happstack backend for jmacro-rpc
jmacro-rpc-snap library: Snap backend for jmacro-rpc
jml-web-service library and test: Common utilities for running a web service
jmonkey library and test: Jmonkey is very restricted but handy EDSL for JavaScript.
jobs-ui library: A library for creating a jobs management website running custom jobs.
join-api library: Bindings for Join push notifications
jonathanscard library: An implementation of the Jonathan's Card API.
jsaddle library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-clib library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-dom library: DOM library that uses jsaddle to support both GHCJS and GHC
jsaddle-hello program: JSaddle Hello World, an example package
jsaddle-warp library and test: Interface for JavaScript that works with GHCJS and GHC
jsaddle-webkit2gtk library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-webkitgtk library: Interface for JavaScript that works with GHCJS and GHC
jsaddle-wkwebview library: Interface for JavaScript that works with GHCJS and GHC
jsc library and test: High level interface for webkit-javascriptcore
json library: Support for serialising Haskell to and from JSON
json-feed library and test: JSON Feed
json2yaml program: Utility to convert a file from JSON to YAML format. (deprecated)
json5hs library: Serialising to and from JSON5
jsonextfilter program: Filter select values in JSON objects to unix programs
jsonpath library and test: Library to parse and execute JSONPath
jsons-to-schema library, program and test: JSON to JSON Schema
juandelacosa program: Manage users in MariaDB >= 10.1.1
junit-xml library and test: Producing JUnit-style XML test reports.
jwt library and tests: JSON Web Token (JWT) decoding and encoding
kansas-comet library: A JavaScript push mechanism based on the comet idiom
karps library and tests: Haskell bindings for Spark Dataframes and Datasets
katip-raven library: Katip scribe for raven (https://sentry.io)
katip-syslog library and test: Syslog Katip Scribe
kawaii library and test: Utilities for serving static sites and blogs with Wai/Warp
keenser library, program and test: Initial project template from stack
keera-hails-reactive-htmldom library and tests: Keera Hails Reactive bindings for HTML DOM via GHCJS
Ketchup library: A super small web framework for those who don't like big and fancy codebases
keter library, program and test: Web application deployment manager, focusing on Haskell web frameworks
keycode library: Maps web browser keycodes to their corresponding keyboard keys
kontrakcja-templates library: Utilities for working with many HStringTemplate templates from files.
krapsh library and tests: Haskell bindings for Spark Dataframes and Datasets
kubernetes-client library and tests: Client library for Kubernetes
kubernetes-client-core library and test: Auto-generated kubernetes-client-core API Client
kubernetes-webhook-haskell library: Create Kubernetes Admission Webhooks in Haskell
kurita library, programs and test: Find the alpha emoji
lackey library and test: Generate Ruby clients from Servant APIs.
lambdabot program: Lambdabot is a development tool and advanced IRC bot
lambdabot-core library: Lambdabot core functionality
lambdabot-haskell-plugins library: Lambdabot Haskell plugins
lambdabot-irc-plugins library: IRC plugins for lambdabot.
lambdabot-misc-plugins library: Lambdabot miscellaneous plugins
lambdabot-novelty-plugins library: Novelty plugins for Lambdabot
lambdabot-reference-plugins library: Lambdabot reference plugins.
lambdabot-social-plugins library: Social plugins for Lambdabot
lambdabot-trusted library: Lambdabot trusted code.
lambdabot-utils library: Utility libraries for the advanced IRC bot, Lambdabot
lambdabot-zulip library, program and test: Lambdabot for Zulip Chat
lambdacms-core library and test: LambdaCms 'core' subsite for Yesod apps
lambdacms-media library: LambdaCms "media" extension
lambdaFeed program: RSS 2.0 feed generator
lambdatwit programs: Lambdabot running as a twitter bot. Similar to the @fsibot f# bot.
language-elm library and test: Generate elm code
large-hashable library, test and benchmark: Efficiently hash (large) Haskell values
launchdarkly-server-sdk library and test: Server-side SDK for integrating with LaunchDarkly
ld-intervals library: Data structures for representing arbitrary intervals
leaf program: A simple portfolio generator
leanpub-concepts library: Types for the Leanpub API
leanpub-wreq library: Use the Leanpub API via Wreq
legion-discovery-client library and test: Client library for communicating with legion-discovery.
lens-prelude library: Alternate prelude that exports lens combinators
lens-xml library and test: Lenses for the xml package.
less-arbitrary library and test: Linear time testing with variant of Arbitrary class that always terminates.
libjwt-typed library, test and benchmark: A Haskell implementation of JSON Web Token (JWT)
libravatar library: Use Libravatar, the decentralized avatar delivery service
lightning-haskell library and tests: Haskell client for lightning-viz REST API
lighttpd-conf library: Lighttpd configuration file tools.
lighttpd-conf-qq library: A QuasiQuoter for lighttpd configuration files.
linden library and program: Zen gardening, based on l-systems
line-bot-sdk library, program and test: Haskell SDK for LINE Messaging API
link-relations library: Use web link relation types (RFC 5988) in Haskell
LinkChecker program: Check a bunch of local html files for broken links
lio-simple library and program: LIO support for the Simple web framework
listenbrainz-client library: A client library to the ListenBrainz project
lmdb-high-level library and test: Higher level API for working with LMDB
lmonad-yesod library: LMonad for Yesod integrates LMonad's IFC with Yesod web applications.
logentries library and test: Request logger middleware for Logentries
loli library: A minimum web dev DSL in Haskell
lord library, program and test: A command line interface to online radios.
lti13 library and test: Core functionality for LTI 1.3.
ltiv1p1 library: Partial implementation of a service provider for LTI 1.1.
lucid library, test and benchmarks: Clear to write, read and edit DSL for HTML
lucid-cdn library: Curated list of CDN imports for lucid.
lucid-colonnade library: Helper functions for using lucid with colonnade
lucid-extras library and test: Generate more HTML with Lucid - Bootstrap, Rdash, Vega-Lite, Leaflet JS, Email.
lucienne programs: Server side feed aggregator/reader
luis-client library: An unofficial client for the LUIS NLP service.
Lykah library and program: A static website and blog generator
lz4-frame-conduit library, program and test: Conduit implementing the official LZ4 frame streaming format
mackerel-client library and test: An API client library for Mackerel
magicbane library: A web framework that integrates Servant, RIO, EKG, fast-logger, wai-cli…
mahoro program: ImageBoards to XMPP gate
maid program: A simple static web server
mailchimp library and test: Bindings for the MailChimp API
MailchimpSimple library: Haskell library to interact with Mailchimp JSON API Version 3.0
mailgun library: API binding for Mailgun
mameya library, program and test: Static Website Generator in Haskell
mangopay library, program and test: Bindings to the MangoPay API
mangrove library and tests: A parser for web documents according to the HTML5 specification.
mapquest-api library: Bindings to the MapQuest API
marihana library, program and test: Minimal tool to make your blog in Haskell
markdown library and test: Convert Markdown to HTML, with XSS protection
markdown-kate library and test: Convert Markdown to HTML, with XSS protection
markup library: Abstraction for HTML-embedded content
masakazu-bot program: @minamiyama1994_bot on haskell
mathblog programs: A program for creating and managing a static weblog with LaTeX math and diagrams
mathgenealogy program: Discover your (academic) ancestors!
mattermost-api library, programs and test: Client API for Mattermost chat system
mcaeson library, program and test: An Aeson parsing toolkit
mediawiki library and programs: Interfacing with the MediaWiki API
medium-sdk-haskell library: Haskell SDK for communicating with the Medium API
mellon-web library, programs and tests: A REST web service for Mellon controllers
menshen library and test: Data Validation
metadata library: metadata library for semantic web
metro-socket library: Socket transport for metro
metro-transport-crypto library and test: Crypto transport for metro
metro-transport-tls library: TLS transport for metro
metro-transport-websockets library: Websockets transport for metro
metro-transport-xor library: XOR transport for metro
MFlow library: stateful, RESTful web framework
microaeson library and test: A tiny JSON library with light dependency footprint
microformats2-parser library, program and test: A Microformats 2 parser.
microformats2-types library: Microformats 2 types (with Aeson instances)
micrologger library and test: A super simple logging module.
mighttpd2 library, programs and test: High performance web server on WAI/warp
miku library: A minimum web dev DSL
mime-mail-ses library, program and test: Send mime-mail messages via Amazon SES
mime-types library: Basic mime-type handling types and functions
mirror-tweet program: Tweet mirror
miso library and programs: A tasty Haskell front-end framework
miso-action-logger library: Miso state transition logger
miso-examples programs: A tasty Haskell front-end framework
miso-from-html program: Convert HTML to miso View syntax
Mobile-Legends-Hack-Cheats library and tests: spam
moe library: html with style
mohws library and programs: Modular Haskell Web Server
mollie-api-haskell library and test: Mollie API client for Haskell http://www.mollie.com
monad-http library: A class of monads which can do http requests
monad-metrics library and test: A convenient wrapper around EKG metrics
monad-metrics-extensible library and test: An extensible and type-safe wrapper around EKG metrics
mondo library and test: Haskell bindings for the Mondo API
mongrel2-handler library: Mongrel2 Handler Library
monoid-owns library: a practical monoid implementation
monzo library and test: Haskell bindings for the Monzo API
moonshine library: A web service framework for Haskell, similar in purpose to dropwizard.
morpheus-graphql library and test: Morpheus GraphQL
morpheus-graphql-app library and test: Morpheus GraphQL Core
morpheus-graphql-cli program and test: Morpheus GraphQL CLI
morpheus-graphql-client library and test: Morpheus GraphQL Client
morpheus-graphql-core library and test: Morpheus GraphQL Core
morpheus-graphql-subscriptions library and test: Morpheus GraphQL Subscriptions
mosquitto-hs library: Mosquitto client library bindings
moss library: Haskell client for Moss
muon program: Static blog generator
murmur library, program and test: Simple CUI Twitter Client.
musicw library: Sound synthesis library, to be used with GHCJS and Web Audio API
my-package-testing library and tests: spam
my-test-docs library and tests: spam
myanimelist-export library and program: Export from MyAnimeList
mysnapsession library: Sessions and continuations for Snap web apps
mysnapsession-example programs: Example projects using mysnapsession
mywatch program: Web application to view and kill MySQL queries
n2o library and test: Abstract Protocol Loop
n2o-nitro library: Nitro Elements, Events and Actions
n2o-protocols library: N2O Protocols Starter Pack
n2o-web library: N2O adapter for WebSockets
nagios-config library and program: EDSL to specify Nagios configuration files.
named-formlet library: A simple formlet library with named formlets.
nationstates library: NationStates API client
nemesis-titan library: ...
neptune-backend library, program and test: Neptune Client
nero library and tests: Lens-based HTTP toolkit
nero-wai library: WAI adapter for Nero server applications
nero-warp library: Run Nero server applications with Warp
nested-routes library and test: Declarative, compositional Wai responses
netease-fm library and program: NetEase Cloud Music FM client in Haskell.
network-pgi library: Library for writing PGI applications
network-wai-router library: A routing library for wai
neuron library, program and test: Future-proof system for plain-text notes.
newsletter library and program: A basic newsletter implimentation, using various backends.
next-ref library and test: A concurrency primitive for a slow consumer.
nice-html library and benchmarks: A fast and nice HTML templating library with distinct compilation/rendering phases.
nikepub program: Command line utility publishes Nike+ runs on blogs and Twitter
nixpkgs-update program and test: Tool for semi-automatic updating of nixpkgs repository
noli library: A static site generator
notmuch-web library, program and test: A web interface to the notmuch email indexer
now-haskell library, program and test: Zeit Now haskell-side integration and introspection tools.
nri-env-parser library: Read environment variables as settings to build 12-factor apps.
nri-observability library and test: Report log spans collected by nri-prelude.
nri-prelude library and test: A Prelude inspired by the Elm programming language
nullpipe library and test: Initial project template from stack
oasis-xrd library and tests: Extensible Resource Descriptor
oauth10a library and test: Fully Automatic Luxury OAuth 1.0a headers
oauthenticated library and test: Simple OAuth for http-client
ocaml-export library and test: Convert Haskell types in OCaml types
odd-jobs library, programs and test: A full-featured PostgreSQL-backed job queue (with an admin UI)
ogmarkup library, test and benchmark: A lightweight markup language for story writers
ohloh-hs library, program and test: Interface to the Ohloh API
oidc-client library, program and test: OpenID Connect 1.0 library for RP
olwrapper library and program: An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay
om-elm library: Haskell utilities for building embedded Elm programs.
om-http-logging library: om-http-logging
on-a-horse library: "Haskell on a Horse" - A combinatorial web framework
one-liner-instances library: Generics-based implementations for common typeclasses
open-browser library and program: Open a web browser from Haskell.
openai-hs library and test: Unofficial OpenAI client
openai-servant library: Unofficial OpenAI servant types
openapi-petstore library and test: Auto-generated openapi-petstore API Client
openapi3 library, program and tests: OpenAPI 3.0 data model
opendatatable library: A library for working with Open Data Tables
opentok library and test: An OpenTok SDK for Haskell
openweathermap library and program: Access data at OpenWeatherMap
operational-extra library: Interpretation functions and simple instruction sets for operational
opml library: Representing and handling OPML subscription information.
orc library and program: Orchestration-style co-ordination EDSL
orchid library: Haskell Wiki Library
orchid-demo program: Haskell Wiki Demo
org-mode-lucid library: Lucid integration for org-mode.
ory-hydra-client library and test: Auto-generated ory-hydra API Client
ory-kratos library and test: API bindings for Ory Kratos
package-description-remote library and test: Fetches a 'GenericPackageDescription' from Hackage
paddle library: API to the Paddle payment processor
pagarme library and program: Pagarme API wrapper
pagure-hook-receiver library: Receive hooks from pagure and do things with them
panda library: A simple static blog engine
pansite library, program and tests: Pansite: a simple web site management tool
paranoia library, program and test: http proxy server
partial-uri library: Datatype for passing around unresolved URIs.
pasta library and test: PostgreSQL Abstract Syntax Tree Assember
pastis library: Interface to the past.is URL shortening service
path-extra library and test: URLs without host information
path-pieces library and test: Components of paths.
patronscraper program: A webpage scraper for Patreon which dumps a list of patrons to a text file.
paypal-adaptive-hoops library, program and tests: Client for a limited part of PayPal's Adaptive Payments API
pb-next library, program and test: Utility CLI for working with protobuf files
pcre-heavy library and test: A regexp (regex) library on top of pcre-light you can actually use.
pdf-slave library and program: Tool to generate PDF from haskintex templates and YAML input
