Packages tagged bsd3

7129 packages have this tag.

[Merge tag] (trustees only)

Related tags: library (6448), program (1426), data (1119), web (865), deprecated (499), text (471), control (440), network (391), system (387), development (359), language (343), math (322), graphics (308), benchmark (289), database (235), data-structures (158), concurrency (128), testing (126), unclassified (119), game (112), parsing (109), codec (89), compilers-interpreters (84), cryptography (82), generics (80), algorithms (75), distribution (71), sound (71), natural-language-processing (65), monads (60), ffi (58), xml (55), frp (52), music (52), utils (48), user-interfaces (46), console (45), conduit (41), foreign (41), pipes (41), distributed-computing (37), prelude (35), yesod (35), compiler (34), numerical (33), parallelism (32), gui (31), json (31), snap (31), ai (30), hardware (30), application (28), acme (27), debug (27), type-system (26), statistics (25), template-haskell (25), lenses (24), numeric (24), algebra (23), embedded (23), finance (23), reactivity (22), code-generation (21), graphs (20), logic (20), theorem-provers (20), time (20), tools (19), dependent-types (18), education (18), physics (18), formal-methods (17), happstack (17), io-streams (17), records (17), bioinformatics (16), configuration (16), enumerator (16), ghc (16), comonads (15), monad (14), simulation (14), data-mining (13), documentation (13), error-handling (13), filesystem (13), logging (13), security (13), test (13), aws (12), combinators (12), foreign-binding (12), machine-learning (12), monadic-regions (12), profiling (12), clckwrks (11), cli (11), pretty-printer (11), servant (11), trace (11), cloud (10), compression (10), concurrent (10), editor (10), failure (10), nix (10), other (10), parser (10), search (10), serialization (10), .net (9), reflection (9), utility (9), api (8), image (8), javascript (8), jvm (8), optimisation (8), optimization (8), science (8), audio (7), authentication (7), aviation (7), benchmarking (7), categories (7), composition (7), constraints (7), fay (7), game-engine (7), java (7), list (7), network-apis (7), clr (6), clustering (6), csv (6), desktop (6), effect (6), email (6), functors (6), geography (6), pugs (6), random (6), robotics (6), smt (6), source-tools (6), streaming (6), teaching (6), bit-vectors (5), cloud-haskell (5), compiler-plugin (5), crypto (5), file (5), geometry (5), haskell (5), html (5), interfaces (5), irc (5), media (5), networking (5), pdf (5), phantom-types (5), servant-web (5), template (5), adsb (4), codecs (4), eventsourcing (4), ffi-tools (4), ide (4), latex (4), lens (4), stratux (4), syntax (4), todo (4), typography (4), userinterface (4), vector (4), argumentation (3), bitcoin (3), charts (3), chemistry (3), classification (3), command-line (3), compatibility (3), debian (3), disassembler (3), formal-languages (3), hash (3), haskell2010 (3), monitoring (3), password (3), project (3), refactoring (3), shake (3), tool (3), transformation (3), ui (3), unknown (3), application-server (2), backup (2), bio (2), bit (2), browser (2), cache (2), commercial (2), datamining (2), demo (2), dsl (2), eden (2), exceptions (2), experimental (2), fedora (2), font (2), foundation (2), framework (2), functions (2), generic (2), graph (2), haskell98 (2), help (2), i2c (2), languages (2), logic-programming (2), machine-vision (2), machines (2), mathematics (2), metrics (2), middleware (2), nlp (2), noise (2), options (2), performance (2), persistent (2), polymorphism (2), program-transformation (2), protocol (2), qux (2), raspberrypi (2), reverse-engineering (2), scheduling (2), scripting (2), shell (2), software (2), software-defined-radio (2), string (2), svg (2), symbolic-computation (2), templating (2), tree (2), unicode (2), unsafe (2), util (2), utilities (2), value (2), visual-programming (2), wai (2), zippers (2), adjunctions (1), algorithm (1), algorithm-visualization (1), apple (1), ast (1), attribute-grammars (1), bindings (1), blockchain (1), bsd (1), bsparse (1), build-tool (1), caching (1), category (1), cgi (1), chat (1), cli-tool (1), commerce (1), common-parts (1), compilation (1), compilers (1), computer-algebra (1), ...

Name
DLs
Rating
Description
Tags
Maintainer
3d-graphics-examples100.0Examples of 3D graphics programming with OpenGL (bsd3, fractals, graphics, program)WolfgangJeltsch
4Blocks70.0A tetris-like game (works with GHC 6.8.3 and Gtk2hs 0.9.13) (bsd3, game, program)AndrewCalleja
ABList80.0An alternating list of two types (bsd3, data, library)DylanJust
AC-Angle60.0Angles in degrees and radians. (bsd3, data, library, math, numerical)AndrewCoppin
AC-Boolean110.0Handle Boolean values generatically. (bsd3, data, library, logic, math)AndrewCoppin
AC-BuildPlatform100.0Detect which OS you're running on. (bsd3, library, system)AndrewCoppin
AC-Colour210.0Efficient RGB colour types. (bsd3, data, graphics, library, math, numerical)AndrewCoppin
AC-EasyRaster-GTK100.0GTK+ pixel plotting. (bsd3, graphics, library)AndrewCoppin
AC-HalfInteger90.0Efficient half-integer type. (bsd3, data, library, math, numerical)AndrewCoppin
AC-MiniTest40.0A simple test framework. (bsd3, library, testing)AndrewCoppin
AC-PPM60.0Trivial package for writing PPM images. (bsd3, codec, graphics, library)AndrewCoppin
AC-Random60.0A pure Haskell PRNG. (bsd3, library, random)AndrewCoppin
AC-Terminal50.0Trivial wrapper over ansi-terminal. (bsd3, data, library, math, numerical)AndrewCoppin
AC-VanillaArray70.0Immutable arrays with plain integer indicies. (bsd3, data, library)AndrewCoppin
AC-Vector330.0Efficient geometric vectors and transformations. (bsd3, data, graphics, library, math, numerical)AndrewCoppin
AC-Vector-Fancy200.0Fancy type-system stuff for AC-Vector (bsd3, data, graphics, library, math, numerical)AndrewCoppin
ACME82.25Essential features (acme, bsd3, library)JamesCandy
ADPfusion430.0Efficient, high-level dynamic programming. (algorithms, bioinformatics, bsd3, data-structures, formal-languages, library)ChristianHoener
ADPfusionSet40.0Dynamic programming for Set data structures. (algorithms, bioinformatics, bsd3, data-structures, formal-languages, library)ChristianHoener
AERN-Basics70.0foundational type classes for approximating exact real numbers (bsd3, data, library, math, program)MichalKonecny
AERN-Net90.0Compositional lazy dataflow networks for exact real number computation (bsd3, distributed-computing, library, math)MichalKonecny
AERN-Real620.0arbitrary precision real interval arithmetic (bsd3, data, library, math)MichalKonecny
AERN-Real-Double90.0arbitrary precision real interval arithmetic (bsd3, data, library, math, program)MichalKonecny
AERN-Real-Interval80.0arbitrary precision real interval arithmetic (bsd3, data, library, math)MichalKonecny
AERN-RnToRm360.0polynomial function enclosures (PFEs) approximating exact real functions (bsd3, data, library, math)MichalKonecny
AERN-RnToRm-Plot220.0GL plotting of polynomial function enclosures (PFEs) (bsd3, data, library, math)MichalKonecny
AES470.0Fast AES encryption/decryption for bytestrings (bsd3, cryptography, library)SveinOveAas
AGI240.0A library for writing AGI scripts for Asterisk (bsd3, library, network)JeremyShaw
ALUT420.0A binding for the OpenAL Utility Toolkit (bsd3, library, sound)StephenBlackheath, SvenPanne
AMI30.0Low-level bindings for Asterisk Manager Interface (AMI). (bsd3, library, network)IlyaPortnov
ANum50.0Num instance for Applicatives provided via the ANum newtype (bsd3, data, library)DanBurton
ASN1 (deprecated)70.0ASN.1 support for Haskell (bsd3, deprecated, language, library)DominicSteinitz
AVar (deprecated)200.0Mutable variables with Exception handling and concurrency support. (bsd3, concurrency, deprecated, library)AlexMason
AWin32Console20.0A binding to a part of the ANSI escape code for the console (bsd3, library, system)HaraldWolfsgruber
AbortT-monadstf30.0Monads-tf instances for the AbortT monad transformer. (bsd3, control, library)GregoryCrosswhite
AbortT-mtl40.0mtl instances for the AbortT monad transformer (bsd3, control, library)GregoryCrosswhite
AbortT-transformers140.0A monad and monadic transformer providing "abort" functionality (bsd3, control, library)GregoryCrosswhite
ActionKid50.0An easy-to-use video game framework for Haskell. (bsd3, game-engine, library, program)AdityaBhargava
Adaptive110.0Library for incremental computing. (algorithms, bsd3, library, program)DustinDeWeese, MagnusCarlsson, PeterJonsson
Adaptive-Blaisorblade40.0Library for incremental computing. (bsd3, control, library, program)PaoloGiarrusso
Advgame90.0Lisperati's adventure game in Lisp translated to Haskell (bsd3, game, program)TimWawrzynczak
Agata (deprecated in favor of testing-feat)140.0Generator-generator for QuickCheck (bsd3, deprecated, library, testing)JonasDuregard
AhoCorasick70.0Aho-Corasick string matching algorithm (bsd3, library, text)SergeyLymar
AlanDeniseEricLauren50.0Find the minimal subset/submap satisfying some property. (algorithms, benchmark, bsd3, library)EchoNolan
AlgorithmW100.0Example implementation of Algorithm W for Hindley-Milner type inference. (bsd3, development, program)MartinGrabmueller
AndroidViewHierarchyImporter50.0Android view hierarchy importer (bsd3, development, program)alpheccar
Animas70.0Updated version of Yampa: a library for programming hybrid systems. (bsd3, frp, library, reactivity)EdwardAmsden
Annotations200.0Constructing, analyzing and destructing annotated trees (bsd3, generics, library)MartijnVanSteenbergen
Ansi2Html100.0Convert ANSI Terminal Sequences to nice HTML markup (bsd3, program, web)JensStimpfle
ApplePush30.0Library for Apple Push Notification Service (bsd3, library, network, program)ChrisMoos
AppleScript170.0Call AppleScript from Haskell, and then call back into Haskell. (bsd3, foreign)ReinerPope, WouterSwierstra
ApproxFun-hs30.0Function approximation (bsd3, library, math)DominicSteinitz
ArrayRef140.0Unboxed references, dynamic arrays and more (bsd3, data, library)GwernBranwen
AttoBencode110.0Fast Bencode encoding and parsing library (bsd3, data, library)FlorianHartwig
AttoJson (deprecated in favor of aeson)290.0Simple lightweight JSON parser, generator & manipulator based on ByteString (bsd3, deprecated, library, text)HiromiIshii
Attrac120.0Visualisation of Strange Attractors in 3-Dimensions (bsd3, graphics, program)RubenZilibowitz
Aurochs30.0Yet another parser generator for C/C++ (bsd3, development, program)XinyuJiang
AvlTree220.0Balanced binary trees using the AVL algorithm. (bsd3, data-structures, library)AdrianHey
BASIC222.0Embedded BASIC (bsd3, language, library)LennartAugustsson
Befunge9330.0An interpreter for the Befunge-93 Programming Language (bsd3, compilers-interpreters, program)BrandonSimmons
BerkeleyDB460.0Berkeley DB binding (bsd3, database, library)JohnMcCall, StephenBlackheath
BerkeleyDBXML370.0Berkeley DB XML binding (bsd3, database, library)StephenBlackheath
BerlekampAlgorithm20.0Factorization of polynomials over finite field (bsd3, library, math)AbdelwahebMiled
BigPixel100.0Image editor for pixel art (bsd3, development, program)ManuelChakravarty
Binpack190.0Common bin-packing heuristics. (algorithms, bsd3, heuristics, library)BjoernBrandenburg, DavidFeng
BiobaseNewick70.0Newick file format parser. (bioinformatics, bsd3, library, program)ChristianHoener
BiobaseTypes200.0Collection of types for bioinformatics (bioinformatics, bsd3, data-structures, library)ChristianHoener
BitStringRandomMonad190.0 (bsd3, crypto, library)Ofenhed
BitSyntax140.0A module to aid in the (de)serialisation of binary data (bsd3, library, serialization)AdamLangley, joecrayne
Bitly (deprecated)250.0A library to access bit.ly URL shortener. (bsd3, deprecated, library, web)SergeyAstanin
BlogLiterately-diagrams550.0Include images in blog posts with inline diagrams code (bsd3, library, program, web)BrentYorgey
BluePrintCSS (deprecated)40.0Html document layout library. (bsd3, deprecated, library, text, web)SergeyMironov
Blueprint40.0Preview of a new build system. (bsd3, distribution, library)GregoryCrosswhite
Boolean1270.0Generalized booleans and numbers (bsd3, data, library)ConalElliott
BoundedChan350.0Implementation of bounded channels. (bsd3, concurrency, library)AdamWick
Bravo60.0Static text template generation library (bsd3, library, text)MatthiasReisner
CC-delcont-alt80.0Three 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-exc40.0A monad transformers for multi-prompt delimited control (bsd3, control, library)KidoTakahiro
CC-delcont-ref40.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)KidoTakahiro
CC-delcont-ref-tf70.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)KidoTakahiro
CCA210.0preprocessor and library for Causal Commutative Arrows (CCA) (bsd3, development, library, program)PaulLiu
CHXHtml190.0A W3C compliant (X)HTML generating library (bsd3, library, web)PaulTalaga
CLASE130.0Cursor Library for A Structured Editor (bsd3, data, library)TristanAllwood
CLI30.0CLI tools (bsd3, data, library)g960059
CMQ30.0cwmwl udp message queue (bsd3, library, system)JoergFritsch
COrdering120.0An algebraic data type similar to Prelude Ordering. (bsd3, data, library)AdrianHey
CPBrainfuck60.0A simple Brainfuck interpretter. (bsd3, compilers-interpreters, program)ThomasDavie
CPL120.0An interpreter of Hagino's Categorical Programming Language (CPL). (bsd3, compilers-interpreters, program)MasahiroSakai
CSPM-CoreLanguage200.0Definition of a FDR-compatible CSP core-language. (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-FiringRules150.0Firing rules semantic of CSPM (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-Frontend360.0A CSP-M parser compatible with FDR-2.91 (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-Interpreter290.0An interpreter for CSPM (bsd3, concurrency, formal-methods, language, library)MarcFontaine
CSPM-ToProlog140.0some modules specific for the ProB tool (bsd3, formal-methods, library)MarcFontaine
CSPM-cspm270.0cspm command line tool for analyzing CSPM specifications. (bsd3, concurrency, formal-methods, language, library, program)MarcFontaine
CTRex50.0Open records using closed type families. (bsd3, data, data-structures, library)AtzeVanDerPloeg
Cabal14662.5A framework for packaging Haskell software (bsd3, distribution, library)DuncanCoutts, IanLynagh, JohanTibell, MikhailGlushenkov, ryant
Cabal-ide-backend20.0A framework for packaging Haskell software (bsd3, distribution, library)MichaelSnoyman
CabalSearch40.0Search cabal packages by name (bsd3, program, utils)JohanBrinch
Capabilities20.0Separate and contain effects of IO monad. (bsd3, generics, library, security)BaldurBlondal
CarneadesDSL130.0An implementation and DSL for the Carneades argumentation model. (ai, argumentation, bsd3, embedded, library)BasVanGijzel
CarneadesIntoDung50.0A translation from the Carneades argumentation model into Dung's AFs. (ai, argumentation, bsd3, embedded, library, program)BasVanGijzel
Catana50.0A monad for complex manipulation of a stream. (bsd3, control, library)DustinDeWeese
ChannelT110.0Generalized stream processors (bsd3, control, enumerator, iteratee, library, pipes, proxies)pthariensflame
Chart4060.0A library for generating 2D Charts and Plots (bsd3, graphics, library)TimDocker
Chart-cairo290.0Cairo backend for Charts. (bsd3, graphics, library)TimDocker
Chart-diagrams3550.0Diagrams backend for Charts. (bsd3, graphics, library)TimDocker
Chart-gtk280.0Utility 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
CheatSheet510.0A Haskell cheat sheet in PDF and literate formats. (bsd3, help, program)JustinBailey
Checked50.0Inbuilt checking for ultra reliable computing (bsd3, data, library)RobertOnslow
Chitra90.0A platform independent mechanism to render graphics using vnc. (bsd3, graphics, program)KashyapChatamballi
ClassLaws70.0Stating and checking laws for type class methods (bsd3, library, testing)PatrikJansson
ClassyPrelude20.0Prelude replacement using classes instead of concrete types where reasonable (bsd3, control, data, library)SveinOveAas
Clean (deprecated in favor of definitive-base)40.0A light, clean and powerful utility library (bsd3, control, deprecated, library)MarcCoiffier
Clipboard300.0System clipboard interface. (bsd3, library, system)DanielDiaz
Coadjute (deprecated)70.0A generic build tool (bsd3, deprecated, development, library)MattiNiemenmaa
Codec-Compression-LZF50.0LZF compression bindings. (bsd3, codec, library)DonaldStewart
Codec-Image-DevIL170.0An FFI interface to the DevIL library (bsd3, codecs, library)LukePalmer
Combinatorrent130.0A concurrent bittorrent client (bsd3, network, program)JesperLouisAndersen
Command (deprecated in favor of system-command)150.0A replacement for System.Exit and System.Process (bsd3, deprecated, library, system)TonyMorris
ComonadSheet30.0A library for expressing spreadsheet-like computations as the fixed-points of comonads. (bsd3, control, library)kwf
Compactable (deprecated in favor of compactable)80.0A generalization for containers that can be stripped of Nothing (bsd3, control, deprecated, library)fresheyeball
Concurrent-Cache112.0A Cached variable for IO functions. (bsd3, concurrency, library)Ofenhed
Concurrential70.0Mix concurrent and sequential computation (bsd3, control, library)alexvieth
Condor50.0Information retrieval library (bsd3, library, program, search, text)klangner
ConfigFile470.0Configuration file reading & writing (bsd3, library, parsing)JohnGoerzen
ConsStream20.0Trivial re-export of Wouter Swierstra's Stream package, avoiding module name clash. (bsd3, data, library)ConalElliott
ConstraintKinds120.0Repackages standard type classes with the ConstraintKinds extension (bsd3, control, library)MikeIzbicki
Consumer40.0A monad and monad transformer for consuming streams (bsd3, library, monads)JeremyShaw
ContArrow100.0Control.Arrow.Transformer.Cont (bsd3, control, library)EvgenyJukov
ContextAlgebra50.0Implementation of the context algebra. (bsd3, math, program)jhahn
Contract40.0Practical typed lazy contracts. (bsd3, development, library)OlafChitil
Control-Engine (deprecated)200.0A parallel producer/consumer engine (thread pool) (bsd3, control, deprecated, library)ThomasDuBuisson
Control-Monad-MultiPass40.0A Library for Writing Multi-Pass Algorithms. (bsd3, control, library)KevinBackhouse
Control-Monad-ST210.0A 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
CoreErlang50.0Manipulating Core Erlang source code (bsd3, language, library)AlexKropivny, HenriqueFerreiro
CoreFoundation20.0Bindings to Mac OSX's CoreFoundation framework (bsd3, library, system)ReinerPope
Coroutine30.0Type-safe coroutines using lightweight session types. (bsd3, control, library)RyanIngram
CouchDB210.0CouchDB interface (bsd3, database, library)GaneshSittampalam, SimonMichael
CurryDB30.0CurryDB: In-memory Key/Value Database (benchmark, bsd3, database, library, program)HideyukiTanaka
DBlimited50.0A command-line SQL interface for flat files (tdf,csv,etc.) (bsd3, database, program)JohnMayer
DBus210.0D-Bus bindings (bsd3, desktop, library, network)AlexanderKojevnikov, DavidHimmelstrup, GwernBranwen
DOM70.0DOM Level 2 bindings for the WebBits package. (bsd3, library, web)DmitryGolubovsky
DP50.0Pragmatic framework for dynamic programming (algorithms, bsd3, library, math, natural-language-processing)SashaRush
DPutils110.0utilities for DP (benchmark, bsd3, data, library)ChristianHoener
DRBG410.0Deterministic random bit generator (aka RNG, PRNG) based HMACs, Hashes, and Ciphers. (bsd3, cryptography, library)ThomasDuBuisson
DSA80.0Implementation of DSA, based on the description of FIPS 186-4 (bsd3, codec, cryptography, library)AdamWick
DSH500.0Database Supported Haskell (bsd3, database, library, program)GeorgeGiorgidze, JeroenWeijers, AlexUlrich, AlexUlrich2
DTC90.0Data To Class transformation. (bsd3, language, library)DanielDiaz
Data-Angle30.0Geometric angles (bsd3, data, library, math)deadmanswitch
Data-Hash-Consistent50.0Provide a simple consistent hashing mechanism (bsd3, data, library)BradClawsie
DataTreeView40.0A GTK widget for displaying arbitrary Data.Data.Data instances (bsd3, debug, development, gui, library)DanielSchuessler
Decimal290.0Decimal numbers with variable precision (bsd3, library, math)PaulJohnson
DeepArrow160.0Arrows for "deep application" (bsd3, combinators, control, library)ConalElliott
DescriptiveKeys40.0A library for specifying xmonad key bindings with functionality. (bsd3, library, system)TonyMorris
Dflow20.0Processing Real-time event streams (bsd3, library, reactivity)PaulJohnson
Diff2250.0O(ND) diff algorithm in haskell. (algorithms, bsd3, library)SterlingClover
DifferenceLogic40.0A theory solver for conjunctions of literals in difference logic (bsd3, library, math)dillonhuff
Digit (deprecated in favor of digit)90.0A data-type representing digits 0-9 (bsd3, data, deprecated, library)TonyMorris
DimensionalHash170.0An n-dimensional hash using Morton numbers. (algorithms, bsd3, data, library)GhassenHamrouni
DirectSound40.0Partial binding to the Microsoft DirectSound API. (bsd3, library, sound)BalazsKomuves
DisTract30.0Distributed Bug Tracking System (bsd3, library, program, system)GwernBranwen
Dish90.0Hash modules (currently Murmur3) (bsd3, data, library, program)zcourts
DistanceTransform20.0Distance transform function. (bsd3, library, math)AnthonyCowley
DistanceUnits30.0A comprehensive distance library (bsd3, data, library)MattGambogi
Docs30.0Documentation types library. (bsd3, documentation, library)DanielDiaz
DrHylo50.0A tool for deriving hylomorphisms (bsd3, language, library, program)HugoPacheco
DrIFT170.0Program to derive type class instances (bsd3, data-structures, library, program)KiwamuOkabe
DrIFT-cabalized (deprecated in favor of DrIFT)90.0Program to derive type class instances (bsd3, data-structures, deprecated, program)GwernBranwen, KiwamuOkabe
Dung50.0An implementation of the Dung argumentation frameworks. (ai, argumentation, bsd3, embedded, library, program)BasVanGijzel
DysFRP20.0dysFunctional Reactive Programming (bsd3, frp, library)MarekMaterzok
DysFRP-Cairo20.0dysFunctional Reactive Programming on Cairo (bsd3, frp, library)MarekMaterzok
DysFRP-Craftwerk20.0dysFunctional Reactive Programming on Craftwerk (bsd3, frp, library)MarekMaterzok
EEConfig30.0ExtremlyEasyConfig - Extremly Simple parser for config files (bsd3, library, parsing)BartoszWojcik
Earley350.0Parsing all context-free grammars using Earley's algorithm. (benchmark, bsd3, library, parsing)OlleFredriksson, phadej
Ebnf2ps130.0Peter's Syntax Diagram Drawing Tool (bsd3, language, program)PeterThiemann, FranklinChen
EitherT (deprecated in favor of either)50.0EitherT monad transformer (bsd3, control, deprecated, library)EyalLotem
Elm (deprecated in favor of elm-compiler)650.0The Elm language module. (bsd3, compiler, deprecated, language, library, program)EvanCzaplicki
Empty60.0A type class for empty containers (bsd3, control, library)fresheyeball
EnumContainers30.0Simple Enum-class-based int containers (bsd3, data, library)EyalLotem
EnumMap40.0More general IntMap replacement. (bsd3, data-structures, library)JohnVanEnk
Eq (deprecated)200.0Render math formula in ASCII, and perform some simplifications (bsd3, deprecated, language, math, program)VincentBerthoux
EqualitySolver30.0A theory solver for conjunctions of literals in the theory of uninterpreted functions with equality (bsd3, library, math)dillonhuff
EstProgress50.0Methods for estimating the progress of functions (bsd3, data, library)JamesCandy
EtaMOO60.0A new implementation of the LambdaMOO server (bsd3, network, program)RobLeslie
Eternal10Seconds40.0A 2-D shooting game (bsd3, game, program)HirotoKoyama
EuroIT40.0Library for using euro currency, italian language (bsd3, data, library)PaoloVeronelli
Euterpea292.0Library for computer music research and education (bsd3, library, sound)dwincort, DonyaQuick
EventSocket30.0Interfaces with FreeSwitch Event Socket. (bsd3, library, network)DavidAustin
Extra (deprecated in favor of sr-extra, extra)240.0A grab bag of modules. (bsd3, deprecated, library, unclassified)DavidFox, JeremyShaw
FPretty130.0Efficient simple pretty printing combinators (bsd3, library, text.prettyprint)OlafChitil
FTGL170.0Portable TrueType font rendering for OpenGL using the Freetype2 library (bsd3, graphics, library)JeffersonHeard, laquendi
FTGL-bytestring30.0Portable TrueType font rendering for OpenGL using the Freetype2 library (bsd3, graphics, library)seagull
FTPLine150.0A command-line FTP client. (bsd3, network, program)DanielDiaz
Facts70.0A collection of facts about the real world. (bsd3, factual, library)AlexanderSolla
FastPush110.0A monad and monad transformer for pushing things onto a stack very fast. (bsd3, control, library)wyager
FastxPipe (deprecated in favor of pipes-fastx)10.0Fasta and Fastq streaming (bsd3, deprecated, library, unclassified)rcallahan
FenwickTree70.0Data structure for fast query and update of cumulative sums (bsd3, data-structures, library)MichalGajda
FerryCore110.0Ferry Core Components (bsd3, database, library)JeroenWeijers
FieldTrip140.0Functional 3D (bsd3, graphics, library)ConalElliott
FileManip (deprecated in favor of filemanip)170.0Expressive file and directory manipulation for Haskell. (bsd3, deprecated, library, system)BryanOSullivan
FileManipCompat200.0Expressive file and directory manipulation for Haskell. (bsd3, library, system)ThomasHartman
FilePather (deprecated in favor of filepather)160.0Functions on System.FilePath (bsd3, deprecated, library, system)TonyMorris
FileSystem50.0File system data structure and monad transformer. (bsd3, library, system)DanielDiaz
Finance-Quote-Yahoo180.0Obtain quote data from finance.yahoo.com (bsd3, library, web)BradClawsie
Finance-Treasury60.0Obtain Treasury yield curve data (bsd3, library, web)DonaldStewart, StephenLihn
FindBin210.0Locate directory of original program (bsd3, library, system)AudreyTang
FirstOrderTheory20.0Grammar and typeclass for first order theories (bsd3, library, math)dillonhuff
FixedPoint-simple150.0Fixed point, large word, and large int numerical representations (types and common class instances) (bsd3, data, library)ThomasDuBuisson
Flippi70.0Wiki (bsd3, program, text)AudreyTang, GwernBranwen
FloatingHex470.0Read and write hexadecimal floating point numbers (bsd3, library, tools)LeventErkok
Folly170.0A first order logic library in Haskell (bsd3, library, program, theorem-provers)dillonhuff
FontyFruity332.25A true type file format loader (bsd3, font, graphics, library, text)VincentBerthoux
ForSyDe80.0ForSyDe's Haskell-embedded Domain Specific Language. (bsd3, hardware, language, library)AlfonsoAcosta, HoseinAttarzadeh, ugeorge
ForestStructures40.0Tree- and forest structures (benchmark, bioinformatics, bsd3, formal-languages, library)ChristianHoener
ForkableT60.0Forkable monad transformers (bsd3, control, library)AndrasSlemmer
Frames240.0Data frames For working with tabular data files (benchmark, bsd3, data, library)AnthonyCowley
FreeTypeGL (deprecated in favor of FTGL)60.0Loadable texture fonts for OpenGL. (bsd3, deprecated, graphics, library)EyalLotem
FunGEn210.0A lightweight, cross-platform, OpenGL/GLUT-based game engine. (bsd3, game, library, program)MiloslavRaus, SimonMichael
Fungi150.0Funge-98 interpreter written in Haskell (bsd3, compilers-interpreters, program)ThomasEding
GA70.0Genetic algorithm library (ai, algorithms, bsd3, library, optimisation)KennethHoste
GHood120.0A graphical viewer for Hood (bsd3, debug, library)HugoPacheco, JanisVoigtlaender
GLFW300.0A Haskell binding for GLFW (bsd3, graphics, library)PaulLiu
GLFW-OGL30.0A binding for GLFW (OGL) (bsd3, graphics, library)NealAlexander
GLFW-b720.0Bindings to GLFW OpenGL library (bsd3, graphics, library)BrianLewis, SchellScivally, javjarfer
GLFW-b-demo190.0GLFW-b demo (bsd3, graphics, program)BrianLewis, SchellScivally, javjarfer
GLFW-task30.0GLFW utility functions to use together with monad-task. (bsd3, graphics, library)PaulLiu
GLHUI50.0Open OpenGL context windows in X11 with libX11 (bsd3, graphics, library)HugoGomes
GLURaw820.0A raw binding for the OpenGL graphics system (bsd3, graphics, library)JasonDagit, SvenPanne
GLUT1140.0A binding for the OpenGL Utility Toolkit (bsd3, graphics, library)ChrisDornan, IanLynagh, JasonDagit, SvenPanne
GLUtil420.0Miscellaneous OpenGL utilities. (bsd3, graphics, library)AnthonyCowley
GPX350.0Parse GPX files (bsd3, library, utils)ThomasDuBuisson, TonyMorris
GPipe-Collada80.0Load GPipe meshes from Collada files (bsd3, graphics, library)TobiasBexelius
GPipe-TextureLoad90.0Load GPipe textures from filesystem (bsd3, graphics, library)TobiasBexelius
GTALib80.0A library for GTA programming (bsd3, language, library)KentoEmoto
Gamgine110.0Some kind of game library or set of utilities. (bsd3, library)DanielTrstenjak
Ganymede70.0An Io interpreter in Haskell. (bsd3, language, program)WaltBaety
GaussQuadIntegration30.0Non-adaptive Gaussian quadrature for numeric integraton (bsd3, library, math)GrigorySarnitsky
GeBoP120.0Several games (bsd3, game, program)HenkJanVanTuyl
GenSmsPdu20.0Automatic SMS message generator (bsd3, program, testing)KwanghoonChoi
GenericPretty490.0A generic, derivable, haskell pretty printer. (bsd3, generics, library, pretty-printer, text)RazvanRanca
Geodetic (deprecated in favor of geodetic)80.0Geodetic calculations (bsd3, deprecated, library, utils)TonyMorris
GeomPredicates40.0Geometric predicates (bsd3, library, math)NealAlexander
GeomPredicates-SSE30.0Geometric predicates (Intel SSE) (bsd3, library, math)NealAlexander
Gifcurry542.0GIF creation utility. (application, bsd3, graphics, library, program)lettier
Glob5730.0Globbing library (bsd3, library, system)MattiNiemenmaa
GoogleChart60.0Generate web-based charts using the Google Chart API (bsd3, graphics, library)EvanMartin
GoogleDirections40.0Haskell Interface to Google Directions API (bsd3, library, network)KevinOberlies
GoogleSB20.0Interface to Google Safe Browsing API (bsd3, library, security)AlexOtt
GotoT-transformers30.0A monad and monadic transformer providing "goto" functionality (bsd3, control, library)GregoryCrosswhite
Grafos30.0Grafos Haskell (bsd3, library, unclassified)jppianta83
GraphSCC430.0Tarjan's algorithm for computing the strongly connected components of a graph. (algorithms, bsd3, library)IavorDiatchki
Grempa130.0Embedded grammar DSL and LALR parser generator (bsd3, library, parsing)DavidFox, OlleFredriksson
GroteTrap140.0Parser and selection library for expression languages. (bsd3, language, library)MartijnVanSteenbergen
GrowlNotify90.0Notification utility for Growl. (bsd3, library, network, program)NicholasBurlett
GtkGLTV20.0OpenGL support for Gtk-based GUIs for Tangible Values (bsd3, library, user-interfaces)ConalElliott
GtkTV260.0Gtk-based GUIs for Tangible Values (bsd3, library, user-interfaces)ConalElliott
GuiHaskell50.0A graphical REPL and development environment for Haskell (bsd3, development, program)NeilMitchell
GuiTV60.0GUIs for Tangible Values (bsd3, interfaces, library, user-interfaces)ConalElliott
H80.0The Haskell/R mixed programming environment. (bsd3, ffi, program)MathieuBoespflug
HAppS-Data (deprecated in favor of happstack-data)60.0HAppS data manipulation libraries (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-IxSet (deprecated in favor of happstack-ixset)70.0 (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-Server (deprecated in favor of happstack-server)90.0Web related tools and services. (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-State (deprecated in favor of happstack-state)70.0Event-based distributed state. (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppS-Util (deprecated in favor of happstack-util)70.0Web framework (bsd3, deprecated, distributed-computing, library, web)DavidHimmelstrup
HAppSHelpers (deprecated in favor of happstack-helpers)220.0OBSOLETE. Please use happstack-helpers (bsd3, deprecated, library, web)ThomasHartman
HCL150.0High-level library for building command line interfaces. (bsd3, library, program, user-interfaces)JustinBailey
HCard30.0A library for implementing a Deck of Cards (bsd3, game, library)JoeFredette
HCodecs380.0A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files. (bsd3, codec, library)GeorgeGiorgidze, DonyaQuick
HDBC810.0Haskell Database Connectivity (bsd3, database, library)ErikHesselink, IsaacJones, JohnGoerzen, NicolasWu
HDBC-odbc680.0ODBC driver for HDBC (bsd3, database, library)IsaacJones, JohnGoerzen, NicolasWu, anton_dessiatov
HDBC-postgresql460.0PostgreSQL driver for HDBC (bsd3, database, library)ErikHesselink, IsaacJones, JohnGoerzen, NicolasWu
HDBC-session130.0Bracketed connection for HDBC (bsd3, database, library)KeiHibino
HDBC-sqlite3390.0Sqlite v3 driver for HDBC (bsd3, database, library)ErikHesselink, IsaacJones, JohnGoerzen
HDRUtils60.0Utilities for reading, manipulating, and writing HDR images (bsd3, graphics, library)JeffersonHeard
HERA30.0 (bsd3, library, math)LukePalmer
HFitUI50.0The library for generating a graphical interface on the web (bsd3, library, program, web)QSpider2017
HFuse171.5HFuse is a binding for the Linux FUSE library. (bsd3, library, system)GwernBranwen, MaximTreskin, PaulVanDerWalt, TaruKarttunen, M15K, dhrosa
HGL290.0A simple graphics library based on X11 or Win32 (bsd3, graphics, library)AlanHawkins, ChristophLueth
HGraphStorage50.0Graph database stored on disk (benchmark, bsd3, database, library)JeanPhilippeMoresmau
HHDL10.0Hardware Description Language embedded in Haskell. (bsd3, hardware, library)SergueyZefirov
HJScript230.0HJScript is a Haskell EDSL for writing JavaScript programs. (bsd3, language, library, web)JeremyShaw, NiklasBroberg
HJVM20.0A library to create a Java Virtual Machine and manipulate Java objects (bsd3, language, library)JeanPhilippeMoresmau
HJavaScript110.0HJavaScript is an abstract syntax for a typed subset of JavaScript. (bsd3, language, library)NiklasBroberg
HLearn-algebra (deprecated in favor of subhask)150.0Algebraic 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)60.0 (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)200.0Distributions for use with the HLearn library (bsd3, data-mining, deprecated, library, machine-learning, statistics)MikeIzbicki
HListPP30.0A preprocessor for HList labelable labels (bsd3, development, program)AdamVogt
HLogger (deprecated in favor of hlogger)20.0Simple, concurrent and easy-to-use logging library (bsd3, concurrency, deprecated, library, logging, program)JonKristensen
HMM50.0A hidden markov model library (algorithms, bsd3, data-mining, library, machine-learning)MikeIzbicki
HMap330.0Fast heterogeneous maps and unconstrained typeable like functionality. (bsd3, data, data-structures, library)AtzeVanDerPloeg
HMarkov90.0Markov-generated sequences (bsd3, library, text)swizzard
HNM70.0Happy Network Manager (bsd3, library, network, program, system)CetinSert
HODE30.0Binding to libODE (bsd3, game, library, physics)DavidHimmelstrup
HPDF1020.0Generation of PDF documents (bsd3, graphics, library)alpheccar
HPath90.0Extract Haskell declarations by name. (bsd3, library, program, source-tools, text)JasonDusek
HPi82.0GPIO, I2C and SPI functions for the Raspberry Pi. (bsd3, library, system)WJWH
HPlot60.0A minimal monadic PLplot interface for Haskell (bsd3, foreign, graphics, library, program)YakovZaytsev
HRay150.0Haskell raytracer (bsd3, graphics, program)GwernBranwen, KennethHoste
