All packages

A browsable index of all the packages
3d-graphics-examples530.0Examples of 3D graphics programming with OpenGL (bsd3, fractals, graphics, program)WolfgangJeltsch
3dmodels150.03D model parsers (graphics, lgpl, library)capsjac
4Blocks270.0A tetris-like game (works with GHC 6.8.3 and Gtk2hs 0.9.13) (bsd3, game, program)AndrewCalleja
AAI300.0Abstract Application Interface. (control, library, mit)bash0r
ABList330.0An alternating list of two types (bsd3, data, library)DylanJust
AC-Angle210.0Angles in degrees and radians. (bsd3, data, library, math, numerical)AndrewCoppin
AC-Boolean260.0Handle Boolean values generatically. (bsd3, data, library, logic, math)AndrewCoppin
AC-BuildPlatform240.0Detect which OS you're running on. (bsd3, library, system)AndrewCoppin
AC-Colour550.0Efficient RGB colour types. (bsd3, data, graphics, library, math, numerical)AndrewCoppin
AC-EasyRaster-GTK270.0GTK+ pixel plotting. (bsd3, graphics, library)AndrewCoppin
AC-HalfInteger170.0Efficient half-integer type. (bsd3, data, library, math, numerical)AndrewCoppin
AC-MiniTest120.0A simple test framework. (bsd3, library, testing)AndrewCoppin
AC-PPM120.0Trivial package for writing PPM images. (bsd3, codec, graphics, library)AndrewCoppin
AC-Random120.0A pure Haskell PRNG. (bsd3, library, random)AndrewCoppin
AC-Terminal110.0Trivial wrapper over ansi-terminal. (bsd3, data, library, math, numerical)AndrewCoppin
AC-VanillaArray100.0Immutable arrays with plain integer indicies. (bsd3, data, library)AndrewCoppin
AC-Vector350.0Efficient geometric vectors and transformations. (bsd3, data, graphics, library, math, numerical)AndrewCoppin
AC-Vector-Fancy150.0Fancy type-system stuff for AC-Vector (bsd3, data, graphics, library, math, numerical)AndrewCoppin
ACME82.25Essential features (acme, bsd3, library)JamesCandy
ADPfusion350.0Efficient, high-level dynamic programming. (algorithms, bioinformatics, bsd3, data-structures, formal-languages, library)ChristianHoener
ADPfusionSet90.0Dynamic programming for Set data structures. (algorithms, bioinformatics, bsd3, data-structures, formal-languages, library)ChristianHoener
AERN-Basics20.0foundational type classes for approximating exact real numbers (bsd3, data, library, math, program)MichalKonecny
AERN-Net60.0Compositional lazy dataflow networks for exact real number computation (bsd3, distributed-computing, library, math)MichalKonecny
AERN-Real280.0arbitrary precision real interval arithmetic (bsd3, data, library, math)MichalKonecny
AERN-Real-Double30.0arbitrary precision real interval arithmetic (bsd3, data, library, math, program)MichalKonecny
AERN-Real-Interval30.0arbitrary precision real interval arithmetic (bsd3, data, library, math)MichalKonecny
AERN-RnToRm140.0polynomial function enclosures (PFEs) approximating exact real functions (bsd3, data, library, math)MichalKonecny
AERN-RnToRm-Plot80.0GL plotting of polynomial function enclosures (PFEs) (bsd3, data, library, math)MichalKonecny
AES390.0Fast AES encryption/decryption for bytestrings (bsd3, cryptography, library)SveinOveAas
AFSM172.0Arrowized functional state machines (frp, library, mit)hanzhxu
AGI160.0A library for writing AGI scripts for Asterisk (bsd3, library, network)JeremyShaw
ALUT770.0A binding for the OpenAL Utility Toolkit (bsd3, library, sound)StephenBlackheath, SvenPanne
AMI90.0Low-level bindings for Asterisk Manager Interface (AMI). (bsd3, library, network)IlyaPortnov
ANum80.0Num instance for Applicatives provided via the ANum newtype (bsd3, data, library)DanBurton
ASN1 (deprecated)30.0ASN.1 support for Haskell (bsd3, deprecated, language, library)DominicSteinitz
AVar (deprecated)140.0Mutable variables with Exception handling and concurrency support. (bsd3, concurrency, deprecated, library)AlexMason
AWin32Console10.0A binding to a part of the ANSI escape code for the console (bsd3, library, system)HaraldWolfsgruber
AbortT-monadstf20.0Monads-tf instances for the AbortT monad transformer. (bsd3, control, library)GregoryCrosswhite
AbortT-mtl30.0mtl instances for the AbortT monad transformer (bsd3, control, library)GregoryCrosswhite
AbortT-transformers110.0A monad and monadic transformer providing "abort" functionality (bsd3, control, library)GregoryCrosswhite
ActionKid30.0An easy-to-use video game framework for Haskell. (bsd3, game-engine, library, program)AdityaBhargava
Adaptive60.0Library for incremental computing. (algorithms, bsd3, library, program)DustinDeWeese, MagnusCarlsson, PeterJonsson
Adaptive-Blaisorblade70.0Library for incremental computing. (bsd3, control, library, program)PaoloGiarrusso
Advgame40.0Lisperati's adventure game in Lisp translated to Haskell (bsd3, game, program)TimWawrzynczak
AesonBson60.0Mapping between Aeson's JSON and Bson objects. (data, library)AndrasSlemmer, NiklasHambuechen
Agata (deprecated in favor of testing-feat)70.0Generator-generator for QuickCheck (bsd3, deprecated, library, testing)JonasDuregard
Agda4092.5A dependently typed functional programming language and proof assistant (dependent-types, library, program)AndreasAbel, AndresSicardRamirez, NilsAndersDanielsson, UlfNorell
Agda-executable (deprecated in favor of Agda)110.0Command-line program for type-checking and compiling Agda programs (dependent-types, deprecated, program)NilsAndersDanielsson, UlfNorell
AhoCorasick80.0Aho-Corasick string matching algorithm (bsd3, library, text)SergeyLymar
AlanDeniseEricLauren40.0Find the minimal subset/submap satisfying some property. (algorithms, benchmark, bsd3, library)EchoNolan
AlgorithmW90.0Example implementation of Algorithm W for Hindley-Milner type inference. (bsd3, development, program)MartinGrabmueller
AlignmentAlgorithms100.0Collection of alignment algorithms (algorithms, bioinformatics, data-structures, gpl, library, linguistics)ChristianHoener
Allure602.0Near-future Sci-Fi roguelike and tactical squad game (agpl, game, program, roguelike)MikolajKonarski
AndroidViewHierarchyImporter30.0Android view hierarchy importer (bsd3, development, program)alpheccar
Animas70.0Updated version of Yampa: a library for programming hybrid systems. (bsd3, frp, library, reactivity)EdwardAmsden
Annotations120.0Constructing, analyzing and destructing annotated trees (bsd3, generics, library)MartijnVanSteenbergen
Ansi2Html100.0Convert ANSI Terminal Sequences to nice HTML markup (bsd3, program, web)JensStimpfle
ApplePush20.0Library for Apple Push Notification Service (bsd3, library, network, program)ChrisMoos
AppleScript120.0Call AppleScript from Haskell, and then call back into Haskell. (bsd3, foreign)ReinerPope, WouterSwierstra
ApproxFun-hs10.0Function approximation (bsd3, library, math)DominicSteinitz
ArrayRef110.0Unboxed references, dynamic arrays and more (bsd3, data, library)GwernBranwen
ArrowVHDL20.0A library to generate Netlist code from Arrow descriptions. (library, public-domain, testing)frosch03, brettschneider
AspectAG220.0Attribute Grammars in the form of an EDSL (development, lgpl, library)MarcosViera
AttoBencode120.0Fast Bencode encoding and parsing library (bsd3, data, library)FlorianHartwig
AttoJson (deprecated in favor of aeson)160.0Simple lightweight JSON parser, generator & manipulator based on ByteString (bsd3, deprecated, library, text)HiromiIshii
Attrac40.0Visualisation of Strange Attractors in 3-Dimensions (bsd3, graphics, program)RubenZilibowitz
Aurochs70.0Yet another parser generator for C/C++ (bsd3, development, program)XinyuJiang
AutoForms50.0GUI library based upon generic programming (SYB3) (gui, lgpl, library)MadsLindstroem
AvlTree150.0Balanced binary trees using the AVL algorithm. (bsd3, data-structures, library)AdrianHey
BASIC132.0Embedded BASIC (bsd3, language, library)LennartAugustsson
BCMtools70.0Big Contact Map Tools (bioinformatics, library, mit, program)kaizhang
BNFC1210.0A compiler front-end generator. (development, gpl, library, program)AndreasAbel, GregoireDetrez, MarkusForsberg, ThomasHallgren
BNFC-meta250.0Deriving Parsers and Quasi-Quoters from BNF Grammars (development, gpl, library)JeanPhilippeBernardy, JonasDuregard
Baggins10.0Tools for self-assembly (gpl, library, math)pmeunier
Bang90.0A Drum Machine DSL for Haskell (library, mit, sound)5outh
Barracuda20.0An ad-hoc P2P chat program (gpl, library, network, program)GwernBranwen
Befunge9340.0An interpreter for the Befunge-93 Programming Language (bsd3, compilers-interpreters, program)BrandonSimmons
BenchmarkHistory40.0Benchmark functions with history (benchmarking, gpl, library)ChristianHoener
BerkeleyDB330.0Berkeley DB binding (bsd3, database, library)JohnMcCall, StephenBlackheath
BerkeleyDBXML140.0Berkeley DB XML binding (bsd3, database, library)StephenBlackheath
BerlekampAlgorithm10.0Factorization of polynomials over finite field (bsd3, library, math)AbdelwahebMiled
BiGUL162.25The Bidirectional Generic Update Language (generics, language, lenses, library, public-domain)joshko, Zirun
BigPixel90.0Image editor for pixel art (bsd3, development, program)ManuelChakravarty
Binpack330.0Common bin-packing heuristics. (algorithms, bsd3, heuristics, library)BjoernBrandenburg, DavidFeng
BioHMM610.0Libary for Hidden Markov Models in HMMER3 format. (bioinformatics, gpl, library)FlorianEggenhofer
Biobase80.0Base library for bioinformatics (bioinformatics, gpl, library)ChristianHoener
BiobaseBlast420.0BLAST-related tools (bioinformatics, gpl, library)ChristianHoener
BiobaseDotP20.0Vienna / DotBracket / ExtSS parsers (bioinformatics, gpl, library)ChristianHoener
BiobaseFR3D70.0Importer for FR3D resources (bioinformatics, gpl, library)ChristianHoener
BiobaseFasta80.0conduit-based FASTA parser (bioinformatics, gpl, library, program)ChristianHoener
BiobaseInfernal560.0Infernal data structures and tools (benchmark, bioinformatics, gpl, library, program)ChristianHoener
BiobaseMAF20.0Multiple Alignment Format (bioinformatics, gpl, library)ChristianHoener
BiobaseNewick130.0Newick file format parser. (bioinformatics, bsd3, library, program)ChristianHoener
BiobaseTrainingData100.0RNA folding training data (bioinformatics, gpl, library, program)ChristianHoener
BiobaseTurner210.0Import Turner RNA parameters (bioinformatics, gpl, library)ChristianHoener
BiobaseTypes430.0Collection of types for bioinformatics (bioinformatics, bsd3, data-structures, library)ChristianHoener
BiobaseVienna130.0Import Vienna energy parameters (bioinformatics, gpl, library)ChristianHoener
BiobaseXNA720.0Efficient RNA/DNA representations (bioinformatics, gpl, library, program)ChristianHoener
BirdPP30.0A preprocessor for Bird-style Literate Haskell comments with Haddock markup. (development, gpl, program)SeanMcLaughlin
BitStringRandomMonad160.0 (bsd3, crypto, library)Ofenhed
BitSyntax120.0A module to aid in the (de)serialisation of binary data (bsd3, library, serialization)AdamLangley, joecrayne
Bitly (deprecated)100.0A library to access URL shortener. (bsd3, deprecated, library, web)SergeyAstanin
BlastHTTP160.0Libary to interface with the NCBI blast REST interface (bioinformatics, gpl, library)FlorianEggenhofer
Blobs60.0Diagram editor (graphics, lgpl, library, program)AlanZimmerman
BlogLiterately690.0A tool for posting Haskelly articles to blogs (gpl, library, program, web)BrentYorgey, RobertGreayer
BlogLiterately-diagrams340.0Include images in blog posts with inline diagrams code (bsd3, library, program, web)BrentYorgey
Blogdown120.0A markdown-like markup language designed for blog posts (agpl, benchmark, library, program, web)alexbecker
BluePrintCSS (deprecated)60.0Html document layout library. (bsd3, deprecated, library, text, web)SergeyMironov
Blueprint70.0Preview of a new build system. (bsd3, distribution, library)GregoryCrosswhite
Bookshelf190.0A simple document organizer with some wiki functionality (gpl, program, text)EmilAxelsson
Boolean3860.0Generalized booleans and numbers (bsd3, data, library)ConalElliott
BoundedChan800.0Implementation of bounded channels. (bsd3, concurrency, library)AdamWick
Bravo40.0Static text template generation library (bsd3, library, text)MatthiasReisner
BufferedSocket110.0A socker wrapper that makes the IO of sockets much cleaner (library, mit, network)tmore
Buster20.0Hits a set of urls periodically to bust caches (mit, program, web)MichaelXavier
CBOR90.0Encode/Decode values to/from CBOR (data, lgpl, library)KyleMurphy
CC-delcont130.0Delimited continuations and dynamically scoped variables (control, library)DanDoel
CC-delcont-alt60.0Three new monad transformers for multi-prompt delimited control (bsd3, control, library)KidoTakahiro
CC-delcont-cxe80.0A monad transformers for multi-prompt delimited control (bsd3, control, library)KidoTakahiro
CC-delcont-exc50.0A monad transformers for multi-prompt delimited control (bsd3, control, library)KidoTakahiro
CC-delcont-ref70.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)KidoTakahiro
CC-delcont-ref-tf50.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)KidoTakahiro
CCA160.0preprocessor and library for Causal Commutative Arrows (CCA) (bsd3, development, library, program)PaulLiu
CHXHtml130.0A W3C compliant (X)HTML generating library (bsd3, library, web)PaulTalaga
CLASE120.0Cursor Library for A Structured Editor (bsd3, data, library)TristanAllwood
CLI20.0CLI tools (bsd3, data, library)g960059
CMCompare80.0Infernal covariance model comparison (bioinformatics, gpl, library, program)ChristianHoener
CMQ50.0cwmwl udp message queue (bsd3, library, system)JoergFritsch
COrdering100.0An algebraic data type similar to Prelude Ordering. (bsd3, data, library)AdrianHey
CPBrainfuck40.0A simple Brainfuck interpretter. (bsd3, compilers-interpreters, program)ThomasDavie
CPL120.0An interpreter of Hagino's Categorical Programming Language (CPL). (bsd3, compilers-interpreters, program)MasahiroSakai
CSPM-CoreLanguage120.0Definition of a FDR-compatible CSP core-language. (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-FiringRules80.0Firing rules semantic of CSPM (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-Frontend150.0A CSP-M parser compatible with FDR-2.91 (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-Interpreter140.0An interpreter for CSPM (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-ToProlog70.0some modules specific for the ProB tool (bsd3, formal-methods, library)MarcFontaine
CSPM-cspm100.0cspm command line tool for analyzing CSPM specifications. (bsd3, concurrency, formal-methods, language, library, program)MarcFontaine
CTRex70.0Open records using closed type families. (bsd3, data, data-structures, library)AtzeVanDerPloeg
CV190.0OpenCV based machine vision library (ai, gpl, graphics, library, machine-vision)VilleTirronen
Cabal72332.5A framework for packaging Haskell software (bsd3, distribution, library)DuncanCoutts, IanLynagh, JohanTibell, MikhailGlushenkov, ryant
Cabal-ide-backend30.0A framework for packaging Haskell software (bsd3, distribution, library)MichaelSnoyman
CabalSearch20.0Search cabal packages by name (bsd3, program, utils)JohanBrinch
Capabilities30.0Separate and contain effects of IO monad. (bsd3, generics, library, security)BaldurBlondal
Cardinality160.0Measure container capacity. Use it to safely change container. (data, lgpl, library)AndreySisoyev
CarneadesDSL150.0An implementation and DSL for the Carneades argumentation model. (ai, argumentation, bsd3, embedded, library)BasVanGijzel
CarneadesIntoDung30.0A translation from the Carneades argumentation model into Dung's AFs. (ai, argumentation, bsd3, embedded, library, program)BasVanGijzel
Cartesian70.0Coordinate systems (library, math, mit)SwiftsNamesake
Cascade10.0Playing with reified categorical composition (control, library, public-domain)NoahEasterly
Cassava352.0A CSV parsing and encoding library (bsd3, csv, library, text, web)fozworth
Catana90.0A monad for complex manipulation of a stream. (bsd3, control, library)DustinDeWeese
ChannelT200.0Generalized stream processors (bsd3, control, enumerator, iteratee, library, pipes, proxies)pthariensflame
Chart10880.0A library for generating 2D Charts and Plots (bsd3, graphics, library)TimDocker
Chart-cairo520.0Cairo backend for Charts. (bsd3, graphics, library)TimDocker
Chart-diagrams10290.0Diagrams backend for Charts. (bsd3, graphics, library)TimDocker
Chart-gtk420.0Utility functions for using the chart library with GTK (bsd3, graphics, library)TimDocker
Chart-simple (deprecated)90.0A wrapper for the chart library to assist with basic plots (Deprecated - use the Easy module instead) (bsd3, deprecated, graphics, library)TimDocker
ChasingBottoms830.0For testing partial and infinite values. (library, mit, testing)DonaldStewart, NilsAndersDanielsson
CheatSheet420.0A Haskell cheat sheet in PDF and literate formats. (bsd3, help, program)JustinBailey
Checked30.0Inbuilt checking for ultra reliable computing (bsd3, data, library)RobertOnslow
Chitra100.0A platform independent mechanism to render graphics using vnc. (bsd3, graphics, program)KashyapChatamballi
ChristmasTree120.0Alternative approach of 'read' that composes grammars instead of parsers. (lgpl, library, parsing)DoaitseSwierstra, MarcosViera
CirruParser (deprecated in favor of cirru-parser)50.0Cirru Parser in Haskell (deprecated, library, mit, text)jiyinyiyong
ClassLaws60.0Stating and checking laws for type class methods (bsd3, library, testing)PatrikJansson
ClassyPrelude50.0Prelude replacement using classes instead of concrete types where reasonable (bsd3, control, data, library)SveinOveAas
Clean (deprecated in favor of definitive-base)30.0A light, clean and powerful utility library (bsd3, control, deprecated, library)MarcCoiffier
Clipboard260.0System clipboard interface. (bsd3, library, system)DanielDiaz
ClustalParser270.0Libary for parsing Clustal tools output (bioinformatics, gpl, library, program)FlorianEggenhofer
Coadjute (deprecated)30.0A generic build tool (bsd3, deprecated, development, library)MattiNiemenmaa
Codec-Compression-LZF170.0LZF compression bindings. (bsd3, codec, library)DonaldStewart
Codec-Image-DevIL180.0An FFI interface to the DevIL library (bsd3, codecs, library)LukePalmer
Combinatorrent80.0A concurrent bittorrent client (bsd3, network, program)JesperLouisAndersen
Command (deprecated in favor of system-command)130.0A replacement for System.Exit and System.Process (bsd3, deprecated, library, system)TonyMorris
Commando50.0Watch some files; Rerun a command (development, library, mit, program)LyndonMaydwell
ComonadSheet30.0A library for expressing spreadsheet-like computations as the fixed-points of comonads. (bsd3, control, library)kwf
Compactable (deprecated in favor of compactable)140.0A generalization for containers that can be stripped of Nothing (bsd3, control, deprecated, library)fresheyeball
Concurrent-Cache202.0A Cached variable for IO functions. (bsd3, concurrency, library)Ofenhed
ConcurrentUtils100.0Concurrent utilities (concurrency, gpl, library)JamesCandy
Concurrential90.0Mix concurrent and sequential computation (bsd3, control, library)alexvieth
Condor50.0Information retrieval library (bsd3, library, program, search, text)klangner
ConfigFile1160.0Configuration file reading & writing (bsd3, library, parsing)JohnGoerzen
ConfigFileTH60.0Template haskell for reading ConfigFiles. (lgpl, library, parsing, template-haskell)VilleTirronen
Configger20.0Parse config files (configuration, library, mit)NateSoares
Configurable10.0Declare types as Configurable then specialize them all in one place (control, library, mit)JosephAbrahamson
ConsStream20.0Trivial re-export of Wouter Swierstra's Stream package, avoiding module name clash. (bsd3, data, library)ConalElliott
Conscript20.0Restart a command on STDIN activity (mit, program, system)LyndonMaydwell
ConstraintKinds90.0Repackages standard type classes with the ConstraintKinds extension (bsd3, control, library)MikeIzbicki
Consumer70.0A monad and monad transformer for consuming streams (bsd3, library, monads)JeremyShaw
ContArrow50.0Control.Arrow.Transformer.Cont (bsd3, control, library)EvgenyJukov
ContextAlgebra70.0Implementation of the context algebra. (bsd3, math, program)jhahn
Contract100.0Practical typed lazy contracts. (bsd3, development, library)OlafChitil
Control-Engine (deprecated)150.0A parallel producer/consumer engine (thread pool) (bsd3, control, deprecated, library)ThomasDuBuisson
Control-Monad-MultiPass20.0A Library for Writing Multi-Pass Algorithms. (bsd3, control, library)KevinBackhouse
Control-Monad-ST260.0A variation on the ST monad with two type parameters. (bsd3, control, library)KevinBackhouse
CoreDump50.0A GHC plugin for printing GHC's internal Core data structures. (bsd3, ghc, library)OmerAgacan
CoreErlang30.0Manipulating Core Erlang source code (bsd3, language, library)AlexKropivny, HenriqueFerreiro
CoreFoundation10.0Bindings to Mac OSX's CoreFoundation framework (bsd3, library, system)ReinerPope
Coroutine70.0Type-safe coroutines using lightweight session types. (bsd3, control, library)RyanIngram
CouchDB220.0CouchDB interface (bsd3, database, library)GaneshSittampalam, SimonMichael
Craft3e390.0Code for Haskell: the Craft of Functional Programming, 3rd ed. (education, library, mit, program)SimonThompson
Crypto680.0Collects together existing Haskell cryptographic functions into a package (codec, cryptography, library, program)CreightonHogg, DominicSteinitz, IsaacJones, LennartAugustsson
CurryDB50.0CurryDB: In-memory Key/Value Database (benchmark, bsd3, database, library, program)HideyukiTanaka
DAG-Tournament70.0Real-Time Game Tournament Evaluator (game, gpl, program)JoachimBreitner
DAV1880.0RFC 4918 WebDAV support (gpl, library, program, web)ClintAdams
DBlimited30.0A command-line SQL interface for flat files (tdf,csv,etc.) (bsd3, database, program)JohnMayer
DBus150.0D-Bus bindings (bsd3, desktop, library, network)AlexanderKojevnikov, DavidHimmelstrup, GwernBranwen
DCFL140.0Communication Free Learning-based constraint solver (data, library, mit)dpandya
DMuCheck40.0Distributed Mutation Analysis framework for MuCheck (gpl, program, testing)RahulGopinath
DOH132.0Complete API bindings for DigitalOcean API V2 (library, mit, network)yigitozkavci
DOM40.0DOM Level 2 bindings for the WebBits package. (bsd3, library, web)DmitryGolubovsky
DP40.0Pragmatic framework for dynamic programming (algorithms, bsd3, library, math, natural-language-processing)SashaRush
DPM60.0Darcs Patch Manager (development, gpl, library, program)StefanWehr
DPutils410.0utilities for DP (benchmark, bsd3, data, library)ChristianHoener
DRBG800.0Deterministic random bit generator (aka RNG, PRNG) based HMACs, Hashes, and Ciphers. (bsd3, cryptography, library)ThomasDuBuisson
DSA160.0Implementation of DSA, based on the description of FIPS 186-4 (bsd3, codec, cryptography, library)AdamWick
DSH480.0Database Supported Haskell (bsd3, database, library, program)GeorgeGiorgidze, JeroenWeijers, AlexUlrich, AlexUlrich2
DSTM40.0A framework for using STM within distributed systems (distributed-computing, lgpl, library, program)FrankKupke
DTC120.0Data To Class transformation. (bsd3, language, library)DanielDiaz
Dangerous120.0Monads for operations that can exit early and produce warnings (error-handling, library, mit)NateSoares
Dao40.0Dao is meta programming language with its own built-in interpreted language, designed with artificial intelligence applications in mind. (gpl, library, program, unclassified)RaminHonary
DarcsHelpers10.0Code used by Patch-Shack that seemed sensible to open for reusability (gpl, library, web)ThomasHartman
Data-Angle100.0Geometric angles (bsd3, data, library, math)deadmanswitch
Data-Hash-Consistent70.0Provide a simple consistent hashing mechanism (bsd3, data, library)BradClawsie
Data-Rope (deprecated in favor of data-rope)90.0Ropes, an alternative to (Byte)Strings. (data, deprecated, gpl, library)PierreEtienneMeunier
DataIndex110.0A package for adding index column to data files (benchmark, data, library, mit, program)steven_yhw
DataTreeView70.0A GTK widget for displaying arbitrary Data.Data.Data instances (bsd3, debug, development, gui, library)DanielSchuessler
Deadpan-DDP260.0Write clients for Meteor's DDP Protocol (library, mit, program, unclassified)LyndonMaydwell
DebugTraceHelpers80.0Convenience functions and instances for Debug.Trace (debug, gpl, library)ThomasHartman
Decimal850.0Decimal numbers with variable precision (bsd3, library, math)PaulJohnson
DecisionTree300.0A very simple implementation of decision trees for discrete attributes. (algorithms, lgpl, library, pattern-classification)AdrianNeumann
DeepArrow160.0Arrows for "deep application" (bsd3, combinators, control, library)ConalElliott
DeepDarkFantasy550.0A DSL for creating neural network. (apache, dsl, library)MarisaVeryMoe
DefendTheKing70.0A simple RTS game (frp, game, gpl, program)YairChuchem
Delta-Lambda50.0A demonstration interpreter for type system delta-lambda (of N.G. De-bruijn) (compilers-interpreters, mit, program)listofoptions
DescriptiveKeys70.0A library for specifying xmonad key bindings with functionality. (bsd3, library, system)TonyMorris
Dflow60.0Processing Real-time event streams (bsd3, library, reactivity)PaulJohnson
Diff12680.0O(ND) diff algorithm in haskell. (algorithms, bsd3, library)SterlingClover
DifferenceLogic40.0A theory solver for conjunctions of literals in difference logic (bsd3, library, math)dillonhuff
DifferentialEvolution50.0Global optimization using Differential Evolution (algorithms, library, mit, numerical, optimization)VilleTirronen
Digit (deprecated in favor of digit)80.0A data-type representing digits 0-9 (bsd3, data, deprecated, library)TonyMorris
DigitalOcean30.0A client library for the DigitalOcean API (agpl, library, network)lclarkmichalek
DimensionalHash130.0An n-dimensional hash using Morton numbers. (algorithms, bsd3, data, library)GhassenHamrouni
DirectSound40.0Partial binding to the Microsoft DirectSound API. (bsd3, library, sound)BalazsKomuves
DisTract20.0Distributed Bug Tracking System (bsd3, library, program, system)GwernBranwen
DiscussionSupportSystem20.0Discussion support system (gpl, library, system)minamiyama1994
Dish70.0Hash modules (currently Murmur3) (bsd3, data, library, program)zcourts
Dist590.0A Haskell library for probability distributions (library, math, mit)wyager
DistanceTransform60.0Distance transform function. (bsd3, library, math)AnthonyCowley
DistanceUnits70.0A comprehensive distance library (bsd3, data, library)MattGambogi
DnaProteinAlignment10.0Frameshift-aware alignment of protein sequences with DNA sequences (bioinformatics, gpl, library, program)ChristianHoener
DocTest (deprecated in favor of doctest)140.0Test interactive Haskell examples (deprecated, mit, program, testing)
Docs50.0Documentation types library. (bsd3, documentation, library)DanielDiaz
DrHylo40.0A tool for deriving hylomorphisms (bsd3, language, library, program)HugoPacheco
DrIFT320.0Program to derive type class instances (bsd3, data-structures, library, program)KiwamuOkabe
DrIFT-cabalized (deprecated in favor of DrIFT)100.0Program to derive type class instances (bsd3, data-structures, deprecated, program)GwernBranwen, KiwamuOkabe
Dung110.0An implementation of the Dung argumentation frameworks. (ai, argumentation, bsd3, embedded, library, program)BasVanGijzel
Dust100.0Polymorphic protocol engine (gpl, library, network)BrandonWiley
Dust-crypto30.0Cryptographic operations (cryptography, gpl, library)BrandonWiley
Dust-tools110.0Network filtering exploration tools (gpl, library, network, program)BrandonWiley
Dust-tools-pcap50.0Network filtering exploration tools that rely on pcap (gpl, network, program)BrandonWiley
DynamicTimeWarp20.0Dynamic time warping of sequences. (data, lgpl, library, program)zombiecalypse
DysFRP50.0dysFunctional Reactive Programming (bsd3, frp, library)MarekMaterzok
DysFRP-Cairo40.0dysFunctional Reactive Programming on Cairo (bsd3, frp, library)MarekMaterzok
DysFRP-Craftwerk10.0dysFunctional Reactive Programming on Craftwerk (bsd3, frp, library)MarekMaterzok
EEConfig60.0ExtremlyEasyConfig - Extremly Simple parser for config files (bsd3, library, parsing)BartoszWojcik
Earley790.0Parsing all context-free grammars using Earley's algorithm. (benchmark, bsd3, library, parsing)OlleFredriksson, phadej
Ebnf2ps160.0Peter's Syntax Diagram Drawing Tool (bsd3, language, program)PeterThiemann, FranklinChen
EdisonAPI8020.0A library of efficient, purely-functional data structures (API) (data-structures, library, mit)RobertDockins
EdisonCore7970.0A library of efficent, purely-functional data structures (Core Implementations) (data-structures, library)RobertDockins
EditTimeReport10.0Query language and report generator for edit logs. (gpl, program, utils)BartSpaans
EitherT (deprecated in favor of either)40.0EitherT monad transformer (bsd3, control, deprecated, library)EyalLotem
Elm (deprecated in favor of elm-compiler)720.0The Elm language module. (bsd3, compiler, deprecated, language, library, program)EvanCzaplicki
Emping150.0derives heuristic rules from nominal data (data-mining, gpl, program)HansVanThiel
Empty110.0A type class for empty containers (bsd3, control, library)fresheyeball
Encode190.0Encoding character data (codec, gpl, library, program, text)OtakarSmrz
EntrezHTTP250.0Libary to interface with the NCBI Entrez REST service. (bioinformatics, gpl, library)FlorianEggenhofer
EnumContainers30.0Simple Enum-class-based int containers (bsd3, data, library)EyalLotem
EnumMap30.0More general IntMap replacement. (bsd3, data-structures, library)JohnVanEnk
Eq (deprecated)120.0Render math formula in ASCII, and perform some simplifications (bsd3, deprecated, language, math, program)VincentBerthoux
EqualitySolver50.0A theory solver for conjunctions of literals in the theory of uninterpreted functions with equality (bsd3, library, math)dillonhuff
EsounD20.0Type-safe bindings to EsounD (ESD; Enlightened Sound Daemon) (library, public-domain, sound)MasatakeDaimon
EstProgress70.0Methods for estimating the progress of functions (bsd3, data, library)JamesCandy
EtaMOO110.0A new implementation of the LambdaMOO server (bsd3, network, program)RobLeslie
Etage250.0A general data-flow framework (ai, control, lgpl, library)MitarMilutinovic
Etage-Graph110.0Data-flow based graph algorithms (data-structures, lgpl, library, program)MitarMilutinovic
Eternal10Seconds40.0A 2-D shooting game (bsd3, game, program)HirotoKoyama
Etherbunny30.0A network analysis toolkit for Haskell (gpl, library, network, program)NicholasBurlett
EuroIT50.0Library for using euro currency, italian language (bsd3, data, library)PaoloVeronelli
Euterpea542.0Library for computer music research and education (bsd3, library, sound)dwincort, DonyaQuick
EventSocket20.0Interfaces with FreeSwitch Event Socket. (bsd3, library, network)DavidAustin
Extra (deprecated in favor of sr-extra, extra)150.0A grab bag of modules. (bsd3, deprecated, library, unclassified)DavidFox, JeremyShaw
FComp50.0Compose music (gpl, library, music, program)JosePedroMagalhaes
FM-SBLEX30.0A set of computational morphology tools for Swedish diachronic lexicons. (gpl, natural-language-processing, program)MarkusForsberg
FModExRaw (deprecated)100.0The Haskell FModEx raw API. (deprecated, gpl, library, sound)DimitriSabadie
FPretty290.0Efficient simple pretty printing combinators (bsd3, library, text.prettyprint)OlafChitil
FTGL210.0Portable TrueType font rendering for OpenGL using the Freetype2 library (bsd3, graphics, library)JeffersonHeard, laquendi
FTGL-bytestring50.0Portable TrueType font rendering for OpenGL using the Freetype2 library (bsd3, graphics, library)seagull
FTPLine130.0A command-line FTP client. (bsd3, network, program)DanielDiaz
Facts50.0A collection of facts about the real world. (bsd3, factual, library)AlexanderSolla
FailureT (deprecated in favor of transformers)20.0Failure Monad Transformer (control, deprecated, failure, library, public-domain)MatthewFarkasDyck
FastPush170.0A monad and monad transformer for pushing things onto a stack very fast. (bsd3, control, library)wyager
FastxPipe (deprecated in favor of pipes-fastx)30.0Fasta and Fastq streaming (bsd3, deprecated, library, unclassified)rcallahan
FenwickTree80.0Data structure for fast query and update of cumulative sums (bsd3, data-structures, library)MichalGajda
FermatsLastMargin20.0Annotate ps and pdf documents (gpl, program, web)GwernBranwen
FerryCore100.0Ferry Core Components (bsd3, database, library)JeroenWeijers
Feval42.0Evaluation using F-Algebras (language, mit, program)burz
FieldTrip140.0Functional 3D (bsd3, graphics, library)ConalElliott
FileManip (deprecated in favor of filemanip)140.0Expressive file and directory manipulation for Haskell. (bsd3, deprecated, library, system)BryanOSullivan
FileManipCompat160.0Expressive file and directory manipulation for Haskell. (bsd3, library, system)ThomasHartman
FilePather (deprecated in favor of filepather)180.0Functions on System.FilePath (bsd3, deprecated, library, system)TonyMorris
FileSystem40.0File system data structure and monad transformer. (bsd3, library, system)DanielDiaz
Files90.0File content extraction/rearrangement (io, library, mit, program)steven_yhw
Finance-Quote-Yahoo170.0Obtain quote data from (bsd3, library, web)BradClawsie
Finance-Treasury60.0Obtain Treasury yield curve data (bsd3, library, web)DonaldStewart, StephenLihn
FindBin370.0Locate directory of original program (bsd3, library, system)AudreyTang
FiniteMap (deprecated in favor of containers)30.0A finite map implementation, derived from the paper: Efficient sets: a balancing act, S. Adams, Journal of functional programming 3(4) Oct 1993, pp553-562 (bsd4, data, deprecated, library)PepeIborra
FirstOrderTheory20.0Grammar and typeclass for first order theories (bsd3, library, math)dillonhuff
FixedPoint-simple230.0Fixed point, large word, and large int numerical representations (types and common class instances) (bsd3, data, library)ThomasDuBuisson
Flippi40.0Wiki (bsd3, program, text)AudreyTang, GwernBranwen
FloatingHex2930.0Read and write hexadecimal floating point numbers (bsd3, library, tools)LeventErkok
Focus90.0Tools for focusing in on locations within numbers (data, library, mit)NateSoares
Folly210.0A first order logic library in Haskell (bsd3, library, program, theorem-provers)dillonhuff
FontyFruity552.25A true type file format loader (bsd3, font, graphics, library, text)VincentBerthoux
ForSyDe50.0ForSyDe's Haskell-embedded Domain Specific Language. (bsd3, hardware, language, library)AlfonsoAcosta, HoseinAttarzadeh, ugeorge
ForestStructures110.0Tree- and forest structures (benchmark, bioinformatics, bsd3, formal-languages, library)ChristianHoener
ForkableT100.0Forkable monad transformers (bsd3, control, library)AndrasSlemmer
FormalGrammars210.0(Context-free) grammars in formal language theory (bioinformatics, formal-languages, gpl, library, program)ChristianHoener
Foster60.0Utilities to generate and solve puzzles (benchmark, data, mit, program)Jefffrey
FpMLv5350.0A binding for the Financial Products Markup Language (v5.3) (financial, lgpl, library, xml)MalcolmWallace
FractalArt142.0Generates colorful wallpapers (graphics, mit, program)TomSmeets
Fractaler10.0 (graphics, mit, program)serprex
Frames670.0Data frames For working with tabular data files (bsd3, data, library)AnthonyCowley
Frank80.0An experimental programming language with typed algebraic effects (languages, program, public-domain)ConorMcBride
FreeTypeGL (deprecated in favor of FTGL)120.0Loadable texture fonts for OpenGL. (bsd3, deprecated, graphics, library)EyalLotem
FunGEn280.0A lightweight, cross-platform, OpenGL/GLUT-based game engine. (bsd3, game, library, program)MiloslavRaus, SimonMichael
Fungi80.0Funge-98 interpreter written in Haskell (bsd3, compilers-interpreters, program)ThomasEding
GA70.0Genetic algorithm library (ai, algorithms, bsd3, library, optimisation)KennethHoste
GGg30.0GGg cipher (mit, program, text)xnil
GHood370.0A graphical viewer for Hood (bsd3, debug, library)HugoPacheco, JanisVoigtlaender
GLFW540.0A Haskell binding for GLFW (bsd3, graphics, library)PaulLiu
GLFW-OGL30.0A binding for GLFW (OGL) (bsd3, graphics, library)NealAlexander
GLFW-b870.0Bindings to GLFW OpenGL library (bsd3, graphics, library)BrianLewis, SchellScivally, javjarfer
GLFW-b-demo150.0GLFW-b demo (bsd3, graphics, program)BrianLewis, SchellScivally, javjarfer
GLFW-task40.0GLFW utility functions to use together with monad-task. (bsd3, graphics, library)PaulLiu
GLHUI80.0Open OpenGL context windows in X11 with libX11 (bsd3, graphics, library)HugoGomes
GLM100.0Simple Gridlab-D GLM parser and utilities. (language, library, mit, program)LyndonMaydwell
GLMatrix50.0Utilities for working with OpenGL matrices (gpl, graphics, library)fiendfan1
GLURaw2350.0A raw binding for the OpenGL graphics system (bsd3, graphics, library)JasonDagit, SvenPanne
GLUT2660.0A binding for the OpenGL Utility Toolkit (bsd3, graphics, library)ChrisDornan, IanLynagh, JasonDagit, SvenPanne
GLUtil570.0Miscellaneous OpenGL utilities. (bsd3, graphics, library)AnthonyCowley
GPX270.0Parse GPX files (bsd3, library, utils)ThomasDuBuisson, TonyMorris
GPipe1320.0Typesafe functional GPU graphics programming (graphics, library, mit)TobiasBexelius
GPipe-Collada70.0Load GPipe meshes from Collada files (bsd3, graphics, library)TobiasBexelius
GPipe-Examples30.0Examples for the GPipes package (gpl, graphics, program)KreeColeMcLaughlin