pdf-slave-server library and program: Web service for pdf-slave tool
pdf-slave-template library: Template format definition for pdf-slave tool
pencil library and tests: Static site generator
periodic library, program and test: A reliable at-least-once periodic job scheduler backed by redis.
periodic-client library: Periodic task system haskell client.
periodic-client-exe programs: Periodic task system haskell client executables
periodic-common library: Periodic task system common.
periodic-server library and program: Periodic task system haskell server
persistent-typed-db library and test: Type safe access to multiple database schemata.
persona library: Persona (BrowserID) library
persona-idp program: Persona (BrowserID) Identity Provider
pg-recorder library, program and test: Initial project template from stack
pg-transact library and test: A postgresql-simple transaction monad
Phsu program: Personal Happstack Server Utils
pi-calculus program: Applied pi-calculus interpreter
piki program: Yet another text-to-html converter
pipes-http library: HTTP client with pipes interface
pipes-wai library: A port of wai-conduit for the pipes ecosystem
pipes-websockets library and program: WebSockets in the Pipes framework.
pivotal-tracker library, program and test: A library and a CLI tool for accessing Pivotal Tracker API
pixela library and test: Pixela client.
pixiv library and test: Pixiv API binding based on servant-client
plaid library, program and test: Plaid.com api integration library
plat library: Simple templating library
plocketed program: plot data from stdin through socketed
plzwrk library and test: A front-end framework
pocket library: Bindings for the Pocket API
poke library, program and test: Discord verification bot
polydata-core library: Core data definitions for the "polydata" package
polysemy-webserver library and test: Start web servers from within a Polysemy effect stack
pomohoro library, program and test: Initial project template from stack
porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
postgres-websockets library, program and test: Middleware to map LISTEN/NOTIFY messages to Websockets
postgresql-connector library: Initial project postgresql-connector from stack
postgresql-named library and test: Generic deserialization of PostgreSQL rows based on column names
postgresql-simple-queue library and test: A PostgreSQL backed queue
postgrest-ws library, program and test: PostgREST extension to map LISTEN/NOTIFY messages to Websockets
powerqueue library and test: A flexible job queue with exchangeable backends
powerqueue-distributed library and test: A distributed worker backend for powerqueu
powerqueue-levelmem library, test and benchmark: A high performance in memory and LevelDB backend for powerqueue
powerqueue-sqs library: A Amazon SQS backend for powerqueue
praglude library: A pragmatic Prelude
press library: Text template library targeted at the web / HTML generation
prettyprinter-lucid library: A prettyprinter backend for lucid
prim-array library: Primitive byte array with type variable
prim-ref library: Primitive byte array with type variable
primula-board program: ImageBoard on Happstack and HSP
primula-bot program: Jabber-bot for primula-board ImageBoard
pringletons library: Classes and data structures complementing the singletons library
prometheus library: Prometheus Haskell Client
prometheus-wai-middleware library and program: Instrument a wai application with various metrics
proto-lens-jsonpb library: JSON protobuf encoding for proto-lens
proton-haskell library and test: Simple XML templating library
prove-everywhere-server program: The server for ProveEverywhere
psql-helpers library: A small collection of helper functions to generate postgresql queries
pubsub library and programs: A library for Google/SixApart pubsub hub interaction
punycode library and test: Encode unicode strings to ascii forms according to RFC 3492
purescheme-wai-routing-core library, program and test: Simple Routing functions for Wai Applications
purescript-bridge library and test: Generate PureScript data types from Haskell data types
purescript-iso library and test: Isomorphic trivial data type definitions over JSON
pursuit-client library and program: A cli client for pursuit
pushbullet-types library: Datatypes used by the Pushbullet APIs
pusher-haskell library and test: A Pusher.com client written in Haskell
pushover library and test: A Haskell Pushover API library
quack library: Convenience parser combinators for URI query strings
quandl-api library: Quandl.com API library
quantification library: Rage against the quantification
querystring-pickle library and test: Picklers for de/serialising Generic data types to and from query strings
quickbooks library and test: QuickBooks API binding.
Quickson library: Quick JSON extractions with Aeson
quickson library: Quick JSON extractions with Aeson
quickwebapp library: A quick webapp generator for any file processing tool
radixtree library, test and benchmarks
rails-session library and test: Decrypt Ruby on Rails sessions in Haskell
rakuten library and test: The Rakuten API in Haskell
rallod library: '$' in reverse.
raml library: RESTful API Modeling Language (RAML) library for Haskell
rascal library, program and test: A command-line client for Reddit
ratelimiter library and test: In-memory rate limiter
raven-haskell-scotty library: Sentry http interface for Scotty web server.
rdioh library and programs: A Haskell wrapper for Rdio's API.
react-flux library and programs: A binding to React based on the Flux application architecture for GHCJS
react-flux-servant library: Allow react-flux stores to send requests to a servant server
react-haskell library: Haskell React bindings
react-tutorial-haskell-server program: react-tutorial web server
readcsv library: Lightweight CSV parser/emitter based on ReadP
real-day-end library and test: Tiny library to calculate date considering when your day realy ends
reason-export library and test: Generate Reason types from Haskell
redHandlers library: Monadic HTTP request handlers combinators to build a standalone web apps.
Redmine library and test: Library to access Redmine's REST services
reflex-backend-wai library and program: Reflex interface to `wai`
reflex-dom library and programs: Functional Reactive Web Apps with Reflex
reflex-dom-colonnade library: Use colonnade with reflex-dom
reflex-dom-core library and tests: Functional Reactive Web Apps with Reflex
reflex-dom-fragment-shader-canvas library and program: A reflex-dom widget to draw on a canvas with a fragment shader program
reflex-dom-helpers library and test: Html tag helpers for reflex-dom
reflex-dom-retractable library: Routing and retractable back button for reflex-dom
reflex-dom-svg library: Reflex functions for SVG elements.
reflex-external-ref library: External reference with reactivity support
reflex-jsx library: Use jsx-like syntax in Reflex
reflex-localize library: Localization library for reflex
reflex-localize-dom library and program: Helper widgets for reflex-localize
reflex-monad-auth library and program: Utilities to split reflex app to authorized and not authorized contexts
reform library: reform is a type-safe HTML form generation and validation library
reform-blaze library: Add support for using blaze-html with Reform
reform-hamlet library: Add support for using Hamlet with Reform
reform-happstack library: Happstack support for reform.
reform-hsp library: Add support for using HSP with Reform
reform-lucid library: Add support for using lucid with Reform
refresht library and program: Environment Monad with automatic resource refreshment
refty library and test: Formatted JSON generator for API server inspired by normalizr.
regular-web library: Generic programming for the web
reload library, program and test: A web based Haskell IDE
remark library, program and test: A DSL for marking student work
remarks library, program and test: A DSL for marking student work
replicant library, program and test: Initial project template from stack
repo-based-blog library, program and test: Blogging module using blaze html for markup
reproject library and test: Define and combine "materialized" projections
req library and tests: Easy-to-use, type-safe, expandable, high-level HTTP client library
req-conduit library, test and benchmark: Conduit helpers for the req HTTP client library
req-url-extra library, program and test: Provides URI/URL helper functions for use with Req
reqcatcher library and test: A local http server to catch the HTTP redirect
request library
reroute library, test and benchmark: abstract implementation of typed and untyped web routing
reserve program and test: Reserve reloads web applications
respond library and program: process and route HTTP requests and generate responses on top of WAI
rest-client library: Utility library for use in generated API client libraries.
rest-core library and test: Rest API library.
rest-example library and programs: Example project for rest
rest-gen library and test: Documentation and client generation from rest definition.
rest-happstack library: Rest driver for Happstack.
rest-snap library: Rest driver for Snap.
rest-types library: Silk Rest Framework Types
rest-wai library: Rest driver for WAI applications.
restful-snap library
RESTng library: A framework for writing RESTful applications.
rfc-http-client library: The HTTP client extensions from the Robert Fischer Commons.
rfc1413-server library: rfc1413 server
rfc1413-types library: An rfc1413 parser and response renderer
rfc3339 library: Parse and display time according to RFC3339 (deprecated)
rib library and test: Static site generator based on Shake
rib-core library: Static site generator based on Shake
ridley library and test: Quick metrics to grow your app strong.
ridley-extras library and test: Handy metrics that don't belong to ridley.
riscv-isa library and test: Haskell representation of the RISC-V instruction set architecture
rison library and test: Parses and renders RISON strings.
rivet-adaptor-postgresql library: Rivet migration library postgresql backend
roboservant library and test: Automatic session-aware servant testing
robots-txt library and test: Parser for robots.txt
roc-cluster-demo program: Gloss interactive demo for roc-cluster package
rollbar-hs library and test: Core Rollbar data types and APIs.
rowdy library and test: An EDSL for web application routes.
rowdy-yesod library and test: An EDSL for web application routes.
rpc-framework library and program: a remote procedure call framework
saferoute library: A simple type-safe routing library.
sajson library, program and test: Fast JSON parsing powered by Chad Austin's sajson library
salvia library: Modular web application framework.
salvia-demo library and programs: Demo Salvia servers.
salvia-extras library: Collection of non-fundamental handlers for the Salvia web server.
salvia-protocol library: Salvia webserver protocol suite supporting URI, HTTP, Cookie and MIME.
salvia-sessions library: Session support for the Salvia webserver.
salvia-websocket library: Websocket implementation for the Salvia Webserver.
scalp-webhooks library, program and test: Test webhooks locally
scalpel library: A high level web scraping library for Haskell.
scalpel-core library, test and benchmark: A high level web scraping library for Haskell.
scalpel-search library and test: scalpel scrapers for search engines
scottish library: scotty with batteries included
scotty library, test and benchmark: Haskell web framework inspired by Ruby's Sinatra, using WAI and Warp
scotty-binding-play library and test: The Play Framework style data binding in Scotty.
scotty-blaze library: blaze-html integration for Scotty
scotty-cookie library: Cookie management helper functions for Scotty framework
scotty-fay library and test: Fay integration for Scotty.
scotty-form library: Html form validation using `ditto`
scotty-format library, program and test: Response format helper for the Scotty web framework.
scotty-hastache library: Easy Mustache templating support for Scotty
scotty-haxl library: Combine scotty and haxl
scotty-params-parser library: HTTP-request's query parameters parser abstraction for "scotty"
scotty-path-normalizer library and test: Redirect to a normalized path
scotty-resource library: A Better way of modeling web resources.
scotty-rest library, programs and test: Webmachine-style REST library for scotty
scotty-session library: Adding session functionality to scotty
scotty-tls library: TLS for Scotty
scotty-utils library: Scotty utils library
scotty-view library and program
scrapbook library, program and test: collect posts of site that is wrote in config yaml using feed or scraping
scrapbook-core library and test: Core Package for scrapbook
sdl2-sprite library and program: Sprite previewer/animator
seacat library: Small web framework using Warp and WAI
selenium library: Test web applications through a browser.
sendgrid-haskell library: Sengrid API
serpentine library and program: Simple project template from stack
serv library: Dependently typed API framework
serv-wai library and test: Dependently typed API servers with Serv
servant library and test: A family of combinators for defining webservices APIs
servant-aeson-specs library and test: generic tests for aeson serialization in servant
servant-auth library: Authentication combinators for servant
servant-auth-client library and test: servant-client/servant-auth compatibility
servant-auth-cookie library, program, tests and benchmark: Authentication via encrypted cookies
servant-auth-docs library and tests: servant-docs/servant-auth compatibility
servant-auth-hmac library, program and test: Authentication via HMAC
servant-auth-server library and tests: servant-server/servant-auth compatibility
servant-auth-swagger library and test: servant-swagger/servant-auth compatibility
servant-auth-token library: Servant based API and server for token based authorisation
servant-auth-token-acid library: Acid-state backend for servant-auth-token server
servant-auth-token-api library: Servant based API for token based authorisation
servant-auth-token-leveldb library: Leveldb backend for servant-auth-token server
servant-auth-token-persistent library: Persistent backend for servant-auth-token server
servant-auth-token-rocksdb library: RocksDB backend for servant-auth-token server
servant-auth-wordpress library: Authenticate Routes Using Wordpress Cookies
servant-avro library and test: Avro content type for Servant
servant-benchmark library and test: Generate benchmark files from a Servant API
servant-blaze library and test: Blaze-html support for servant
servant-cassava library and test: Servant CSV content-type for cassava
servant-checked-exceptions library, programs and test: Checked exceptions for Servant APIs.
servant-checked-exceptions-core library, program and test: Checked exceptions for Servant APIs.
servant-cli library and program: Command line interface for Servant API clients
servant-client library and tests: Automatic derivation of querying functions for servant
servant-client-core library and test: Core functionality and class for client function generation for servant APIs
servant-client-js library: A servant client for frontend JavaScript
servant-client-namedargs library and test: Automatically derive API client functions with named and optional parameters
servant-conduit library and test: Servant Stream support for conduit.
servant-csharp library: Generate servant client library for C#
servant-dhall library and test: Servant Dhall content-type
servant-docs library, program and test: generate API docs for your servant webservice
servant-ede library and program: Combinators for rendering EDE templates in servant web applications
servant-ekg library, test and benchmark: Helpers for using ekg with servant
servant-elm library, programs and tests: Automatically derive Elm functions to query servant webservices.
servant-event-stream library and test: Servant support for Server-Sent events
servant-examples programs: Example programs for servant
servant-exceptions library: Extensible exceptions for servant APIs
servant-exceptions-server library: Extensible exceptions for servant API servers
servant-fiat-content library: Fiat content types
servant-flatten library: Utilities for flattening servant API types
servant-foreign library and test: Helpers for generating clients for servant APIs in any programming language