HSFFIG60.0Generate FFI import declarations from C include files (bsd3, ffi-tools, library, program)DmitryGolubovsky
HSGEP120.0Gene Expression Programming evolutionary algorithm in Haskell (ai, bsd3, library, program)MatthewSottile
HSet70.0Faux heterogeneous sets (bsd3, data, library)athanclark
HSlippyMap90.0OpenStreetMap (OSM) Slippy Map (bsd3, geography, library)alp
HSmarty70.0Small template engine (bsd3, library, text)AlexanderThiemann
HSoM70.0Library for computer music education (bsd3, library, sound)DonyaQuick
HSoundFile (deprecated in favor of sndfile-enumerators)30.0Audio file reading/writing (bsd3, codecs, deprecated, library, sound)JohnLato
HStringTemplate892.0StringTemplate implementation in Haskell. (bsd3, library, text)SterlingClover
HSvm170.0Haskell Bindings for libsvm (bsd3, classification, datamining, library)PaoloLosi, PavelRyzhov
HTTP14160.0A library for client-side HTTP (bsd3, library, network)BjornBringert, BryanOSullivan, DonaldStewart, DuncanCoutts, GaneshSittampalam, JohanTibell, SigbjornFinne
HTTP-Simple (deprecated in favor of HTTP)60.0DEPRECATED Enable simple wrappers to Network.HTTP (bsd3, deprecated, library, network)BradClawsie
HUnit17862.0A 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-Plus130.0A test framework building on HUnit. (bsd3, library, test, testing)emc2
HUnit-approx50.0Approximate equality for floating point numbers with HUnit (bsd3, library, testing)RichardEisenberg
HXMPP (deprecated in favor of pontarius-xmpp)20.0A (prototyped) easy to use XMPP library (bsd3, deprecated, library, network, program)JonKristensen
HXQ610.0A Compiler from XQuery to Haskell (bsd3, library, xml)LeonidasFegaras
HaRe510.0the Haskell Refactorer. (bsd3, development, refactoring)AlanZimmerman, ChrisBrown
HaTeX722.0The Haskell LaTeX library. (bsd3, latex, library)DanielDiaz
HaTeX-meta (deprecated)40.0This package is deprecated. From version 3, HaTeX does not need this anymore. (bsd3, deprecated, program, text)DanielDiaz
HaTeX-qq80.0Quasiquoters for HaTeX (bsd3, library, text)HiromiIshii
HaVSA80.0An implementation of the Version Space Algebra learning framework. (ai, bsd3, library, program)RoganCreswick
HackMail70.0A Procmail Replacement as Haskell EDSL (bsd3, library, network, program)JoeFredette
HandlerSocketClient90.0Haskell implementation of a HandlerSocket client (API). (bsd3, database, library)XingboWu
HandsomeSoup270.0Work with HTML more easily in HXT (bsd3, library, text)AdityaBhargava
Haschoo (deprecated)70.0Minimalist R5RS Scheme interpreter (bsd3, compilers-interpreters, deprecated, program)MattiNiemenmaa
HaskellForMaths550.0Combinatorics, group theory, commutative algebra, non-commutative algebra (bsd3, library, math)DavidAmos
HaskellNet310.0Client support for POP3, SMTP, and IMAP (bsd3, library, network)JonathanDaugherty, lemol
HaskellNet-SSL290.0Helpers to connect to SSL/TLS mail servers with HaskellNet (bsd3, library, network)DanielWright, lemol
HaskellTorrent60.0A concurrent bittorrent client (bsd3, network, program)JesperLouisAndersen
Haskelloids50.0A reproduction of the Atari 1979 classic "Asteroids" (bsd3, game, program)MatthewHayden
Hawk30.0Haskell Web Application Kit (bsd3, library, web)BjoernPeemoeller
Hclip350.0A small cross-platform library for reading and modifying the system clipboard. (bsd3, library, system)JensThomas
Hedi40.0Line oriented editor (bsd3, editor, library, program)PaoloVeronelli
HerbiePlugin20.0automatically improve your code's numeric stability (bsd3, library, math)MikeIzbicki
Hermes (deprecated)90.0Message-based middleware layer (bsd3, deprecated, library, middleware, network)SveinOveAas
Hieroglyph440.0Purely 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-Utils310.0Useful functions for Hipmunk (bsd3, game, library, physics)suzumiya
Hish100.0 (bsd3, command-line, console, library, program, shell)jaiyalas
Histogram60.0 (bsd3, charts, library)MikeIzbicki
Hoed290.0Lightweight algorithmic debugging. (bsd3, debug, library, trace)faddegon
HoleyMonoid70.0Monoids with holes. (bsd3, data-structures, library)MartijnVanSteenbergen
HongoDB30.0A Simple Key Value Store (bsd3, database, library)HideyukiTanaka
Hricket30.0A Cricket scoring application. (bsd3, game, program)AnthonyGrimes
Hs2lib170.0A Library and Preprocessor that makes it easier to create shared libs from Haskell programs. (bsd3, development, library, program)TamarChristina
HsASA40.0A haskell interface to Lester Ingber's adaptive simulating annealing code (bsd3, library, math)DonaldStewart, MalcolmWallace
HsHaruPDF40.0Haskell binding to libharu (http://libharu.sourceforge.net/) (bsd3, graphics, library)AudreyTang
HsJudy70.0Judy bindings, and some nice APIs (bsd3, data, library)GwernBranwen
HsOpenSSL-x509-system170.0Use the system's native CA certificate store with HsOpenSSL (bsd3, filesystem, library, system)MariosTitas
HsParrot80.0Haskell integration with Parrot virtual machine (bsd3, language, library, pugs)AudreyTang
HsPerl5150.0Haskell interface to embedded Perl 5 interpreter (bsd3, language, library, pugs)AudreyTang
HsTools40.0Haskell helper functions (bsd3, generic, library)ChristianHoener
Hsed80.0Stream Editor in Haskell (bsd3, editor, library, program)VitaliyRukavishnikov
Hsmtlib30.0Haskell library for easy interaction with SMT-LIB 2 compliant solvers. (bsd3, library, smt)roger62
HueAPI160.0API for controlling Philips Hue lights (bsd3, hardware, library)SjoerdVisscher
HulkImport60.0Easily bulk import CSV data to SQL Server (bsd3, data, library, program)smobs
Hydrogen30.0The library for generating a WebGL scene for the web (bsd3, library, program, web)QSpider2017
IDynamic30.0Indexable, serializable form of Data.Dynamic (bsd3, data, library)AlbertoCorona
IFS60.0Iterated Function System generation for Haskell (bsd3, graphics, library, program)alpheccar
IOR30.0Region based resource management for the IO monad. (bsd3, library, monadic-regions, system)IvanTomac
IORefCAS (deprecated in favor of atomic-primops)90.0Atomic compare and swap for IORefs and STRefs. (bsd3, data, deprecated, library)RyanNewton
IOSpec260.0A pure specification of the IO monad. (bsd3, library, testing)WouterSwierstra
IPv6Addr270.0Library to deal with IPv6 address text representations. (bsd3, library, network)MichelBoucey
IPv6DB160.0A RESTful Web Service for IPv6-related data (bsd3, database, library, network, program)MichelBoucey
IfElse880.0Anaphoric and miscellaneous useful control-flow (bsd3, control, library)IvanPerez, JeffersonHeard, keera_studios_ci
Imlib60.0 (bsd3, graphics, library)AndreasRaster, CaleGibbard
IndexedList20.0Length- and element-indexed lists sitting somewhere between homogeneous and fully heterogeneous. (bsd3, data, library)kwf
InfixApplicative70.0liftA2 for infix operators. (bsd3, control, library)ThomasDavie
IntervalMap260.0Containers for intervals, with efficient search. (benchmark, bsd3, data, library)ChristophBreitkopf
IsNull30.0A typeclass to determine if a given value is null. (bsd3, data, library)jcristovao
JSON-Combinator (deprecated in favor of lens)310.0A combinator library on top of a generalised JSON type (bsd3, combinators, deprecated, json, library)TonyMorris
JSON-Combinator-Examples (deprecated in favor of lens)30.0Example uses of the JSON-Combinator library. (bsd3, combinators, deprecated, library)TonyMorris
JSONParser70.0Parse JSON (bsd3, library, text)AlanHawkins
JSONb170.0JSON parser that uses byte strings. (bsd3, library, text)JasonDusek
Javasf (deprecated in favor of javasf)20.0A utility to print the SourceFile attribute of one or more Java class files. (bsd3, deprecated, language, program)TonyMorris
Javav (deprecated in favor of javav)130.0A utility to print the target version of Java class files. (bsd3, deprecated, language, program)TonyMorris
JsContracts80.0Design-by-contract for JavaScript (bsd3, language, library, program)ArjunGuha
JsonGrammar180.0Combinators for bidirectional JSON parsing (bsd3, json, language, library)MartijnVanSteenbergen
JuicyPixels8532.75Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance) (bsd3, codec, graphics, image, library)VincentBerthoux
JuicyPixels-canvas10.0Functions for drawing lines, squares and so on pixel by pixel (bsd3, graphics, library)eax
JuicyPixels-extra130.0Efficiently scale, crop, flip images with JuicyPixels (benchmark, bsd3, graphics, image, library)mrkkrp
JuicyPixels-repa160.0Convenience functions to obtain array representations of images. (bsd3, graphics, library)ThomasDuBuisson
JuicyPixels-scale-dct90.0Scale JuicyPixels images with DCT (bsd3, library, web)phadej
JuicyPixels-util30.0Convert JuicyPixel images into RGBA format, flip, trim and so on (bsd3, control, library)FumiakiKinoshita
JunkDB30.0 (bsd3, database, library)seagull
JunkDB-driver-gdbm40.0 (bsd3, database, library)seagull
JunkDB-driver-hashtables20.0 (bsd3, database, library)seagull
KMP60.0Knuth–Morris–Pratt string searching algorithm (algorithms, bsd3, library)CindyLinz
Kalman (deprecated in favor of kalman)50.0A slightly extended Kalman filter (bsd3, deprecated, library, math)DominicSteinitz
KdTree80.0KdTree, for efficient search in K-dimensional point clouds. (bsd3, graphics, library, program)IssacTrotts
Kleislify50.0Variants of Control.Arrow functions, specialised to kleislis. (bsd3, control, library)DylanJust
Kriens50.0Category for Continuation Passing Style (bsd3, control, library)matteo_provenzano
KyotoCabinet30.0Kyoto 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
LDAP230.0Haskell binding for C LDAP API (bsd3, library, network)EdwardYang, JohnGoerzen, ip1981
LRU (deprecated)40.0Implements an LRU data structure (bsd3, deprecated, library, unclassified)AdamLangley
LambdaCalculator110.0A basic lambda calculator with beta reduction and a REPL (bsd3, language, program)ThomasDuBuisson
LambdaDB42.0On-memory Database using Lambda Function environment. (bsd3, database, library, program)Ailrun
LambdaHack442.0A game engine library for roguelike dungeon crawlers (bsd3, game, game-engine, library, program)AndresLoeh, MikolajKonarski
LambdaINet90.0Graphical Interaction Net Evaluator for Optimal Evaluation (application, bsd3, program)PaulLiu
LambdaPrettyQuote60.0Quasiquoter, and Arbitrary helpers for the lambda calculus. (bsd3, language, library)JonathanFischoff
Lastik (deprecated)220.0A library for compiling programs in a variety of languages (bsd3, deprecated, development, library)TonyMorris
LibClang200.0Haskell bindings for libclang (a C++ parsing library) (bsd3, language, library)ChetanTaralekar, deech
LibZip230.0Bindings to libzip, a library for manipulating zip archives. (bsd3, codec, foreign, library)SergeyAstanin
LinearSplit90.0Partition the sequence of items to the subsequences in the order given (algorithms, bsd3, library)VitaliyRukavishnikov
LinguisticsTypes50.0Collection 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
List1160.0List monad transformer and class (bsd3, control, library)YairChuchem
ListLike2800.0Generic support for list-like structures (bsd3, generics, library)DavidFox, JohnGoerzen, JohnLato
ListTree150.0Trees and monadic trees expressed as monadic lists where the underlying monad is a list (algorithms, bsd3, library)YairChuchem
ListWriter30.0define a list constant using Monadic syntax other than overhead [,] (bsd3, library, syntax)YLiLarry
ListZipper140.0Simple zipper for lists (bsd3, data, library)RyanIngram
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-network60.0an adapter for LogicGrowsOnTrees that uses multiple processes running in a network (bsd3, control, distributed-computing, library, logic, parallelism)GregoryCrosswhite
LogicGrowsOnTrees-processes70.0an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism (benchmark, bsd3, control, distributed-computing, library, logic, parallelism)GregoryCrosswhite
LslPlus360.0An execution and testing framework for the Linden Scripting Language (LSL) (bsd3, language, program)RobertGreayer
MFlow590.0stateful, RESTful web framework (application-server, bsd3, library, web)AlbertoCorona
MHask40.0The category of monads (bsd3, control, library)DanBurton
MSQueue20.0Michael-Scott queue. (bsd3, data, library)julek
MagicHaskeller290.0Automatic inductive functional programmer by systematic search (bsd3, language, library, program)SusumuKatayama
MailchimpSimple40.0Haskell library to interact with Mailchimp JSON API Version 3.0 (bsd3, library, web)dananji9131
MaybeT110.0MaybeT monad transformer (bsd3, control, library)CaleGibbard, DonaldStewart, EricKidd
MaybeT-monads-tf (deprecated in favor of monads-tf)70.0MaybeT monad transformer compatible with monads-tf (deprecated) (bsd3, control, deprecated, library)BenMillwood
MaybeT-transformers50.0MaybeT monad transformer using transformers instead of mtl. (bsd3, control, library)ErikHesselink, SebastiaanVisser
MazesOfMonad210.0Console-based Role Playing Game (bsd3, game, program)JeanPhilippeMoresmau
MeanShift10.0Mean shift algorithm (bsd3, library, math)VilleTirronen
Measure60.0A library for units of measurement (bsd3, data, library)TonyMorris
MemoTrie1650.0Trie-based memo functions (bsd3, data, library)ConalElliott
MetaObject160.0A 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
MicrosoftTranslator20.0Interface for Microsoft Translator (bsd3, language, library)netogallo
MissingH1782.5Large utility library (bsd3, library, unclassified)JohnGoerzen, davean
MissingK320.0Useful types and definitions missing from other libraries (bsd3, development, library)IvanPerez, keera_studios_ci
MissingM20.0findM and other missing 'M's (bsd3, control, library)DylanJust
Moe20.0A FRP library based on signal functions. (bsd3, frp, library, program)XinyuJiang
MonadCatchIO-mtl (deprecated in favor of exceptions)280.0Monad-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)440.0Monad-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
MonadCompose160.0Methods for composing monads. (bsd3, library, monad)JamesCandy
MonadLab70.0Automatically generate layered monads (bsd3, library, monads, program)AdamProcter
MonadPrompt360.0MonadPrompt, implementation & examples (bsd3, control, library)CaleGibbard, JamesCook, RyanIngram
MonadRandom10000.0Random-number generation monad. (bsd3, control, library)BrentYorgey, CaleGibbard, EricKidd, LukePalmer, PaoloVeronelli, PatrickPalka
MonadRandomLazy50.0Lazy monad for psuedo random-number generation. (bsd3, control, library)NormanRamsey
Monaris90.0A simple tetris clone (bsd3, game, program)FumiakiKinoshita
Monatron70.0Monad transformer library with uniform liftings (bsd3, control, library)TomSchrijvers
Monatron-IO30.0MonadIO instances for the Monatron transformers. (bsd3, control, library)TobiasBrandt
Monocle110.0Symbolic computations in strict monoidal categories with LaTeX output. (bsd3, library, math)OsmanBineev
Munkres40.0Munkres' assignment algorithm (hungarian method) (algorithms, bsd3, library)BalazsKomuves
Munkres-simple20.0Simple and typesafe layer over the Munkres package. (algorithms, bsd3, library)ScrambledEggs
NGrams50.0Simple application for calculating n-grams using Google. (bsd3, natural-language-processing, program)JustinBailey
NXTDSL50.0Generate NXC Code from DSL (bsd3, compilers-interpreters, language, library, program)AlexanderThiemann
NanoProlog200.0Very small interpreter for a Prolog-like language (bsd3, language, library, program)DoaitseSwierstra, JurrienStutterheim, joaopizani
NaturalLanguageAlphabets100.0Simple scoring schemes for word alignments (benchmark, bsd3, library, natural-language-processing)ChristianHoener
NaturalSort (deprecated)30.0Natural sorting for strings (bsd3, deprecated, text)JoachimFasting
NearContextAlgebra40.0Context Algebra of near (bsd3, math, program)jhahn
NestedFunctor30.0Nested composition of functors with a type index tracking nesting. (bsd3, data, library)kwf
NetSNMP240.0Bindings for net-snmp's C API for clients (bsd3, library, network)JohnDorsey, PavloKerestey
NineP110.09P2000 in pure Haskell (bsd3, data, library)DaveLeimbach, SergeyAlirzaev
Ninjas10.0Ninja game (bsd3, game, program)EricMertens
NoHoed210.0Placeholder package to preserve debug ability via conditional builds (bsd3, debugging, library)PepeIborra
NoSlow80.0Microbenchmarks for various array libraries (bsd3, development, profiling, program)RomanLeshchinskiy
Noise170.0A Haskell coherent noise generator based on libnoise (bsd3, graphics, library, math, noise)HugoGomes
Nomyx (deprecated in favor of nomyx-server)250.0A Nomic game in haskell (bsd3, deprecated, game, program)CorentinDupont
Nomyx-Core220.0A Nomic game in haskell (bsd3, game, library)CorentinDupont
Nomyx-Language420.0Language to express rules for Nomic (bsd3, language, library)CorentinDupont
Nomyx-Rules (deprecated in favor of Nomyx-Language)40.0Language to express rules for Nomic (bsd3, deprecated, language, library)CorentinDupont
Nomyx-Web210.0Web gui for Nomyx (bsd3, game, library)CorentinDupont
NonEmpty40.0Library providing a non-empty list datatype, and total functions operating on it (bsd3, data, library)RobinGreen
NonEmptyList (deprecated in favor of semigroups)230.0A list with a length of at least one. (bsd3, data, deprecated, library)TonyMorris
NumInstances1060.0Instances of numeric classes for functions and tuples (bsd3, data, library)ConalElliott
NumLazyByteString (deprecated)30.0Num, Enum, Eq, Integral, Ord, Real, and Show instances for Lazy ByteStrings (bsd3, data, deprecated, library)ThomasDuBuisson
NumberSieves80.0Number Theoretic Sieves: primes, factorization, and Euler's Totient (bsd3, library, math)LeonSmith
OGL90.0A context aware binding for the OpenGL graphics system (bsd3, graphics, library)NealAlexander
OSM180.0Parse OpenStreetMap files (bsd3, library, utils)ThomasDuBuisson, TonyMorris
ObjectIO30.0 (bsd3, library, unclassified)
ObjectName540.0Explicitly handled object names (bsd3, data, library)SvenPanne
Obsidian80.0Embedded language for GPU Programming (bsd3, language, library)JoelSvensson
Octree180.0Simple unbalanced Octree for storing data about 3D points (bsd3, data, library)MichalGajda
OddWord80.0Provides a wrapper for deriving word types with fewer bits. (bsd3, data, library)RobinKay
Omega170.0Integer sets and relations using Presburger arithmetic (bsd3, data, library)ChristopherRodrigues
OnRmt30.0Text UI library for performing parallel remote SSH operations (bsd3, library, program, system)KevinQuick
OneTuple3460.0Singleton Tuple (bsd3, library, unclassified)JohnDorsey
Only1560.0The 1-tuple type or single-value "collection" (bsd3, data, library)HerbertValerioRiedel
OpenAL420.0A binding to the OpenAL cross-platform 3D audio API (bsd3, library, sound)AndrewMiller, BenFoppa, SvenPanne
OpenCL140.0Haskell high-level wrapper for OpenCL (bsd3, ffi, gpu, graphics, library)LuisCabellos
OpenCLRaw40.0The OpenCL Standard for heterogenous data-parallel computing (bsd3, graphics, library)JeffersonHeard
OpenCLWrappers90.0The OpenCL Standard for heterogenous data-parallel computing (bsd3, ffi, library)EmilKarlson
OpenGL1530.0A binding for the OpenGL graphics system (bsd3, graphics, library)JasonDagit, SvenPanne
OpenGLCheck20.0Quickcheck instances for various data structures. (bsd3, graphics, library)ThomasDavie
OpenGLRaw1130.0A raw binding for the OpenGL graphics system (bsd3, graphics, library)JasonDagit, SvenPanne
OpenSCAD80.0ADT wrapper and renderer for OpenSCAD models. (bsd3, graphics, library)MikeMeyer
OpenVG180.0OpenVG (ShivaVG-0.2.1) binding (bsd3, graphics, library)StephenTetley
OpenVGRaw70.0Raw binding to OpenVG (ShivaVG-0.2.1 implementation). (bsd3, graphics, library)StephenTetley
Operads160.0Groebner basis computation for Operads. (bsd3, library, math)MikaelVejdemoJohansson
OptDir50.0The OptDir type for representing optimization directions. (bsd3, data, library, optimisation, optimization)MasahiroSakai
OrPatterns30.0A quasiquoter for or-patterns (bsd3, development, library)AdamVogt
OrchestrateDB40.0Unofficial Haskell Client Library for the Orchestrate.io API (bsd3, database, library)dwd31415
OrderedBits160.0Efficient ordered (by popcount) enumeration of bits (benchmark, bsd3, data, library)ChristianHoener
Ordinals40.0Ordinal arithmetic (bsd3, library, math)KiYungAhn
PArrows80.0Arrow parser combinators similar to Parsec (bsd3, library, parsing)GwernBranwen
PBKDF2 (deprecated in favor of pbkdf, scrypt, bcrypt)170.0Make password-based security schemes more secure. (bsd3, cryptography, deprecated, library)AdamBergmark, ErikHesselink, JeremyShaw, ThomasHartman
PPrinter50.0A generic derivable Haskell pretty printer (bsd3, generics, library, pretty-printer, text)iamzhenyi
PSQueue150.0Priority Search Queue (bsd3, data-structures, library)ScottDillard
PUH-Project30.0This is a package which includes Assignments, Email, User and Reviews modules for Programming in Haskell course. (bsd3, data, library)att
PageIO70.0Page-oriented extraction and composition library (bsd3, library, program, text)AudreyTang
Paillier30.0a simple Paillier cryptosystem (bsd3, library, math)onemouth
PandocAgda40.0Pandoc support for literate Agda (bsd3, dependent-types, library, program)PeterDivianszky
Paraiso150.0a code generator for partial differential equations solvers. (bsd3, language, library)TakayukiMuranushi
ParserFunction (deprecated in favor of attoparsec)150.0Parse and evaluate mathematical expressions. (bsd3, deprecated, library, math, parsing)EnzoHaussecker
PartialTypeSignatures30.0emulate partial type signatures with template haskell (bsd3, development, library)AdamVogt
PathTree30.0A tree used to merge and maintain paths (bsd3, data, library)pjrt
Pathfinder210.0Relational optimiser and code generator (bsd3, database, ffi, library)GeorgeGiorgidze, JeroenWeijers, AlexUlrich
Peano90.0simple Peano numbers (bsd3, data, library)AndrasSlemmer, FrancescoMazzoli
PeanoWitnesses10.0GADT type witnesses for Peano-style natural numbers. (bsd3, data, library)kwf
PerfectHash180.0A perfect hashing library for mapping bytestrings to values. (bsd3, data, data-structures, library)MarkWotton
PermuteEffects60.0Permutations of effectful computations (bsd3, control, library)MartijnVanSteenbergen
Pipe (deprecated)150.0Process piping library (bsd3, deprecated, library, system)MattiNiemenmaa
Piso80.0Partial isomorphisms (bsd3, data, library)MartijnVanSteenbergen
PlayHangmanGame40.0Play Hangman Game (bsd3, game, program)HaishengWu
PlayingCards30.0Playing cards api (bsd3, game, library)dillonhuff
Plot-ho-matic520.0Real-time line plotter for generic data (bsd3, graphics, library)GregHorn
PlslTools40.0So far just a lint like program for PL/SQL. Diff and refactoring tools are planned (bsd3, pl-sql-tools, program)LarryLayland
PortMidi430.0A binding for PortMedia/PortMidi (bsd3, library, sound)PaulLiu
PrimitiveArray400.0Efficient multidimensional arrays (bsd3, data, library)ChristianHoener
PrimitiveArray-Pretty70.0Pretty-printing for primitive arrays (bsd3, data, library)ChristianHoener
ProbabilityMonads20.0Probability distribution monads. (bsd3, control, library)EricKidd
PropLogic80.0Propositional Logic (algorithms, bsd3, library, logic, program)DavidFox
Proper80.0An implementation of propositional logic in Haskell (bsd3, library, program, unclassified)dillonhuff
ProxN30.0Proximity sets in N dimensions (bsd3, library, math)AndrasSlemmer
Pugs460.0A Perl 6 Implementation (bsd3, language, program, pugs)AudreyTang, JeffShaw
QIO100.0The Quantum IO Monad is a library for defining quantum computations in Haskell (bsd3, library, quantum)AlexanderGreen
QuadEdge30.0QuadEdge structure for representing triangulations (bsd3, data, library)NealAlexander
QuadTree40.0QuadTree library for Haskell, with lens support. (bsd3, data, game, library)Kron
QuasiText110.0A QuasiQuoter for Text. (bsd3, library, text)MikeLedger
Quelea12.0Programming with Eventual Consistency over Cassandra. (bsd3, experimental, library)gowtham
QuickAnnotate80.0Annotation Framework (bsd3, development, library, program)ShayanNajd
QuickCheck31382.5Automatic testing of Haskell programs (bsd3, library, testing)DonaldStewart, KoenClaessen, NickSmallbone, SimonMarlow
Quickson (deprecated in favor of aeson-quick)70.0Quick JSON extractions with Aeson (bsd3, deprecated, json, library, text, web)ssadler
R-pandoc50.0A pandoc filter to express R plots inside markdown (bsd3, library, program, text)CorentinDupont
RANSAC50.0The RANSAC algorithm for parameter estimation. (bsd3, library, math, numerical)AnthonyCowley
RBTree150.0Pure haskell Red-Black-Tree implemetation (bsd3, data-structures, library)XingboWu
RJson220.0A reflective JSON serializer/parser. (bsd3, library, text)AlexDrummond
RMP30.0Binding to code that controls a Segway RMP (bsd3, library, program, robotics, system)NoamLewis
RSA1210.0Implementation of RSA, using the padding schemes of PKCS#1 v2.1. (bsd3, codec, cryptography, library)AdamWick
Raincat140.0A puzzle game written in Haskell with a cat in lead role (bsd3, game, program)MikhailPobolovets, SergeiTrofimovich
Range10.0Data structure for managing ranges (bsd3, data, library)ThomasEding
Ranged-sets222.0Ranged sets for Haskell (bsd3, data, library)PaulJohnson
Rasenschach90.0Soccer simulation (bsd3, game, program)MartinWoehrle
Rasterific342.0A pure haskell drawing engine. (bsd3, graphics, library)VincentBerthoux
ReadArgs310.0Simple command line argument parsing (bsd3, command-line, library, program)NoahEasterly
Ref30.0Generic Mutable Ref Abstraction Layer (bsd3, data, library)CarterSchonwald
RefSerialize310.0Write to and read from ByteStrings maintaining internal memory references (bsd3, data, database, library, parsing)AlbertoCorona
RepLib282.0Generic programming library with representation types (bsd3, generics, library)BrentYorgey, ChrisCasinghino, sweirich
ReplicateEffects60.0Composable replication schemes of applicative functors (bsd3, control, library)MartijnVanSteenbergen
ReviewBoard90.0Haskell bindings to ReviewBoard (bsd3, development, library, program)AdamSmyczek
Rlang-QQ (deprecated in favor of inline-r)160.0quasiquoter for inline-R code (bsd3, deprecated, development, library)AdamVogt
RoyalMonad50.0All hail the Royal Monad! (bsd3, control, library)AtzeVanDerPloeg
SBench50.0A benchmark suite for runtime and heap measurements over a series of inputs. (bsd3, library, testing)DanielSeidel
SDL761.5Binding to libSDL (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-gfx170.0Binding to libSDL_gfx (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-image150.0Binding to libSDL_image (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-mixer200.0Binding to libSDL_mixer (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SDL-mpeg30.0Binding to the SMPEG library (bsd3, foreign-binding, library)AudreyTang
SDL-ttf210.0Binding to libSDL_ttf (bsd3, foreign-binding, library)ChrisDone, DavidHimmelstrup, fffaaa
SFont (deprecated)40.0SFont SDL Bitmap Fonts (bsd3, deprecated, graphics, library)LiamOConnorDavis
SG30.0Small geometry library for dealing with vectors and collision detection (bsd3, data, library, math)NeilBrown
SGplus30.0(updated) Small geometry library for dealing with vectors and collision detection (bsd3, data, library, math)donomii
SHA9180.0Implementations of the SHA suite of message digest functions (bsd3, codec, cryptography, library)AdamWick, RaphaelJavaux
SHA2210.0Fast, incremental SHA hashing for bytestrings (bsd3, cryptography, library)SveinOveAas
SMTPClient200.0A simple SMTP client library (bsd3, library, network)StephenBlackheath
SQLDeps20.0Calculate db-data dependencies of functions (bsd3, database, library)AlexanderThiemann
SSTG612.0STG Symbolic Execution (bsd3, library, program, web)AntonXue
STL130.0STL 3D geometry format parsing and pretty-printing (bsd3, graphics, library)bergey
STMonadTrans1530.0A monad transformer version of the ST monad (bsd3, library, monads)JosefSvenningsson
SVG2Q30.0Code generation tool for Quartz code from a SVG. (bsd3, parsing, program)JanGreve
SVGFonts3750.0Fonts from the SVG-Font format (bsd3, graphics, library)BrentYorgey, JanBracker, RyanYates, TillmannVogt, jeffreyrosenbluth, bergey
SVGPath130.0Parsing the path command of SVG (bsd3, graphics, library)RohanDrape, TillmannVogt
SableCC2Hs40.0Generate a parser (in Haskell) with the SableCC parser generator. (bsd3, library, parsing, program)MarcFontaine
Safe (deprecated in favor of safe)50.0Library for safe (pattern match free) functions (bsd3, deprecated, library, unclassified)
SafeSemaphore1560.0Much safer replacement for QSemN, QSem, and SampleVar (bsd3, concurrency, library)ChrisKuklewicz
Salsa60.0A .NET Bridge for Haskell (.net, bsd3, foreign, library)AndrewAppleyard, TimMatthews
Saturnin50.0Saturnin CI / Job System (application-server, bsd3, library, program)yac
Scurry60.0A 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
Semigroup170.0A semigroup (bsd3, data, library)TonyMorris
SeqAlign (deprecated in favor of seqalign)20.0Sequence Alignment (bsd3, deprecated, library, unclassified)rcallahan
Shellac130.0A framework for creating shell envinronments (bsd3, library, user-interfaces)RobertDockins
Shellac-compatline60.0"compatline" backend module for Shellac (bsd3, library, user-interfaces)RobertDockins
Shellac-editline60.0Editline backend module for Shellac (bsd3, library, user-interfaces)RobertDockins
Shellac-haskeline100.0Haskeline backend module for Shellac (bsd3, library, user-interfaces)JudahJacobson, RobertDockins
Shellac-readline60.0Readline backend module for Shellac (bsd3, library, user-interfaces)RobertDockins
ShortestPathProblems40.0grammars for TSP and SHP (bsd3, data, library)ChristianHoener
ShowF30.0Show for * -> * (bsd3, library, text)ConalElliott
Shrub20.04-way trie fuzzy search (bsd3, library, unclassified)rcallahan
Shu-thing120.0A vector shooter game (bsd3, game, program)AlanHawkins, GwernBranwen
SimpleAES130.0Fast AES encryption/decryption for bytestrings (bsd3, cryptography, library)DavidHimmelstrup
SimpleEA70.0Simple evolutionary algorithm framework. (ai, bsd3, library)ErlendHamberg
SimpleGL (deprecated in favor of definitive-graphics)50.0A Simple Graphics Library from the SimpleH framework. (bsd3, deprecated, graphics, library)MarcCoiffier
SimpleLog40.0Simple, configurable logging (bsd3, library, system)AndrasSlemmer
Smooth20.0A tiny, lazy SMT solver (bsd3, library, math)dillonhuff
Snusmumrik (deprecated)30.0E-library directory based on FUSE virtual file system. (bsd3, deprecated, program, text)SergeyAstanin
SoOSiM40.0Abstract full system simulator (bsd3, library, simulation)ChristiaanBaaij
SoccerFun440.0Football simulation framework for teaching functional programming (ai, bsd3, education, game, library, program)JanRochel
SoccerFunGL140.0OpenGL UI for the SoccerFun framework (ai, bsd3, education, game, library, program)JanRochel
SpaceInvaders60.0Video game (bsd3, game, program)GeorgeGiorgidze, IvanPerez, keera_studios_ci
SpacePrivateers20.0Simple space pirate roguelike (bsd3, game, program)tuturto
SpinCounter20.0Lock free Spin Counter (bsd3, data, library)julek
Spintax130.0Random text generation based on spintax (bsd3, library, text)MichelBoucey
Spock752.5Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-api60.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-api-ghcjs30.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-api-server50.0Another 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-core150.0Another Haskell web framework for rapid development (bsd3, library, web)AlexanderThiemann
Spock-lucid170.0Lucid support for Spock (bsd3, library, web)Artyom
SpreadsheetML30.0Write support for Excel's SpreadsheetML format (bsd3, library, text)JasonDagit
Sprig (deprecated)50.0Binding to Sprig (bsd3, deprecated, foreign-binding, library)LiamOConnorDavis
Stack122.25Stack data structure (bsd3, data-structures, library)rwlock
Stasis10.0A simple MVCC like library (bsd3, concurrency, library, program)zcourts
StateVar13280.0State variables (bsd3, data, library)EdwardKmett, SvenPanne
StateVar-transformer20.0State variables (bsd3, data, library)seagull
Stomp40.0Client library for Stomp brokers. (bsd3, library, network)VitaliyRukavishnikov
Strafunski-ATermLib40.0An abstract data type designed for the exchange of tree-like data structures (bsd3, data, library)JamesKoppel
Strafunski-Sdf2Haskell20.0Converts SDF to Haskell (bsd3, language, program)JamesKoppel
Strafunski-StrategyLib170.0Library for strategic programming (bsd3, generics, library)AlanZimmerman, JamesKoppel
StrappedTemplates50.0General purpose templates in haskell (bsd3, library, text)hansonkd
Stream950.0A library for manipulating infinite lists. (bsd3, data, library)WouterSwierstra
SuffixStructures20.0Suffix array construction (benchmark, bsd3, data, data-structures, library, program)ChristianHoener
Sysmon80.0Sybase 15 sysmon reports processor (bsd3, database, library)VitaliyRukavishnikov
TBC60.0Testing By Convention (bsd3, library, program, testing)PeterGammie
TBit40.0Utilities for condensed matter physics tight binding calculations. (bsd3, library, science)danielsmw
TCache580.0A Transactional cache with user-defined persistence (bsd3, data, database, library)AlbertoCorona
THEff80.0TH implementation of effects. (bsd3, control, effect, library, th)kolodeznydiver
TV280.0Tangible Values -- composable interfaces (bsd3, interfaces, library)ConalElliott
TYB40.0Template Your Boilerplate - a Template Haskell version of SYB (bsd3, generics, library)MichaelAdams, ThomasDuBuisson
TableAlgebra70.0Ferry Table Algebra (bsd3, database, library)JeroenWeijers
Tables60.0A client for Quill databases (bsd3, database, program)NatePisarski
Tablify80.0Tool to render CSV into tables of various formats (bsd3, program, text)DanielLyons
Tahin20.0Tahin Password Generator (bsd3, library, password, program)mtesseract
Tainted60.0Tainted type, and associated operations (bsd3, control, data, library, monads, trans)RossMeikleham
Takusen222.0Database 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
TeaHS (deprecated)40.0TeaHS Game Creation Library (bsd3, deprecated, game, library)LiamOConnorDavis
Tensor140.0Tensor data types (bsd3, data, library)SvenPanne
TernaryTrees360.0Efficient pure ternary tree Sets and Maps (bsd3, data-structures, library, program)AlexMason
Thingie (deprecated in favor of Hieroglyph)80.0Purely functional 2D drawing (bsd3, deprecated, graphics, library)JeffersonHeard
TicTacToe40.0A sub-project (exercise) for a functional programming course (bsd3, education, library)TonyMorris
TinyLaunchbury70.0Simple implementation of call-by-need using Launchbury's semantics (bsd3, compilers-interpreters, library)DavidSankel
TinyURL50.0Use TinyURL to compress URLs (bsd3, library, web)ReidBarton
TraceUtils80.0Functions 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
TransformersStepByStep50.0Tutorial on monad transformers. (bsd3, development, program)MartinGrabmueller
Transhare40.0A library to apply transformation to containers so as to maximize sharing of unchanged subcomponents. (bsd3, data, library)ChrisKuklewicz
TreeCounter30.0Wait-free Tree Counter (bsd3, data, library)julek
TreeStructures70.0A collection of heaps and search trees (bsd3, data-structures, library)BrendanHickey
Treiber40.0Lock free Treiber stack (bsd3, data, library)julek
TrieMap550.0Automatic type inference of generalized tries with Template Haskell. (algorithms, bsd3, library)LouisWasserman
Twofish120.0An implementation of the Twofish Symmetric-key cipher. (bsd3, codec, cryptography, library)RonLeisti