GPipe-GLFW240.0GLFW OpenGL context creation for GPipe (graphics, library, mit)plredmond
GPipe-TextureLoad90.0Load GPipe textures from filesystem (bsd3, graphics, library)TobiasBexelius
GTALib80.0A library for GTA programming (bsd3, language, library)KentoEmoto
Gamgine140.0Some kind of game library or set of utilities. (bsd3, library)DanielTrstenjak
Ganymede30.0An Io interpreter in Haskell. (bsd3, language, program)WaltBaety
GaussQuadIntegration80.0Non-adaptive Gaussian quadrature for numeric integraton (bsd3, library, math)GrigorySarnitsky
GeBoP110.0Several games (bsd3, game, program)HenkJanVanTuyl
GenI1730.0A natural language generator (specifically, an FB-LTAG surface realiser) (gpl, library, natural-language-processing, program)EricKow
GenSmsPdu20.0Automatic SMS message generator (bsd3, program, testing)KwanghoonChoi
Genbank90.0Libary for processing the NCBI genbank format (bioinformatics, gpl, library, program)FlorianEggenhofer
Gene-CluEDO130.0Hox gene clustering (bioinformatics, gpl, library, program)ChristianHoener
GeneralTicTacToe42.0A general TicTacToe game implementation. (game, mit, program)afonsomatos
GenericPretty500.0A generic, derivable, haskell pretty printer. (bsd3, generics, library, pretty-printer, text)RazvanRanca
GenussFold40.0MCFGs for Genus-1 RNA Pseudoknots (bioinformatics, formal-languages, gpl, library, program)ChristianHoener
GeoIp70.0Pure bindings for the MaxMind IP database. (library, network)StephenCook
GeocoderOpenCage12.0Geocoder and Reverse Geocoding Service Wrapper (gpl, library, web)juergenhah, jhahn
Geodetic (deprecated in favor of geodetic)80.0Geodetic calculations (bsd3, deprecated, library, utils)TonyMorris
GeomPredicates60.0Geometric predicates (bsd3, library, math)NealAlexander
GeomPredicates-SSE30.0Geometric predicates (Intel SSE) (bsd3, library, math)NealAlexander
GiST10.0A Haskell implementation of a Generalized Search Tree (GiST) (data-structures, gpl, library)MihailBogojeski
Gifcurry1022.0GIF creation utility. (application, bsd3, graphics, library, program)lettier
GiveYouAHead70.0to auto-do somethings (giveyouahead, library, mit)Qinka
Glob22130.0Globbing library (bsd3, library, system)MattiNiemenmaa
GlomeTrace80.0Ray Tracing Library (gpl, graphics, library)JimSnow
GlomeVec100.0Simple 3D vector library (gpl, graphics, library)JimSnow
GlomeView30.0SDL Frontend for Glome ray tracer (gpl, graphics, program)JimSnow
GoogleChart70.0Generate web-based charts using the Google Chart API (bsd3, graphics, library)EvanMartin
GoogleCodeJam150.0A monad for flexible parsing of Google Code Jam input files with automatic parallelization. (library, mit, text)johannesgerer
GoogleDirections40.0Haskell Interface to Google Directions API (bsd3, library, network)KevinOberlies
GoogleSB20.0Interface to Google Safe Browsing API (bsd3, library, security)AlexOtt
GoogleSuggest50.0Interface to Google Suggest API (browser, gpl, library)AndyStewart
GoogleTranslate60.0Interface to Google Translate API (gpl, language, library)AndyStewart
GotoT-transformers20.0A monad and monadic transformer providing "goto" functionality (bsd3, control, library)GregoryCrosswhite
Grafos90.0Grafos Haskell (bsd3, library, unclassified)jppianta83
GrammarProducts110.0Grammar products and higher-dimensional grammars (bioinformatics, formal-languages, gpl, library)ChristianHoener
Graph50080.0Graph500 benchmark-related definitions and data set generator. (concurrency, gpl, library, program)AlexanderVershilov
GraphHammer10.0GraphHammer Haskell graph analyses framework inspired by STINGER. (concurrency, gpl, library)AlexanderVershilov
GraphHammer-examples10.0Test harness for TriangleCount analysis. (concurrency, gpl, library, program)AlexanderVershilov
GraphSCC2600.0Tarjan's algorithm for computing the strongly connected components of a graph. (algorithms, bsd3, library)IavorDiatchki
Graphalyze350.0Graph-Theoretic Analysis library. (algorithms, graphs, library)IvanMiljenovic
Grempa160.0Embedded grammar DSL and LALR parser generator (bsd3, library, parsing)DavidFox, OlleFredriksson
GroteTrap80.0Parser and selection library for expression languages. (bsd3, language, library)MartijnVanSteenbergen
Grow60.0A declarative make-like interpreter. (build, library)MarcCoiffier
GrowlNotify50.0Notification utility for Growl. (bsd3, library, network, program)NicholasBurlett
Gtk2hsGenerics30.0Convenience functions to extend Gtk2hs. (gpl, gui, library)MichaelDever
GtkGLTV20.0OpenGL support for Gtk-based GUIs for Tangible Values (bsd3, library, user-interfaces)ConalElliott
GtkTV180.0Gtk-based GUIs for Tangible Values (bsd3, library, user-interfaces)ConalElliott
GuiHaskell40.0A graphical REPL and development environment for Haskell (bsd3, development, program)NeilMitchell
GuiTV60.0GUIs for Tangible Values (bsd3, interfaces, library, user-interfaces)ConalElliott
H100.0The Haskell/R mixed programming environment. (bsd3, ffi, program)MathieuBoespflug
HARM80.0A simple ARM emulator in haskell (compilers-interpreters, library, program)AlexMason
HAppS-Data (deprecated in favor of happstack-data)40.0HAppS data manipulation libraries (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-IxSet (deprecated in favor of happstack-ixset)50.0 (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-Server (deprecated in favor of happstack-server)60.0Web related tools and services. (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-State (deprecated in favor of happstack-state)50.0Event-based distributed state. (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-Util (deprecated in favor of happstack-util)80.0Web framework (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppSHelpers (deprecated in favor of happstack-helpers)150.0OBSOLETE. Please use happstack-helpers (bsd3, deprecated, library, web)ThomasHartman
HCL130.0High-level library for building command line interfaces. (bsd3, library, program, user-interfaces)JustinBailey
HCard70.0A library for implementing a Deck of Cards (bsd3, game, library)JoeFredette
HCodecs1000.0A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files. (bsd3, codec, library)GeorgeGiorgidze, DonyaQuick
HDBC2340.0Haskell Database Connectivity (bsd3, database, library)ErikHesselink, IsaacJones, JohnGoerzen, NicolasWu
HDBC-mysql540.0MySQL driver for HDBC (database, lgpl, library)BryanOSullivan, ChrisWaterson, ryantm
HDBC-odbc570.0ODBC driver for HDBC (bsd3, database, library)IsaacJones, JohnGoerzen, NicolasWu, anton_dessiatov
HDBC-postgresql1060.0PostgreSQL driver for HDBC (bsd3, database, library)ErikHesselink, IsaacJones, JohnGoerzen, NicolasWu
HDBC-postgresql-hstore (deprecated)10.0Manipulate data in PostgreSQL "hstore" columns. (database, deprecated, library, mit)AlexanderBondarenko
HDBC-session250.0Bracketed connection for HDBC (bsd3, database, library)KeiHibino
HDBC-sqlite31390.0Sqlite v3 driver for HDBC (bsd3, database, library)ErikHesselink, IsaacJones, JohnGoerzen
HDRUtils50.0Utilities for reading, manipulating, and writing HDR images (bsd3, graphics, library)JeffersonHeard
HERA60.0 (bsd3, library, math)LukePalmer
HFitUI120.0The library for generating a graphical interface on the web (bsd3, library, program, web)QSpider2017
HFrequencyQueue20.0A Queue with a random (weighted) pick function (data, gpl, library)Bellaz
HFuse171.5HFuse is a binding for the Linux FUSE library. (bsd3, library, system)GwernBranwen, MaximTreskin, PaulVanDerWalt, TaruKarttunen, M15K, dhrosa
HGE2D160.02D game engine written in Haskell (game, library, mit, program)I3ck
HGL500.0A simple graphics library based on X11 or Win32 (bsd3, graphics, library)AlanHawkins, ChristophLueth
HGamer3D1740.0Toolset for the Haskell Game Programmer (game-engine, library)PeterAlthainz
HGamer3D-API (deprecated in favor of HGamer3D)80.0Library to enable 3D game development for Haskell - API (deprecated, game, library)PeterAlthainz
HGamer3D-Audio (deprecated in favor of HGamer3D)220.0Toolset for the Haskell Game Programmer - Audio Functionality (deprecated, game-engine, library)PeterAlthainz
HGamer3D-Bullet-Binding (deprecated)110.0Windows Game Engine for the Haskell Programmer - Bullet Bindings (deprecated, game-engine, library, physics)PeterAlthainz
HGamer3D-CAudio-Binding (deprecated in favor of HGamer3D-SFML-Binding)20.0Library to enable 3D game development for Haskell - cAudio Bindings (deprecated, game, library)PeterAlthainz
HGamer3D-CEGUI-Binding (deprecated in favor of HGamer3D)440.0A Toolset for the Haskell Game Programmer - CEGUI Bindings (deprecated, game-engine, gui, library)PeterAlthainz
HGamer3D-Common (deprecated in favor of HGamer3D)90.0Toolset for the Haskell Game Programmer - Game Engine and Utilities (deprecated, game-engine, library)PeterAlthainz
HGamer3D-Data (deprecated in favor of HGamer3D)450.0Toolset for the Haskell Game Programmer - Data Definitions (deprecated, game-engine, library)PeterAlthainz
HGamer3D-Enet-Binding (deprecated in favor of HGamer3D)340.0Enet Binding for HGamer3D (deprecated, game-engine, library, network)PeterAlthainz
HGamer3D-GUI (deprecated in favor of HGamer3D-Graphics3D)160.0GUI Functionality for HGamer3D (deprecated, game-engine, library)PeterAlthainz
HGamer3D-Graphics3D (deprecated in favor of HGamer3D)250.0Toolset for the Haskell Game Programmer - 3D Graphics Functionality (deprecated, game-engine, library)PeterAlthainz
HGamer3D-InputSystem (deprecated in favor of HGamer3D)220.0Joystick, Mouse and Keyboard Functionality for HGamer3D (deprecated, game-engine, library)PeterAlthainz
HGamer3D-Network (deprecated in favor of HGamer3D)230.0Networking Functionality for HGamer3D (deprecated, game-engine, library)PeterAlthainz
HGamer3D-OIS-Binding (deprecated in favor of HGamer3D-SFML-Binding)40.0Library to enable 3D game development for Haskell - OIS Bindings (deprecated, game, library)PeterAlthainz
HGamer3D-Ogre-Binding (deprecated in favor of HGamer3D)630.0Ogre Binding for HGamer3D (deprecated, game-engine, graphics, library)PeterAlthainz
HGamer3D-SDL2-Binding (deprecated in favor of HGamer3D)280.0SDL2 Binding for HGamer3D (deprecated, game-engine, library)PeterAlthainz
HGamer3D-SFML-Binding (deprecated in favor of HGamer3D)540.0SFML Binding for HGamer3D (audio, deprecated, game-engine, graphics, library)PeterAlthainz
HGamer3D-WinEvent (deprecated in favor of HGamer3D-Graphics3D)140.0Windowing and Event Functionality for HGamer3D (deprecated, game-engine, library)PeterAlthainz
HGamer3D-Wire (deprecated in favor of HGamer3D)50.0Wire Functionality for HGamer3D (deprecated, game-engine, library)PeterAlthainz
HGraphStorage90.0Graph database stored on disk (benchmark, bsd3, database, library)JeanPhilippeMoresmau
HHDL20.0Hardware Description Language embedded in Haskell. (bsd3, hardware, library)SergueyZefirov
HJScript130.0HJScript is a Haskell EDSL for writing JavaScript programs. (bsd3, language, library, web)JeremyShaw, NiklasBroberg
HJVM80.0A library to create a Java Virtual Machine and manipulate Java objects (bsd3, language, library)JeanPhilippeMoresmau
HJavaScript90.0HJavaScript is an abstract syntax for a typed subset of JavaScript. (bsd3, language, library)NiklasBroberg
HLearn-algebra (deprecated in favor of subhask)180.0Algebraic foundation for homomorphic learning (bsd3, data-mining, deprecated, library, machine-learning)MikeIzbicki
HLearn-approximation (deprecated)30.0 (bsd3, data-mining, data-structures, deprecated, library, machine-learning)MikeIzbicki
HLearn-classification (deprecated)80.0 (bsd3, data-mining, deprecated, library, machine-learning)MikeIzbicki
HLearn-datastructures (deprecated)30.0 (bsd3, data-mining, data-structures, deprecated, library, machine-learning)MikeIzbicki
HLearn-distributions (deprecated)210.0Distributions for use with the HLearn library (bsd3, data-mining, deprecated, library, machine-learning, statistics)MikeIzbicki
HList290.0Heterogeneous lists (data, library, mit)AdamVogt, GwernBranwen
HListPP30.0A preprocessor for HList labelable labels (bsd3, development, program)AdamVogt
HLogger (deprecated in favor of hlogger)10.0Simple, concurrent and easy-to-use logging library (bsd3, concurrency, deprecated, library, logging, program)JonKristensen
HMM80.0A hidden markov model library (algorithms, bsd3, data-mining, library, machine-learning)MikeIzbicki
HMap420.0Fast heterogeneous maps and unconstrained typeable like functionality. (bsd3, data, data-structures, library)AtzeVanDerPloeg
HMarkov180.0Markov-generated sequences (bsd3, library, text)swizzard
HNM60.0Happy Network Manager (bsd3, library, network, program, system)CetinSert
HODE60.0Binding to libODE (bsd3, game, library, physics)DavidHimmelstrup
HOpenCV220.0A binding for the OpenCV computer vision library (ai, gpl, graphics, library, program)NoamLewis
HPDF2480.0Generation of PDF documents (bsd3, graphics, library)alpheccar
HPath40.0Extract Haskell declarations by name. (bsd3, library, program, source-tools, text)JasonDusek
HPhone (deprecated)70.0Phone number parser and validator - This is now DEPRECATED! (deprecated, library, text)vijayanant, raghuugare
HPi132.0GPIO, I2C and SPI functions for the Raspberry Pi. (bsd3, library, system)WJWH
HPlot50.0A minimal monadic PLplot interface for Haskell (bsd3, foreign, graphics, library, program)YakovZaytsev
HPong80.0A simple OpenGL Pong game based on GLFW (game, gpl, program)RemcoNiemeijer
HROOT310.0Haskell binding to the ROOT data analysis framework (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HROOT-core60.0Haskell binding to ROOT Core modules (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HROOT-graf60.0Haskell binding to ROOT Graf modules (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HROOT-hist60.0Haskell binding to ROOT Hist modules (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HROOT-io50.0Haskell binding to ROOT IO modules (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HROOT-math60.0Haskell binding to ROOT Math modules (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HROOT-tree50.0Haskell binding to ROOT Tree modules (graphics, lgpl, library, math, numerical, statistics)IanWooKim
HRay100.0Haskell raytracer (bsd3, graphics, program)GwernBranwen, KennethHoste
HSFFIG30.0Generate FFI import declarations from C include files (bsd3, ffi-tools, library, program)DmitryGolubovsky
HSGEP80.0Gene Expression Programming evolutionary algorithm in Haskell (ai, bsd3, library, program)MatthewSottile
HSH800.0Library to mix shell scripting with Haskell programs (lgpl, library, system)JohnGoerzen
HSHHelpers140.0Convenience functions that use HSH, instances for HSH. (gpl, library, system)ThomasHartman
HSet160.0Faux heterogeneous sets (bsd3, data, library)athanclark
HSlippyMap130.0OpenStreetMap (OSM) Slippy Map (bsd3, geography, library)alp
HSmarty110.0Small template engine (bsd3, library, text)AlexanderThiemann
HSoM200.0Library for computer music education (bsd3, library, sound)DonyaQuick
HSoundFile (deprecated in favor of sndfile-enumerators)10.0Audio file reading/writing (bsd3, codecs, deprecated, library, sound)JohnLato
HStringTemplate1602.0StringTemplate implementation in Haskell. (bsd3, library, text)SterlingClover
HStringTemplateHelpers130.0Convenience functions and instances for HStringTemplate (gpl, library, text)ThomasHartman
HSvm150.0Haskell Bindings for libsvm (bsd3, classification, datamining, library)PaoloLosi, PavelRyzhov
HTF1200.0The Haskell Test Framework (lgpl, library, program, testing)DavidLeuschner, GwernBranwen, StefanWehr
HTTP54310.0A library for client-side HTTP (bsd3, library, network)BjornBringert, BryanOSullivan, DonaldStewart, DuncanCoutts, GaneshSittampalam, JohanTibell, SigbjornFinne
HTTP-Simple (deprecated in favor of HTTP)90.0DEPRECATED Enable simple wrappers to Network.HTTP (bsd3, deprecated, library, network)BradClawsie
HTab90.0Tableau based theorem prover for hybrid logics (gpl, program, theorem-provers)GuillaumeHoffmann
HTicTacToe50.0An SDL tic-tac-toe game. (game, graphics, mit, program)KorcanHussein
HUnit67232.25A unit testing framework for Haskell (bsd3, library, testing)AdamBergmark, DonaldStewart, DuncanCoutts, RichardGiraud, SimonHengel
HUnit-Diff (deprecated)30.0Assertions for HUnit with difference reporting (bsd3, deprecated, library, testing)DagOdenhall
HUnit-Plus230.0A test framework building on HUnit. (bsd3, library, test, testing)emc2
HUnit-approx160.0Approximate equality for floating point numbers with HUnit (bsd3, library, testing)RichardEisenberg
HXMPP (deprecated in favor of pontarius-xmpp)10.0A (prototyped) easy to use XMPP library (bsd3, deprecated, library, network, program)JonKristensen
HXQ460.0A Compiler from XQuery to Haskell (bsd3, library, xml)LeonidasFegaras
HaLeX220.0HaLeX enables modelling, manipulation and visualization of regular languages (data, library, program, public-domain)GwernBranwen, joaoSaraiva
HaMinitel10.0An Haskell library to drive the french Minitel through a serial port (gpl, library, terminal)zigazou
HaPy120.0Haskell bindings for Python (foreign, library, mit)DavidFisher
HaRe620.0the Haskell Refactorer. (bsd3, development, refactoring)AlanZimmerman, ChrisBrown
HaTeX862.0The Haskell LaTeX library. (bsd3, latex, library)DanielDiaz
HaTeX-meta (deprecated)60.0This package is deprecated. From version 3, HaTeX does not need this anymore. (bsd3, deprecated, program, text)DanielDiaz
HaTeX-qq100.0Quasiquoters for HaTeX (bsd3, library, text)HiromiIshii
HaVSA60.0An implementation of the Version Space Algebra learning framework. (ai, bsd3, library, program)RoganCreswick
HaXml2980.0Utilities for manipulating XML documents (lgpl, library, program, text, xml)MalcolmWallace
Hach60.0Simple chat (library, mit, network, program)DmitryMalikov
HackMail100.0A Procmail Replacement as Haskell EDSL (bsd3, library, network, program)JoeFredette
Haggressive50.0Aggression analysis for Tweets on Twitter (gpl, library, web)Pold87
HandlerSocketClient120.0Haskell implementation of a HandlerSocket client (API). (bsd3, database, library)XingboWu
HandsomeSoup1460.0Work with HTML more easily in HXT (bsd3, library, text)AdityaBhargava
Hangman70.0The classic game of Hangman. (game, gpl, program)lf94
HarmTrace540.0Harmony Analysis and Retrieval of Music (gpl, music, program)BasDeHaas, JosePedroMagalhaes
HarmTrace-Base532.0Parsing and unambiguously representing musical chords. (lgpl, library, music)BasDeHaas, JosePedroMagalhaes
HasCacBDD90.0Haskell bindings for CacBDD (data, gpl, library)m4lvin
HasGP20.0A Haskell library for inference using Gaussian processes (ai, classification, datamining, gpl, library, statistics)SeanHolden
Haschoo (deprecated)50.0Minimalist R5RS Scheme interpreter (bsd3, compilers-interpreters, deprecated, program)MattiNiemenmaa
Hashell20.0Simple shell written in Haskell (gpl, program, user-interfaces)GwernBranwen
HaskRel30.0HaskRel, Haskell as a DBMS with support for the relational algebra (database, gpl, library)thormick
HaskellForMaths650.0Combinatorics, group theory, commutative algebra, non-commutative algebra (bsd3, library, math)DavidAmos
HaskellLM90.0Pure Haskell implementation of the Levenberg-Marquardt algorithm (gpl, library, math)KietLam
HaskellNN130.0High Performance Neural Network in Haskell (ai, gpl, library)KietLam
HaskellNet330.0Client support for POP3, SMTP, and IMAP (bsd3, library, network)JonathanDaugherty, lemol
HaskellNet-SSL470.0Helpers to connect to SSL/TLS mail servers with HaskellNet (bsd3, library, network)DanielWright, lemol
HaskellTorrent40.0A concurrent bittorrent client (bsd3, network, program)JesperLouisAndersen
HaskellTutorials30.0Haskell Tutorials by Evgeny Ukhanov (mit, program, tutorials)mrlsd
Haskelloids30.0A reproduction of the Atari 1979 classic "Asteroids" (bsd3, game, program)MatthewHayden
Hastodon142.0mastodon client module for Haskell (library, mit, web)syucream
Hate22.0A small 2D game framework. (graphics, library, mit, program)bananu7
Hawk30.0Haskell Web Application Kit (bsd3, library, web)BjoernPeemoeller
Hayoo20.0The Hayoo! search engine for Haskell API search on hackage (data, mit, program, text)UweSchmidt
Hclip1420.0A small cross-platform library for reading and modifying the system clipboard. (bsd3, library, system)JensThomas
Hedi50.0Line oriented editor (bsd3, editor, library, program)PaoloVeronelli
HerbiePlugin30.0automatically improve your code's numeric stability (bsd3, library, math)MikeIzbicki
Hermes (deprecated)40.0Message-based middleware layer (bsd3, deprecated, library, middleware, network)SveinOveAas
Hieroglyph320.0Purely functional 2D graphics for visualization. (bsd3, graphics, library)JeffersonHeard
HiggsSet (deprecated)30.0A multi-index set with advanced query capabilites (bsd3, data, deprecated, library)LarsPetersen
Hipmunk (deprecated)460.0A Haskell binding for Chipmunk. (deprecated, game, library, physics)FelipeLessa, SoenkeHahn
Hipmunk-Utils170.0Useful functions for Hipmunk (bsd3, game, library, physics)suzumiya
HipmunkPlayground190.0A playground for testing Hipmunk. (game, physics, program)FelipeLessa
Hish120.0 (bsd3, command-line, console, library, program, shell)jaiyalas
Histogram90.0 (bsd3, charts, library)MikeIzbicki
Hmpf50.0An MPD client designed for a Home Theatre PC (application, gpl, program)TomBevan
Hoed320.0Lightweight algorithmic debugging. (bsd3, debug, library, trace)faddegon
HoleyMonoid130.0Monoids with holes. (bsd3, data-structures, library)MartijnVanSteenbergen
Holumbus-Distribution60.0intra- and inter-program communication (distributed-computing, library, network, program)StefanSchmidt
Holumbus-MapReduce60.0a distributed MapReduce framework (distributed-computing, library, program)StefanSchmidt
Holumbus-Searchengine70.0A search and indexing engine. (data, library, mit, text)UweSchmidt
Holumbus-Storage40.0a distributed storage system (distributed-computing, library, program)StefanSchmidt
Homology80.0Compute the homology of a chain complex (gpl, library, math)DamekDavis
HongoDB10.0A Simple Key Value Store (bsd3, database, library)HideyukiTanaka
HostAndPort70.0Parser for host and port pairs like localhost:22 (benchmark, library, mit, network)slava
Hricket20.0A Cricket scoring application. (bsd3, game, program)AnthonyGrimes
Hs2lib140.0A Library and Preprocessor that makes it easier to create shared libs from Haskell programs. (bsd3, development, library, program)TamarChristina
HsASA80.0A haskell interface to Lester Ingber's adaptive simulating annealing code (bsd3, library, math)DonaldStewart, MalcolmWallace
HsHTSLib90.0High level bindings to htslib. (bio, library, mit)kaizhang
HsHaruPDF60.0Haskell binding to libharu ( (bsd3, graphics, library)AudreyTang
HsHyperEstraier150.0HyperEstraier binding for Haskell (library, public-domain, text)MasatakeDaimon
HsJudy90.0Judy bindings, and some nice APIs (bsd3, data, library)GwernBranwen
HsOpenSSL2992.0Partial OpenSSL binding for Haskell (cryptography, library, public-domain)MasatakeDaimon, VladimirShabanov
HsOpenSSL-x509-system360.0Use the system's native CA certificate store with HsOpenSSL (bsd3, filesystem, library, system)MariosTitas
HsParrot70.0Haskell integration with Parrot virtual machine (bsd3, language, library, pugs)AudreyTang
HsPerl5160.0Haskell interface to embedded Perl 5 interpreter (bsd3, language, library, pugs)AudreyTang
HsSVN230.0Partial Subversion (SVN) binding for Haskell (development, library, public-domain, system)MasatakeDaimon
HsSyck370.0Fast, lightweight YAML loader and dumper (library, mit, pugs, text)AudreyTang, GwernBranwen, OliverCharles
HsTools70.0Haskell helper functions (bsd3, generic, library)ChristianHoener
Hsed40.0Stream Editor in Haskell (bsd3, editor, library, program)VitaliyRukavishnikov
Hsmtlib40.0Haskell library for easy interaction with SMT-LIB 2 compliant solvers. (bsd3, library, smt)roger62
HueAPI150.0API for controlling Philips Hue lights (bsd3, hardware, library)SjoerdVisscher
HulkImport90.0Easily bulk import CSV data to SQL Server (bsd3, data, library, program)smobs
Hungarian-Munkres170.0A Linear Sum Assignment Problem (LSAP) solver (algorithms, benchmark, gpl, library)kaizhang
Hydrogen80.0The library for generating a WebGL scene for the web (bsd3, library, program, web)QSpider2017
IDynamic20.0Indexable, serializable form of Data.Dynamic (bsd3, data, library)AlbertoCorona
IFS90.0Iterated Function System generation for Haskell (bsd3, graphics, library, program)alpheccar
INblobs20.0Editor and interpreter for Interaction Nets (compilers-interpreters, lgpl, program)MiguelVilaca
IOR60.0Region based resource management for the IO monad. (bsd3, library, monadic-regions, system)IvanTomac
IORefCAS (deprecated in favor of atomic-primops)120.0Atomic compare and swap for IORefs and STRefs. (bsd3, data, deprecated, library)RyanNewton
IOSpec410.0A pure specification of the IO monad. (bsd3, library, testing)WouterSwierstra
IPv6Addr390.0Library to deal with IPv6 address text representations. (bsd3, library, network)MichelBoucey
IPv6DB150.0A RESTful Web Service for IPv6-related data (bsd3, database, library, network, program)MichelBoucey
IcoGrid40.0Library for generating grids of hexagons and pentagons mapped to a sphere. (gpl, graphics, library)JimSnow
IfElse2790.0Anaphoric and miscellaneous useful control-flow (bsd3, control, library)IvanPerez, JeffersonHeard, keera_studios_ci
Imlib80.0 (bsd3, graphics, library)AndreasRaster, CaleGibbard
ImperativeHaskell232.0A library for writing Imperative style haskell. (control, development, embedded, gpl, language, library)MatthewMirman
IndentParser (deprecated)90.0Combinators for parsing indentation based syntatic structures (deprecated, gpl, library, parsing)PiyushKurur
IndexedList20.0Length- and element-indexed lists sitting somewhere between homogeneous and fully heterogeneous. (bsd3, data, library)kwf
InfixApplicative30.0liftA2 for infix operators. (bsd3, control, library)ThomasDavie
Interpolation280.0Multiline strings, interpolation and templating. (data, library, text)VilleTirronen
Interpolation-maxs50.0Multiline strings, interpolation and templating. (data, library, text)MaxwellSwadling
IntervalMap330.0Containers for intervals, with efficient search. (benchmark, bsd3, data, library)ChristophBreitkopf
Irc20.0DSL for IRC bots (gpl, library, network)yunxing
IrrHaskell80.0Haskell FRP binding to the Irrlicht game engine. (ffi, game-engine, graphics, lgpl, library)EwenCochran, MaciejBaranski
IsNull40.0A typeclass to determine if a given value is null. (bsd3, data, library)jcristovao
JSON-Combinator (deprecated in favor of lens)200.0A combinator library on top of a generalised JSON type (bsd3, combinators, deprecated, json, library)TonyMorris
JSON-Combinator-Examples (deprecated in favor of lens)20.0Example uses of the JSON-Combinator library. (bsd3, combinators, deprecated, library)TonyMorris
JSONParser140.0Parse JSON (bsd3, library, text)AlanHawkins
JSONb130.0JSON parser that uses byte strings. (bsd3, library, text)JasonDusek
JYU-Utils40.0Some utility functions for JYU projects (library, mit, utility)VilleTirronen
JackMiniMix (deprecated in favor of jackminimix)50.0control JackMiniMix (deprecated, gpl, library, sound)RenickBell
Javasf (deprecated in favor of javasf)10.0A utility to print the SourceFile attribute of one or more Java class files. (bsd3, deprecated, language, program)TonyMorris
Javav (deprecated in favor of javav)110.0A utility to print the target version of Java class files. (bsd3, deprecated, language, program)TonyMorris
Jdh50.0A Json implementation for Haskell, with JavaScript Values and Encoding/Decoding (data, library, mit)brunoczim
JsContracts60.0Design-by-contract for JavaScript (bsd3, language, library, program)ArjunGuha
JsonGrammar170.0Combinators for bidirectional JSON parsing (bsd3, json, language, library)MartijnVanSteenbergen
JuicyPixels29422.75Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance) (bsd3, codec, graphics, image, library)VincentBerthoux
JuicyPixels-canvas30.0Functions for drawing lines, squares and so on pixel by pixel (bsd3, graphics, library)eax
JuicyPixels-extra170.0Efficiently scale, crop, flip images with JuicyPixels (benchmark, bsd3, graphics, image, library)mrkkrp
JuicyPixels-repa180.0Convenience functions to obtain array representations of images. (bsd3, graphics, library)ThomasDuBuisson
JuicyPixels-scale-dct150.0Scale JuicyPixels images with DCT (bsd3, library, web)phadej
JuicyPixels-util80.0Convert JuicyPixel images into RGBA format, flip, trim and so on (bsd3, control, library)FumiakiKinoshita
JunkDB30.0 (bsd3, database, library)seagull
JunkDB-driver-gdbm30.0 (bsd3, database, library)seagull
JunkDB-driver-hashtables30.0 (bsd3, database, library)seagull
JustParse80.0A simple and comprehensive Haskell parsing library (library, public-domain, text)grantslatton
KMP110.0Knuth–Morris–Pratt string searching algorithm (algorithms, bsd3, library)CindyLinz
KSP30.0A library with the kerbal space program universe and demo code (library, public-domain, testing)frosch03, brettschneider
Kalman (deprecated in favor of kalman)40.0A slightly extended Kalman filter (bsd3, deprecated, library, math)DominicSteinitz
KdTree1160.0KdTree, for efficient search in K-dimensional point clouds. (bsd3, data-mining, data-structures, graphics, library, machine-learning)IssacTrotts, jessekempf
Ketchup140.0A super small web framework for those who don't like big and fancy codebases (ketchup, library, mit, web)Hamcha
KiCS120.0A compiler from Curry to Haskell (compiler, library, program)BerndBrassel, BjoernPeemoeller
KiCS-debugger20.0debug features for kics (debug, library, program)BerndBrassel
KiCS-prophecy40.0a transformation used by the kics debugger (debug, library, program)BerndBrassel
Kleislify100.0Variants of Control.Arrow functions, specialised to kleislis. (bsd3, control, library)DylanJust
Konf20.0A configuration language and a parser. (library, text)GoktugKayaalp
Kriens30.0Category for Continuation Passing Style (bsd3, control, library)matteo_provenzano
KyotoCabinet60.0Kyoto Cabinet DB bindings (bsd3, database, library)WarrenHarris
L-seed40.0Plant growing programming game (bsd3, game, library, program)JoachimBreitner
LATS40.0Linear Algebra on Typed Spaces (bsd3, library, numeric)guaraqe
LDAP350.0Haskell binding for C LDAP API (bsd3, library, network)EdwardYang, JohnGoerzen, ip1981
LRU (deprecated)60.0Implements an LRU data structure (bsd3, deprecated, library, unclassified)AdamLangley
LTree60.0Tree with only leaves carrying the data. (data, library, public-domain)RahulGopinath
LambdaCalculator160.0A basic lambda calculator with beta reduction and a REPL (bsd3, language, program)ThomasDuBuisson
LambdaDB102.0On-memory Database using Lambda Function environment. (bsd3, database, library, program)Ailrun
LambdaHack712.0A game engine library for roguelike dungeon crawlers (bsd3, game, game-engine, library, program, roguelike)AndresLoeh, MikolajKonarski
LambdaINet90.0Graphical Interaction Net Evaluator for Optimal Evaluation (application, bsd3, program)PaulLiu
LambdaNet62.0A configurable and extensible neural network library (library, machine-learning, mit)jbarrow
LambdaPrettyQuote80.0Quasiquoter, and Arbitrary helpers for the lambda calculus. (bsd3, language, library)JonathanFischoff
LambdaShell90.0Simple shell for evaluating lambda expressions (compilers-interpreters, gpl, program)RobertDockins
Lambdajudge72.0A library to easily host Haskell based programming competitions (development, library, mit)ankitku
Lambdaya80.0Library for RedPitaya (lgpl, library, system)ralu
LargeCardinalHierarchy30.0A transfinite cardinal arithmetic library including all known large cardinals (library, math, mathematics, maths, set-theory)Stephen_E_A_Britton
Lastik (deprecated)180.0A library for compiling programs in a variety of languages (bsd3, deprecated, development, library)TonyMorris
Lattices210.0A library for lattices (gpl, library, math)BartCoppens
Lazy-Pbkdf2200.0Lazy PBKDF2 generator. (benchmark, cryptography, library, mit)Ofenhed
LazyVault30.0A simple sandboxing tool for Haskell packages. (development, gpl, program)KevinVanRooijen
Level020.0A Snake II clone written using SDL. (game, gpl, program)MikeLedger
LibClang150.0Haskell bindings for libclang (a C++ parsing library) (bsd3, language, library)ChetanTaralekar, deech
LibZip220.0Bindings to libzip, a library for manipulating zip archives. (bsd3, codec, foreign, library)SergeyAstanin
Limit60.0Wrapper for data that can be unbounded (data, library, mit)NateSoares
LinearSplit50.0Partition the sequence of items to the subsequences in the order given (algorithms, bsd3, library)VitaliyRukavishnikov
LinguisticsTypes120.0Collection of types for natural language (benchmark, bsd3, library, natural-language-processing)ChristianHoener
LinkChecker20.0Check a bunch of local html files for broken links (bsd3, program, web)JensStimpfle
List2300.0List monad transformer and class (bsd3, control, library)YairChuchem
ListLike13420.0Generic support for list-like structures (bsd3, generics, library)DavidFox, JohnGoerzen, JohnLato
ListTree190.0Trees and monadic trees expressed as monadic lists where the underlying monad is a list (algorithms, bsd3, library)YairChuchem
ListWriter70.0define a list constant using Monadic syntax other than overhead [,] (bsd3, library, syntax)YLiLarry
ListZipper140.0Simple zipper for lists (bsd3, data, library)RyanIngram
Logic20.0Logic (library, math, mit)gogotanaka
LogicGrowsOnTrees60.0a parallel implementation of logic programming using distributed tree exploration (benchmark, bsd3, control, distributed-computing, library, logic, parallelism)GregoryCrosswhite
LogicGrowsOnTrees-MPI30.0an adapter for LogicGrowsOnTrees that uses MPI (bsd3, control, distributed-computing, library, logic, parallelism)GregoryCrosswhite
LogicGrowsOnTrees-network70.0an adapter for LogicGrowsOnTrees that uses multiple processes running in a network (bsd3, control, distributed-computing, library, logic, parallelism)GregoryCrosswhite
LogicGrowsOnTrees-processes80.0an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism (benchmark, bsd3, control, distributed-computing, library, logic, parallelism)GregoryCrosswhite
LslPlus220.0An execution and testing framework for the Linden Scripting Language (LSL) (bsd3, language, program)RobertGreayer
Lucu300.0HTTP Daemonic Library (library, network, public-domain)MasatakeDaimon
Lykah60.0A static website and blog generator (library, mit, program, web)johannesgerer
MASMGen52.0Generate MASM code from haskell (development, lgpl, library)petercommand
MBot142.5Haskell interface for controlling the mBot educational robot (educational, gpl, library)cfscholl
MC-Fold-DP30.0Folding algorithm based on nucleotide cyclic motifs. (bioinformatics, gpl, library, program)ChristianHoener
MFlow640.0stateful, RESTful web framework (application-server, bsd3, library, web)AlbertoCorona
MHask30.0The category of monads (bsd3, control, library)DanBurton
MSQueue20.0Michael-Scott queue. (bsd3, data, library)julek
MTGBuilder60.0Builds decks out of a meta (mit, program, unclassified)willfancher
MagicHaskeller310.0Automatic inductive functional programmer by systematic search (bsd3, language, library, program)SusumuKatayama
MailchimpSimple30.0Haskell library to interact with Mailchimp JSON API Version 3.0 (bsd3, library, web)dananji9131
MaybeT280.0MaybeT monad transformer (bsd3, control, library)CaleGibbard, DonaldStewart, EricKidd
MaybeT-monads-tf (deprecated in favor of monads-tf)30.0MaybeT monad transformer compatible with monads-tf (deprecated) (bsd3, control, deprecated, library)BenMillwood
MaybeT-transformers30.0MaybeT monad transformer using transformers instead of mtl. (bsd3, control, library)ErikHesselink, SebastiaanVisser
MazesOfMonad160.0Console-based Role Playing Game (bsd3, game, program)JeanPhilippeMoresmau
MeanShift20.0Mean shift algorithm (bsd3, library, math)VilleTirronen
Measure50.0A library for units of measurement (bsd3, data, library)TonyMorris
Mecha10.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)CarterSchonwald
Mechs30.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)CarterSchonwald
MemoTrie4462.0Trie-based memo functions (bsd3, data, library)ConalElliott
MetaHDBC60.0Statically checked database access (database, lgpl, library)MadsLindstroem
MetaObject110.0A meta-object system for Haskell based on Perl 6 (bsd3, development, library, pugs)AudreyTang
Metrics20.0Evaluation metrics commonly used in supervised machine learning (bsd3, library, statistics)BenHamner
Mhailist20.0Haskell mailing list manager (bsd3, network, program)LarsKotthoff
Michelangelo100.0OpenGL for dummies (graphics, library, mit)SwiftsNamesake
MicrosoftTranslator20.0Interface for Microsoft Translator (bsd3, language, library)netogallo
MiniAgda80.0A toy dependently typed programming language with type-based termination. (dependent-types, program)AndreasAbel
MissingH6102.5Large utility library (bsd3, library, unclassified)JohnGoerzen, davean
MissingK160.0Useful types and definitions missing from other libraries (bsd3, development, library)IvanPerez, keera_studios_ci
MissingM50.0findM and other missing 'M's (bsd3, control, library)DylanJust
MissingPy100.0Haskell interface to Python (library, mit, unclassified)JohnGoerzen, MattBrown
Modulo90.0Modular arithmetic via Numeric-Prelude (gpl, library, math)NikolayMurzin