servant-generate library: Utilities for generating mock server implementations
servant-generic library and test: Specify Servant APIs with records.
servant-github library, program and test: Bindings to GitHub API using servant.
servant-github-webhook library and tests: Servant combinators to facilitate writing GitHub webhooks.
servant-haxl-client library and test: automatical derivation of querying functions for servant webservices
servant-hmac-auth library, program and test: Servant authentication with HMAC
servant-http-streams library and tests: Automatic derivation of querying functions for servant
servant-http2-client library and test: Generate HTTP2 clients from Servant API descriptions.
servant-iCalendar library: Servant support for iCalendar
servant-jquery library, program and test: Automatically derive (jquery) javascript functions to query servant webservices
servant-js library, program and test: Automatically derive javascript functions to query servant webservices.
servant-jsonrpc library: JSON-RPC messages and endpoints
servant-jsonrpc-client library: Generate JSON-RPC servant clients
servant-jsonrpc-server library: JSON-RPC servant servers
servant-kotlin library, test and benchmark: Automatically derive Kotlin class to query servant webservices
servant-lucid library and test: Servant support for lucid
servant-machines library and test: Servant Stream support for machines
servant-match library and test: Standalone implementation of servant’s dispatching mechanism
servant-matrix-param library and tests: Matrix parameter combinator for servant
servant-mock library, program and test: Derive a mock server for free from your servant API types
servant-multipart library, program and test: multipart/form-data (e.g file upload) support for servant
servant-named library and test: Add named endpoints to servant
servant-namedargs library and test: Combinators for servant providing named parameters
servant-nix library and test: Servant Nix content-type
servant-openapi3 library and tests: Generate a Swagger/OpenAPI/OAS 3.0 specification for your servant API.
servant-options library: Provide responses to OPTIONS requests for Servant applications.
servant-pagination library, programs and test: Type-safe pagination for Servant APIs
servant-pandoc library: Use Pandoc to render servant API documentation
servant-pipes library and test: Servant Stream support for pipes
servant-polysemy library and programs: Utilities for using servant in a polysemy stack
servant-pool library: ...
servant-postgresql library: Useful functions and instances for using servant with a PostgreSQL context
servant-proto-lens library and test: Servant Content-Type for proto-lens protobuf modules.
servant-purescript library and test: Generate PureScript accessor functions for you servant API
servant-pushbullet-client library: Bindings to the Pushbullet API using servant-client
servant-py library, program and test: Automatically derive python functions to query servant webservices.
servant-quickcheck library and tests: QuickCheck entire APIs
servant-rawm library: Embed a raw 'Application' in a Servant API
servant-rawm-client library: The client implementation of servant-rawm.
servant-rawm-docs library: Documentation generator for 'RawM' endpoints.
servant-rawm-server library: The server implementation of servant-rawm.
servant-reason library and tests: Derive Reason types to interact with a Haskell backend
servant-reflex library and program: servant API generator for reflex apps
servant-response library: ...
servant-router library and tests: Servant router for non-server applications.
servant-ruby library and test: Generate a Ruby client from a Servant API with Net::HTTP.
servant-scotty library: Generate a web service for servant 'Resource's using scotty and JSON
servant-seo library and test: Generate Robots.txt and Sitemap.xml specification for your servant API.
servant-server library, program and test: A family of combinators for defining webservices APIs and serving them
servant-server-namedargs library: Automatically derive API server functions with named and optional parameters
servant-smsc-ru library and test: Servant client for smsc.ru service for sending SMS to cell phones
servant-snap library, program and test: A family of combinators for defining webservices APIs and serving them
servant-stache library and program: Content-Types for rendering Mustache in servant
servant-subscriber library and program: When REST is not enough ...
servant-swagger library and tests: Generate a Swagger/OpenAPI/OAS 2.0 specification for your servant API.
servant-swagger-tags library: Swagger Tags for Servant
servant-swagger-ui library: Servant swagger ui
servant-swagger-ui-core library: Servant swagger ui core components
servant-swagger-ui-jensoleg library: Servant swagger ui: Jens-Ole Graulund theme
servant-swagger-ui-redoc library: Servant swagger ui: ReDoc theme
servant-validate library and test: Chekc static properties of servant APIs
servant-waargonaut library and test: Servant Integration for Waargonaut JSON Package
servant-wasm library and program: Servant support for delivering WebAssembly
servant-websockets library and programs: Small library providing WebSocket endpoints for servant.
servant-xml library: Servant support for the XML Content-Type
servant-yaml library and test: Servant support for yaml
servant-zeppelin library: Types and definitions of servant-zeppelin combinators.
servant-zeppelin-client library and test: Client library for servant-zeppelin combinators.
servant-zeppelin-server library and test: Server library for servant-zeppelin combinators.
servant-zeppelin-swagger library and test: Swagger instances for servant-zeppelin combinators.
server-generic library: Auto-generate a server for your datatype
serversession library and test: Secure, modular server-side sessions.
serversession-backend-acid-state library and test: Storage backend for serversession using acid-state.
serversession-backend-persistent library and test: Storage backend for serversession using persistent and an RDBMS.
serversession-backend-redis library and test: Storage backend for serversession using Redis.
serversession-frontend-snap library: Snap bindings for serversession.
serversession-frontend-wai library: wai-session bindings for serversession.
serversession-frontend-yesod library: Yesod bindings for serversession.
services library and test: Tools for building services
serviette library: JSON to Sql
servius program: Warp web server with template rendering
ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
ses-html-snaplet library: Snaplet for the ses-html package
shadowsocks library, programs and test: A fast SOCKS5 proxy that help you get through firewalls
shake-minify library: Shake Minify Rules
shakebook library and test: Shake-based technical documentation generator; HTML & PDF
shakespeare library and test: A toolkit for making compile-time interpolated templates
shakespeare-css library: Stick your haskell variables into css at compile time. (deprecated)
shakespeare-i18n library: A type-based approach to internationalization. (deprecated)
shakespeare-js library: Stick your haskell variables into javascript/coffeescript at compile time. (deprecated)
shakespeare-sass library: SASS support for Shakespeare and Yesod
shakespeare-text library: Interpolation with quasi-quotation: put variables strings (deprecated)
shelduck library, program and test: Test webhooks locally
shine library: Declarative graphics for the browser using GHCJS
shine-examples programs: Examples for the shine package
shine-varying library and tests: FRP interface for shine using the varying package
shortcut-links library and test: Link shortcuts for use in text markup
shorten-strings library: Shorten a variety of string-like types adding ellipsis
Shpadoinkle library: A programming model for declarative, high performance user interface.
Shpadoinkle-backend-pardiff library: A Virtual Dom in pure Haskell, based on Html as an Alignable Functor.
Shpadoinkle-backend-snabbdom library: Use the high-performance Snabbdom virtual dom library written in JavaScript.
Shpadoinkle-backend-static library: A backend for rendering Shpadoinkle as Text.
Shpadoinkle-console library: Support for the native browser console
Shpadoinkle-debug library: Debugging tools for Shpadoinkle applications.
Shpadoinkle-developer-tools library and program: Chrome extension to aide in development
Shpadoinkle-disembodied library: Shpadoinkle as a static site.
Shpadoinkle-examples programs: Example usages of Shpadoinkle
Shpadoinkle-html library: A typed, template generated Html DSL, and helpers.
Shpadoinkle-lens library: Lens combinators for Shpadoinkle applications.
Shpadoinkle-router library: A single page application rounter for Shpadoinkle based on Servant.
Shpadoinkle-streaming library: Integration of the streaming library with Shpadoinkle continuations.
Shpadoinkle-template library and test: Read standard file formats into Shpadoinkle with Template Haskell
Shpadoinkle-widgets library and test: A collection of common reusable types and components.
shpider library: Web automation library in Haskell.
shunya-library library: Initial project template from stack
shunyalib library: Initial project template from stack
sibe library and programs: Machine Learning algorithms
simple library, program and test: A minimalist web framework for the WAI server interface
simple-css library: simple binding of css and html
simple-download library: A simple wrapper of http-conduit for file download.
simple-form library: Forms that configure themselves based on type
simple-postgresql-orm library: Connector package for integrating postgresql-orm with the Simple web framework
simple-session library: Cookie-based session management for the Simple web framework
simple-templates library and test: A basic template language for the Simple web framework
simpleconfig library and test: Short description of your package
simplemesh library: Generators for primitive meshes
SimpleServer library and program: A simple static file server, for when apache is overkill
since library: Get the number of seconds since the last invocation
singleton-bool library: Type level booleans
siphon library and tests: Encode and decode CSV files
sitemap library: Sitemap parser
sitemap-gen library and test: Generate XML Sitemaps & Sitemap Indexes
sitepipe library: A simple to understand static site generator
SJW library, program, test and benchmark: The Simple Javascript Wrench
skell library: An overly complex Haskell web framework.
skemmtun program: A MyAnimeList.net client.
skews library and test: A very quick-and-dirty WebSocket server.
skylighting-lucid library: Lucid support for Skylighting
slack-api library, programs and test: Bindings to the Slack RTM API.
slack-notify-haskell library and program: Slack notifier for Haskell project.
slack-verify library and test: Slack API Request Verification HMAC
slack-web library, program and test: Bindings for the Slack web API
slick library: A quick & easy static site builder built with shake and pandoc.
slidemews program: ws convert markdown to reveal-js
slope-field library and program: Visualize mathematical function's slope fields
slug library and test: Type-safe slugs for Yesod ecosystem
smartword programs: Web based flash card for Word Smart I and II vocabularies
smsaero library: SMSAero API and HTTP client based on servant library.
snap library and test: Top-level package for the Snap Web Framework
snap-accept library: Accept header branching for the Snap web framework
snap-auth-cli program: Command-line tool to manage Snap AuthManager database
snap-configuration-utilities library: Methods to manipulate Configurator objects for Snap & Snaplets
snap-core library and test: Snap: A Haskell Web Framework (core interfaces and types)
snap-cors library: Add CORS headers to Snap applications
snap-elm library: Serve Elm files through the Snap web framework.
snap-error-collector library: Collect errors in batches and dispatch them
snap-extras library, program and test: A collection of useful helpers and utilities for Snap web applications.
snap-language library: Language handling for Snap
snap-loader-dynamic library: Snap dynamic loader
snap-loader-static library: Snap static loader
snap-server library, programs, test and benchmark: A web server for the Snap Framework
snap-stream library: Streaming Snap handlers
snap-templates program: Scaffolding CLI for the Snap Framework
snap-testing library and test: A library for BDD-style testing with the Snap Web Framework
snap-utils library: Snap Framework utilities.
snap-web-routes library: Type safe URLs for Snap
snaplet-acid-state library: acid-state snaplet for Snap Framework
snaplet-actionlog library: Generic action log snaplet for the Snap Framework
snaplet-amqp library: Snap framework snaplet for the AMQP library
snaplet-auth-acid library: Provides an Acid-State backend for the Auth Snaplet
snaplet-coffee library: CoffeeScript for Snap, auto-compilation and pre-compilation.
snaplet-css-min library: A Snaplet for CSS minification
snaplet-customauth library: Alternate authentication snaplet
snaplet-environments library: ...
snaplet-fay library: Fay integration for Snap with request- and pre-compilation.
snaplet-ghcjs library: Serve javascript files compiled with GHCJS
snaplet-hasql library: A Hasql snaplet
snaplet-haxl library: Snaplet for Facebook's Haxl
snaplet-hdbc library: HDBC snaplet for Snap Framework
snaplet-hslogger library: Snap framework snaplet for the Logger API library.
snaplet-i18n library and program: snaplet-i18n
snaplet-influxdb library: Snap framework snaplet for the InfluxDB library
snaplet-mandrill library: Snap framework snaplet for the Mandrill API library.
snaplet-mongoDB library: Snap Framework MongoDB support as Snaplet
snaplet-mongodb-minimalistic library: Minimalistic MongoDB Snaplet.
snaplet-mysql-simple library: mysql-simple snaplet for the Snap Framework
snaplet-oauth library and test: snaplet-oauth
snaplet-persistent library: persistent snaplet for the Snap Framework
snaplet-postgresql-simple library and program: postgresql-simple snaplet for the Snap Framework
snaplet-postmark library: Postmark snaplet for the Snap Framework
snaplet-purescript library: Automatic (re)compilation of purescript projects
snaplet-recaptcha library: A ReCAPTCHA verification snaplet with Heist integration and connection sharing.
snaplet-redis library and program: Redis support for Snap Framework
snaplet-redson library: CRUD for JSON data with Redis storage
snaplet-rest library: REST resources for the Snap web framework
snaplet-sass library: Sass integration for Snap with request- and pre-compilation.
snaplet-scoped-session library: Modularised session state for Snaplets, in a Snaplet
snaplet-ses-html library: Snaplet for the ses-html package
snaplet-sqlite-simple library and test: sqlite-simple snaplet for the Snap Framework
snaplet-sqlite-simple-jwt-auth library: Snaplet for JWT authentication with snaplet-sqlite-simple
snaplet-stripe library: Stripe snaplet for the Snap Framework
snaplet-tasks library: ...
snaplet-typed-sessions library: Typed session snaplets and continuation-based programming for the Snap web framework
snaplet-wordpress library and test: A snaplet that communicates with wordpress over its api.
soap library and test: SOAP client tools
soap-openssl library: TLS-enabled SOAP transport (using openssl bindings)
soap-tls library: TLS-enabled SOAP transport (using tls package)
socket-icmp library: Definitions for using ICMP with the `socket` library
socketed library and program: simpe tool to serve piped data over http and websocket
socketio library and test: Socket.IO server
solga library and test: Simple typesafe web routing
solga-swagger library: Swagger generation for Solga
sort-by-pinyin library: sort by pinyin
source-code-server program: The server backend for the source code iPhone app
space library and test: Experimental library
sparrow library: Unified streaming data-dependency framework for web apps
spata library: brainless form validation
spike program: Experimental web browser
Spock library and test: Another Haskell web framework for rapid development
Spock-api library: Another Haskell web framework for rapid development
Spock-api-ghcjs library: Another Haskell web framework for rapid development
Spock-api-server library: Another Haskell web framework for rapid development
Spock-auth library: Provides authentification helpers for Spock