TypeClass80.0Typing speed game (bsd3, game, program)JeanPhilippeMoresmau
TypeCompose760.0Type composition classes & instances (bsd3, composition, control, library)ConalElliott
TypeIlluminator20.0TypeIlluminator is a prototype tool exploring debugging of type errors/ (bsd3, compilers-interpreters, program)GwernBranwen
UISF120.0Library for Arrowized Graphical User Interfaces. (bsd3, gui, library)dwincort
URLT (deprecated in favor of web-routes)50.0Library for maintaining correctness of URLs within an application. (bsd3, deprecated, language, library, web)JeremyShaw
URLb40.0DEPRECATED A simple, liberal URL parser. (bsd3, library, text)JasonDusek
Unique832.0It provides the functionality like unix "uniq" utility (bsd3, data, library)kapral
Unixutils530.0A crude interface between Haskell and Unix-like operating systems (bsd3, library, system)DavidFox, JeremyShaw
Unixutils-shadow40.0A simple interface to shadow passwords (aka, shadow.h) (bsd3, library, system)JeremyShaw
UrlDisp50.0Url dispatcher. Helps to retain friendly URLs in web applications. (bsd3, library, network, web)ArtyomShalkhakov
Useful130.0Some useful functions and shorthands. (bsd3, library, unclassified)DanielHolden
UtilityTM100.0Utility functions that are missing from the standard library (bsd3, development, library)TonyMorris
VKHS550.0Provides access to Vkontakte social network via public API (bsd3, library, program, web)SergeyMironov
Validation (deprecated in favor of validation)60.0A data-type like Either but with an accumulating Applicative (bsd3, data, deprecated, library)TonyMorris
Vec240.0Fixed-length lists and low-dimensional linear algebra. (bsd3, data, library, math)ScottDillard
Vec-Boolean110.0Provides 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-Transform150.0This package is obsolete (bsd3, graphics, library, math)TobiasBexelius
VecN40.0a simple peano-indexed vector type (bsd3, data, library)AndrasSlemmer
Villefort1702.0Villefort is a task manager and time tracker written in haskell. (bsd3, library, program, web)ChrisReuter
Vulkan60.0A binding for the Vulkan API (bsd3, graphics, library)SvenPanne
WAVE150.0WAVE audio file IO library (bsd3, data, library, program, sound)BartonMassey
WL500gPControl60.0A simple command line tools to control the Asus WL500gP router (bsd3, network, program, ui)VasylPasternak
WL500gPLib20.0A simple library to access to the WL 500gP router from the Haskell code (bsd3, library, network, program)VasylPasternak
WURFL (deprecated)20.0Convert the WURFL file into a Parsec parser (bsd3, deprecated, library, web)alpheccar
WXDiffCtrl20.0WXDiffCtrl (bsd3, gui, library, user-interfaces)JeremyODonoghue
WashNGo50.0WASH is a family of EDSLs for programming Web applications in Haskell. (bsd3, library, program, web)MarcWeber
Weather70.0Library 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
WebCont40.0Continuation based web programming for Happstack (bsd3, library, web)SamAnklesaria
WeberLogic30.0Logic interpreter (bsd3, library, math, program)cameronbwhite
Webrexp60.0Regexp-like engine to scrap web data (bsd3, library, program, utility)VincentBerthoux
Wheb70.0The frictionless WAI Framework (bsd3, library, web)hansonkd
WikimediaParser40.0A parser for wikimedia style article markup. (bsd3, library, parsing)EzekielSmithburg
Win321052.0A 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-server60.0Win32 DHCP Server Management API (bsd3, library, system)MichaelSteele
Win32-errors70.0Alternative error handling for Win32 foreign calls (bsd3, library, system)MichaelSteele
Win32-extras100.0Provides missing Win32 API (bsd3, graphics, library, system)KidoTakahiro
Win32-junction-point70.0Support for manipulating NTFS junction points. (bsd3, library, system)MichaelSteele
Win32-notify790.0A binding to part of the Win32 library for file notification (bsd3, library, system)GregWeber, MarkDittmer, NiklasBroberg, PepeIborra
Win32-services150.0Windows service applications (bsd3, library, system)MichaelSteele
Win32-services-wrapper50.0Wrapper code for making a Win32 service (bsd3, library, system)GaneshSittampalam
Win32-shortcut30.0Support for manipulating shortcuts (.lnk files) on Windows (bsd3, library, system)lato
Wired140.0Wire-aware hardware description (bsd3, hardware, language, library)EmilAxelsson
WordNet80.0Haskell interface to the WordNet database (bsd3, library, natural-language-processing, text)JoelTaylor, MaxRabkin
WordNet-ghc7430.0Haskell interface to the WordNet database (bsd3, library, natural-language-processing, text)JoelTaylor
Workflow410.0Workflow patterns over a monad for thread state logging & recovery (bsd3, control, library, workflow)AlbertoCorona
X111632.0A binding to the X11 graphics library (bsd3, graphics, library)DanielWagner, DonaldStewart, PeterJones, SpencerJanssen
X11-extras170.0Missing bindings to the X11 graphics library (bsd3, graphics, library)DonaldStewart, SpencerJanssen
X11-rm60.0A binding to the resource management functions missing from X11. (bsd3, graphics, library)TroelsHenriksen
X11-xdamage70.0A binding to the Xdamage X11 extension library (bsd3, graphics, library)DonaldStewart, EwanHiggs
X11-xshape60.0A binding to the Xshape X11 extension library (bsd3, graphics, library)DonaldStewart, EwanHiggs
XInput50.0Bindings for the DirectX XInput library. (bsd3, library, system)ErikCharlebois
XMPP120.0XMPP library (bsd3, library, network)GregoriKholomyev, OlegIvanov
XSaiga112.0An implementation of a polynomial-time top-down parser suitable for NLP (attribute-grammars, bsd3, library, memoization, natural-language-processing, parsercombinators, parsing, program, text)InBetweenNames
Xauth90.0A binding to the X11 authentication library (bsd3, graphics, library)SpencerJanssen
Xec10.0Gtk command launcher with identicon (bsd3, program, utils)DaikiHanda
XmlHtmlWriter20.0A library for writing XML and HTML (bsd3, language, library)MatthewMirman
YFrob30.0Yampa-based library for programming robots (bsd3, frp, library, reactivity, yampa)TristanSkudlik
Yablog70.0A simple blog engine powered by Yesod. (bsd3, web)HiromiIshii
Yampa602.5Library for programming hybrid systems. (bsd3, frp, library, reactivity)GeorgeGiorgidze, IvanPerez, keera_studios_ci
Yampa-core30.0Library for programming hybrid systems. (bsd3, frp, library, reactivity)NikolayOrlyuk
YampaSynth150.0Software synthesizer (bsd3, music, sound)GeorgeGiorgidze, IvanPerez, keera_studios_ci
Yogurt120.0A MUD client library (bsd3, library, network)MartijnVanSteenbergen
Yogurt-Standalone20.0A functional MUD client (bsd3, network, program)MartijnVanSteenbergen
ZEBEDDE (deprecated)10.0Polymer growth simulation method (bsd3, deprecated, library, math)hackrilege
ZMachine40.0A Z-machine interpreter (bsd3, game, program)GwernBranwen
ZipFold90.0Zipping folds (bsd3, data, library)ConalElliott
ZipperAG120.0An implementationg of Attribute Grammars using Functional Zippers (bsd3, experimental, library)prmartins
Zora180.0Graphing library wrapper + assorted useful functions (bsd3, library, unclassified)bgwines
Zwaluw30.0Combinators for bidirectional URL routing (bsd3, library, text)MartijnVanSteenbergen
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
abcnotation170.0Haskell representation and parser for ABC notation. (bsd3, library, music)HansHoglund
abstract-deque5040.0Abstract, 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-par5020.0Type classes generalizing the functionality of the 'monad-par' library. (bsd3, control, library, monads, parallelism)RyanNewton
abstract-par-accelerate40.0Provides the class ParAccelerate, nothing more. (bsd3, library, parallelism)RyanNewton
ac-machine60.0Aho-Corasick string matching algorithm in Haskell (bsd3, data, library)YutaTaniguchi
ac-machine-conduit10.0Drive Aho-Corasick machines in Conduit pipelines (bsd3, data, library)YutaTaniguchi
accelerate862.0An embedded language for accelerated array processing (bsd3, compilers-interpreters, concurrency, data, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-arithmetic50.0Linear algebra and interpolation using the Accelerate framework (bsd3, library, math)HenningThielemann
accelerate-bignum40.0Fixed-length large integer arithmetic for Accelerate (benchmark, bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-blas420.0Numeric Linear Algebra in Accelerate (bsd3, library, math)
accelerate-cublas40.0Basic Linear Algebra using native CUBLAS library (benchmark, bsd3, library, math, program)HenningThielemann
accelerate-cuda (deprecated in favor of accelerate-llvm-ptx)250.0Accelerate 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-examples410.0Examples using the Accelerate library (bsd3, compilers-interpreters, concurrency, data, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-fft360.0FFT 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-fourier40.0Fast Fourier transform and convolution using the Accelerate framework (benchmark, bsd3, library, math)HenningThielemann
accelerate-fourier-benchmark50.0Compare different implementations of the Fast Fourier Transform (bsd3, math, program)HenningThielemann
accelerate-io210.0Read and write Accelerate arrays in various formats (bsd3, compilers-interpreters, concurrency, data, library, parallelism)ManuelChakravarty, TrevorMcDonell
accelerate-llvm320.0Accelerate backend component generating LLVM IR (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-llvm-native330.0Accelerate backend for multicore CPUs (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-llvm-ptx320.0Accelerate backend for NVIDIA GPUs (bsd3, compilers-interpreters, concurrency, data, library, parallelism)TrevorMcDonell
accelerate-random (deprecated in favor of mwc-random-accelerate)10.0Generate Accelerate arrays filled with high quality pseudorandom numbers (bsd3, data, deprecated, library)TrevorMcDonell
accelerate-utility50.0Utility functions for the Accelerate framework (bsd3, library, parallelism)HenningThielemann
accentuateus100.0A Haskell implementation of the Accentuate.us API. (bsd3, library, web)MichaelSchade
access-time70.0Cross-platform support for retrieving file access times (bsd3, library, system)MaxBolingbroke
accuerr60.0Data type like Either but with accumulating error type (bsd3, development, library)OmariNorman
ace140.0Attempto Controlled English parser and printer (bsd3, library, linguistics)ChrisDone
acl230.0Writing and calling ACL2 from Haskell. (bsd3, formal-methods, language, library)TomHawkins
acme-box40.0A full featured empty project (acme, bsd3, library, program)twebb
acme-cofunctor82.0A Cofunctor is a structure from category theory dual to Functor (acme, bsd3, library)JasperVanDerJeugt
acme-colosson60.0Determines whether it is numberwang. (acme, bsd3, library)KeeganMcAllister
acme-comonad10.0A more efficient dualization (bsd3, library, ntrol)JoeQuinn
acme-dont80.0A don't construct (acme, bsd3, library)GracjanPolak
acme-flipping-tables10.0Stop execution with rage. (acme, bsd3, library)JacobStanley
acme-functors50.0The best applicative functors. (acme, bsd3, library)chris_martin
acme-grawlix50.0More readable names for commonly used symbols (acme, bsd3, library)kadoban
acme-http90.0fastest Haskell PONG server in the world (bsd3, library, program, web)JeremyShaw
acme-kitchen-sink50.0A place for dumping that does-not-feel-right code while you improve it (bsd3, library, other)marcosdumay
acme-lolcat50.0LOLSPEAK translator (acme, bsd3, library)AntonNikishaev
acme-lookofdisapproval50.0Express your disapproval (acme, bsd3, library)AntonNikishaev
acme-microwave50.0The eighth wonder of the world, kitchen math! (acme, bsd3, library)JoeQuinn
acme-numbersystem30.0Define the less than and add and subtract for nats (acme, bsd3, library)MaxwellSwadling
acme-omitted70.0A name for omitted definitions (acme, bsd3, library)JoachimFasting
acme-operators22.25Operators of base, all in one place! (bsd3, documentation, library)phadej
acme-php70.0The flexibility of Haskell and the safety of PHP (acme, bsd3, library)JoeQuinn
acme-pointful-numbers50.0Make more than one point in numeric literals (acme, bsd3, library)AntonNikishaev
acme-realworld50.0Primitives for manipulating the state of the universe (acme, bsd3, library)JoeyAdams
acme-schoenfinkel42.0Proper names for curry and uncurry (acme, bsd3, library)ErtugrulSoeylemez, esz
acme-smuggler50.0Smuggle arbitrary values in () (acme, bsd3, library)benc
acme-strfry30.0A binding to the glibc strfry function. (acme, bsd3, library)ElliottHird
acme-stringly-typed40.0Stringly Typed Programming (acme, bsd3, library)SvenStruett
acme-timemachine60.0An easy way to perform and unperform IO and other stateful actions. (acme, bsd3, library)mniip
action-permutations100.0Execute a set of actions (e.g. parsers) in each possible order (bsd3, control, library)RossPaterson
active4030.0Abstractions for animation (bsd3, data, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
activehs230.0Haskell code presentation tool (bsd3, documentation, education, program)PeterDivianszky, lspitzner, GaborPali, gombocarti
activehs-base180.0Basic definitions for activehs (bsd3, documentation, education, library)PeterDivianszky, lspitzner, GaborPali, gombocarti
activitystreams-aeson30.0An interface to the ActivityStreams specification (bsd3, codec, library)gdritter
actor50.0Actors with multi-headed receive clauses (bsd3, concurrency, library)MartinSulzmann
ad1572.5Automatic Differentiation (benchmark, bsd3, library, math)EdwardKmett, EricMertens, ryanglscott
adaptive-containers100.0Self optimizing container types (bsd3, data, library)DonaldStewart
adaptive-tuple80.0Self-optimizing tuple types (bsd3, data, library)JohnLato
adb20.0Android Debug Bridge (ADB) protocol (bsd3, library, network)StephenBlackheath
addLicenseInfo60.0Adds license info to the top of a file. (bsd3, development, program)JoeFredette
adict60.0Approximate dictionary searching (bsd3, library, natural-language-processing)JakubWaszczuk
adjunctions9502.25Adjunctions and representable functors (adjunctions, bsd3, data-structures, library)EdwardKmett
adler3260.0An implementation of Adler-32, supporting rolling checksum operation (bsd3, cryptography, hash, library)MariosTitas
adobe-swatch-exchange40.0parse Adobe Swatch Exchange files and (optionally) output .css files with the colors (bsd3, library, program, web)JeremyShaw
adp-multi60.0ADP 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-mp310.0Multi-precision floats via MPFR (bsd3, library, math)
aern2-real290.0Exact real numbers via Cauchy sequences and MPFR (bsd3, library, math, program)
aeson37522.75Fast JSON parsing and encoding (bsd3, json, library, text, web)AdamBergmark, BasVanDijk, BryanOSullivan, HerbertValerioRiedel
aeson-coerce50.0Initial project template from stack (bsd3, library, web)angerman
aeson-compat1310.0Compatibility layer for aeson (bsd3, library, web)phadej
aeson-diff460.0Extract and apply patches to JSON documents. (algorithms, bsd3, json, library, program, web)ThomasSutton
aeson-extra210.0Extra goodies for aeson (bsd3, library, web)phadej
aeson-filthy50.0Several newtypes and combinators for dealing with less-than-cleanly JSON input. (bsd3, json, library, text, web)AlecHeller
aeson-flat70.0Tools for creating flat JSON serializations (bsd3, library, web)seanhess
aeson-flatten80.0JSON flatten for Aeson (bsd3, json, library, text, web)JiriMarsicek
aeson-flowtyped300.0Create Flow type definitions from Haskell data types. (bsd3, library, web)MikeLedger
aeson-generic-compat40.0Compatible generic class names of Aeson (bsd3, library, text)KeiHibino
aeson-iproute60.0Aeson instances for iproute types (bsd3, data, library)sickmind
aeson-lens340.0Lens of Aeson (bsd3, data, json, lenses, library)HideyukiTanaka
aeson-native (deprecated in favor of aeson)60.0Fast JSON parsing and encoding (deprecated) (bsd3, deprecated, json, library, text, web)MichaelSnoyman
aeson-parsec-picky50.0Alternative JSON parser based on Parsec and Aeson (bsd3, json, library, text)MatejKollar
aeson-prefix70.0Hiearchical prefixing for aeson (bsd3, json, library, text, web)JiriMarsicek
aeson-pretty6960.0JSON pretty-printing library and command-line tool. (bsd3, json, library, pretty-printer, text, web)FalkoPeters
aeson-quick60.0Quick JSON extractions with Aeson (benchmark, bsd3, json, library, text, web)ssadler
aeson-serialize30.0Simple serialization functions for aeson types (bsd3, library, unclassified)KevinCotrone
aeson-streams20.0An HTTP client library for JSON-based APIs (bsd3, library, web)VoMinhThu
aeson-utils190.0Utilities for working with Aeson. (bsd3, data, library)AdamBergmark, ErikHesselink
affine-invariant-ensemble-mcmc (deprecated in favor of flat-mcmc)20.0General-purpose sampling (bsd3, deprecated, library, machine-learning, numerical, statistics)JaredTobin
afis60.0Anti-forensic Information Splitter (bsd3, cryptography, data, library)VincentHanquez
afv140.0Infinite state model checking of iterative C programs. (bsd3, formal-methods, program)TomHawkins
ag-pictgen30.0Attribute Grammar picture generation (bsd3, development, program)AtzeDijkstra
agda-server50.0Http server for Agda (prototype) (bsd3, dependent-types, program)PeterDivianszky
agda-snippets60.0Render just the Agda snippets of a literate Agda file to HTML (bsd3, dependent-types, library, program)LiamOConnorDavis
agda-snippets-hakyll90.0Literate Agda support using agda-snippets, for Hakyll pages. (bsd3, dependent-types, library)LiamOConnorDavis
agentx90.0AgentX protocol for write SNMP subagents (bsd3, library, network)chemist
aig110.0And-inverter graphs in Haskell. (bsd3, data, library)AaronTomb, RobertDockins
aip90.0Aeronautical Information Package (AIP) (aviation, bsd3, data, library, program)qfpl
air190.0air (bsd3, development, library)JinjingWang
air-extra120.0air-extra (bsd3, development, library)JinjingWang
air-spec30.0air spec helper (bsd3, development, library)JinjingWang
air-th30.0air (bsd3, development, library)JinjingWang
airbrake40.0An Airbrake notifier for Haskell (bsd3, library, network)JoelTaylor
airtable-api250.0Requesting and introspecting Tables within an Airtable project. (bsd3, library, web)ooblahman
aivika550.0A multi-method simulation library (bsd3, library, simulation)DavidSorokin
aivika-branches120.0Nested discrete event simulation module for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-distributed680.0Parallel distributed discrete event simulation module for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-experiment270.0Simulation experiments for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-experiment-cairo130.0Cairo-based charting backend for the Aivika simulation library (bsd3, library, simulation)DavidSorokin
aivika-experiment-chart270.0Simulation experiments with charting for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-experiment-diagrams110.0Diagrams-based charting backend for the Aivika simulation library (bsd3, library, simulation)DavidSorokin
aivika-gpss60.0GPSS-like DSL for Aivika (bsd3, library, simulation)DavidSorokin
aivika-lattice80.0Nested discrete event simulation module for the Aivika library using lattice (bsd3, library, simulation)DavidSorokin
aivika-realtime90.0Soft real-time simulation module for the Aivika library (bsd3, library, simulation)DavidSorokin
aivika-transformers220.0Transformers for the Aivika simulation library (bsd3, library, simulation)DavidSorokin
al190.0OpenAL 1.1 raw API. (bsd3, library, sound)DimitriSabadie
alarmclock300.0Wake up and perform an action at a certain time. (bsd3, concurrency, library)dcturner
alerta140.0Bindings to the alerta REST API (api, bsd3, library, monitoring, web)MarkHopkins
alerts170.0Alert messages for web applications (bsd3, library, web)alx741, DanielCampoverde
alex4420.0Alex is a tool for generating lexical analysers in Haskell (bsd3, development, program)SimonMarlow
alex-meta180.0Quasi-quoter for Alex lexers (bsd3, development, library)JonasDuregard
alex-prelude420.0Collection of useful functions for writing console applications (bsd3, library, system)
alfred100.0utility library for Alfred version 2 (bsd3, library, utils)PatrickBahr
algebra620.0Constructive abstract algebra (algebra, bsd3, library, math)EdwardKmett, HiromiIshii, WolfgangJeltsch
algebra-dag40.0Infrastructure for DAG-shaped relational algebra plans (bsd3, database, library)AlexUlrich2
algebra-sql40.0Relational Algebra and SQL Code Generation (bsd3, database, library, program)AlexUlrich2
algebraic40.0General linear algebra structures. (algebra, bsd3, library, math)danilo2, Korri, MarcinMikolajczyk
algebraic-classes210.0Conversions between algebraic classes and F-algebras. (bsd3, data, generics, library, math)SjoerdVisscher
algebraic-prelude82.0Algebraically structured Prelude (bsd3, library, web)HiromiIshii
align60.0Sequence alignment algorithms. (bsd3, data, library)literon
allocated-processor60.0Functional combinators for monadic actions that require allocation and de-allocation (bsd3, control, library)NoamLewis
alloy90.0Generic programming library (bsd3, generics, library)MattGlazar, NeilBrown
alloy-proxy-fd40.0Some add-on instances for the Alloy library (bsd3, generics, library)NeilBrown
almost-fix50.0Recurse while a predicate is satisfied (bsd3, library, unclassified)athanclark
alms270.0a practical affine language (bsd3, compilers-interpreters, program)JesseTov
alpha330.0A compiler for the Alpha language (bsd3, compiler, program)MarcCoiffier
alphachar30.0A character between a-z (bsd3, library, prelude)TonyMorris
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-core360.0Binding 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-mixer330.0Bindings to the ALSA simple mixer API. (bsd3, library, sound)ThomasTuegel
alsa-pcm120.0Binding to the ALSA Library API (PCM audio). (bsd3, library, music, sound)HenningThielemann
alsa-pcm-tests (deprecated in favor of alsa-pcm)30.0Tests for the ALSA audio signal library. (bsd3, deprecated, music, program, sound)HenningThielemann
alsa-seq170.0Binding to the ALSA Library API (MIDI sequencer). (bsd3, library, music, sound)HenningThielemann
alsa-seq-tests (deprecated in favor of alsa-seq)20.0Tests for the ALSA sequencer library. (bsd3, deprecated, music, program, sound)HenningThielemann
altcomposition70.0Alternative combinators for unorthodox function composition (bsd3, data, library)jcristovao
alternative-extra40.0Extra utilities for alternatives (bsd3, control, library)marcosdumay
alternative-io (deprecated in favor of io-choice)20.0IO as Alternative instance (deprecated) (bsd3, data, deprecated, library)KazuYamamoto
alternators50.0Handy functions when using transformers (bsd3, control, library)louispan
amazon-emailer (deprecated in favor of hworker-ses)30.0A 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)60.0Client library for amazon-emailer daemon (bsd3, deprecated, library, network)DanielPatterson
amazonka-s3-streaming230.0Provides conduits to upload data to S3 using the Multipart API (aws, bsd3, cloud, distributed-computing, library, network, program)AlexMason
amby40.0Statistical data visualization (benchmark, bsd3, graphics, library)jsermeno
amqp1202.25Client library for AMQP servers (currently only RabbitMQ) (bsd3, library, network, program)HolgerReinhardt
amqp-worker100.0High level functions for working with message queues (bsd3, library, program, web)seanhess
analyze60.0making data science easy and safe with data frames (bsd3, data-science, library)NickSeagull, ejconlon
analyze-client60.0Client for analyze service (bsd3, library, web)DanielPatterson
anatomy40.0Anatomy: Atomo documentation system (bsd3, development, library, program)AlexSuraci
angel320.0Process management and supervision daemon (bsd3, program, system)JamieTurner, MichaelXavier
animate50.0Animation for sprites (bsd3, game, library)jxv
anki-tools30.0Tools for interacting with Anki database (bsd3, database, library, program)zohl
annah10.0Medium-level language that desugars to Morte (bsd3, compiler, library, program)GabrielGonzalez
annihilator (deprecated in favor of boolean-like)50.0Semigroups with annihilators and utility functions (bsd3, control, deprecated, library)Shou
annotated-wl-pprint1350.0The Wadler/Leijen Pretty Printer, with annotation support (bsd3, library, text)dchristiansen
anonymous-sums90.0Anonymous sum types (bsd3, data, library)OmariNorman
anonymous-sums-tests20.0QuickCheck functions to accompany the anonymous-sums package (bsd3, data, library)OmariNorman
ansi-pretty70.0AnsiPretty for ansi-wl-pprint (bsd3, library, text, user-interfaces)phadej
ansi-terminal33042.25Simple ANSI terminal support, with Windows compatibility (bsd3, library, user-interfaces)MaxBolingbroke, OliverCharles, RomanCheplyaka
ansi-wl-pprint18512.5The Wadler/Leijen Pretty Printer for colored ANSI terminal output (bsd3, library, text, user-interfaces)EdwardKmett, MaxBolingbroke, quchen
antfarm10.0Referring expressions for definitions (bsd3, library, natural-language-processing, program)EricKow
antiprimes60.0Initial project template from stack (bsd3, learning-haskell, library)wokibe
antiquoter40.0Combinator library for quasi- and anti-quoting. (bsd3, library, template-haskell)LarsCorbijn
antlrc40.0Haskell binding to the ANTLR parser generator C runtime library. (bsd3, library, parsing, program)MarkWright
aosd130.0Bindings to libaosd, a library for Cairo-based on-screen displays (bsd3, graphics, library)DanielSchuessler
ap-reflect70.0Partial evaluation reflection a la simple-reflect. (bsd3, debug, library)NickolayKudasov
apache-md592.0Apache specific MD5 digest algorighm. (benchmark, bsd3, cryptography, data, library)PeterTrsko
apecs1500.0A fast ECS for game engine programming (bsd3, control, data, game, library)
api-builder220.0Library for easily building REST API wrappers in Haskell (bsd3, library, network)Intolerable
api-field-json-th80.0option of aeson's deriveJSON (bsd3, library, utils)nakaji_dayo
api-tools90.0DSL for generating API boilerplate and docs (bsd3, cloud, distributed-computing, library, network, program, web)AdamGundry, ChrisDornan
apioiaf-client102.0Consumer library for anapioficeandfire.com (bsd3, library, web)krberger
apns-http260.0Apple Push Notification service HTTP/2 integration. (bsd3, library, network, program)dridus
app-lens50.0applicative (functional) bidirectional programming beyond composition chains (benchmark, bsd3, data, lenses, library)kztk
app-settings220.0A library to manage application settings (INI file-like) (bsd3, configuration, library)EmmanuelTouzery
appar6780.0A simple applicative parser (bsd3, library, parsing)KazuYamamoto
applicative-extras210.0Instances for Applicative (bsd3, control, library)ChrisEidhof
applicative-fail70.0Applicative functor and monad which collects all your fails (bsd3, control, library)AlekseyUymanov
applicative-numbers240.0Applicative-based numeric instances (bsd3, data, library, numerical)ConalElliott
applicative-quoters170.0Quasiquoters for idiom brackets and an applicative do-notation (bsd3, language, library)BenMillwood
apply-refact360.0Perform refactorings specified by the refact library. (bsd3, development, library, program)mpickering
apportionment70.0Round a set of numbers while maintaining its sum (bsd3, library, math)HenningThielemann
approximate220.0Approximate discrete values and numbers (bsd3, library, numeric)EdwardKmett, EricMertens, ryanglscott
approximate-equality80.0Newtype wrappers for approximate equality (bsd3, data, library)GregoryCrosswhite
arb-fft60.0Pure Haskell arbitrary length FFT library (bsd3, library, math, program)IanRoss
arbb-vm100.0FFI binding to the Intel Array Building Blocks (ArBB) virtual machine. (bsd3, foreign, library)JoelSvensson
archive30.0A library and programs for creating hardlinked incremental archives or backups (bsd3, library, program, system)DavidFox, JeremyShaw
archiver210.0Archive supplied URLs in WebCite & Internet Archive (bsd3, documentation, library, network, program)GwernBranwen
archlinux (deprecated)440.0Support for working with Arch Linux packages. (bsd3, deprecated, distribution, library)DonaldStewart, MagnusTherning, PeterSimons
archlinux-web20.0Website 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
arena40.0A journaled data store (benchmark, bsd3, database, library)AlecHeller, davean
arff90.0Generate Attribute-Relation File Format (ARFF) files (bsd3, data, library, text)StefanKersten
argon250.0Haskell bindings to libargon2 - the reference implementation of the Argon2 password-hashing function (bsd3, library, unclassified)JoeyHess, OliverCharles
argparser80.0Command line parsing framework for console applications (bsd3, console, library)sbergot
arith-encode40.0A practical arithmetic encoding (aka Godel numbering) library. (bsd3, data, library, serialization, test, testing)emc2
arithmatic90.0do things with numbers (bsd3, library, math)AlanHawkins
arpa20.0Library for reading ARPA n-gram models (bsd3, library, natural-language-processing, nlp, program, text)StefanFischer
arpack30.0Solve large scale eigenvalue problems (bsd3, library, science)ThomasTuegel
array4172.0Mutable and immutable arrays (bsd3, data-structures, library)AustinSeipp, HerbertValerioRiedel, IanLynagh
array-memoize50.0Memoization combinators using arrays for finite sub-domains of functions (bsd3, library, syntax)DominicOrchard
array-primops80.0Extra foreign primops for primitive arrays (benchmark, bsd3, data, library)AndrasKovacs
array-utils (deprecated)160.0Primitive functions for updating many elements in mutable arrays at once (bsd3, data, data-structures, deprecated, library)AlexMason
arrow-extras70.0Extra functions for Control.Arrow (bsd3, control, library)louispan
arrow-list120.0List arrows for Haskell. (bsd3, control, library)AdamBergmark, ErikHesselink, SebastiaanVisser
arrowapply-utils40.0Utilities for working with ArrowApply instances more naturally (bsd3, control, library)AndrewMiller
arrows500.0Arrow classes and transformers (bsd3, control, library)RossPaterson
artery40.0A simple, arrow-based reactive programming (bsd3, control, frp, library)FumiakiKinoshita
arx170.0Archive execution tool. (bsd3, library, text)JasonDusek
ascii (deprecated)170.0Type-safe, bytestring-based ASCII values. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
ascii-art-to-unicode70.0ASCII Art to Unicode Box Drawing converter (bsd3, library, program, unclassified)fmthoma
ascii-cows50.0A collection of ASCII cows. Moo. (acme, bsd3, library)passy
ascii-table50.0ASCII table (bsd3, data, library)mitchellwrosen
ascii85-conduit20.0Conduit for encoding ByteString into Ascii85 (bsd3, conduit, data, library)KazuoKoga
asciidiagram202.0Pretty rendering of Ascii diagram into svg or png. (bsd3, diagram, library, program, text)VincentBerthoux
asn1-codec70.0Encode and decode ASN.1 (bsd3, library, web)andrewthad
asn1-data (deprecated in favor of asn1-encoding)580.0ASN1 data reader and writer in RAW, BER and DER forms (bsd3, data, deprecated, library)VincentHanquez
asn1-encoding10791.75ASN1 data reader and writer in RAW, BER and DER forms (bsd3, data, library)VincentHanquez
asn1-parse10100.0Simple monadic parser for ASN1 stream types. (bsd3, data, library)VincentHanquez
asn1-types10210.0ASN.1 types (bsd3, data, library)VincentHanquez
asn1dump40.0Dump ASN1 structure (bsd3, debug, program)VincentHanquez
aspell-pipe100.0Pipe-based interface to the Aspell program (bsd3, library, text)JonathanDaugherty
assembler20.0Haskell Assembler (bsd3, development, library, program)JeffDouglas
assert60.0Helpers for Control.Exception.assert (bsd3, control, library)LiyangHu
assert-failure1672.0Syntactic sugar improving 'assert' and 'error' (bsd3, contract, control, library)MikolajKonarski
assimp40.0The Assimp asset import library (bsd3, graphics, library)JoelBurget
ast-monad50.0A library for constructing AST by using do-notation (bsd3, language, library)MasatoMouri
ast-monad-json90.0A library for writing JSON (bsd3, language, library)MasatoMouri
astar130.0General A* search algorithm. (bsd3, data, library)CaleGibbard, JohannesWeiss
astrds40.0an incomplete 2d space game (bsd3, game, program)AndresLoeh
astro172.0Amateur astronomical computations (bsd3, library, science)aignatyev17
async29482.5Run IO operations asynchronously and wait for their results (bsd3, concurrency, library)PeterSimons, SimonMarlow
async-dejafu (deprecated in favor of concurrency)100.0Run MonadConc operations asynchronously and wait for their results. (bsd3, concurrency, deprecated, library)barrucadu
async-extras90.0Extra Utilities for the Async Library (bsd3, concurrency, library)JonathanFischoff, lloucas
async-io-either122.0Could be useful (bsd3, error-handling, library)schalmers
async-manager20.0A thread manager for async (bsd3, concurrency, library, program)JonathanFischoff
async-refresh90.0Package implementing core logic for refreshing of expiring data. (bsd3, control, library)mtesseract
async-refresh-tokens120.0Package implementing core logic for refreshing of expiring access tokens (bsd3, control, library)mtesseract
async-timer40.0Provides API for timer based execution of IO actions (bsd3, concurrency, library)mtesseract
aterm-utils40.0Utility functions for working with aterms as generated by Minitermite (bsd3, language, library, program)JasonDagit
atl130.0Arrow Transformer Library (bsd3, control, library)MatthewFarkasDyck
atmos-dimensional (deprecated in favor of atmos)50.0dimensional wrapper on atmos package (bsd3, deprecated, library, science)GregHorn
atmos-dimensional-tf (deprecated in favor of atmos)50.0dimensional-tf wrapper on atmos package (bsd3, deprecated, library, science)GregHorn
atndapi30.0An interface of ATND API (bsd3, library, web)ynishi
atom540.0An EDSL for embedded hard realtime applications. (bsd3, embedded, language, library)LeePike, TomHawkins
atom-basic130.0Basic Atom feed construction (bsd3, library, web)cbaatz
atomic-primops660.0A safe approach to CAS and other atomic ops in Haskell. (bsd3, data, library)BrandonSimmons, GregoryCollins, RyanNewton, ryanglscott, peter_fogg, chchen
atomic-primops-foreign50.0An atomic counter implemented using the FFI. (bsd3, data, library)RyanNewton
atomic-primops-vector30.0Atomic operations on Data.Vector types (bsd3, concurrency, library)peter_fogg
atomo200.0A highly dynamic, extremely simple, very fun programming language. (bsd3, language, program)AlexSuraci
atp-haskell100.0Translation from Ocaml to Haskell of John Harrison's ATP code (bsd3, library, logic, theorem-provers)DavidFox
attempt (deprecated in favor of exceptions)300.0Concrete data type for handling extensible exceptions as failures. (deprecated) (bsd3, data, deprecated, failure, library)MichaelSnoyman
attic-schedule30.0A script I use to run "attic" for my backups. (bsd3, program, web)passy
atto-lisp250.0Efficient parsing and serialisation of S-Expressions. (bsd3, data, library, text)ThomasSchilling
attoparsec35302.5Fast combinator parsing for bytestrings and text (benchmark, bsd3, library, parsing, text)BasVanDijk, BenGamari, BryanOSullivan
attoparsec-binary420.0Binary processing extensions to Attoparsec. (bsd3, data, library)AndrewDrake
attoparsec-expr110.0Port of parsec's expression parser to attoparsec. (bsd3, library, parsing, text)AdamBergmark, SebastiaanVisser
attoparsec-iso86014942.0Parsing of ISO 8601 dates, originally from aeson. (bsd3, library, parsing)AdamBergmark
attoparsec-iteratee170.0An adapter to convert attoparsec Parsers into blazing-fast Iteratees (bsd3, data, library)GregoryCollins, JohnLato