Moe60.0A FRP library based on signal functions. (bsd3, frp, library, program)XinyuJiang
MoeDict110.0Utilities working with JSON dataset (library, public-domain, text)AudreyTang
MonadCatchIO-mtl (deprecated in favor of exceptions)200.0Monad-transformer version of the Control.Exception module (bsd3, control, deprecated, library)DanielGorin
MonadCatchIO-mtl-foreign (deprecated)20.0Polymorphic combinators for working with foreign functions (bsd3, control, deprecated, library)AntoineLatter
MonadCatchIO-transformers (deprecated in favor of exceptions)870.0Monad-transformer compatible version of the Control.Exception module (bsd3, control, deprecated, library)AriePeterson
MonadCatchIO-transformers-foreign (deprecated)20.0Polymorphic combinators for working with foreign functions (bsd3, control, deprecated, library)AntoineLatter
MonadCompose180.0Methods for composing monads. (bsd3, library, monad)JamesCandy
MonadLab50.0Automatically generate layered monads (bsd3, library, monads, program)AdamProcter
MonadPrompt1170.0MonadPrompt, implementation & examples (bsd3, control, library)CaleGibbard, JamesCook, RyanIngram
MonadRandom31860.0Random-number generation monad. (bsd3, control, library)BrentYorgey, CaleGibbard, EricKidd, LukePalmer, PaoloVeronelli, PatrickPalka
MonadRandomLazy100.0Lazy monad for psuedo random-number generation. (bsd3, control, library)NormanRamsey
MonadStack30.0Generalizing lift to monad stacks (bsd2, control, library)bhurt
Monadius210.02-D arcade scroller (game, gpl, program)GwernBranwen, HideyukiTanaka
Monaris130.0A simple tetris clone (bsd3, game, program)FumiakiKinoshita
Monatron70.0Monad transformer library with uniform liftings (bsd3, control, library)TomSchrijvers
Monatron-IO20.0MonadIO instances for the Monatron transformers. (bsd3, control, library)TobiasBrandt
Monocle60.0Symbolic computations in strict monoidal categories with LaTeX output. (bsd3, library, math)OsmanBineev
MorseCode120.0Morse code (gpl, library, text)AndyStewart
MuCheck190.0Automated Mutation Testing (gpl, library, testing)RahulGopinath
MuCheck-HUnit50.0Automated Mutation Testing for HUnit tests (gpl, library, program, testing)RahulGopinath
MuCheck-Hspec120.0Automated Mutation Testing for Hspec tests (gpl, library, program, testing)RahulGopinath
MuCheck-QuickCheck60.0Automated Mutation Testing for QuickCheck tests (gpl, library, program, testing)RahulGopinath
MuCheck-SmallCheck60.0Automated Mutation Testing for SmallCheck tests (gpl, library, program, testing)RahulGopinath
Munkres110.0Munkres' assignment algorithm (hungarian method) (algorithms, bsd3, library)BalazsKomuves
Munkres-simple60.0Simple and typesafe layer over the Munkres package. (algorithms, bsd3, library)ScrambledEggs
MusicBrainz650.0interface to MusicBrainz XML2 and JSON web services (gpl, library, network)ClintAdams
MusicBrainz-libdiscid110.0Binding to libdiscid by MusicBrainz (audio, ffi, lgpl, library, sound)AndreTwupack
MutationOrder60.0Most likely order of mutation events in RNA (bioinformatics, gpl, library, program)ChristianHoener
MyPrimes30.0Generate all primes (benchmark, data, library, mit, program)afonsomatos
NGrams20.0Simple application for calculating n-grams using Google. (bsd3, natural-language-processing, program)JustinBailey
NMap100.0A transparent nested Map structure (data, lgpl, library)ACastello
NTRU50.0NTRU Cryptography (cryptography, gpl, library, math)mikewest
NXT210.0A Haskell interface to Lego Mindstorms NXT (lgpl, library, program, robotics)MitarMilutinovic
NXTDSL120.0Generate NXC Code from DSL (bsd3, compilers-interpreters, language, library, program)AlexanderThiemann
NameGenerator30.0A name generator written in Haskell (gpl, library, text)pommicket
NanoProlog140.0Very small interpreter for a Prolog-like language (bsd3, language, library, program)DoaitseSwierstra, JurrienStutterheim, joaopizani
NaturalLanguageAlphabets150.0Simple scoring schemes for word alignments (benchmark, bsd3, library, natural-language-processing)ChristianHoener
NaturalSort (deprecated)60.0Natural sorting for strings (bsd3, deprecated, text)JoachimFasting
NearContextAlgebra50.0Context Algebra of near (bsd3, math, program)jhahn
Neks40.0Simple networked key/value store (database, library, mit, program)wyager
NestedFunctor40.0Nested composition of functors with a type index tracking nesting. (bsd3, data, library)kwf
NestedSampling90.0A port of John Skilling's nested sampling C code to Haskell. (gpl, library, statistics)IssacTrotts
NetSNMP300.0Bindings for net-snmp's C API for clients (bsd3, library, network)JohnDorsey, PavloKerestey
Network-NineP180.0High-level abstraction over 9P protocol (library, network, program)SergeyAlirzaev
NewBinary40.0A binary I/O library (data, library)JeremyShaw
NineP80.09P2000 in pure Haskell (bsd3, data, library)DaveLeimbach, SergeyAlirzaev
Ninjas30.0Ninja game (bsd3, game, program)EricMertens
NoHoed190.0Placeholder package to preserve debug ability via conditional builds (bsd3, debugging, library)PepeIborra
NoSlow50.0Microbenchmarks for various array libraries (bsd3, development, profiling, program)RomanLeshchinskiy
NoTrace212.0Remove all the functions come from Debug.Trace after debugging (development, library, mit)CindyLinz
Noise150.0A Haskell coherent noise generator based on libnoise (bsd3, graphics, library, math, noise)HugoGomes
Nomyx (deprecated in favor of nomyx-server)260.0A Nomic game in haskell (bsd3, deprecated, game, program)CorentinDupont
Nomyx-Core140.0A Nomic game in haskell (bsd3, game, library)CorentinDupont
Nomyx-Language300.0Language to express rules for Nomic (bsd3, language, library)CorentinDupont
Nomyx-Rules (deprecated in favor of Nomyx-Language)50.0Language to express rules for Nomic (bsd3, deprecated, language, library)CorentinDupont
Nomyx-Web100.0Web gui for Nomyx (bsd3, game, library)CorentinDupont
NonEmpty60.0Library providing a non-empty list datatype, and total functions operating on it (bsd3, data, library)RobinGreen
NonEmptyList (deprecated in favor of semigroups)110.0A list with a length of at least one. (bsd3, data, deprecated, library)TonyMorris
NumInstances3380.0Instances of numeric classes for functions and tuples (bsd3, data, library)ConalElliott
NumLazyByteString (deprecated)70.0Num, Enum, Eq, Integral, Ord, Real, and Show instances for Lazy ByteStrings (bsd3, data, deprecated, library)ThomasDuBuisson
NumberSieves100.0Number Theoretic Sieves: primes, factorization, and Euler's Totient (bsd3, library, math)LeonSmith
NumberTheory160.0A library for number theoretic computations, written in Haskell. (gpl, library, math)cfredric
Numbers130.0An assortment of number theoretic functions (algorithms, lgpl, library, number-theory)AdrianNeumann
Nussinov7860.0Nussinov78 using the ADPfusion library. (bioinformatics, gpl, library, program)ChristianHoener
Nutri20.0A little library to calculate nutrition values of food items. (library, public-domain, utils)frosch03
OGL110.0A context aware binding for the OpenGL graphics system (bsd3, graphics, library)NealAlexander
OSM130.0Parse OpenStreetMap files (bsd3, library, utils)ThomasDuBuisson, TonyMorris
OTP20.0HMAC-Based and Time-Based One-Time Passwords (cryptography, library, mit)ArtemLeshchev
Object80.0Object oriented programming for haskell using multiparameter typeclasses. (apache, control, data, library)yokto
ObjectIO60.0 (bsd3, library, unclassified)
ObjectName2160.0Explicitly handled object names (bsd3, data, library)SvenPanne
Obsidian60.0Embedded language for GPU Programming (bsd3, language, library)JoelSvensson
Octree210.0Simple unbalanced Octree for storing data about 3D points (bsd3, data, library)MichalGajda
OddWord110.0Provides a wrapper for deriving word types with fewer bits. (bsd3, data, library)RobinKay
Omega210.0Integer sets and relations using Presburger arithmetic (bsd3, data, library)ChristopherRodrigues
OnRmt50.0Text UI library for performing parallel remote SSH operations (bsd3, library, program, system)KevinQuick
OneTuple10730.0Singleton Tuple (bsd3, library, unclassified)JohnDorsey
Only6570.0The 1-tuple type or single-value "collection" (bsd3, data, library)HerbertValerioRiedel
OpenAFP280.0IBM AFP document format parser and generator (data, library, public-domain)AudreyTang
OpenAFP-Utils200.0Assorted utilities to work with AFP data streams (data, program, public-domain)AudreyTang
OpenAL770.0A binding to the OpenAL cross-platform 3D audio API (bsd3, library, sound)AndrewMiller, BenFoppa, SvenPanne
OpenCL210.0Haskell high-level wrapper for OpenCL (bsd3, ffi, gpu, graphics, library)LuisCabellos
OpenCLRaw40.0The OpenCL Standard for heterogenous data-parallel computing (bsd3, graphics, library)JeffersonHeard
OpenCLWrappers100.0The OpenCL Standard for heterogenous data-parallel computing (bsd3, ffi, library)EmilKarlson
OpenGL4340.0A binding for the OpenGL graphics system (bsd3, graphics, library)JasonDagit, SvenPanne
OpenGLCheck10.0Quickcheck instances for various data structures. (bsd3, graphics, library)ThomasDavie
OpenGLRaw2880.0A raw binding for the OpenGL graphics system (bsd3, graphics, library)JasonDagit, SvenPanne
OpenGLRaw21 (deprecated)100.0The intersection of OpenGL 2.1 and OpenGL 3.1 Core (deprecated, graphics, library)JakeMcArthur
OpenSCAD160.0ADT wrapper and renderer for OpenSCAD models. (bsd3, graphics, library)MikeMeyer
OpenVG150.0OpenVG (ShivaVG-0.2.1) binding (bsd3, graphics, library)StephenTetley
OpenVGRaw60.0Raw binding to OpenVG (ShivaVG-0.2.1 implementation). (bsd3, graphics, library)StephenTetley
Operads130.0Groebner basis computation for Operads. (bsd3, library, math)MikaelVejdemoJohansson
OptDir400.0The OptDir type for representing optimization directions. (bsd3, data, library, optimisation, optimization)MasahiroSakai
OrPatterns20.0A quasiquoter for or-patterns (bsd3, development, library)AdamVogt
OrchestrateDB70.0Unofficial Haskell Client Library for the API (bsd3, database, library)dwd31415
OrderedBits490.0Efficient ordered (by popcount) enumeration of bits (benchmark, bsd3, data, library)ChristianHoener
Ordinals80.0Ordinal arithmetic (bsd3, library, math)KiYungAhn
PArrows70.0Arrow parser combinators similar to Parsec (bsd3, library, parsing)GwernBranwen
PBKDF2 (deprecated in favor of pbkdf, scrypt, bcrypt)150.0Make password-based security schemes more secure. (bsd3, cryptography, deprecated, library)AdamBergmark, ErikHesselink, JeremyShaw, ThomasHartman
PCLT (deprecated)70.0Extension to Show: templating, catalogizing, languages, parameters, etc. (deprecated, lgpl, library, text)AndreySisoyev
PCLT-DB (deprecated)20.0An addon to PCLT package: enchance PCLT catalog with PostgreSQL powers. (database, deprecated, lgpl, library)AndreySisoyev
PDBtools90.0A library for analysis of 3-D protein coordinates (bioinformatics, gpl, library)GrantRotskoff
PPrinter50.0A generic derivable Haskell pretty printer (bsd3, generics, library, pretty-printer, text)iamzhenyi
PSQueue520.0Priority Search Queue (bsd3, data-structures, library)ScottDillard
PTQ270.0An implementation of Montague's PTQ. (lgpl, natural-language-processing, program)MasahiroSakai
PUH-Project40.0This is a package which includes Assignments, Email, User and Reviews modules for Programming in Haskell course. (bsd3, data, library)att
PageIO50.0Page-oriented extraction and composition library (bsd3, library, program, text)AudreyTang
Paillier40.0a simple Paillier cryptosystem (bsd3, library, math)onemouth
PandocAgda30.0Pandoc support for literate Agda (bsd3, dependent-types, library, program)PeterDivianszky
Paraiso160.0a code generator for partial differential equations solvers. (bsd3, language, library)TakayukiMuranushi
Parry80.0A proven synchronization server for high performance computing. (gpl, library, parry)pmeunier
ParsecTools390.0Parsec combinators for more complex objects. (gpl, library, parsing)ChristianHoener
ParserFunction (deprecated in favor of attoparsec)140.0Parse and evaluate mathematical expressions. (bsd3, deprecated, library, math, parsing)EnzoHaussecker
PartialTypeSignatures60.0emulate partial type signatures with template haskell (bsd3, development, library)AdamVogt
PasswordGenerator20.0Simple library for generating passwords (cryptography, library, mit)VictorDenisov
PastePipe150.0CLI for pasting to (gpl, library, program, utils)MateuszKowalczyk, RoganCreswick
PathTree70.0A tree used to merge and maintain paths (bsd3, data, library)pjrt
Pathfinder190.0Relational optimiser and code generator (bsd3, database, ffi, library)GeorgeGiorgidze, JeroenWeijers, AlexUlrich
Peano90.0simple Peano numbers (bsd3, data, library)AndrasSlemmer, FrancescoMazzoli
PeanoWitnesses20.0GADT type witnesses for Peano-style natural numbers. (bsd3, data, library)kwf
PerfectHash160.0A perfect hashing library for mapping bytestrings to values. (bsd3, data, data-structures, library)MarkWotton
PermuteEffects50.0Permutations of effectful computations (bsd3, control, library)MartijnVanSteenbergen
Phsu50.0Personal Happstack Server Utils (gpl, program, web)utkarshl
Pipe (deprecated)160.0Process piping library (bsd3, deprecated, library, system)MattiNiemenmaa
Piso160.0Partial isomorphisms (bsd3, data, library)MartijnVanSteenbergen
PlayHangmanGame70.0Play Hangman Game (bsd3, game, program)HaishengWu
PlayingCards30.0Playing cards api (bsd3, game, library)dillonhuff
Plot-ho-matic760.0Real-time line plotter for generic data (bsd3, graphics, library)GregHorn
PlslTools20.0So far just a lint like program for PL/SQL. Diff and refactoring tools are planned (bsd3, pl-sql-tools, program)LarryLayland
Plural70.0Pluralize English words (gpl, language, library)AndyStewart
Pollutocracy60.0An imaginary world (game, gpl, program)IsaacDupree
PortFusion140.0high-performance distributed reverse / forward proxy & tunneling for TCP (gpl, network, program, system)CetinSert
PortMidi990.0A binding for PortMedia/PortMidi (bsd3, library, sound)PaulLiu
PostgreSQL60.0Thin wrapper over the C postgresql library (database, library)IanLynagh
PrimitiveArray690.0Efficient multidimensional arrays (bsd3, data, library)ChristianHoener
PrimitiveArray-Pretty140.0Pretty-printing for primitive arrays (bsd3, data, library)ChristianHoener
Printf-TH10.0 (lgpl, library, utils)MarcWeber
PriorityChansConverger60.0Read single output from an array of inputs - channels with priorities (concurrency, lgpl, library)AndreySisoyev
ProbabilityMonads10.0Probability distribution monads. (bsd3, control, library)EricKidd
PropLogic100.0Propositional Logic (algorithms, bsd3, library, logic, program)DavidFox
Proper130.0An implementation of propositional logic in Haskell (bsd3, library, program, unclassified)dillonhuff
ProxN60.0Proximity sets in N dimensions (bsd3, library, math)AndrasSlemmer
Pugs320.0A Perl 6 Implementation (bsd3, language, program, pugs)AudreyTang, JeffShaw
Pup-Events20.0A networked event handling framework for hooking into other programs. (gpl, library, networking, program, pup-events)DanielWilson
Pup-Events-Client50.0A networked event handling framework for hooking into other programs. (gpl, library, networking, pup-events)DanielWilson
Pup-Events-Demo60.0A networked event handling framework for hooking into other programs. (demo, gpl, networking, program, pup-events)DanielWilson
Pup-Events-PQueue60.0A networked event handling framework for hooking into other programs. (gpl, library, networking, pup-events)DanielWilson
Pup-Events-Server110.0A networked event handling framework for hooking into other programs. (gpl, library, networking, pup-events)DanielWilson
QIO130.0The Quantum IO Monad is a library for defining quantum computations in Haskell (bsd3, library, quantum)AlexanderGreen
QLearn32.0A library for fast, easy-to-use Q-learning. (data, library, mit)dpandya
QuadEdge70.0QuadEdge structure for representing triangulations (bsd3, data, library)NealAlexander
QuadTree70.0QuadTree library for Haskell, with lens support. (bsd3, data, game, library)Kron
QuasiText170.0A QuasiQuoter for Text. (bsd3, library, text)MikeLedger
Quelea22.0Programming with Eventual Consistency over Cassandra. (bsd3, experimental, library)gowtham
QuickAnnotate70.0Annotation Framework (bsd3, development, library, program)ShayanNajd
QuickCheck145472.5Automatic testing of Haskell programs (bsd3, library, testing)DonaldStewart, KoenClaessen, NickSmallbone, SimonMarlow
QuickCheck-GenT150.0A GenT monad transformer for QuickCheck library. (library, mit, testing)NikitaVolkov
QuickCheck-safe430.0Safe reimplementation of QuickCheck's core (library, mit, testing)BertramFelgenhauer
QuickCheckVariant170.0Generator of "valid" and "invalid" data in a type class (gpl, library, testing)sanjorgek
QuickPlot40.0Quick and easy data visualization with Haskell (gpl, graphics, library)tepf
Quickson (deprecated in favor of aeson-quick)90.0Quick JSON extractions with Aeson (bsd3, deprecated, json, library, text, web)ssadler
R-pandoc60.0A pandoc filter to express R plots inside markdown (bsd3, library, program, text)CorentinDupont
RANSAC110.0The RANSAC algorithm for parameter estimation. (bsd3, library, math, numerical)AnthonyCowley
RBTree120.0Pure haskell Red-Black-Tree implemetation (bsd3, data-structures, library)XingboWu
RESTng40.0A framework for writing RESTful applications. (library, web)SergioUrinovsky
RFC1751140.0RFC-1751 library for Haskell (data, library, public-domain)xenog
RJson180.0A reflective JSON serializer/parser. (bsd3, library, text)AlexDrummond
RMP40.0Binding to code that controls a Segway RMP (bsd3, library, program, robotics, system)NoamLewis
RNAFold340.0RNA secondary structure prediction (bioinformatics, gpl, library, program)ChristianHoener
RNAFoldProgs40.0RNA secondary structure folding (bioinformatics, gpl, program)ChristianHoener
RNAdesign80.0Multi-target RNA sequence design (bioinformatics, gpl, library, program)ChristianHoener
RNAdraw50.0Draw RNA secondary structures (bioinformatics, gpl, library, program)ChristianHoener
RNAlien272.0Unsupervized construction of RNA family models (bioinformatics, gpl, library, program)FlorianEggenhofer
RNAwolf170.0RNA folding with non-canonical basepairs and base-triplets. (bioinformatics, gpl, library, program)ChristianHoener
RSA4300.0Implementation of RSA, using the padding schemes of PKCS#1 v2.1. (bsd3, codec, cryptography, library)AdamWick
Raincat170.0A puzzle game written in Haskell with a cat in lead role (bsd3, game, program)MikhailPobolovets, SergeiTrofimovich
Random12380.0Haskell port of Random123 library (benchmark, library, mit, random)BogdanOpanchuk
RandomDotOrg (deprecated)60.0Interface to (deprecated, library, other, public-domain)AustinSeipp
Randometer80.0Randomness intuition trainer (mit, personalgrowth, program)So8res
Range10.0Data structure for managing ranges (bsd3, data, library)ThomasEding
Ranged-sets292.0Ranged sets for Haskell (bsd3, data, library)PaulJohnson
Ranka10.0HTTP to XMPP omegle chats gate. (gpl, network, program)OlegIvanov
Rasenschach140.0Soccer simulation (bsd3, game, program)MartinWoehrle
Rasterific552.0A pure haskell drawing engine. (bsd3, graphics, library)VincentBerthoux
ReadArgs950.0Simple command line argument parsing (bsd3, command-line, library, program)NoahEasterly
Redmine170.0Library to access Redmine's REST services (library, mit, network, web)cstpierre
Ref30.0Generic Mutable Ref Abstraction Layer (bsd3, data, library)CarterSchonwald
RefSerialize370.0Write to and read from ByteStrings maintaining internal memory references (bsd3, data, database, library, parsing)AlbertoCorona
Referees10.0A utility for computing distributions of material to review among reviewers. (gpl, library, program, utils)PabloCouto
RepLib272.0Generic programming library with representation types (bsd3, generics, library)BrentYorgey, ChrisCasinghino, sweirich
ReplicateEffects80.0Composable replication schemes of applicative functors (bsd3, control, library)MartijnVanSteenbergen
ReviewBoard90.0Haskell bindings to ReviewBoard (bsd3, development, library, program)AdamSmyczek
RichConditional20.0Tiny library to replace classic if/else (control, library, mit)alexvieth
Rlang-QQ (deprecated in favor of inline-r)180.0quasiquoter for inline-R code (bsd3, deprecated, development, library)AdamVogt
RollingDirectory40.0Limits the size of a directory's contents (file-manager, gpl, program, tools)FalcoHirschenberger
RoyalMonad80.0All hail the Royal Monad! (bsd3, control, library)AtzeVanDerPloeg
RtMidi102.0 (library, mit, sound)kohlrabi
RxHaskell80.0Reactive Extensions for Haskell (frp, library, mit)JustinSpahrSummers
SBench50.0A benchmark suite for runtime and heap measurements over a series of inputs. (bsd3, library, testing)DanielSeidel
SCalendar (deprecated in favor of scalendar)211.25This is a library for handling calendars and resource availability based on the "top-nodes algorithm" and set operations. (deprecated, library, mit, time)sebasHack
SConfig (deprecated)72.0A simple config library (configuration, deprecated, library, mit)fgaz
SDL1621.5Binding to libSDL (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-gfx210.0Binding to libSDL_gfx (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-image280.0Binding to libSDL_image (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-mixer300.0Binding to libSDL_mixer (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-mpeg60.0Binding to the SMPEG library (bsd3, foreign-binding, library)AudreyTang
SDL-ttf250.0Binding to libSDL_ttf (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL2-ttf (deprecated in favor of sdl2-ttf)30.0Binding to libSDL-ttf (deprecated, foreign-binding, library, mit)OmerAgacan
SFML150.0SFML bindings (game, library, mit)AlfredoDiNapoli, sulami, ppelleti
SFML-control40.0Higher level library on top of SFML (graphics, library, mit)AlfredoDiNapoli
SFont (deprecated)20.0SFont SDL Bitmap Fonts (bsd3, deprecated, graphics, library)LiamOConnorDavis
SG60.0Small geometry library for dealing with vectors and collision detection (bsd3, data, library, math)NeilBrown
SGdemo70.0An example of using the SG and OpenGL libraries (gpl, graphics, program)NeilBrown
SGplus90.0(updated) Small geometry library for dealing with vectors and collision detection (bsd3, data, library, math)donomii
SHA41560.0Implementations of the SHA suite of message digest functions (bsd3, codec, cryptography, library)AdamWick, RaphaelJavaux
SHA2160.0Fast, incremental SHA hashing for bytestrings (bsd3, cryptography, library)SveinOveAas
SMTPClient130.0A simple SMTP client library (bsd3, library, network)StephenBlackheath
SNet20.0Declarative coördination language for streaming networks. (language, lgpl, library)MerijnVerstraaten
SQLDeps20.0Calculate db-data dependencies of functions (bsd3, database, library)AlexanderThiemann
SSTG502.0STG Symbolic Execution (bsd3, library, program, web)AntonXue
STL190.0STL 3D geometry format parsing and pretty-printing (bsd3, graphics, library)bergey
STMonadTrans8350.0A monad transformer version of the ST monad (bsd3, library, monads)JosefSvenningsson
SVG2Q10.0Code generation tool for Quartz code from a SVG. (bsd3, parsing, program)JanGreve
SVGFonts11080.0Fonts from the SVG-Font format (bsd3, graphics, library)BrentYorgey, JanBracker, RyanYates, TillmannVogt, jeffreyrosenbluth, bergey
SVGPath120.0Parsing the path command of SVG (bsd3, graphics, library)RohanDrape, TillmannVogt
SWMMoutGetMB50.0A parser for SWMM 5 binary .OUT files (environment, hydrology, lgpl, library, water)siddhanathan
SableCC2Hs60.0Generate a parser (in Haskell) with the SableCC parser generator. (bsd3, library, parsing, program)MarcFontaine
Safe (deprecated in favor of safe)70.0Library for safe (pattern match free) functions (bsd3, deprecated, library, unclassified)
SafeSemaphore8880.0Much safer replacement for QSemN, QSem, and SampleVar (bsd3, concurrency, library)ChrisKuklewicz
Salsa90.0A .NET Bridge for Haskell (.net, bsd3, foreign, library)AndrewAppleyard, TimMatthews
Saturnin40.0Saturnin CI / Job System (application-server, bsd3, library, program)yac
SciFlow140.0Scientific workflow management system (control, library, mit)kaizhang
ScratchFs40.0Size limited temp filesystem based on fuse (gpl, program, system)FalcoHirschenberger
Scurry40.0A cross platform P2P VPN application built using Haskell. (bsd3, network, program)JohnVanEnk
SegmentTree80.0Data structure for querying the set (or count) of intervals covering given point (bsd3, data, library)AlexandruScvortov, DmitryAstapov
SelectSequencesFromMSA140.0SelectSequences is a tool for selection of a represenative subset of sequences from a multiple sequence alignment in clustal format. (bioinformatics, gpl, library, program)FlorianEggenhofer
Semantique70.0Command-line tool for maintaining the Semantique database. (program, public-domain, system)DavidHimmelstrup
Semigroup130.0A semigroup (bsd3, data, library)TonyMorris
SeqAlign (deprecated in favor of seqalign)70.0Sequence Alignment (bsd3, deprecated, library, unclassified)rcallahan
SessionLogger20.0Easy Loggingframework (lgpl, library, logging)GeroKriependorf
ShellCheck13140.0Shell script analysis tool (gpl, library, program, static-analysis)koala_man, vidarhol
Shellac150.0A framework for creating shell envinronments (bsd3, library, user-interfaces)RobertDockins
Shellac-compatline90.0"compatline" backend module for Shellac (bsd3, library, user-interfaces)RobertDockins
Shellac-editline60.0Editline backend module for Shellac (bsd3, library, user-interfaces)RobertDockins
Shellac-haskeline120.0Haskeline backend module for Shellac (bsd3, library, user-interfaces)JudahJacobson, RobertDockins
Shellac-readline100.0Readline backend module for Shellac (bsd3, library, user-interfaces)RobertDockins
ShortestPathProblems50.0grammars for TSP and SHP (bsd3, data, library)ChristianHoener
ShowF70.0Show for * -> * (bsd3, library, text)ConalElliott
Shrub60.04-way trie fuzzy search (bsd3, library, unclassified)rcallahan
Shu-thing120.0A vector shooter game (bsd3, game, program)AlanHawkins, GwernBranwen
SimpleAES160.0Fast AES encryption/decryption for bytestrings (bsd3, cryptography, library)DavidHimmelstrup
SimpleEA110.0Simple evolutionary algorithm framework. (ai, bsd3, library)ErlendHamberg
SimpleGL (deprecated in favor of definitive-graphics)60.0A Simple Graphics Library from the SimpleH framework. (bsd3, deprecated, graphics, library)MarcCoiffier
SimpleH (deprecated in favor of definitive-base)50.0A light, clean and powerful Haskell utility library (deprecated, library, prelude)MarcCoiffier
SimpleLog40.0Simple, configurable logging (bsd3, library, system)AndrasSlemmer
SimpleServer120.0A simple static file server, for when apache is overkill (library, mit, program, web)AnupamJain
SimpleTableGenerator100.0Simple table generator (gpl, library, text)klntsky
Sit150.0Prototypical type checker for Type Theory with Sized Natural Numbers (dependent-types, program)AndreasAbel
SizeCompare60.0Fast size comparison for standard containers. (data, gpl, library)BramSchuur
Slides110.0Generate slides from Haskell code (graphics, library, mit)darwin226
Smooth10.0A tiny, lazy SMT solver (bsd3, library, math)dillonhuff
SmtLib20.0Library for parsing SMTLIB2 (formal-methods, library, mit)roger62
Snusmumrik (deprecated)10.0E-library directory based on FUSE virtual file system. (bsd3, deprecated, program, text)SergeyAstanin
SoOSiM50.0Abstract full system simulator (bsd3, library, simulation)ChristiaanBaaij
SoccerFun230.0Football simulation framework for teaching functional programming (ai, bsd3, education, game, library, program)JanRochel
SoccerFunGL80.0OpenGL UI for the SoccerFun framework (ai, bsd3, education, game, library, program)JanRochel
Sonnex60.0Sonnex is an alternative to Soundex for french language (gpl, library, natural-language-processing, text)zigazou
SourceGraph320.0Static code analysis using graph-theoretic techniques. (development, gpl, program)IvanMiljenovic
Southpaw40.0Assorted utility modules (library, mit, utilities)SwiftsNamesake
SpaceInvaders170.0Video game (bsd3, game, program)GeorgeGiorgidze, IvanPerez, keera_studios_ci
SpacePrivateers40.0Simple space pirate roguelike (bsd3, game, program)tuturto
SpinCounter20.0Lock free Spin Counter (bsd3, data, library)julek
Spintax200.0Random text generation based on spintax (bsd3, library, text)MichelBoucey
Spock1032.5Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-api140.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-api-ghcjs60.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-api-server140.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-auth (deprecated)50.0Provides authentification helpers for Spock (bsd3, deprecated, library, web)AlexanderThiemann
Spock-core360.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-digestive130.0Digestive functors support for Spock (library, mit, web)AlexanderThiemann
Spock-lucid230.0Lucid support for Spock (bsd3, library, web)Artyom
Spock-worker200.0Background workers for Spock (library, mit, web)AlexanderThiemann
SpreadsheetML80.0Write support for Excel's SpreadsheetML format (bsd3, library, text)JasonDagit
Sprig (deprecated)70.0Binding to Sprig (bsd3, deprecated, foreign-binding, library)LiamOConnorDavis
Stack332.25Stack data structure (bsd3, data-structures, library)rwlock
Stasis20.0A simple MVCC like library (bsd3, concurrency, library, program)zcourts
StateVar58860.0State variables (bsd3, data, library)EdwardKmett, SvenPanne
StateVar-transformer70.0State variables (bsd3, data, library)seagull
StatisticalMethods70.0Collection of useful statistical methods. (gpl, library, statistics)ChristianHoener
StockholmAlignment440.0Libary for Stockholm aligmnent format (bioinformatics, gpl, library)FlorianEggenhofer
Stomp80.0Client library for Stomp brokers. (bsd3, library, network)VitaliyRukavishnikov
Strafunski-ATermLib50.0An abstract data type designed for the exchange of tree-like data structures (bsd3, data, library)JamesKoppel
Strafunski-Sdf2Haskell40.0Converts SDF to Haskell (bsd3, language, program)JamesKoppel
Strafunski-StrategyLib280.0Library for strategic programming (bsd3, generics, library)AlanZimmerman, JamesKoppel
StrappedTemplates60.0General purpose templates in haskell (bsd3, library, text)hansonkd
StrategyLib60.0 (generics, library)SamuelBronson
Stream1410.0A library for manipulating infinite lists. (bsd3, data, library)WouterSwierstra
StrictBench70.0Benchmarking code through strict evaluation (gpl, library, testing)RemcoNiemeijer
StringUtils180.0String manipulation utilities (lgpl, library, text)CIX_68
SuffixStructures20.0Suffix array construction (benchmark, bsd3, data, data-structures, library, program)ChristianHoener
SybWidget60.0Library which aids constructing generic (SYB3-based) widgets (gui, lgpl, library)MadsLindstroem
SyntaxMacros (deprecated in favor of murder)40.0Syntax Macros in the form of an EDSL (deprecated, development, lgpl, library)MarcosViera
Sysmon90.0Sybase 15 sysmon reports processor (bsd3, database, library)VitaliyRukavishnikov
TBC90.0Testing By Convention (bsd3, library, program, testing)PeterGammie
TBit50.0Utilities for condensed matter physics tight binding calculations. (bsd3, library, science)danielsmw
TCache620.0A Transactional cache with user-defined persistence (bsd3, data, database, library)AlbertoCorona
THEff140.0TH implementation of effects. (bsd3, control, effect, library, th)kolodeznydiver
TTTAS190.0Typed Transformations of Typed Abstract Syntax (language, lgpl, library)MarcosViera
TV200.0Tangible Values -- composable interfaces (bsd3, interfaces, library)ConalElliott
TYB80.0Template Your Boilerplate - a Template Haskell version of SYB (bsd3, generics, library)MichaelAdams, ThomasDuBuisson
TableAlgebra70.0Ferry Table Algebra (bsd3, database, library)JeroenWeijers
Tables40.0A client for Quill databases (bsd3, database, program)NatePisarski
Tablify90.0Tool to render CSV into tables of various formats (bsd3, program, text)DanielLyons
Tahin70.0Tahin Password Generator (bsd3, library, password, program)mtesseract
Tainted100.0Tainted type, and associated operations (bsd3, control, data, library, monads, trans)RossMeikleham
Takusen212.0Database library with left-fold interface, for PostgreSQL, Oracle, SQLite, ODBC. (bsd3, database)AlistairBayley, DonaldStewart, JasonDagit
Tape20.0Bidirectionally infinite streams, akin to the tape of a Turing machine. (bsd3, data, library)kwf
Taxonomy250.0Libary for parsing, processing and vizualization of taxonomy data (bioinformatics, gpl, library)FlorianEggenhofer
TaxonomyTools90.0Tool for parsing, processing, comparing and visualizing taxonomy data (bioinformatics, gpl, program)FlorianEggenhofer
TeX-my-math60.0Render general Haskell math to LaTeX. Or: math typesetting with high signal-to-noise–ratio. (gpl, library, math)leftaroundabout
TeaHS (deprecated)40.0TeaHS Game Creation Library (bsd3, deprecated, game, library)LiamOConnorDavis
Tensor240.0Tensor data types (bsd3, data, library)SvenPanne
TernaryTrees300.0Efficient pure ternary tree Sets and Maps (bsd3, data-structures, library, program)AlexMason
TestExplode90.0Generates testcases from program-snippets (lgpl, library, testing)hjg
Theora60.0 (gpl, library, unclassified)PierreEtienneMeunier
Thingie (deprecated in favor of Hieroglyph)90.0Purely functional 2D drawing (bsd3, deprecated, graphics, library)JeffersonHeard
ThreadObjects70.0Mutable objects that reside in their own threads. (concurrency, gpl, library)TimothyHobbs
Thrift170.0Haskell bindings for the Apache Thrift RPC system (foreign, library)DonaldStewart, KirkPeterson, OzgunAtaman
Tic-Tac-Toe112.0Tic Tac Toe in your command line! (apache, game, program)2016rshah
TicTacToe80.0A sub-project (exercise) for a functional programming course (bsd3, education, library)TonyMorris
TigerHash20.0TigerHash with C implementation (cryptography, gpl, library)NikolayOrlyuk
TimePiece70.0A simple tile-based digital clock screen saver (library, program, public-domain, screensaver)AudreyTang
TinyLaunchbury80.0Simple implementation of call-by-need using Launchbury's semantics (bsd3, compilers-interpreters, library)DavidSankel
TinyURL100.0Use TinyURL to compress URLs (bsd3, library, web)ReidBarton
Titim50.0Game for Lounge Marmelade (game, gpl, program)Jefffrey
Top80.0Constraint solving framework employed by the Helium Compiler. (constraints, gpl, library, program)JurriaanHage
Tournament10.0Tournament related algorithms (game, library, mit)EirikAlbrigtsen
TraceUtils110.0Functions that should have been in Debug.Trace (bsd3, development, library)EyalLotem
TransformeR (deprecated)10.0eDSL in R for Safe Variable Transformarion (bsd3, deprecated, dsl, library, program, security, statistics)remy
TransformersStepByStep60.0Tutorial on monad transformers. (bsd3, development, program)MartinGrabmueller
Transhare60.0A library to apply transformation to containers so as to maximize sharing of unchanged subcomponents. (bsd3, data, library)ChrisKuklewicz
TreeCounter20.0Wait-free Tree Counter (bsd3, data, library)julek
TreeStructures50.0A collection of heaps and search trees (bsd3, data-structures, library)BrendanHickey
TreeT70.0Transformer for Data.Tree (control, library, monads, public-domain)RahulGopinath
Treiber70.0Lock free Treiber stack (bsd3, data, library)julek
TrendGraph40.0A simple trend Graph script (graphics, library, public-domain)AlperAYDIN
TrieMap310.0Automatic type inference of generalized tries with Template Haskell. (algorithms, bsd3, library)LouisWasserman
Twofish130.0An implementation of the Twofish Symmetric-key cipher. (bsd3, codec, cryptography, library)RonLeisti
TypeClass60.0Typing speed game (bsd3, game, program)JeanPhilippeMoresmau
TypeCompose1120.0Type composition classes & instances (bsd3, composition, control, library)ConalElliott
TypeIlluminator10.0TypeIlluminator is a prototype tool exploring debugging of type errors/ (bsd3, compilers-interpreters, program)GwernBranwen
TypeNat80.0Some Nat-indexed types for GHC (data, library, mit)alexvieth
TypingTester130.0Command Line Typing speed tester (game, gpl, program)AlanHawkins
UISF250.0Library for Arrowized Graphical User Interfaces. (bsd3, gui, library)dwincort
UMM150.0A small command-line accounting tool (finance, gpl, program)UweHollerbach
URLT (deprecated in favor of web-routes)30.0Library for maintaining correctness of URLs within an application. (bsd3, deprecated, language, library, web)JeremyShaw
URLb90.0DEPRECATED A simple, liberal URL parser. (bsd3, library, text)JasonDusek
UTFTConverter90.0Processing popular picture formats into .c or .raw format in RGB565 (graphics, library, mit, program, text)cirquit
Unique1502.0It provides the functionality like unix "uniq" utility (bsd3, data, library)kapral
Unixutils1040.0A crude interface between Haskell and Unix-like operating systems (bsd3, library, system)DavidFox, JeremyShaw
Unixutils-shadow70.0A simple interface to shadow passwords (aka, shadow.h) (bsd3, library, system)JeremyShaw
Updater100.0Monadic FRP library based on stm (apache, frp, library)yokto
UrlDisp30.0Url dispatcher. Helps to retain friendly URLs in web applications. (bsd3, library, network, web)ArtyomShalkhakov
Useful130.0Some useful functions and shorthands. (bsd3, library, unclassified)DanielHolden
UtilityTM110.0Utility functions that are missing from the standard library (bsd3, development, library)TonyMorris