Spock-core library and test: Another Haskell web framework for rapid development
Spock-digestive library: Digestive functors support for Spock
Spock-lucid library: Lucid support for Spock
Spock-worker library and test: Background workers for Spock
spoty library: Spotify web API wrapper
sprinkles library, program and test: JSON API to HTML website wrapper
sproxy program: HTTP proxy for authenticating users via OAuth2
sproxy-web program: Web interface to sproxy database
sproxy2 program: Secure HTTP proxy for authenticating users via OAuth2
sqsd-local program and test: Initial project template from stack
ssh-tunnel library: Proxy http-client via ssh tunnel.
SSTG library, program and test: STG Symbolic Execution
stack-network library, program and test: A program for extending Stack to add distributed capabilities
stagen library and program: Static site generator
static-resources library and test: JavaScript and Css files concat for http optimization. Now with LESS support.
stitch library, test and benchmark: lightweight CSS DSL
streaming-pcap library and test: Stream packets via libpcap.
streaming-wai library: Streaming Wai utilities
strelka library: A simple, flexible and composable web-router
strio library, program and test: Initial project template from stack
stripe library: A Haskell implementation of the Stripe API.
stripe-concepts library: Types for the Stripe API
stripe-core library: Stripe API for Haskell - Pure Core
stripe-haskell library: Stripe API for Haskell
stripe-hs library and test: Unofficial Stripe client
stripe-http-client library and test: Stripe API for Haskell - http-client backend
stripe-http-streams library and test: Stripe API for Haskell - http-streams backend
stripe-scotty library: Listen for Stripe webhook events with Scotty
stripe-servant library: Unofficial Stripe servant types
stripe-signature library and test: Verification of Stripe webhook signatures
stripe-tests library: Tests for Stripe API bindings for Haskell
stripe-wreq library: Use the Stripe API via Wreq
suavemente library: An applicative functor that seamlessly talks to HTML inputs.
sunroof-compiler library: Monadic Javascript Compiler
sunroof-examples programs: Tests for Sunroof
sunroof-server library: Monadic Javascript Compiler - Server Utilities
superbuffer library, test and benchmark: Efficiently build a bytestring from smaller chunks
sv library, test and benchmark: Encode and decode separated values (CSV, PSV, ...)
sv-cassava library and test: Integration to use sv with cassava's parser
sv-core library and test: Encode and decode separated values (CSV, PSV, ...)
sv-svfactor library: sv-core + svfactor
svfactor library and test: Syntax-preserving CSV manipulation
swagger-petstore library and test: Auto-generated openapi-petstore API Client
swagger2 library and tests: Swagger 2.0 data model
sws program: A simple web server for serving directories.
symmetric-properties library and test: Monoids for sameness and uniqueness.
systemstats program: An application that regularly logs system stats for later analysis
tablestorage library: Azure Table Storage REST API Wrapper
tag-stream library: streamlined html tag parser
taggy library, program, tests and benchmark: Efficient and simple HTML/XML parsing library
taggy-lens library and tests: Lenses for the taggy html/xml parser
tagstream-conduit library and test: streamlined html tag parser
tapioca library and test: A tasty enhancement to cassava for easy csv exporting
tasty-fail-fast library and test: Adds the ability to fail a tasty test suite on first test failure
tasty-wai library and test: Test 'wai' endpoints via Test.Tasty
tdlib library and test: complete binding to the Telegram Database Library
tdlib-types library and test: Types and Functions generated from tdlib api spec
tdoc library: TDoc is a typed document builder with support for (X)HTML
telegram-api library and test: Telegram Bot API bindings
telegram-bot library, program and test: Telegram Bot microframework for Haskell
telegram-bot-simple library and programs: Easy to use library for building Telegram bots.
telegram-raw-api library and test: Servant bindings to the Telegram bot API
telegram-types library and test: Types used in Telegram bot API
telegraph library and test: Binding to the telegraph API
template-hsml library and test: Haskell's Simple Markup Language
templateify program: Make template from website
termcolor library and program: Composable terminal colors
tesla library and test: Tesla API client.
text-utils library and test: Various text utilities
textlocal library: Haskell wrapper for textlocal SMS gateway
thentos-cookie-session library and test: All-in-one session handling for servant-based frontends
threads-extras library and test: Extends the threads package with a bounded thread group
threepenny-editors library and programs: Composable algebraic editors
threepenny-gui library and programs: GUI framework that uses the web browser as a display.
threepenny-gui-contextmenu library and program: Write simple nested context menus for threepenny-gui.
threepenny-gui-flexbox library and program: Flexbox layouts for Threepenny-gui.
tibetan-utils library and test: Parse and display tibetan numerals
tightrope library: Nice API for a Slackbot
time-http library and test: Parse and format HTTP/1.1 Date and Time strings
time-w3c library and program: Parse, format and convert W3C Date and Time
timeless-tutorials library and program: Initial project template from stack
timerep library and test: Parse and display time according to some RFCs (RFC3339, RFC2822, RFC822)
timespan library: Useful timespan datatype and functions
tiny-scheduler library: tiny no-brainer job scheduler
TinyURL library: Use TinyURL to compress URLs
tldr library, program and test: Haskell tldr client
tls-session-manager library: In-memory TLS session manager
tmapchan library: An insert-ordered multimap (indexed FIFO) which consumes values as you lookup
tmp-postgres library, programs, test and benchmark: Start and stop a temporary postgres
tnet library: Library for encoding/decoding TNET strings for PGI
toboggan library and program: Twitter bot generator
tonatona library and tests: meta application framework
tonatona-google-server-api library and tests: tonatona plugin for google-server-api
tonatona-servant library and tests: tonatona plugin for servant.
torsor library: Torsor Typeclass
toxiproxy-haskell library and test: Client library for Toxiproxy: a TCP failure testing proxy.
tpb programs: Applications for interacting with the Pushbullet API
tracing library and test: Distributed tracing
tracing-control library and test: Distributed tracing
trasa library and test: Type Safe Web Routing
trasa-client library: Type safe http requests
trasa-extra library: Extra functions for trasa
trasa-form library: generate forms using lucid, ditto and trasa
trasa-server library: Type safe web server
trasa-th library and test: Template Haskell to generate trasa routes
travis library: A simple client implementation using Travis CI API.
travis-pogodi library and program: A better travis_wait
trigger library, program and test: ...
tsession library: A Transaction Framework for Web Applications
tsession-happstack library: A Transaction Framework for Happstack
tsetchan library and test: Hides duplicating channels when broadcasting
tsweb library and program: An API binding Web.Spock to Database.Beam
ttn library and test: Things Tracker Network JSON Types
ttn-client library and program: TheThingsNetwork client
tweet-hs library, program and benchmark: Command-line tool for twitter
twhs library, program and test: CLI twitter client.
twilio library and tests: Twilio REST API library for Haskell
twiml library and test: TwiML library for Haskell
twirp library and test: Haskell twirp foundations
twitter-conduit library and tests: Twitter API package with conduit interface and Streaming API support.
twitter-enumerator library: Twitter API package with enumerator interface and Streaming API support.
twitter-feed library and test: Client for fetching Twitter timeline via Oauth
twitter-types library and test: Twitter JSON parser and types
twitter-types-lens library: Twitter JSON types (lens powered)
type-of-html library, tests and benchmarks: High performance type driven html generation.
type-of-html-static library and test: Optimize static parts of type-of-html.
typed-admin library and program: Admin console framework
typed-wire library, program and test: Language-independent type-safe communication
typed-wire-utils library: Haskell utility library required for code generated by typed-wire compiler
tyro library and test: Type derived JSON parsing using Aeson
u2f library and test: Haskell Universal Two Factor helper toolbox library thing
ua-parser library, test and benchmark: A library for parsing User-Agent strings, official Haskell port of ua-parser
uber library and test: Uber client for Haskell
ucam-webauth library and test: The Ucam-Webauth protocol, used by Raven
ucam-webauth-types library and test: Types for the Ucam-Webauth protocol, as used by Raven
unitym library: A monad type class shared between web services
unitym-servant library: Implementaation of unitym for Servant servers
unitym-yesod library: Implementation of the unity monad for the Yesod framework
uploadcare library: Haskell client for Uploadcare.
urbit-airlock library: Talk to Urbit from Haskell
urbit-api library: Talk to Urbit from Haskell
uri-bytestring library, test and benchmark: Haskell URI parsing as ByteStrings
uri-encode library and programs: Unicode aware uri-encoding
uri-parse library and test: A simple library for parsing and generating URIs
uri-template library and program: URI template library for Haskell
url library: A library for working with URLs.
url-decoders library, test and benchmarks: Decoders for URL-encoding (aka Percent-encoding)
url-generic library: Parse/format generic key/value URLs from record data types.
UrlDisp library: Url dispatcher. Helps to retain friendly URLs in web applications.
urlencoded library and test: Generate or process x-www-urlencoded data
urlpath library: Painfully simple URL deployment.
URLT library: Library for maintaining correctness of URLs within an application.
users library: A library simplifying user management for web applications
users-mysql-haskell library and test: A mysql-haskell backend for the users library.
users-postgresql-simple library and test: A PostgreSQL backend for the users package
users-test library: Library to test backends for the users library
uzbl-with-source library: Utility function for reading a source of loaded uzbl pages.
validate-input library and test: Input validation combinator library
validated-types library and test: Type-level constraints on strings and other input
validations library and test: A nice way to define field validations in Haskell.
validity-scientific library: Validity instances for scientific
validity-text library: Validity instances for text
validity-uuid library: Validity instances for uuid
vcatt library and program: Recursively check that a directory is under version control.
vcs-web-hook-parse library: Parse development platform web hook messages.
vgrep library, program and tests: A pager for grep
Villefort library, program and test: Villefort is a task manager and time tracker
vinyl-json library and test: Provide json instances automagically to vinyl types
vinyl-operational library: Initial project template from stack
vinyl-plus library and test: Vinyl records utilities
vk-aws-route53 library: Amazon Route53 DNS service plugin for the aws package.
VKHS library and program: Provides access to Vkontakte social network via public API
waargonaut library and tests: JSON wrangling
wahsp library: A haskell binding of the Web Audio API ala blank-canvas
wai library and test: Web Application Interface.
wai-accept-language library and program: Rewrite based on Accept-Language header
wai-app-file-cgi library and tests: File/CGI/Rev Proxy App of WAI
wai-app-static library, program and test: WAI application for static serving
wai-cli library: Command line runner for Wai apps (using Warp) with TLS, CGI, ...
wai-conduit library: conduit wrappers for WAI
wai-control library: Run wai Applications in IO based monads
wai-cors library and tests: CORS for WAI
wai-devel library, program and test: A web server for the development of WAI compliant web applications.
wai-digestive-functors library: Helpers to bind digestive-functors onto wai requests
wai-dispatch library: Nice wrapper around yesod-routes for use with WAI
wai-enforce-https library, programs and test: Enforce HTTPS in Wai server app safely.
wai-eventsource library: WAI support for server-sent events (deprecated)
wai-extra library, program and test: Provides some basic WAI handlers and middleware.
wai-feature-flags library and program: Feature flag support for WAI applications.
wai-frontend-monadcgi library: Run CGI apps on WAI.
wai-git-http library and test: Git http-backend CGI App of WAI
wai-handler-devel library and programs: WAI server that automatically reloads code after modification. (deprecated)
wai-handler-fastcgi library: Wai handler to fastcgi
wai-handler-launch library: Launch a web app in the default browser.
wai-handler-scgi library: Wai handler to SCGI (deprecated)
wai-handler-snap library: Web Application Interface handler using snap-server. (deprecated)
wai-handler-webkit library: Turn WAI applications into standalone GUIs using QtWebkit.
wai-hastache library: Nice wrapper around hastache for use with WAI
wai-hmac-auth library and test: hmac authentication tools for WAI apps
wai-http2-extra library and test: WAI utilities for HTTP/2
wai-lambda library and program: Haskell Webapps on AWS Lambda
wai-lens library: Lenses for WAI
wai-lite library: ...
wai-log library: A logging middleware for WAI applications
wai-logger library and test: A logging system for WAI
wai-logger-buffered library, program and test: Buffer requets before logging them
wai-logger-prefork library: A logging system for preforked WAI apps
wai-middleware-auth library, program and test: Authentication middleware that secures WAI application
wai-middleware-brotli library, program and test: WAI middleware for brotli compression
wai-middleware-cache library and test: Caching middleware for WAI.
wai-middleware-cache-redis library: Redis backend for wai-middleware-cache
wai-middleware-caching library and test: WAI Middleware to cache things
wai-middleware-caching-lru library and test: Initial project template from stack
wai-middleware-caching-redis library and test: Cache Wai Middleware using Redis backend
wai-middleware-catch library: Wai error catching middleware
wai-middleware-clacks library and test: GNU Terry Pratchett - Add the X-Clacks-Overhead Header to Wai Responses.
wai-middleware-content-type library and test: Route to different middlewares based on the incoming Accept header.
wai-middleware-crowd library and program: Middleware and utilities for using Atlassian Crowd authentication
wai-middleware-delegate library and test: WAI middleware that delegates handling of requests.
wai-middleware-etag library: WAI ETag middleware for static files
wai-middleware-gunzip library: WAI middleware to unzip request bodies
wai-middleware-headers library: cors and addHeaders for WAI
wai-middleware-hmac library and tests: HMAC Authentication Middleware for WAI
wai-middleware-hmac-client library and program: WAI HMAC Authentication Middleware Client
wai-middleware-json-errors library and test: Converts errors from plaintext to json
wai-middleware-metrics library, test and benchmark: A WAI middleware to collect EKG request metrics
wai-middleware-preprocessor library and test: WAI middleware for preprocessing static files
wai-middleware-rollbar library: Middleware that communicates to Rollbar.
wai-middleware-route library and test: Wai dispatch middleware
wai-middleware-slack-verify library, program and test: WAI Slack request verification middleware
wai-middleware-static library and test: WAI middleware that serves requests to static files.
wai-middleware-static-caching library: WAI middleware that serves requests to static files.
wai-middleware-static-embedded library: Serve embedded static files as a Wai middleware
wai-middleware-throttle library and test: WAI Middleware for Request Throttling
wai-middleware-travisci library: WAI middleware for authenticating webhook payloads from Travis CI