attoparsec-text (deprecated in favor of attoparsec)140.0(deprecated) (bsd3, deprecated, library, parsing, text)BryanOSullivan, FelipeLessa
attoparsec-uri70.0URI parser / printer using attoparsec (bsd3, library, network)athanclark
attosplit50.0Split a lazy bytestring at boundaries defined by an attoparsec parser (bsd3, data, library)YitzGale
atuin20.0Embedded Turtle language compiler in Haskell, with Epic output (bsd3, compilers-interpreters, program)EdwinBrady
audacity100.0Interchange with the Audacity sound signal editor (bsd3, library, sound)HenningThielemann
audiovisual10.0A battery-included audiovisual framework (bsd3, data, library, records)FumiakiKinoshita
augur90.0Renaming media collections in a breeze. (bsd3, program, text)DavidHimmelstrup
aur-api30.0ArchLinux AUR json v5 API (bsd3, library, web)wangbj
authenticate-kerberos40.0Authentication methods for Haskell web applications. (bsd3, library, web)ArashRouhani
authenticate-ldap50.0LDAP authentication for Haskell web applications. (bsd3, library, web)MichaelLitchard
authenticate-oauth960.0Library to authenticate with OAuth for Haskell web applications. (bsd3, library, web)FelipeLessa, HiromiIshii, MichaelLitchard, MichaelSnoyman, achirkin
authoring90.0A library for writing papers (bsd3, library, text)TakayukiMuranushi
automitive-cse (deprecated in favor of automotive-cse)50.0Automotive CSE emulation (bsd3, codec, deprecated, library)KeiHibino
automotive-cse (deprecated)170.0Automotive CSE emulation (bsd3, codec, deprecated, library)KeiHibino
autonix-deps (deprecated)60.0Library 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
autoproc100.0EDSL for Procmail scripts (bsd3, library, program, system)GwernBranwen, JasonDagit
avahi30.0Minimal DBus bindings for Avahi daemon (http://avahi.org) (bsd3, library, network)IlyaPortnov
avatar-generator20.0A simple random avatar icon generator (bsd3, graphics, program)IvanPerez, keera_studios_ci
average40.0An average (arithmetic mean) monoid. (bsd3, library, unclassified)HansHoglund
avl-static30.0A compile-time balanced AVL tree. (bsd3, data, library)FedericoLebron
avro160.0Avro serialization support for Haskell (bsd3, data, library)alexeyraga
aws1080.0Amazon Web Services (AWS) for Haskell (aws, bsd3, cloud, distributed-computing, library, network, web)AristidBreitkreuz, BenGamari, FelipeLessa, JohnWiegley, MichaelSnoyman
aws-cloudfront-signer160.0For signing AWS CloudFront HTTP URL requests (aws, bsd3, cloud, distributed-computing, library, network, web)ChrisDornan
aws-ec2140.0AWS EC2/VPC, ELB and CloudWatch client library for Haskell (aws, bsd3, cloud, distributed-computing, library, network, program, web)AmitLevy, DavidTerei, IanRoss, VladimirKirillov
aws-elastic-transcoder60.0Haskell suite for the Elastic Transcoder service (aws, bsd3, cloud, distributed-computing, library, network, web)ChrisDornan
aws-route53100.0Amazon Route53 DNS service plugin for the aws package. (bsd3, library, web)AmitLevy, DavidTerei
aws-sdk370.0AWS SDK for Haskell (aws, bsd3, cloud, distributed-computing, library)YusukeNomura
aws-sdk-text-converter70.0The text converter for aws-sdk. (bsd3, library, web)YusukeNomura
aws-sdk-xml-unordered80.0The xml parser for aws-sdk package (bsd3, library, xml)ShoheiYasutake
aws-sign450.0Amazon Web Services (AWS) Signature v4 HTTP request signer (aws, bsd3, cloud, distributed-computing, library, network, web)ChrisDornan
azure-acs40.0Windows Azure ACS (bsd3, library, web)kapilash
azure-service-api10.0Haskell bindings for the Microsoft Azure Service Management API (bsd3, library, network)EdskoDeVries, MathieuBoespflug, TimWatson
azure-servicebus50.0Haskell wrapper over Microsoft Azure ServiceBus REST API (bsd3, library, web)kapilash
azurify120.0A simple library for accessing Azure blob storage (bsd3, development, library)ArnoVanLumig, GregWeber, SeanLeather
b-tree200.0Immutable disk-based B* trees (benchmark, bsd3, data, library)BenGamari
backprop90.0Heterogeneous, 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
bake140.0Continuous integration system (bsd3, development, library, program)NeilMitchell
ballast90.0Shipwire API client (bsd3, library, web)alexeyzab
bamboo-plugin-photo40.0A photo album middleware (bsd3, library, web)JinjingWang
bamboo-theme-blueprint140.0bamboo blueprint theme (bsd3, library, web)JinjingWang
bamse120.0A Windows Installer (MSI) generator framework (bsd3, library, system)SigbjornFinne
bank-holidays-england200.0Calculation of bank holidays in England and Wales (bsd3, data, library)dcturner
barchart70.0Creating Bar Charts in Haskell (bsd3, graphics, library, program)SebastianFischer
barecheck (deprecated)60.0QuickCheck implementations for common types (bsd3, deprecated, library, testing)OmariNorman
base4562.75Basic libraries (bsd3, library, prelude)AustinSeipp, HerbertValerioRiedel, IanLynagh, PaoloCapriotti
base-feature-macros70.0Semantic CPP feature macros for base (bsd3, development, library)HerbertValerioRiedel
base-noprelude232.0"base" package sans "Prelude" module (bsd3, development, library)HerbertValerioRiedel
base-unicode-symbols5192.25Unicode alternatives for common functions and operators (bsd3, library, unclassified)RoelVanDijk
base16-bytestring10852.0Fast 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
base64-bytestring23250.0Fast 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
basement7850.0Foundation scrap box of array & string (bsd3, library, web)MichaelSnoyman, VincentHanquez, nicolasdp
bash150.0Bash generation library. (bsd3, language, library)JasonDusek
basic-cpuid40.0A small package to access the cpuid instruction directly. (bsd3, library, system)JonasScholl
basic-lens180.0Basic lens type and functions (bsd3, development, library)ChrisDone
basic-sop160.0Basic examples and functions for generics-sop (bsd3, generics, library)AndresLoeh
batchd30.0Batch processing toolset for Linux / Unix (bsd3, program, system)IlyaPortnov
battleships40.0A web-based implementation of battleships including an AI opponent. (bsd3, game, library)fatho
bayes-stack20.0Framework for inferring generative probabilistic models with Gibbs sampling (bsd3, library, math)BenGamari
bbi30.0Tools for reading Big Binary Indexed files, e.g., bigBed, bigWig (bio, bsd3, library)kaizhang
bcrypt270.0Haskell bindings to the bcrypt password hash (bsd3, cryptography, data, library)AndrewMiller
bdo50.0Update CSS in the browser without reloading the page. (bsd3, library, program, web)ChrisDone
beam-th72.0Template Haskell utilities for beam (bsd3, database, library, template-haskell)hesiod
beamable50.0Generic serializer/deserializer with compact representation (benchmark, bsd3, data, library, serialization)JohnLato, MichaelBaikov
bearriver40.0A replacement of Yampa based on Monadic Stream Functions. (bsd3, frp, library)IvanPerez, keera_studios_ci
beeminder-api20.0Bindings to the beeminder.com JSON API (bsd3, library, network)BrentYorgey, DanielWagner, RobinGreen
bench190.0Command-line benchmark tool (bsd3, program, system)GabrielGonzalez
benchpress320.0Micro-benchmarking with detailed statistics. (bsd3, library, program, testing)JohanTibell, willsewell
bencode302.0Parser and printer for bencoded data. (bsd3, library, text)DavidHimmelstrup, ChristopherReichert
bencoding190.0A library for encoding and decoding of BEncode data. (benchmark, bsd3, data, library)SamTruzjan
berkeleydb40.0Pretty BerkeleyDB v4 binding. (bsd3, database, library)DavidHimmelstrup
berp70.0An implementation of Python 3. (bsd3, language, library, program)BerniePope
bert240.0BERT implementation (bsd3, data, library)MariusEriksen, RomanCheplyaka, manzyuk
besout40.0Extended GCD of polynomials over F_p[x] (bsd3, library, math)AbdelwahebMiled
between80.0Function combinator "between" and derived combinators (bsd3, data, library)PeterTrsko
bff-mono50.0"Bidirectionalization for Free" for Monomorphic Transformations (bsd3, data, lenses, library)kztk
bgmax70.0Parse BgMax-files (bsd3, finance, library)petterb
bgzf (deprecated in favor of pipes-bgzf)20.0Blocked GZip (bsd3, codec, deprecated, library)rcallahan
bibtex280.0Parse, format and processing BibTeX files (bsd3, library, text)HenningThielemann
bifunctors16542.5Bifunctors (bsd3, data, functors, library)EdwardKmett, EricMertens, ryanglscott
bimap290.0Bidirectional mapping between two key types (bsd3, data, library)StuartCook, joel_williamson
bimap-server60.0Two-column database server. (bsd3, data, library)DanielDiaz
bimaps130.0bijections with multiple implementations. (benchmark, bsd3, data, library)ChristianHoener
binary8390.0Binary serialisation for Haskell values using lazy ByteStrings (benchmark, bsd3, data, library, parsing)DonaldStewart, IanLynagh, LennartKolmodin
binary-bits200.0Bit parsing/writing on top of binary. (bsd3, data, library, parsing)LennartKolmodin
binary-communicator100.0Flexible way to ease transmission of binary data. (bsd3, data, library)SoenkeHahn, YvesPares
binary-enum40.0Simple wrappers around enum types (bsd3, data, library)tolysz
binary-ext90.0An alternate with typed errors for Data.Binary.Get monad from 'binary' library. (bsd3, data, library, parsing)warlock
binary-file220.0read/write binary file (bsd3, file, library)YoshikuniJujo
binary-generic60.0Generic binary serialisation using binary and syb. (bsd3, data, library, parsing)LarsPetersen
binary-ieee75460.0Backport ieee754 float double combinators to older binary (bsd3, data, library)winterland
binary-list330.0Lists of length a power of two. (benchmark, bsd3, data, library)DanielDiaz
binary-literal-qq (deprecated)30.0Extends Haskell with binary literals. (bsd3, deprecated, language, library)MathieuBoespflug
binary-orphans510.0Orphan instances for binary (bsd3, library, web)phadej
binary-parsers110.0Extends binary with parsec/attoparsec style parsing combinators. (benchmark, bsd3, data, library)winterland
binary-protocol20.0Monad 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-search200.0Binary and exponential searches (algorithms, bsd3, library)RossPaterson, TakayukiMuranushi
binary-serialise-cbor70.0Yet Another Binary Serialisation Library (compatibility shim) (bsd3, codec, library)BenGamari
binary-state70.0Simple wrapper around Data.Binary, which adds StateT to Get/Put monads. (bsd3, data, library)IlyaPortnov
binary-store (deprecated)30.0Format to store data using the binary transform. (bsd3, data, deprecated, library)DanielDiaz
binary-streams20.0data serialization/deserialization io-streams library (bsd3, data, io-streams, library)GregoryCollins, petterb
binary-strict430.0Binary deserialisation using strict ByteStrings (bsd3, data, library, parsing)AdamLangley, DominicSteinitz
binary-tagged340.0Tagged binary serialisation. (benchmark, bsd3, library, web)phadej
binarydefer90.0Binary serialization with deferred loading (bsd3, data, library)NeilMitchell
bind-marshal40.0Data marshaling library that uses type level equations to optimize buffering. (bsd3, data, library)CoreyOConnor
binding-core70.0Data Binding (bsd3, gui, library, user-interfaces)GideonSireling
binding-gtk40.0Data Binding in Gtk2Hs (bsd3, gui, library, user-interfaces)GideonSireling
binding-wx50.0Data Binding in WxHaskell (bsd3, gui, library, user-interfaces)GideonSireling
bindings (deprecated)110.0Deprecated package. (bsd3, deprecated, ffi, library)MauricioAntunes
bindings-DSL722.0FFI domain specific language, on top of hsc2hs. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-GLFW632.0Low-level bindings to GLFW OpenGL library (bsd3, graphics, library)BrianLewis, SchellScivally, javjarfer
bindings-K805570.0Bindings to Velleman K8055 dll (bsd3, ffi, library)JorisPutcuyps
bindings-common (deprecated in favor of bindings-DSL)430.0This package is obsolete. Look for bindings-DSL instead. (bsd3, deprecated, ffi, library)BasVanDijk, MauricioAntunes
bindings-dc139470.0Library for using firewire (iidc-1394) cameras (bsd3, library, system)VilleTirronen
bindings-directfb70.0Low level bindings to DirectFB (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-eskit20.0Bindings to ESKit. (bsd3, ffi, library, numerical)AndrewMiller
bindings-fann50.0Low level bindings to FANN neural network library. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-fluidsynth40.0Haskell FFI bindings for fluidsynth software synthesizer (bsd3, library, sound)BenGamari
bindings-glib110.0Low level bindings to GLib. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-gobject140.0Low level bindings supporting GObject and derived libraries. (bsd3, ffi, library)MauricioAntunes, YurasShumovich
bindings-gpgme120.0Project bindings-* raw interface to gpgme (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-gsl190.0Low level bindings to GNU GSL. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-hdf530.0Project bindings-* raw interface to HDF5 library (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-libcddb70.0Low level binding to libcddb. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-libffi110.0Low level bindings to libffi. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-libusb370.0Low level bindings to libusb. (bsd3, ffi, library)BasVanDijk, MauricioAntunes
bindings-libv4l240.0bindings to libv4l2 for Linux (bsd3, library, system)ClaudeHeilandAllen
bindings-libzip180.0Low 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-lxc70.0Direct Haskell bindings to LXC (Linux containers) C API. (bsd3, ffi, library)NickolayKudasov
bindings-mmap60.0(deprecated) see bindings-posix instead (bsd3, library, system)ClaudeHeilandAllen
bindings-monetdb-mapi20.0Low-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-parport90.0parport bindings (bsd3, ffi, library)SivaramGowkanapalli
bindings-portaudio90.0Low-level bindings to portaudio library (bsd3, library, sound)FumiakiKinoshita
bindings-posix230.0Low level bindings to posix. (bsd3, ffi, library)BasVanDijk, JohnWiegley, MauricioAntunes
bindings-ppdev70.0PPDev bindings (bsd3, ffi, library)SivaramGowkanapalli
bindings-sophia50.0Low-level bindings to sophia library (bsd3, database, library)EyalLotem
bindings-sqlite3120.0Low level bindings to sqlite3. (bsd3, ffi, library)JohnWiegley, MauricioAntunes
bindings-svm80.0Low level bindings to libsvm. (bsd3, ffi, library)PauloTanimoto, VilleTirronen
bindings-wlc70.0Bindings against the wlc library (bsd3, ffi, library)ashleyis
binembed50.0Embed data into object files. (bsd3, distribution, library, program)ClaudeHeilandAllen
binembed-example40.0Example project using binembed to embed data in object files. (bsd3, distribution, program)ClaudeHeilandAllen
bini82.0A collection of various methods for reading and writing bini files. (bsd3, configuration, data, library)TWeise
bio-sequence (deprecated)60.0Initial project template from stack (bio, bsd3, deprecated, library)ozzzzz
biohazard350.0bioinformatics support library (bioinformatics, bsd3, library)ustenzel
biostockholm120.0Parsing and rendering of Stockholm files (used by Pfam, Rfam and Infernal). (bioinformatics, bsd3, library)FelipeLessa
bird340.0A simple, sinatra-inspired web framework. (bsd3, library, program, web)MattParker
bit-stream110.0Lazy, infinite, compact stream of Bool with O(1) indexing. (benchmark, bsd3, library, unclassified)Bodigrim
bit-vector50.0Simple bit vectors for Haskell (bit-vectors, bsd3, data, library)AdamFoltzer
bitarray350.0Mutable and immutable bit arrays (bsd3, data, library)BalazsKomuves
bitcoin-hs30.0Partial implementation of the Bitcoin protocol (as of 2013) (bitcoin, bsd3, cryptography, library)BalazsKomuves
bitcoin-rpc20.0Library to communicate with the Satoshi Bitcoin daemon (bitcoin, bsd3, library, network)JanVornberger
bitly-cli (deprecated)40.0A command line tool to access bit.ly URL shortener. (bsd3, deprecated, program, utils, web)SergeyAstanin
bitmap90.0A library for handling and manipulating bitmaps (rectangular pixel arrays). (bsd3, data, graphics, library)BalazsKomuves
bitmap-opengl60.0OpenGL support for Data.Bitmap. (bsd3, data, graphics, library)BalazsKomuves
bitmaps80.0Bitmap library (bsd3, codec, data, graphics, library)ByronJohnson
bits232.0Various bit twiddling and bitwise serialization primitives (bsd3, data, library, serialization)EdwardKmett, EricMertens, ryanglscott
bits-atomic220.0Atomic bit operations on memory locations for low-level synchronization (bsd3, concurrency, data, foreign, library)GabrielWicke
bits-bytestring30.0Bits instance for bytestrings. (benchmark, bsd3, data, library)oldmanmike
bits-bytestring-lazy30.0Bits instance for lazy bytestrings. (benchmark, bsd3, data, library)semaj
bits-conduit20.0Bitstream support for Conduit (benchmark, bsd3, conduit, data, library)HideyukiTanaka
bits-extras100.0Efficient high-level bit operations not found in Data.Bits (bsd3, data, library)GabrielWicke
bitstring40.0Lazy bit strings (bsd3, data, library)BalazsKomuves
bittorrent30.0Bittorrent protocol implementation. (bsd3, library, network)SamTruzjan
bitwise180.0fast multi-dimensional unboxed bit packed Bool arrays (benchmark, bit-vectors, bsd3, data, data-structures, library)ClaudeHeilandAllen
bitx-bitcoin291.5A Haskell library for working with the BitX bitcoin exchange. (bitcoin, bsd3, finance, library, web)tebello_thejane
bizzlelude500.0A lousy Prelude replacement by a lousy dude (bsd3, library, prelude)TheBizzle
bkr40.0Backup utility for backing up to cloud storage services (S3 only right now) (backup, bsd3, library, program, system)MichaelSmietana
bktrees250.0A set data structure with approximate searching (bsd3, data-structures, library)JosefSvenningsson
bla (deprecated)40.0a stupid cron (bsd3, deprecated, program, system)JinjingWang
blakesum (deprecated)170.0The BLAKE SHA-3 candidate hashes, in Haskell (bsd3, cryptography, deprecated, library)KevinCantu
blakesum-demo (deprecated)40.0The BLAKE SHA-3 candidate hashes, in Haskell (bsd3, cryptography, deprecated, program)KevinCantu
blank-canvas360.0HTML5 Canvas Graphics Library (bsd3, graphics, library)AndrewFarmer, AndyGill, ryanglscott
blas (deprecated in favor of hblas)210.0Bindings to the BLAS library (bsd3, deprecated, library, math)CarterSchonwald
blaze (deprecated)50.0None (bsd3, deprecated, library, unclassified)
blaze-builder17910.0Efficient buffered output. (bsd3, data, library)JasperVanDerJeugt, LeonSmith, SimonMeier
blaze-builder-conduit (deprecated in favor of conduit-extra)230.0Convert streams of builders to streams of bytestrings. (deprecated) (bsd3, conduit, data, deprecated, library)MichaelSnoyman
blaze-builder-enumerator360.0Enumeratees 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-html13672.25A blazingly fast HTML combinator library for Haskell (bsd3, library, text)JasperVanDerJeugt, SimonMeier
blaze-html-contrib70.0Some 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-truncate100.0A truncator for blaze-html (bsd3, library, text)MarcelRuegenberg
blaze-markup12680.0A blazingly fast markup combinator library for Haskell (bsd3, library, text)DeepakJois, JasperVanDerJeugt
blaze-shields52.0create svg by Haskell (bsd3, library, web)Qinka
blaze-svg3622.0SVG combinator library (bsd3, graphics, library)BrentYorgey, DeepakJois
blaze-textual1000.0Fast 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
ble430.0Bluetooth Low Energy (BLE) peripherals (bsd3, library, program, unclassified)jkarni, scottmurphy09
blink170.0Control library for blink(1) LED from ThingM (bsd3, hardware, library, program)DylanSimon
blip30.0Python to bytecode compiler. (bsd3, language, program)BerniePope
bliplib40.0Support code for Blip. (bsd3, development, library)BerniePope
blockchain90.0Generic blockchain implementation. (blockchain, bsd3, library)tgolson
blockhash40.0Blockhash perceptual image hash algorithm (bsd3, library, program, web)kseo
blocking-transactions50.0Composable, blocking transactions. (bsd3, concurrency, library)ChristopherLaneHinson
blogination (deprecated)150.0Very simple static blog software (bsd3, deprecated, library, program, web)ChrisDone
bloodhound611.75ElasticSearch client library for Haskell (bsd3, database, library, search)MichaelXavier, bitemyapp, ChrisAllen
bloodhound-amazonka-auth70.0Adds convenient Amazon ElasticSearch Service authentication to Bloodhound. (bsd3, library, web)MichaelXavier
bloomfilter660.0Pure 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
bluemix-sdk60.0Bindings to Bluemix APIs (bsd3, library, web)AlexanderThiemann
bluetile290.0full-featured tiling for the GNOME desktop environment (bsd3, program, system)JanVornberger
bluetileutils (deprecated in favor of bluetile)40.0Utilities for Bluetile (bsd3, deprecated, program, utils)JanVornberger
bogre-banana20.0 (bsd3, game-engine, library, program)DavidEichmann
bolt150.0Bolt driver for Neo4j (bsd3, database, library)bflyblue
bond-haskell80.0Runtime support for BOND serialization (benchmark, bsd3, data, library, parsing)blaze
bond-haskell-compiler100.0Bond code generator for Haskell (bsd3, language, library, program)blaze
bookkeeper110.0Anonymous records and overloaded labels (benchmark, bsd3, data-structures, library, program, records)jkarni, aminb
bookkeeper-permissions10.0Permissions for bookkeeper records (bsd3, data-structures, library, records)pkamenarsky
bool-extras100.0A fold function for Bool (bsd3, data, library)TomLokhorst
boolean-like50.0Logical combinatory operations dealing with datatypes representing booleans by their constructors. (bsd3, control, library)Shou
boolexpr20.0Boolean expressions with various representations and search queries. (bsd3, data-structures, library, parsing, search)NicolasPouillard
bools (deprecated)50.0None (bsd3, deprecated, library, unclassified)
boolsimplifier90.0Simplification tools for simple propositional formulas. (bsd3, language, library, math)GershomBazerman
boombox20.0Chronokinetic stream sources and incremental consumers (bsd3, data, library)FumiakiKinoshita
boomerang300.0Library for invertible parsing and printing (bsd3, library, parsing, text)DagOdenhall, JeremyShaw
bordacount180.0Implementation of the Borda count election method. (algorithms, bsd3, library)hverr
borel20.0Metering System for OpenStack metrics provided by Vaultaire. (bsd3, development, library)fractalcat
boring-game70.0An educational game (bsd3, library, program, web)checkraiser
boring-window-switcher100.0A boring window switcher. (bsd3, graphics, library, program)debugito
bot90.0bots for functional reactive programming (bsd3, frp, library, reactivity)ConalElliott
bound472.5Making de Bruijn Succ Less (bsd3, compilers-interpreters, language, library)EdwardKmett, EricMertens, ryanglscott
bounded-tchan (deprecated in favor of stm-chans)120.0Bounded Transactional channels (queues) (bsd3, concurrency, deprecated, library)ThomasDuBuisson
boundingboxes90.0A generic boundingbox for an arbitrary vector (bsd3, data, library)FumiakiKinoshita
boxes1580.02D text pretty-printing library (bsd3, library, text)BrentYorgey, dfeuer
bpann40.0backpropagation neuronal network (ai, bsd3, library)RobertSteuck
braid20.0Types and functions to work with braids and Khovanov homology. (bsd3, library, math, program)saltza
brain-bleep40.0primitive imperative language (bsd3, language, program)AlanHawkins
brainfuck-monad70.0BrainFuck monad (bsd3, compilers-interpreters, library)JoeyHess
brainfuck-tut120.0A simple BF interpreter. (bsd3, language, library, program)alleledev
brainheck130.0Brainh*ck interpreter in haskell (benchmark, bsd3, library, program, web)vmchale
break80.0Break from a loop (bsd3, control, library)GabrielGonzalez
brians-brain30.0A Haskell implementation of the Brian's Brain cellular automaton (bsd3, game, program)WillDonnelly
brick1552.75A declarative terminal user interface library (bsd3, graphics, library)JonathanDaugherty
brillig40.0Simple part of speech tagger (bsd3, library, natural-language-processing, program)EricKow
broadcast-chan60.0Broadcast channel type that avoids 0 reader space leaks. (bsd3, library, system)MerijnVerstraaten
broccoli70.0Small library for interactive functional programs. (bsd3, frp, library)evanrinehart
broker-haskell10.0Haskell bindings to Broker, Bro's messaging library. (bsd3, language, library)DavidBanas
browscap50.0A reader and interface for the Browser Capabilities Project data files. (bsd3, data, library, web)davean
bsd-sysctl280.0Access to the BSD sysctl(3) interface (bsd, bsd3, library, system)MaximeHenrion, palik
bson-generic80.0Generic functionality for BSON (bsd3, data, library)PetrPilar
bson-generics (deprecated in favor of bson-generic)10.0Generics functionality for BSON (bsd3, data, deprecated, library)PetrPilar
bspack60.0A simple and fast bytestring packer (benchmark, bsd3, data, library)nicolasdp
bsparse60.0A simple unassuming parser for bytestring (bsd3, bsparse, library)VincentHanquez, nicolasdp
btree50.0B-Tree on the compact heap (benchmark, bsd3, library, web)andrewthad
btrfs120.0Bindings to the btrfs API (bsd3, filesystem, library, system)MariosTitas
buffer-builder200.0Library for efficiently building up buffers, one piece at a time (benchmark, bsd3, data, library)chadaustin, afriesen
buffer-pipe50.0Read from stdin and write to stdout in large blocks (bsd3, console, program)HenningThielemann
bugzilla50.0A Haskell interface to the Bugzilla native REST API (bsd3, library, web)swift, sethfowler
buildbox490.0Rehackable components for writing buildbots and test harnesses. (bsd3, development, library, testing)BenLippmeier
buildbox-tools140.0Tools for working with buildbox benchmark result files. (bsd3, development, program, testing)BenLippmeier
buildwrapper540.0A library and an executable that provide an easy API for a Haskell IDE (bsd3, development, library, program)JeanPhilippeMoresmau
bullet120.0A wrapper for the Bullet physics engine. (bsd3, library, physics)CsabaHruska
bumper160.0Automatically bump package versions, also transitively. (bsd3, development, program)AdamBergmark, BramSchuur, ErikHesselink
bus-pirate680.0Haskell interface to the Bus Pirate binary interface (bsd3, library, system)BenGamari
buster280.0Almost but not quite entirely unlike FRP (bsd3, frp, library)JeffersonHeard
buster-gtk40.0Almost but not quite entirely unlike FRP (bsd3, frp, library)JeffersonHeard
buster-network60.0Almost but not quite entirely unlike FRP (bsd3, frp, library)JeffersonHeard
butcher390.0Chops a command or program invocation into digestable pieces. (bsd3, library, ui)lspitzner
bv130.0Bit-vector arithmetic library (bit-vectors, bsd3, data, library)IagoAbal
bytable160.0data from/to ByteString (bsd3, codec, library)YoshikuniJujo
byteable11310.0Type class for sequence of bytes (bsd3, data, library)VincentHanquez
bytedump60.0Flexible byte dump helpers for human readers. (bsd3, debug, library)VincentHanquez
byteorder7050.0Exposes the native endianness or byte ordering of the system. (bsd3, library, system)AntoineLatter
bytes4582.0Sharing code for serialization between binary and cereal (bsd3, data, library, serialization)EdwardKmett, EricMertens, ryanglscott
byteset60.0Set of bytes. (bsd3, data, library)DanielDiaz
bytestring5702.75Fast, compact, strict and lazy byte strings with a list interface (bsd3, data, library)DonaldStewart, DuncanCoutts, HerbertValerioRiedel, IanLynagh
bytestring-arbitrary202.0Arbitrary instances for ByteStrings (benchmark, bsd3, data, library)tsuraan
bytestring-builder10830.0The new bytestring builder, packaged outside of GHC (bsd3, data, library)LeonSmith
bytestring-class (deprecated)40.0Classes for automatic conversion to and from strict and lazy bytestrings. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
bytestring-csv200.0Parse CSV formatted data efficiently (bsd3, data, library)DonaldStewart
bytestring-handle130.0ByteString-backed Handles (bsd3, library, system)GaneshSittampalam
bytestring-mmap330.0mmap support for strict ByteStrings (bsd3, library, system)DonaldStewart
bytestring-nums320.0Parse numeric literals from ByteStrings. (bsd3, library, text)JasonDusek
bytestring-plain40.0Plain byte strings ('ForeignPtr'-less 'ByteString's) (bsd3, data, library)HerbertValerioRiedel
bytestring-progress120.0A library for tracking the consumption of a lazy ByteString (bsd3, control, library)AdamWick
bytestring-short40.0Backport copy of ShortByteString (bsd3, library, text)KeiHibino
bytestring-show500.0Efficient conversion of values into readable byte strings. (bsd3, library, text)DanDoel
bytestring-time (deprecated in favor of text-time)40.0Library for Time parsing from ByteString (bsd3, data, deprecated, library)klangner
bytestring-trie1272.25An efficient finite map from (byte)strings to values. (bsd3, data, data-structures, library)WrenThornton
bytestring-typenats20.0Bytestrings with typenat lengths (benchmark, bsd3, data, library)tsuraan
bytestringparser90.0Combinator parsing with Data.ByteString.Lazy (bsd3, library, parsing, text)BryanOSullivan
bytestringparser-temporary110.0Combinator parsing with Data.ByteString.Lazy (bsd3, library, parsing, text)JasonDusek
bytestringreadp60.0A ReadP style parser library for ByteString (bsd3, library, text)GracjanPolak
byteunits560.0Human friendly conversion between byte units (KB, MB, GB...) (bsd3, library)chrissound
bzlib520.0Compression and decompression in the bzip2 format (bsd3, codec, library)DuncanCoutts
bzlib-conduit130.0Streaming compression/decompression via conduits. (benchmark, bsd3, codec, library)HideyukiTanaka, MichaelSnoyman
c-io30.0C IO. (bsd3, library, system)MattMorrow
c-mosquitto60.0Simpe mosquito MQTT binding able to work with the Amazons IoT (bsd3, library, program)tolysz
c-storable-deriving220.0Generate C-like storable instances from datatypes (bsd3, foreign, library)MatthewMaurer
c10k130.0C10k server library using prefork (bsd3, library, network)KazuYamamoto
c2hsc140.0Convert C API header files to .hsc and .hsc.helper.c files (bsd3, development, program)JohnWiegley
cab530.0A maintenance command of Haskell cabal packages (bsd3, distribution, library, program)KazuYamamoto
cabal-bounds580.0A command line program for managing the bounds/versions of the dependencies in a cabal file. (bsd3, development, library, program, utils)DanielTrstenjak
cabal-cargs440.0A command line program for extracting compiler arguments from a cabal file. (bsd3, development, library, program, utils)DanielTrstenjak
cabal-db162.0query tools for the local cabal database (bsd3, program, tools)VincentHanquez
cabal-debian830.0Create a Debianization for a Cabal package (bsd3, debian, distribution, library, program, system)DavidFox
cabal-dependency-licenses110.0Compose 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-dir80.0show dist dir of 'cabal copy/install' (bsd3, distribution, program)YoshikuniJujo
cabal-doctest14562.0A Setup.hs helper for doctests running (bsd3, distribution, library)phadej
cabal-file-th100.0Template Haskell expressions for reading fields from a project's cabal file. (bsd3, development, library)NickPartridge, SimonMichael
cabal-ghc-dynflags20.0Conveniently configure GHC's dynamic flags for use with Cabal projects (bsd3, development, library)BenGamari
cabal-ghci (deprecated in favor of cabal-install)90.0Set up ghci with options taken from a .cabal file (bsd3, deprecated, development, library, program)EtienneLaurin
cabal-install4842.5The command-line interface for Cabal and Hackage. (bsd3, distribution, program)AndresLoeh, DuncanCoutts, JohanTibell, MikhailGlushenkov, ryant
cabal-install-bundle100.0The (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-ghc7420.0Temporary version of cabal-install for ghc-7.4 (bsd3, distribution, program)AndreasAbel
cabal-lenses170.0Lenses and traversals for the Cabal library. (bsd3, development, library, utils)DanielTrstenjak
cabal-macosx412.0Cabal support for creating Mac OSX application bundles. (bsd3, distribution, library, program)EricKow, dfrancesconi
cabal-meta180.0build multiple packages at once (bsd3, development, library, program)GregWeber
cabal-nirvana (deprecated)60.0Avoid Cabal dependency hell by constraining to known good versions. (deprecated) (bsd3, deprecated, distribution, program)MichaelSnoyman
cabal-progdeps10.0Show dependencies of program being built in current directory (bsd3, distribution, program)KevinQuick
cabal-query40.0Helpers for quering .cabal files or hackageDB's 00-index.tar (bsd3, library, system)MaxDesyatov
cabal-scripts40.0Shell scripts for support of Cabal maintenance (bsd3, development, library)HenningThielemann
cabal-setup40.0The user interface for building and installing Cabal packages (bsd3, distribution, program)DuncanCoutts
cabal-sign80.0Sign and verify Cabal packages. (bsd3, development, program)ChrisDone
cabal-sort160.0Topologically sort cabal packages (bsd3, distribution, program)HenningThielemann
cabal-src (deprecated in favor of stack)140.0Alternative install procedure to avoid the diamond dependency issue. (bsd3, deprecated, distribution, program)MichaelSnoyman
cabal-test20.0Automated test tool for cabal projects. (bsd3, program, testing)DavidHimmelstrup
cabal-test-bin70.0A program for finding temporary build file during cabal-test. (bsd3, library, program, testing)junjihashimoto
cabal-test-compat (deprecated)30.0Compatibility interface of cabal test-suite. (bsd3, deprecated, library, testing)KeiHibino
cabal-uninstall200.0Uninstall cabal packages (bsd3, distribution, program)JanChristiansen
cabal-upload90.0Command-line tool for uploading packages to Hackage (bsd3, distribution, program)BjornBringert
cabal2arch (deprecated)730.0Create 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
cabal2ebuild70.0make gentoo's .ebuild file from .cabal file (bsd3, distribution, library, program)YoshikuniJujo
cabal2ghci50.0A tool to generate .ghci file from .cabal (bsd3, development, program)HiromiIshii
cabal2nix1640.0Convert Cabal files into Nix build instructions. (bsd3, distribution, library, nix, program)PeterSimons
cabalQuery30.0A simple tool to query cabal files. (bsd3, development, library, program)RoganCreswick
cabalgraph60.0Generate pretty graphs of module trees from cabal files (bsd3, distribution, program)DonaldStewart
cabalish70.0Provides access to the cabal file data for shell scripts (bsd3, program, utilities)RobertFischer
cabalvchk30.0Verify installed package version against user-specified constraints. (bsd3, distribution, program)KevinQuick
cabin50.0Cabal binary sandboxes. (bsd3, distribution, program)nclarke
cabocha20.0 (bsd3, library, natural-language-processing)MiyazawaAkira
cache40.0An in-memory key/value store with expiration support (bsd3, cache, data, library)hverr
cached-traversable30.0Transparent, persistent caching of lazy, traversable structures (bsd3, data, library)ThomasTuegel
caf90.0A library of Concurrency Abstractions using Futures. (bsd3, concurrency, library)MartinaWillig
caffegraph30.0 (bsd3, library, math)ajtulloch
cairo2352.0Binding to the Cairo library. (bsd3, graphics, library)AndyStewart, AxelSimon, DanielWagner, DuncanCoutts, HamishMackenzie
cairo-appbase60.0A template for building new GUI applications using GTK and Cairo. (bsd3, development, program)ConradParker
cake3120.0Third cake the Makefile EDSL (bsd3, development, library, program)SergeyMironov
cakyrespa210.0run turtle like LOGO with lojban (bsd3, program, teaching)YoshikuniJujo
calc20.0A small compiler for arithmetic expressions. (bsd3, program, unclassified)AustinSeipp
calendar-recycling30.0List years with the same calendars (bsd3, math, program)HenningThielemann