VKHS580.0Provides access to Vkontakte social network via public API (bsd3, library, program, web)SergeyMironov
Validation (deprecated in favor of validation)30.0A data-type like Either but with an accumulating Applicative (bsd3, data, deprecated, library)TonyMorris
Vec250.0Fixed-length lists and low-dimensional linear algebra. (bsd3, data, library, math)ScottDillard
Vec-Boolean80.0Provides Boolean instances for the Vec package (bsd3, data, library, math)TobiasBexelius
Vec-OpenGLRaw60.0Instances and functions to interoperate Vec and OpenGL. (bsd3, graphics, library, math)ChristopherLaneHinson
Vec-Transform160.0This package is obsolete (bsd3, graphics, library, math)TobiasBexelius
VecN40.0a simple peano-indexed vector type (bsd3, data, library)AndrasSlemmer
Verba80.0A solver for the WordBrain game (game, mit, program)Jefffrey
ViennaRNA-bindings200.0ViennaRNA v2 bindings (bindings, bioinformatics, ffi, library)ChristianHoener
ViennaRNAParser300.0Libary for parsing ViennaRNA package output (bioinformatics, gpl, library)FlorianEggenhofer
Villefort772.0Villefort is a task manager and time tracker written in haskell. (bsd3, library, program, web)ChrisReuter
Vulkan100.0A binding for the Vulkan API (bsd3, graphics, library)SvenPanne
WAVE150.0WAVE audio file IO library (bsd3, data, library, program, sound)BartonMassey
WL500gPControl30.0A simple command line tools to control the Asus WL500gP router (bsd3, network, program, ui)VasylPasternak
WL500gPLib30.0A simple library to access to the WL 500gP router from the Haskell code (bsd3, library, network, program)VasylPasternak
WMSigner10.0WebMoney authentication module (cryptography, data, library, mit)triplepointfive
WURFL (deprecated)30.0Convert the WURFL file into a Parsec parser (bsd3, deprecated, library, web)alpheccar
WXDiffCtrl20.0WXDiffCtrl (bsd3, gui, library, user-interfaces)JeremyODonoghue
WashNGo40.0WASH is a family of EDSLs for programming Web applications in Haskell. (bsd3, library, program, web)MarcWeber
WaveFront80.0Parsers and utilities for the OBJ WaveFront 3D model format (graphics, library, mit)SwiftsNamesake
Weather110.0Library for interacting with the Weather Underground JSON API. (bsd3, library, net)bstamour
WebBits (deprecated in favor of language-ecmascript)220.0JavaScript analysis tools (bsd3, deprecated, language, library)AndreyChudnov, ArjunGuha
WebBits-Html30.0JavaScript analysis tools (language, lgpl, library)ArjunGuha
WebBits-multiplate10.0A Multiplate instance for JavaScript. (language, library, mit)BalazsEndresz
WebCont30.0Continuation based web programming for Happstack (bsd3, library, web)SamAnklesaria
WeberLogic60.0Logic interpreter (bsd3, library, math, program)cameronbwhite
Webrexp50.0Regexp-like engine to scrap web data (bsd3, library, program, utility)VincentBerthoux
Wheb70.0The frictionless WAI Framework (bsd3, library, web)hansonkd
WikimediaParser70.0A parser for wikimedia style article markup. (bsd3, library, parsing)EzekielSmithburg
Win321892.0A binding to part of the Win32 library (bsd3, graphics, system)BenGamari, BryanOSullivan, IanLynagh, TamarChristina
Win32-console20.0Binding to the Win32 console API (bsd3, console, library, user-interfaces)siracusa
Win32-dhcp-server70.0Win32 DHCP Server Management API (bsd3, library, system)MichaelSteele
Win32-errors80.0Alternative error handling for Win32 foreign calls (bsd3, library, system)MichaelSteele
Win32-extras110.0Provides missing Win32 API (bsd3, graphics, library, system)KidoTakahiro
Win32-junction-point70.0Support for manipulating NTFS junction points. (bsd3, library, system)MichaelSteele
Win32-notify2750.0A binding to part of the Win32 library for file notification (bsd3, library, system)GregWeber, MarkDittmer, NiklasBroberg, PepeIborra
Win32-security30.0Haskell bindings to a security-related functions of the Windows API (library, mit, system)anton_dessiatov
Win32-services170.0Windows service applications (bsd3, library, system)MichaelSteele
Win32-services-wrapper50.0Wrapper code for making a Win32 service (bsd3, library, system)GaneshSittampalam
Win32-shortcut40.0Support for manipulating shortcuts (.lnk files) on Windows (bsd3, library, system)lato
Wired80.0Wire-aware hardware description (bsd3, hardware, language, library)EmilAxelsson
WordAlignment60.0Bigram word pair alignments. (gpl, library, linguistics, program)ChristianHoener
WordNet120.0Haskell interface to the WordNet database (bsd3, library, natural-language-processing, text)JoelTaylor, MaxRabkin
WordNet-ghc7480.0Haskell interface to the WordNet database (bsd3, library, natural-language-processing, text)JoelTaylor
Wordlint110.0Plaintext prose redundancy linter. (library, program, text)bgbgbg
Workflow470.0Workflow patterns over a monad for thread state logging & recovery (bsd3, control, library, workflow)AlbertoCorona
WxGeneric70.0Generic (SYB3) construction of wxHaskell widgets (gui, lgpl, library)MadsLindstroem
X114452.0A binding to the X11 graphics library (bsd3, graphics, library)DanielWagner, DonaldStewart, PeterJones, SpencerJanssen
X11-extras100.0Missing bindings to the X11 graphics library (bsd3, graphics, library)DonaldStewart, SpencerJanssen
X11-rm80.0A binding to the resource management functions missing from X11. (bsd3, graphics, library)TroelsHenriksen
X11-xdamage80.0A binding to the Xdamage X11 extension library (bsd3, graphics, library)DonaldStewart, EwanHiggs
X11-xfixes80.0A binding to the Xfixes X11 extension library (graphics, library, mit)ArenOlson
X11-xft2210.0Bindings to the Xft, X Free Type interface library, and some Xrender parts (graphics, lgpl, library)ClemensFruhwirth
X11-xshape80.0A binding to the Xshape X11 extension library (bsd3, graphics, library)DonaldStewart, EwanHiggs
XAttr (deprecated in favor of linux-xattr)80.0Read, set, and list extended attributes (deprecated, gpl, library, system)NicolaSquartini
XInput30.0Bindings for the DirectX XInput library. (bsd3, library, system)ErikCharlebois
XMLParser192.0A library to parse xml (gpl, library, xml)AlanHawkins
XMMS80.0XMMS2 client library. (lgpl, library, network, sound)EvgeniyVodolazskiy
XMPP70.0XMPP library (bsd3, library, network)GregoriKholomyev, OlegIvanov
XSaiga122.0An implementation of a polynomial-time top-down parser suitable for NLP (attribute-grammars, bsd3, library, memoization, natural-language-processing, parsercombinators, parsing, program, text)InBetweenNames
Xauth150.0A binding to the X11 authentication library (bsd3, graphics, library)SpencerJanssen
Xec60.0Gtk command launcher with identicon (bsd3, program, utils)DaikiHanda
XmlHtmlWriter62.0A library for writing XML and HTML (bsd3, language, library)MatthewMirman
Xorshift128Plus30.0Pure haskell implementation of xorshift128plus random number generator. (library, math, public-domain)hkanai
YACPong20.0Yet Another Pong Clone using SDL. (game, mit, program)KorcanHussein
YFrob30.0Yampa-based library for programming robots (bsd3, frp, library, reactivity, yampa)TristanSkudlik
Yablog110.0A simple blog engine powered by Yesod. (bsd3, web)HiromiIshii
YamlReference330.0YAML reference implementation (lgpl, library, program, text)OrenBenKiki
Yampa732.5Library for programming hybrid systems. (bsd3, frp, library, reactivity)GeorgeGiorgidze, IvanPerez, keera_studios_ci
Yampa-core70.0Library for programming hybrid systems. (bsd3, frp, library, reactivity)NikolayOrlyuk
YampaSynth110.0Software synthesizer (bsd3, music, sound)GeorgeGiorgidze, IvanPerez, keera_studios_ci
Yocto (deprecated in favor of yocto)60.0A Minimal JSON Parser & Printer for Haskell (deprecated, library, mit, text)ajg
Yogurt100.0A MUD client library (bsd3, library, network)MartijnVanSteenbergen
Yogurt-Standalone20.0A functional MUD client (bsd3, network, program)MartijnVanSteenbergen
ZEBEDDE (deprecated)30.0Polymer growth simulation method (bsd3, deprecated, library, math)hackrilege
ZFS50.0Oleg's Zipper FS (library, monads, public-domain)GwernBranwen, jkarni
ZMachine60.0A Z-machine interpreter (bsd3, game, program)GwernBranwen
ZipFold100.0Zipping folds (bsd3, data, library)ConalElliott
ZipperAG160.0An implementationg of Attribute Grammars using Functional Zippers (bsd3, experimental, library)prmartins
Zora210.0Graphing library wrapper + assorted useful functions (bsd3, library, unclassified)bgwines
Zwaluw70.0Combinators for bidirectional URL routing (bsd3, library, text)MartijnVanSteenbergen
a5080.0Compare genome assemblies (bioinformatics, gpl, program)KetilMalde
abacate10.0Parser for a language similar to Cucumber's Gherkin (language, library)MarcoSilva
abc-puzzle70.0Generate instances of the ABC Logic Puzzle. (bsd3, game, program)PatrickBahr
abcBridge100.0Bindings for ABC, A System for Sequential Synthesis and Verification (bsd3, data, library)AaronTomb, RobertDockins
abcnotation180.0Haskell representation and parser for ABC notation. (bsd3, library, music)HansHoglund
abeson30.0interconversion between aeson and bson. (data, library, mit)HirotomoMoriwaki
abnf140.0Parse ABNF and generate parsers for the specified document (bsd2, library, text)Xandaros
abstract-deque17810.0Abstract, parameterized interface to mutable Deques. (bsd3, data, library)RyanNewton
abstract-deque-tests60.0A test-suite for any queue or double-ended queue satisfying an interface (bsd3, data, library)RyanNewton
abstract-par17820.0Type classes generalizing the functionality of the 'monad-par' library. (bsd3, control, library, monads, parallelism)RyanNewton
abstract-par-accelerate90.0Provides the class ParAccelerate, nothing more. (bsd3, library, parallelism)RyanNewton
abt70.0Abstract binding trees for Haskell (language, library, mit)JonSterling
ac-machine60.0Aho-Corasick string matching algorithm in Haskell (bsd3, data, library)YutaTaniguchi
ac-machine-conduit30.0Drive Aho-Corasick machines in Conduit pipelines (bsd3, data, library)YutaTaniguchi
accelerate1752.0An embedded language for accelerated array processing (bsd3, compilers-interpreters, concurrency, data, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-arithmetic70.0Linear algebra and interpolation using the Accelerate framework (bsd3, library, math)HenningThielemann
accelerate-bignum120.0Fixed-length large integer arithmetic for Accelerate (benchmark, bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-blas660.0Numeric Linear Algebra in Accelerate (bsd3, library, math)TrevorMcDonell
accelerate-cublas40.0Basic Linear Algebra using native CUBLAS library (benchmark, bsd3, library, math, program)HenningThielemann
accelerate-cuda (deprecated in favor of accelerate-llvm-ptx)290.0Accelerate backend for NVIDIA GPUs (bsd3, compilers-interpreters, concurrency, data, deprecated, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-cufft50.0Accelerate frontend to the CUFFT library (Fourier transform) (bsd3, library, math)HenningThielemann
accelerate-examples510.0Examples using the Accelerate library (bsd3, compilers-interpreters, concurrency, data, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-fft440.0FFT using the Accelerate library (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-fftw30.0Accelerate frontend to the FFTW library (Fourier transform) (bsd3, library, math)HenningThielemann
accelerate-fourier60.0Fast Fourier transform and convolution using the Accelerate framework (benchmark, bsd3, library, math)HenningThielemann
accelerate-fourier-benchmark60.0Compare different implementations of the Fast Fourier Transform (bsd3, math, program)HenningThielemann
accelerate-io580.0Read and write Accelerate arrays in various formats (bsd3, compilers-interpreters, concurrency, data, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-llvm480.0Accelerate backend component generating LLVM IR (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-llvm-native720.0Accelerate backend for multicore CPUs (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-llvm-ptx450.0Accelerate backend for NVIDIA GPUs (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-random (deprecated in favor of mwc-random-accelerate)20.0Generate Accelerate arrays filled with high quality pseudorandom numbers (bsd3, data, deprecated, library)TrevorMcDonell
accelerate-typelits12.0a typesafe way encode accelerate matrices and vectors (library, math)epsilonhalbe
accelerate-utility90.0Utility functions for the Accelerate framework (bsd3, library, parallelism)HenningThielemann
accentuateus70.0A Haskell implementation of the API. (bsd3, library, web)MichaelSchade
access-time70.0Cross-platform support for retrieving file access times (bsd3, library, system)MaxBolingbroke
accuerr100.0Data type like Either but with accumulating error type (bsd3, development, library)OmariNorman
ace180.0Attempto Controlled English parser and printer (bsd3, library, linguistics)ChrisDone
acid-state10592.5Add ACID guarantees to any serializable Haskell data structure. (benchmark, database, library, public-domain)DavidHimmelstrup, DavidJohnson, JeremyShaw
acid-state-dist20.0A replication backend for acid-state (benchmark, database, library, mit)maxvoit
acid-state-tls30.0Add TLS support for Data.Acid.Remote (database, library, public-domain)JeremyShaw
acl260.0Writing and calling ACL2 from Haskell. (bsd3, formal-methods, language, library)TomHawkins
acme-all-monad30.0A monad which is powerful enough to interpret any action (acme, library, public-domain)PhilFreeman
acme-box100.0A full featured empty project (acme, bsd3, library, program)twebb
acme-cadre70.0car, cdr and more (acme, library, public-domain)Jafet
acme-cofunctor132.0A Cofunctor is a structure from category theory dual to Functor (acme, bsd3, library)JasperVanDerJeugt
acme-colosson90.0Determines whether it is numberwang. (acme, bsd3, library)KeeganMcAllister
acme-comonad20.0A more efficient dualization (bsd3, library, ntrol)JoeQuinn
acme-cutegirl90.0Maybe gives you a cute girl (acme, gpl, library, program)MateuszKowalczyk
acme-default90.0A class for types with a distinguished aesthetically pleasing value (acme, apache, library)esz
acme-dont110.0A don't construct (acme, bsd3, library)GracjanPolak
acme-everything80.0Install everything. (acme, library, public-domain)quchen
acme-flipping-tables20.0Stop execution with rage. (acme, bsd3, library)JacobStanley
acme-functors112.0The best applicative functors. (acme, bsd3, library)chris_martin
acme-grawlix100.0More readable names for commonly used symbols (acme, bsd3, library)kadoban
acme-hq9plus80.0An embedded DSL for the HQ9+ programming language (acme, library, public-domain)JoeyAdams
acme-http140.0fastest Haskell PONG server in the world (bsd3, library, program, web)JeremyShaw
acme-inator80.0Evil inventions in the Tri-State area (acme, library, program, public-domain)MarkLentczner
acme-io30.0The only true way to do IO in Haskell! (acme, library)benzrf
acme-iot100.0IO monad transformer (control, library, mit)mniip
acme-kitchen-sink120.0A place for dumping that does-not-feel-right code while you improve it (bsd3, library, other)marcosdumay
acme-left-pad30.0free your haskell from the tyranny of npm! (agpl, library, text)JoeQuinn
acme-lolcat80.0LOLSPEAK translator (acme, bsd3, library)AntonNikishaev
acme-lookofdisapproval60.0Express your disapproval (acme, bsd3, library)AntonNikishaev
acme-memorandom80.0Memoized random number generation (acme, library, mit)ion
acme-microwave100.0The eighth wonder of the world, kitchen math! (acme, bsd3, library)JoeQuinn
acme-miscorder20.0Miscellaneous newtypes for orderings of discutable use. (acme, library, public-domain)LoicArjanen
acme-missiles1520.0Cause serious international side effects. (acme, library, public-domain)JoeyAdams
acme-now30.0An interface to the philosophical and metaphysical "now" (acme, library, public-domain)SjurGjoesteinKarevoll
acme-numbersystem30.0Define the less than and add and subtract for nats (acme, bsd3, library)MaxwellSwadling
acme-omitted130.0A name for omitted definitions (acme, bsd3, library)JoachimFasting
acme-one90.0The identity element of package dependencies (acme, library, public-domain)ion
acme-operators32.25Operators of base, all in one place! (bsd3, documentation, library)phadej
acme-php80.0The flexibility of Haskell and the safety of PHP (acme, bsd3, library)JoeQuinn
acme-pointful-numbers90.0Make more than one point in numeric literals (acme, bsd3, library)AntonNikishaev
acme-realworld80.0Primitives for manipulating the state of the universe (acme, bsd3, library)JoeyAdams
acme-safe31.25Safe versions of some infamous haskell functions such as fromJust (acme, library)fgaz
acme-schoenfinkel82.0Proper names for curry and uncurry (acme, bsd3, library)ErtugrulSoeylemez, esz
acme-smuggler120.0Smuggle arbitrary values in () (acme, bsd3, library)benc
acme-strfry40.0A binding to the glibc strfry function. (acme, bsd3, library)ElliottHird
acme-stringly-typed10.0Stringly Typed Programming (acme, bsd3, library)SvenStruett
acme-strtok100.0A Haskell port of the C/PHP strtok function (acme, library, public-domain)eberlm
acme-timemachine90.0An easy way to perform and unperform IO and other stateful actions. (acme, bsd3, library)mniip
acme-year130.0Get the current year (acme, benchmark, library, public-domain)JoeyAdams
acme-zero40.0The absorbing element of package dependencies (acme, library, public-domain)ion
action-permutations100.0Execute a set of actions (e.g. parsers) in each possible order (bsd3, control, library)RossPaterson
active11400.0Abstractions for animation (bsd3, data, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
activehs470.0Haskell code presentation tool (bsd3, documentation, education, program)PeterDivianszky, lspitzner, GaborPali, gombocarti
activehs-base510.0Basic definitions for activehs (bsd3, documentation, education, library)PeterDivianszky, lspitzner, GaborPali, gombocarti
activitystreams-aeson30.0An interface to the ActivityStreams specification (bsd3, codec, library)gdritter
actor30.0Actors with multi-headed receive clauses (bsd3, concurrency, library)MartinSulzmann
ad1662.5Automatic Differentiation (benchmark, bsd3, library, math)EdwardKmett, EricMertens, ryanglscott
adaptive-containers100.0Self optimizing container types (bsd3, data, library)DonaldStewart
adaptive-tuple50.0Self-optimizing tuple types (bsd3, data, library)JohnLato
adb10.0Android Debug Bridge (ADB) protocol (bsd3, library, network)StephenBlackheath
adblock2privoxy340.0Convert adblock config files to privoxy format (gpl, program, web)zubr
addLicenseInfo80.0Adds license info to the top of a file. (bsd3, development, program)JoeFredette
adhoc-network30.0Ad-hoc P2P network protocol (gpl, library, network)GwernBranwen, StephanFriedrichs
adict80.0Approximate dictionary searching (bsd3, library, natural-language-processing)JakubWaszczuk
adjunctions42492.25Adjunctions and representable functors (adjunctions, bsd3, data-structures, library)EdwardKmett, EricMertens, ryanglscott, AaronVargo
adler32110.0An implementation of Adler-32, supporting rolling checksum operation (bsd3, cryptography, hash, library)MariosTitas
adobe-swatch-exchange30.0parse Adobe Swatch Exchange files and (optionally) output .css files with the colors (bsd3, library, program, web)JeremyShaw
adp-multi80.0ADP for multiple context-free languages (algorithms, bioinformatics, bsd3, data-structures, library)MaikRiechert
adp-multi-monadiccp60.0Subword construction in adp-multi using monadiccp (algorithms, bioinformatics, bsd3, data-structures, library)MaikRiechert
aern2-mp160.0Multi-precision floats via MPFR (bsd3, library, math)MichalKonecny
aern2-real150.0Exact real numbers via Cauchy sequences and MPFR (bsd3, library, math, program)MichalKonecny
aeson130332.75Fast JSON parsing and encoding (bsd3, json, library, text, web)AdamBergmark, BasVanDijk, BryanOSullivan, HerbertValerioRiedel
aeson-applicative10.0make To/From JSOn instances from an applicative description (data, library, mit)GregWeber
aeson-better-errors790.0Better error messages when decoding JSON values. (json, library, mit, text, web)hdgarrood
aeson-bson20.0Mapping between Aeson's JSON and Bson objects. (data, library)AlfredoDiNapoli
aeson-casing250.0Tools to change the formatting of field names in Aeson instances. (data, library, mit)andrewrademacher
aeson-coerce100.0Initial project template from stack (bsd3, library, web)angerman
aeson-compat4530.0Compatibility layer for aeson (bsd3, library, web)phadej
aeson-diff600.0Extract and apply patches to JSON documents. (algorithms, bsd3, json, library, program, web)ThomasSutton
aeson-extra300.0Extra goodies for aeson (bsd3, library, web)phadej
aeson-filthy120.0Several newtypes and combinators for dealing with less-than-cleanly JSON input. (bsd3, json, library, text, web)AlecHeller
aeson-flat140.0Tools for creating flat JSON serializations (bsd3, library, web)seanhess
aeson-flatten130.0JSON flatten for Aeson (bsd3, json, library, text, web)JiriMarsicek
aeson-flowtyped280.0Create Flow type definitions from Haskell data types. (bsd3, library, web)MikeLedger
aeson-generic-compat90.0Compatible generic class names of Aeson (bsd3, library, text)KeiHibino
aeson-injector640.0Injecting fields into aeson values (data, json, library, mit, web)NCrashed
aeson-iproute120.0Aeson instances for iproute types (bsd3, data, library)sickmind
aeson-json-ast90.0Integration layer for "json-ast" and "aeson" (library, mit, unclassified)NikitaVolkov
aeson-lens460.0Lens of Aeson (bsd3, data, library)HideyukiTanaka
aeson-native (deprecated in favor of aeson)40.0Fast JSON parsing and encoding (deprecated) (bsd3, deprecated, json, library, text, web)MichaelSnoyman
aeson-parsec-picky110.0Alternative JSON parser based on Parsec and Aeson (bsd3, json, library, text)MatejKollar
aeson-prefix120.0Hiearchical prefixing for aeson (bsd3, json, library, text, web)JiriMarsicek
aeson-pretty25450.0JSON pretty-printing library and command-line tool. (bsd3, json, library, pretty-printer, text, web)FalkoPeters
aeson-qq1050.0JSON quasiquoter for Haskell (json, library, mit)OscarFinnsson, SimonHengel, qoelet
aeson-quick60.0Quick JSON extractions with Aeson (benchmark, bsd3, json, library, text, web)ssadler
aeson-schema180.0Haskell JSON schema validator and parser generator (data, library, mit)MateuszKowalczyk, TimBaumann
aeson-serialize60.0Simple serialization functions for aeson types (bsd3, library, unclassified)KevinCotrone
aeson-smart22.0Smart derivation of Aeson instances (library, mit, web)SamAnklesaria
aeson-streams30.0An HTTP client library for JSON-based APIs (bsd3, library, web)VoMinhThu
aeson-t80.0Transform JSON (data, library, mit)begriffs
aeson-toolkit50.0A generalization of Aeson over Failure (json, library, mit, text, web)SimonHengel
aeson-utils260.0Utilities for working with Aeson. (bsd3, data, library)AdamBergmark, ErikHesselink
aeson-value-parser190.0An API for parsing "aeson" JSON tree into Haskell types (data, json, library, mit, parsing)NikitaVolkov
aeson-yak60.0Handle JSON that may or may not be a list, or exist (data, library, mit)tejon
affection90.0A simple Game Engine using SDL (game, lgpl, library)nek0
affine-invariant-ensemble-mcmc (deprecated in favor of flat-mcmc)40.0General-purpose sampling (bsd3, deprecated, library, machine-learning, numerical, statistics)JaredTobin
affinely-extended120.0 (data, library, mit)clinton
afis50.0Anti-forensic Information Splitter (bsd3, cryptography, data, library)VincentHanquez
afv110.0Infinite state model checking of iterative C programs. (bsd3, formal-methods, program)TomHawkins
ag-pictgen60.0Attribute Grammar picture generation (bsd3, development, program)AtzeDijkstra
agda-server50.0Http server for Agda (prototype) (bsd3, dependent-types, program)PeterDivianszky
agda-snippets70.0Render just the Agda snippets of a literate Agda file to HTML (bsd3, dependent-types, library, program)LiamOConnorDavis
agda-snippets-hakyll80.0Literate Agda support using agda-snippets, for Hakyll pages. (bsd3, dependent-types, library)LiamOConnorDavis
agentx90.0AgentX protocol for write SNMP subagents (bsd3, library, network)chemist
agum220.0Unification and Matching in an Abelian Group (algebra, gpl, library, program)JohnRamsdell
aig260.0And-inverter graphs in Haskell. (bsd3, data, library)AaronTomb, RobertDockins
aip70.0Aeronautical Information Package (AIP) (aviation, bsd3, data, library, program)qfpl
air220.0air (bsd3, development, library)JinjingWang
air-extra130.0air-extra (bsd3, development, library)JinjingWang
air-spec60.0air spec helper (bsd3, development, library)JinjingWang
air-th50.0air (bsd3, development, library)JinjingWang
airbrake80.0An Airbrake notifier for Haskell (bsd3, library, network)JoelTaylor
airship4060.0A Webmachine-inspired HTTP library (library, mit, web)reiddraper, patrick_thomson
airtable-api240.0Requesting and introspecting Tables within an Airtable project. (bsd3, library, web)ooblahman
aivika970.0A multi-method simulation library (bsd3, library, simulation)DavidSorokin
aivika-branches140.0Nested discrete event simulation module for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-distributed880.0Parallel distributed discrete event simulation module for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-experiment660.0Simulation experiments for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-experiment-cairo530.0Cairo-based charting backend for the Aivika simulation library (bsd3, library, simulation)DavidSorokin
aivika-experiment-chart670.0Simulation experiments with charting for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-experiment-diagrams500.0Diagrams-based charting backend for the Aivika simulation library (bsd3, library, simulation)DavidSorokin
aivika-gpss390.0GPSS-like DSL for Aivika (bsd3, library, simulation)DavidSorokin
aivika-lattice140.0Nested discrete event simulation module for the Aivika library using lattice (bsd3, library, simulation)DavidSorokin
aivika-realtime120.0Soft real-time simulation module for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-transformers610.0Transformers for the Aivika simulation library (bsd3, library, simulation)DavidSorokin
ajhc142.0Haskell compiler that produce binary through C language (compiler, gpl, library, program)KiwamuOkabe
al310.0OpenAL 1.1 raw API. (bsd3, library, sound)DimitriSabadie
alarmclock410.0Wake up and perform an action at a certain time. (bsd3, concurrency, library)dcturner
alea250.0a diceware passphrase generator (mit, program, utility)rnhmjoj
alerta200.0Bindings to the alerta REST API (api, bsd3, library, monitoring, web)MarkHopkins
alerts210.0Alert messages for web applications (bsd3, library, web)alx741, DanielCampoverde
alex24370.0Alex is a tool for generating lexical analysers in Haskell (bsd3, development, program)SimonMarlow
alex-meta240.0Quasi-quoter for Alex lexers (bsd3, development, library)JonasDuregard
alex-prelude280.0Collection of useful functions for writing console applications (bsd3, library, system)AlexSayers
alex-tools200.0A set of functions for a common use case of Alex. (development, library)IavorDiatchki, TrevorElliott
alfred140.0utility library for Alfred version 2 (bsd3, library, utils)PatrickBahr
alga (deprecated)70.0Algorithmic automation for various DAWs (deprecated, gpl, language, library, program)mrkkrp
algebra580.0Constructive abstract algebra (algebra, bsd3, library, math)EdwardKmett, HiromiIshii, WolfgangJeltsch
algebra-dag110.0Infrastructure for DAG-shaped relational algebra plans (bsd3, database, library)AlexUlrich2
algebra-sql70.0Relational Algebra and SQL Code Generation (bsd3, database, library, program)AlexUlrich2
algebraic40.0General linear algebra structures. (algebra, bsd3, library, math)danilo2, Korri, MarcinMikolajczyk
algebraic-classes230.0Conversions between algebraic classes and F-algebras. (bsd3, data, generics, library, math)SjoerdVisscher
algebraic-graphs282.5A library for algebraic graph construction and transformation (algebra, algorithms, benchmark, data-structures, graphs, library, mit)snowleopard
algebraic-prelude102.0Algebraically structured Prelude (bsd3, library, web)HiromiIshii
algo-s40.0An implementation of Knuth's algorithm S. (apache, benchmark, data, library, program)EricRochester
align130.0Sequence alignment algorithms. (bsd3, data, library)literon
align-text40.0A simple unix filter to align text on specified substrings (mit, program, text)DanielChoi
aligned-foreignptr150.0An aligned ForeignPtr type (foreign, library, public-domain, system)BalazsKomuves
allocated-processor100.0Functional combinators for monadic actions that require allocation and de-allocation (bsd3, control, library)NoamLewis
alloy140.0Generic programming library (bsd3, generics, library)MattGlazar, NeilBrown
alloy-proxy-fd40.0Some add-on instances for the Alloy library (bsd3, generics, library)NeilBrown
almost-fix100.0Recurse while a predicate is satisfied (bsd3, library, unclassified)athanclark
alms160.0a practical affine language (bsd3, compilers-interpreters, program)JesseTov
alpha320.0A compiler for the Alpha language (bsd3, compiler, program)MarcCoiffier
alphachar70.0A character between a-z (bsd3, library, prelude)TonyMorris
alpino-tools70.0Alpino data manipulation tools (data, library, natural-language-processing, program)DanielDeKok
alsa (deprecated in favor of alsa-seq, alsa-pcm, alsa-core)80.0Binding to the ALSA Library API. (bsd3, deprecated, library, music, sound)HenningThielemann
alsa-core1360.0Binding to the ALSA Library API (Exceptions). (bsd3, library, music, sound)HenningThielemann
alsa-gui50.0Some simple interactive programs for sending MIDI control messages via ALSA (bsd3, gui, music, program, sound)HenningThielemann
alsa-midi (deprecated in favor of alsa-seq)60.0Bindings for the ALSA sequencer API (MIDI stuff) (deprecated, gpl, library, music, program, sound)HenningThielemann
alsa-mixer1000.0Bindings to the ALSA simple mixer API. (bsd3, library, sound)ThomasTuegel
alsa-pcm170.0Binding to the ALSA Library API (PCM audio). (bsd3, library, music, sound)HenningThielemann
alsa-pcm-tests (deprecated in favor of alsa-pcm)20.0Tests for the ALSA audio signal library. (bsd3, deprecated, music, program, sound)HenningThielemann
alsa-seq252.0Binding to the ALSA Library API (MIDI sequencer). (bsd3, library, music, sound)HenningThielemann
alsa-seq-tests (deprecated in favor of alsa-seq)10.0Tests for the ALSA sequencer library. (bsd3, deprecated, music, program, sound)HenningThielemann
altcomposition130.0Alternative combinators for unorthodox function composition (bsd3, data, library)jcristovao
alternative-extra110.0Extra utilities for alternatives (bsd3, control, library)marcosdumay
alternative-io (deprecated in favor of io-choice)50.0IO as Alternative instance (deprecated) (bsd3, data, deprecated, library)KazuYamamoto
alternative-vector290.0Use vectors instead of lists for many and some (bsd3, library, web)athanclark
alternators120.0Handy functions when using transformers (bsd3, control, library)louispan
altfloat110.0Alternative floating point support for GHC. (library, numerical)NickBowler
alure70.0A Haskell binding for ALURE (lgpl, library, sound)CarlJoachimSvenn
amazon-emailer (deprecated in favor of hworker-ses)40.0A queue daemon for Amazon's SES with a PostgreSQL table as a queue. (bsd3, deprecated, network, program)DanielPatterson
amazon-emailer-client-snap (deprecated in favor of hworker-ses)80.0Client library for amazon-emailer daemon (bsd3, deprecated, library, network)DanielPatterson
amazon-products40.0Connector for Amazon Products API (library, mit, program, web)andrewrademacher
amazonka4922.5Comprehensive Amazon Web Services SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-apigateway210.0Amazon API Gateway SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-application-autoscaling150.0Amazon Application Auto Scaling SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-appstream130.0Amazon AppStream SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-autoscaling2420.0Amazon Auto Scaling SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-budgets110.0Amazon Budgets SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-certificatemanager160.0Amazon Certificate Manager SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudformation700.0Amazon CloudFormation SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudfront670.0Amazon CloudFront SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudhsm490.0Amazon CloudHSM SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudsearch610.0Amazon CloudSearch SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudsearch-domains720.0Amazon CloudSearch Domain SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudtrail640.0Amazon CloudTrail SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudwatch2500.0Amazon CloudWatch SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudwatch-events180.0Amazon CloudWatch Events SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cloudwatch-logs1040.0Amazon CloudWatch Logs SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-codebuild110.0Amazon CodeBuild SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-codecommit340.0Amazon CodeCommit SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-codedeploy700.0Amazon CodeDeploy SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-codepipeline370.0Amazon CodePipeline SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cognito-identity760.0Amazon Cognito Identity SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cognito-idp170.0Amazon Cognito Identity Provider SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-cognito-sync660.0Amazon Cognito Sync SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-config660.0Amazon Config SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-core13482.5Core data types and functionality for Amazonka libraries. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-datapipeline670.0Amazon Data Pipeline SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-devicefarm380.0Amazon Device Farm SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-directconnect760.0Amazon Direct Connect SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-discovery160.0Amazon Application Discovery Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-dms160.0Amazon Database Migration Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ds360.0Amazon Directory Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-dynamodb1120.0Amazon DynamoDB SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-dynamodb-streams320.0Amazon DynamoDB Streams SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ec22810.0Amazon Elastic Compute Cloud SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ecr190.0Amazon EC2 Container Registry SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ecs410.0Amazon EC2 Container Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-efs380.0Amazon Elastic File System SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-elasticache620.0Amazon ElastiCache SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-elasticbeanstalk670.0Amazon Elastic Beanstalk SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-elasticsearch250.0Amazon Elasticsearch Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-elastictranscoder720.0Amazon Elastic Transcoder SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-elb950.0Amazon Elastic Load Balancing SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-elbv2130.0Amazon Elastic Load Balancing SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-emr990.0Amazon Elastic MapReduce SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-gamelift180.0Amazon GameLift SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-glacier500.0Amazon Glacier SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-health130.0Amazon Health APIs and Notifications SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-iam920.0Amazon Identity and Access Management SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-importexport620.0Amazon Import/Export SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-inspector260.0Amazon Inspector SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-iot220.0Amazon IoT SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-iot-dataplane240.0Amazon IoT Data Plane SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-kinesis740.0Amazon Kinesis SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-kinesis-analytics140.0Amazon Kinesis Analytics SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-kinesis-firehose300.0Amazon Kinesis Firehose SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-kms650.0Amazon Key Management Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-lambda590.0Amazon Lambda SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-lightsail120.0Amazon Lightsail SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-marketplace-analytics240.0Amazon Marketplace Commerce Analytics SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-marketplace-metering180.0Amazon Marketplace Metering SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ml350.0Amazon Machine Learning SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-opsworks650.0Amazon OpsWorks SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-opsworks-cm110.0Amazon OpsWorks for Chef Automate SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-pinpoint110.0Amazon Pinpoint SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-polly110.0Amazon Polly SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-rds950.0Amazon Relational Database Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-redshift740.0Amazon Redshift SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-rekognition130.0Amazon Rekognition SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-route53640.0Amazon Route 53 SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-route53-domains660.0Amazon Route 53 Domains SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-s33180.0Amazon Simple Storage Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-s3-streaming270.0Provides conduits to upload data to S3 using the Multipart API (aws, bsd3, cloud, distributed-computing, library, network, program)AlexMason