wai-middleware-validation library and tests: WAI Middleware to validate the request and response bodies
wai-middleware-verbs library: Route Wai middlewares based on HTTP verbs
wai-predicates library and test: WAI request predicates
wai-route library and tests: WAI middleware for path-based request routing with captures.
wai-router library: Provides basic routing on URL paths for WAI.
wai-routing library, test and benchmark: Declarative routing for WAI.
wai-secure-cookies library, program and test
wai-session library: Flexible session middleware for WAI
wai-session-alt library: An alternative session middleware for WAI.
wai-session-clientsession library: Session store based on clientsession
wai-session-mysql library and test: MySQL backed Wai session store
wai-session-postgresql library and test: PostgreSQL backed Wai session store
wai-session-redis library, program and test: Simple Redis backed wai-session backend.
wai-session-tokyocabinet library: Session store based on Tokyo Cabinet
wai-slack-middleware library and test: A Slack middleware for WAI
wai-static-cache library: A simple cache for serving static files in a WAI middleware
wai-static-pages library: generate static html pages from a WAI application
wai-test library: Unit test framework (built on HUnit) for WAI applications. (deprecated)
wai-thrift library: Thrift transport layer for Wai
wai-throttler library: Wai middleware for request throttling
wai-util library: Collection of utility functions for use with WAI
wai-websockets library and program: Provide a bridge between WAI and the websockets package.
waitra library, program and test: A very simple Wai router
waldo library and programs: A generator of comics based on some ascertainable data about the requester.
warp library, tests and benchmark: A fast, light-weight web server for WAI applications.
warp-static program: Static file server based on Warp and wai-app-static (deprecated)
warp-systemd library: Socket activation and other systemd integration for the Warp web server (WAI)
warp-tls library: HTTP over TLS support for Warp via the TLS package
warp-tls-uid library and test: set group and user id before running server
WashNGo library and programs: WASH is a family of EDSLs for programming Web applications in Haskell.
web-css library: Simple functions for CSS.
web-encodings library and program: Encapsulate multiple web encoding in a single package. (deprecated)
web-fpco library: Wrappers for web frameworks to ease usage with the FP Complete environment.
web-inv-route library and test: Composable, reversible, efficient web routing using invertible invariants and bijections
web-mongrel2 library: Bindings for the Mongrel2 web server.
web-page library and program: Monoidally construct web pages
web-plugins library: dynamic plugin system for web applications
web-push library and test: Send messages using Web Push protocol.
web-rep library, program and test: representations of a web page
web-routes library and test: portable, type-safe URL routing
web-routes-boomerang library: Use boomerang for type-safe URL parsers/printers
web-routes-generics library: portable, type-safe URL routing
web-routes-happstack library: Adds support for using web-routes with Happstack
web-routes-hsp library: Adds XMLGenerator instance for RouteT monad
web-routes-mtl library: Extends web-routes with mtl-based MonadIO / MonadTrans RouteT instances
web-routes-quasi library and program: ...
web-routes-regular library: portable, type-safe URL routing
web-routes-th library and test: Support for deriving PathInfo using Template Haskell
web-routes-transformers library: Extends web-routes with some transformers instances for RouteT
web-routes-wai library: Library for maintaining correctness of URLs within an application.
web-routing library, test and benchmark: simple routing library
webapi library and test: WAI based library for web api
webapp library and test: Haskell web app framework based on WAI & Warp
webauthn library: Web Authentication API
webby library and test: A super-simple web server framework
webcloud library and program: Turn an optparse-applicative program into a CGI program!
WebCont library: Continuation based web programming for Happstack
webcrank library and test: Webmachine inspired toolkit for building http applications and services.
webcrank-dispatch library: A simple request dispatcher.
webcrank-wai library: Build a WAI Application from Webcrank Resources
webdriver library: a Haskell client for the Selenium WebDriver protocol
webdriver-angular library and test: Webdriver actions to assist with testing a webpage which uses Angular.Js
webdriver-snoy library and test: a Haskell client for the Selenium WebDriver protocol (deprecated)
webdriver-w3c library, programs and test: Bindings to the WebDriver API
webex-teams-api library, program and test: A Haskell bindings for Webex Teams API
webex-teams-conduit library, program and test: Conduit wrapper of Webex Teams List API
webex-teams-pipes library, program and test: Pipes wrapper of Webex Teams List API
webfinger-client library: WebFinger client library
webgear-server library and test: Composable, type-safe library to build HTTP API servers
webify program: webfont generator
webmention library and test: Types and functions for working with Webmentions.
webpage library: Organized and simple web page scaffold for blaze and lucid
webshow program: Show programming language printed values in a web UI
websnap program: Transforms URLs to PNGs
websockets-rpc library and test: Simple streaming RPC mechanism using WebSockets
websockets-simple library and test: Composable websockets clients
webwire library: Functional reactive web framework
weigh library and test: Measure allocations of a Haskell functions/values
welshy library: Haskell web framework (because Scotty had trouble yodeling)
Wheb library and test: The frictionless WAI Framework
wheb-redis library: Redis connection for Wheb
wheb-strapped library: Strapped templates for Wheb
wikicfp-scraper library and test: Scrape WikiCFP web site
willow library and tests: An implementation of the web Document Object Model, and its rendering.
windowslive library and program: Implements Windows Live Web Authentication and Delegated Authentication
witty program: A network server to show bottlenecks of GHC
word-vector library: Initial project template from stack
wordchoice library, program, test and benchmark: Get word counts and distributions
wordpress-auth library: Validate Wordpress Cookies & Nonces; Build Wordpress Hashes & Salts
wrecker library and program: An HTTP Performance Benchmarker
wrecker-ui program: A web interface for Wrecker, the HTTP Performance Benchmarker
wreq library, program and tests: An easy-to-use HTTP client library.
wreq-patchable library, program and tests: An easy-to-use HTTP client library.
wreq-sb library, program and tests: An easy-to-use HTTP client library.
wreq-stringless library: Simple wrapper to use wreq without Strings
write-buffer-core library: Buffer your writes, transparently
write-buffer-stm library: A write buffer for STM channels and queues.
wryte library and test: Pretty output for source generators
ws library and program: A simple CLI utility for interacting with a websocket
wshterm program: Terminal emulator over websockets.
wstunnel library, program and test: Tunneling program over websocket protocol
WURFL library: Convert the WURFL file into a Parsec parser
xhtml library: An XHTML combinator library
xhtml-combinators library: Fast and easy to use XHTML combinators.
xing-api library, programs and test: Wrapper for the XING API, v1.
xml-conduit-stylist library: Bridge between xml-conduit/html-conduit and stylist
xml-to-json library and program: Library and command line tool for converting XML files to json
xml-to-json-fast library and program: Fast, light converter of xml to json capable of handling huge xml files
xml-tydom-conduit library and test: Typed XML encoding for an xml-conduit backend.
xml-tydom-core library: Typed XML encoding (core library).
xmonad-vanessa library, programs and test: Custom xmonad, which builds with stack or cabal.
xss-sanitize library and test: sanitize untrusted HTML to prevent XSS attacks
Yablog program: A simple blog engine powered by Yesod.
yackage programs: Personal Hackage replacement for testing new packages.
yahoo-finance-api library and tests: Read quotes from Yahoo Finance API.
yahoo-prices library and test: A wrapper around Yahoo API for downloading market data.
yahoo-web-search library: Yahoo Web Search Services
yam library and test: A wrapper of servant
yam-datasource library: Yam DataSource Middleware
yam-redis library: Yam Redis Middleware
yam-servant library
yesod library: Creation of type-safe, RESTful web applications.
yesod-alerts library: Alert messages for the Yesod framework
yesod-angular library: Angular JS integratoin
yesod-angular-ui library: Angular Helpers
yesod-articles library and test: Automatically generate article previews for a yesod site
yesod-auth library: Authentication for Yesod.
yesod-auth-account library and test: An account authentication plugin for Yesod
yesod-auth-account-fork library and test: An account authentication plugin for Yesod
yesod-auth-basic library and test: Yesod Middleware for HTTP Basic Authentication
yesod-auth-bcrypt library: BCrypt salted and hashed passwords in a database as auth for yesod
yesod-auth-bcryptdb library: Authentication plugin for Yesod.
yesod-auth-deskcom library: Desk.com remote authentication support for Yesod apps.
yesod-auth-fb library: Authentication backend for Yesod using Facebook.
yesod-auth-hashdb library and tests: Authentication plugin for Yesod.
yesod-auth-hmac-keccak library: An account authentication plugin for yesod with encrypted token transfer.
yesod-auth-kerberos library: Kerberos Authentication for Yesod.
yesod-auth-ldap library: LDAP Authentication for Yesod.
yesod-auth-ldap-mediocre library: Very simlple LDAP auth for yesod
yesod-auth-ldap-native library and test: Yesod LDAP authentication plugin
yesod-auth-lti13 library and program: A yesod-auth plugin for LTI 1.3
yesod-auth-nopassword library: A plugin for Yesod to provide email-only authentication.
yesod-auth-oauth library: OAuth Authentication for Yesod.
yesod-auth-oauth2 library, program and test: OAuth 2.0 authentication plugins
yesod-auth-pam library: Provides PAM authentication module
yesod-auth-smbclient library: Authentication plugin for Yesod using smbclient
yesod-auth-zendesk library: Zendesk remote authentication support for Yesod apps.
yesod-bin program: The yesod helper executable.
yesod-bootstrap library: Bootstrap widgets for yesod
yesod-colonnade library: Helper functions for using yesod with colonnade
yesod-comments library: A generic comments interface for a Yesod application
yesod-content-pdf library and test: PDF Content Type for Yesod
yesod-continuations library and program: Continuations for Yesod
yesod-core library, tests and benchmark: Creation of type-safe, RESTful web applications.
yesod-crud library: Generic administrative CRUD operations as a Yesod subsite
yesod-crud-persist library: Flexible CRUD subsite usable with Yesod and Persistent.
yesod-csp library and test: Add CSP headers to Yesod apps
yesod-datatables library and test: Yesod plugin for DataTables (jQuery grid plugin)
yesod-default library: Default config and main functions for your yesod application (deprecated)
yesod-dsl library and program: DSL for generating Yesod subsite to manage an RDBMS;
yesod-elements library: Non template haskell markup building function in the spirit of lucid
yesod-eventsource library: Server-sent events support for Yesod apps.
yesod-examples programs: Example programs using the Yesod Web Framework. (deprecated)
yesod-fay library: Utilities for using the Fay Haskell-to-JS compiler with Yesod.
yesod-fb library: Useful glue functions between the fb library and Yesod.
yesod-filter library and tests: Automatic filter generator for Yesod
yesod-form library and test: Form handling support for Yesod Web Framework
yesod-form-bootstrap4 library: renderBootstrap4
yesod-form-bulma library, programs and test: support Bulma form for Yesod
yesod-form-json library: Extension for Yesod web framework to handle JSON requests as applicative forms
yesod-form-multi library: Multi-input form handling for Yesod Web Framework
yesod-form-richtext library: Various rich-text WYSIWYG editors for Yesod forms.
yesod-gitrepo library: Host content provided by a Git repo
yesod-gitrev library and test: A subsite for displaying git information.
yesod-goodies library: A collection of various small helpers useful in any yesod application.
yesod-ip library: Code for using the ip package with yesod
yesod-job-queue library, program and test: Background jobs library for Yesod.
yesod-json library: Generate content for Yesod using the aeson package. (deprecated)
yesod-katip library: Logging bridge between Yesod and Katip
yesod-links library: A typeclass which simplifies creating link widgets throughout your site
yesod-lucid library: Lucid support for Yesod
yesod-mangopay library and program: Yesod library for MangoPay API access
yesod-markdown library and test: Tools for using markdown in a yesod application
yesod-newsfeed library: Helper functions and data types for producing News feeds.
yesod-paginate library: Pagination for Yesod sites.
yesod-pagination library and test: Pagination in Yesod
yesod-paginator library, program and tests: A pagination approach for yesod
yesod-persistent library and test: Some helpers for using Persistent from Yesod.
yesod-platform library: Meta package for Yesod (deprecated)
yesod-pnotify library and program: Yet another getMessage/setMessage using pnotify jquery plugins
yesod-pure library: Yesod in pure Haskell: no Template Haskell or QuasiQuotes (deprecated)
yesod-purescript library: PureScript integration for Yesod
yesod-raml library and test: RAML style route definitions for Yesod
yesod-raml-bin program: The raml helper executable.
yesod-raml-docs library: A html documentation generator library for RAML.
yesod-raml-mock library and test: A mock-handler generator library from RAML.
yesod-recaptcha library: Dead simple support for reCAPTCHA on Yesod applications.
yesod-recaptcha2 library: yesod recaptcha2
yesod-routes library and test: Efficient routing for Yesod. (deprecated)
yesod-routes-flow library: Generate Flow routes for Yesod
yesod-routes-typescript library: generate TypeScript routes for Yesod
yesod-rst library: Tools for using reStructuredText (RST) in a yesod application
yesod-sass library: A simple quasiquoter to include sass code in yesod
yesod-sitemap library: Generate XML sitemaps.
yesod-static library and test: Static file serving subsite for Yesod Web Framework.
yesod-static-angular library, programs and test: Yesod generators for embedding AngularJs code into yesod-static at compile time
yesod-table library: HTML tables for Yesod
yesod-test library and test: integration testing for WAI/Yesod Applications
yesod-test-json library: Utility functions for testing JSON web services written in Yesod
yesod-tls library: Provides main functions using warp-tls for yesod projects
yesod-transloadit library and test: Transloadit support for Yesod
yesod-vend library and program: Simple CRUD classes for easy view creation for Yesod
yesod-websockets library: WebSockets support for Yesod
yesod-websockets-extra library: Extension to yesod-websockets
yesod-worker library and test: Initial project template from stack
youtube programs: Upload video to YouTube via YouTube API
yql library and program: A YQL engine to execute Open Data Tables
ytl library: mtl-style transformations for Yesod sites
yu-auth library and tests: Auth module for Yu.
yu-core library and test: The core of Yu.
yu-launch program: The launcher for Yu.
yu-tool program: Tool for Yu
yu-utils library: Utils for Yu
yuiGrid library: Grids defined by layout hints and implemented on top of Yahoo grids.
zenacy-html library, program, test and benchmark: A standard compliant HTML parsing library
zenacy-unicode library and test: Unicode utilities for Haskell
zerobin library and programs: Post to 0bin services
zeromq4-conduit library and test: Conduit wrapper around zeromq4-haskell
ziptastic-client library and test: A type-safe client for the Ziptastic API for doing forward and reverse geocoding.
ziptastic-core library and test: Core Servant specification for the Ziptastic API for doing forward and reverse geocoding.