call140.0The call game engine (bsd3, game, library)FumiakiKinoshita
camh60.0write image files onto 256(or 24bit) color terminals. (bsd3, graphics, program)HironaoKomatsu
campfire40.0Haskell implementation of the Campfire API (bsd3, library, web)MichaelXavier
canonical-filepath60.0Abstract data type for canonical file paths. (bsd3, library, system)ThomasSchilling
cantor40.0Application for analysis of java source code (application, bsd3, program, source-code-analysis)klangner
cap60.0Interprets and debug the cap language. (bsd3, language, program)ThomasDavie
capped-list (deprecated in favor of enumerator)70.0A list-like type for lazy sequences, with a user-defined termination value. (bsd3, data, deprecated, library)JohnMillikin
capri30.0A simple wrapper over cabal-install to operate in project-private mode. (bsd3, distribution, program)DmitryGolubovsky
car-pool30.0Simple web-server for organizing car-pooling for an event (bsd3, program, web)HenningThielemann
carbonara40.0some spaghetti code (bsd3, library, system)szehk
carboncopy40.0Drop emails from threads being watched into special CC folder. (bsd3, email, program)EugenyDzhurinsky
carray310.0A C-compatible array library. (benchmark, bsd3, data, library)HenningThielemann, JedBrown
cartel220.0Specify Cabal files in Haskell (bsd3, distribution, library, program)OmariNorman
cascading (deprecated in favor of clay)10.0DSL for HTML CSS (Cascading Style Sheets) (bsd3, deprecated, library, web)ErtugrulSoeylemez, esz
case-conversion70.0Convert between different cases (bsd3, library, program, text)AlanHawkins
case-insensitive14390.0Case insensitive string comparison (benchmark, bsd3, data, library, text)BasVanDijk
case-insensitive-match40.0A simplified, faster way to do case-insensitive matching. (benchmark, bsd3, library, program, text)mikehat
cash40.0the Computer Algebra SHell (bsd3, computer-algebra, library, math)ChrisBrown
cassandra-cql142.25Haskell client for Cassandra's CQL protocol (bsd3, database, library)StephenBlackheath, kayceesrk
cassava2132.5A CSV parsing and encoding library (bsd3, csv, library, text, web)HerbertValerioRiedel, JohanTibell
cassava-conduit230.0Conduit interface for cassava package (benchmark, bsd3, data, library)domdere
cassava-embed221.25CSV-file embedding library (bsd3, csv, library, text)typeable
cassava-streams70.0io-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
cassy110.0A high level driver for the Cassandra datastore (bsd3, database, library)OzgunAtaman
cast112.0Abstact cast pattern (bsd3, library, pattern)ozzzzz
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-algebra30.0Categorical Monoids and Semirings (bsd3, data, library)JonathanFischoff
categories530.0Categories (bsd3, control, library)EdwardKmett
category-extras470.0A meta-package documenting various packages inspired by category theory (bsd3, comonads, control, library, monads)DanDoel, DanielWagner, EdwardKmett, RussellOConnor
category-printf60.0Highbrow approach to type-safe printf format specifications. (bsd3, library, text)CaleGibbard
category-traced20.0Traced monoidal categories (bsd3, library, math)MatthewFarkasDyck
cautious-file180.0Ways 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-client280.0A Haskell client for the Cayley graph database (bsd3, database, library)MichelBoucey
cbor-tool60.0A tool for manipulating CBOR. (bsd3, codec, program)BenGamari
cborg3312.5Concise Binary Object Representation (bsd3, codec, library)AustinSeipp, BenGamari, DuncanCoutts, HerbertValerioRiedel
cborg-json60.0A library for encoding JSON as CBOR (bsd3, codec, library)BenGamari
cci20.0Bindings for the CCI networking library (bsd3, library, network)FacundoDominguez
ccnx20.0A Haskell implementation of the CCNx network protocol. (bsd3, library, network)TomHawkins
cef70.0CEF log format (bsd3, library, system)utdemir
cef3-raw30.0Raw CEF3 bindings (bsd3, ffi, library)MaksymilianOwsianny
cef3-simple20.0Simple wrapper around cef3-raw (bsd3, ffi, library)MaksymilianOwsianny
ceilometer-common30.0Common Haskell types and encoding for OpenStack Ceilometer (bsd3, development, library)fractalcat
cellrenderer-cairo10.0Cairo-based CellRenderer (bsd3, graphics, library)JohnLato
cerberus (deprecated)20.0Protect and control API access with cerberus (bsd3, deprecated, development, library, program)yogsototh
cereal16072.0A binary serialization library (bsd3, data, library, parsing)EricMertens, TrevorElliott
cereal-conduit310.0Turn Data.Serialize Gets and Puts into Sources, Sinks, and Conduits (bsd3, conduit, library)MichaelSnoyman, MylesMaxfield
cereal-ieee754 (deprecated in favor of cereal)20.0Floating point support for the 'cereal' serialization library (bsd3, data, deprecated, library, parsing)JacobStanley
cereal-io-streams20.0io-streams support for the cereal binary serialization library (benchmark, bsd3, data, io-streams, library, parsing)MichaelXavier
cereal-streams (deprecated in favor of wire-streams)30.0Use cereal to encode/decode io-streams. (benchmark, bsd3, data, deprecated, io-streams, library, parsing)winterland
cereal-vector3560.0Serialize instances for Data.Vector types. (bsd3, data, library)AdamFoltzer
certificate (deprecated in favor of x509)720.0Certificates and Key Reader/Writer (bsd3, data, deprecated, library)VincentHanquez
cfipu20.0cfipu processor for toy brainfuck-like language (bsd3, compilers-interpreters, program)ByronJohnson
cflp460.0Constraint Functional-Logic Programming in Haskell (bsd3, control, library)SebastianFischer
cfopu (deprecated in favor of cfipu)50.0cfopu processor (bsd3, compilers-interpreters, deprecated, program)ByronJohnson
cgen100.0generates Haskell bindings and C wrappers for C++ libraries (bsd3, development, library, program)AnttiSalonen
cgi1060.0A library for writing CGI programs (bsd3, library, network)AndersKaseorg, BjornBringert, IanLynagh, MaxBolingbroke, cheecheeo
cgi-undecidable30.0Undecidable instances for the cgi package. (bsd3, library, unclassified)BjornBringert
cgi-utils90.0Simple modular utilities for CGI/FastCGI (sessions, etc.) (bsd3, cgi, library, web)
chalkboard120.0Combinators for building and processing 2D images. (bsd3, graphics, library)AndyGill
chalkboard-viewer30.0OpenGL based viewer for chalkboard rendered images. (bsd3, graphics, library)AndyGill
chalmers-lava2000220.0Hardware description EDSL (bsd3, hardware, language, library)EmilAxelsson
chan-split120.0Concurrent Chans as read/write pairs. Also provides generic Chan pair class. (bsd3, concurrency, library)BrandonSimmons
change-monger30.0Parse VCS changelogs into ChangeLogs (bsd3, development, library, program, text)GwernBranwen
charade42.0Rapid prototyping websites with Snap and Heist (bsd3, library, program, web)DougBeardsley
charset2130.0Fast unicode character sets based on complemented PATRICIA tries (bsd3, data, library)EdwardKmett
chart-histogram (deprecated in favor of Chart)90.0Easily render histograms with Chart (bsd3, deprecated, graphics, library)BenGamari
chart-unit740.0Native haskell charts. (bsd3, charts, library, program)tonyday567
chaselev-deque140.0Chase & Lev work-stealing lock-free double-ended queues (deques). (bsd3, concurrent, data, library)BrandonSimmons, RyanNewton, peter_fogg
chatter312.0A library of simple NLP algorithms. (bsd3, library, natural-language-processing, program)RoganCreswick
cheapskate1140.0Experimental markdown processor. (bsd3, library, program, text)JohnMacFarlane
cheapskate-highlight50.0Code highlighting for cheapskate (bsd3, library, text)Artyom
cheapskate-lucid40.0Use cheapskate with Lucid (bsd3, library, web)Artyom
cheapskate-terminal10.0Initial project template from stack (bsd3, library, program, web)yamadapc
check-email90.0Confirm 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
checked40.0Bounds-checking integer types. (bsd3, data, library)AntoineLatter
checkers692.0Check properties on standard classes and data structures. (bsd3, library, testing)ConalElliott
chesshs70.0Simple library for validating chess moves and parsing PGN files (bsd3, game, library)ArnoVanLumig
chevalier-common20.0Query interface for Chevalier (bsd3, library, other)fractalcat
chitauri20.0Helper for the Major System (bsd3, program, web)marcusbuffett
chp452.0An 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-plus160.0A set of high-level concurrency utilities built on Communicating Haskell Processes (bsd3, concurrency, library)NeilBrown
chp-spec20.0A 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
chronograph30.0measure timings of data evaluation (bsd3, library, testing)JohnLato
chronologique40.0Time to manipulate time (bsd3, library, text)AndrewCowie
chronos80.0A performant time library (bsd3, library, web)andrewthad
chu2100.0FFI for Chu2 Agda Web Server Interface (bsd3, library, web)JinjingWang
church-pair60.0Church encoded pair (bsd3, data, library)mat8913
cil120.0An interface to CIL. (bsd3, language, library)TomHawkins
cinvoke30.0A binding to cinvoke. (bsd3, foreign, library)RemiTurk
cipher-aes (deprecated in favor of cryptonite)1050.0Fast AES cipher implementation with advanced mode of operations (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cipher-aes128430.0AES and common modes using AES-NI when available. (benchmark, bsd3, cryptography, library)ThomasDuBuisson
cipher-blowfish (deprecated in favor of cryptonite)230.0Blowfish cipher (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cipher-camellia200.0Camellia block cipher primitives (benchmark, bsd3, cryptography, library)VincentHanquez
cipher-des260.0DES and 3DES primitives (benchmark, bsd3, cryptography, library)VincentHanquez
cipher-rc4 (deprecated in favor of cryptonite)320.0Fast RC4 cipher implementation (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cipher-rc560.0Pure RC5 implementation (bsd3, cryptography, library)FinnEspenGundersen
circ70.0A Compiler IR Compiler. (bsd3, compiler, language, library)TomHawkins
circle-packing312.0Simple heuristic for packing discs of varying radii in a circle (bsd3, library, optimisation)JoachimBreitner
citation-resolve170.0convert document IDs such as DOI, ISBN, arXiv ID to bibliographic reference. (bsd3, library, text)TakayukiMuranushi
citeproc-hs290.0A Citation Style Language implementation in Haskell (bsd3, library, text)AndreaRossato
cjk30.0Data about Chinese, Japanese and Korean characters and languages (bsd3, library, text)MaxBolingbroke
clash (deprecated in favor of clash-ghc)280.0CAES Language for Synchronous Hardware (CLaSH) (bsd3, deprecated, hardware, language, library)ChristiaanBaaij
clash-multisignal60.0 (bsd3, hardware, library)ralu
classy-influxdb-simple140.0Super simple InfluxDB package in Classy-MTL style (bsd3, database, library)schalmers
classyplate90.0Fuseable type-class based generics (bsd3, data, library)lazac
clay320.0CSS preprocessor as embedded Haskell. (bsd3, graphics, library, web)SebastiaanVisser, seanparsons
clckwrks600.0A secure, reliable content management system (CMS) and blogging platform (bsd3, clckwrks, library)JeremyShaw
clckwrks-cli180.0a command-line interface for adminstrating some aspects of clckwrks (bsd3, clckwrks, program)JeremyShaw
clckwrks-dot-com140.0clckwrks.com (bsd3, clckwrks, program)JeremyShaw
clckwrks-plugin-bugs210.0bug tracking plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-ircbot270.0ircbot plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-mailinglist50.0mailing list plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-media400.0media plugin for clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-plugin-page510.0support for CMS/Blogging in clckwrks (bsd3, clckwrks, library)JeremyShaw
clckwrks-theme-bootstrap180.0simple 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-bootstrap30.0geo bootstrap based template for clckwrks (bsd3, clckwrks, library)JeremyShaw
clean-home80.0Keep your home dir clean by finding old conf files (bsd3, program, utils)IvanPerez, keera_studios_ci
clean-unions50.0Open unions without need for Typeable (bsd3, data, library)FumiakiKinoshita
clevercss140.0A CSS preprocessor (bsd3, library, program, text)GeorgBrandl
cli130.0Command Line Interface (bsd3, cli, library)VincentHanquez, nicolasdp
clifford140.0A Clifford algebra library (benchmark, bsd3, library, math, numerical, program)spacekitteh
clipper20.0Haskell API to clipper (2d polygon union/intersection/xor/clipping API) (algebra, bsd3, library)ChetanTaralekar
clit540.0Post tweets from stdin (bsd3, library, program, web)vmchale
cloben70.0Clone and benchmark Haskell cabal projects (benchmarking, bsd3, program)sgraf812
clock18862.5High-resolution clock functions: monotonic, realtime, cputime. (bsd3, library, system)CetinSert
clock-extras80.0A couple functions that probably should be in the 'clock' package (bsd3, library, web)JonathanFischoff
clogparse50.0Parse IRC logs such as the #haskell logs on tunes.org (bsd3, irc, language, library, text)KeeganMcAllister
cloud-haskell60.0The Cloud Haskell Application Platform (bsd3, control, library)FacundoDominguez, TimWatson
cloudfront-signer30.0CloudFront URL signer (bsd3, library, network)ChrisDornan
clr-bindings70.0Glue between clr-host and clr-typed (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-host90.0Hosting the Common Language Runtime (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-inline90.0Quasiquoters for inline C# and F# (.net, benchmark, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-marshal90.0Marshaling for the clr (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-typed70.0A strongly typed Haskell interface to the CLR type system (.net, bsd3, clr, ffi, language, library)PepeIborra, TimMatthews
clr-win-linker40.0A GHC linker wrapper tool to workaround a GHC >8.2 bug (.net, bsd3, clr, ffi, language, program)PepeIborra, TimMatthews
cltw40.0Command line Twitter utility (bsd3, console, program, utils)DinoMorelli
clua60.0C to Lua data wrapper generator (bsd3, language, program)TomSchouten
cluss50.0simple alternative to type classes (bsd3, constraints, library, type-system)Kinokkory
cmark3642.0Fast, accurate CommonMark (Markdown) parser and renderer (benchmark, bsd3, library, text)JohnMacFarlane
cmark-gfm270.0Fast, accurate GitHub Flavored Markdown parser and renderer (benchmark, bsd3, library, text)kivikakk
cmark-highlight60.0Code highlighting for cmark (bsd3, library, text)Artyom
cmark-lucid60.0Use cmark with Lucid (bsd3, library, web)Artyom
cmark-patterns70.0Pattern synonyms for cmark (bsd3, library, parsing, text)Artyom
cmark-sections230.0Represent 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
cmdargs17092.0Command line argument processing (bsd3, console, library)NeilMitchell
cmdargs-browser60.0Helper to enter cmdargs command lines using a web browser (bsd3, console, program)NeilMitchell
cmdlib250.0a library for command line parsing & online help (bsd3, library, system)PetrRockai
cml90.0Events and Channels as in Concurrent ML (bsd3, concurrency, library)BenFranksen
cmonad100.0A library for C-like programming (bsd3, language, library)LennartAugustsson
cmph20.0low level interface to CMPH (bsd3, data, data-structures, library)MarkWotton
cnc-spec-compiler40.0Compiler/Translator for CnC Specification Files. (bsd3, compilers-interpreters, parallelism, program)RyanNewton
code-builder50.0Simple system for generating code. (bsd3, data, library)AdamBergmark, ErikHesselink, mbrock
code-page3362.0Windows code page library for Haskell (bsd3, library, system)ryanglscott
codec122.0Simple bidirectional serialization (bsd3, data, library)PatrickChilton
codec-libevent (deprecated)80.0Cross-platform structure serialisation (bsd3, data, deprecated, library, parsing, program)AdamLangley
codec-mbox30.0A library to read and write mailboxes in mbox format (bsd3, codec, library)NicolasPouillard
codecov-haskell70.0Codecov.io support for Haskell. (bsd3, control, library, program)killy971
codemonitor20.0Tool that automatically runs arbitrary commands when files change on disk. (bsd3, program, tool)RickardLindberg
codepad22.0Submit and retrieve paste output from CodePad.org. (bsd3, library, web)ChrisDone, TheKing
codo-notation50.0A notation for comonads, analogous to the do-notation for monads. (bsd3, language, library)DominicOrchard
cofunctor (deprecated in favor of contravariant)40.0DEPRECATED: use the "contravariant" package (bsd3, data, deprecated, library)BrandonSimmons
coincident-root-loci50.0Equivariant 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
colchis70.0Rudimentary JSON-RPC 2.0 client over raw TCP. (bsd3, library, network)DanielDiazCarrete
cold-widow32.0File transfer via QR Codes. (bsd3, library, program, utility)mihaigiurgeanu
collada-output130.0Generate animated 3d objects in COLLADA (bsd3, graphics, library, program)AndyGill, TillmannVogt
collada-types60.0Data exchange between graphic applications (bsd3, graphics, library)AndyGill, TillmannVogt
collapse-util20.0utility for collapsing adjacent writes (bsd3, concurrency, program)MarkWotton
collections70.0Useful standard collections types and related functions. (bsd3, data-structures, library)JeanPhilippeBernardy, JohannesWaldmann
collections-api30.0API for collection data structures. (bsd3, data-structures, library)JeanPhilippeBernardy
collections-base-instances40.0Useful standard collections types and related functions. (bsd3, data-structures, library)JeanPhilippeBernardy
colonnade232.0Generic types and functions for columnar encoding and decoding (bsd3, library, web)andrewthad
colorize-haskell60.0Highligt Haskell source (bsd3, development, library, program)IavorDiatchki
colorless570.0Colorless (bsd3, library, web)jxv
colors100.0A type for colors (bsd3, data, library)FumiakiKinoshita
colour-accelerate330.0Working with colours in Accelerate (bsd3, data, graphics, library)TrevorMcDonell
coltrane10.0A jazzy, minimal web framework for Haskell, inspired by Sinatra. (bsd3, library, web)wellecks
columbia260.0Enhanced serialization for media that support seeking. (bsd3, library, serialization)JamesCandy
com110.0Haskell COM support library (bsd3, ffi)KidoTakahiro, SigbjornFinne
comark270.0Commonmark processing in pure haskell. (bsd3, library, program, text)
comark-html270.0Commonmark (markdown) to HTML renderer. (bsd3, library, text)
comark-parser280.0Parser for Commonmark (markdown) (bsd3, library, text)
comark-syntax280.0Definitions of AST that represents a Commonmark (markdown) document. (bsd3, library, text)
combinat300.0Generate and manipulate various combinatorial objects. (bsd3, library, math)BalazsKomuves
combinat-diagrams40.0Graphical representations for various combinatorial objects (bsd3, library, math)BalazsKomuves
combinator-interactive30.0SKI Combinator interpreter (bsd3, language, library, program)FumiakiKinoshita
combinatorics (deprecated in favor of exact-combinatorics)30.0Efficient computation of common combinatoric functions. (bsd3, deprecated, library, math, statistics)WrenThornton
combobuffer20.0Various buffer implementations (bsd3, data, library)JohnLato
comfort-graph100.0Graph structure with type parameters for nodes and edges (bsd3, data, library)HenningThielemann
comic40.0A format for describing comics. (bsd3, data, library)davean
command (deprecated in favor of shake)30.0Conveniently run shell commands (bsd3, deprecated, library, system)NiklasHambuechen
command-qq70.0Quasiquoters for external commands (bsd3, library, system)MatveyAksenov
commander10.0pattern matching against string based commands (bsd3, library, program, text)jsdw
commodities80.0Library for working with commoditized amounts and price histories (bsd3, finance, library)JohnWiegley
commsec130.0Provide communications security using symmetric ephemeral keys (bsd3, cryptography, library)ThomasDuBuisson
commsec-keyexchange100.0Key agreement for commsec. (bsd3, library, network)ThomasDuBuisson
comonad17432.5Comonads (bsd3, comonads, control, library)EdwardKmett, EricMertens, ryanglscott
comonad-extras440.0Exotic comonad transformers (bsd3, comonads, control, library)EdwardKmett
comonad-transformers (deprecated in favor of comonad)1170.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)EdwardKmett
comonads-fd (deprecated in favor of comonad)610.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)EdwardKmett
compact60.0Non-GC'd, contiguous storage for immutable data structures (bsd3, data, library)EdwardYang
compact-map40.0Compact Data.Map implementation using Data.Binary (bsd3, data, library)DavidHimmelstrup
compact-mutable30.0Mutable arrays living on the compact heap (bsd3, library, web)andrewthad
compact-socket20.0Socket functions for compact normal form. (bsd3, library, network)EdwardYang
compact-string (deprecated in favor of text)20.0Fast, packed and strict strings with Unicode support, based on bytestrings. (bsd3, data, deprecated, library)TwanVanLaarhoven
compact-string-fix50.0Same as compact-string except with a small fix so it builds on ghc-6.12 (bsd3, data, library)TonyHannan
compactable82.0A generalization for containers that can be stripped of Nothings. (bsd3, control, library)fresheyeball
compactmap150.0A read-only memory-efficient key-value store. (bsd3, data, library)SimonMarechal
compare-type40.0compare types of any kinds in haskell (bsd3, dependent-types, library)Kinokkory
compdata340.0Compositional Data Types (benchmark, bsd3, generics, library)PatrickBahr
compdata-automata30.0Tree automata on Compositional Data Types (benchmark, bsd3, generics, library)PatrickBahr
compdata-dags20.0Compositional Data Types on DAGs (bsd3, generics, library)PatrickBahr
compdata-param60.0Parametric Compositional Data Types (bsd3, generics, library)PatrickBahr
compensated192.0Compensated floating-point arithmetic (bsd3, library, numeric)EdwardKmett, EricMertens, ryanglscott
complex-generic50.0complex numbers with non-mandatory RealFloat (bsd3, library, math)ClaudeHeilandAllen
complexity100.0Empirical algorithmic complexity (bsd3, library, testing)RoelVanDijk
composable-associations50.0Types and helpers for composing types into a single larger key-value type. (bsd3, library, web)smprts
composable-associations-aeson50.0Aeson ToJSON/FromJSON implementation for the types of composable-associations (bsd3, library, web)smprts
compose-trans30.0Composable monad transformers (bsd3, library, monads)MiguelMitrofanov
composite-aeson510.0JSON for Vinyl/Frames records (bsd3, library, records)dridus, asariley
composite-aeson-refined430.0composite-aeson support for Refined from the refined package (bsd3, library, records)dridus, asariley
composite-base530.0Shared utilities for composite-* packages. (bsd3, library, records)dridus, asariley
composite-ekg500.0EKG Metrics for Vinyl/Frames records (bsd3, library, records)dridus, asariley
composite-opaleye530.0Opaleye SQL for Frames records (bsd3, library, records)dridus, asariley
composition130.0Combinators for unorthodox function composition (bsd3, data, library)DanBurton
composition-extra140.0Combinators for unorthodox structure composition (bsd3, data, library)athanclark
composition-prelude240.0Higher-order function combinators (bsd3, control, data, library)vmchale
composition-tree90.0Composition trees for arbitrary monoids. (bsd3, data, library)LiamOConnorDavis
compressed222.0Compressed containers and reducers (bsd3, compression, data, library, mapreduce)EdwardKmett
compstrat30.0Strategy combinators for compositional data types (bsd3, generics, language, library)JamesKoppel
comptrans60.0Automatically converting ASTs into compositional data types (bsd3, data, generics, library)JamesKoppel
computational-algebra322.0Well-kinded computational algebra library, currently supporting Groebner basis. (benchmark, bsd3, library, math)HiromiIshii
computations20.0Advanced notions of computation (bsd3, control, library)WolfgangJeltsch
concatenative400.0A library for postfix control flow. (bsd3, control, library)SamAnklesaria
conceit130.0Concurrent actions that may fail with a value. (bsd3, concurrency, library)DanielDiazCarrete
concise110.0Utilities for Control.Lens.Cons (bsd3, data, lenses, library)frasertweedale
concorde30.0Simple 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-typerep60.0Binary and Hashable instances for TypeRep (bsd3, data, library)ReinerPope
concurrent-barrier90.0Simple thread barriers (bsd3, concurrency, library)JeremyFitzhardinge
concurrent-dns-cache110.0Concurrent DNS cache (bsd3, library, network, program)KazuYamamoto
concurrent-extra3860.0Extra concurrency primitives (bsd3, concurrency, library)BasVanDijk, RoelVanDijk
concurrent-machines200.0Concurrent networked stream transducers (benchmark, bsd3, concurrency, control, library)AnthonyCowley
concurrent-sa60.0Concurrent simulated annealing system. (algorithms, bsd3, concurrency, library)LouisWasserman
concurrent-split70.0MVars and Channels with distinguished input and output side (bsd3, concurrent, library)HenningThielemann
concurrent-supply252.0A fast concurrent unique identifier supply with a pure API (bsd3, concurrency, library, parallelism)EdwardKmett
concurrent-utilities40.0More 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
cond370.0Basic conditional and boolean operators with monadic variants. (bsd3, control, library, logic, monad)AdamCurtis
condor (deprecated)10.0Information retrieval library (bsd3, deprecated, library, program, search, text)klangner
condorcet30.0Library for Condorcet voting (bsd3, data, library)GwernBranwen
conduit-audio400.0Combinators to efficiently slice and dice audio streams (bsd3, library, sound)mtolly
conduit-audio-lame440.0conduit-audio interface to the LAME MP3 library (bsd3, library, sound)mtolly
conduit-audio-samplerate380.0conduit-audio interface to the libsamplerate resampling library (bsd3, library, sound)mtolly
conduit-audio-sndfile380.0conduit-audio interface to the libsndfile audio file library (bsd3, library, sound)mtolly
conduit-connection80.0Conduit source and sink for Network.Connection. (bsd3, conduit, library, network)slomo
conduit-iconv150.0Conduit for character encoding conversion. (benchmark, bsd3, conduit, library, text)slomo
conduit-merge80.0Merge multiple sorted conduits (bsd3, conduit, library)cblp
conduit-network-stream30.0A base layer for network protocols using Conduits (bsd3, library, network)NilsSchweinsberg
conduit-resumablesink40.0Allows conduit to resume sinks to feed multiple sources into it. (bsd3, conduit, data, library)AndrewMiller
conduit-throttle300.0Throttle Conduit Producers (bsd3, data, library)mtesseract
conduit-tokenize-attoparsec30.0Conduits for tokenizing streams. (bsd3, conduit, data, library, program)newhoggy, haskellworks
conf20.0Parser for Haskell-based configuration files. (bsd3, configuration, library, parsing)carymrobbins
config-ini220.0A library for simple INI-based configuration files. (bsd3, configuration, library)gdritter
configuration40.0Simple data type for application configuration. (bsd3, data, library)HiromiIshii
configurator662.0Configuration management (bsd3, configuration, data, library)BryanOSullivan
configurator-export50.0Pretty printer and exporter for configurations from the "configurator" library. (bsd3, configuration, data, library)jle
configurator-ng110.0The next generation of configuration management (bsd3, configuration, data, library)LeonSmith
confsolve250.0A command line tool for resolving conflicts of file synchronizers. (bsd3, program, utils)DanielTrstenjak
conjugateGradient110.0Sparse matrix linear-equation solver (bsd3, library, math)LeventErkok
conjure40.0A BitTorrent client (bsd3, library, network, program)GwernBranwen
connection10610.0Simple and easy network connections API (bsd3, library, network)VincentHanquez
connection-pool100.0Connection pool built on top of resource-pool and streaming-commons. (bsd3, data, library, network)PeterTrsko
console-program302.0Interpret the command line and a config file as commands and options (bsd3, console, library, system)AriePeterson
const-math-ghc-plugin80.0Compiler plugin for constant math elimination (bsd3, compiler-plugin, library)ConradParker
constrained-normal50.0Normalised Deep Embeddings for Constrained Type-Class Instances (bsd3, control, library)NeilSculthorpe
constraint-classes110.0Various typeclasses using ConstraintKinds (bsd3, library, unclassified)guaraqe
constructible30.0Exact computation with constructible real numbers (bsd3, library, math)AndersKaseorg
constructive-algebra230.0A library of constructive algebra. (algebra, bsd3, library, math)AndersMortberg
consul-haskell100.0A consul client for Haskell (bsd3, library, network)sseveran
consumers260.0Concurrent PostgreSQL data consumers (bsd3, concurrency, database, library)MikhailGlushenkov, arybczak, jonathanjouty_scrive, trin_cz
container-builder30.0Functions for building containers from a known number of elements (bsd3, library, web)andrewthad
container-classes (deprecated)30.0Generic classes for interacting with different container types (bsd3, data-structures, deprecated, library)IvanMiljenovic
containers5812.75Assorted concrete container types (benchmark, bsd3, data-structures, library)EdwardKmett, JohanTibell, MilanStraka, WrenThornton, dfeuer, WrenRomano
containers-benchmark100.0Extensive benchmark suite for containers package. (benchmarking, bsd3, program)MilanStraka
containers-deepseq (deprecated in favor of containers)30.0Provide orphan NFData instances for containers as needed. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
containers-unicode-symbols290.0Unicode alternatives for common functions and operators (bsd3, library, unclassified)RoelVanDijk
context-free-grammar30.0Basic algorithms on context-free grammars (bsd3, language, library)nedervold
continue30.0Monads with suspension and arbitrary-spot reentry (bsd3, control, library)ErtugrulSoeylemez, esz
continued-fraction150.0Types and functions for working with continued fractions in Haskell (bsd3, library, math)
contravariant16380.0Contravariant functors (bsd3, control, data, library)EdwardKmett, EricMertens
control-bool90.0Useful combinators for boolean expressions (bsd3, control, library)FumiakiKinoshita
control-dotdotdot80.0Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`. (bsd3, control, library)erisco
control-event290.0Event scheduling system. (bsd3, control, library)ThomasDuBuisson
control-monad-attempt (deprecated)130.0Monad transformer for attempt. (deprecated) (bsd3, data, deprecated, failure, library)MichaelSnoyman, NicolasPouillard
control-monad-loop40.0Simple monad transformer for imperative-style loops (bsd3, control, library)JoeyAdams
control-monad-queue140.0Reusable corecursive queues, via continuations. (bsd3, control, library)LeonSmith
control-timeout (deprecated)70.0Timeout handling (bsd3, control, deprecated, library)AdamLangley
contstuff (deprecated)460.0Fast, easy to use CPS-based monad transformers (bsd3, control, deprecated, library, monads)ErtugrulSoeylemez, esz
contstuff-monads-tf (deprecated)80.0ContStuff instances for monads-tf transformers (deprecated) (bsd3, control, deprecated, library, monads)ErtugrulSoeylemez, esz
contstuff-transformers (deprecated)40.0Deprecated interface between contstuff 0.7.0 and the transformers package (bsd3, control, deprecated, library, monads)ErtugrulSoeylemez, esz
convertible1002.0Typeclasses and instances for converting between types (bsd3, data, library)ErikHesselink, JohnGoerzen, NicolasWu
convertible-text (deprecated)400.0Typeclasses and instances for converting between types (deprecated) (bsd3, data, deprecated, failure)MichaelSnoyman
cookbook310.0Tiered general-purpose libraries with domain-specific applications. (bsd3, development, library)NatePisarski
coordinate270.0A representation of latitude and longitude (bsd3, development, library)TonyMorris
copilot480.0A stream DSL for writing embedded C programs. (bsd3, embedded, language, library, program)LeePike, agoodloe
copilot-c99140.0A compiler for Copilot targeting C99. (bsd3, embedded, language, library, program)LeePike, agoodloe
copilot-cbmc120.0Copilot interface to a C model-checker. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-core170.0An intermediate representation for Copilot. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-language160.0A Haskell-embedded DSL for monitoring hard real-time distributed systems. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-libraries120.0Libraries for the Copilot language. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-sbv190.0A compiler for CoPilot targeting SBV. (bsd3, embedded, language, library)LeePike, agoodloe
copilot-theorem60.0k-induction for Copilot. (bsd3, embedded, language, library)LeePike, agoodloe
copr40.0Haskell interface to the Fedora Copr system (bsd3, fedora, library, web)RickyElrod
core140.0External core parser and pretty printer. (bsd3, language, library)DavidHimmelstrup
core-haskell60.0A subset of Haskell using in UCC for teaching purpose (bsd3, compilers-interpreters, language, program)happlebao
corebot-bliki30.0A bliki written using yesod. Uses pandoc to process files stored in git. (bsd3, library, program, yesod)CoreyOConnor
coroutine-object120.0Object-oriented programming realization using coroutine (bsd3, control, library)IanWooKim
couchdb-conduit400.0Couch DB client library using http-conduit and aeson (bsd3, conduit, database, library)AlexanderDorofeev
couchdb-enumerator130.0Couch DB client library using http-enumerator and aeson (bsd3, database, library, web)JohnLenz
count30.0Bijective mappings between values and possibly infinite prefixes of [0..] (bsd3, data, library)Maxdamantus
countable70.0Countable, Searchable, Finite, Empty classes (bsd3, data, library)AshleyYakeley
country140.0Country data type and functions (bsd3, library, web)andrewthad
country-codes60.0ISO 3166 country codes and i18n names. (bsd3, data, library)FelipeLessa, JeanPhilippeMoresmau
court20.0Simple and flexible CI system (bsd3, development, program)thoferon
cplex-hs72.0high-level CPLEX interface (bsd3, library, math)stefanjhlk
cplusplus-th12.0C++ Foreign Import Generation (bsd3, foreign, library)MaxwellSwadling
cprng-aes (deprecated in favor of cryptonite)960.0Crypto Pseudo Random Number Generator using AES in counter mode. (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
cpsa3142.0Symbolic cryptographic protocol analyzer (bsd3, cryptography, program)JohnRamsdell, mliskov
cpu272.0Cpu information and properties helpers. (bsd3, data, library)VincentHanquez
cpuperf40.0Modify the cpu frequency on OpenBSD systems (bsd3, program, system)DonaldStewart
crackNum570.0Crack various integer, floating-point data formats (bsd3, library, program, tools)LeventErkok
crawlchain140.0Simulation user crawl paths (bsd3, library, web)axm
crc1670.0Calculate the crc16-ccitt. (bsd3, cryptography, library)JorisPutcuyps
crc16-table40.0Compute CRC16 checksums using a lookup table. (bsd3, library, text)KeeganMcAllister
crdt312.0Conflict-free replicated data types (bsd3, distributed-systems, library)cblp
creatur880.0Framework for artificial life experiments. (ai, bsd3, library)AmyDeBuitleir
crf-chain130.0First-order, linear-chain conditional random fields (bsd3, library, math)JakubWaszczuk
crf-chain1-constrained90.0First-order, constrained, linear-chain conditional random fields (bsd3, library, math)JakubWaszczuk
crf-chain2-generic30.0Second-order, generic, constrained, linear conditional random fields (bsd3, library, math)JakubWaszczuk