amazonka-sdb680.0Amazon SimpleDB SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-servicecatalog120.0Amazon Service Catalog SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ses700.0Amazon Simple Email Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-shield120.0Amazon Shield SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-sms130.0Amazon Server Migration Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-snowball120.0Amazon Import/Export Snowball SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-sns620.0Amazon Simple Notification Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-sqs1310.0Amazon Simple Queue Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-ssm420.0Amazon Simple Systems Manager (SSM) SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-stepfunctions140.0Amazon Step Functions SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-storagegateway640.0Amazon Storage Gateway SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-sts970.0Amazon Security Token Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-support720.0Amazon Support SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-swf600.0Amazon Simple Workflow Service SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-test310.0Common functionality for Amazonka library test-suites. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-waf240.0Amazon WAF SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-workspaces390.0Amazon WorkSpaces SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amazonka-xray120.0Amazon X-Ray SDK. (aws, cloud, distributed-computing, library, network)BrendanHay
amby60.0Statistical data visualization (benchmark, bsd3, graphics, library)jsermeno
ampersand60.0Toolsuite for automated design of business processes. (database-design, gpl, program)hanjoosten
amqp2752.25Client library for AMQP servers (currently only RabbitMQ) (bsd3, library, network, program)HolgerReinhardt
amqp-conduit90.0Conduit bindings for AMQP (see amqp package) (library, mit, network)toru_tomita
amqp-utils420.0Generic Haskell AMQP Consumer (gpl, network, program)woffs
amqp-worker170.0High level functions for working with message queues (bsd3, library, program, web)seanhess
amrun120.0Interpreter for AM (compilers-interpreters, gpl, program)DanielSeidel, JanisVoigtlaender
analyze120.0making data science easy and safe with data frames (bsd3, data-science, library)NickSeagull, ejconlon
analyze-client50.0Client for analyze service (bsd3, library, web)DanielPatterson
anansi290.0Simple literate programming preprocessor (development, gpl, library, program)JohnMillikin
anansi-hscolour50.0Colorized looms for Anansi (development, gpl, library)JohnMillikin
anansi-pandoc50.0Looms which use Pandoc to parse and produce a variety of formats. (development, gpl, library)JohnMillikin
anatomy20.0Anatomy: Atomo documentation system (bsd3, development, library, program)AlexSuraci
android50.0Android methods exposed to Haskell (gpl, library, system)IvanPerez, keera_studios_ci
android-activity412.0Turn regular Haskell programs into Android Activities (bsd3, library, mobile)RyanTrinkle
android-lint-summary80.0A pretty printer for Android Lint errors (apache, library, program, web)passy
angel570.0Process management and supervision daemon (bsd3, program, system)JamieTurner, MichaelXavier
angle20.0A small, general-purpose programming language. (benchmark, compilers-interpreters, gpl, library, program)GuiltyDolphin
animalcase100.0Convert camelCase to snake_case and vice versa (library, mit, text)ibotty
animate120.0Animation for sprites (bsd3, game, library)jxv
anki-tools90.0Tools for interacting with Anki database (bsd3, database, library, program)zohl
annah20.0Medium-level language that desugars to Morte (bsd3, compiler, library, program)GabrielGonzalez
annihilator (deprecated in favor of boolean-like)110.0Semigroups with annihilators and utility functions (bsd3, control, deprecated, library)Shou
annotated-wl-pprint6170.0The Wadler/Leijen Pretty Printer, with annotation support (bsd3, library, text)dchristiansen
anonymous-sums140.0Anonymous sum types (bsd3, data, library)OmariNorman
anonymous-sums-tests30.0QuickCheck functions to accompany the anonymous-sums package (bsd3, data, library)OmariNorman
ansi-pretty150.0AnsiPretty for ansi-wl-pprint (bsd3, library, text, user-interfaces)phadej
ansi-terminal128702.25Simple ANSI terminal support, with Windows compatibility (bsd3, library, user-interfaces)MaxBolingbroke, OliverCharles, RomanCheplyaka
ansi-wl-pprint80702.5The Wadler/Leijen Pretty Printer for colored ANSI terminal output (bsd3, library, text, user-interfaces)EdwardKmett, MaxBolingbroke, quchen
ansigraph660.0Terminal-based graphing via ANSI and Unicode (graphics, library, mit)Cliff_Harvey
antagonist230.0A web interface to Antisplice dungeons. (agpl, library, program, web)implementation
antfarm20.0Referring expressions for definitions (bsd3, library, natural-language-processing, program)EricKow
anticiv40.0This is an IRC bot for Mafia and Resistance. (agpl, library, network, program)implementation
antigate300.0Interface for captcha recognition API (captcha, library, mit, network-apis, text-recognition)MikhailKuddah
antimirov70.0Define the language containment (=subtyping) relation on regulare expressions. (gpl, language, library, math, program)RickKaudewitz
antiprimes110.0Initial project template from stack (bsd3, learning-haskell, library)wokibe
antiquoter70.0Combinator library for quasi- and anti-quoting. (bsd3, library, template-haskell)LarsCorbijn
antisplice230.0An engine for text-based dungeons. (agpl, game, library)implementation
antlrc30.0Haskell binding to the ANTLR parser generator C runtime library. (bsd3, library, parsing, program)MarkWright
anydbm50.0Interface for DBM-like database systems (database, gpl, library)JohnGoerzen
aosd110.0Bindings to libaosd, a library for Cairo-based on-screen displays (bsd3, graphics, library)DanielSchuessler
ap-reflect110.0Partial evaluation reflection a la simple-reflect. (bsd3, debug, library)NickolayKudasov
apache-md5132.0Apache specific MD5 digest algorighm. (benchmark, bsd3, cryptography, data, library)PeterTrsko
apecs2700.0A fast ECS for game engine programming (bsd3, control, data, game, library)jonascarpay
apelsin70.0Server and community browser for the game Tremulous (gpl, network, program)ChristofferOjeling
api-builder230.0Library for easily building REST API wrappers in Haskell (bsd3, library, network)Intolerable
api-field-json-th160.0option of aeson's deriveJSON (bsd3, library, utils)nakaji_dayo
api-opentheory-unicode40.0OpenTheory unicode character API (library, mit, text)JoeHurd
api-tools90.0DSL for generating API boilerplate and docs (bsd3, cloud, distributed-computing, library, network, program, web)AdamGundry, ChrisDornan
apiary882.5Simple and type safe web framework that generate web API documentation. (library, mit, web)HirotomoMoriwaki, winterland
apiary-authenticate210.0authenticate support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-clientsession220.0clientsession support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-cookie260.0Cookie support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-eventsource180.0eventsource support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-helics90.0helics support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-http-client60.0A http client for Apiary. (library, mit, web)winterland
apiary-logger180.0fast-logger support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-memcached110.0memcached client for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-mongoDB100.0mongoDB support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-persistent242.0persistent support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-purescript200.0purescript compiler for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-session30.0session support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-websockets270.0websockets support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apioiaf-client162.0Consumer library for (bsd3, library, web)krberger
apis40.0A Template Haskell library for generating type safe API calls (bsd2, library, web)FabianBergmark
apns-http2160.0Apple Push Notification service HTTP/2 integration. (bsd3, library, network, program)dridus
apotiki20.0a faster debian repository (library, mit, program, system)pyr
app-lens40.0applicative (functional) bidirectional programming beyond composition chains (benchmark, bsd3, data, lenses, library)kztk
app-settings290.0A library to manage application settings (INI file-like) (bsd3, configuration, library)EmmanuelTouzery
appar24440.0A simple applicative parser (bsd3, library, parsing)KazuYamamoto
appc50.0app container types and tools (data, library, mit, program)wereHamster
applicative-extras140.0Instances for Applicative (bsd3, control, library)ChrisEidhof
applicative-fail110.0Applicative functor and monad which collects all your fails (bsd3, control, library)AlekseyUymanov
applicative-numbers220.0Applicative-based numeric instances (bsd3, data, library, numerical)ConalElliott
applicative-parsec10.0An applicative parser combinator library (gpl, language, library)KarlVoelker
applicative-quoters140.0Quasiquoters for idiom brackets and an applicative do-notation (bsd3, language, library)BenMillwood
applicative-splice70.0Write applicative programs in direct style (generalizes idiom brackets). (control, library, public-domain)AkioTakano
apply-refact680.0Perform refactorings specified by the refact library. (bsd3, development, library, program)mpickering
apportionment80.0Round a set of numbers while maintaining its sum (bsd3, library, math)HenningThielemann
approx-rand-test60.0Approximate randomization test (library, program, statistics)DanielDeKok
approximate300.0Approximate discrete values and numbers (bsd3, library, numeric)EdwardKmett, EricMertens, ryanglscott
approximate-equality70.0Newtype wrappers for approximate equality (bsd3, data, library)GregoryCrosswhite
ar-timestamp-wiper70.0Wipes time stamps from .a files (like ar -D) (application, library, mit, program)NiklasHambuechen, PatrickChilton
arb-fft60.0Pure Haskell arbitrary length FFT library (bsd3, library, math, program)IanRoss
arbb-vm120.0FFI binding to the Intel Array Building Blocks (ArBB) virtual machine. (bsd3, foreign, library)JoelSvensson
arbtt640.0Automatic Rule-Based Time Tracker (desktop, gpl, program)JoachimBreitner
archive40.0A library and programs for creating hardlinked incremental archives or backups (bsd3, library, program, system)DavidFox, JeremyShaw
archiver200.0Archive supplied URLs in WebCite & Internet Archive (bsd3, documentation, library, network, program)GwernBranwen
archlinux (deprecated)490.0Support for working with Arch Linux packages. (bsd3, deprecated, distribution, library)DonaldStewart, MagnusTherning, PeterSimons
archlinux-web10.0Website maintenance for Arch Linux packages (bsd3, distribution, library, program)MagnusTherning
archnews40.0Convert Arch Linux package updates in RSS to pretty markdown (bsd3, distribution, program)DonaldStewart
arena80.0A journaled data store (benchmark, bsd3, database, library)AlecHeller, davean
arff60.0Generate Attribute-Relation File Format (ARFF) files (bsd3, data, library, text)StefanKersten
arghwxhaskell30.0An interpreter for the Argh! programming language in wxHaskell. (gpl, language, program)HenkJanVanTuyl
argon100.0Measure your code's complexity (development, static-analysis)rubik
argon290.0Haskell bindings to libargon2 - the reference implementation of the Argon2 password-hashing function (bsd3, library, unclassified)HerbertValerioRiedel, JoeyHess, OliverCharles
argparser190.0Command line parsing framework for console applications (bsd3, console, library)sbergot
arguedit20.0A computer assisted argumentation transcription and editing software. (argumentation, gpl, program)hrazel
ariadne60.0Go-to-definition for Haskell (language, mit, program)RomanCheplyaka, manzyuk
arion132.0Watcher and runner for Hspec (mit, program, testing)karun012
arith-encode90.0A practical arithmetic encoding (aka Godel numbering) library. (bsd3, data, library, serialization, test, testing)emc2
arithmatic140.0do things with numbers (bsd3, library, math)AlanHawkins
arithmetic50.0Natural number arithmetic (library, mit, number-theory, program)JoeHurd
arithmoi1040.0Efficient basic number-theoretic functions. (algorithms, library, math, mit, number-theory)CarterSchonwald, DanielFischer, HerbertValerioRiedel, Bodigrim
armada60.0Space-based real time strategy game (game, gpl, program)TimothyCarstens
arpa20.0Library for reading ARPA n-gram models (bsd3, library, natural-language-processing, nlp, program, text)StefanFischer
arpack20.0Solve large scale eigenvalue problems (bsd3, library, science)ThomasTuegel
array13942.0Mutable and immutable arrays (bsd3, data-structures, library)AustinSeipp, HerbertValerioRiedel, IanLynagh
array-forth80.0A simple interpreter for arrayForth, the language used on GreenArrays chips. (gpl, language, library, program)TikhonJelvis
array-memoize90.0Memoization combinators using arrays for finite sub-domains of functions (bsd3, library, syntax)DominicOrchard
array-primops130.0Extra foreign primops for primitive arrays (benchmark, bsd3, data, library)AndrasKovacs
array-utils (deprecated)280.0Primitive functions for updating many elements in mutable arrays at once (bsd3, data, data-structures, deprecated, library)AlexMason
arrow-extras120.0Extra functions for Control.Arrow (bsd3, control, library)louispan
arrow-improve10.0Improved arrows. (control, library, mit)alynn
arrow-list150.0List arrows for Haskell. (bsd3, control, library)AdamBergmark, ErikHesselink, SebastiaanVisser
arrowapply-utils80.0Utilities for working with ArrowApply instances more naturally (bsd3, control, library)AndrewMiller
arrowp80.0preprocessor translating arrow notation into Haskell 98 (development, gpl, program)RossPaterson
arrowp-qq260.0A preprocessor and quasiquoter for translating arrow notation (development, gpl, library, program)PepeIborra
arrows1000.0Arrow classes and transformers (bsd3, control, library)RossPaterson
artery30.0A simple, arrow-based reactive programming (bsd3, control, frp, library)FumiakiKinoshita
arx200.0Archive execution tool. (bsd3, library, text)JasonDusek
arxiv70.0A client for the Arxiv API (api, arxiv, lgpl, library, network, networkapi)TobiasSchoofs
ascetic80.0Generic markup builder. (library, mit, text)AndreiLapets
ascii (deprecated)150.0Type-safe, bytestring-based ASCII values. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
ascii-art-to-unicode130.0ASCII Art to Unicode Box Drawing converter (bsd3, library, program, unclassified)fmthoma
ascii-cows80.0A collection of ASCII cows. Moo. (acme, bsd3, library)passy
ascii-flatten20.0Flattens European non-ASCII characaters into ASCII (library, mit, program, text)DanielChoi
ascii-progress480.0A simple progress bar for the console. (library, mit, system)yamadapc
ascii-table110.0ASCII table (bsd3, data, library)mitchellwrosen
ascii-vector-avc40.0Process Ascii Vectors for Advantest 93k (data, gpl, library, program)m
ascii85-conduit30.0Conduit for encoding ByteString into Ascii85 (bsd3, conduit, data, library)KazuoKoga
asciidiagram242.0Pretty rendering of Ascii diagram into svg or png. (bsd3, diagram, library, program, text)VincentBerthoux
asic20.0Action Script Instrumentation Compiler (compilers-interpreters, lgpl, program)ArieMiddelkoop
asil40.0Action Script Instrumentation Library (compilers-interpreters, lgpl, library)ArieMiddelkoop
asn1-codec120.0Encode and decode ASN.1 (bsd3, library, web)andrewthad
asn1-data (deprecated in favor of asn1-encoding)910.0ASN1 data reader and writer in RAW, BER and DER forms (bsd3, data, deprecated, library)VincentHanquez
asn1-encoding52031.75ASN1 data reader and writer in RAW, BER and DER forms (bsd3, data, library)VincentHanquez
asn1-parse45860.0Simple monadic parser for ASN1 stream types. (bsd3, data, library)VincentHanquez
asn1-types46840.0ASN.1 types (bsd3, data, library)VincentHanquez
asn1dump240.0Dump ASN1 structure (bsd3, debug, program)VincentHanquez
aspell-pipe210.0Pipe-based interface to the Aspell program (bsd3, library, text)JonathanDaugherty
assembler10.0Haskell Assembler (bsd3, development, library, program)JeffDouglas
assert100.0Helpers for Control.Exception.assert (bsd3, control, library)LiyangHu
assert-failure4772.0Syntactic sugar improving 'assert' and 'error' (bsd3, contract, control, library)MikolajKonarski
assertions80.0A simple testing framework. (library, mit, testing)vi
assimp10.0The Assimp asset import library (bsd3, graphics, library)JoelBurget
ast-monad180.0A library for constructing AST by using do-notation (bsd3, language, library)MasatoMouri
ast-monad-json190.0A library for writing JSON (bsd3, language, library)MasatoMouri
astar160.0General A* search algorithm. (bsd3, data, library)CaleGibbard, JohannesWeiss
astrds30.0an incomplete 2d space game (bsd3, game, program)AndresLoeh
astro182.0Amateur astronomical computations (bsd3, library, science)aignatyev17
astview (deprecated)60.0A GTK-based abstract syntax tree viewer for custom languages and parsers (bsd4, deprecated, language, program)SebastianMenge
astview-utils (deprecated)60.0Interfacing between hint and astview (bsd4, deprecated, language, library)SebastianMenge
async133772.5Run IO operations asynchronously and wait for their results (bsd3, concurrency, library)PeterSimons, SimonMarlow
async-ajax70.0Crossbrowser async AJAX Bindings for GHCJS (library, mit, web)AlexanderThiemann
async-dejafu (deprecated in favor of concurrency)150.0Run MonadConc operations asynchronously and wait for their results. (bsd3, concurrency, deprecated, library)barrucadu
async-extra160.0Useful concurrent combinators (library, mit, web)AlexanderThiemann
async-extras170.0Extra Utilities for the Async Library (bsd3, concurrency, library)JonathanFischoff, lloucas
async-io-either172.0Could be useful (bsd3, error-handling, library)schalmers
async-manager30.0A thread manager for async (bsd3, concurrency, library, program)JonathanFischoff
async-pool180.0A modified version of async that supports worker groups and many-to-many task dependencies (library, mit, system)JohnWiegley
async-refresh140.0Package implementing core logic for refreshing of expiring data. (bsd3, control, library)mtesseract
async-refresh-tokens420.0Package implementing core logic for refreshing of expiring access tokens (bsd3, control, library)mtesseract
async-timer140.0Provides API for timer based execution of IO actions (bsd3, concurrency, library)mtesseract
asynchronous-exceptions (deprecated)40.0Distinguish between synchronous and asynchronous exceptions (control, deprecated, library, mit)RomanCheplyaka
aterm90.0serialisation for Haskell values with sharing support (data, gpl, library, parsing)ChristianMaeder
aterm-utils70.0Utility functions for working with aterms as generated by Minitermite (bsd3, language, library, program)JasonDagit
atl200.0Arrow Transformer Library (bsd3, control, library)MatthewFarkasDyck
atlassian-connect-core210.0Atlassian Connect snaplet for the Snap Framework and helper code. (apache, library, snap, web)RobertMassaioli, eero, AshleyValent
atlassian-connect-descriptor290.0Code that helps you create a valid Atlassian Connect Descriptor. (apache, data, library)RobertMassaioli, eero, AshleyValent
atmos160.01976 US Standard Atmosphere Model (library, public-domain, science)GregHorn
atmos-dimensional (deprecated in favor of atmos)60.0dimensional wrapper on atmos package (bsd3, deprecated, library, science)GregHorn
atmos-dimensional-tf (deprecated in favor of atmos)60.0dimensional-tf wrapper on atmos package (bsd3, deprecated, library, science)GregHorn
atndapi80.0An interface of ATND API (bsd3, library, web)ynishi
atom450.0An EDSL for embedded hard realtime applications. (bsd3, embedded, language, library)LeePike, TomHawkins
atom-basic200.0Basic Atom feed construction (bsd3, library, web)cbaatz
atom-conduit710.0Streaming parser/renderer for the Atom 1.0 standard (RFC 4287). (conduit, library, public-domain, xml)koral
atom-msp43070.0Convenience functions for using Atom with the MSP430 microcontroller family. (embedded, library, mit)DanielBuckmaster
atomic-modify130.0A typeclass for mutable references that have an atomic modify operation. (apache, concurrency, library)chris_martin
atomic-primops1210.0A safe approach to CAS and other atomic ops in Haskell. (bsd3, data, library)BrandonSimmons, GregoryCollins, RyanNewton, ryanglscott, peter_fogg, chchen
atomic-primops-foreign30.0An atomic counter implemented using the FFI. (bsd3, data, library)RyanNewton
atomic-primops-vector20.0Atomic operations on Data.Vector types (bsd3, concurrency, library)peter_fogg
atomic-write282.0Atomically write to a file (library, mit, system)jsl, stackbuilders
atomo190.0A highly dynamic, extremely simple, very fun programming language. (bsd3, language, program)AlexSuraci
atp-haskell120.0Translation from Ocaml to Haskell of John Harrison's ATP code (bsd3, library, logic, theorem-provers)DavidFox
atrans120.0A small collection of monad (transformer) instances. (library, mit, monads)apho
attempt (deprecated in favor of exceptions)350.0Concrete data type for handling extensible exceptions as failures. (deprecated) (bsd3, data, deprecated, failure, library)MichaelSnoyman
attic-schedule90.0A script I use to run "attic" for my backups. (bsd3, program, web)passy
atto-lisp1120.0Efficient parsing and serialisation of S-Expressions. (bsd3, data, library, text)ThomasSchilling
attoparsec121722.5Fast combinator parsing for bytestrings and text (benchmark, bsd3, library, parsing, text)BasVanDijk, BenGamari, BryanOSullivan
attoparsec-arff60.0An ARFF file parser using Attoparsec (ai, data, gpl, library, text)PaulWilson
attoparsec-binary1480.0Binary processing extensions to Attoparsec. (bsd3, data, library)AndrewDrake
attoparsec-conduit (deprecated in favor of conduit-extra)870.0Consume attoparsec parsers via conduit. (deprecated) (conduit, data, deprecated, library, mit, parsing)MichaelSnoyman
attoparsec-csv120.0A parser for CSV files that uses Attoparsec (library, text)RobinBateBoerop
attoparsec-data140.0Parsers for the standard Haskell data types (library, mit, parsing)NikitaVolkov
attoparsec-enumerator (deprecated)1120.0Pass input from an enumerator to an Attoparsec parser. (deprecated, enumerator, library, mit, parsing, text)JohnMillikin
attoparsec-expr480.0Port of parsec's expression parser to attoparsec. (bsd3, library, parsing, text)AdamBergmark, SebastiaanVisser
attoparsec-ip360.0Parse IP data types with attoparsec (bsd3, library, web)athanclark
attoparsec-iso860117212.0Parsing of ISO 8601 dates, originally from aeson. (bsd3, library, parsing)AdamBergmark
attoparsec-iteratee140.0An adapter to convert attoparsec Parsers into blazing-fast Iteratees (bsd3, data, library)GregoryCollins, JohnLato
attoparsec-parsec110.0An Attoparsec compatibility layer for Parsec (library, mit, parsing)SimonHengel
attoparsec-path700.0Convenience bindings between path and attoparsec (bsd3, library, web)athanclark
attoparsec-text (deprecated in favor of attoparsec)110.0(deprecated) (bsd3, deprecated, library, parsing, text)BryanOSullivan, FelipeLessa
attoparsec-text-enumerator30.0(deprecated) (enumerator, library, mit, parsing, text)FelipeLessa
attoparsec-time290.0Attoparsec parsers of time (attoparsec, library, mit, parsers, time)NikitaVolkov
attoparsec-trans70.0Interleaved effects for attoparsec parsers (control, library, mit)srijs
attoparsec-uri450.0URI parser / printer using attoparsec (bsd3, library, network)athanclark
attosplit20.0Split a lazy bytestring at boundaries defined by an attoparsec parser (bsd3, data, library)YitzGale
atuin10.0Embedded Turtle language compiler in Haskell, with Epic output (bsd3, compilers-interpreters, program)EdwinBrady
audacity140.0Interchange with the Audacity sound signal editor (bsd3, library, sound)HenningThielemann
audiovisual10.0A battery-included audiovisual framework (bsd3, data, library, records)FumiakiKinoshita
augeas280.0A Haskell FFI wrapper for the Augeas API (lgpl, library, program, system)JudeNagurney
augur50.0Renaming media collections in a breeze. (bsd3, program, text)DavidHimmelstrup
aur482.0Access metadata from the Arch Linux User Repository. (gpl, library, linux)fosskers
aur-api40.0ArchLinux AUR json v5 API (bsd3, library, web)wangbj
authenticate2150.0Authentication methods for Haskell web applications. (library, mit, web)FelipeLessa, MichaelSnoyman
authenticate-kerberos160.0Authentication methods for Haskell web applications. (bsd3, library, web)ArashRouhani
authenticate-ldap70.0LDAP authentication for Haskell web applications. (bsd3, library, web)MichaelLitchard
authenticate-oauth2680.0Library to authenticate with OAuth for Haskell web applications. (bsd3, library, web)FelipeLessa, HiromiIshii, MichaelLitchard, MichaelSnoyman, achirkin
authinfo-hs80.0Password querying for .authinfo (library, mit, system)robgssp
authoring90.0A library for writing papers (bsd3, library, text)TakayukiMuranushi
auto262.0Denotative, locally stateful programming DSL & platform (control, library, mit)jle
auto-update26660.0Efficiently run periodic, on-demand actions (control, library, mit)KazuYamamoto, MichaelSnoyman
autoexporter10002.0Automatically re-export modules. (library, mit, program, utility)fozworth
autom40.0Generates and displays patterns from next nearest neighbors cellular automata (gpl, graphics, library)infrared
automitive-cse (deprecated in favor of automotive-cse)100.0Automotive CSE emulation (bsd3, codec, deprecated, library)KeiHibino
automotive-cse (deprecated)240.0Automotive CSE emulation (bsd3, codec, deprecated, library)KeiHibino
autonix-deps (deprecated)50.0Library for Nix expression dependency generation (bsd3, deprecated, library, nix)ThomasTuegel
autonix-deps-kf5 (deprecated)50.0Generate dependencies for KDE 5 Nix expressions (bsd3, deprecated, library, nix, program)ThomasTuegel
autoproc110.0EDSL for Procmail scripts (bsd3, library, program, system)GwernBranwen, JasonDagit
avahi30.0Minimal DBus bindings for Avahi daemon ( (bsd3, library, network)IlyaPortnov
avatar-generator20.0A simple random avatar icon generator (bsd3, graphics, program)IvanPerez, keera_studios_ci
average100.0An average (arithmetic mean) monoid. (bsd3, library, unclassified)HansHoglund
avers322.0Server-side implementation of the Avers storage model (avers, benchmark, gpl, library)wereHamster
avers-api350.0Types describing the core and extended Avers APIs (avers, library, mit)wereHamster
avers-api-docs110.0Swagger documentation for the Avers API (avers, library, mit)wereHamster
avers-server380.0Server implementation of the Avers API (avers, library, mit)wereHamster
aviation-cessna172-diagrams70.0Diagrams for the Cessna 172 aircraft in aviation. (aviation, library)TonyMorris
avl-static20.0A compile-time balanced AVL tree. (bsd3, data, library)FedericoLebron
avr-shake100.0AVR Crosspack actions for shake build systems. (development, library, public-domain)JamesCook
avro960.0Avro serialization support for Haskell (bsd3, data, library)newhoggy, alexeyraga
avwx150.0Parse aviation weather reports (aviation, library, mit, program)hc
awesome-prelude20.0A prelude which I can be happy with. Based on base-prelude. (gpl, library, prelude)kozross
awesomium10.0High-level Awesomium bindings. (graphics, lgpl, library, web)MaksymilianOwsianny
awesomium-glut10.0Utilities for using Awesomium with GLUT. (graphics, lgpl, library, web)MaksymilianOwsianny
awesomium-raw70.0Low-level Awesomium bindings. (graphics, lgpl, library, web)MaksymilianOwsianny
aws3130.0Amazon Web Services (AWS) for Haskell (aws, bsd3, cloud, distributed-computing, library, network, web)AristidBreitkreuz, BenGamari, FelipeLessa, JohnWiegley, MichaelSnoyman
aws-cloudfront-signer1290.0For signing AWS CloudFront HTTP URL requests (aws, bsd3, cloud, distributed-computing, library, network, web)ChrisDornan
aws-configuration-tools20.0Configuration types, parsers & renderers for AWS services (apache, cloud, configuration, library)JonSterling
aws-dynamodb-conduit90.0Conduit-based interface for AWS DynamoDB (aws, library, mit)srijs
aws-dynamodb-streams20.0Haskell bindings for Amazon DynamoDB Streams (apache, library, network)JonSterling, puffnfresh
aws-ec2170.0AWS EC2/VPC, ELB and CloudWatch client library for Haskell (aws, bsd3, cloud, distributed-computing, library, network, program, web)AmitLevy, DavidTerei, IanRoss, VladimirKirillov
aws-elastic-transcoder70.0Haskell suite for the Elastic Transcoder service (aws, bsd3, cloud, distributed-computing, library, network, web)ChrisDornan
aws-general120.0Bindings for Amazon Web Services (AWS) General Reference (aws, cloud, distributed-computing, library, mit, network, web)larsk
aws-kinesis120.0Bindings for Amazon Kinesis (apache, aws, cloud, distributed-computing, library, network, web)larsk
aws-kinesis-client160.0A producer & consumer client library for AWS Kinesis (apache, cloud, library, program)JonSterling, larsk
aws-kinesis-reshard20.0Reshard AWS Kinesis streams in response to Cloud Watch metrics (apache, cloud, library, program)JonSterling
aws-lambda20.0Haskell bindings for AWS Lambda (apache, cloud, library, network)JonSterling
aws-mfa-credentials120.0Keep your AWS credentials file up to date with MFA-carrying credentials (apache, config, program)shlevy
aws-performance-tests80.0Performance Tests for the Haskell bindings for Amazon Web Services (AWS) (aws, cloud, distributed-computing, library, mit, network, program, web)larsk
aws-route53120.0Amazon Route53 DNS service plugin for the aws package. (bsd3, library, web)AmitLevy, DavidTerei
aws-sdk430.0AWS SDK for Haskell (aws, bsd3, cloud, distributed-computing, library)YusukeNomura
aws-sdk-text-converter80.0The text converter for aws-sdk. (bsd3, library, web)YusukeNomura
aws-sdk-xml-unordered110.0The xml parser for aws-sdk package (bsd3, library, xml)ShoheiYasutake
aws-sign460.0Amazon Web Services (AWS) Signature v4 HTTP request signer (aws, bsd3, cloud, distributed-computing, library, network, web)ChrisDornan
aws-simple130.0Dead simple bindings to commonly used AWS Services (library, mit, web)AlexanderThiemann
aws-sns30.0Bindings for AWS SNS Version 2013-03-31 (aws, cloud, distributed-computing, library, mit, network, web)larsk
axiom190.0Web EDSL for running in browsers and server nodes using transient (library, mit, web)AlbertoCorona
axiomatic-classes50.0Specify axioms for type classes and quickCheck all available instances (library, mit, testing)aminb, SimonHudon
azubi390.0A simple DevOps tool which will never "reach" enterprice level. (gpl, library, system)palo
azure-acs80.0Windows Azure ACS (bsd3, library, web)kapilash
azure-service-api20.0Haskell bindings for the Microsoft Azure Service Management API (bsd3, library, network)EdskoDeVries, MathieuBoespflug, TimWatson
azure-servicebus70.0Haskell wrapper over Microsoft Azure ServiceBus REST API (bsd3, library, web)kapilash
azurify150.0A simple library for accessing Azure blob storage (bsd3, development, library)ArnoVanLumig, GregWeber, SeanLeather
b-tree110.0Immutable disk-based B* trees (benchmark, bsd3, data, library)BenGamari
b91182.0A tool and library for building virtual machine images. (development, library, mit, program)SvenHeyll
babl80.0Haskell bindings to BABL library. (graphics, lgpl, library)nek0
babylon100.0An implementation of a simple 2-player board game (game, gpl, program)PedroVasconcelos
backdropper20.0Rotates backdrops for X11 displays using Imagemagic. (gpl, library, program, unclassified)YannGolanski
backprop150.0Heterogeneous, type-safe automatic backpropagation in Haskell (benchmark, bsd3, library, web)jle
backtracking-exceptions10.0A monad transformer for backtracking exceptions (bsd3, control, library)tapuu
backward-state40.0A state monad that runs the state in reverse through the computation (bsd3, control, library, monads)LukePalmer
bacteria80.0braindead utility to compose Xinerama backgrounds (graphics, program)DanielWagner
bag (deprecated in favor of dlist)60.0A simple stable bag. (data-structures, deprecated, library, mit)DanielWaterworth
bake170.0Continuous integration system (bsd3, development, library, program)NeilMitchell
ballast120.0Shipwire API client (bsd3, library, web)alexeyzab
bamboo320.0A blog engine on Hack (gpl, library, web)JinjingWang
bamboo-launcher70.0bamboo-launcher (gpl, program, web)JinjingWang
bamboo-plugin-highlight20.0A highlight middleware (gpl, library, web)JinjingWang
bamboo-plugin-photo20.0A photo album middleware (bsd3, library, web)JinjingWang
bamboo-theme-blueprint90.0bamboo blueprint theme (bsd3, library, web)JinjingWang
bamboo-theme-mini-html540.0bamboo mini html5 theme (gpl, library, web)JinjingWang
bamse80.0A Windows Installer (MSI) generator framework (bsd3, library, system)SigbjornFinne
bamstats90.0A program to extract various information from BAM alignmnet files. (bioinformatics, gpl, library, program)KetilMalde
bank-holiday-usa150.0A library for determining US bank holidays (library, mit, time)tippenein
bank-holidays-england280.0Calculation of bank holidays in England and Wales (bsd3, data, library)dcturner
banwords (deprecated)40.0Generalized word blacklister (deprecated, heuristics, library, mit)fanjam
barchart40.0Creating Bar Charts in Haskell (bsd3, graphics, library, program)SebastianFischer
barcodes-code12820.0Generate Code 128 barcodes as PDFs (graphics, library, mit)dchristiansen
barecheck (deprecated)60.0QuickCheck implementations for common types (bsd3, deprecated, library, testing)OmariNorman
barley50.0A web based environment for learning and tinkering with Haskell (program, web)JohanTibell
barrie90.0Declarative Gtk GUI library (gpl, gui, library)FraserWilson style badge generator (graphics, library, mit)HirotomoMoriwaki
barrier-monad30.0Implementation of barrier monad, can use custom front/back type (control, library, public-domain)AaronBlack
base12992.75Basic libraries (bsd3, library, prelude)AustinSeipp, HerbertValerioRiedel, IanLynagh, PaoloCapriotti
base-compat124602.0A compatibility layer for base (compatibility, library, mit)SimonHengel, ryanglscott
base-feature-macros120.0Semantic CPP feature macros for base (bsd3, development, library)HerbertValerioRiedel
base-generics20.0This library provides some instances for extra GHC.Generic typeclass such as Int8, Word16 and some unboxed types as well. (generic, library, mit)songzh
base-io-access60.0The IO functions included in base delimited into small, composable classes (gpl, library, system)bheklilr
base-noprelude312.0"base" package sans "Prelude" module (bsd3, development, library)HerbertValerioRiedel
base-orphans78562.0Backwards-compatible orphan instances for base (compatibility, library, mit)EdwardKmett, HerbertValerioRiedel, SimonHengel, ryanglscott
base-prelude15532.0The most complete prelude formed solely from the "base" package (library, mit, prelude)NikitaVolkov
base-unicode-symbols16392.25Unicode alternatives for common functions and operators (bsd3, library, unclassified)RoelVanDijk
base16-bytestring45202.0Fast base16 (hex) encoding and decoding for ByteStrings (bsd3, data, library)BryanOSullivan
base32-bytestring90.0Fast base32 and base32hex codec for ByteStrings (benchmark, bsd3, codec, data, library)SamTruzjan
base32string50.0Fast and safe representation of a Base-32 string (data, library, mit)solatis
base58-bytestring9830.0Implementation of BASE58 transcoding for ByteStrings (benchmark, bytestrings, data, library, public-domain)AlekseyUymanov
base58address80.0Parsing and serialization for Base58 addresses (Bitcoin and Ripple) (library, web)StephenWeber
base58string60.0Fast and safe representation of a Base-58 string (data, library, mit)solatis
base64-bytestring99630.0Fast base64 encoding and decoding for ByteStrings (bsd3, data, library)BryanOSullivan
base64-conduit (deprecated in favor of conduit-combinators)60.0Base64-encode and decode streams of bytes. (deprecated) (bsd3, conduit, data, deprecated, library)MichaelSnoyman
base64-string300.0Base64 implementation for String's. (codec, library)IanLynagh
base91130.0A Generic Base91 Encoder & Decoder (codec, library, mit, program)ajg