Web Server

hws program: Simple Haskell Web Server

Web Yesod

shakespeare-babel library: compile es2015

Webdevelopment

css-easings library: Defining and manipulating css easing strings.

WebDriver

webdriver library: a Haskell client for the Selenium WebDriver protocol
webdriver-w3c library, programs and test: Bindings to the WebDriver API

Webframework

olwrapper library and program: An OpenLayers JavaScript Wrapper and Webframework with snaplet-fay

Welcome

manatee-welcome library and program: Welcome module to help user play Manatee quickly.

Wiki

claferwiki library: A wiki-based IDE for literate modeling with Clafer

Workflow

cached library and test: Cache values to disk.
Workflow library: Workflow patterns over a monad for thread state logging & recovery

Wsjtx

wsjtx-udp library and program: WSJT-X UDP protocol

X11

place-cursor-at program: A utility for X11 that moves the mouse cursor using the keyboard
xcffib library, program and tests: A cffi-based python binding for X

XFCE

xfconf library and programs: FFI bindings to xfconf

XML

atom-conduit library and tests: Streaming parser/renderer for the Atom 1.0 standard (RFC 4287).
aws-sdk-xml-unordered library and test: The xml parser for aws-sdk package
c14n library: Bindings to the c14n implementation in libxml.
cmathml3 library and program: Data model, parser, serialiser and transformations for Content MathML 3
concrete-relaxng-parser program: A parser driven by a standard RELAX NG schema with concrete syntax extensions.
dom-parser library and test: Simple monadic DOM parser
dtd-text library: Parse and render XML DTDs
dtd-types library: Basic types for representing XML DTDs
expat-enumerator library: Enumerator-based API for Expat
fadno-xml library: XML/XSD combinators/schemas/codegen
fast-tagsoup library: Fast parsing and extracting information from (possibly malformed) HTML/XML documents
fast-tagsoup-utf8-only library: Fast parser for tagsoup package
flight-kml library and tests: Parsing of pilot tracklogs dumped as KML.
formlets library: Formlets implemented in Haskell
formlets-hsp library: HSP support for Formlets
FpMLv53 library: A binding for the Financial Products Markup Language (v5.3)
generic-xml library: Marshalling Haskell values to/from XML
generic-xmlpickler library and test: Generic generation of HXT XmlPickler instances using GHC Generics
google-mail-filters library and test: Write GMail filters and output to importable XML
HaXml library and programs: Utilities for manipulating XML documents
hexml library and test: XML subset DOM parser
hexpat library: XML parser/formatter based on expat
hexpat-iteratee library: Chunked XML parsing using iteratees
hexpat-lens library: Lenses for Hexpat.
hexpat-pickle library: XML picklers based on hexpat, source-code-similar to those of the HXT package
hexpat-pickle-generic library and test: Picklers for de/serialising Generic data types to and from XML
hexpat-tagsoup library: Parse (possibly malformed) HTML to hexpat tree
hextream library and tests: Streaming-friendly XML parsers
html-tokenizer library and test: An "attoparsec"-based HTML tokenizer
hw-xml library, program, tests and benchmark: XML parser based on succinct data structures.
HXQ library: A Compiler from XQuery to Haskell
hxt library: A collection of tools for processing XML with Haskell.
hxt-binary library: Serialisation and deserialisation of HXT XmlTrees.
hxt-cache library: Cache for HXT XML Documents and other binary data
hxt-css library and program: CSS selectors for HXT
hxt-curl library: LibCurl interface for HXT
hxt-expat library: Expat parser for HXT
hxt-extras library: Extra functions for HXT
hxt-filter library: A collection of tools for processing XML with Haskell (Filter variant).
hxt-http library: Interface to native Haskell HTTP package HTTP
hxt-pickle-utils library: Utility functions for using HXT picklers.
hxt-relaxng library: The HXT RelaxNG validator
hxt-tagsoup library: TagSoup parser for HXT
hxt-xpath library: The XPath modules for HXT.
hxt-xslt library: The XSLT modules for HXT.
hxthelper library: Helper functions for HXT
invertible-hxt library: invertible transformer instances for HXT Picklers
islink library: Check if an HTML element is a link
keylayouts library: Tools for macOS .keylayout files
libxml library: Binding to libxml2
libxml-enumerator library: Enumerator-based API for libXML's SAX interface
libxml-sax library: Bindings for the libXML2 SAX interface
libxslt library: Binding to libxslt
musicxml library: MusicXML format encoded as Haskell type and functions of reading and writting.
opml-conduit library and tests: Streaming parser/renderer for the OPML 2.0 format.
parsec-tagsoup library: Parsec parsers for Tagsoup tag streams
plist library: Generate and parse Mac OS X property list format
polysoup library: Online XML parsing with polyparse and tagsoup
property-list library: Apple property list parser
pugixml library and test: pugixml binding.
pxsl-tools program: Parsimonious XML Shorthand Language--to-XML compiler
quickcheck-relaxng library: Generate RelaxNG-constrained XML documents for QuickCheck
regular-xmlpickler library: Generic generation of HXT XmlPickler instances using Regular.
rss-conduit library and tests: Streaming parser/renderer for the RSS standard.
selectors library: CSS Selectors for DOM traversal
sxml library: A SXML-parser
symantic-atom library and test: Library for reading and writing Atom.
symantic-xml library and test: Library for reading, validating and writing XML.
tagchup library, programs, test and benchmark: alternative package for processing of tag soups
tagsoup library and test: Parsing and extracting information from (possibly malformed) HTML/XML documents
tagsoup-ht library and programs: alternative parser for the tagsoup package
tagsoup-megaparsec library and test: A Tag token parser and Tag specific parsing combinators
tagsoup-parsec library: Tokenizes Tag, so [ Tag ] can be used as parser input.
text-xml-generic library: Serialize Data to XML (strings).
tinyXml library, program and test: A fast DOM parser for a subset of XML
tofromxml library and test: Reading and writing Haskell data from and to XML
twiml library and test: TwiML library for Haskell
wraxml library and program: Lazy wrapper to HaXML, HXT, TagSoup via custom XML tree structure
wsdl library and test: WSDL parsing in Haskell
X library: A light-weight XML library
xeno library, test and benchmarks: A fast event-based XML parser in pure Haskell
xhtml library: An XHTML combinator library
xleb library and program: A simple monadic language for parsing XML structures.
xml library: A simple XML library.
xml-basic library: Basics for XML/HTML representation and processing
xml-conduit library and tests: Pure-Haskell utilities for dealing with XML with the conduit package.
xml-conduit-decode library and test: Historical cursors & decoding on top of xml-conduit.
xml-conduit-parse library and tests: Streaming XML parser based on conduits.
xml-enumerator library and test: Pure-Haskell utilities for dealing with XML with the enumerator package. (deprecated)
xml-enumerator-combinators library and program: Parser combinators for xml-enumerator and compatible XML parsers.
xml-extractors library: Extension to the xml package to extract data from parsed xml
xml-helpers library: Some useful helper functions for the xml library.
xml-lens library: Lenses, traversals, and prisms for xml-conduit
xml-monad library: Monadic extensions to the xml package.
xml-optics library: Optics for xml-conduit
xml-picklers library and test: XML picklers based on xml-types, ported from hexpat-pickle
xml-pipe library: XML parser which uses simple-pipe
xml-query library: A parser-agnostic declarative API for querying XML-documents
xml-query-xml-conduit library: A binding for the "xml-query" and "xml-conduit" libraries
xml-query-xml-types library and test: An interpreter of "xml-query" queries for the "xml-types" documents
xml-to-json library and program: Library and command line tool for converting XML files to json
xml-to-json-fast library and program: Fast, light converter of xml to json capable of handling huge xml files
xml-tydom-conduit library and test: Typed XML encoding for an xml-conduit backend.
xml-tydom-core library: Typed XML encoding (core library).
xml-types library: Basic types for representing XML
xml2html library: blaze-html instances for xml-conduit types (deprecated)
xmlbf library and test: XML back and forth! Parser, renderer, ToXml, FromXml, fixpoints.
xmlgen library, test and benchmark: Fast XML generation library
xmlhtml library and test: XML parser and renderer with HTML 5 quirks mode
XMLParser library: A library to parse xml
xsd library and test: XML Schema data structures

XMonad

TaskMonad library: A collection of tools which can be used to access taskwarrior from xmonad.
xmonad-entryhelper library: XMonad config entry point wrapper
xmonad-screenshot library: Workspaces screenshooting utility for XMonad.
xmonad-spotify library: Bind media keys to work with Spotify
xmonad-volume library: XMonad volume controls
xmonad-windownames library: A library to automatically put named windows into the DynamicLog.

YAML

aeson-yaml library, program and test: Output any Aeson value as YAML (pure Haskell library)
dhall-fly library, program and test: Translate concourse config from Dhall to YAML
HsYAML-aeson library: JSON to YAML Adapter