crf-chain2-tiers80.0Second-order, tiered, constrained, linear conditional random fields (bsd3, library, natural-language-processing)JakubWaszczuk
critbit110.0Crit-bit maps and sets (benchmark, bsd3, data, library)BryanOSullivan
criterion2552.25Robust, reliable performance measurement and analysis (benchmarking, bsd3, development, library, performance, program, testing)BryanOSullivan, RyanNewton, ryanglscott
criterion-to-html60.0Convert criterion output to HTML reports (bsd3, development, program)JasperVanDerJeugt
crjdt-haskell110.0A Conflict-Free Replicated JSON Datatype for Haskell (bsd3, data, library)amarpotghan
crockford90.0An implementation of Douglas Crockford's base32 encoding. (bsd3, codec, library)HenryBucklow
cruncher-types (deprecated)50.0Request and Response types for Eval.so's API (bsd3, deprecated, eval.so, library)RickyElrod
crypt-sha51260.0Pure Haskell implelementation for GNU SHA512 crypt algorithm (bsd3, data, library)phadej
crypto-api2702.0A generic interface for cryptographic operations (bsd3, cryptography, data, library)ThomasDuBuisson
crypto-api-tests60.0A test framework and KATs for cryptographic operations. (bsd3, cryptography, data, library)ThomasDuBuisson
crypto-cipher-benchmarks60.0Generic cryptography cipher benchmarks (bsd3, cryptography, library)VincentHanquez
crypto-cipher-tests130.0Generic cryptography cipher tests (bsd3, cryptography, library)VincentHanquez
crypto-cipher-types820.0Generic cryptography cipher types (bsd3, cryptography, library)VincentHanquez
crypto-classical70.0An educational tool for studying classical cryptography schemes. (bsd3, cryptography, library)fosskers
crypto-conduit340.0Conduit interface for cryptographic operations (from crypto-api). (bsd3, conduit, cryptography, library)FelipeLessa, MichaelSnoyman
crypto-enigma272.0An Enigma machine simulator with display. (bsd3, cryptography, education, library)Orome
crypto-multihash90.0Multihash library on top of cryptonite crypto library (bsd3, cryptography, library, program)mseri
crypto-numbers410.0Cryptographic numbers: functions and algorithms (benchmark, bsd3, cryptography, library)VincentHanquez
crypto-pubkey (deprecated in favor of cryptonite)420.0Public Key cryptography (benchmark, bsd3, cryptography, deprecated, library)VincentHanquez
crypto-pubkey-types940.0Generic cryptography Public keys algorithm types (bsd3, cryptography, library)VincentHanquez
crypto-random (deprecated in favor of cryptonite)830.0Simple cryptographic random related types (bsd3, cryptography, deprecated, library)VincentHanquez
crypto-random-api (deprecated in favor of crypto-random)160.0Simple random generators API for cryptography related code (bsd3, cryptography, deprecated, library)VincentHanquez
crypto-rng60.0Cryptographic random number generator. (bsd3, crypto, library)MikhailGlushenkov, jonathanjouty_scrive
crypto-totp30.0Provides generation and verification services for time-based one-time keys. (bsd3, cryptography, library)JeffShaw
cryptocipher730.0Symmetrical block and stream ciphers. (bsd3, cryptography, library)VincentHanquez
cryptoconditions20.0Interledger Crypto-Conditions (bsd3, crypto, finance, library, network)ssadler
cryptohash3482.0collection of crypto hashes, fast, pure and practical (benchmark, bsd3, cryptography, data, library)VincentHanquez
cryptohash-conduit290.0cryptohash conduit (bsd3, conduit, cryptography, library)VincentHanquez
cryptohash-cryptoapi220.0Crypto-api interfaces for cryptohash (bsd3, cryptography, library)VincentHanquez
cryptohash-md55080.0Fast, pure and practical MD5 implementation (benchmark, bsd3, cryptography, data, library)HerbertValerioRiedel
cryptohash-sha15190.0Fast, pure and practical SHA-1 implementation (benchmark, bsd3, cryptography, data, library)HerbertValerioRiedel
cryptohash-sha2565390.0Fast, pure and practical SHA-256 implementation (benchmark, bsd3, cryptography, data, library)AustinSeipp, HerbertValerioRiedel
cryptohash-sha51240.0Fast, pure and practical SHA-512 implementation (benchmark, bsd3, cryptography, data, library)HerbertValerioRiedel
cryptol290.0Cryptol: The Language of Cryptography (bsd3, language, library, program)AaronTomb, AdamFoltzer, IavorDiatchki, TrevorElliott
cryptonite13302.25Cryptography Primitives sink (benchmark, bsd3, cryptography, library)LukeTaylor, VincentHanquez
cryptonite-conduit490.0cryptonite conduit (bsd3, conduit, cryptography, library)MichaelSnoyman, VincentHanquez
cryptonite-openssl3380.0Crypto stuff using OpenSSL cryptographic library (bsd3, cryptography, library)VincentHanquez
crystalfontz20.0Control Crystalfontz LCD displays. (bsd3, hardware, library, system, user-interfaces)KeeganMcAllister
cse-ghc-plugin10.0Compiler plugin for common subexpression elimination (bsd3, compiler-plugin, library)AustinSeipp
csound-catalog230.0a gallery of Csound instruments. (bsd3, library, music)AntonKholomiov
csound-expression752.0library to make electronic music (bsd3, library, music, sound)AntonKholomiov
csound-expression-dynamic310.0dynamic core for csound-expression library (bsd3, library, music, sound)AntonKholomiov
csound-expression-opcodes130.0opcodes for the library csound-expression (bsd3, library, music, sound)AntonKholomiov
csound-expression-typed440.0typed core for the library csound-expression (bsd3, library, music, sound)AntonKholomiov
csound-sampler210.0A musical sampler based on Csound (bsd3, library, music)AntonKholomiov
cspmchecker90.0A command line type checker for CSPM files. (bsd3, concurrency, program)ThomasGibsonRobinson
cspretty10.0AST and pretty printer for CSPm (bsd3, language, library)ccasin
css (deprecated)40.0Minimal monadic CSS DSL. (bsd3, deprecated, language, library)
csv-conduit330.0A flexible, fast, conduit-based CSV parser library for Haskell. (bsd3, conduit, csv, data, library, text)MichaelXavier, OzgunAtaman
csv-enumerator180.0A flexible, fast, enumerator-based CSV parser library for Haskell. (bsd3, data, library)OzgunAtaman
csv-to-qif70.0A small program that will read csv files and create qif files (bsd3, console, program, text)palo
ctemplate (deprecated)50.0Binding to the Google ctemplate library (bsd3, deprecated, library, text)AdamLangley
ctkl30.0packaging of Manuel Chakravarty's CTK Light for Hackage (bsd3, library, text)MarkWotton
cube40.0Cubic DSL for 3D printing (bsd3, language, library)junjihashimoto
cubicbezier400.0Efficient manipulating of 2D cubic bezier curves. (bsd3, geometry, graphics, library, typography)KristofBastiaensen
cubicspline72.0Natural cubic spline interpolation. (algorithms, bsd3, library, math)GershomBazerman
cublas120.0FFI bindings to the CUDA BLAS library (bsd3, foreign, library)TrevorMcDonell, bmsherman
cuda590.0FFI binding to the CUDA interface for programming NVIDIA GPUs (bsd3, foreign, library, program)TrevorMcDonell
cudd80.0Bindings to the CUDD binary decision diagrams library (bsd3, data, library)adamwalker
cue-sheet120.0Support for construction, rendering, and parsing of CUE sheets (audio, bsd3, library)mrkkrp
cufft160.0Haskell bindings for the CUFFT library (bsd3, foreign, library)RobEverest, TrevorMcDonell
curl1292.0Haskell binding to libcurl (bsd3, library, network)DonaldStewart, EricMertens, IavorDiatchki, SigbjornFinne
curl-aeson70.0Communicate with HTTP service using JSON (bsd3, json, library, network, web)JoelLehtonen
currencies170.0Currencies representation, pretty printing and conversion (bsd3, data, library)alx741, DanielCampoverde
currency-convert32.0Typesafe currency conversion (bsd3, data, library)pigworts2
curryer150.0A simple HTTP server framework (bsd3, library, web)
cursedcsv52.0Terminal tool for viewing tabular data (application, bsd3, program)GershomBazerman
curve2551970.0Fast implementations of the curve25519 elliptic curve primitives. (bsd3, library, math)AdamWick
cusolver60.0FFI bindings to CUDA Solver, a LAPACK-like library (bsd3, foreign, library)TrevorMcDonell
cusparse70.0FFI bindings to the CUDA Sparse BLAS library (bsd3, foreign, library)TrevorMcDonell
cutter40.0Cut files according to a position list (bsd3, console, program)HenningThielemann
cypher80.0Haskell bindings for the neo4j "cypher" query language (bsd3, database, library)SamAnklesaria
czipwith110.0CZipWith class and deriving via TH (bsd3, data, library)lspitzner
d-bus220.0Permissively licensed D-Bus client library (bsd3, desktop, library, network, program)PhilippBalzarek
d3js20.0Declarative visualization on a web browser with DSL approach. (bsd3, graphics, library)nebuta
dag80.0Compile-time, type-safe directed acyclic graphs. (bsd3, library, unclassified)athanclark
dapi10.0Prints a series of dates (bsd3, console, program)OmariNorman
darcs-benchmark290.0Comparative benchmark suite for darcs. (bsd3, program, testing)EricKow, PetrRockai
darcs-fastconvert90.0Import/export git fast-import streams to/from darcs. (bsd3, development, program)PetrRockai
darcs-graph120.0Generate graphs of darcs repository activity (bsd3, distribution, program)DonaldStewart, IsaacJones
darcs-scripts30.0Shell scripts for support of darcs workflow (bsd3, development, library)HenningThielemann
darcs2dot (deprecated in favor of darcs)20.0Outputs dependencies of darcs patches in dot format. (bsd3, deprecated, development, program)SoenkeHahn
data-accessor4190.0Utilities for accessing and manipulating fields of records (bsd3, data, library)HenningThielemann, LukePalmer
data-accessor-monads-fd110.0Use Accessor to access state in monads-fd State monad class (bsd3, data, library)HenningThielemann
data-accessor-monads-tf110.0Use Accessor to access state in monads-tf State monad type family (bsd3, data, library)HenningThielemann
data-accessor-mtl120.0Use Accessor to access state in mtl State monad class (bsd3, data, library)HenningThielemann
data-accessor-template790.0Utilities for accessing and manipulating fields of records (bsd3, data, library)HenningThielemann, LukePalmer
data-accessor-transformers550.0Use Accessor to access state in transformers State monad (bsd3, data, library)HenningThielemann
data-aviary120.0Combinator birds. (bsd3, combinators, library)StephenTetley
data-bword780.0Extra operations on binary words of fixed length (bsd3, data, library)MikhailVorozhtsov
data-category1750.0Category theory (bsd3, library, math)SjoerdVisscher
data-cell50.0Generic cellular data representation library (bsd3, data, library)patrykz
data-check70.0Library for checking and normalization of data (e.g. from web forms) (bsd3, data, library, web)mrkkrp
data-checked730.0Type-indexed runtime-checked properties (bsd3, data, library)MikhailVorozhtsov
data-clist790.0Simple functional ring type. (bsd3, data-structures, library)JohnVanEnk, jeremyjh
data-constructors160.0Generically compare data by their constructors (bsd3, data, library)
data-cycle50.0a cyclic doubly linked list (bsd3, data, library)TobiasBrandt
data-default14032.0A class for types with a default value (bsd3, data, library)LukasMai
data-default-class18240.0A class for types with a default value (bsd3, data, library)LukasMai
data-default-extra50.0A class for types with a default value. (bsd3, data, library)PeterTrsko
data-default-generics20.0A class for types with a default value (bsd3, data, library)jcristovao
data-default-instances-base1730.0Default instances for types in base (bsd3, data, library)LukasMai
data-default-instances-bytestring30.0Default instances for (lazy and strict) ByteString, Builder and ShortByteString. (bsd3, data, library)PeterTrsko
data-default-instances-case-insensitive30.0Default instance for CI type from case-insensitive package. (bsd3, data, library)PeterTrsko
data-default-instances-containers13370.0Default instances for types in containers (bsd3, data, library)LukasMai
data-default-instances-dlist13320.0Default instances for types in dlist (bsd3, data, library)LukasMai
data-default-instances-new-base60.0Default instances for types in newer versions of base package. (bsd3, data, library)PeterTrsko
data-default-instances-old-locale13230.0Default instances for types in old-locale (bsd3, data, library)LukasMai
data-default-instances-text30.0Default instances for (lazy and strict) Text and Text Builder. (bsd3, data, library)PeterTrsko
data-default-instances-unordered-containers30.0Default instances for unordered-containers. (bsd3, data, library)PeterTrsko
data-default-instances-vector30.0Default instances for types defined in vector package (bsd3, data, library)PeterTrsko
data-diverse400.0Extensible records and polymorphic variants. (benchmark, bsd3, data, library, records)louispan
data-diverse-lens60.0Isos & Lens for Data.Diverse.Many and Prisms for Data.Diverse.Which (bsd3, data, library, records)louispan
data-dword800.0Stick two binary words together to get a bigger one (bsd3, data, library)MikhailVorozhtsov
data-easy60.0Consistent set of utility functions for Maybe, Either, List and Monoids. (bsd3, data, library)jcristovao
data-elf70.0Executable and Linkable Format (ELF) data structures. (bsd3, data, library)MikhailVorozhtsov
data-emoticons70.0Combinator emoticons: data-aviary in the flavor of emoticons (bsd3, combinators, library)lbq
data-endian750.0Endian-sensitive data (bsd3, data, library)MikhailVorozhtsov
data-extend-generic30.0Extend Haskell data or newtype like in OOP languages (bsd3, data, library)YLiLarry
data-extra (deprecated)150.0None (bsd3, deprecated, library, unclassified)
data-filepath120.0A type safe file path data structure (bsd3, data, library)MaxwellSwadling, domdere
data-files-gen30.0Generate data-files Cabal file field from existing files (bsd3, library, program, tools)JeanPhilippeMoresmau
data-fin70.0Finite totally ordered sets (bsd3, data, library)WrenThornton
data-fin-simple30.0Simple integral finite set (bsd3, data, library)seagull
data-fix592.0Fixpoint data types (bsd3, data, library)AntonKholomiov
data-fix-cse90.0Common subexpression elimination for the fixploint types. (bsd3, data, library)AntonKholomiov
data-flags180.0A package for working with bit masks and flags in general. (bsd3, data, library)MikhailVorozhtsov
data-foldapp150.0Fold function applications. Framework for variadic functions. (bsd3, data, library)
data-fresh40.0Interface and functor transformers for fresh values (bsd3, control, library)StijnVanDrongelen
data-function-meld40.0Map the arguments and return value of functions. (bsd3, data, library)erisco
data-function-tacit30.0Write functions in tacit (pointless) style using Applicative and De Bruijn index notation. (bsd3, data, library)erisco
data-has130.0Simple extensible product (benchmark, bsd3, data, library)winterland
data-hash1290.0Combinators for building fast hashing functions. (bsd3, data, library)DanielGorin
data-interval920.0Interval datatype, interval arithmetic and interval-based containers (bsd3, data, library, math)MasahiroSakai
data-inttrie270.0A lazy, infinite trie of integers. (bsd3, data, library)LukePalmer, ThomasDuBuisson
data-ivar90.0Write-once variables with concurrency support (bsd3, concurrency, data, library)GregoryCrosswhite, LukePalmer
data-json-token30.0Json Token datatype (bsd3, data, json, library, program)newhoggy, haskellworks
data-kiln10.0Sculpt mutable recursive data with reference equality; bake it using a data kiln into an immutable lazy structure (bsd3, data, library)kwf
data-layout10.0Read/write arbitrary binary layouts to a "Data.Vector.Storable". (bsd3, data, library)JacobStanley
data-lens430.0Used to be Haskell 98 Lenses (bsd3, comonads, control, library)EdwardKmett, RussellOConnor
data-lens-fd200.0Lenses (bsd3, comonads, control, library)EdwardKmett, RussellOConnor
data-lens-ixset (deprecated in favor of data-store, tables, lens)50.0A Lens for IxSet (bsd3, comonads, control, data-structures, deprecated, library)DagOdenhall
data-lens-template420.0Utilities for Data.Lens (bsd3, data, library)EdwardKmett, JoelBurget, RussellOConnor
data-list-zigzag70.0A list but with a balanced enumeration of Cartesian product. (bsd3, data, library)erisco
data-memocombinators292.0Combinators for building memo tables. (bsd3, data, library)DmitryMalikov, LukePalmer, ThomasDuBuisson
data-msgpack252.0A Haskell implementation of MessagePack (benchmark, bsd3, data, library, program)iphydf
data-msgpack-types40.0A Haskell implementation of MessagePack. (bsd3, data, library)iphydf
data-named140.0Data types for named entities (bsd3, library, natural-language-processing)JakubWaszczuk
data-nat40.0data Nat = Zero | Succ Nat (bsd3, data, library, math)GaborLehel
data-object (deprecated in favor of aeson)330.0Represent hierachichal structures, called objects in JSON. (deprecated) (bsd3, data, deprecated, library)MichaelSnoyman
data-object-json (deprecated in favor of aeson)220.0Serialize JSON data to/from Haskell using the data-object library. (deprecated) (bsd3, deprecated, library, text)MichaelSnoyman
data-object-yaml (deprecated in favor of yaml)350.0Serialize data to and from Yaml files (deprecated) (bsd3, deprecated, library, web)MichaelSnoyman
data-or60.0A data type for non-exclusive disjunction. (bsd3, data, library)WrenThornton
data-ordlist612.25Set and bag operations on ordered lists (bsd3, data, library, list)LeonSmith
data-partition50.0A pure disjoint set (union find) data structure (bsd3, data, library)LukePalmer
data-pprint340.0Prettyprint and compare Data values (bsd3, library, testing, text)PeterDivianszky, lspitzner, GaborPali
data-quotientref30.0Reference cells that need two independent indices to be accessed. (bsd3, data, library)LukePalmer
data-ref60.0Unify STRef and IORef in plain Haskell 98 (bsd3, data, library)HenningThielemann
data-reify320.0Reify a recursive data structure into an explicit graph. (bsd3, data, language, library, parsing, reflection)AndyGill, ryanglscott
data-reify-cse50.0Common Sub-Expression Elimination for graphs generated by Data.Reify. (bsd3, data, language, library)SebastiaanVisser
data-rev20.0A typeclass for reversing order of contents. (bsd3, data, library)jxv
data-serializer510.0Common API for serialization libraries (bsd3, data, library)MikhailVorozhtsov
data-spacepart (deprecated in favor of spacepart)60.0Deprecated. Now called "spacepart". Space partitioning data structures. (bsd3, data, deprecated, library)CoreyOConnor
data-store70.0Type safe, in-memory dictionary with multidimensional keys. (benchmark, bsd3, data, library)PetrPilar
data-sword130.0Shorter binary words (bsd3, data, library)MikhailVorozhtsov
data-textual690.0Human-friendly textual representations. (bsd3, data, library, text)MikhailVorozhtsov
data-timeout120.064-bit timeouts of nanosecond precision (bsd3, concurrency, data, library)MikhailVorozhtsov
data-transform110.0Functions to transform data structures. (bsd3, data, library)JonasScholl
data-tree-print120.0Print Data instances as a nested tree (bsd3, library, pretty-printer)lspitzner
data-treify60.0Reify a recursive data structure into an explicit graph. (bsd3, data, language, library, parsing, reflection)ConalElliott
data-type40.0Basic type wrangling types and classes (bsd3, data, library, type-system)IainAlexander
data-util70.0utilities for handle data (bsd3, data, development, library, utils)KatsutoshiItoh
data-variant100.0A variant data type, useful for modeling dynamically-typed programming languages (bsd3, data, library)TobiasDammers
database-migrate90.0Database versioning and migration (experimental) (bsd3, database, library)MarkHibberd
database-study30.0Demonstrate how a database can be implemented the functional way (bsd3, database, library, monads)HenningThielemann
dataenc (deprecated in favor of sandi)660.0Data encoding library (bsd3, codec, deprecated, library)GracjanPolak, MagnusTherning
dataflow200.0Generate Graphviz documents from a Haskell representation. (bsd3, code-generation, compiler, graphs, library, program)owickstrom
datalog60.0An implementation of datalog in Haskell (bsd3, database, library, program)TristanRavitch
datarobot130.0Client for DataRobot API (bsd3, library, web)seanhess
date-cache150.0Date cacher (bsd3, library, system)KazuYamamoto
dates160.0Small library for parsing different dates formats. (bsd3, data, library)IlyaPortnov
dawg160.0Directed acyclic word graphs (bsd3, data, data-structures, library)JakubWaszczuk
dawg-ord152.0Directed acyclic word graphs (bsd3, data, data-structures, library)JakubWaszczuk
dbjava20.0Decompiler Bytecode Java (bsd3, jvm, library, program)CarlosGomez
dbm100.0A *simple* database migration tool. (bsd3, database, program)RickyElrod
dbmigrations300.0An implementation of relational database "migrations" (bsd3, database, library, program)JonathanDaugherty
dbmigrations-mysql10.0The dbmigrations tool built for MySQL databases (bsd3, database, library, program)JonathanDaugherty
dbmigrations-postgresql30.0The dbmigrations tool built for PostgreSQL databases (bsd3, database, program)JonathanDaugherty
dbmigrations-sqlite30.0The dbmigrations tool built for SQLite databases (bsd3, database, program)JonathanDaugherty
dbus-qq40.0Quasi-quoter for DBus functions (bsd3, library, network)PaoloCapriotti
dbus-th70.0TemplateHaskell generator of DBus bindings (bsd3, library, network)IlyaPortnov
dbus-th-introspection10.0Generate bindings for DBus calls by using DBus introspection and dbus-th (bsd3, development, library, program)IlyaPortnov
dclabel (deprecated in favor of lio)70.0This packge is deprecated. See the the "LIO.DCLabel" in the "lio" package. (benchmark, bsd3, deprecated, library, security)DeianStefan
dclabel-eci11 (deprecated in favor of lio)70.0The Disjunction Category Label Format. (bsd3, deprecated, library, security)AlejandroRusso
dcpu1670.0DCPU-16 Emulator & Assembler (bsd3, compilers-interpreters, library, program)anatolat
dead-code-detection140.0detect dead code in haskell projects (bsd3, development, program)SoenkeHahn
debian810.0Modules for working with the Debian package system (bsd3, debian, library, program)DavidFox, JeremyShaw, MarcoSilva
debian-build290.0Debian package build sequence tools (bsd3, debian, library, program)KeiHibino
debug-diff20.0Display a colorized diff between two Haskell values (bsd3, debug, library)KeeganMcAllister
decepticons10.0The categorical dual of transformers. (bsd3, control, library)JoeQuinn
decimal-arithmetic150.0An implementation of the General Decimal Arithmetic Specification (bsd3, library, numeric)RobLeslie
decoder-conduit20.0Conduit for decoding ByteStrings using Data.Binary.Get (bsd3, conduit, library)hansonkd
deepcontrol190.0A library that provides deep-level programming style and(or) notation on Applicative and Monad (bsd3, control, library)KONISHI_Yohsuke
deepseq4772.0Deep evaluation of data structures (bsd3, control, library)AustinSeipp, DonaldStewart, HerbertValerioRiedel, IanLynagh, SimonMarlow
deepseq-bounded180.0Bounded deepseq, including support for generic deriving (bsd3, control, library)AndrewSeniuk
deepseq-generics1190.0GHC.Generics-based Control.DeepSeq.rnf implementation (bsd3, control, library)HerbertValerioRiedel
deepseq-th (deprecated in favor of deepseq-generics)100.0Template Haskell based deriver for optimised NFData instances (bsd3, control, deprecated, library)HerbertValerioRiedel
deepzoom10.0A DeepZoom image slicer. Only known to work on 32bit Linux (bsd3, graphics, library)MatthewPanetta
defargs30.0default arguments in haskell (bsd3, library, type-system)Kinokkory
deiko-config10.0Small and typesafe configuration library. (bsd3, data, library)YorickLaupa
deka80.0Decimal floating point arithmetic (bsd3, library, math)OmariNorman
deka-tests20.0Tests for deka, decimal floating point arithmetic (bsd3, library, math, program)OmariNorman
delaunay50.0Build a Delaunay triangulation of a set of points (bsd3, graphics, library)MarcelRuegenberg
delay70.0More useful and humain delaying functions (bsd3, concurrency, library, system)davean
delicious50.0Accessing the del.icio.us APIs from Haskell (v2) (bsd3, library, web)SigbjornFinne
delimited-text270.0Parse character delimited textual data (bsd3, data, library)DonaldStewart, StefanKersten
delimiter-separated30.0Library for dealing with tab and/or comma (or other) separated files (bsd3, development, library)AtzeDijkstra
delta-h30.0Online entropy-based model of lexical category acquisition. (bsd3, library, natural-language-processing, program)GrzegorzChrupala
demarcate (deprecated in favor of free)30.0Demarcating transformed monad. (bsd3, control, deprecated, library)NickolayKudasov
denominate70.0Functions supporting bulk file and directory name normalization. (bsd3, library, program, system)CalvinSmith
dense30.0Mutable and immutable dense multidimensional arrays (bsd3, data, library)cchalmers
dequeue210.0A typeclass and an implementation for double-ended queues. (bsd3, data-structures, library)HenryBucklow
derive1242.0A program and library to derive instances for data types (bsd3, development, library, program)AustinSeipp, NeilMitchell, StefanORear
derive-IG40.0Macro to derive instances for Instant-Generics using Template Haskell (bsd3, data, generics, library)HiromiIshii
derive-gadt40.0Instance deriving for (a subset of) GADTs. (bsd3, development, language, library, program)MattMorrow
derive-trie60.0Automatic derivation of Trie implementations. (bsd3, data, library)AndreasBaldeau
deriving-compat3510.0Backports of GHC deriving extensions (bsd3, compatibility, library)ryanglscott
derp130.0Derivative Parsing (bsd3, library, parsing)DavidDarais
derp-lib20.0combinators based on parsing with derivatives (derp) package (bsd3, library, text)KiYungAhn
descriptive650.0Self-describing consumers/parsers; forms, cmd-line args, JSON, etc. (bsd3, library, parsing)ChrisDone
desert60.0a simple build tool for OCaml projects (bsd3, language, library, program)zjhsdtc
despair60.0Despair (bsd3, control, library)Heather
detrospector50.0Markov chain text generator (bsd3, natural-language-processing, program, text)KeeganMcAllister
dewdrop20.0Find gadgets for return-oriented programming on x86 (bsd3, library, reverse-engineering, security)KeeganMcAllister
dgs70.0Haskell front-end for DGS' bot interface (bsd3, game, library, network, web)DanielWagner
dhall470.0A configuration language guaranteed to terminate (bsd3, compiler, library, program)GabrielGonzalez
dhall-bash270.0Compile Dhall to Bash (bsd3, compiler, library, program)GabrielGonzalez
dhall-check90.0Check all dhall files in a project (bsd3, development, program)anfelor
dhall-json490.0Compile Dhall to JSON or YAML (bsd3, compiler, library, program)GabrielGonzalez
dhall-nix470.0Dhall to Nix compiler (bsd3, compiler, library, program)GabrielGonzalez
dhall-text180.0Template text using Dhall (bsd3, compiler, program)GabrielGonzalez
dhcp-lease-parser30.0Parse a DHCP lease file (bsd3, library, software)andrewthad
di60.0Easy, powerful, structured and typeful logging without monad towers. (bsd3, library, logging)RenzoCarbonara
dia-base210.0An EDSL for teaching Haskell with diagrams - data types (bsd3, education, graphics, library)PeterDivianszky, lspitzner, GaborPali
dia-functions280.0An EDSL for teaching Haskell with diagrams - functions (bsd3, education, graphics, library)PeterDivianszky, lspitzner, GaborPali
diagrams552.5Embedded domain-specific language for declarative vector graphics (bsd3, graphics, library)AdamVogt, BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-boolean20.0deprecated, part of diagrams-contrib since 1.4 (bsd3, graphics, library)KristofBastiaensen
diagrams-builder630.0hint-based build service for the diagrams graphics EDSL. (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-cairo670.0Cairo backend for diagrams drawing EDSL (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-canvas280.0HTML5 canvas backend for diagrams drawing EDSL (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-contrib690.0Collection of user contributions to diagrams EDSL (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-core4182.25Core libraries for diagrams EDSL (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-graphviz92.0Graph layout and drawing with GrahpViz and diagrams (bsd3, graphics, library)BrentYorgey
diagrams-gtk190.0Backend for rendering diagrams directly to GTK windows (bsd3, graphics, library)BrentYorgey, JohnLato, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-haddock520.0Preprocessor for embedding diagrams in Haddock documentation (bsd3, graphics, library, program)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-hsqml70.0HsQML (Qt5) backend for Diagrams (bsd3, graphics, library)mjmrotek
diagrams-html5130.0HTML5 canvas backend for diagrams drawing EDSL (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-lib4402.5Embedded domain-specific language for declarative graphics (benchmark, bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-pandoc50.0A Pandoc filter to express diagrams inline using the Haskell EDSL _Diagrams_ (bsd3, library, program, text)bergey
diagrams-pdf50.0PDF backend for diagrams drawing EDSL (bsd3, graphics, library)alpheccar
diagrams-pgf100.0PGF backend for diagrams drawing EDSL. (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-postscript3830.0Postscript backend for diagrams drawing EDSL (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-qrcode70.0Draw QR codes to SVG, PNG, PDF or PS files. (bsd3, graphics, library)FelipeLessa
diagrams-rasterific352.0Rasterific backend for diagrams. (bsd3, graphics, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-reflex20.0reflex backend for diagrams drawing EDSL. (bsd3, graphics, library)bergey
diagrams-solve3690.0Pure Haskell solver routines used by diagrams (bsd3, library, math)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-svg4212.0SVG backend for diagrams drawing EDSL. (bsd3, graphics, library)BrentYorgey, DeepakJois, RyanYates, jeffreyrosenbluth, bergey, cchalmers
diagrams-tikz30.0TikZ backend for diagrams drawing EDSL (bsd3, graphics, library)AriePeterson
diagrams-wx30.0Backend for rendering diagrams in wxWidgets (bsd3, graphics, library)MichaelSmith
dialog30.0Simple dialog-based user interfaces (bsd3, interaction, library)lamefun
dictionaries140.0Tools to handle StarDict dictionaries. (bsd3, library, program, text)zohl
dictionary-sharing30.0Sharing/memoization of class members (bsd3, development, library)JonasDuregard
dictparser80.0Parsec parsers for the DICT format produced by dictfmt -t (bsd3, language, library, program)MarkWotton
diet20.0Discrete Interval Encoding Tree (bsd3, development, library)TonyMorris
diff3130.0Perform a 3-way difference of documents (bsd3, data, library)OliverCharles
diffarray50.0DiffArray (bsd3, data-structures, library)AndreasAbel, IanLynagh
diffcabal50.0Diff two .cabal files syntactically (bsd3, distribution, program)DonaldStewart
diffdump20.0Tools for diffing stdout (bsd3, program, system)GregFitzgerald
digamma (deprecated in favor of math-functions)40.0A (deprecated) implementation of the digamma function (bsd3, deprecated, library, math)BenGamari
digest8360.0Various cryptographic hashes for bytestrings; CRC32 and Adler32 for now. (bsd3, cryptography, library)EugeneKirpichov
digestive-functors660.0A practical formlet library (bsd3, library, web)JasperVanDerJeugt
digestive-functors-blaze300.0Blaze frontend for the digestive-functors library (bsd3, library, web)JasperVanDerJeugt
digestive-functors-happstack250.0Happstack backend for the digestive-functors library (bsd3, library, web)JasperVanDerJeugt
digestive-functors-heist410.0Heist frontend for the digestive-functors library (bsd3, library, web)JasperVanDerJeugt
digestive-functors-hsp150.0HSP support for digestive-functors (bsd3, library, web)JeremyShaw
digestive-functors-lucid110.0Lucid frontend for the digestive-functors library (bsd3, library, web)MichaelXavier, athanclark
digestive-functors-scotty80.0Scotty backend for the digestive-functors library (bsd3, library, web)MartinsMacs
digestive-functors-snap500.0Snap backend for the digestive-functors library (bsd3, library, web)JasperVanDerJeugt
digit412.0A data-type representing digits 0-9 and other combinations (bsd3, data, library)TonyMorris, qfpl
digits90.0Converts integers to lists of digits and back. (bsd3, data, library)HenryBucklow
dimensional472.5Statically checked physical dimensions, using Type Families and Data Kinds. (benchmark, bsd3, library, math, physics)BjornBuckwalter, dmcclean
dimensional-codata10.0CODATA Recommended Physical Constants with Dimensional Types (bsd3, library, physics)dmcclean
dimensional-tf (deprecated in favor of dimensional)150.0Statically checked physical dimensions, implemented using type families. (bsd3, deprecated, library, math, physics)BjornBuckwalter
dimensions60.0Safe type-level dimensionality for multidimensional data. (bsd3, geometry, library, math)achirkin
diplomacy10.0The board game Diplomacy, spoken in Haskell (bsd3, library, unclassified)alexvieth
diplomacy-server10.0Play Diplomacy over HTTP (bsd3, program, unclassified)alexvieth
direct-binary-files10.0Serialization and deserialization monads for streams and ByteStrings. (bsd3, data, library)IreneKnapp
direct-daemonize60.0Library to switch to daemon mode using built-in OS facilities. (bsd3, library, system)IreneKnapp
direct-fastcgi90.0Native implementation of the FastCGI protocol. (bsd3, library, network)IreneKnapp
direct-http60.0Native webserver that acts as a library. (bsd3, library, network)IreneKnapp
direct-murmur-hash40.0An implementation of the MurmurHash3 algorithm (bsd3, data, library)IreneKnapp, dmbarbour
direct-plugins50.0Lightweight replacement for Plugins, specific to GHC (bsd3, library, system)IreneKnapp
direct-sqlite600.0Low-level binding to SQLite3. Includes UTF8 and BLOB support. (bsd3, database, library)IreneKnapp, JanneHellsten
directed-cubical40.0Finite directed cubical complexes and associated algorithms (bsd3, library, math)mmisamore
directory7850.0Platform-agnostic library for filesystem operations (bsd3, library, system)AustinSeipp, HerbertValerioRiedel, IanLynagh, Rufflewind
directory-layout200.0Directory layout DSL (bsd3, library, system, testing)MatveyAksenov
directory-listing-webpage-parser40.0directory listing webpage parser (bsd3, library, text)sifmelcara
directory-tree1682.0A simple directory-like tree datatype, with useful IO functions (bsd3, data, library, system)BrandonSimmons
dirfiles90.0 (bsd3, data, library)HugoGomes
dirstream70.0Easily stream directory contents in constant memory (bsd3, library, pipes, system)GabrielGonzalez
disassembler100.0Disassembler for X86 & AMD64 machine code (bsd3, development, disassembler, library)DirkKleeblatt, MartinGrabmueller
discordian-calendar20.0library for handling Discordian calendar dates (bsd3, date, library)AdamCurtis
discrete-space-map80.0A discrete space map. (bsd3, data, library)SjoerdVisscher
discrimination72.25Fast generic linear-time sorting, joins and container construction. (benchmark, bsd3, data, library, sorting)EdwardKmett
disjoint-set30.0Persistent disjoint-sets, a.k.a union-find. (bsd3, data, library)MaxwellSayles
disjoint-sets-st120.0Imperative ST/IO based disjoint set data structure. (bsd3, data-structures, library)PetrPudlak
disk-free-space160.0Retrieve information about disk space usage (bsd3, filesystem, library, system)MariosTitas
disposable180.0Allows storing different resource-releasing actions together. (bsd3, control, library)louispan
distributed-closure132.0Serializable closures for distributed programming. (bsd3, control, library)AlexanderVershilov, AlpMestanogullari, MathieuBoespflug