basement42010.0Foundation scrap box of array & string (bsd3, library, web)MichaelSnoyman, VincentHanquez, nicolasdp
basex-client100.0A BaseX client for Haskell (database, library, mit)MatthijsSteen
bash130.0Bash generation library. (bsd3, language, library)JasonDusek
basic-cpuid110.0A small package to access the cpuid instruction directly. (bsd3, library, system)JonasScholl
basic-lens350.0Basic lens type and functions (bsd3, development, library)ChrisDone
basic-prelude1312.0An enhanced core prelude; a common foundation for alternate preludes. (control, library, mit, prelude)DanBurton, MichaelSnoyman
basic-sop220.0Basic examples and functions for generics-sop (bsd3, generics, library)AndresLoeh
baskell90.0An interpreter for a small functional language (compilers-interpreters, gpl, program)GwernBranwen
batch-rename180.0Make Linux or MacOS do things like "rename *.mp3 *.mp4" (program, public-domain, system)uppet
batchd50.0Batch processing toolset for Linux / Unix (bsd3, program, system)IlyaPortnov
battlenet40.0API client for Battle.Net (library, mit, network)teozkr
battlenet-yesod30.0Yesod integration for the battlenet package (library, mit, network)teozkr
battleships120.0A web-based implementation of battleships including an AI opponent. (bsd3, game, library)fatho
bayes-stack60.0Framework for inferring generative probabilistic models with Gibbs sampling (bsd3, library, math)BenGamari
bbdb160.0Ability to read, write, and examine BBDB files (database, gpl, library)HenryLaxen
bbi100.0Tools for reading Big Binary Indexed files, e.g., bigBed, bigWig (bio, bsd3, library)kaizhang
bcrypt340.0Haskell bindings to the bcrypt password hash (bsd3, cryptography, data, library)AndrewMiller
bdd80.0Behavior-Driven Development DSL (library, mit, testing)irekjozwiak
bdelta (deprecated in favor of bytestring-delta)70.0Simple, fast binary diff/patch (data, deprecated, library, mit)JoeyAdams
bdo70.0Update CSS in the browser without reloading the page. (bsd3, library, program, web)ChrisDone
beam32.0A type-safe SQL mapper for Haskell that doesn't use Template Haskell (database, library, mit)TravisAthougies
beam-th72.0Template Haskell utilities for beam (bsd3, database, library, template-haskell)hesiod
beamable60.0Generic serializer/deserializer with compact representation (benchmark, bsd3, data, library, serialization)JohnLato, MichaelBaikov
bearriver30.0A replacement of Yampa based on Monadic Stream Functions. (bsd3, frp, library)IvanPerez, keera_studios_ci
beautifHOL40.0A pretty-printer for higher-order logic (gpl, program, text)LeePike
bed-and-breakfast270.0Efficient Matrix operations in 100% Haskell. (library, linear-algebra, math, mit, numeric)JulianFleischer
beeminder-api40.0Bindings to the JSON API (bsd3, library, network)BrentYorgey, DanielWagner, RobinGreen
bein (deprecated)90.0Bein is a provenance and workflow management system for bioinformatics. (application, deprecated, gpl, program)FrederickRoss
bench530.0Command-line benchmark tool (bsd3, program, system)GabrielGonzalez
benchmark-function130.0Test the time it takes to run a haskell function (gpl, library, testing)AlanHawkins
benchpress290.0Micro-benchmarking with detailed statistics. (bsd3, library, program, testing)JohanTibell, willsewell
bencode1572.0Parser and printer for bencoded data. (bsd3, library, text)DavidHimmelstrup, ChristopherReichert
bencoding160.0A library for encoding and decoding of BEncode data. (benchmark, bsd3, data, library)SamTruzjan
bento72.0🍱 Manage stateful components. (library, mit, utility)fozworth
berkeleydb90.0Pretty BerkeleyDB v4 binding. (bsd3, database, library)DavidHimmelstrup
berp40.0An implementation of Python 3. (bsd3, language, library, program)BerniePope
bert260.0BERT implementation (bsd3, data, library)MariusEriksen, RomanCheplyaka, manzyuk
besout40.0Extended GCD of polynomials over F_p[x] (bsd3, library, math)AbdelwahebMiled
bet80.0Betfair API bindings. Bet on sports on betting exchanges. (library, mit, network)Adeon
betacode20.0A codec for beta code ( (apache, library, text)EricRochester
between360.0Function combinator "between" and derived combinators (bsd3, data, library)PeterTrsko
bf-cata70.0 (development, lgpl, library)ArieMiddelkoop
bff90.0Bidirectionalization for Free! (POPL'09) (data, library, public-domain)DanielSeidel, JanisVoigtlaender, JoachimBreitner
bff-mono120.0"Bidirectionalization for Free" for Monomorphic Transformations (bsd3, data, lenses, library)kztk
bgmax170.0Parse BgMax-files (bsd3, finance, library)petterb
bgzf (deprecated in favor of pipes-bgzf)10.0Blocked GZip (bsd3, codec, deprecated, library)rcallahan
bibdb100.0A database based bibliography manager for BibTeX (mit, program, text)cacay
bibtex340.0Parse, format and processing BibTeX files (bsd3, library, text)HenningThielemann
bidirectionalization-combined80.0Prototype Implementation of Combining Syntactic and Semantic Bidirectionalization (ICFP'10) (language, program, public-domain)JoachimBreitner
bidispec80.0Specification of generators and parsers (data, lgpl, library)DavidLeuschner, StefanWehr
bidispec-extras20.0Extra helper functions for bidirectional specifications (data, lgpl, library)StefanWehr
bifunctors71422.5Bifunctors (bsd3, data, functors, library)EdwardKmett, EricMertens, ryanglscott
bighugethesaurus90.0API wrapper for Big Huge Thesaurus (api, gpl, language, library)TheKing
billboard-parser60.0A parser for the Billboard chord dataset (lgpl, library, music, program)BasDeHaas
billeksah-forms10.0Leksah library (graphics, lgpl, library)JuergenNicklischFranken
billeksah-main10.0Leksah plugin base (control, lgpl, program)JuergenNicklischFranken
billeksah-main-static20.0Leksah plugin base (control, lgpl, program)JuergenNicklischFranken
billeksah-pane20.0Leksah library (graphics, lgpl, library)JuergenNicklischFranken
billeksah-services10.0Leksah library (control, lgpl, library)JuergenNicklischFranken
bimap740.0Bidirectional mapping between two key types (bsd3, data, library)StuartCook, joel_williamson
bimap-server60.0Two-column database server. (bsd3, data, library)DanielDiaz
bimaps460.0bijections with multiple implementations. (benchmark, bsd3, data, library)ChristianHoener
binary32310.0Binary serialisation for Haskell values using lazy ByteStrings (benchmark, bsd3, data, library, parsing)DonaldStewart, IanLynagh, LennartKolmodin
binary-bits180.0Bit parsing/writing on top of binary. (bsd3, data, library, parsing)LennartKolmodin
binary-communicator60.0Flexible way to ease transmission of binary data. (bsd3, data, library)SoenkeHahn, YvesPares
binary-conduit1000.0data serialization/deserialization conduit library (conduit, library, mit)AlexanderVershilov, MathieuBoespflug
binary-derive40.0Automatic deriving of Binary using GHC.Generics (data, gpl, library)JaredHance
binary-enum100.0Simple wrappers around enum types (bsd3, data, library)tolysz
binary-ext130.0An alternate with typed errors for Data.Binary.Get monad from 'binary' library. (bsd3, data, library, parsing)warlock
binary-file300.0read/write binary file (bsd3, file, library)YoshikuniJujo
binary-generic110.0Generic binary serialisation using binary and syb. (bsd3, data, library, parsing)LarsPetersen
binary-ieee754490.0Backport ieee754 float double combinators to older binary (bsd3, data, library)winterland
binary-indexed-tree70.0Binary Indexed Trees (a.k.a. Fenwick Trees). (data, lgpl, library)MaxwellSayles
binary-list420.0Lists of length a power of two. (benchmark, bsd3, data, library)DanielDiaz
binary-literal-qq (deprecated)50.0Extends Haskell with binary literals. (bsd3, deprecated, language, library)MathieuBoespflug
binary-orphans860.0Orphan instances for binary (bsd3, library, web)phadej
binary-parser2070.0A highly-efficient but limited parser API specialised for bytestrings (binary, library, mit, parser)NikitaVolkov
binary-parsers530.0Extends binary with parsec/attoparsec style parsing combinators. (benchmark, bsd3, data, library)winterland
binary-protocol10.0Monad to ease implementing a binary network protocol. (bsd3, data, library)GregoryCrosswhite
binary-protocol-zmq40.0Monad to ease implementing a binary network protocol over ZeroMQ (bsd3, data, library, network)NicolasTrangez
binary-search510.0Binary and exponential searches (algorithms, bsd3, library)RossPaterson, TakayukiMuranushi
binary-serialise-cbor130.0Yet Another Binary Serialisation Library (compatibility shim) (bsd3, codec, library)BenGamari
binary-shared1230.0Sharing for the binary package (data, gpl, library)HamishMackenzie, JuergenNicklischFranken
binary-state100.0Simple wrapper around Data.Binary, which adds StateT to Get/Put monads. (bsd3, data, library)IlyaPortnov
binary-store (deprecated)10.0Format to store data using the binary transform. (bsd3, data, deprecated, library)DanielDiaz
binary-streams40.0data serialization/deserialization io-streams library (bsd3, data, io-streams, library)GregoryCollins, petterb
binary-strict440.0Binary deserialisation using strict ByteStrings (bsd3, data, library, parsing)AdamLangley, DominicSteinitz
binary-tagged1200.0Tagged binary serialisation. (benchmark, bsd3, library, web)phadej
binary-typed280.0Type-safe binary serialization (benchmark, bsd2, data, library, serialization)quchen
binarydefer90.0Binary serialization with deferred loading (bsd3, data, library)NeilMitchell
bind-marshal20.0Data marshaling library that uses type level equations to optimize buffering. (bsd3, data, library)CoreyOConnor
binding-core80.0Data Binding (bsd3, gui, library, user-interfaces)GideonSireling
binding-gtk60.0Data Binding in Gtk2Hs (bsd3, gui, library, user-interfaces)GideonSireling
binding-wx30.0Data Binding in WxHaskell (bsd3, gui, library, user-interfaces)GideonSireling
bindings (deprecated)90.0Deprecated package. (bsd3, deprecated, ffi, library)MauricioAntunes
bindings-DSL2032.0FFI domain specific language, on top of hsc2hs. (bsd3, ffi, library)DmitryMalikov, JohnWiegley, MauricioAntunes
bindings-EsounD50.0Low level bindings to EsounD (ESD; Enlightened Sound Daemon) (ffi, library, public-domain)MasatakeDaimon
bindings-GLFW1112.0Low-level bindings to GLFW OpenGL library (bsd3, graphics, library)BrianLewis, SchellScivally, javjarfer
bindings-K8055100.0Bindings to Velleman K8055 dll (bsd3, ffi, library)JorisPutcuyps
bindings-apr10.0Low level bindings to Apache Portable Runtime (APR) (ffi, library, public-domain)MasatakeDaimon
bindings-apr-util30.0Low level bindings to Apache Portable Runtime Utility (APR Utility) (ffi, library, public-domain)MasatakeDaimon
bindings-audiofile80.0Low level bindings to audiofile (ffi, library, public-domain)MasatakeDaimon
bindings-bfd70.0Bindings for libbfd, a library of the GNU `binutils' (development, ffi, lgpl, library)MichaelNelson
bindings-cctools70.0Bindings to the CCTools WorkQueue C library (ffi, gpl, library)BadiAbdulWahid
bindings-codec280.0Very low-level FFI bindings for Codec2 (bindings, codec, ffi, gpl, library, program)RickyElrod
bindings-common (deprecated in favor of bindings-DSL)340.0This package is obsolete. Look for bindings-DSL instead. (bsd3, deprecated, ffi, library)BasVanDijk, MauricioAntunes
bindings-dc139480.0Library for using firewire (iidc-1394) cameras (bsd3, library, system)VilleTirronen
bindings-directfb50.0Low level bindings to DirectFB (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-eskit20.0Bindings to ESKit. (bsd3, ffi, library, numerical)AndrewMiller
bindings-fann30.0Low level bindings to FANN neural network library. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-fluidsynth90.0Haskell FFI bindings for fluidsynth software synthesizer (bsd3, library, sound)BenGamari
bindings-friso50.0Low level bindings for friso (apache, ffi, library)cosmo0920
bindings-glib100.0Low level bindings to GLib. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-gobject90.0Low level bindings supporting GObject and derived libraries. (bsd3, ffi, library)MauricioAntunes, YurasShumovich
bindings-gpgme850.0Project bindings-* raw interface to gpgme (bsd3, ffi, library)DmitryMalikov, JohnWiegley, MauricioAntunes
bindings-gsl150.0Low level bindings to GNU GSL. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-gts50.0Low level bindings supporting GTS, the GNU Triangulated Surface Library (ffi, lgpl, library)JoelCrisp
bindings-hamlib50.0Hamlib bindings for Haskell (ffi, lgpl, library, program)RickyElrod
bindings-hdf570.0Project bindings-* raw interface to HDF5 library (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-levmar260.0Low level bindings to the C levmar (Levenberg-Marquardt) library (ffi, library, numerical)BasVanDijk, RoelVanDijk
bindings-libcddb70.0Low level binding to libcddb. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-libffi120.0Low level bindings to libffi. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-libftdi20.0Low level bindings to libftdi. (ffi, gpl, library)SivaramGowkanapalli
bindings-libg15110.0Bindings to libg15 (bsd2, library, web)Xandaros
bindings-librrd80.0Low level bindings to RRDtool (ffi, library, public-domain)MasatakeDaimon
bindings-libstemmer10.0Binding for libstemmer with low level binding. (ffi, library, mit)cosmo0920
bindings-libusb480.0Low level bindings to libusb. (bsd3, ffi, library)BasVanDijk, MauricioAntunes
bindings-libv4l260.0bindings to libv4l2 for Linux (bsd3, library, system)ClaudeHeilandAllen
bindings-libzip190.0Low level bindings to libzip. (bsd3, ffi, foreign, library)SergeyAstanin
bindings-linux-videodev230.0bindings to Video For Linux Two (v4l2) kernel interfaces (bsd3, graphics, library)ClaudeHeilandAllen
bindings-lxc140.0Direct Haskell bindings to LXC (Linux containers) C API. (bsd3, ffi, library)NickolayKudasov
bindings-mmap40.0(deprecated) see bindings-posix instead (bsd3, library, system)ClaudeHeilandAllen
bindings-monetdb-mapi30.0Low-level bindings for the MonetDB API (mapi) (bsd3, database, library)muesli4
bindings-mpdecimal (deprecated in favor of deka)50.0bindings to mpdecimal library (bsd3, deprecated, library, math)OmariNorman
bindings-nettle140.0bindings to nettle crypto library (bindings, gpl, library)ClintAdams
bindings-parport80.0parport bindings (bsd3, ffi, library)SivaramGowkanapalli
bindings-portaudio130.0Low-level bindings to portaudio library (bsd3, library, sound)FumiakiKinoshita
bindings-posix180.0Low level bindings to posix. (bsd3, ffi, library)BasVanDijk, JohnWiegley, MauricioAntunes
bindings-potrace70.0Low-level bindings to the potrace bitmap tracing library (gpl, graphics, library)cchalmers
bindings-ppdev40.0PPDev bindings (bsd3, ffi, library)SivaramGowkanapalli
bindings-saga-cmd70.0Wrapping saga_cmd (gpl, library, math, program)michelk
bindings-sane80.0FFI bindings to libsane (ffi, lgpl, library)ClintAdams
bindings-sc390.0Low-level bindings to the SuperCollider synthesis engine library. (ffi, gpl, library, sound)StefanKersten
bindings-sipc70.0Low level bindings to SIPC. (lgpl, library, program, security)JustinEthier
bindings-sophia80.0Low-level bindings to sophia library (bsd3, database, library)EyalLotem
bindings-sqlite3120.0Low level bindings to sqlite3. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-svm150.0Low level bindings to libsvm. (bsd3, ffi, library)PauloTanimoto, VilleTirronen
bindings-uname160.0Low-level binding to POSIX uname(3) (ffi, library, public-domain, system)MasatakeDaimon
bindings-wlc110.0Bindings against the wlc library (bsd3, ffi, library)ashleyis
bindings-yices100.0Bindings to the Yices theorem prover (ffi, foreign, library, public-domain, theorem-provers)PepeIborra
bindynamic10.0A variation of Data.Dynamic.Dynamic with a Binary instance (data, gpl, library)lspitzner
binembed60.0Embed data into object files. (bsd3, distribution, library, program)ClaudeHeilandAllen
binembed-example30.0Example project using binembed to embed data in object files. (bsd3, distribution, program)ClaudeHeilandAllen
bini152.0A collection of various methods for reading and writing bini files. (bsd3, configuration, data, library)TWeise
bio420.0A bioinformatics library (bioinformatics, lgpl, library)GwernBranwen, KetilMalde
bio-sequence (deprecated)120.0Initial project template from stack (bio, bsd3, deprecated, library)ozzzzz
bioace60.0Library for reading ace assembly files (bioinformatics, gpl, library)DanFornika
bioalign100.0Data structures and helper functions for calculating alignments (bioinformatics, gpl, library)DanFornika
biocore80.0A bioinformatics library (bioinformatics, lgpl, library)KetilMalde
biofasta100.0Library for reading fasta sequence files (bioinformatics, gpl, library)DanFornika
biofastq50.0A library for reading FASTQ files (bioinformatics, lgpl, library)KetilMalde
biohazard270.0bioinformatics support library (bioinformatics, bsd3, library)ustenzel
bioinformatics-toolkit210.0A collection of bioinformatics tools (benchmark, bio, library, mit)kaizhang
biophd190.0Library for reading phd sequence files (bioinformatics, gpl, library)DanFornika
biopsl70.0Library and executables for working with PSL files (bioinformatics, lgpl, library, program)KetilMalde
biosff170.0Library and executables for working with SFF files (bioinformatics, lgpl, library)KetilMalde
biostockholm120.0Parsing and rendering of Stockholm files (used by Pfam, Rfam and Infernal). (bioinformatics, bsd3, library)FelipeLessa
bird170.0A simple, sinatra-inspired web framework. (bsd3, library, program, web)MattParker
bit-array60.0A bit array (aka bitset, bitmap, bit vector) API for numeric types (bit-vectors, data-structures, library, mit, pretty-printer)NikitaVolkov
bit-stream190.0Lazy, infinite, compact stream of Bool with O(1) indexing. (benchmark, bsd3, library, unclassified)Bodigrim
bit-vector100.0Simple bit vectors for Haskell (bit-vectors, bsd3, data, library)AdamFoltzer
bitarray1410.0Mutable and immutable bit arrays (bsd3, data, library)BalazsKomuves
bitcoin-api112.0Provides access to the RPC API of Bitcoin Core (finance, library, mit, network)solatis
bitcoin-api-extra60.0Higher level constructs on top of the bitcoin-api package (finance, library, mit, network)solatis
bitcoin-block90.0Utility functions for manipulating bitcoin blocks (finance, library, mit, network)solatis
bitcoin-hs80.0Partial implementation of the Bitcoin protocol (as of 2013) (bitcoin, bsd3, cryptography, library)BalazsKomuves
bitcoin-payment-channel292.0Instant, two-party Bitcoin payments (benchmark, bitcoin, finance, library, network)runeks
bitcoin-rpc30.0Library to communicate with the Satoshi Bitcoin daemon (bitcoin, bsd3, library, network)JanVornberger
bitcoin-script140.0Compilation, manipulation and decompilation of Bitcoin scripts (finance, library, mit, network)solatis
bitcoin-tx100.0Utility functions for manipulating bitcoin transactions (finance, library, mit, network)solatis
bitcoin-types70.0Provides consistent low-level types used commonly among Bitcoin implementations (finance, library, mit, network)solatis
bitly-cli (deprecated)40.0A command line tool to access URL shortener. (bsd3, deprecated, program, utils, web)SergeyAstanin
bitmap110.0A library for handling and manipulating bitmaps (rectangular pixel arrays). (bsd3, data, graphics, library)BalazsKomuves
bitmap-opengl80.0OpenGL support for Data.Bitmap. (bsd3, data, graphics, library)BalazsKomuves
bitmaps40.0Bitmap library (bsd3, codec, data, graphics, library)ByronJohnson
bits562.0Various bit twiddling and bitwise serialization primitives (bsd3, data, library, serialization)EdwardKmett, EricMertens, ryanglscott
bits-atomic320.0Atomic bit operations on memory locations for low-level synchronization (bsd3, concurrency, data, foreign, library)GabrielWicke
bits-bytestring100.0Bits instance for bytestrings. (benchmark, bsd3, data, library)oldmanmike
bits-bytestring-lazy120.0Bits instance for lazy bytestrings. (benchmark, bsd3, data, library)semaj
bits-conduit30.0Bitstream support for Conduit (benchmark, bsd3, conduit, data, library)HideyukiTanaka
bits-extras110.0Efficient high-level bit operations not found in Data.Bits (bsd3, data, library)GabrielWicke
bitset200.0A space-efficient set data structure. (benchmark, data-structures, library, mit)DenisBueno, FedorGogolev, SergeiLebedev
bitset-word8710.0Space efficient set of Word8 and some pre-canned sets useful for parsing HTTP (data, library, mit)nshimaza
bitspeak30.0Proof-of-concept tool for writing using binary choices. (accessibility, gpl, program)MauricioAntunes
bitstream60.0Fast, packed, strict and lazy bit streams with stream fusion (data, library, public-domain)MasatakeDaimon
bitstring70.0Lazy bit strings (bsd3, data, library)BalazsKomuves
bittorrent40.0Bittorrent protocol implementation. (bsd3, library, network)SamTruzjan
bitvec100.0Unboxed vectors of bits / dense IntSets (bit-vectors, data, library, public-domain)JamesCook
bitwise750.0fast multi-dimensional unboxed bit packed Bool arrays (benchmark, bit-vectors, bsd3, data, data-structures, library)ClaudeHeilandAllen
bitx-bitcoin371.5A Haskell library for working with the BitX bitcoin exchange. (bitcoin, bsd3, finance, library, web)tebello_thejane
bizzlelude290.0A lousy Prelude replacement by a lousy dude (bsd3, library, prelude)TheBizzle
bk-tree80.0BK-tree implementation (data-structures, library, public-domain)FrancescoMazzoli
bkr30.0Backup utility for backing up to cloud storage services (S3 only right now) (backup, bsd3, library, program, system)MichaelSmietana
bktrees220.0A set data structure with approximate searching (bsd3, data-structures, library)JosefSvenningsson
bla (deprecated)20.0a stupid cron (bsd3, deprecated, program, system)JinjingWang
black-jewel100.0The pirate bay client. (application, gpl, program)DmitryBogatov
blacktip30.0Decentralized, k-ordered unique ID generator. (apache, benchmark, database, library)bitemyapp
blake2112.0A library providing BLAKE2 (benchmark, cryptography, library, public-domain)jgalt
blakesum (deprecated)120.0The BLAKE SHA-3 candidate hashes, in Haskell (bsd3, cryptography, deprecated, library)KevinCantu
blakesum-demo (deprecated)30.0The BLAKE SHA-3 candidate hashes, in Haskell (bsd3, cryptography, deprecated, program)KevinCantu
blank-canvas1152.0HTML5 Canvas Graphics Library (bsd3, graphics, library)AndrewFarmer, AndyGill, ryanglscott
blas (deprecated in favor of hblas)160.0Bindings to the BLAS library (bsd3, deprecated, library, math)CarterSchonwald
blas-hs100.0Low-level Haskell bindings to Blas. (library, math, mit)Rufflewind
blastxml80.0Library for reading Blast XML output (bioinformatics, lgpl, library)KetilMalde
blatex132.0Blog in LaTeX (mit, program, web)2016rshah
blaze (deprecated)110.0None (bsd3, deprecated, library, unclassified)
blaze-bootstrap60.0Blaze helper functions for bootstrap pages (library, mit, web)AlexanderThiemann
blaze-builder84340.0Efficient buffered output. (bsd3, data, library)JasperVanDerJeugt, LeonSmith, SimonMeier
blaze-builder-conduit (deprecated in favor of conduit-extra)470.0Convert streams of builders to streams of bytestrings. (deprecated) (bsd3, conduit, data, deprecated, library)MichaelSnoyman
blaze-builder-enumerator890.0Enumeratees for the incremental conversion of builders to bytestrings. (bsd3, data, enumerator, library)MichaelSnoyman, SimonHengel, SimonMeier, ThomasSutton
blaze-colonnade70.0Helper functions for using blaze-html with colonnade (bsd3, library, web)andrewthad
blaze-from-html210.0Tool to convert HTML to BlazeHtml code. (bsd3, program, text)JasperVanDerJeugt
blaze-html69532.25A blazingly fast HTML combinator library for Haskell (bsd3, library, text)JasperVanDerJeugt, SimonMeier
blaze-html-contrib130.0Some contributions to add handy things to blaze html. (bsd3, library, web)AdityaBhargava
blaze-html-hexpat30.0A hexpat backend for blaze-html. (bsd3, library, text)JasperVanDerJeugt
blaze-html-truncate130.0A truncator for blaze-html (bsd3, library, text)MarcelRuegenberg
blaze-json50.0tiny library for encoding json (json, library, mit, text)HirotomoMoriwaki
blaze-markup68150.0A blazingly fast markup combinator library for Haskell (bsd3, library, text)DeepakJois, JasperVanDerJeugt
blaze-shields102.0create svg by Haskell (bsd3, library, web)Qinka
blaze-svg11342.0SVG combinator library (bsd3, graphics, library)BrentYorgey, DeepakJois
blaze-textual4600.0Fast rendering of common datatypes (bsd3, library, text)BryanOSullivan
blaze-textual-native (deprecated in favor of blaze-textual)30.0Fast rendering of common datatypes (deprecated) (bsd3, deprecated, library, text)MichaelSnoyman
blazeMarker90.0... (library, mit, unclassified)faleidel
blazeT140.0A true monad (transformer) version of the blaze-markup and blaze-html libraries (data, library, mit, text, web)johannesgerer
ble250.0Bluetooth Low Energy (BLE) peripherals (bsd3, library, program, unclassified)jkarni, scottmurphy09
blink1100.0Control library for blink(1) LED from ThingM (bsd3, hardware, library, program)DylanSimon
blip40.0Python to bytecode compiler. (bsd3, language, program)BerniePope
bliplib50.0Support code for Blip. (bsd3, development, library)BerniePope
blockchain160.0Generic blockchain implementation. (blockchain, bsd3, library)tgolson
blockhash30.0Blockhash perceptual image hash algorithm (bsd3, library, program, web)kseo
blocking-transactions60.0Composable, blocking transactions. (bsd3, concurrency, library)ChristopherLaneHinson
blogination (deprecated)80.0Very simple static blog software (bsd3, deprecated, library, program, web)ChrisDone
bloodhound851.75ElasticSearch client library for Haskell (bsd3, database, library, search)MichaelXavier, bitemyapp, ChrisAllen
bloodhound-amazonka-auth170.0Adds convenient Amazon ElasticSearch Service authentication to Bloodhound. (bsd3, library, web)MichaelXavier
bloomfilter1850.0Pure and impure Bloom Filter implementations. (bsd3, data, library)BryanOSullivan
bloomfilter-redis42.0Distributed bloom filters on Redis (using the Hedis client). (benchmark, bsd3, data, library)hesiod
blosum140.0BLOSUM generator (bioinformatics, gpl, library, program)GregorySchwartz
bloxorz70.0OpenGL Logic Game (game, gpl, program)ViktorDevecseri
blubber30.0The blubber client; connects to the blubber server. (game, gpl, program)alexander
blubber-server10.0The blubber server, serves blubber clients. (agpl, game, library, program)alexander
bluemix-sdk120.0Bindings to Bluemix APIs (bsd3, library, web)AlexanderThiemann
bluetile240.0full-featured tiling for the GNOME desktop environment (bsd3, program, system)JanVornberger
bluetileutils (deprecated in favor of bluetile)20.0Utilities for Bluetile (bsd3, deprecated, program, utils)JanVornberger
blunt (deprecated)221.5Convert between pointfree and pointful expressions. (deprecated, library, mit, program, web)fozworth
bmp2462.0Read and write uncompressed BMP image files. (codec, library, mit)BenLippmeier
bno055-haskell60.0Library for communication with the Bosch BNO055 orientation sensor (library, mit, system)eamsden
board-games160.0Three games for inclusion in a web server (game, gpl, library, web)HenningThielemann
bogocopy100.0Copy a directory tree, making zero-size sparse copies of big files. (bsd2, file-manager, program, system-tools, tools)phlummox
bogre-banana10.0 (bsd3, game-engine, library, program)DavidEichmann
bolt130.0Bolt driver for Neo4j (bsd3, database, library)bflyblue
boltzmann-samplers110.0Uniform random generators (data, generic, library, mit, random)lyxia
bond210.0Bond schema compiler and code generator (code-generation, compiler, language, library, mit, program)sapek, chwarr
bond-haskell110.0Runtime support for BOND serialization (benchmark, bsd3, data, library, parsing)blaze
bond-haskell-compiler110.0Bond code generator for Haskell (bsd3, language, library, program)blaze
bookkeeper150.0Anonymous records and overloaded labels (benchmark, bsd3, data-structures, library, program, records)jkarni, aminb
bookkeeper-permissions30.0Permissions for bookkeeper records (bsd3, data-structures, library, records)pkamenarsky
bookkeeping190.0A module for bookkeeping by double entry. (business, library, mit)arowM
bookkeeping-jp160.0Helper functions for Japanese bookkeeping. (business, library, mit)arowM
bool-extras180.0A fold function for Bool (bsd3, data, library)TomLokhorst
bool8520.0Alternative Bool type stored as byte (bsd3, foreign, library)HenningThielemann
boolean-like100.0Logical combinatory operations dealing with datatypes representing booleans by their constructors. (bsd3, control, library)Shou
boolean-list70.0convert numbers to binary coded lists (data, gpl, library)AlanHawkins
boolean-normal-forms20.0Boolean normal form: NNF, DNF & CNF (data, library, mit)phadej
boolexpr50.0Boolean expressions with various representations and search queries. (bsd3, data-structures, library, parsing, search)NicolasPouillard
bools (deprecated)70.0None (bsd3, deprecated, library, unclassified)
boolsimplifier120.0Simplification tools for simple propositional formulas. (bsd3, language, library, math)GershomBazerman
boomange650.0A bookmarks manager with an HTML generator (gpl, program, web)mgmillani
boombox80.0Chronokinetic stream sources and incremental consumers (bsd3, data, library)FumiakiKinoshita
boomerang450.0Library for invertible parsing and printing (bsd3, library, parsing, text)DagOdenhall, JeremyShaw
boomslang60.0Boomshine clone (game, program, public-domain)BrianLewis
bootstrap-types120.0Bootstrap CSS Framework type-safe interface (library, mit, web)andrewthad
bordacount170.0Implementation of the Borda count election method. (algorithms, bsd3, library)hverr
borel20.0Metering System for OpenStack metrics provided by Vaultaire. (bsd3, development, library)fractalcat
boring-game140.0An educational game (bsd3, library, program, web)checkraiser
boring-window-switcher160.0A boring window switcher. (bsd3, graphics, library, program)debugito
bot60.0bots for functional reactive programming (bsd3, frp, library, reactivity)ConalElliott
both100.0Like Maybe, but with a different Monoid instance. (data, library, mit)barrucadu
botpp70.0Build tool for Lambdabot (development, gpl, library, program, web)GwernBranwen
bound592.5Making de Bruijn Succ Less (bsd3, compilers-interpreters, language, library)EdwardKmett, EricMertens, ryanglscott
bound-gen70.0Unwrap Scope's with globally fresh values (compilers-interpreters, library, mit)jozefg
bounded-tchan (deprecated in favor of stm-chans)110.0Bounded Transactional channels (queues) (bsd3, concurrency, deprecated, library)ThomasDuBuisson
boundingboxes120.0A generic boundingbox for an arbitrary vector (bsd3, data, library)FumiakiKinoshita
bower-json742.0Read bower.json from Haskell (library, mit, web)hdgarrood
bowntz90.0audio-visual pseudo-physical simulation of colliding circles (demo, gpl, program)ClaudeHeilandAllen
box-tuples100.0A hack to use GHC.Prim primitives in GHCi (debug, ghc, library, mit)mniip
boxes8970.02D text pretty-printing library (bsd3, library, text)BrentYorgey, dfeuer
bpann70.0backpropagation neuronal network (ai, bsd3, library)RobertSteuck
braid70.0Types and functions to work with braids and Khovanov homology. (bsd3, library, math, program)saltza
brain-bleep110.0primitive imperative language (bsd3, language, program)AlanHawkins
brainfuck740.0Brainfuck interpreter (compilers-interpreters, gpl, library, program)GwernBranwen, abbradar
brainfuck-monad150.0BrainFuck monad (bsd3, compilers-interpreters, library)JoeyHess
brainfuck-tut180.0A simple BF interpreter. (bsd3, language, library, program)alleledev
brainheck140.0Brainh*ck interpreter in haskell (benchmark, bsd3, library, program, web)vmchale
break160.0Break from a loop (bsd3, control, library)GabrielGonzalez
breakout20.0A simple Breakout game implementation. (game, gpl, program)EyalLotem
breve270.0a url shortener (mit, program, web)rnhmjoj
brians-brain60.0A Haskell implementation of the Brian's Brain cellular automaton (bsd3, game, program)WillDonnelly
brick5122.75A declarative terminal user interface library (bsd3, graphics, library)JonathanDaugherty
bricks220.0Bricks is a lazy functional language based on Nix. (apache, language, library)chris_martin
brillig40.0Simple part of speech tagger (bsd3, library, natural-language-processing, program)EricKow
brittany440.0Haskell source code formatter (agpl, language, library)lspitzner
broadcast-chan100.0Broadcast channel type that avoids 0 reader space leaks. (bsd3, library, system)MerijnVerstraaten
broccoli60.0Small library for interactive functional programs. (bsd3, frp, library)evanrinehart
broker-haskell10.0Haskell bindings to Broker, Bro's messaging library. (bsd3, language, library)DavidBanas
browscap120.0A reader and interface for the Browser Capabilities Project data files. (bsd3, data, library, web)davean
bsd-sysctl580.0Access to the BSD sysctl(3) interface (bsd, bsd3, library, system)MaximeHenrion, palik
bson1340.0BSON documents are JSON-like objects with a standard binary encoding. (data, library)FedorGogolev, GregWeber, MaximMitroshin, TonyHannan, VictorDenisov
bson-generic110.0Generic functionality for BSON (bsd3, data, library)PetrPilar
bson-generics (deprecated in favor of bson-generic)30.0Generics functionality for BSON (bsd3, data, deprecated, library)PetrPilar
bson-lens50.0BSON lenses (development, library, mit)WilliamCasarin
bson-mapping190.0Mapping between BSON and algebraic data types. (data, library)FrancescoMazzoli, ak3n
bspack120.0A simple and fast bytestring packer (benchmark, bsd3, data, library)nicolasdp
bsparse90.0A simple unassuming parser for bytestring (bsd3, bsparse, library)VincentHanquez, nicolasdp
btree60.0B-Tree on the compact heap (benchmark, bsd3, library, web)andrewthad
btree-concurrent60.0A backend agnostic, concurrent BTree (data-structures, lgpl, library)JohanBrinch
btrfs180.0Bindings to the btrfs API (bsd3, filesystem, library, system)MariosTitas
buchhaltung110.0Automates most of your plain text accounting data entry in ledger format. (finance, library, mit, program)johannesgerer
buffer-builder280.0Library for efficiently building up buffers, one piece at a time (benchmark, bsd3, data, library)chadaustin, afriesen
buffer-builder-aeson120.0Serialize Aeson values with Data.BufferBuilder (benchmark, data, library, mit)chadaustin, afriesen
buffer-pipe70.0Read from stdin and write to stdout in large blocks (bsd3, console, program)HenningThielemann
buffon10.0An implementation of Buffon machines. (bsd2, library, math)DerekElkins
bug410.0Better alternatives to the "error" function (development, error-handling, library, mit)HerbertValerioRiedel, NikitaVolkov
bugzilla60.0A Haskell interface to the Bugzilla native REST API (bsd3, library, web)swift, sethfowler
buildable40.0Typeclass for builders of linear data structures (data, library, mit)IvanMiljenovic
buildbox500.0Rehackable components for writing buildbots and test harnesses. (bsd3, development, library, testing)BenLippmeier
buildbox-tools60.0Tools for working with buildbox benchmark result files. (bsd3, development, program, testing)BenLippmeier
buildwrapper780.0A library and an executable that provide an easy API for a Haskell IDE (bsd3, development, library, program)JeanPhilippeMoresmau
bullet100.0A wrapper for the Bullet physics engine. (bsd3, library, physics)CsabaHruska
bumper150.0Automatically bump package versions, also transitively. (bsd3, development, program)AdamBergmark, BramSchuur, ErikHesselink
burnt-explorer80.0List OP_RETURN cryptocurrency transaction outputs. (apache, cryptocurrency, program)KrzysiekJ
burst-detection30.0Burst detection algorithms (benchmark, gpl, library, math)AlexanderVershilov
bus-pirate160.0Haskell interface to the Bus Pirate binary interface (bsd3, library, system)BenGamari
buster180.0Almost but not quite entirely unlike FRP (bsd3, frp, library)JeffersonHeard
buster-gtk20.0Almost but not quite entirely unlike FRP (bsd3, frp, library)JeffersonHeard
buster-network40.0Almost but not quite entirely unlike FRP (bsd3, frp, library)JeffersonHeard
bustle200.0Draw sequence diagrams of D-Bus traffic (desktop, network, program)WillThompson, pwithnall
butcher1350.0Chops a command or program invocation into digestable pieces. (bsd3, library, ui)lspitzner
butterflies20.0butterfly tilings (gpl, graphics, library, program)ClaudeHeilandAllen
bv210.0Bit-vector arithmetic library (bit-vectors, bsd3, data, library)IagoAbal
byline140.0Library for creating command-line interfaces (colors, menus, etc.) (bsd2, library, system, user-interfaces)PeterJones
bytable190.0data from/to ByteString (bsd3, codec, library)YoshikuniJujo
byteable52850.0Type class for sequence of bytes (bsd3, data, library)VincentHanquez
bytedump150.0Flexible byte dump helpers for human readers. (bsd3, debug, library)VincentHanquez
byteorder25290.0Exposes the native endianness or byte ordering of the system. (bsd3, library, system)AntoineLatter
bytes15302.0Sharing code for serialization between binary and cereal (bsd3, data, library, serialization)EdwardKmett, EricMertens, ryanglscott
byteset90.0Set of bytes. (bsd3, data, library)DanielDiaz
bytestring19332.75Fast, compact, strict and lazy byte strings with a list interface (bsd3, data, library)DonaldStewart, DuncanCoutts, HerbertValerioRiedel, IanLynagh
bytestring-arbitrary322.0Arbitrary instances for ByteStrings (benchmark, bsd3, data, library)tsuraan
bytestring-builder50080.0The new bytestring builder, packaged outside of GHC (bsd3, data, library)LeonSmith