Yampa

YFrob library: Yampa-based library for programming robots

Yesod

classy-prelude-yesod library: Provide a classy prelude including common Yesod functionality.
cookie library and test: HTTP cookie parsing and rendering
corebot-bliki library and program: A bliki written using yesod. Uses pandoc to process files stored in git.
css-text library and test: CSS parser and renderer.
elm-yesod library: The Elm language Yesod compatibility module.
encryptable library and test: Typed encryption with persistent support
friendly-time library and test: Print time information in friendly ways
hamlet library: Haml-like template files that are compile-time checked (deprecated)
keter library, program and test: Web application deployment manager, focusing on Haskell web frameworks
lmonad-yesod library: LMonad for Yesod integrates LMonad's IFC with Yesod web applications.
path-pieces library and test: Components of paths.
persistent library, test and benchmark: Type-safe, multi-backend data serialization.
persistent-audit library, program and test: Parses a Persist Model file and produces Audit Models
persistent-mysql library and test: Backend for the persistent library using MySQL database server.
persistent-mysql-haskell library, program and test: A pure haskell backend for the persistent library using MySQL database server.
persistent-odbc library and program: Backend for the persistent library using ODBC
persistent-parser library and test: Parse persistent model files
persistent-postgresql library, program and test: Backend for the persistent library using postgresql.
persistent-qq library and test: Provides a quasi-quoter for raw SQL for persistent
persistent-sqlite library, program and test: Backend for the persistent library using sqlite3.
persistent-template library: Type-safe, non-relational, multi-backend persistence.
persistent-template-classy library and test: Generate classy lens field accessors for persistent models
persistent-test library: Tests for Persistent
pool library: Thread-safe resource pools. (deprecated)
pool-conduit library: Resource pool allocations via ResourceT. (deprecated)
shakespeare library and test: A toolkit for making compile-time interpolated templates
shakespeare-css library: Stick your haskell variables into css at compile time. (deprecated)
shakespeare-i18n library: A type-based approach to internationalization. (deprecated)
shakespeare-js library: Stick your haskell variables into javascript/coffeescript at compile time. (deprecated)
shakespeare-text library: Interpolation with quasi-quotation: put variables strings (deprecated)
shorten-strings library: Shorten a variety of string-like types adding ellipsis
slug library and test: Type-safe slugs for Yesod ecosystem
wai-app-file-cgi library and tests: File/CGI/Rev Proxy App of WAI
wai-app-static library, program and test: WAI application for static serving
wai-git-http library and test: Git http-backend CGI App of WAI
wai-logger library and test: A logging system for WAI
wai-logger-prefork library: A logging system for preforked WAI apps
wai-test library: Unit test framework (built on HUnit) for WAI applications. (deprecated)
wai-websockets library and program: Provide a bridge between WAI and the websockets package.
warp library, tests and benchmark: A fast, light-weight web server for WAI applications.
warp-tls library: HTTP over TLS support for Warp via the TLS package
web-routes-quasi library and program: ...
yackage programs: Personal Hackage replacement for testing new packages.
yesod library: Creation of type-safe, RESTful web applications.
yesod-articles library and test: Automatically generate article previews for a yesod site
yesod-auth library: Authentication for Yesod.
yesod-auth-bcrypt library: BCrypt salted and hashed passwords in a database as auth for yesod
yesod-auth-bcryptdb library: Authentication plugin for Yesod.
yesod-auth-deskcom library: Desk.com remote authentication support for Yesod apps.
yesod-auth-hashdb library and tests: Authentication plugin for Yesod.
yesod-auth-kerberos library: Kerberos Authentication for Yesod.
yesod-auth-ldap library: LDAP Authentication for Yesod.
yesod-auth-ldap-native library and test: Yesod LDAP authentication plugin
yesod-auth-lti13 library and program: A yesod-auth plugin for LTI 1.3
yesod-auth-oauth library: OAuth Authentication for Yesod.
yesod-auth-pam library: Provides PAM authentication module
yesod-auth-smbclient library: Authentication plugin for Yesod using smbclient
yesod-auth-zendesk library: Zendesk remote authentication support for Yesod apps.
yesod-bin program: The yesod helper executable.
yesod-comments library: A generic comments interface for a Yesod application
yesod-core library, tests and benchmark: Creation of type-safe, RESTful web applications.
yesod-datatables library and test: Yesod plugin for DataTables (jQuery grid plugin)
yesod-default library: Default config and main functions for your yesod application (deprecated)
yesod-dsl library and program: DSL for generating Yesod subsite to manage an RDBMS;
yesod-eventsource library: Server-sent events support for Yesod apps.
yesod-examples programs: Example programs using the Yesod Web Framework. (deprecated)
yesod-fay library: Utilities for using the Fay Haskell-to-JS compiler with Yesod.
yesod-form library and test: Form handling support for Yesod Web Framework
yesod-form-bulma library, programs and test: support Bulma form for Yesod
yesod-form-json library: Extension for Yesod web framework to handle JSON requests as applicative forms
yesod-form-multi library: Multi-input form handling for Yesod Web Framework
yesod-form-richtext library: Various rich-text WYSIWYG editors for Yesod forms.
yesod-goodies library: A collection of various small helpers useful in any yesod application.
yesod-json library: Generate content for Yesod using the aeson package. (deprecated)
yesod-links library: A typeclass which simplifies creating link widgets throughout your site
yesod-lucid library: Lucid support for Yesod
yesod-markdown library and test: Tools for using markdown in a yesod application
yesod-newsfeed library: Helper functions and data types for producing News feeds.
yesod-paginate library: Pagination for Yesod sites.
yesod-paginator library, program and tests: A pagination approach for yesod
yesod-paypal-rest library: Yesod plugin to use PayPal with the paypal-rest-client library.
yesod-persistent library and test: Some helpers for using Persistent from Yesod.
yesod-platform library: Meta package for Yesod (deprecated)
yesod-pnotify library and program: Yet another getMessage/setMessage using pnotify jquery plugins
yesod-pure library: Yesod in pure Haskell: no Template Haskell or QuasiQuotes (deprecated)
yesod-purescript library: PureScript integration for Yesod
yesod-raml library and test: RAML style route definitions for Yesod
yesod-raml-bin program: The raml helper executable.
yesod-raml-docs library: A html documentation generator library for RAML.
yesod-raml-mock library and test: A mock-handler generator library from RAML.
yesod-routes library and test: Efficient routing for Yesod. (deprecated)
yesod-rst library: Tools for using reStructuredText (RST) in a yesod application
yesod-s3 library: Simple Helper Library for using Amazon's Simple Storage Service (S3) with Yesod
yesod-sitemap library: Generate XML sitemaps.
yesod-static library and test: Static file serving subsite for Yesod Web Framework.
yesod-tableview library: Table view for Yesod applications
yesod-test library and test: integration testing for WAI/Yesod Applications
yesod-text-markdown library: Yesod support for Text.Markdown.
yesod-tls library: Provides main functions using warp-tls for yesod projects
yesod-vend library and program: Simple CRUD classes for easy view creation for Yesod

Yi

dynamic-state library: Optionally serializable dynamic state keyed by type
yi program: Yi editor
yi-core library, test and benchmark: Yi editor core library
yi-dynamic-configuration library: Dynamic configuration support for Yi
yi-emacs-colours library: Simple mapping from colour names used in emacs to Color
yi-frontend-pango library: Pango frontend for Yi editor
yi-frontend-vty library: Vty frontend for Yi editor
yi-fuzzy-open library: Fuzzy open plugin for yi
yi-ireader library: Yi editor incremental reader
yi-keymap-cua library: Cua keymap for Yi editor
yi-keymap-emacs library: Emacs keymap for Yi editor
yi-keymap-vim library and test: Vim keymap for Yi editor
yi-language library and test: Collection of language-related Yi libraries.
yi-misc-modes library: Yi editor miscellaneous modes
yi-mode-haskell library: Yi editor haskell mode
yi-mode-javascript library: Yi editor javascript mode
yi-rope library, test and benchmark: A rope data structure used by Yi
yi-snippet library and test: Snippet support for yi

Zeromq

patterns library: Common patterns in message-oriented applications

Zift

zifter library and test: zifter
zifter-cabal library: zifter-cabal
zifter-git library: zifter-git
zifter-google-java-format library: zifter-google-java-format
zifter-hindent library: zifter-hindent
zifter-hlint library: zifter-hlint
zifter-stack library and test: zifter-stack

Zip

asset-bundle library: A build-time Cabal library that bundles executables with assets
conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.

Zippers

simple-zipper library and test: Zippers made slightly easier
zippers library and benchmark: Traversal based zippers