distributed-process882.5Cloud Haskell: Erlang-style concurrency in Haskell (benchmark, bsd3, control, library)AlexanderVershilov, EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-async120.0Cloud Haskell Async API (bsd3, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-azure30.0Microsoft Azure backend for Cloud Haskell (bsd3, control, library)EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-client-server150.0The Cloud Haskell Application Platform (bsd3, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-ekg30.0Collect node stats for EKG (bsd3, library, network, system)AlexanderBondarenko
distributed-process-execution60.0Execution Framework for The Cloud Haskell Application Platform (bsd3, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-extras150.0Cloud Haskell Extras (bsd3, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-fsm20.0The Cloud Haskell implementation of Erlang/OTP gen_statem (bsd3, control, library)TimWatson
distributed-process-lifted200.0monad-control style typeclass and transformer instances for Process monad. (bsd3, cloud-haskell, control, library)jeremyjh
distributed-process-monad-control200.0Orphan instances for MonadBase and MonadBaseControl. (bsd3, control, library)jeremyjh
distributed-process-p2p140.0Peer-to-peer node discovery for Cloud Haskell (bsd3, library, network)AlexanderBondarenko
distributed-process-platform (deprecated in favor of distributed-process-extras, distributed-process-async, distributed-process-client-server, distributed-process-registry, distributed-process-supervisor, distributed-process-task, distributed-process-execution)30.0The Cloud Haskell Application Platform (bsd3, control, deprecated, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-registry30.0Cloud Haskell Extended Process Registry (bsd3, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-simplelocalnet310.0Simple zero-configuration backend for Cloud Haskell (bsd3, control, library)AlexanderVershilov, EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-supervisor60.0Supervisors for The Cloud Haskell Application Platform (bsd3, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-systest60.0Cloud Haskell Test Support (bsd3, cloud-haskell, control, library)TimWatson
distributed-process-task50.0Task Framework for The Cloud Haskell Application Platform (bsd3, cloud-haskell, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-tests240.0Tests and test support tools for distributed-process. (bsd3, cloud-haskell, control, library)AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-zookeeper210.0A Zookeeper back-end for Cloud Haskell. (bsd3, cloud-haskell, control, library)jeremyjh
distributed-static440.0Compositional, type-safe, polymorphic static values and closures (bsd3, control, library)EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distribution-nixpkgs120.0Types and functions to manipulate the Nixpkgs distribution (bsd3, distribution, library, nix)PeterSimons
distributive17002.0Distributive functors -- Dual to Traversable (bsd3, data-structures, library)EdwardKmett, EricMertens, ryanglscott
dixi170.0A wiki implemented with a firm theoretical foundation. (bsd3, library, program, web)LiamOConnorDavis
djinn220.0Generate Haskell code from a type (bsd3, program, source-tools)LennartAugustsson
djinn-ghc3170.0Generate Haskell code from a type. Bridge from Djinn to GHC API. (bsd3, language, library)AlejandroSerrano
djinn-lib3310.0Generate Haskell code from a type. Library extracted from djinn package. (bsd3, language, library)AlejandroSerrano
djinn-th20.0Generate executable Haskell code from a type (bsd3, language, library)ClaudeHeilandAllen
dlist35650.0Difference lists (bsd3, data, library)DonaldStewart, SeanLeather
dlist-instances320.0Difference lists instances (bsd3, data, library)GregWeber, MichaelSnoyman, SeanLeather
dlist-nonempty50.0Non-empty difference lists (benchmark, bsd3, data, library)phadej
dmenu90.0Complete bindings to the dmenu and dmenu2 command line tools. (bsd3, library, system)m0rphism
dmenu-pkill60.0dmenu script for killing applications. Sortable by process id or CPU/MEM usage. (bsd3, program, system)m0rphism
dmenu-pmount40.0Mounting and unmounting linux devices as user with dmenu and pmount. (bsd3, program, system)m0rphism
dmenu-search50.0dmenu script for searching the web with customizable search engines. (bsd3, program, system)m0rphism
dns2190.0DNS library in Haskell (bsd3, library, network)KazuYamamoto
dnscache120.0Caching DNS resolver library and mass DNS resolver utility (bsd3, library, network, program)ErtugrulSoeylemez, esz
dnsrbl60.0Asynchronous DNS RBL lookup (bsd3, library, network)HoldenKarau
dnssd10.0DNS service discovery bindings (bsd3, library, network)MaxwellSwadling
do-list90.0Do notation for free (benchmark, bsd3, data, library, list, syntax)TarasSerduke
doc-review40.0Document review Web application, like http://book.realworldhaskell.org/ (bsd3, program, web)JoshHoyt
docidx70.0Generate an HTML index of installed Haskell packages and their documentation. (bsd3, documentation, program)AndyGimblett
docker382.0An API client for docker written in Haskell (bsd3, library, network)denibertovic
docker-build-cacher90.0Builds a services with docker and caches all of its intermediate stages (bsd3, operations, program)lorenzo
doctemplates2362.0Pandoc-style document templates (bsd3, library, text)JohnMacFarlane
dollaridoos180.0A newtype for monetary values (bsd3, finance, library)
dom-lt90.0The Lengauer-Tarjan graph dominators algorithm. (algorithms, bsd3, graphs, library)MattMorrow
dom-selector30.0DOM traversal by CSS selectors for xml-conduit package (bsd3, library, web)nebuta
domain-auth80.0Domain authentication library (bsd3, library, network)KazuYamamoto
dominion90.0A simulator for the board game Dominion. (bsd3, game, library, program, simulation)AdityaBhargava
domplate20.0A simple templating library using HTML5 as its template language. (bsd3, library, text, web)AntonEkblad
dot50.0Data types and encoding for graphviz dot files (bsd3, library, web)andrewthad
dot-linker10.0Initial project template from stack (bsd3, library, program, util)pjrt
dot2graphml100.0Converter from GraphViz .dot format to yEd GraphML (bsd3, graphics, program)IlyaPortnov
dotfs40.0Filesystem to manage and parse dotfiles (bsd3, library, program, system)PaulVanDerWalt
dotgen230.0A simple interface for building .dot graph files. (bsd3, library, text)AndyGill, ryanglscott
dotnet-timespan50.0.NET TimeSpan (bsd3, data, library)YorickLaupa
double-conversion12500.0Fast conversion between double precision floating point and text (bsd3, library, text)BryanOSullivan
double-extra150.0Missing presentations for Double numbers (fixed, scientific etc.) (bsd3, library)tolysz
dove20.0The Dove verification language. (bsd3, formal-methods, language, library)TomHawkins
dow170.0Dungeons of Wor (bsd3, frp, game, program, reactivity)GergelyPatai
download312.0High-level file download based on URLs (bsd3, library, network)DonaldStewart, MagnusTherning, psibi
download-curl140.0High-level file download based on URLs (bsd3, library, network)DonaldStewart, SoenkeHahn
download-media-content20.0Simple tool to download images from RSS feeds (e.g. Flickr, Picasa) (application, bsd3, program)JasperVanDerJeugt
dph-base50.0Data Parallel Haskell common config and debugging functions. (bsd3, data-structures, library)BenLippmeier
dph-examples150.0Data Parallel Haskell example programs. (bsd3, data-structures, program)BenLippmeier
dph-lifted-base30.0Data Parallel Haskell common definitions used by other dph-lifted packages. (bsd3, data-structures, library)BenLippmeier
dph-lifted-copy30.0Data Parallel Haskell lifted array combinators. (deprecated version) (bsd3, data-structures, library)BenLippmeier
dph-lifted-vseg50.0Data Parallel Haskell lifted array combinators. (bsd3, data-structures, library)BenLippmeier
dph-par50.0(deprecated) (bsd3, data-structures, library)BenLippmeier
dph-prim-interface50.0Data Parallel Haskell segmented arrays. (abstract interface) (bsd3, data-structures, library)BenLippmeier
dph-prim-par50.0Data Parallel Haskell segmented arrays. (production version) (bsd3, data-structures, library)BenLippmeier
dph-prim-seq60.0Data Parallel Haskell segmented arrays. (sequential implementation) (bsd3, data-structures, library)BenLippmeier
dph-seq40.0(deprecated) (bsd3, data-structures, library)BenLippmeier
draw-poker30.0playing draw poker (bsd3, game, library, program)outoftune
drmaa60.0A minimal Haskell bindings to DRMAA C library. (bsd3, language, library)kaizhang
dropsolve (deprecated in favor of confsolve)60.0A command line tool for resolving dropbox conflicts. Deprecated! Please use confsolve. (bsd3, deprecated, program, utils)DanielTrstenjak
dsh-sql30.0SQL backend for Database Supported Haskell (DSH) (bsd3, database, library, program)AlexUlrich2
dsmc30.0DSMC library for rarefied gas dynamics (bsd3, library, physics)DmitryDzhus
dsmc-tools20.0DSMC toolkit for rarefied gas dynamics (bsd3, physics, program)DmitryDzhus
dstring180.0Difference strings (bsd3, data, library)BasVanDijk
dtd (deprecated)130.0Parse and render DTD files (deprecated) (bsd3, deprecated, library, text)MichaelSnoyman
dtd-text90.0Parse and render XML DTDs (bsd3, data, library, parsing, text, xml)YitzGale, M15K
dtd-types110.0Basic types for representing XML DTDs (bsd3, library, text, xml)YitzGale, M15K
dtrace30.0Haskell interface to the DTrace system tracing utility (bsd3, library, system)AaronTomb
dual-tree3910.0Rose trees with cached and accumulating monoidal annotations (bsd3, data, library)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
dunai320.0Generalised reactive framework supporting classic, arrowized and monadic FRP. (bsd3, frp, library, reactivity)IvanPerez, keera_studios_ci
dustme30.0Initial project template from stack (bsd3, library, program, web)MarkWotton
dvda (deprecated in favor of dynobud)130.0Efficient automatic differentiation and code generation (bsd3, deprecated, library, math, numerical)GregHorn
dvorak50.0Dvorak encoding for Haskell. (bsd3, codec, library)KyleVanBerendonck
dwarf120.0Parser for DWARF debug format. (bsd3, data, library)ErikCharlebois
dwarf-el50.0Parser for DWARF debug format. (bsd3, data, library)EyalLotem
dwarfadt70.0High-level wrapper around the dwarf library (bsd3, development, library, program)EyalLotem
dwergaz100.0A minimal testing library (bsd3, library, testing)henrytill
dx9base40.0Backend for a binding to the Microsoft DirectX 9 API. (bsd3, graphics, library)KidoTakahiro
dx9d3d80.0A binding to the Microsoft DirectX 9 API. (bsd3, graphics, library)KidoTakahiro
dx9d3dx30.0A binding to the Microsoft DirectX 9 D3DX API. (bsd3, graphics, library)KidoTakahiro
dyckword110.0A library for working with binary Dyck words. (bsd3, library, math)arbelos
dynamic-cabal210.0Access the functions from the Cabal library without depending on it (bsd3, distribution, library)BennoFuenfstueck
dynamic-graph160.0Draw and update graphs in real time with OpenGL (bsd3, graphics, library)adamwalker
dynamic-linker-template90.0Automatically derive dynamic linking methods from a data type. (bsd3, library, system)SylvainHenry
dynamic-loader60.0lightweight loader of GHC-based modules or packages (bsd3, library, system)GaborGreif
dynamic-mvector90.0A wrapper around MVector that enables pushing, popping and extending. (bsd3, data, library)AndrasKovacs
dynamic-object60.0Object-oriented programming with duck typing and singleton classes. (bsd3, data, library)TakayukiMuranushi
dynamic-pp30.0A pretty-print library that employs a dynamic programming algorithm for optimal rendering. (bsd3, library, text)emc2
dynamodb-simple90.0Typesafe library for working with DynamoDB database (bsd3, database, library)ondrap
dyre520.0Dynamic reconfiguration in Haskell (bsd3, configuration, development, library)WillDonnelly
each62.0Template Haskell library for writing monadic expressions more easily (bsd3, language, library)dramforever
ease40.0Robert Penner's easing equations (bsd3, game, library, math)fresheyeball
easy-bitcoin20.0types and functions for bitcoin applications (bsd3, library, network)AlejandroDuranPallares
easy-file6720.0Cross-platform File handling (bsd3, library, system)KazuYamamoto
ebeats30.0Time in ebeats (bsd3, library, time)BrianLewis
ec2-signature60.0The Amazon EC2 style signature calculator. (bsd3, library, network)YusukeNomura
ec2-unikernel40.0A handy tool for uploading unikernels to Amazon's EC2. (aws, bsd3, program, unikernel)AdamWick
eccrypto40.0Elliptic Curve Cryptography for Haskell (bsd3, cryptography, library)MarcelFourne
echo5130.0A cross-platform, cross-console way to handle echoing terminal input (bsd3, library, system)ryanglscott
ecu240.0Tools for automotive ECU development. (bsd3, embedded, program, utils)TomHawkins
ed25519-donna70.0Haskell bindings to ed25519-donna (Elliptical Curve Signature Scheme) (bsd3, cryptography, library)ThomasDuBuisson
eddie100.0Command line file filtering with haskell (bsd3, cli-tool, program)MikeMeyer
edenmodules30.0Semi-explicit parallel programming library (bsd3, control, distributed-computing, eden, library, parallelism)MischaDieterle, JostBerthold, horstmeyer
edenskel60.0Semi-explicit parallel programming skeleton library (bsd3, control.parallel.eden, library)MischaDieterle, JostBerthold, horstmeyer
edit-distance6320.0Levenshtein and restricted Damerau-Levenshtein edit distances (algorithms, benchmark, bsd3, library)MaxBolingbroke, phadej
edit-distance-vector70.0Calculate edit distances and edit scripts between vectors. (algorithms, bsd3, data, data-structures, library)ThomasSutton
edit-lenses40.0Symmetric, stateful edit lenses (bsd3, data, library)DanielWagner
edit-lenses-demo40.0Programs demoing the use of symmetric, stateful edit lenses (bsd3, data, program)DanielWagner
editline90.0Bindings to the editline library (libedit). (bsd3, library, user-interfaces)JudahJacobson
editpipe30.0Edit stdin using an editor before sending to stdout. (bsd3, editor, program)puffnfresh
effect-monad70.0Embeds effect systems into Haskell using graded monads (bsd3, control, library, monads)DominicOrchard
effects100.0Computational Effects (bsd3, control, library, monads)SjoerdVisscher
effects-parser20.0Parser Effect for the Control.Effects Library (bsd3, control, library, monads)JesseMcDonald
effin200.0A Typeable-free implementation of extensible effects (bsd3, control, effect, library)AnthonyVandikas
eigen252.0Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, numerical solvers). (algebra, algorithms, bsd3, data, library, math, numeric, statistics)OlegSidorkin
either8800.0An either monad transformer (bsd3, control, library, monads)EdwardKmett, ryanglscott
either-unwrap (deprecated in favor of either)160.0Functions for probing and unwrapping values inside of Either. (bsd3, data, deprecated, library)GregoryCrosswhite
eithers (deprecated in favor of either)50.0None (bsd3, deprecated, library, unclassified)
ekg1262.5Remote monitoring of processes (bsd3, library, network, system)JohanTibell, MikhailGlushenkov
ekg-bosun220.0Send ekg metrics to a Bosun instance (bsd3, library, system)OliverCharles
ekg-carbon180.0An EKG backend to send statistics to Carbon (part of Graphite monitoring tools) (bsd3, library, unclassified)OliverCharles
ekg-cloudwatch42.0An ekg backend for Amazon Cloudwatch (bsd3, library, web)parsonsmatt
ekg-core3930.0Tracking of system metrics (benchmark, bsd3, library, system)JohanTibell, MikhailGlushenkov
ekg-elastic (deprecated in favor of ekg-elasticsearch)70.0Push metrics to elastic (bsd3, deprecated, library, system)boothead
ekg-elasticsearch90.0Push metrics to elasticsearch (bsd3, library, system)boothead
ekg-influxdb30.0An EKG backend to send statistics to influxdb (bsd3, library, unclassified)angerman
ekg-json3740.0JSON encoding of ekg metrics (bsd3, distribution, library)JohanTibell, MikhailGlushenkov
ekg-log50.0Push metrics to a log file. (bsd3, library, system)ParnellSpringmeyer
ekg-push30.0Small framework to push metric deltas to a broadcast channel using the ekg-core library. (bsd3, library, system)adarqui
ekg-rrd40.0Passes ekg statistics to rrdtool (bsd3, library, system)dcturner
ekg-statsd3610.0Push metrics to statsd (bsd3, library, system)JohanTibell, MikhailGlushenkov
ekg-wai2920.0Remote monitoring of processes (bsd3, library, network, system)TvH
elerea482.0A minimalistic FRP library (bsd3, frp, library, reactivity)GergelyPatai
elerea-examples300.0Example applications for Elerea (bsd3, frp, program, reactivity)GergelyPatai
elevator90.0Immediately lifts to a desired level (bsd3, control, library)FumiakiKinoshita
elf200.0Parser for ELF object format. (bsd3, data, library)ErikCharlebois, wangbj
eliminators60.0Dependently typed elimination functions using singletons (bsd3, dependent-types, library)ryanglscott
elm-bridge122.0Derive Elm types and Json code from Haskell types (bsd3, compiler, language, library, web)AlexanderThiemann, SimonMarechal
elm-build-lib (deprecated)20.0Compile Elm code to JS within Haskell (bsd3, compiler, deprecated, language, library)jeremondi
elm-compiler (deprecated)60.0Values to help with elm-package, elm-make, and elm-lang.org. (bsd3, compiler, deprecated, language, library, program)EvanCzaplicki
elm-core-sources40.0Source files for the Elm runtime and standard libraries (bsd3, compiler, language, library)jeremondi
elm-get (deprecated in favor of elm-package)70.0Tool for sharing and using Elm libraries (bsd3, deprecated, language, library, program)EvanCzaplicki
elm-hybrid70.0Combine Elm with Haskell for data based applications (bsd3, library, web)matsrietdijk
elm-make (deprecated)50.0A build tool for Elm projects (bsd3, build-tool, deprecated, program)EvanCzaplicki
elm-package (deprecated)60.0Package manager for Elm libraries (bsd3, deprecated, language, library, program)EvanCzaplicki
elm-reactor (deprecated)60.0Interactive development tool for Elm programs (bsd3, compiler, deprecated, language, program)EvanCzaplicki
elm-repl (deprecated)110.0a REPL for Elm (bsd3, deprecated, program, tool)EvanCzaplicki
elm-server (deprecated in favor of elm-reactor)200.0Server for developing Elm projects (bsd3, compiler, deprecated, language, program)EvanCzaplicki
elm-yesod70.0The Elm language Yesod compatibility module. (bsd3, library, web, yesod)VincentAmbo
elo20.0Elo Rating Library (bsd3, library, web)markfine
email (deprecated)70.0Sending eMail in Haskell made easy (bsd3, deprecated, library, network)JohannesWeiss
email-header50.0Parsing and rendering of email and MIME headers (bsd3, library, network)KyleRaftogianis
email-postmark (deprecated in favor of postmark)20.0A simple wrapper to send emails via the api of the service postmark (http://postmarkapp.com/) (bsd3, deprecated, email, library)DanielPatterson
email-validate1082.25Email address validation (bsd3, library, text)DonaldStewart, GeorgePollard
email-validate-json30.0Aeson instances for email-validate (bsd3, library, web)MarkWotton
emailaddress110.0Wrapper around email-validate library adding instances for common type classes. (bsd3, library, text)cdepillabout
emailparse10.0An email parser that will parse everything (bsd3, library, network)mkawalec
embeddock70.0Embed the values in scope in the haddock documentation of the module (bsd3, documentation, library, program)TakayukiMuranushi
embeddock-example20.0Example of using embeddock. (bsd3, documentation, library)TakayukiMuranushi
emgm120.0Extensible and Modular Generics for the Masses (bsd3, generics, library)SeanLeather
empty (deprecated)50.0Ceci n'est pas une package (acme, bsd3, deprecated, library)JohnMillikin
empty-monad50.0A container that always has no values. (bsd3, data, library)vadimvinnik
enchant20.0Binding to the Enchant library (bsd3, language, library)kseo
encoding560.0A library for various character encodings (bsd3, codec, library)DanielWagner, HenningGuenther, KangyuanNiu
encoding-io40.0Encoding-aware file I/O. (bsd3, data, library)terrorjack
endo100.0Endomorphism utilities. (bsd3, data, library)PeterTrsko
engine-io3640.0A Haskell implementation of Engine.IO (bsd3, library, web)OliverCharles, TimBaumann
engine-io-snap130.0 (bsd3, library, unclassified)OliverCharles
engine-io-wai3352.0 (bsd3, library, network)codedmart
engine-io-yesod70.0 (bsd3, library, network)OliverCharles, TimBaumann
engineering-units40.0A numeric type for managing and automating engineering units. (bsd3, data, library)TomHawkins
entropy8750.0A platform independent entropy source (bsd3, cryptography, data, library)ThomasDuBuisson
enumerable70.0A typeclass for enumerating all values a type (bsd3, data, library)DanielPeebles
enumerate-function50.0simple package for inverting functions and testing totality, via brute enumeration of the domain (benchmark, bsd3, library, program, todo)sboo
enumeration20.0A practical API for building recursive enumeration procedures and enumerating datatypes. (bsd3, data, library, serialization, test, testing)emc2
enumfun30.0Finitely represented /total/ EnumMaps (bsd3, data, library)LiyangHu
enummapmap90.0Map of maps using Enum types as keys (benchmark, bsd3, data, data-structures, library)MatthewWest
enummapset90.0IntMap and IntSet with Enum keys/elements. (bsd3, data, library)MichalTerepeta
enummapset-th1150.0TH-generated EnumSet/EnumMap wrappers around IntSet/IntMap. (bsd3, data, library)LiyangHu
enumset110.0Sets of enumeration values represented by machine words (bsd3, data, foreign, library)HenningThielemann
envelope90.0Defines generic 'Envelope' type to wrap reponses from a JSON API. (bsd3, library, web)cdepillabout
envparse160.0Parse environment variables (bsd3, library, system)MatveyAksenov
envy482.25An environmentally friendly way to deal with environment variables (bsd3, library, system)DavidJohnson, SoenkeHahn
epass60.0Baisc, Erlang-like message passing supporting sockets. (bsd3, concurrency, library, network)AndreasBaldeau
epic270.0Compiler for a simple functional language (bsd3, compilers-interpreters, library, program)AndreasAbel, EdwinBrady
eprocess200.0Basic Erlang-like process support for Haskell (bsd3, concurrency, library)CorentinDupont, FernandoBenavides
epub (deprecated in favor of epub-metadata)90.0EPUB E-Book construction support library (bsd3, deprecated, library, program, text)RadoslavDorcik
epub-metadata270.0Library for parsing epub document metadata (bsd3, codec, library, program, text)DinoMorelli
epub-tools270.0Command line utilities for working with epub files (application, bsd3, console, program)DinoMorelli
epubname (deprecated in favor of epub-tools)80.0Rename epub ebook files based on meta information (application, bsd3, console, deprecated, program)DinoMorelli
eq440.0Leibnizian equality (bsd3, library, type-system)EdwardKmett
equational-reasoning1331.5Proof assistant for Haskell using DataKinds & PolyKinds (bsd3, library, math)HiromiIshii
equivalence1560.0Maintaining an equivalence relation implemented as union-find using STT. (algorithms, bsd3, data, library)PatrickBahr
erf4840.0The error function, erf, and related functions. (bsd3, library, math)LennartAugustsson
eros200.0A text censorship library. (bsd3, library, text)pharpend
eros-client50.0DEPRECATED in favor of eros-http (bsd3, program, text)pharpend
eros-http50.0JSON HTTP interface to Eros. (bsd3, program, text)pharpend
errno30.0a FFI utility (bsd3, foreign, library)CreightonHogg
error-analyze20.0Parse ghc and cabal error messages and give their causes for easier resolution (bsd3, development, ghc, library)JeanPhilippeMoresmau
error-location (deprecated in favor of file-location)210.0error functions that show file location information (bsd3, deprecated, development, library)GregWeber
error-message70.0Composable error messages. (bsd3, development, error-handling, library)GregoryCrosswhite
errors5662.25Simplified error-handling (bsd3, control, error-handling, library)GabrielGonzalez
ersaconcat30.0A script to concatenate AIP ERSA (aviation, bsd3, library, program)TonyMorris
ersatz302.0A monad for expressing SAT or QSAT problems using observable sharing. (algorithms, bsd3, library, logic)EdwardKmett, EricMertens, ryanglscott
ersatz-toysat30.0toysat driver as backend for ersatz (algorithms, bsd3, library, logic)MasahiroSakai
escape-artist42.0ANSI Escape Sequence Text Decoration Made Easy (bsd3, library, text)ryan_daniels
esotericbot130.0Esotericbot is a sophisticated, lightweight IRC bot. (bsd3, library, program, web)JohnnyMorrice
esqueleto1422.0Type-safe EDSL for SQL queries on persistent backends. (bsd3, database, library)MichaelSnoyman, bitemyapp
estimator60.0State-space estimation algorithms such as Kalman Filters (bsd3, library, math, numerical, statistics)AdamFoltzer, JameySharp
estimators60.0Tool for managing probability estimation (bsd3, library, natural-language-processing)SashaRush
eternal170.0everything breaking the Fairbairn threshold (bsd3, control, library)Heather
ether3512.0Monad transformers and classes (benchmark, bsd3, control, library)int_index
ethereum-client-haskell40.0A Haskell version of an Ethereum client (bsd3, data-structures, program)jamshid
ethereum-merkle-patricia-db (deprecated in favor of merkle-patricia-db)10.0A modified Merkle Patricia DB (bsd3, data-structures, deprecated, library)jamshid
ety20.0Random etymology online entry. (bsd3, library, program, web)ChrisDone
eurofxref100.0Free foreign exchange/currency feed from the European Central Bank (bsd3, finance, library)StephenBlackheath
eve140.0An extensible event framework (bsd3, framework, library)ChrisPenner
event110.0Monoidal, monadic and first-class events (bsd3, concurrency, library)DimitriSabadie
event-driven30.0library for event driven programming (bsd3, control, library)YoshikuniJujo
event-transformer (deprecated)40.0Initial project template from stack (bsd3, control, deprecated, library, program)SchellScivally
eventloop340.0A different take on an IO system. Based on Amanda's IO loop, this eventloop takes a function that maps input events to output events. It can easily be extended by modules that represent IO devices or join multiple modules together. (bsd3, eventloop, library)sebaslafleur
eventsource-api160.0Provides an eventsourcing high level API. (bsd3, eventsourcing, library)YorickLaupa
eventsource-geteventstore-store180.0GetEventStore store implementation. (bsd3, eventsourcing, library)YorickLaupa
eventsource-store-specs100.0Provides common test specification for Store implementation. (bsd3, eventsourcing, library, testing)YorickLaupa
eventsource-stub-store120.0An in-memory stub store implementation. (bsd3, eventsourcing, library)YorickLaupa
eventstore600.0EventStore TCP Client (bsd3, database, library)YorickLaupa
every70.0Run a process every so often. (bsd3, library, web)athanclark
every-bit-counts20.0A functional pearl on encoding and decoding using question-and-answer strategies (bsd3, data, library)DonaldStewart
ewe180.0A language for teaching simple programming languages (bsd3, language, program)JuanFranciscoCardonaMcCormick
ex-pool60.0Another fork of resource-pool, with a MonadIO and MonadCatch constraint (bsd3, data, library)KimAltintop
exact-combinatorics50.0Efficient exact computation of combinatoric functions. (bsd3, library, math, statistics)WrenThornton
exact-cover40.0Efficient exact cover solver. (algorithms, bsd3, library, math)arthur
exact-real-positional50.0Framework for Exact Real Arithmetic in the Positional Number System (bsd3, library, math)grlks
exception-hierarchy20.0Exception type hierarchy with TemplateHaskell (bsd3, language, library)YoshikuniJujo
exception-mailer70.0Catch all runtime exceptions and send an email (bsd3, library, system)DavidPowell
exception-monads-fd (deprecated in favor of exception-mtl)40.0Exception monad transformer instances for monads-fd classes. (bsd3, control, deprecated, error-handling, failure, library, monad)GeoffreyMainland
exception-monads-tf140.0Exception monad transformer instances for monads-tf classes. (bsd3, control, error-handling, failure, library, monad)GeoffreyMainland
exception-mtl170.0Exception monad transformer instances for mtl classes. (bsd3, control, error-handling, failure, library, monad)GeoffreyMainland
exception-transformers230.0Type classes and monads for unchecked extensible exceptions. (bsd3, control, error-handling, failure, library, monad)GeoffreyMainland
exceptions27692.0Extensible optionally-pure exceptions (bsd3, control, exceptions, library, monad)EdwardKmett, ryanglscott
exference30.0Tool to search/generate (haskell) expressions with a given type (bsd3, language, library)lspitzner
exhaustive130.0Compile time checks that a computation considers producing data through all possible constructors (bsd3, control, library)OliverCharles
exif60.0A Haskell binding to a subset of libexif (bsd3, library, unclassified)BjornBringert
exinst120.0Recover type indexes and instances for your existentialized types. (bsd3, data, library)RenzoCarbonara
exinst-aeson (deprecated in favor of exinst)50.0Derive instances for the `aeson` library for your existential types. (bsd3, data, deprecated, library)RenzoCarbonara
exinst-bytes (deprecated in favor of exinst)50.0Derive instances for the `bytes` library for your existential types. (bsd3, data, deprecated, library)RenzoCarbonara
exinst-deepseq (deprecated in favor of exinst)30.0Derive instances for the `deepseq` library for your existential types. (bsd3, data, deprecated, library)RenzoCarbonara
exinst-hashable (deprecated in favor of exinst)40.0Derive instances for the `hashable` library for your existential types. (bsd3, data, deprecated, library)RenzoCarbonara
exists30.0Existential datatypes holding evidence of constraints (bsd3, constraints, library)GaborLehel
exit-codes40.0Exit codes as defined by BSD (bsd3, library, system)justus
exitcode60.0Monad transformer for exit codes (bsd3, control, library)qfpl
exp-extended70.0floating point with extended exponent range (bsd3, library, numeric)ClaudeHeilandAllen
expiring-cache-map470.0General purpose simple caching. (bsd3, caching, library)elblake
expiring-mvar20.0Create values which expire after a period of time. (bsd3, concurrency, library)JeffShaw
explicit-exception460.0Exceptions which are explicit in the type signature. (bsd3, control, library)HenningThielemann
explicit-iomodes360.0File handles with explicit IOModes (bsd3, library, system)BasVanDijk
explicit-iomodes-bytestring110.0Extends explicit-iomodes with ByteString operations (bsd3, library, system)BasVanDijk
explicit-iomodes-text180.0Extends explicit-iomodes with Text operations (bsd3, library, system)BasVanDijk
explore170.0Experimental Plot data Reconstructor (bsd3, graphics, program)CetinSert
exposed-containers30.0A distribution of the 'containers' package, with all modules exposed. (bsd3, data-structures, library)vi
expression-parser20.0Generalization of parsec's expression parser. (bsd3, library, parsing, text)SebastiaanVisser
expressions441.5Expressions and Formulae a la carte (bsd3, data, library, logic, math)jakubdaniel
expressions-z3170.0Encode and Decode expressions from Z3 ASTs (bsd3, data, library, logic, math)
extcore272.0Libraries for processing GHC Core (bsd3, language, library)TimChevalier
extemp30.0automated printing for extemp speakers (bsd3, program, web)SamAnklesaria
extended-categories20.0Extended Categories (bsd3, library, math)ian_mi
extended-reals350.0Extension of real numbers with positive/negative infinities (bsd3, library, math)MasahiroSakai
extensible440.0Extensible, efficient, optics-friendly data types and effects (bsd3, data, library, monads, records)FumiakiKinoshita
extensible-exceptions9520.0Extensible exceptions (bsd3, control, library)IanLynagh
external-sort50.0Sort large arrays on your hard drive. Kind of like the unix util sort. (bsd3, library, other)ThomasHartman
extra13992.0Extra functions I use. (bsd3, development, library)NeilMitchell
extractable-singleton90.0A functor, where the "stored" value is isomorphic to Identity (bsd3, data, library)athanclark
extractelf10.0Extract an ELF's metadata and sections into files (bsd3, development, program)EyalLotem
extralife40.0API Client for ExtraLife team and user data (bsd3, library, web)wuest
extrapolate240.0generalize counter-examples of test properties (bsd3, library, testing)rudymatela
factual-api150.0A driver for the Factual API (api, bsd3, library, web)RudigerLippert
fad50.0Forward Automatic Differentiation. (bsd3, library, math)BjornBuckwalter
fadno250.0Minimal library for music generation and notation (bsd3, library, music)
fail21882.0Forward-compatible MonadFail class (bsd3, development, library)HerbertValerioRiedel
failable-list (deprecated in favor of enumerator)50.0A list-like type for lazy streams, which might terminate with an error. (bsd3, data, deprecated, error-handling, library)JohnMillikin
failure (deprecated in favor of exceptions)310.0A simple type class for success/failure computations. (deprecated) (bsd3, control, deprecated, failure, library, monads)MichaelSnoyman, Michael_Smith
failure-detector30.0Failure Detectors implimented in Haskell. (bsd3, distributed-computing, library)davean
fake-type20.0A crossplatform library to simulate keyboard input (bsd3, library, system)Artyom
falling-turnip20.0Falling sand game/cellular automata simulation using regular parallel arrays. (bsd3, game, program)TranMa
family-tree200.0A family tree library for the Haskell programming language. (bsd3, data, genealogy, library)NathanVanDoorn
farmhash90.0Fast hash functions. (benchmark, bsd3, library, system)abhinav
fast-logger7800.0A fast logging system (bsd3, library, system)KazuYamamoto, MichaelSnoyman
fast-math220.0Non IEEE-754 compliant compile-time floating-point optimisations (bsd3, library, math, numeric)LiyangHu, MikeIzbicki
fast-mult50.0Numeric type with asymptotically faster multiplications. (bsd3, library, web)clinton
fast-tags250.0Fast incremental vi and emacs tags. (bsd3, development, haskell, library, program)EvanLaforge
fast-tagsoup180.0Fast parsing and extracting information from (possibly malformed) HTML/XML documents (bsd3, library, xml)VladimirShabanov
fast-tagsoup-utf8-only40.0Fast parser for tagsoup package (bsd3, library, xml)MikhailKuddah
fastcgi280.0A Haskell library for writing FastCGI programs (bsd3, library, network)BjornBringert, DonaldStewart
fastirc (deprecated in favor of irc)70.0Fast Internet Relay Chat (IRC) library (bsd3, deprecated, library, network)ErtugrulSoeylemez, esz
fastparser70.0A fast, but bare bones, bytestring parser combinators library. (benchmark, bsd3, library, parsing)SimonMarechal
fastpbkdf250.0Haskell bindings to the fastpbkdf2 C library (benchmark, bsd3, cryptography, library)AlfredoDiNapoli
fault-tree20.0A fault tree analysis library. (bsd3, embedded, language, library)TomHawkins
fay1000.0A compiler for Fay, a Haskell subset that compiles to JavaScript. (bsd3, development, fay, library, program, web)AdamBergmark, ChrisDone
fay-base330.0The base package for Fay. (bsd3, development, fay, library)AdamBergmark, ChrisDone
fay-builder (deprecated)130.0Compile Fay code on cabal install, and ad-hoc recompile during development (bsd3, deprecated, library, web)AdamBergmark, ErikHesselink
fay-dom70.0DOM FFI wrapper library for Fay (bsd3, fay, library, web)AdamBergmark, ChrisDone
fay-geoposition30.0W3C compliant implementation of GeoPosition API. (bsd3, library, web)eocallaghan