bytestring-class (deprecated)20.0Classes for automatic conversion to and from strict and lazy bytestrings. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
bytestring-conversion720.0Type-classes to convert values to and from ByteString. (benchmark, data, library, mpl)ToralfWittner
bytestring-csv420.0Parse CSV formatted data efficiently (bsd3, data, library)DonaldStewart
bytestring-delta70.0Simple, fast binary diff/patch (data, library, mit)JoeyAdams
bytestring-from (deprecated in favor of bytestring-conversion)90.0A type-class to convert values from ByteString. (data, deprecated, library)ToralfWittner
bytestring-handle250.0ByteString-backed Handles (bsd3, library, system)GaneshSittampalam
bytestring-lexing1770.0Parse and produce literals efficiently from strict or lazy bytestrings. (bsd2, data, library)DonaldStewart, WrenThornton
bytestring-mmap980.0mmap support for strict ByteStrings (bsd3, library, system)DonaldStewart
bytestring-nums400.0Parse numeric literals from ByteStrings. (bsd3, library, text)JasonDusek
bytestring-plain280.0Plain byte strings ('ForeignPtr'-less 'ByteString's) (bsd3, data, library)HerbertValerioRiedel
bytestring-progress190.0A library for tracking the consumption of a lazy ByteString (bsd3, control, library)AdamWick
bytestring-read60.0fast ByteString to number converting library (benchmark, data, library, mit)HirotomoMoriwaki
bytestring-rematch10.0Rematch support for ByteString (control, library, mit)TomCrayford
bytestring-short120.0Backport copy of ShortByteString (bsd3, library, text)KeiHibino
bytestring-show1520.0Efficient conversion of values into readable byte strings. (bsd3, library, text)DanDoel
bytestring-strict-builder1980.0An efficient strict bytestring builder (benchmark, builders, bytestring, library, mit, serialization, text)NikitaVolkov
bytestring-time (deprecated in favor of text-time)90.0Library for Time parsing from ByteString (bsd3, data, deprecated, library)klangner
bytestring-tree-builder1520.0A very efficient ByteString builder implementation based on the binary tree (benchmark, bytestring, library, mit)NikitaVolkov
bytestring-trie5712.25An efficient finite map from (byte)strings to values. (bsd3, data, data-structures, library)WrenThornton
bytestring-typenats30.0Bytestrings with typenat lengths (benchmark, bsd3, data, library)tsuraan
bytestringparser90.0Combinator parsing with Data.ByteString.Lazy (bsd3, library, parsing, text)BryanOSullivan
bytestringparser-temporary130.0Combinator parsing with Data.ByteString.Lazy (bsd3, library, parsing, text)JasonDusek
bytestringreadp80.0A ReadP style parser library for ByteString (bsd3, library, text)GracjanPolak
byteunits610.0Human friendly conversion between byte units (KB, MB, GB...) (bsd3, library)chrissound
bzlib1560.0Compression and decompression in the bzip2 format (bsd3, codec, library)DuncanCoutts
bzlib-conduit220.0Streaming compression/decompression via conduits. (benchmark, bsd3, codec, library)HideyukiTanaka, MichaelSnoyman
c-dsl90.0A higher level DSL on top of language-c (language, library, mit)jozefg
c-io60.0C IO. (bsd3, library, system)MattMorrow
c-mosquitto740.0Simpe mosquito MQTT binding able to work with the Amazons IoT (bsd3, library, program)tolysz
c-storable-deriving1290.0Generate C-like storable instances from datatypes (bsd3, foreign, library)MatthewMaurer
c0check50.0Simple C0 Syntax Check (gpl, language, program)DanielSeidel, JanisVoigtlaender
c0parser80.0Simple C0 Parser (gpl, language, library)DanielSeidel, JanisVoigtlaender
c10k110.0C10k server library using prefork (bsd3, library, network)KazuYamamoto
c2ats80.0Translate C code into ATS (gpl, language, library, program)KiwamuOkabe
c2hs4000.0C->Haskell FFI tool that gives some cross-language type safety (development, gpl, program)DuncanCoutts, IanRoss, deech
c2hs-extra100.0Convenient marshallers for complicate C types. (development, foreign, library, mit)sighingnow
c2hsc190.0Convert C API header files to .hsc and .hsc.helper.c files (bsd3, development, program)JohnWiegley
cab690.0A maintenance command of Haskell cabal packages (bsd3, distribution, library, program)KazuYamamoto
cabal (deprecated in favor of Cabal)120.0placeholder for Cabal package, you want the upper case Cabal (bsd2, deprecated, development, library)CarterSchonwald, DuncanCoutts, HerbertValerioRiedel
cabal-audit40.0Check how up-to-date your .cabal dependencies are. (distribution, mit, program)JoelTaylor
cabal-bounds670.0A command line program for managing the bounds/versions of the dependencies in a cabal file. (bsd3, development, library, program, utils)DanielTrstenjak
cabal-cargs360.0A command line program for extracting compiler arguments from a cabal file. (bsd3, development, library, program, utils)DanielTrstenjak
cabal-constraints20.0Repeatable builds for cabalized Haskell projects. (development, distribution, mit, program)BenArmston
cabal-db202.0query tools for the local cabal database (bsd3, program, tools)VincentHanquez
cabal-debian1250.0Create a Debianization for a Cabal package (bsd3, debian, distribution, library, program, system)DavidFox
cabal-dependency-licenses180.0Compose a list of a project's transitive dependencies with their licenses (bsd3, distribution, program)JasperVanDerJeugt
cabal-dev (deprecated in favor of cabal-install)340.0Manage sandboxed Haskell build environments (bsd3, deprecated, development, program)JonathanDaugherty, JoshHoyt, RoganCreswick
cabal-dir120.0show dist dir of 'cabal copy/install' (bsd3, distribution, program)YoshikuniJujo
cabal-doctest59672.0A Setup.hs helper for doctests running (bsd3, distribution, library)phadej
cabal-file-th170.0Template Haskell expressions for reading fields from a project's cabal file. (bsd3, development, library)NickPartridge, SimonMichael
cabal-ghc-dynflags40.0Conveniently configure GHC's dynamic flags for use with Cabal projects (bsd3, development, library)BenGamari
cabal-ghci (deprecated in favor of cabal-install)120.0Set up ghci with options taken from a .cabal file (bsd3, deprecated, development, library, program)EtienneLaurin
cabal-graphdeps100.0Generate graphs of install-time Cabal dependencies (development, mit, program)JohnMillikin
cabal-helper8600.0Simple interface to some of Cabal's configuration state used by ghc-mod (agpl, distribution, library, program)DanielG
cabal-info110.0Read information from cabal files (development, library, mit, program)barrucadu
cabal-install19802.5The command-line interface for Cabal and Hackage. (bsd3, distribution, program)AndresLoeh, DuncanCoutts, JohanTibell, MikhailGlushenkov, ryant
cabal-install-bundle130.0The (bundled) command-line interface for Cabal and Hackage. (bsd3, distribution, program)BartoszCwiklowski
cabal-install-ghc7240.0Temporary version of cabal-install for ghc-7.2 (bsd3, distribution, program)TonyHannan
cabal-install-ghc7430.0Temporary version of cabal-install for ghc-7.4 (bsd3, distribution, program)AndreasAbel
cabal-lenses270.0Lenses and traversals for the Cabal library. (bsd3, development, library, utils)DanielTrstenjak
cabal-macosx672.0Cabal support for creating Mac OSX application bundles. (bsd3, distribution, library, program)EricKow, dfrancesconi
cabal-meta270.0build multiple packages at once (bsd3, development, library, program)GregWeber
cabal-mon50.0A monitor for cabal builds (development, mit, program)IavorDiatchki
cabal-nirvana (deprecated)60.0Avoid Cabal dependency hell by constraining to known good versions. (deprecated) (bsd3, deprecated, distribution, program)MichaelSnoyman
cabal-plan160.0Library and utiltity for processing cabal's plan.json file (development, gpl, library)HerbertValerioRiedel
cabal-progdeps10.0Show dependencies of program being built in current directory (bsd3, distribution, program)KevinQuick
cabal-query20.0Helpers for quering .cabal files or hackageDB's 00-index.tar (bsd3, library, system)MaxDesyatov
cabal-rpm952.0RPM packaging tool for Haskell Cabal-based packages (distribution, gpl, program)BryanOSullivan, JensPetersen
cabal-scripts70.0Shell scripts for support of Cabal maintenance (bsd3, development, library)HenningThielemann
cabal-setup70.0The user interface for building and installing Cabal packages (bsd3, distribution, program)DuncanCoutts
cabal-sign110.0Sign and verify Cabal packages. (bsd3, development, program)ChrisDone
cabal-sort130.0Topologically sort cabal packages (bsd3, distribution, program)HenningThielemann
cabal-src (deprecated in favor of stack)200.0Alternative install procedure to avoid the diamond dependency issue. (bsd3, deprecated, distribution, program)MichaelSnoyman
cabal-test10.0Automated test tool for cabal projects. (bsd3, program, testing)DavidHimmelstrup
cabal-test-bin100.0A program for finding temporary build file during cabal-test. (bsd3, library, program, testing)junjihashimoto
cabal-test-compat (deprecated)70.0Compatibility interface of cabal test-suite. (bsd3, deprecated, library, testing)KeiHibino
cabal-test-quickcheck240.0QuickCheck for Cabal (library, mit, testing)TimothyJones
cabal-uninstall690.0Uninstall cabal packages (bsd3, distribution, program)JanChristiansen
cabal-upload70.0Command-line tool for uploading packages to Hackage (bsd3, distribution, program)BjornBringert
cabal2arch (deprecated)470.0Create Arch Linux packages from Cabal packages. (bsd3, deprecated, distribution, program)DonaldStewart, MagnusTherning, PeterSimons
cabal2doap50.0Cabal to Description-of-a-Project (DOAP) (bsd3, distribution, program)GregHeartsfield
cabal2ebuild150.0make gentoo's .ebuild file from .cabal file (bsd3, distribution, library, program)YoshikuniJujo
cabal2ghci100.0A tool to generate .ghci file from .cabal (bsd3, development, program)HiromiIshii
cabal2nix1910.0Convert Cabal files into Nix build instructions. (bsd3, distribution, library, nix, program)PeterSimons
cabal2spec20.0Generates RPM Spec files from cabal files (gpl, program, system)YaakovNemoy
cabalQuery20.0A simple tool to query cabal files. (bsd3, development, library, program)RoganCreswick
cabalg180.0alias for cabal install from given git repo (library, mit, program, unclassified)DmitryMalikov
cabalgraph70.0Generate pretty graphs of module trees from cabal files (bsd3, distribution, program)DonaldStewart
cabalish140.0Provides access to the cabal file data for shell scripts (bsd3, program, utilities)RobertFischer
cabalmdvrpm10.0Create mandriva rpm from cabal package (distribution, gpl, library, program)OlivierThauvin
cabalrpmdeps30.0Autogenerate rpm dependencies from cabal files (distribution, gpl, library, program)OlivierThauvin
cabalvchk90.0Verify installed package version against user-specified constraints. (bsd3, distribution, program)KevinQuick
cabin90.0Cabal binary sandboxes. (bsd3, distribution, program)nclarke
cabocha100.0 (bsd3, library, natural-language-processing)MiyazawaAkira
cache90.0An in-memory key/value store with expiration support (bsd3, cache, data, library)hverr
cached-io120.0A simple library to cache a single IO action with timeout (apache, development, library, program)pjrt, taphu, potomak, glasserc, mhova
cached-traversable70.0Transparent, persistent caching of lazy, traversable structures (bsd3, data, library)ThomasTuegel
cacophony262.0A library implementing the Noise protocol. (benchmark, cryptography, library, public-domain)jgalt
caf90.0A library of Concurrency Abstractions using Futures. (bsd3, concurrency, library)MartinaWillig
cafeteria-prelude60.0Prelude subsets—take only what you want! (library, mit, prelude)scottflesichman, scottfleischman
caffegraph32.0 (bsd3, library, math)ajtulloch
cairo7762.0Binding to the Cairo library. (bsd3, graphics, library)AndyStewart, AxelSimon, DanielWagner, DuncanCoutts, HamishMackenzie
cairo-appbase110.0A template for building new GUI applications using GTK and Cairo. (bsd3, development, program)ConradParker
cairo-canvas150.0Simpler drawing API for Cairo. (graphics, library, mit)apirogov
cake130.0A build-system library and driver (development, gpl, library, program)JeanPhilippeBernardy
cake3150.0Third cake the Makefile EDSL (bsd3, development, library, program)SergeyMironov
cakyrespa220.0run turtle like LOGO with lojban (bsd3, program, teaching)YoshikuniJujo
cal3d60.0Haskell binding to the Cal3D animation library. (animation, graphics, lgpl, library)GregoryWeber
cal3d-examples40.0Examples for the Cal3d animation library. (animation, gpl, graphics, program)GregoryWeber
cal3d-opengl20.0OpenGL rendering for the Cal3D animation library (animation, graphics, lgpl, library)GregoryWeber
calc10.0A small compiler for arithmetic expressions. (bsd3, program, unclassified)AustinSeipp
calculator362.0A calculator repl, with variables, functions & Mathematica like dynamic plots. (gpl, math, program)sumitsahrawat
caldims10.0Calculation tool and library supporting units (gpl, library, math, program)RickKaudewitz
caledon162.25a logic programming language based on the calculus of constructions (gpl, interpreter, language, program)MatthewMirman
calendar-recycling70.0List years with the same calendars (bsd3, math, program)HenningThielemann
call180.0The call game engine (bsd3, game, library)FumiakiKinoshita
call-haskell-from-anything140.0Call Haskell functions from other languages via serialization and dynamic libraries (library, mit, network, program)NiklasHambuechen
call-stack79260.0Use GHC call-stacks in a backward compatible way (data, library, mit)SimonHengel
camfort240.0CamFort - Cambridge Fortran infrastructure (apache, language, library, program)DominicOrchard, madgen
camh120.0write image files onto 256(or 24bit) color terminals. (bsd3, graphics, program)HironaoKomatsu
campfire30.0Haskell implementation of the Campfire API (bsd3, library, web)MichaelXavier
canonical-filepath40.0Abstract data type for canonical file paths. (bsd3, library, system)ThomasSchilling
canteven-config70.0A pattern for configuring programs. (apache, library, unclassified)pjrt, taphu, potomak, glasserc, mhova
canteven-http270.0Utilities for HTTP programming. (library, mit, unclassified)taphu, potomak, glasserc
canteven-listen-http160.0data types to describe HTTP services (apache, development, library)pjrt, taphu, potomak, glasserc, mhova
canteven-log190.0A canteven way of setting up logging for your program. (apache, development, library)pjrt, taphu, potomak, glasserc, mhova
canteven-parsedate10.0Date / time parsing utilities that try to guess the date / time format. (apache, library, unclassified)taphu
canteven-template110.0A few utilites and helpers for using Template Haskell in your projects. (apache, library, web)pjrt, taphu, potomak, glasserc, mhova
cantor50.0Application for analysis of java source code (application, bsd3, program, source-code-analysis)klangner
cao40.0CAO Compiler (compiler, cryptography, gpl, language, program)paufil, tfaoliveira, mbbarbosa
cap40.0Interprets and debug the cap language. (bsd3, language, program)ThomasDavie
capped-list (deprecated in favor of enumerator)80.0A list-like type for lazy sequences, with a user-defined termination value. (bsd3, data, deprecated, library)JohnMillikin
capri70.0A simple wrapper over cabal-install to operate in project-private mode. (bsd3, distribution, program)DmitryGolubovsky
car-pool50.0Simple web-server for organizing car-pooling for an event (bsd3, program, web)HenningThielemann
caramia210.0High-level OpenGL bindings (graphics, library, mit)Adeon
carbonara130.0some spaghetti code (bsd3, library, system)szehk
carboncopy30.0Drop emails from threads being watched into special CC folder. (bsd3, email, program)EugenyDzhurinsky
carettah292.0A presentation tool written with Haskell. (gpl, graphics, program)KiwamuOkabe
carray390.0A C-compatible array library. (benchmark, bsd3, data, library)HenningThielemann, JedBrown
carte62.0Carte: A commandline pastebin server. (gpl, network, program)cdetroye
cartel280.0Specify Cabal files in Haskell (bsd3, distribution, library, program)OmariNorman
casa-abbreviations-and-acronyms100.0CASA Abbreviations and Acronyms (aviation, library)TonyMorris
casadi-bindings520.0mid-level bindings to CasADi (lgpl, library, math, numerical)GregHorn
casadi-bindings-control (deprecated in favor of casadi-bindings-core)10.0low level bindings to casadi-control (deprecated, lgpl, library, math, numerical)GregHorn
casadi-bindings-core220.0autogenerated low level bindings to casadi (lgpl, library, math, numerical)GregHorn
casadi-bindings-internal160.0low level bindings to CasADi (lgpl, library, math, numerical)GregHorn
casadi-bindings-ipopt-interface (deprecated in favor of casadi-bindings-core)50.0low level bindings to casadi-ipopt_interface (deprecated, lgpl, library, math, numerical)GregHorn
casadi-bindings-snopt-interface (deprecated in favor of casadi-bindings-core)20.0low level bindings to casadi-snopt_interface (deprecated, lgpl, library, math, numerical)GregHorn
cascading (deprecated in favor of clay)10.0DSL for HTML CSS (Cascading Style Sheets) (bsd3, deprecated, library, web)ErtugrulSoeylemez, esz
case-conversion140.0Convert between different cases (bsd3, library, program, text)AlanHawkins
case-insensitive70160.0Case insensitive string comparison (benchmark, bsd3, data, library, text)BasVanDijk
case-insensitive-match90.0A simplified, faster way to do case-insensitive matching. (benchmark, bsd3, library, program, text)mikehat
cased40.0Track string casing in its type (library, mit, text)WilliamCasarin
cases180.0A converter for spinal, snake and camel cases (benchmark, library, mit, text)NikitaVolkov
cash20.0the Computer Algebra SHell (bsd3, computer-algebra, library, math)ChrisBrown
casing190.0Convert between various source code casing conventions (library, mit, text)TobiasDammers
casr-logbook320.0CASR 61.345 Pilot Personal Logbook (aviation, library)TonyMorris
casr-logbook-html60.0CASR 61.345 Pilot Personal Logbook HTML output (aviation, library)TonyMorris
casr-logbook-meta70.0Meta-information about entries in a CASR 61.345 logbook (casr-logbook) (aviation, library)TonyMorris
casr-logbook-meta-html80.0Meta-information about entries in a CASR 61.345 logbook (casr-logbook) HTML output (aviation, library)TonyMorris
casr-logbook-reports40.0CASR 61.345 logbook (casr-logbook) reports. (aviation, library)TonyMorris
casr-logbook-reports-html40.0CASR 61.345 logbook reports HTML output (aviation, library)TonyMorris
casr-logbook-reports-meta50.0Reports on meta-information about entries in a CASR 61.345 logbook (casr-logbook) (aviation, library)TonyMorris
casr-logbook-reports-meta-html60.0HTML output for reports on meta-information about entries in a CASR 61.345 logbook (aviation, library)TonyMorris
casr-logbook-types50.0CASR 61.345 Pilot Personal Logbook (aviation, library)TonyMorris
cassandra-cql142.25Haskell client for Cassandra's CQL protocol (bsd3, database, library)StephenBlackheath, kayceesrk
cassandra-thrift210.0thrift bindings to the cassandra database (database, library)KirkPeterson, OzgunAtaman
cassava8232.5A CSV parsing and encoding library (bsd3, csv, library, text, web)HerbertValerioRiedel, JohanTibell
cassava-conduit300.0Conduit interface for cassava package (benchmark, bsd3, data, library)domdere
cassava-embed401.25CSV-file embedding library (bsd3, csv, library, text)typeable
cassava-megaparsec100.0Megaparsec parser of CSV files that plays nicely with Cassava (csv, library, mit, parsing, text, web)jsl, stackbuilders, mrkkrp
cassava-streams80.0io-streams interface for the cassava CSV library. (bsd3, csv, data, io-streams, library, text)PeterJones
cassette40.0A combinator library for simultaneously defining parsers and pretty printers. (bsd3, library, parsing, text)MathieuBoespflug
cassy140.0A high level driver for the Cassandra datastore (bsd3, database, library)OzgunAtaman
cast172.0Abstact cast pattern (bsd3, library, pattern)ozzzzz
castle20.0A tool to manage shared cabal-install sandboxes. (apache, development, program)EricRochester
casui10.0Equation Manipulator (math, mit, program)EtienneLaurin
catamorphism60.0A package exposing a helper function for generating catamorphisms. (bsd3, development, library)frerich
catch-fd60.0MonadThrow and MonadCatch, using functional dependencies (bsd3, control, library)AndySonnenburg
categorical-algebra20.0Categorical Monoids and Semirings (bsd3, data, library)JonathanFischoff
categories600.0Categories (bsd3, control, library)EdwardKmett
category-extras270.0A meta-package documenting various packages inspired by category theory (bsd3, comonads, control, library, monads)DanDoel, DanielWagner, EdwardKmett, RussellOConnor
category-printf130.0Highbrow approach to type-safe printf format specifications. (bsd3, library, text)CaleGibbard
category-traced40.0Traced monoidal categories (bsd3, library, math)MatthewFarkasDyck
catnplus70.0Simple tool to display text files with line numbers and paging (command-line-tool, mit, program)rcook
cautious-file110.0Ways to write a file cautiously, to reduce the chances of problems such as data loss due to crashes or power failures (bsd3, library, system)CoreyOConnor, RobinGreen
cayley-client330.0A Haskell client for the Cayley graph database (bsd3, database, library)MichelBoucey
cayley-dickson200.0Complex numbers, quaternions, octonions, sedenions, etc. (algebra, library, math, mit)lmj
cblrepo610.0Tool to maintain a database of CABAL packages and their dependencies (distribution, program, utils)MagnusTherning
cbor-tool120.0A tool for manipulating CBOR. (bsd3, codec, program)BenGamari
cborg10022.5Concise Binary Object Representation (bsd3, codec, library)AustinSeipp, BenGamari, DuncanCoutts, HerbertValerioRiedel
cborg-json100.0A library for encoding JSON as CBOR (bsd3, codec, library)BenGamari
cci60.0Bindings for the CCI networking library (bsd3, library, network)FacundoDominguez
ccnx20.0A Haskell implementation of the CCNx network protocol. (bsd3, library, network)TomHawkins
cctools-workqueue30.0High-level interface to CCTools' WorkQueue library (distributed-computing, gpl, library)BadiAbdulWahid
cedict70.0Convenient Chinese phrase & character lookup. (gpl, library, program, text)JasonDusek
cef160.0CEF log format (bsd3, library, system)utdemir
cef3-raw90.0Raw CEF3 bindings (bsd3, ffi, library)MaksymilianOwsianny
cef3-simple40.0Simple wrapper around cef3-raw (bsd3, ffi, library)MaksymilianOwsianny
ceilometer-common40.0Common Haskell types and encoding for OpenStack Ceilometer (bsd3, development, library)fractalcat
cellrenderer-cairo20.0Cairo-based CellRenderer (bsd3, graphics, library)JohnLato
celtchar80.0A tool to build a novel (library, mit, program, text)lethom
cerberus (deprecated)60.0Protect and control API access with cerberus (bsd3, deprecated, development, library, program)yogsototh
cereal75862.0A binary serialization library (bsd3, data, library, parsing)EricMertens, TrevorElliott
cereal-conduit510.0Turn Data.Serialize Gets and Puts into Sources, Sinks, and Conduits (bsd3, conduit, library)MichaelSnoyman, MylesMaxfield
cereal-derive30.0Automatic deriving of Serialize using GHC.Generics (data, gpl, library)JaredHance
cereal-enumerator70.0Deserialize things with cereal and enumerator (library, public-domain, text)PatrickPalka
cereal-ieee754 (deprecated in favor of cereal)10.0Floating point support for the 'cereal' serialization library (bsd3, data, deprecated, library, parsing)JacobStanley
cereal-io-streams40.0io-streams support for the cereal binary serialization library (benchmark, bsd3, data, io-streams, library, parsing)MichaelXavier
cereal-plus100.0An extended serialization library on top of "cereal" (library, mit, serialization)NikitaVolkov
cereal-streams (deprecated in favor of wire-streams)90.0Use cereal to encode/decode io-streams. (benchmark, bsd3, data, deprecated, io-streams, library, parsing)winterland
cereal-text1150.0Data.Text instances for the cereal serialization library (apache, data, library)ulikoehler
cereal-vector10580.0Serialize instances for Data.Vector types. (bsd3, data, library)AdamFoltzer
certificate (deprecated in favor of x509)930.0Certificates and Key Reader/Writer (bsd3, data, deprecated, library)VincentHanquez
cf132.0Exact real arithmetic using continued fractions (library, math, mit)mvr
cfipu50.0cfipu processor for toy brainfuck-like language (bsd3, compilers-interpreters, program)ByronJohnson
cflp290.0Constraint Functional-Logic Programming in Haskell (bsd3, control, library)SebastianFischer
cfopu (deprecated in favor of cfipu)40.0cfopu processor (bsd3, compilers-interpreters, deprecated, program)ByronJohnson
cg10.0Parser for categorial grammars. (gpl, language, program)pepijnkokke
cgen110.0generates Haskell bindings and C wrappers for C++ libraries (bsd3, development, library, program)AnttiSalonen
cgi1900.0A library for writing CGI programs (bsd3, library, network)AndersKaseorg, BjornBringert, IanLynagh, MaxBolingbroke, cheecheeo
cgi-undecidable50.0Undecidable instances for the cgi package. (bsd3, library, unclassified)BjornBringert
cgi-utils100.0Simple modular utilities for CGI/FastCGI (sessions, etc.) (bsd3, cgi, library, web)
cgrep780.0Command line tool (gpl, program, utils)awgn, NicolaBonelli
chain-codes70.0Library decoding chain codes from images (data, gpl, library)MateuszKowalczyk
chalk150.0Terminal string styling. (library, mit, system)cattheory
chalkboard100.0Combinators for building and processing 2D images. (bsd3, graphics, library)AndyGill
chalkboard-viewer30.0OpenGL based viewer for chalkboard rendered images. (bsd3, graphics, library)AndyGill
chalmers-lava2000290.0Hardware description EDSL (bsd3, hardware, language, library)EmilAxelsson
chan-split150.0Concurrent Chans as read/write pairs. Also provides generic Chan pair class. (bsd3, concurrency, library)BrandonSimmons
change-monger70.0Parse VCS changelogs into ChangeLogs (bsd3, development, library, program, text)GwernBranwen
charade42.0Rapid prototyping websites with Snap and Heist (bsd3, library, program, web)DougBeardsley
charset9230.0Fast unicode character sets based on complemented PATRICIA tries (bsd3, data, library)EdwardKmett
charsetdetect130.0Character set detection using Mozilla's Universal Character Set Detector (lgpl, library, text)MaxBolingbroke
charsetdetect-ae560.0Character set detection using Mozilla's Universal Character Set Detector (lgpl, library, text)Artyom
chart-histogram (deprecated in favor of Chart)100.0Easily render histograms with Chart (bsd3, deprecated, graphics, library)BenGamari
chart-unit380.0Native haskell charts. (bsd3, charts, library, program)tonyday567
chaselev-deque530.0Chase & Lev work-stealing lock-free double-ended queues (deques). (bsd3, concurrent, data, library)BrandonSimmons, RyanNewton, peter_fogg
chatter342.0A library of simple NLP algorithms. (bsd3, library, natural-language-processing, program)RoganCreswick
chatty340.0Some monad transformers and typeclasses for abstraction of global dependencies. (agpl, library, text)implementation
chatty-text70.0Provides some classes and types for dealing with text, using the fundaments of Chatty. (agpl, library, text)implementation
chatty-utils170.0Some utilities every serious chatty-based application may need. (agpl, data, library)implementation
chatwork110.0The ChatWork API in Haskell (library, mit, program, web)matsubara0507
cheapskate5210.0Experimental markdown processor. (bsd3, library, program, text)JohnMacFarlane
cheapskate-highlight90.0Code highlighting for cheapskate (bsd3, library, text)Artyom
cheapskate-lucid90.0Use cheapskate with Lucid (bsd3, library, web)Artyom
cheapskate-terminal20.0Initial project template from stack (bsd3, library, program, web)yamadapc
check-email150.0Confirm whether an email is valid and probably existant. (bsd3, library, network)ChrisDone, qoelet
check-pvp42.0Check whether module and package imports conform to the PVP (bsd3, distribution, program)HenningThielemann
checked30.0Bounds-checking integer types. (bsd3, data, library)AntoineLatter
checkers1762.0Check properties on standard classes and data structures. (bsd3, library, testing)ConalElliott
checkmate1600.0Generate checklists relevant to a given patch (development, gpl, library, program)hongminhee
chell250.0A simple and intuitive library for automated testing. (library, mit, testing)JohnMillikin
chell-hunit60.0HUnit support for the Chell testing library (library, mit, testing)JohnMillikin
chell-quickcheck150.0QuickCheck support for the Chell testing library (library, mit, testing)JohnMillikin
chesshs80.0Simple library for validating chess moves and parsing PGN files (bsd3, game, library)ArnoVanLumig
chevalier-common10.0Query interface for Chevalier (bsd3, library, other)fractalcat
chitauri30.0Helper for the Major System (bsd3, program, web)marcusbuffett
choice270.0A solution to boolean blindness. (data, library, public-domain)MathieuBoespflug
choose100.0Choose random elements from a stream. (apache, library, random)chris_martin
choose-exe50.0Command-line program to choose random element from a stream. (apache, application, library, program)chris_martin
chorale262.25A module containing basic functions that the prelude does not offer (library, mit, prelude)FranzBenjaminMocnik
chorale-geo52.0A module containing basic geo functions (library, mit, prelude)FranzBenjaminMocnik
chp302.0An implementation of concurrency ideas from Communicating Sequential Processes (bsd3, concurrency, library)NeilBrown
chp-mtl20.0MTL class instances for the CHP library (bsd3, concurrency, library)NeilBrown
chp-plus120.0A set of high-level concurrency utilities built on Communicating Haskell Processes (bsd3, concurrency, library)NeilBrown
chp-spec10.0A mirror implementation of chp that generates a specification of the program (bsd3, concurrency, library)NeilBrown
chp-transformers20.0Transformers instances for the CHP library (bsd3, concurrency, library)NeilBrown
chronograph40.0measure timings of data evaluation (bsd3, library, testing)JohnLato
chronologique120.0Time to manipulate time (bsd3, library, text)AndrewCowie
chronos120.0A performant time library (bsd3, library, web)andrewthad
chu2140.0FFI for Chu2 Agda Web Server Interface (bsd3, library, web)JinjingWang
chuchu180.0Behaviour Driven Development like Cucumber for Haskell (library, test)FelipeLessa, MarcoSilva
chunked-data2640.0Typeclasses for dealing with various chunked data representations (data, library, mit)MichaelSnoyman
chunks50.0Simple template library with static safety (lgpl, library, text)MatthewSackman
chunky (deprecated)10.0Human-readable storage of text/binary objects. (codec, deprecated, lgpl, library, program)PhilippHausmann
church-list (deprecated)70.0Removed; please see fmlist. (deprecated, library, mit, system)JohnWiegley
church-pair130.0Church encoded pair (bsd3, data, library)mat8913
cielo70.0Cielo API v3 Bindings for Haskell (agpl, library, web)yamadapc
cil60.0An interface to CIL. (bsd3, language, library)TomHawkins
cinvoke50.0A binding to cinvoke. (bsd3, foreign, library)RemiTurk
cio (deprecated)20.0A monad for concurrent IO on a thread pool (concurrency, deprecated, library, mit)NikitaVolkov
cipher-aes (deprecated in favor of cryptonite)5020.0Fast AES cipher implementation with advanced mode of operations (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cipher-aes128910.0AES and common modes using AES-NI when available. (benchmark, bsd3, cryptography, library)ThomasDuBuisson
cipher-blowfish (deprecated in favor of cryptonite)400.0Blowfish cipher (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cipher-camellia390.0Camellia block cipher primitives (benchmark, bsd3, cryptography, library)VincentHanquez
cipher-des770.0DES and 3DES primitives (benchmark, bsd3, cryptography, library)VincentHanquez
cipher-rc4 (deprecated in favor of cryptonite)1110.0Fast RC4 cipher implementation (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cipher-rc5100.0Pure RC5 implementation (bsd3, cryptography, library)FinnEspenGundersen
ciphersaber2110.0Implementation of CipherSaber2 RC4 cryptography. (data, library, mit, program)BartonMassey
circ90.0A Compiler IR Compiler. (bsd3, compiler, language, library)TomHawkins
circle-packing752.0Simple heuristic for packing discs of varying radii in a circle (bsd3, library, optimisation)JoachimBreitner
circlehs42.0The CircleCI REST API for Haskell (api, library, mit, web)dshevchenko
cirru-parser50.0Cirru Parser in Haskell (library, mit, text)jiyinyiyong
cisco-spark-api340.0A Haskell bindings for Cisco Spark API (library, mit, program, web)nshimaza
citation-resolve220.0convert document IDs such as DOI, ISBN, arXiv ID to bibliographic reference. (bsd3, library, text)TakayukiMuranushi
citeproc-hs390.0A Citation Style Language implementation in Haskell (bsd3, library, text)AndreaRossato
citeproc-hs-pandoc-filter20.0A Pandoc filter for processing bibliographic references with citeproc-hs (gpl, program, text)AndreaRossato
cityhash140.0Bindings to CityHash (codec, library, mit)AustinSeipp
cj-token120.0A new Haskeleton package. (library, other, program)marnold
cjk80.0Data about Chinese, Japanese and Korean characters and languages (bsd3, library, text)MaxBolingbroke
clac50.0Simple CLI RPN calculator (gpl, math, program)alexander
clafer230.0Compiles Clafer models to other formats: Alloy, JavaScript, JSON, HTML, Dot. (library, mit, model, program)mantkiew
claferIG260.0claferIG is an interactive tool that generates instances of Clafer models. (library, mit, model, program)mantkiew
claferwiki200.0A wiki-based IDE for literate modeling with Clafer (library, mit, wiki)mantkiew
clang-compilation-database150.0JSON Compilation Database Format encoding and decoding (language, library, mit)AlekseyKliger
clang-pure120.0Pure C++ code analysis with libclang (apache, language, library)PatrickChilton
clanki190.0Command-line spaced-repetition software (education, mit, program)marcusbuffett
clarifai40.0API Client for the Clarifai API. (library, mit, network)jcanero
clash (deprecated in favor of clash-ghc)200.0CAES Language for Synchronous Hardware (CLaSH) (bsd3, deprecated, hardware, language, library)ChristiaanBaaij
clash-ghc1220.0CAES Language for Synchronous Hardware (bsd2, hardware, library, program)ChristiaanBaaij
clash-lib1070.0CAES Language for Synchronous Hardware - As a Library (bsd2, hardware, library)ChristiaanBaaij
clash-multisignal120.0 (bsd3, hardware, library)ralu
clash-prelude1082.0CAES Language for Synchronous Hardware - Prelude library (bsd2, hardware, library)ChristiaanBaaij
clash-prelude-quickcheck40.0QuickCheck instances for various types in the CλaSH Prelude (hardware, library, testing)JohnEricson
clash-systemverilog760.0CAES Language for Synchronous Hardware - SystemVerilog backend (bsd2, hardware, library)ChristiaanBaaij
clash-verilog690.0CAES Language for Synchronous Hardware - Verilog backend (bsd2, hardware, library)ChristiaanBaaij
clash-vhdl830.0CAES Language for Synchronous Hardware - VHDL backend (bsd2, hardware, library)ChristiaanBaaij
classify210.0Library for classification of media files. (data, library, public-domain)DavidHimmelstrup
classy-influxdb-simple150.0Super simple InfluxDB package in Classy-MTL style (bsd3, database, library)schalmers
classy-parallel10.0Fork of the monad-parallel package using monad-control (control, gpl, library)SamAnklesaria
classy-prelude1890.0A typeclass-based Prelude. (control, library, mit, prelude)GregWeber, MichaelSnoyman
classy-prelude-conduit1360.0classy-prelude together with conduit functions (control, library, mit, prelude)GregWeber, MichaelSnoyman
classy-prelude-yesod1010.0Provide a classy prelude including common Yesod functionality. (control, library, mit)GregWeber, MichaelSnoyman
classyplate150.0Fuseable type-class based generics (bsd3, data, library)lazac
clay590.0CSS preprocessor as embedded Haskell. (bsd3, graphics, library, web)SebastiaanVisser, seanparsons
clckwrks520.0A secure, reliable content management system (CMS) and blogging platform (bsd3, clckwrks, library)JeremyShaw
clckwrks-cli230.0a command-line interface for adminstrating some aspects of clckwrks (bsd3, clckwrks, program)JeremyShaw (bsd3, clckwrks, program)JeremyShaw
clckwrks-plugin-bugs220.0bug tracking plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-ircbot250.0ircbot plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-mailinglist40.0mailing list plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-media360.0media plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-page500.0support for CMS/Blogging in clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-theme-bootstrap230.0simple bootstrap based template for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-theme-clckwrks120.0simple bootstrap based template for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-theme-geo-bootstrap40.0geo bootstrap based template for clckwrks (bsd3, clckwrks, library)JeremyShaw
cld250.0Haskell bindings to Google's Compact Language Detector 2 (apache, library, text)dfranke
clean-home120.0Keep your home dir clean by finding old conf files (bsd3, program, utils)IvanPerez, keera_studios_ci
clean-unions110.0Open unions without need for Typeable (bsd3, data, library)FumiakiKinoshita
cless40.0Colorized LESS (mit, program, text)HideyukiTanaka
clevercss130.0A CSS preprocessor (bsd3, library, program, text)GeorgBrandl