ZLib

potoki-zlib library: Streaming ZLib decompression

Unclassified

acc library, test and benchmark: Sequence optimized for monoidal construction and folding
acousticbrainz-client library and test: AcousticBrainz API client
aeson-json-ast library: Integration layer for "json-ast" and "aeson"
aeson-serialize library and test: Simple serialization functions for aeson types
almost-fix library: Recurse while a predicate is satisfied
amqp-worker library, program and test
animascii program and test: text-file based ASCII animator
ansi-escape-codes library: Haskell package to generate ANSI escape codes for styling strings in the terminal.
ar-timestamp-wiper library and program: Wipes time stamps from .a files (like ar -D)
ascii-art-to-unicode library, program and test: ASCII Art to Unicode Box Drawing converter
ascii-string library and test: Compact representation of ASCII strings
astar-monad library and test
average library: An average (arithmetic mean) monoid.
backdropper library and program: Rotates backdrops for X11 displays using Imagemagic.
base-unicode-symbols library: Unicode alternatives for common functions and operators
basen library and test
basen-bytestring library and test
basic library: Lifting values from base types
bein programs: Bein is a provenance and workflow management system for bioinformatics.
belka library and test: HTTP client DSL
bifunctor library: Bifunctors
binary-tree library, tests and benchmark
bit-stream library, program, test and benchmark: Lazy, infinite, compact stream of Bool with O(1) indexing.
bitcoin-compact-filters library and test: BIP 158 compact block filters
bitcoind-regtest library, program and test: A library for working with bitcoin-core regtest networks
bitcoind-rpc library: A streamlined interface to bitcoin core using Haskoin types and Servant
black-jewel program and test: The pirate bay client.
blaze library: None
blazeMarker library: ...
ble library, programs and test: Bluetooth Low Energy (BLE) peripherals
bools library: None
brick-filetree library and test
cabalg library, program and tests: alias for cabal install from given git repo
calc program: A small compiler for arithmetic expressions.
canteven-config library: A pattern for configuring programs.
canteven-http library: Utilities for HTTP programming.
canteven-parsedate library and test: Date / time parsing utilities that try to guess the date / time format.
catalyst library: A Category typeclass hierarchy powerful enough to encode full programs.
cereal-data-dword library: Integration of "cereal" and "data-dword"
cereal-unordered-containers library: Integration of "cereal" and "unordered-containers"
cereal-uuid library: Integration of "cereal" and "uuid"
cgi-undecidable library: Undecidable instances for the cgi package.
charter library, program and test
choose-exe library and program: Command-line program to choose random element from a stream.
clexer library: Lexes C++ code into simple tokens
cli-builder library and tests: Simple project template from stack
cmptype library and test: Compare types of any kinds
codemonitor program: Tool that automatically runs arbitrary commands when files change on disk.
codeworld-api library and test: Graphics library for CodeWorld
cognimeta-utils library and program: Utilities for Cognimeta products (such as perdure). API may change often.
coin program: Simple account manager
comprehensions-ghc library and test: Plugin to generalize comprehensions
confcrypt library, program and test
constrained-category library, test and benchmark: Constrained Categories
constraint-classes library: Various typeclasses using ConstraintKinds
constraint-reflection library: Constraint reflection
containers-unicode-symbols library: Unicode alternatives for common functions and operators
continuum library and programs
continuum-client library
conversions library and test: Injective explicit total and partial conversions
cpuid program: Binding for the cpuid machine instruction on x86 compatible processors
craft library and test: A UNIX configuration management library in Haskell
csound-controllers library and test
cursedcsv program: Terminal tool for viewing tabular data
cursor-brick library
dag library and test: Compile-time, type-safe directed acyclic graphs.
Dao library, program and test: Dao is meta programming language with its own built-in interpreted language, ...
dao library, program and test: Dao is meta programming language with its own built-in interpreted language, ...
data-extra library: None
dataflower library, test and benchmark: A Pure-Haskell Timely Dataflow System
Deadpan-DDP library, program and test: Write clients for Meteor's DDP Protocol
definitive-sound library: A definitive package to handle sound and play it back
dependent-sum-template test: Template Haskell code to generate instances of classes in dependent-sum package
deque library and test: Double-ended queues
derangement library: Find derangements of lists
dhall-lsp-server library, program and tests: Language Server Protocol (LSP) server for Dhall
diet library and test: Discrete Interval Encoding Trees
diff library: Diff and patch
difference-monoid library and tests
diplomacy-server program: Play Diplomacy over HTTP
direm program: Deletes a directory and retains its contents in the parent directory
dockerfile-creator library and test
domain library and tests: Codegen helping you define domain models
domain-core library: Low-level API of "domain"
domain-optics library and test: Integration of domain with optics
download-media-content program: Simple tool to download images from RSS feeds (e.g. Flickr, Picasa)
drone library and test
duet library, program and test: A tiny language, ...
dvault program: Dead simple password manager
dyepack library and program: Programatically identify space leaks in your program.
dzen-dhall library, program and test: Configure dzen2 bars in Dhall language
eithers library: None
ekg-carbon library: An EKG backend to send statistics to Carbon (part of Graphite monitoring tools)
ekg-influxdb library: An EKG backend to send statistics to influxdb
elm-repl program and test: a REPL for Elm
elm2nix library, program and test: Turn your Elm project into buildable Nix project
engine-io-snap library
entangle library and program: An application (and library) to convert quipper circuits into Qpmc models.
Enum library and test: Non-crashing `Enum` operations
eve-cli library, program and test
exception-via library: DerivingVia for your hierarchical exceptions
exif library: A Haskell binding to a subset of libexif
exist library: Dependent sum type
exist-instances library: Instances for "exist" package (requires more language extensions and dependencies)
exp-cache library, program and test
Extra library: A grab bag of modules.
ez3 library: Z3 bonds with pure interface
fakedata-parser library and test
FastxPipe library: Fasta and Fastq streaming
feather library and test
fee-estimate library, program and test: Short description of your package
feed2lj program: (unsupported)
fences library: To be written
final library: utility to add extra safety to monadic returns
flashblast library and program: Generate language learning flashcards from video.
foldable1 library: Foldable types with at least 1 element
format-status program: A utility for writing the date to dzen2.
fpipe library: F#-style composition and application
frown program: LALR(k) parser generator
funflow-nix library, program and test: Utility functions for using funflow with nix
fx library: Horizontally composable effects
game-of-life program and test: Conway's Game of Life
generic-enum library and test: An Enum class that fixes some deficiences with Prelude's Enum
generic-enumeration library: Generically derived enumerations.
generic-lucid-scaffold library: General-purpose web page scaffold for Lucid.
genvalidity-mergeful library, test and benchmark
genvalidity-mergeless library, test and benchmark
gh-labeler program: Github Standard Labeler
ghc-server library: None
git-freq program and test: A Git subcommand to show total addition, deletion per file
gitdo program: Create Github issues out of TODO comments in code
google-drive library and test: Google Drive API access
google-oauth2 library and test: Google OAuth2 token negotiation
gotta-go-fast program: A command line utility for practicing typing
Grafos library: Grafos Haskell
graphmod-plugin library and program: A reimplementation of graphmod as a source plugin
gravatar library and test: Generate Gravatar image URLs
ham library, program and test
happs-hsp library
hascard library, program and test: A TUI for reviewing notes using 'flashcards' written with markdown-like syntax.
hask-home programs: Generate homepages for cabal packages
haskell-course-preludes library: ...
haskus-utils-types library and test: Haskus types utility modules
hasql-dynamic-statements library and test: Toolkit for constructing Hasql statements dynamically
hasql-implicits library: Implicit definitions for Hasql, such as default codecs for standard types
haxr-th library: Automatic deriving of XML-RPC structs for Haskell records.
hercules-ci-api library and program: Hercules CI API definition with Servant
hercules-ci-cli library, program and test: The hci command for working with Hercules CI
heroku-persistent library and test: Parse DATABASE_URL into configuration types for Persistent
hexpat-conduit library
hexpat-streamparser library and test
hipsql-api library
hipsql-client library and program
hipsql-monad library
hipsql-server library and program
hmarkup library: Simple wikitext-like markup format implementation.
Hmpf program: An MPD client designed for a Home Theatre PC
hnop program
holey-format library: None
homura-stopwatch library and program
hoodle library and program: Executable for hoodle
hoodle-core library: Core library for hoodle
hoodle-extra programs: extra hoodle tools
hoodle-publish library and program: publish hoodle files as a static web site
hs-conllu library and program: Conllu validating parser and utils.
hs-ix library: Indexed applicative functors and monads
hs-profunctors library: Profunctors from Haskell to Haskell
hs-re library: Easy to use Regex
hsbencher-codespeed library: Backend for uploading benchmark data to CodeSpeed
hsbencher-fusion library and programs: Backend for uploading benchmark data to Google Fusion Tables.
hsConfigure library: By using this package, you can make application configurable.
http-response-decoder library: Declarative DSL for parsing an HTTP response
huzzy library: Fuzzy logic library with support for T1, IT2, GT2.
hworker library and test: A reliable at-least-once job queue built on top of redis.
hxournal library and program: A pen notetaking program written in haskell
ihaskell-widgets library: IPython standard widgets for IHaskell.
infernu library and programs: Type inference and checker for JavaScript (experimental)
infinity program
integer-simple library: Simple Integer library
ircbouncer library: None
ispositive library and test: Positive integers test.
ival library and test: Intervals
ix library, test and benchmark: Indexed monads
json-ast library: Universal JSON AST datastructure
json-ast-json-encoder library: Encoders of JSON AST
json-ast-quickcheck library: Compatibility layer for "json-ast" and "QuickCheck"
json-pointer-aeson library: Integration layer for "json-pointer" and "aeson"
json-to-haskell library, program and test
key library: Type-safe unconstrained dynamic typing
key-vault library: Store of values of arbitrary types
keycloak-hs library and program
kibro library: None
kmonad library and program: Advanced keyboard remapping utility
labsat library, program and test: LabSat TCP Interface Wrapper
laika library and program: Minimalistic type-checked compile-time template engine
LambdaINet program: Graphical Interaction Net Evaluator for Optimal Evaluation
lazy-io-streams library: Get lazy with your io-streams
lens-csv library and test
lhslatex program: Tool for using pdflatex with .lhs files
lifetimes library and test: Flexible manual resource management
lift-read-show library: Helper methods to define `Read1`, `Read2`, `Show1`, `Show2` instances
lift-type library and test: Lift a type from a Typeable constraint to a Template Haskell type
ll-picosat library
load-balancing library: Client-side load balancing utilities.
locked-poll library, program and test: Very simple poll lock
logging-effect library and benchmark: A mtl-style monad transformer for general purpose & compositional logging
looper library and test
loopy program: Find all biological feedback loops within an ecosystem graph.
LRU library: Implements an LRU data structure
lsystem program: Paint an L-System Grammar
lucid-foundation library and test: Basic Zurb Foundation API in Lucid
macaroon-shop library and test: A toolkit for working with macaroons
matcher library: A composable abstraction for checking or converting a context value
membership library: Indices for type level lists
mergeful library
mergeful-persistent library and test: Support for using mergeful from persistent-based databases
mergeless library
mergeless-persistent library and test: Support for using mergeless from persistent-based databases
metaplug library: a tiny ghc api wrapper
MissingH library and test: Large utility library
MissingPy library: Haskell interface to Python
mixpanel-client library and tests: Mixpanel client
monad-classes-logging library and test: monad-classes based typeclass for Ollie's logging-effect LoggingT
monad-var library: Generic operations over variables
monadoid library: A monoid for monads
msu program: Monitor Setup Utility
MTGBuilder program: Builds decks out of a meta
mud library, program and test: Multi-version deployer for web applications
multipool-postgresql-simple library and test
music-util program: Utility for developing the Music Suite.
myTestlll library and test: None
n-tuple library: Homogeneous tuples of arbitrary length.
named-servant library: support records and named (from the named package) parameters in servant
named-servant-client library: client support for named-servant
named-servant-server library: server support for named-servant
nest library and test
network-carbon library: A Haskell implementation of the Carbon protocol (part of the Graphite monitoring tools)
nix-delegate library and program: Convenient utility for distributed Nix builds
non-empty-containers library
notifications-tray-icon library and program
nums library: None
ObjectIO library
ocap-io library and test: Object capability based IO
odbc library, program, test and benchmark: Haskell binding to the ODBC API, aimed at SQL Server driver
om-doh library: om-doh
om-fail library: Monad transformer providing MonadFail.
opentracing library: OpenTracing for Haskell
opentracing-http-client library: OpenTracing instrumentation of http-client
opentracing-jaeger library: Jaeger backend for OpenTracing
opentracing-wai library: Middleware adding OpenTracing tracing for WAI applications
opentracing-zipkin-common library: Zipkin OpenTracing Backend Commons
opentracing-zipkin-v1 library: Zipkin V1 backend for OpenTracing
opentracing-zipkin-v2 library: Zipkin V2 backend for OpenTracing
orgstat library, programs and test: Statistics visualizer for org-mode
orion-hs library
packed library, test and benchmark
packedstring library: (Deprecated) Packed Strings.
padKONTROL library: Controlling padKONTROL native mode
parallel-tasks library
parsedate library: Data and time parsing for CalendarTime
paymill library and test: This is an unofficial client for the Paymill API
pcapng library, program and test
penrose library, program and test: Create beautiful diagrams just by typing mathematical notation in plain text.
pickle library: Instant StatsD in Haskell
pointfree library, program and test: Tool for refactoring expressions into pointfree form
pointfree-fancy library, program and test: Tool for refactoring expressions into pointfree form
port-utils library and test: Utilities for creating and waiting on ports
positive library: Positive integers.
postgresql-common library and test: Library for sharing common PostgreSQL types across Haskell PostgreSQL libraries.
postgresql-common-persistent library and test: Persistent compatibility for postgresql-common
postgresql-simple-sop library: Generic functions for postgresql-simple
primitive-indexed library and test
progressive program: Multilabel classification model which learns sequentially (online).
prometheus-effect library, program, test and benchmark: Instrument applications with metrics and publish/push to Prometheus
Proper library and programs: An implementation of propositional logic in Haskell
proto-lens-runtime library
proto-lens-setup library: Cabal support for codegen with proto-lens.
proton library
pseudo-trie library: A tagged rose-tree with short circuited unique leaves
ptr-poker library, test and benchmark: Pointer poking action construction and composition toolkit
pushbullet library and test: Simple push support for pushbullet
qq-literals library and test: Compile-time checked literal values via QuasiQuoters.
quickcheck-combinators library
quickselect library, tests and benchmark
quipper-core library: An embedded, scalable functional programming language for quantum computing.
quipper-rendering library: An embedded, scalable functional programming language for quantum computing.
r3x-haskell-sdk library, program and test
rdtsc library: Binding for the rdtsc machine instruction
read-ctags library, program and test
rebase library: A more progressive alternative to the "base" package
refh program: A command-line tool for pasting to https://www.refheap.com
reflex-dom-pandoc library: Render Pandoc documents to HTML using reflex-dom
reg-alloc library: Register allocation API
reg-alloc-graph-color library, test and benchmark: Register allocation by graph colorization
reg-alloc-types library: Types used in register allocation API
replica library and test
rerebase library: Reexports from "base" with a bunch of other standard libraries
rgb-color-model library: Haskell types for working with RGB colors
risc-v library, test and benchmark: RISC-V
rivet program: A project management tool for Haskell applications.
rivet-migration library: Postgresql migration support for project management tool.
rivet-simple-deploy library: Basic deployment support for project management tool.
rlist library: Lists with cheap snocs
rollbar-cli library, program and test: Simple CLI tool to perform commons tasks such as tracking deploys.
rollbar-client library, program and test: Core library to communicate with Rollbar API.
rollbar-wai library, program and test: Provides error reporting capabilities to WAI based applications through Rollbar API.
rollbar-yesod library, program and test: Provides error reporting capabilities to Yesod applications through Rollbar API.
row library, test and benchmark: Row types
rv library, test and benchmark: RISC-V
Safe library: Library for safe (pattern match free) functions
safe library and test: Library of safe (exception free) functions
safe-foldable library: Safe wrappers for null-partial Foldable operations
satchmo-minisat library: minisat driver as backend for satchmo
SDL library: Binding to libSDL
SDL-gfx library: Binding to libSDL_gfx
SDL-image library: Binding to libSDL_image
SDL-mixer library: Binding to libSDL_mixer
SDL-mpeg library: Binding to the SMPEG library
SDL-ttf library: Binding to libSDL_ttf
SDL2-ttf library: Binding to libSDL-ttf
selfrestart library: Restarts the current executable (on binary change)
semver-range library and test: An implementation of semver and semantic version ranges.
sensenet program: Distributed sensor network for the raspberry pi
senza library: None
SeqAlign library: Sequence Alignment
servant-db library: Servant types for defining API with relational DBs
servant-streaming library and test: Servant combinators for the 'streaming' package
servant-streaming-client library and test: Client instances for the 'servant-streaming' package.
servant-streaming-docs library: Client instances for the 'servant-docs' package.
servant-streaming-server library and test: Server instances for the 'servant-streaming' package.
servant-tracing library, program and test
set-with library and test: Set of elements sorted by a different data type.
setdown program: Treating files as sets to perform rapid set manipulation.
shared-memory library and test: POSIX shared memory
Shrub library: 4-way trie fuzzy search
simplelru library, program and test
slack-progressbar library, program and test
slate library, program and test: A note taking CLI tool.
smerdyakov library and tests
smt library, test and benchmark: Interface to Satisfiability Modulo Theories solvers
snap-app library: None
socket-io library
solr library: A minimal Solr client library
sparser library: Lightweight parsing library based on partial functions.
Sprig library: Binding to Sprig
sr-extra library: Module limbo
stack-tag library and program: Create etags for Haskell projects based on Stack snapshots
stash library: To be written
streaming-base64 library and test: Streaming conversion from/to base64
streaming-events library: Client-side consumption of a ServerEvent.
streaming-histogram library, test and benchmark
strelka-core library: Core components of "strelka"
strelka-wai library: WAI compatibility layer for "strelka"
strict-list library and test: Strict linked list
strict-types library: A type level predicate ranging over strict types
strictify program: Find a local optimum of strictness annotations.
string library: None
tabs library and program: Indents source files
testPkg program: Small test package
texts library: None
Theora library
throttle library: None
timberc program: The Timber Compiler.
timemap library, test and benchmarks
tmapmvar library and test: A single-entity stateful Map in STM, similar to tmapchan
token-search library, program and test
toml library
total-alternative library: Alternative interface for total versions of partial function on the Prelude.
trade-journal library, program and test
trek library and test
trek-lens library and test
twentefp-eventloop-trees library: ...
twentefp-rosetree library: RoseTree type and show functions for lab assignment of University of Twente.
twentefp-trees library: ...
type-errors library and test: Tools for writing better type errors
type-int library: Type Level 2s- and 16s- Complement Integers
type-sets library and test: Type-level sets
unbounded-delays-units library: Thread delays and timeouts using proper time units
uncaught-exception library and program: Customize uncaught exception handling.
unfoldable-restricted library: An alternative to the Unfoldable typeclass
unicode-symbols library: Unicode alternatives for common functions and operators
uniquely-represented-sets library, test and benchmark
unit-constraint library: Extremely simple typeclass
universal library, test and benchmark: Universal
update-monad library
usa-holidays library and tests
Useful library: Some useful functions and shorthands.
util-primitive library: Primitive memory-related utilities
util-primitive-control library and test: Utilities for stateful primitive types and types based on them
util-universe library and test: Utilities for universal types
valid library: Type isomorphic to `Either` with `Applicative` instance which combines errors
validate library: None
verdict library, program and test: Validation framework
verdict-json library, program and test: JSON instances and JSON Schema for verdict
vicinity library and tests
wai-transformers library
webkit-javascriptcore library: JavaScriptCore FFI from webkitgtk
webkit2gtk3-javascriptcore library: JavaScriptCore FFI from webkitgtk
webkitgtk3-javascriptcore library: JavaScriptCore FFI from webkitgtk
websockets-simple-extra library
wholepixels library
word2vec-model library, programs and test: Reading word2vec binary models
wordcloud library: None
xkcd program: Downloads the most recent xkcd comic.
xmonad-dbus library, program and test
xournal-convert library and program: convert utility for xoj files
xrefcheck library, program and test
xslt library: Binding to libxslt
yaml-unscrambler library and test: Flexible declarative YAML parsing toolkit
yamlparse-applicative library: Declaritive configuration parsing with free docs
yesod-page-cursor library and test
yesod-static-remote library and test
yjtools library: some tools for Monad, List, Tuple and so on.
zenhack-prelude library: @zenhack's personal custom prelude
Zora library and test: Graphing library wrapper + assorted useful functions