cli190.0Command Line Interface (bsd3, cli, library)VincentHanquez, nicolasdp
cli-builder70.0Simple project template from stack (library, mit, tool)mizunashi_mana
click-clack40.0Toy game (tetris on billiard board). Hipmunk in action. (little-game, program)AntonKholomiov
clientsession4740.0Securely store session data in a client-side cookie. (library, mit, program, web)FelipeLessa, MichaelSnoyman
clif40.0A Clifford algebra number type for Haskell (algebra, benchmark, library, math, mit)maaleske
clifford140.0A Clifford algebra library (benchmark, bsd3, library, math, numerical, program)spacekitteh
clingo120.0Haskell bindings to the Clingo ASP solver (asp, ffi, library, logic-programming, mit, symbolic-computation)tsahyt
clippard20.0A simple Haskell library for copying text to the clipboard in a cross-platform way. (library, mit, system)AnthonyGrimes
clipper50.0Haskell API to clipper (2d polygon union/intersection/xor/clipping API) (algebra, bsd3, library)ChetanTaralekar
clippings60.0A parser/generator for Kindle-format clipping files (`My Clippings.txt`), (library, mit, program, text)vi
clist20.0Counted list (data, library)MatthewFarkasDyck
clit400.0Post tweets from stdin (bsd3, library, program, web)vmchale
cloben50.0Clone and benchmark Haskell cabal projects (benchmarking, bsd3, program)sgraf812
clock78852.5High-resolution clock functions: monotonic, realtime, cputime. (bsd3, library, system)CetinSert
clock-extras100.0A couple functions that probably should be in the 'clock' package (bsd3, library, web)JonathanFischoff
clocked40.0timer functionality to clock IO commands (concurrency, lgpl, library)SoenkeHahn
clogparse70.0Parse IRC logs such as the #haskell logs on (bsd3, irc, language, library, text)KeeganMcAllister
clone-all40.0Clone all github repositories from a given user (development, mit, program)NoonSilk
closure10.0Depth- and breadth-first set closures (library, math, mit)JosephAbrahamson
cloud-haskell70.0The Cloud Haskell Application Platform (bsd3, control, library)FacundoDominguez, TimWatson
cloud-seeder50.0A tool for interacting with AWS CloudFormation (cloud, library)lexi_lambda, marnold
cloudfront-signer60.0CloudFront URL signer (bsd3, library, network)ChrisDornan
cloudi150.0Haskell CloudI API (foreign, library, mit)okeuday
cloudyfs30.0A cloud in the file system. (program, system)BrendanHickey
clr-bindings80.0Glue between clr-host and clr-typed (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-host410.0Hosting the Common Language Runtime (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-inline350.0Quasiquoters for inline C# and F# (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-marshal140.0Marshaling for the clr (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-typed60.0A strongly typed Haskell interface to the CLR type system (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-win-linker100.0A GHC linker wrapper tool to workaround a GHC >8.2 bug (.net, bsd3, clr, ffi, language, program)PepeIborra, TimMatthews
cltw60.0Command line Twitter utility (bsd3, console, program, utils)DinoMorelli
clua70.0C to Lua data wrapper generator (bsd3, language, program)TomSchouten
clumpiness80.0Calculate the clumpiness of leaf properties in a tree (gpl, library, math)GregorySchwartz
cluss100.0simple alternative to type classes (bsd3, constraints, library, type-system)Kinokkory
clustering122.0High performance clustering algorithms (benchmark, library, math, mit)kaizhang
clustertools70.0Tools for manipulating sequence clusters (bioinformatics, gpl, program)GwernBranwen, KetilMalde
clutterhs50.0Bindings to the Clutter animation library (gui, lgpl, library)MatthewArsenault
cmaes130.0CMA-ES wrapper in Haskell (algorithms, library, numerical, optimization)TakayukiMuranushi
cmark13672.0Fast, accurate CommonMark (Markdown) parser and renderer (benchmark, bsd3, library, text)JohnMacFarlane
cmark-gfm1360.0Fast, accurate GitHub Flavored Markdown parser and renderer (benchmark, bsd3, library, text)kivikakk
cmark-highlight110.0Code highlighting for cmark (bsd3, library, text)Artyom
cmark-lucid110.0Use cmark with Lucid (bsd3, library, web)Artyom
cmark-patterns130.0Pattern synonyms for cmark (bsd3, library, parsing, text)Artyom
cmark-sections190.0Represent cmark-parsed Markdown as a tree of sections (bsd3, library, text)Artyom
cmath80.0A binding to the standard C math library (bsd3, library, math)DonaldStewart
cmathml310.0Data model, parser, serialiser and transformations for Content MathML 3 (bsd3, library, program, xml)AndrewMiller
cmd-item20.0Library to compose and reuse command line fragments (library, mit, system)geraud
cmdargs63802.0Command line argument processing (bsd3, console, library)NeilMitchell
cmdargs-browser70.0Helper to enter cmdargs command lines using a web browser (bsd3, console, program)NeilMitchell
cmdlib260.0a library for command line parsing & online help (bsd3, library, system)PetrRockai
cmdtheline100.0Declarative command-line option parsing and documentation library. (console, library, mit)EliFrey
cml80.0Events and Channels as in Concurrent ML (bsd3, concurrency, library)BenFranksen
cmonad120.0A library for C-like programming (bsd3, language, library)LennartAugustsson
cmph80.0low level interface to CMPH (bsd3, data, data-structures, library)MarkWotton
cmu210.0Unification in a Commutative Monoid (algebra, gpl, library, program)JohnRamsdell
cmv621.5Detailed visualization of CMs, HMMs and their comparisions (bioinformatics, gpl, library, program)FlorianEggenhofer
cnc-spec-compiler30.0Compiler/Translator for CnC Specification Files. (bsd3, compilers-interpreters, parallelism, program)RyanNewton
cndict530.0Chinese/Mandarin <-> English dictionary, Chinese lexer. (library, natural-language-processing, public-domain)DavidHimmelstrup
code-builder80.0Simple system for generating code. (bsd3, data, library)AdamBergmark, ErikHesselink, mbrock
code-page14962.0Windows code page library for Haskell (bsd3, library, system)ryanglscott
codec202.0Simple bidirectional serialization (bsd3, data, library)PatrickChilton
codec-libevent (deprecated)60.0Cross-platform structure serialisation (bsd3, data, deprecated, library, parsing, program)AdamLangley
codec-mbox110.0A library to read and write mailboxes in mbox format (bsd3, codec, library)NicolasPouillard
codec-rpm680.0A library for manipulating RPM files (distribution, lgpl, library)clumens support for Haskell. (bsd3, control, library, program)killy971
codemonitor20.0Tool that automatically runs arbitrary commands when files change on disk. (bsd3, program, tool)RickardLindberg
codepad12.0Submit and retrieve paste output from (bsd3, library, web)ChrisDone, TheKing
codeworld-api530.0Graphics library for CodeWorld (apache, library, unclassified)ChrisSmith, JoachimBreitner
codex720.0A ctags file generator for cabal project dependencies. (apache, development, library, program)bitemyapp, aloiscochard
codo-notation70.0A notation for comonads, analogous to the do-notation for monads. (bsd3, language, library)DominicOrchard
cofunctor (deprecated in favor of contravariant)80.0DEPRECATED: use the "contravariant" package (bsd3, data, deprecated, library)BrandonSimmons
cognimeta-utils30.0Utilities for Cognimeta products (such as perdure). API may change often. (library, program, unclassified)PatrickPremont
coin140.0Simple account manager (application, gpl, program)piotrborek
coinbase-exchange690.0Connector library for the coinbase exchange. (library, mit, program, web)andrewrademacher
coincident-root-loci70.0Equivariant CSM classes of coincident root loci (bsd3, library, math)BalazsKomuves
colada120.0Colada implements incremental word class class induction using online LDA (bsd3, library, natural-language-processing, program)GrzegorzChrupala
colchis50.0Rudimentary JSON-RPC 2.0 client over raw TCP. (bsd3, library, network)DanielDiazCarrete
cold-widow92.0File transfer via QR Codes. (bsd3, library, program, utility)mihaigiurgeanu
collada-output70.0Generate animated 3d objects in COLLADA (bsd3, graphics, library, program)AndyGill, TillmannVogt
collada-types30.0Data exchange between graphic applications (bsd3, graphics, library)AndyGill, TillmannVogt
collapse-util20.0utility for collapsing adjacent writes (bsd3, concurrency, program)MarkWotton
collection-json280.0Collection+JSON—Hypermedia Type Tools (data, library, mit)alunduil
collections50.0Useful standard collections types and related functions. (bsd3, data-structures, library)JeanPhilippeBernardy, JohannesWaldmann
collections-api40.0API for collection data structures. (bsd3, data-structures, library)JeanPhilippeBernardy
collections-base-instances30.0Useful standard collections types and related functions. (bsd3, data-structures, library)JeanPhilippeBernardy
colock50.0thread-friendly file locks that don't block the entire program (lgpl, library, system)LukasMai
colonnade322.0Generic types and functions for columnar encoding and decoding (bsd3, library, web)andrewthad
color-counter90.0Count colors in images (graphics, library, mit, program)BrianBush
colorful-monoids160.0Styled console text output using ANSI escape sequences. (library, mit, monad, text, user-interfaces)minad
colorize-haskell150.0Highligt Haskell source (bsd3, development, library, program)IavorDiatchki
colorless7020.0Colorless | The Programmatic IDL (bsd3, library, web)jxv
colorless-http-client1380.0Http Client addon for Colorless (bsd3, library, web)jxv
colorless-scotty850.0Scotty server add-on for Colorless (bsd3, library, web)jxv
colors120.0A type for colors (bsd3, data, library)FumiakiKinoshita
colour110490.0A model for human colour/color perception (data, graphics, library, mit)RussellOConnor
colour-accelerate380.0Working with colours in Accelerate (bsd3, data, graphics, library)TrevorMcDonell
colour-space90.0Instances of the manifold-classes for colour types (data, gpl, graphics, library, maths)leftaroundabout
coltrane10.0A jazzy, minimal web framework for Haskell, inspired by Sinatra. (bsd3, library, web)wellecks
columbia160.0Enhanced serialization for media that support seeking. (bsd3, library, serialization)JamesCandy
com140.0Haskell COM support library (bsd3, ffi)KidoTakahiro, SigbjornFinne
comark380.0Commonmark processing in pure haskell. (bsd3, library, program, text)zudov
comark-html360.0Commonmark (markdown) to HTML renderer. (bsd3, library, text)zudov
comark-parser370.0Parser for Commonmark (markdown) (bsd3, library, text)zudov
comark-syntax440.0Definitions of AST that represents a Commonmark (markdown) document. (bsd3, library, text)zudov
combinat400.0Generate and manipulate various combinatorial objects. (bsd3, library, math)BalazsKomuves
combinat-diagrams80.0Graphical representations for various combinatorial objects (bsd3, library, math)BalazsKomuves
combinator-interactive50.0SKI Combinator interpreter (bsd3, language, library, program)FumiakiKinoshita
combinatorial-problems122.0A number of data structures to represent and allow the manipulation of standard combinatorial problems, used as test problems in computer science. (gpl, library, optimisation)RichardSenington
combinatorics (deprecated in favor of exact-combinatorics)70.0Efficient computation of common combinatoric functions. (bsd3, deprecated, library, math, statistics)WrenThornton
combobuffer30.0Various buffer implementations (bsd3, data, library)JohnLato
comfort-graph160.0Graph structure with type parameters for nodes and edges (bsd3, data, library)HenningThielemann
comic100.0A format for describing comics. (bsd3, data, library)davean
comma150.0CSV Parser & Producer (library, text)lovasko
command (deprecated in favor of shake)60.0Conveniently run shell commands (bsd3, deprecated, library, system)NiklasHambuechen
command-qq110.0Quasiquoters for external commands (bsd3, library, system)MatveyAksenov
commander10.0pattern matching against string based commands (bsd3, library, program, text)jsdw
commodities140.0Library for working with commoditized amounts and price histories (bsd3, finance, library)JohnWiegley
commsec190.0Provide communications security using symmetric ephemeral keys (bsd3, cryptography, library)ThomasDuBuisson
commsec-keyexchange140.0Key agreement for commsec. (bsd3, library, network)ThomasDuBuisson
commutative110.0Commutative binary operations. (data, library, math, mit)athanclark
comonad74602.5Comonads (bsd3, comonads, control, library)EdwardKmett, EricMertens, ryanglscott
comonad-extras320.0Exotic comonad transformers (bsd3, comonads, control, library)EdwardKmett
comonad-random (deprecated)40.0Comonadic interface for random values (control, deprecated, library)JakeMcArthur
comonad-transformers (deprecated in favor of comonad)790.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)EdwardKmett
comonads-fd (deprecated in favor of comonad)440.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)EdwardKmett
compact80.0Non-GC'd, contiguous storage for immutable data structures (bsd3, data, library)EdwardYang
compact-map60.0Compact Data.Map implementation using Data.Binary (bsd3, data, library)DavidHimmelstrup
compact-mutable60.0Mutable arrays living on the compact heap (bsd3, library, web)andrewthad
compact-socket10.0Socket functions for compact normal form. (bsd3, library, network)EdwardYang
compact-string (deprecated in favor of text)10.0Fast, packed and strict strings with Unicode support, based on bytestrings. (bsd3, data, deprecated, library)TwanVanLaarhoven
compact-string-fix70.0Same as compact-string except with a small fix so it builds on ghc-6.12 (bsd3, data, library)TonyHannan
compactable122.0A generalization for containers that can be stripped of Nothings. (bsd3, control, library)fresheyeball
compactmap210.0A read-only memory-efficient key-value store. (bsd3, data, library)SimonMarechal
compare-type60.0compare types of any kinds in haskell (bsd3, dependent-types, library)Kinokkory
compdata410.0Compositional Data Types (benchmark, bsd3, generics, library)PatrickBahr
compdata-automata60.0Tree automata on Compositional Data Types (benchmark, bsd3, generics, library)PatrickBahr
compdata-dags30.0Compositional Data Types on DAGs (bsd3, generics, library)PatrickBahr
compdata-param80.0Parametric Compositional Data Types (bsd3, generics, library)PatrickBahr
compensated282.0Compensated floating-point arithmetic (bsd3, library, numeric)EdwardKmett, EricMertens, ryanglscott
competition20.0Helpers and runners for code competitions (code-competitions, library, mit)yanatan16
compilation70.0Haskell functionality for quickly assembling simple compilers. (compilers-interpreters, gpl, language, library)AndreiLapets
compiler-warnings130.0Parser for common compiler warning formats (bsd2, development, library)DmitryIvanov
complex-generic160.0complex numbers with non-mandatory RealFloat (bsd3, library, math)ClaudeHeilandAllen
complex-integrate70.0A simple integration function to integrate a complex-valued complex functions (library, math, public-domain)MarkSafronov
complexity50.0Empirical algorithmic complexity (bsd3, library, testing)RoelVanDijk
composable-associations140.0Types and helpers for composing types into a single larger key-value type. (bsd3, library, web)smprts
composable-associations-aeson120.0Aeson ToJSON/FromJSON implementation for the types of composable-associations (bsd3, library, web)smprts
compose-ltr130.0More intuitive, left-to-right function composition. (data, library, mit)Wizek
compose-trans60.0Composable monad transformers (bsd3, library, monads)MiguelMitrofanov
composite-aeson720.0JSON for Vinyl/Frames records (bsd3, library, records)dridus, asariley
composite-aeson-refined590.0composite-aeson support for Refined from the refined package (bsd3, library, records)dridus, asariley
composite-base740.0Shared utilities for composite-* packages. (bsd3, library, records)dridus, asariley
composite-ekg710.0EKG Metrics for Vinyl/Frames records (bsd3, library, records)dridus, asariley
composite-opaleye700.0Opaleye SQL for Frames records (bsd3, library, records)dridus, asariley
composition380.0Combinators for unorthodox function composition (bsd3, data, library)DanBurton
composition-extra200.0Combinators for unorthodox structure composition (bsd3, data, library)athanclark
composition-prelude950.0Higher-order function combinators (bsd3, control, data, library)vmchale
composition-tree150.0Composition trees for arbitrary monoids. (bsd3, data, library)LiamOConnorDavis
compound-types1010.0Sum and Product types and such (data, library, mit, type-system, types)NikitaVolkov
compressed192.0Compressed containers and reducers (bsd3, compression, data, library, mapreduce)EdwardKmett
compression70.0Common compression algorithms. (codec, library)IanLynagh
compstrat40.0Strategy combinators for compositional data types (bsd3, generics, language, library)JamesKoppel
comptrans90.0Automatically converting ASTs into compositional data types (bsd3, data, generics, library)JamesKoppel
computational-algebra342.0Well-kinded computational algebra library, currently supporting Groebner basis. (benchmark, bsd3, library, math)HiromiIshii
computational-geometry980.0Collection of algorithms in Computational Geometry. (bsd3, graphics, library, math)MaksymilianOwsianny
computations70.0Advanced notions of computation (bsd3, control, library)WolfgangJeltsch
concatenative2040.0A library for postfix control flow. (bsd3, control, library)SamAnklesaria
conceit210.0Concurrent actions that may fail with a value. (bsd3, concurrency, library)DanielDiazCarrete
concise310.0Utilities for Control.Lens.Cons (bsd3, data, lenses, library)frasertweedale
concorde70.0Simple interface to the Concorde solver for the Traveling Salesperson Problem (algorithms, bsd3, library)KeeganMcAllister
concraft210.0Morphological disambiguation based on constrained CRFs (bsd3, library, natural-language-processing)JakubWaszczuk
concraft-hr30.0Part-of-speech tagger for Croatian (bsd3, library, natural-language-processing, program)vjeranc
concraft-pl150.0Morphological tagger for Polish (bsd3, library, natural-language-processing, program)JakubWaszczuk
concrete-haskell300.0Library for the Concrete data format. (data, gpl, library, program)TomLippincott
concrete-haskell-autogen180.0Automatically generated Thrift definitions for the Concrete data format. (data, gpl, library)TomLippincott
concrete-relaxng-parser30.0A parser driven by a standard RELAX NG schema with concrete syntax extensions. (gpl, parsing, program, xml)MarioBlazevic
concrete-typerep50.0Binary and Hashable instances for TypeRep (bsd3, data, library)ReinerPope
concurrency1080.0Typeclasses, functions, and data types for concurrency and STM. (concurrency, library, mit)barrucadu
concurrent-barrier80.0Simple thread barriers (bsd3, concurrency, library)JeremyFitzhardinge
concurrent-dns-cache170.0Concurrent DNS cache (bsd3, library, network, program)KazuYamamoto
concurrent-extra10670.0Extra concurrency primitives (bsd3, concurrency, library)BasVanDijk, RoelVanDijk
concurrent-machines250.0Concurrent networked stream transducers (benchmark, bsd3, concurrency, control, library)AnthonyCowley
concurrent-output3912.5Ungarble output from several threads or commands (bsd2, library, user-interfaces)JoeyHess
concurrent-rpc100.0An abstraction for inter-thread RPC based on MVars (concurrency, library, mit)LarsPetersen
concurrent-sa80.0Concurrent simulated annealing system. (algorithms, bsd3, concurrency, library)LouisWasserman
concurrent-split100.0MVars and Channels with distinguished input and output side (bsd3, concurrent, library)HenningThielemann
concurrent-st340.0Concurrent Haskell in ST (bsd3, library, software)andrewthad
concurrent-state210.0MTL-like library using TVars (control, library, mit)JoelTaylor
concurrent-supply732.0A fast concurrent unique identifier supply with a pure API (bsd3, concurrency, library, parallelism)EdwardKmett
concurrent-utilities100.0More utilities and broad-used datastructures for concurrency. (bsd3, concurrency, library)sebaslafleur
concurrentoutput (deprecated in favor of concurrent-output)90.0Ungarble output from several threads (bsd3, deprecated, library, user-interfaces)JoachimBreitner
cond550.0Basic conditional and boolean operators with monadic variants. (bsd3, control, library, logic, monad)AdamCurtis
condor (deprecated)20.0Information retrieval library (bsd3, deprecated, library, program, search, text)klangner
condorcet60.0Library for Condorcet voting (bsd3, data, library)GwernBranwen
conductive-base110.0a library for live coding and real-time musical applications (gpl, library, music, sound)RenickBell
conductive-clock90.0a library for displaying musical time in a terminal-based clock (gpl, library, music, sound)RenickBell
conductive-hsc380.0a library with examples of using Conductive with hsc3 (gpl, library, music, sound)RenickBell
conductive-song40.0a library of functions which are useful for composing music (gpl, library, music, sound)RenickBell
conduit88112.5Streaming data processing library. (conduit, data, library, mit)MichaelSnoyman
conduit-algorithms780.0Conduit-based algorithms (conduit, library, mit)luispedro
conduit-audio260.0Combinators to efficiently slice and dice audio streams (bsd3, library, sound)mtolly
conduit-audio-lame150.0conduit-audio interface to the LAME MP3 library (bsd3, library, sound)mtolly
conduit-audio-samplerate150.0conduit-audio interface to the libsamplerate resampling library (bsd3, library, sound)mtolly
conduit-audio-sndfile170.0conduit-audio interface to the libsndfile audio file library (bsd3, library, sound)mtolly
conduit-combinators3210.0Commonly used conduit functions, for both chunked and unchunked data (conduit, data, library, mit)MichaelSloan, MichaelSnoyman
conduit-connection130.0Conduit source and sink for Network.Connection. (bsd3, conduit, library, network)slomo
conduit-extra43370.0Batteries included conduit: adapters for common libraries. (conduit, data, library, mit)MichaelSnoyman
conduit-find90.0A file-finding conduit that allows user control over traversals. (library, mit, program, system)ErikDeCastroLopo
conduit-iconv200.0Conduit for character encoding conversion. (benchmark, bsd3, conduit, library, text)slomo
conduit-merge130.0Merge multiple sorted conduits (bsd3, conduit, library)cblp
conduit-network-stream50.0A base layer for network protocols using Conduits (bsd3, library, network)NilsSchweinsberg
conduit-parse190.0Parsing framework based on conduit. (conduit, library, public-domain, text)koral
conduit-resumablesink40.0Allows conduit to resume sinks to feed multiple sources into it. (bsd3, conduit, data, library)AndrewMiller
conduit-throttle170.0Throttle Conduit Producers (bsd3, data, library)mtesseract
conduit-tokenize-attoparsec100.0Conduits for tokenizing streams. (bsd3, conduit, data, library, program)newhoggy, haskellworks
conf22.0Parser for Haskell-based configuration files. (bsd3, configuration, library, parsing)carymrobbins
conf-json100.0read, parse json config (configuration, json, library, public-domain)procione
conffmt30.0A .conf file formatter (data, mit, program)yamadapc
config-ini1040.0A library for simple INI-based configuration files. (bsd3, configuration, library)gdritter
config-manager140.0Configuration management (configuration, data, gpl, library)guyonvarch
config-schema292.0Schema definitions for the config-value package (language, library)EricMertens
config-select20.0A small program for swapping out dot files. (gpl, program, system)TimothyHobbs
config-value472.25Simple, layout-based value language similar to YAML or JSON (language, library, mit)EricMertens
config-value-getopt90.0Interface between config-value and System.GetOpt (configuration, library, mit)EricMertens
configifier100.0parser for config files, shell variables, command line args. (agpl, configuration, data, library)MatthiasFischmann
configuration60.0Simple data type for application configuration. (bsd3, data, library)HiromiIshii
configuration-tools532.0Tools for specifying and parsing configurations (configuration, console, library, mit)larsk
configurator2922.0Configuration management (bsd3, configuration, data, library)BryanOSullivan
configurator-export110.0Pretty printer and exporter for configurations from the "configurator" library. (bsd3, configuration, data, library)jle
configurator-ng140.0The next generation of configuration management (bsd3, configuration, data, library)LeonSmith
confsolve290.0A command line tool for resolving conflicts of file synchronizers. (bsd3, program, utils)DanielTrstenjak
congruence-relation20.0Decidable congruence relations for Haskell: up to you whether this is a joke (data, library, mit)JonSterling
conjugateGradient130.0Sparse matrix linear-equation solver (bsd3, library, math)LeventErkok
conjure50.0A BitTorrent client (bsd3, library, network, program)GwernBranwen
conlogger30.0A logger for a concurrent program. (concurrency, library, mit, program)tattsun
connection51150.0Simple and easy network connections API (bsd3, library, network)VincentHanquez
connection-pool150.0Connection pool built on top of resource-pool and streaming-commons. (bsd3, data, library, network)PeterTrsko
consistent80.0Eventually consistent STM transactions. (library, mit, system)JohnWiegley
console-program292.0Interpret the command line and a config file as commands and options (bsd3, console, library, system)AriePeterson
console-prompt110.0console user prompts (lgpl, library, system)jlamothe
console-style (deprecated in favor of colorful-monoids)120.0Styled console text output using ANSI escape sequences. (deprecated, library, mit, monad, text, user-interfaces)minad
const-math-ghc-plugin120.0Compiler plugin for constant math elimination (bsd3, compiler-plugin, library)ConradParker
constrained-categories170.0Constrained clones of the category-theory type classes, using ConstraintKinds. (control, gpl, library)leftaroundabout
constrained-dynamic80.0Dynamic typing with retained constraints (data, library, mit)jh3141
constrained-monads140.0Typeclasses and instances for monads with constraints. (benchmark, control, library, mit)oisdk
constrained-normal70.0Normalised Deep Embeddings for Constrained Type-Class Instances (bsd3, control, library)NeilSculthorpe
constraint-classes160.0Various typeclasses using ConstraintKinds (bsd3, library, unclassified)guaraqe
constraint-manip280.0Some conviencience type functions for manipulating constraints. (control, library, mit)clinton
constraints5952.0Constraint manipulation (bsd2, constraints, library)EdwardKmett, ryanglscott
constructible30.0Exact computation with constructible real numbers (bsd3, library, math)AndersKaseorg
constructive-algebra140.0A library of constructive algebra. (algebra, bsd3, library, math)AndersMortberg
consul-haskell140.0A consul client for Haskell (bsd3, library, network)sseveran
consumers430.0Concurrent PostgreSQL data consumers (bsd3, concurrency, database, library)MikhailGlushenkov, arybczak, jonathanjouty_scrive, trin_cz
container30.0Containers abstraction and utilities. (apache, library, text)danilo2
container-builder80.0Functions for building containers from a known number of elements (bsd3, library, web)andrewthad
container-classes (deprecated)50.0Generic classes for interacting with different container types (bsd3, data-structures, deprecated, library)IvanMiljenovic
containers20252.75Assorted concrete container types (benchmark, bsd3, data-structures, library)EdwardKmett, JohanTibell, MilanStraka, WrenThornton, dfeuer, WrenRomano
containers-benchmark70.0Extensive benchmark suite for containers package. (benchmarking, bsd3, program)MilanStraka
containers-deepseq (deprecated in favor of containers)70.0Provide orphan NFData instances for containers as needed. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
containers-unicode-symbols210.0Unicode alternatives for common functions and operators (bsd3, library, unclassified)RoelVanDijk
context-free-grammar60.0Basic algorithms on context-free grammars (bsd3, language, library)nedervold
context-stack20.0An abstraction of a stack and stack-based monadic context. (data, library, mit)thinkpad20
continue30.0Monads with suspension and arbitrary-spot reentry (bsd3, control, library)ErtugrulSoeylemez, esz
continued-fraction170.0Types and functions for working with continued fractions in Haskell (bsd3, library, math)vmchale
continued-fractions140.0Continued fractions. (library, math, numerical, public-domain)JamesCook
continuum100.0 (library, mit, unclassified)ifesdjeen
continuum-client10.0 (library, mit, unclassified)ifesdjeen
contravariant66720.0Contravariant functors (bsd3, control, data, library)EdwardKmett, EricMertens
contravariant-extras2080.0Extras for the "contravariant" package (control, library, mit)NikitaVolkov
control-bool100.0Useful combinators for boolean expressions (bsd3, control, library)FumiakiKinoshita
control-dotdotdot120.0Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`. (bsd3, control, library)erisco
control-event230.0Event scheduling system. (bsd3, control, library)ThomasDuBuisson
control-invariants20.0Invariants and contract monitoring (control, library, mit)aminb, SimonHudon
control-monad-attempt (deprecated)80.0Monad transformer for attempt. (deprecated) (bsd3, data, deprecated, failure, library)MichaelSnoyman, NicolasPouillard
control-monad-exception440.0Explicitly typed, checked exceptions with stack traces (control, failure, library, mit, monads)PepeIborra
control-monad-exception-monadsfd60.0Monads-fd instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)PepeIborra
control-monad-exception-monadstf80.0Monads-tf instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)PepeIborra
control-monad-exception-mtl110.0MTL instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)PepeIborra
control-monad-failure (deprecated)200.0A class for monads which can fail with an error. (deprecated) (control, deprecated, failure, library, monads, public-domain)MichaelSnoyman, PepeIborra
control-monad-failure-mtl (deprecated)90.0A class for monads which can fail with an error for mtl 1 (deprecated) (control, deprecated, failure, library, monads, public-domain)MichaelSnoyman, PepeIborra
control-monad-free510.0Free monads and monad transformers (control, library, monads, public-domain)LukePalmer, PepeIborra
control-monad-loop530.0Simple monad transformer for imperative-style loops (bsd3, control, library)JoeyAdams
control-monad-omega670.0A breadth-first list monad. (control, library, public-domain)LukePalmer
control-monad-queue130.0Reusable corecursive queues, via continuations. (bsd3, control, library)LeonSmith
control-timeout (deprecated)100.0Timeout handling (bsd3, control, deprecated, library)AdamLangley
contstuff (deprecated)340.0Fast, easy to use CPS-based monad transformers (bsd3, control, deprecated, library, monads)ErtugrulSoeylemez, esz
contstuff-monads-tf (deprecated)50.0ContStuff instances for monads-tf transformers (deprecated) (bsd3, control, deprecated, library, monads)ErtugrulSoeylemez, esz
contstuff-transformers (deprecated)50.0Deprecated interface between contstuff 0.7.0 and the transformers package (bsd3, control, deprecated, library, monads)ErtugrulSoeylemez, esz
converge110.0Limit operations for converging sequences (library, math, numerical, public-domain)JamesCook
conversion150.0Universal converter between values of different types (control, conversion, data, library, mit)NikitaVolkov
conversion-bytestring90.0"Conversion" instances for the "bytestring" library (control, conversion, data, library, mit)NikitaVolkov
conversion-case-insensitive30.0"Conversion" instances for the "case-insensitive" library (control, conversion, data, library, mit)NikitaVolkov
conversion-text90.0"Conversion" instances for the "text" library (control, conversion, data, library, mit)NikitaVolkov
convert80.0Safe and unsafe data conversion utilities with strong type-level operation. checking. (apache, data, library)danilo2
convert-annotation120.0Convert the annotation of a gene to another in a delimited file using a variety of different databases. (bioinformatics, gpl, library, program)GregorySchwartz
convertible3232.0Typeclasses and instances for converting between types (bsd3, data, library)ErikHesselink, JohnGoerzen, NicolasWu
convertible-ascii40.0convertible instances for ascii (data, failure, library, public-domain)MasatakeDaimon
convertible-text (deprecated)310.0Typeclasses and instances for converting between types (deprecated) (bsd3, data, deprecated, failure)MichaelSnoyman
cookbook370.0Tiered general-purpose libraries with domain-specific applications. (bsd3, development, library)NatePisarski
cookie53380.0HTTP cookie parsing and rendering (library, mit, web, yesod)MichaelSnoyman
coordinate320.0A representation of latitude and longitude (bsd3, development, library)TonyMorris
copilot360.0A stream DSL for writing embedded C programs. (bsd3, embedded, language, library, program)LeePike, agoodloe
copilot-c99220.0A compiler for Copilot targeting C99. (bsd3, embedded, language, library, program)LeePike, agoodloe
copilot-cbmc160.0Copilot interface to a C model-checker. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-core210.0An intermediate representation for Copilot. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-language230.0A Haskell-embedded DSL for monitoring hard real-time distributed systems. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-libraries140.0Libraries for the Copilot language. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-sbv320.0A compiler for CoPilot targeting SBV. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-theorem90.0k-induction for Copilot. (bsd3, embedded, language, library)LeePike, agoodloe
copr40.0Haskell interface to the Fedora Copr system (bsd3, fedora, library, web)RickyElrod
core220.0External core parser and pretty printer. (bsd3, language, library)DavidHimmelstrup
core-compiler150.0compile your own mini functional language with Core (compiler, language, library, mit, program)aneksteind
core-haskell110.0A subset of Haskell using in UCC for teaching purpose (bsd3, compilers-interpreters, language, program)happlebao
corebot-bliki50.0A bliki written using yesod. Uses pandoc to process files stored in git. (bsd3, library, program, yesod)CoreyOConnor
coroutine-enumerator (deprecated)20.0Bridge between the monad-coroutine and enumerator packages. (concurrency, deprecated, enumerator, gpl, library)MarioBlazevic
coroutine-iteratee (deprecated)40.0Bridge between the monad-coroutine and iteratee packages. (concurrency, data, deprecated, gpl, library)MarioBlazevic
coroutine-object250.0Object-oriented programming realization using coroutine (bsd3, control, library)IanWooKim
couch-hs90.0A CouchDB view server for Haskell. (database, library, program, public-domain)PeterSagerson
couch-simple50.0A modern, lightweight, complete client for CouchDB (database, library, mit)mdorman
couchdb-conduit440.0Couch DB client library using http-conduit and aeson (bsd3, conduit, database, library)AlexanderDorofeev
couchdb-enumerator110.0Couch DB client library using http-enumerator and aeson (bsd3, database, library, web)JohnLenz
count50.0Bijective mappings between values and possibly infinite prefixes of [0..] (bsd3, data, library)Maxdamantus
countable120.0Countable, Searchable, Finite, Empty classes (bsd3, data, library)AshleyYakeley
countable-inflections120.0Countable Text Inflections (library, mit, text)tippenein
counter152.0An object frequency counter. (data, library, mit)wei2912
country210.0Country data type and functions (bsd3, library, web)andrewthad
country-codes80.0ISO 3166 country codes and i18n names. (bsd3, data, library)FelipeLessa, JeanPhilippeMoresmau
courier332.0A message-passing library for simplifying network applications (distributed-computing, library, message-oriented, mit, network, program)PhilHargett
court20.0Simple and flexible CI system (bsd3, development, program)thoferon
coverage50.0Exhaustivity Checking Library (control, library, mit)NicolasDelPiano
cpio-conduit150.0Conduit-based CPIO (apache, data, library)DanAloni
cplex-hs82.0high-level CPLEX interface (bsd3, library, math)stefanjhlk
cplusplus-th12.0C++ Foreign Import Generation (bsd3, foreign, library)MaxwellSwadling
cpphs45440.0A liberalised re-implementation of cpp, the C pre-processor. (development, lgpl, library, program)MalcolmWallace
cprng-aes (deprecated in favor of cryptonite)4290.0Crypto Pseudo Random Number Generator using AES in counter mode. (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cprng-aes-effect40.0Run random effect using cprng-aes, a crypto pseudo number generator. (crypto, effect, library, mit)ibotty
cpsa3202.0Symbolic cryptographic protocol analyzer (bsd3, cryptography, program)JohnRamsdell, mliskov
cpu782.0Cpu information and properties helpers. (bsd3, data, library)VincentHanquez
cpuid160.0Binding for the cpuid machine instruction on x86 compatible processors (foreign-binding, gpl)HenningThielemann, MartinGrabmueller
cpuinfo120.0Haskell Library for Checking CPU Information (library, mit, system)TravisWhitaker
cpuperf60.0Modify the cpu frequency on OpenBSD systems (bsd3, program, system)DonaldStewart
cpython190.0Bindings for libpython (foreign, gpl, library)JohnMillikin
cql300.0Cassandra CQL binary protocol. (database<