fay-hsx30.0Clientside HTML generation for fay. (bsd3, happstack, library)JeremyShaw
fay-jquery170.0jQuery bindings for Fay. (bsd3, fay, library, web)AdamBergmark, ChrisDone
fay-ref10.0Like IORef but for Fay. (bsd3, fay, library)AndrewMiller
fay-simplejson30.0SimpleJSON library for Fay. (bsd3, fay, library, web)Lupino
fay-uri40.0Persistent FFI bindings for using jsUri in Fay (bsd3, library, web)ChrisDone
fb990.0Bindings to Facebook's API. (bsd3, library, web)FelipeLessa, psibi
fb-persistent160.0Provides Persistent instances to Facebook types. (bsd3, library, web)FelipeLessa
fbmessenger-api110.0High-level bindings to Facebook Messenger Platform API (bsd3, library, program, web)mseri
fcache30.0Cache a function (a -> b) (bsd3, cache, library)YLiLarry
fckeditor20.0Server-Side Integration for FCKeditor (bsd3, library, web)PeterGammie
fclabels4312.25First class accessor labels implemented as lenses. (benchmark, bsd3, data, lenses, library)AdamBergmark, ErikHesselink, SebastiaanVisser
fclabels-monadlib80.0MonadLib monadic interface for the "fclabels" package. (bsd3, data, library)BardurArantsson
fdo-notify230.0Desktop Notifications client (bsd3, desktop, library)MaxRabkin
fdo-trash30.0Utilities related to freedesktop Trash standard. (bsd3, desktop, library, program)EmilKarlson
fedora-packages30.0Haskell interface to the Fedora Packages webapp API. (bsd3, fedora, library, web)RickyElrod
feed1022.0Interfacing with RSS (v 0.9x, 2.x, 1.0) + Atom feeds. (bsd3, library, text)AdamBergmark, DmitryDzhus, DonaldStewart, IavorDiatchki, SigbjornFinne
feed-cli50.0A simple command line interface for creating and updating feeds like RSS (bsd3, program, text, web)IsaacJones
feed-gipeda80.0CI service around gipeda (benchmarking, bsd3, library, program)sgraf812
feed2lj (deprecated)60.0(unsupported) (bsd3, deprecated, program, unclassified)SergeyAstanin
feed2twitter20.0Send posts from a feed to Twitter (bsd3, library, program, web)TomLokhorst
feldspar-compiler200.0Compiler for the Feldspar language (benchmark, bsd3, compiler, library)AndersPersson, EmilAxelsson
feldspar-language210.0A functional embedded language for DSP and parallelism (bsd3, language, library)AndersPersson, EmilAxelsson
feldspar-signal30.0Signal Processing extension for Feldspar (bsd3, language, library)EmilAxelsson, mararon
fez-conf60.0Simple functions for loading config files (bsd3, library, parsing)DinoMorelli
ffeed90.0Haskell binding to the FriendFeed API (bsd3, library, program, web)SigbjornFinne
fficxx150.0automatic C++ binding generation (bsd3, ffi-tools, library)IanWooKim
fficxx-runtime80.0Runtime for fficxx-generated library (bsd3, ffi-tools, library)IanWooKim
ffmpeg-light290.0Minimal bindings to the FFmpeg library. (bsd3, codec, library)AnthonyCowley
ffmpeg-tutorials70.0Tutorials on ffmpeg usage to play video/audio (bsd3, media, program)VasylPasternak
fft400.0Bindings to the FFTW library. (bsd3, library, math)HenningThielemann, JedBrown
fftwRaw50.0Low level bindings to FFTW. (bsd3, library, math)adamwalker
fgl4862.25Martin Erwig's Functional Graph Library (bsd3, data-structures, graphs, library)IvanMiljenovic, MartinErwig
fgl-arbitrary130.0QuickCheck support for fgl (bsd3, graphs, library, testing)IvanMiljenovic
fgl-extras-decompositions40.0Graph decomposition algorithms (bsd3, data-structures, graphs, library)ChristianHoener
fgl-visualize110.0Convert FGL graphs to dot (graphviz) files (bsd3, graphs, library)ThomasDuBuisson
fibon60.0Tools for running and analyzing Haskell benchmarks (benchmarking, bsd3, program)DavidPeixotto
fibonacci120.0Fast computation of Fibonacci numbers. (algorithms, bsd3, library, numerical)SebastianFischer
fields40.0First-class record field combinators with infix record field syntax. (bsd3, data, library)JussiKnuuttila
fields-json80.0Abusing monadic syntax JSON objects generation. (bsd3, library, web)GracjanPolak, MagnusCarlsson, MariuszRak
fig60.0Manipulation of FIG files (bsd3, graphics, library)AndersLauOlsen
file-collection150.0Provide a uniform interface over file archives and directories (bsd3, codec, library)joel_williamson
file-embed6442.25Use Template Haskell to embed file contents directly. (bsd3, data, library)MichaelSnoyman
file-embed-poly (deprecated)50.0Use Template Haskell to embed file contents directly. (bsd3, data, deprecated, library)sasinestro
file-location360.0common functions that show file location information (bsd3, development, library)GregWeber
file-templates70.0Use templates for files and directories (bsd3, cli, program, template)anfelor
filecache160.0A Linux-only cache system associating values to files. (bsd3, data, library)SimonMarechal
filediff160.0Diffing and patching module (bsd3, data, library)bgwines
filemanip3902.0Expressive file and directory manipulation for Haskell. (bsd3, library, system)BryanOSullivan
fileneglect50.0Block thread until a file stops being modified (bsd3, filesystem, library)athanclark
filepath4762.0Library for manipulating FilePaths in a cross platform way. (bsd3, library, system)AustinSeipp, DuncanCoutts, HerbertValerioRiedel, IanLynagh, NeilMitchell
filepather20.0Functions on System.FilePath (bsd3, library, system)TonyMorris
fileplow40.0Library to process and search large files or a collection of files (bsd3, library, web)AlexanderThiemann
filestore740.0Interface for versioning file stores. (bsd3, data, library)GwernBranwen, JohnMacFarlane
filesystem-trees110.0Recursively manipulate and traverse filesystems as lazy rose trees. (bsd3, data, library, system)AdamCurtis
fillit150.0Flexible string substitution (bsd3, library, text)
filtrable60.0Class of filtrable containers (bsd3, data, library)MatthewFarkasDyck
final20.0utility to add extra safety to monadic returns (bsd3, library, unclassified)GergelyRisko
fingertree5042.0Generic finger-tree structure, with example instances (bsd3, data-structures, library)RossPaterson
fingertree-psqueue130.0Implementation of priority search queues as finger trees. (bsd3, data-structures, library)CaleGibbard
fingertree-tf90.0Generic finger-tree structure using type families. (bsd3, data, data-structures, library)pawel834
finite-field120.0Finite Fields (algebra, bsd3, data, library, math)MasahiroSakai
finite-typelits112.0A type inhabited by finitely many values, indexed by type-level naturals. (bsd3, data, library)mniip
firefly161.5A simple HTTP server framework (bsd3, library, web)
firefly-example160.0A simple example using Firefly (bsd3, program, web)
first-and-last30.0First and Last generalized to return up to n values (bsd3, data, library)andrus
first-class-patterns120.0First class patterns and pattern matching, using type families (bsd3, data, library)BrentYorgey, ReinerPope
firstify30.0Defunctionalisation for Yhc Core (bsd3, development, library, program)NeilMitchell
fit100.0FIT file decoder (bsd3, data, fitness, library, parsing)mgiles
fitspec180.0refining property sets for testing Haskell programs (benchmark, bsd3, library, testing)rudymatela
fix-imports170.0Program to manage the imports of a haskell module (bsd3, editor, haskell, ide, program)EvanLaforge
fix-symbols-gitit60.0Gitit plugin: Turn some Haskell symbols into pretty math symbols. (bsd3, library, text)ConalElliott
fixed392.0Signed 15.16 precision fixed point arithmetic (bsd3, library, numeric)EdwardKmett
fixed-length100.0Lists with statically known length based on non-empty package. (bsd3, data, library)HenningThielemann
fixed-list50.0A fixed length list type (bsd3, data, library)JobVranish
fixed-precision100.0Fixed Precision Arithmetic (bsd3, library, math)EdwardKmett
fixed-storable-array50.0Fixed-size wrapper for StorableArray, providing a Storable instance. Deprecated - use storable-static-array instead. (bsd3, ffi, library)CarlHowells
fixed-vector420.0Generic vectors with statically known size. (bsd3, data, library)AlexeyKhudyakov
fixed-vector-binary40.0Binary instances for fixed-vector (bsd3, data, library)AlexeyKhudyakov
fixed-vector-cereal20.0Cereal instances for fixed-vector (bsd3, data, library)AlexeyKhudyakov
fixed-vector-hetero160.0Generic heterogeneous vectors (bsd3, data, library)AlexeyKhudyakov
fixed-width30.0Fixed width subsets of an Int64/Word64. (bsd3, library, web)sasinestro
fixedprec110.0A fixed-precision real number type (bsd3, data, library, math)PeterSelinger
fixie60.0Opininated testing framework for mtl style (spies, stubs, and mocks) (bsd3, library, test)jxv
fixplate110.0Uniplate-style generic traversals for optionally annotated fixed-point types. (bsd3, generics, library)BalazsKomuves
fixpoint60.0Data types as fixpoints (bsd3, data, library)RomanLeshchinskiy
fizz-buzz80.0Functional Fizz/Buzz (bsd3, library, math)AlanHawkins
fizzbuzz50.0test (bsd3, game, library)paperlefthand
flac80.0Complete high-level binding to libFLAC (audio, bsd3, codec, library)mrkkrp
flac-picture60.0Support for writing picture to FLAC metadata blocks with JuicyPixels (audio, bsd3, codec, image, library)mrkkrp
flamingra60.0FlameGraphs of profiling (bsd3, development, library, program)AntonNikishaev
flat82.0Principled and efficient bit-oriented binary serialization. (bsd3, data, library, parsing, serialization)PasqualinoAssini
flat-maybe10.0Strict Maybe without space and indirection overhead (bsd3, data, library)AndrasKovacs
flay40.0Work on your datatype without knowing its shape nor its contents. (bsd3, data, library)RenzoCarbonara
flexible-unlit30.0A configurable reimplementation of unlit (bsd3, development, library, program)StijnVanDrongelen
flexiwrap60.0Flexible wrappers (bsd3, data, library)IainAlexander
flexiwrap-smallcheck10.0SmallCheck (Serial) instances for flexiwrap (bsd3, data, library)IainAlexander
flickr150.0Haskell binding to the Flickr API (bsd3, library, program, web)SigbjornFinne
flight-igc40.0A parser for IGC files. (bsd3, data, library, parsing, program)philderbeast
flippers30.0Variations on flip for multiple arguments (bsd3, library, other)ChristianMarie
flite70.0f-lite compiler, interpreter and libraries (bsd3, compiler, library)JasonReich
flo40.0Generate flow charts from your code base. (bsd3, development, library, program)ChrisDone
float-binstring40.0C99 printf "%a" style formatting and parsing (bsd3, data, library, numerical)AntonNikishaev
floating-bits50.0Conversions between floating and integral values. (benchmark, bsd3, data, library)JonasScholl
floatshow150.0Alternative faster String representations for Double and Float, String representations for more general numeric types. (bsd3, library, text)DanielFischer
flow2dot310.0Library and binary to generate sequence/flow diagrams from plain text source (bsd3, library, program, tool)DmitryAstapov
flowdock-rest10.0Flowdock REST API (bsd3, library, web)phadej
flowlocks-framework40.0Generalized Flow Locks Framework (bsd3, library, security)NiklasBroberg
fmark20.0A Friendly Markup language without syntax. (bsd3, program, typography)JoseLopes
fmlist2520.0FoldMap lists (bsd3, data, library)SjoerdVisscher
fmt280.0A new formatting library (bsd3, library, text)Artyom
fold-debounce140.0Fold multiple events that happen in a given period of time. (bsd3, control, library)debugito
fold-debounce-conduit100.0Regulate input traffic from conduit Source with Control.FoldDebounce (bsd3, conduit, library)debugito
foldl4892.25Composable, streaming, and efficient left folds (bsd3, control, library)GabrielGonzalez
foldl-statistics202.0Statistical functions from the statistics package implemented as Folds. (benchmark, bsd3, library, math, statistics)AlexMason
foldl-transduce312.0Transducers for foldl folds. (benchmark, bsd3, control, library)DanielDiazCarrete
foldl-transduce-attoparsec50.0Attoparsec and foldl-transduce integration. (bsd3, control, library)DanielDiazCarrete
folds322.0Beautiful Folding (bsd3, comonads, data, enumerator, library)EdwardKmett, EricMertens, ryanglscott
font-awesome-type30.0A Font Awesome data type enumerating all icon classes (bsd3, library, web)SeanLeather
foobar (deprecated)30.0Initial project template from stack (bsd3, deprecated, library, program, web)parsonsmatt
forbidden-fruit20.0A library accelerates imperative style programming. (bsd3, control, library)minpou
force-layout380.0Simple force-directed layout (bsd3, library, physics)BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
forecast-io40.0A Haskell library for working with forecast.io data. (bsd3, library, web)stormont
foreign-storable-asymmetric20.0Types and instances for implementing a Storable with different peek and poke (bsd3, foreign, library)AndrewMiller
foreign-store162.0Store a stable pointer in a foreign context to be retrieved later. (bsd3, development, library)ChrisDone, esz
foreign-var30.0Encapsulating mutatable state in external libraries (bsd3, ffi, library, mutable-state)EdwardKmett
forest-fire1310.0Recursively delete CloudFormation stacks and their dependants (bsd3, library, program, silly-tool)
forger (deprecated)20.0Library for generating fake placeholder data (bsd3, deprecated, library, program, text)StefanFischer
forkable-monad60.0An implementation of forkIO for monad stacks. (bsd3, concurrent, library)DavidAnderson
forma70.0Parse and validate forms in JSON format (bsd3, library, web)mrkkrp
formattable30.0Business-quality formatting of numbers, dates, and other things (bsd3, library, text)DougBeardsley
formatting3792.0Combinator-based type-safe formatting (like printf() or FORMAT) (bsd3, library, text)ChrisDone
formlets (deprecated in favor of digestive-functors)450.0Formlets implemented in Haskell (bsd3, deprecated, library, text, user-interfaces, web, xml)ChrisEidhof, DougBeardsley
formlets-hsp (deprecated in favor of digestive-functors-hsp)40.0HSP support for Formlets (bsd3, deprecated, library, text, user-interfaces, web, xml)JeremyShaw
foscam-directory80.0Foscam File format (bsd3, data, file, library)TonyMorris
foscam-filename30.0Foscam File format (bsd3, data, file, library, parsing)TonyMorris
foscam-sort30.0Foscam File format (bsd3, data, file, library, parsing, program)TonyMorris
foundation12852.5Alternative prelude with batteries and no dependencies (bsd3, foundation, library)MichaelSnoyman, VincentHanquez, nicolasdp
foundation-edge40.0foundation's edge with the conventional set of packages (bsd3, foundation, library)VincentHanquez
fountain100.0A fountain codec. (bsd3, codec, library)RubenAstudillo, TomHawkins
fpco-api200.0Simple interface to the FP Complete IDE API. (bsd3, development, library)ChrisDone, MichaelSnoyman
fpipe40.0F#-style composition and application (bsd3, library, unclassified)BenSchulz
fpnla40.0A library for NLA operations (bsd3, library, math)mblanco
fpnla-examples20.0Example implementations for FPNLA library (bsd3, library, math, parallelism)mblanco
fptest40.0IEEE754r floating point conformance tests (bsd3, math, program)jrp
fractal40.0Draw Newton, Julia and Mandelbrot fractals (bsd3, graphics, program)MaxRabkin
fractals10.0A collection of useful fractal curve encoders (bsd3, library, math)sdekker
fraction180.0Fractions (bsd3, data, library)WolfgangJeltsch
frame30.0A simple web framework. (bsd3, library, program, web)AdamDunkley
frame-markdown30.0A markdown to Frame GUI writer for Pandoc (bsd3, library, web)AdamDunkley
franchise150.0A package for configuring and building Haskell software (bsd3, distribution, library)DavidRoundy
fraxl22.25Cached and parallel data fetching. (bsd3, concurrency, library)willfancher
free14872.5Monads for free (bsd3, control, library, monads)EdwardKmett, EricMertens
free-functors580.0Free functors, adjoint to functors that forget class constraints. (bsd3, data, library, math)SjoerdVisscher
free-game480.0Create games for free (bsd3, graphics, library, monads)FumiakiKinoshita
free-operational60.0Operational Applicative, Alternative, Monad and MonadPlus from free types. (bsd3, control, library)LuisCasillas
free-vector-spaces60.0Instantiate the classes from the vector-space package with types from linear (bsd3, library, math)leftaroundabout
free-vl80.0van Laarhoven encoded Free Monad with Extensible Effects (bsd3, control, library, monads, program)aaronlevin
freenect140.0Interface to the Kinect device. (bsd3, graphics, library)ChrisDone
freer152.25Implementation of the Freer Monad (benchmark, bsd3, control, library, program)alleledev
freer-converse50.0Handle effects conversely using monadic conversation (bsd3, library, testing)RobertHensing
freer-effects82.0Implementation of effect system for Haskell. (benchmark, bsd3, control, library, program)MatejKollar, PeterTrsko, TomasJanousek
freesect40.0A Haskell syntax extension for generalised sections (bsd3, language, program)AndrewSeniuk
freesound100.0Access the Freesound Project database (bsd3, library, sound, web)StefanKersten
freetype290.0Haskell binding for FreeType 2 library (bsd3, graphics, library)JasonDagit, Mokosha
french-cards40.0French Playing Cards (bsd3, game, library)TarasSerduke
friday-juicypixels80.0Converts between the Friday and JuicyPixels image types (bsd3, codec, library)ThomasDuBuisson
friday-scale-dct20.0Scale Friday images with DCT (bsd3, graphics, library)AlexMason
friendly-time170.0Print time information in friendly ways (bsd3, library, web, yesod)PatrickBrisbin
frisby60.0Linear time composable parser for PEG grammars (bsd3, library, text)ChrisDone
from-sum80.0Canonical fromMaybeM and fromEitherM functions. (bsd3, control, library)cdepillabout
frpnow132.5Principled practical FRP (bsd3, control, library)AtzeVanDerPloeg
frpnow-gloss40.0Program awesome stuff with Gloss and frpnow! (bsd3, control, library)AtzeVanDerPloeg
frpnow-gtk40.0Program GUIs with GTK and frpnow! (bsd3, control, library)AtzeVanDerPloeg
frpnow-gtk340.0Program GUIs with GTK3 and frpnow! (bsd3, library, ui)gtsteel
frquotes50.0Lexical extension for Quasi-Quotations using French-Quotes (bsd3, library, program, text)NicolasPouillard
fs-events20.0A haskell binding to the FSEvents API (bsd3, library, system)NickPartridge
fsharp (deprecated)60.0some F# operators, high priority pipes (bsd3, control, deprecated, library)Heather
fsmActions180.0Finite state machines and FSM actions (bsd3, data, library)AndyGimblett
fsnotify7292.0Cross platform library for file change notification. (bsd3, filesystem, library)GregWeber, MarkDittmer, RaphaelJavaux, RomanCheplyaka
fst80.0Finite state transducers (bsd3, compilers-interpreters, library, program)GwernBranwen, JohnCamilleri, ThomasHallgren
fswait160.0Wait and observe events on the filesystem for a path, with a timeout (bsd3, program, tools)ParnellSpringmeyer
fswatch390.0File System watching tool with cli and slave functionalities. (bsd3, filesystem, library, program)kelemzol
fswatcher80.0Watch a file/directory and run a command when it's modified (bsd3, program, tools)ErlendHamberg
ftdi80.0A thin layer over USB to communicate with FTDI chips (bsd3, system)RoelVanDijk
ftp-conduit60.0FTP client package with conduit interface based off http-conduit (bsd3, conduit, library, network)MylesMaxfield
ftree40.0Depth-typed functor-based trees, both top-down and bottom-up (bsd3, data, library)ConalElliott
fugue20.0A recapitulated prelude with minimal dependencies and profligate exports. (bsd3, development, library)AlecHeller
full-sessions160.0a monad for protocol-typed network programming (bsd3, control, library, network)KeigoImai
full-text-search230.0In-memory full text search engine (bsd3, data, library, search, text)DuncanCoutts, MikolajKonarski
fullstop130.0Simple sentence segmenter (bsd3, library, natural-language-processing, program)EricKow, RoganCreswick
function-combine40.0Combining functions (bsd3, control, library)IainAlexander
function-instances-algebra10.0Instances of the Algebra.* classes for functions (bsd3, library, math)TobiasBrandt
functional-arrow30.0Combinators that allow for a more functional/monadic style of Arrow programming (bsd3, combinators, library)HenningThielemann
functional-kmp30.0KMP implemented on haskell's built-in cons-cell-based lists. (bsd3, data, library)mniip
functor-apply (deprecated in favor of semigroupoids)430.0This package has been subsumed by semigroupoids (bsd3, control, deprecated, library)EdwardKmett
functor-classes-compat50.0Data.Functor.Classes instances for core packages (bsd3, data, library)phadej
functor-combo330.0Functor combinators with tries & zippers (bsd3, data, library)ConalElliott
functorm50.0Data.FunctorM (compatibility package) (bsd3, generics, library)StefanORear
functors40.0(.:) and friends, syntax for Functor and Applicative. (bsd3, control, library)AristidBreitkreuz
funion40.0A unioning file-system using HFuse (bsd3, program, system)NathanWiegand
funpat20.0A generalization of pattern matching (bsd3, language, library)GergelyDevai
funsat170.0A modern DPLL-style SAT solver (algorithms, bsd3, library, program)DenisBueno
fusion (deprecated in favor of streaming)50.0Effectful streaming library based on shortcut fusion techniques (bsd3, data, deprecated, library)JohnWiegley
future100.0Supposed to mimics and enhance proposed C++ "future" features (bsd3, concurrency, library)ChrisKuklewicz
fuzzcheck50.0A simple checker for stress testing monadic code (bsd3, library, testing)JohnWiegley
fwgl (deprecated in favor of ombra)112.25Game engine (bsd3, deprecated, game, game-engine, javascript, library)ZioCrocifisso
fwgl-glfw (deprecated in favor of ombra)60.0FWGL GLFW backend (bsd3, deprecated, game, game-engine, library)ZioCrocifisso
fwgl-javascript (deprecated in favor of ombra)70.0FWGL GHCJS backend (bsd3, deprecated, game, game-engine, javascript, library)ZioCrocifisso
game-probability50.0Simple probability library for dice rolls, card games and similar (bsd3, library, math)NeilBrown
gang-of-threads90.0Non-deterministic parallelism with bags (bsd3, control, library, parallelism)bholst
garsia-wachs80.0A Functional Implementation of the Garsia-Wachs Algorithm (algorithms, bsd3, library)NicolasPouillard
gasp70.0A framework of algebraic classes (algebra, bsd3, library)JeanPhilippeBernardy
gbu20.0planar graph embedding into a plane (bsd3, graph, library)DaneelYaitksov
gc72.0Poor Richard's Memory Manager (bsd3, data, library)EdwardKmett, EricMertens, ryanglscott
gc-monitoring-wai50.0a wai application to show GHC.GCStats (bsd3, library, web)YiHuang
gcodehs30.0GCode processor (bsd3, library, parsing, program)srk
gd380.0A Haskell binding to a subset of the GD graphics library (bsd3, graphics, library)BjornBringert, ChrisDone
gdiff170.0Generic diff and patch (bsd3, data, library)AndresLoeh, EelcoLempsink
gdiff-ig40.0Generic diff for the instant-generics library (bsd3, generics, library)JosePedroMagalhaes
gdiff-th110.0Generate gdiff GADTs and Instances. (bsd3, generics, library, testing)JonathanFischoff
geek110.0Geek blog engine (bsd3, library, web)JinjingWang
gen-passwd60.0Create wordlist-based passwords easily (bsd3, cli, program)anfelor
gencheck30.0A testing framework inspired by QuickCheck and SmallCheck (bsd3, library, testing)JacquesCarette
gendocs100.0Library for generating interface documentation from types (bsd3, library, web)seanhess
general-prelude (deprecated)40.0Prelude replacement using generalized type classes where possible (bsd3, control, data, deprecated, library)JohnWiegley
generator130.0Python-generators notation for creation of monadic lists (bsd3, control, library)YairChuchem
generators (deprecated)80.0Actually useful monadic random value generators. (bsd3, control, deprecated, library)LiamOConnorDavis
generic-accessors160.0stringly-named getters for generic data (bsd3, data, library)GregHorn
generic-aeson250.0Derivation of Aeson instances using GHC generics. (bsd3, data, library)AdamBergmark, ErikHesselink
generic-binary30.0Generic Data.Binary derivation using GHC generics. (bsd3, data, generics, library)SebastiaanVisser
generic-deepseq50.0Generic deep evaluation of data structures (bsd3, control, generics, library)MaximeHenrion
generic-deriving8980.0Generic programming library for generalised deriving. (bsd3, generics, library)JosePedroMagalhaes, ryanglscott
generic-lens262.0Generic data-structure operations exposed as lenses. (bsd3, generics, lens, library, records)kcsongor
generic-maybe100.0A generic version of Data.Maybe (benchmark, bsd3, generics, library)JonathanFischoff
generic-records40.0Magic record operations using generics (bsd3, generics, library, records)kcsongor
generic-server30.0Simple generic TCP/IP server (bsd3, library, network)IlyaPortnov
generic-storable10.0Generic implementation of Storable (bsd3, data, library)HideyukiTanaka
generic-trie132.0A map, where the keys may be complex structured data. (bsd3, data, library)EricMertens
generic-xml20.0Marshalling Haskell values to/from XML (bsd3, library, xml)ShaeErisson
generic-xmlpickler140.0Generic generation of HXT XmlPickler instances using GHC Generics. (bsd3, data, library, xml)AdamBergmark, ErikHesselink
generics-eot62.0A library for generic programming that aims to be easy to understand (bsd3, generics, library)SoenkeHahn
generics-sop4232.5Generic Programming using True Sums of Products (bsd3, generics, library)AndresLoeh, EdskoDeVries
generics-sop-lens60.0Lenses for types in generics-sop (bsd3, library, web)phadej
genericserialize50.0Serialization library using Data.Generics (bsd3, data, library)GwernBranwen
genetics20.0A Genetic Algorithm library (bsd3, machine-learning, program)AndrewPennebaker
genifunctors160.0Generate generalized fmap, foldMap and traverse (bsd3, generics, library)DanRosen
geniplate220.0Use Template Haskell to generate Uniplate-like functions. (bsd3, generics, library)LennartAugustsson
geniplate-mirror1522.0Use Template Haskell to generate Uniplate-like functions. (bsd3, generics, library)DanRosen
genprog60.0Genetic programming library (ai, algorithms, bsd3, library, optimisation)JanSnajder
gentlemark10.0Gentle markup language (bsd3, library, text, web)AndriyPolishchuk
geo-uk50.0High precision conversion between GPS and UK Grid (bsd3, data, library)tolysz
geocalc30.0Libary for calculating distances between two coordinates in WSG84 (bsd3, library, math)GeroKriependorf
geocode-google20.0Geocoding using the Google Web API (bsd3, geography, library)mdanish
geodetic100.0Geodetic calculations (bsd3, development, library)TonyMorris
geodetics70.0Terrestrial coordinate systems and geodetic calculations. (bsd3, geography, library)PaulJohnson
geohash70.0Geohash latitudes and longitudes. (bsd3, data, library)MariusEriksen
geoip2330.0Pure haskell interface to MaxMind GeoIP database (bsd3, database, library)ondrap
geojson120.0A thin GeoJSON Layer above the aeson library (bsd3, data, library)domdere
geojson-types40.0GeoJSON data types including JSON/BSON conversion. (bsd3, data, library)alios
geolite-csv30.0Geolite CSV Parser (bsd3, library, web)andrewthad
getemx20.0Fetch from emusic using .emx files (bsd3, program, web)BenWolfson
getopt-generics350.0Create command line interfaces with ease (bsd3, console, library, system)SoenkeHahn, qoelet
getopt-simple30.0A "System.Console.GetOpt" wrapper to make simple use case easy. (bsd3, library, system)AlexanderBondarenko
gh-pocket-knife30.0Script helpers for interacting with GitHub (bsd3, library, network, program)PatrickBrisbin
ghc52.0The GHC API (bsd3, development, library)HerbertValerioRiedel
ghc-boot260.0Shared functionality between GHC and its boot libraries (bsd3, ghc, library)HerbertValerioRiedel
ghc-boot-th3840.0Shared functionality between GHC and the @template-haskell@ library (bsd3, ghc, library)HerbertValerioRiedel
ghc-compact90.0In memory storage of deeply evaluated data structure (bsd3, data, library)HerbertValerioRiedel
ghc-core370.0Display GHC's core and assembly output in a pager (bsd3, development, program)DonaldStewart, ShachafBenKiki
ghc-core-html60.0Core to HTML display (bsd3, development, program)VincentHanquez
ghc-datasize70.0Determine the size of data structures in GHC's memory (bsd3, debug, development, ghc, library)DennisFelsing
ghc-dump-tree50.0Dump GHC's parsed, renamed, and type checked ASTs (bsd3, development, library, program)EdskoDeVries
ghc-dup20.0Explicitly prevent sharing (bsd3, debug, ghc, library)JoachimBreitner
ghc-events410.0Library and tool for parsing .eventlog files from GHC (bsd3, debug, development, ghc, library, profiling, program, trace)DuncanCoutts, MikolajKonarski, MitsutoshiAoe, SimonMarlow
ghc-events-analyze82.0Analyze and visualize event logs (bsd3, development, profiling, program, trace)EdskoDeVries
ghc-events-parallel60.0Library and tool for parsing .eventlog files from parallel GHC (bsd3, debug, development, eden, ghc, library, profiling, program, trace)MischaDieterle, JostBerthold, horstmeyer
ghc-exactprint532.5ExactPrint for GHC (bsd3, development)AlanZimmerman, mpickering
ghc-gc-tune80.0Graph performance of Haskell programs with different GC flags (bsd3, development, program)DonaldStewart
ghc-heap-view580.0Extract the heap representation of Haskell values and thunks (bsd3, debug, ghc, library)JoachimBreitner
ghc-imported-from240.0Find the Haddock documentation for a symbol. (bsd3, development, library, program)CarloHamalainen
ghc-make80.0Accelerated version of ghc --make (bsd3, development, program)NeilMitchell
ghc-man-completion30.0Generate a bash completion from the GHC manpage (bsd3, development, ghc, program, system, tools)JoeQuinn
ghc-mtl310.0An mtl compatible version of the Ghc-Api monads and monad-transformers. (bsd3, development, library)DanielGorin
ghc-parmake120.0A parallel wrapper for 'ghc --make'. (bsd3, development, library, program)MikhailGlushenkov
ghc-paths6700.0Knowledge of GHC's installation directories (bsd3, development, library)SimonMarlow
ghc-pkg-autofix130.0Simple utility to fix BROKEN package dependencies for cabal-install. (bsd3, development, program)HiromiIshii
ghc-pkg-lib200.0Provide library support for ghc-pkg information (bsd3, development, library)JeanPhilippeMoresmau
ghc-prim3610.0GHC primitives (bsd3, ghc, library)HerbertValerioRiedel
ghc-prof320.0Library for parsing GHC time and allocation profiling reports (bsd3, development, library)MitsutoshiAoe
ghc-server40.0None (bsd3, library, unclassified)
ghc-srcspan-plugin70.0Generic GHC Plugin for annotating Haskell code with source location data. (bsd3, language, library)EricSeidel
ghc-syb160.0Data and Typeable instances for the GHC API. (bsd3, development, library)ThomasSchilling, DanielG
ghc-syb-utils4441.5Scrap Your Boilerplate utilities for the GHC API. (bsd3, development, library)ThomasSchilling, DanielG
ghc-time-alloc-prof (deprecated in favor of ghc-prof)60.0Library for parsing GHC time and allocation profiling reports (bsd3, deprecated, development, library)MitsutoshiAoe
ghc-timers40.0Provides bindings to functions starting and stopping the RTS timers (bsd3, library, system)FrancescoMazzoli
ghc-typelits-presburger50.0Presburger Arithmetic Solver for GHC Type-level natural numbers. (bsd3, library, math, type-system)HiromiIshii
ghc-usage40.0Print minimal export lists (bsd3, development, library, program)EdwardYang
ghc-vis362.0Live visualization of data structures in GHCi (bsd3, debug, development, ghc, library)DennisFelsing
ghci240.0The library supporting GHC's interactive interpreter (bsd3, ghc, library)HerbertValerioRiedel
ghci-diagrams (deprecated in favor of activehs)40.0Display simple diagrams from ghci (bsd3, deprecated, graphics, library)PeterDivianszky
ghci-haskeline80.0An implementation of ghci using the Haskeline line-input library. (bsd3, compilers-interpreters, program)JudahJacobson
ghci-ng80.0Next generation GHCi (bsd3, development, program)ChrisDone, HerbertValerioRiedel
ghcid512.5GHCi based bare bones IDE (bsd3, development, library, program)NeilMitchell
ghcjs-base-stub420.0Allow GHCJS projects to compile under GHC and develop using intero. (bsd3, library, web)louispan
ghcjs-fetch150.0GHCJS bindings for the JavaScript Fetch API (bsd3, library, web)cocreature
ghcjs-promise50.0Bidirectional bidings to javascript's promise. (bsd3, data, library)AlejandroDuranPallares
ghcjs-xhr30.0XmlHttpRequest ("AJAX") bindings for GHCJS (bsd3, library, web)TobiasDammers
ghclive40.0Interactive Haskell interpreter in a browser. (application, bsd3, compilers-interpreters, library, program, web)ShaeErisson
ghczdecode40.0Decode Z-encoded strings from GHC (bsd3, development, program)EyalLotem
ghost-buster170.0Existential type utilites (bsd3, data, library)lazersmoke
giphy-api150.0Giphy HTTP API wrapper and CLI search tool. (bsd3, library, web)passy
git62.0Git operations in haskell (bsd3, development, library)VincentHanquez
git-all70.0Determine which Git repositories need actions to be taken (bsd3, development, program)JohnWiegley
git-fmt260.0Custom git command for formatting code. (bsd3, development, program)hjwylde
git-freq50.0A Git subcommand to show total addition, deletion per file (bsd3, program, unclassified)DaisukeFujimura
git-gpush100.0More intelligent push-to-GitHub utility. (bsd3, development, program)JohnWiegley
git-jump60.0Move a git branch (bsd3, development, program)EyalLotem
git-monitor250.0Passively snapshots working tree changes efficiently. (bsd3, development, program)JohnWiegley
git-object (deprecated in favor of gitlib)60.0Git object and its parser (bsd3, data, deprecated, library)KazuYamamoto
git-vogue210.0A framework for pre-commit checks. (bsd3, development, library, program)ChristianMarie, oswynb
gitHUD150.0More efficient replacement to the great git-radar (bsd3, development, library, program)gbataille
gitcache50.0Simple git utility to use and manage clone cache (bsd3, program, tools)VincentHanquez
github410.0Access to the GitHub API, v3. (bsd3, library, network)JohnWiegley, MaxwellSwadling, MikeBurns, phadej, cesar_nataren
github-post-receive90.0GitHub webhooks library (bsd3, library, web)ShoheiYasutake
github-utils10.0Useful functions that use the GitHub API (bsd3, library, network)RobinGreen
gitignore60.0Apply GitHub .gitignore templates to already existing repositories. (bsd3, development, program)RickyElrod
gitrev5452.25Compile git revision info into Haskell projects (bsd3, development, library)AdamFoltzer
gitter72.0Gitter.im API client (api, bsd3, library, network)cblp
givegif30.0CLI Giphy search tool with previews in iTerm 2 (bsd3, console, library, program)passy
gjk2d430.0 (bsd3, graphics, library)
gl320.0Complete OpenGL raw bindings (bsd3, graphics, library)EdwardKmett, Polarina
gl-capture30.0simple image capture from OpenGL (bsd3, graphics, library)ClaudeHeilandAllen
glabrous240.0A template DSL library (bsd3, library, text, web)MichelBoucey
gladexml-accessor20.0Automagically declares getters for widget handles in specified interface file. (bsd3, gui, library)YakovZaytsev
glambda42.0A simply typed lambda calculus interpreter, written with GADTs (bsd3, compilers-interpreters, library, program)RichardEisenberg
glasso40.0Graphical Lasso algorithm (bsd3, library, math)kaizhang
glaze90.0Framework for rendering things with metadata/headers and values (bsd3, library, text)louispan
glazier310.0Composable widgets framework with enhanced with transformers and lens. (bsd3, frp, gui, library)louispan
glazier-pipes140.0A threaded rendering framework using glaizer and pipes (bsd3, frp, library)louispan
glazier-react170.0ReactJS binding using Glazier and Pipes.Fluid (bsd3, gui, library, web)louispan
glazier-react-examples60.0Examples of using glazier-react (bsd3, gui, program, web)louispan
glazier-react-widget170.0Generic widget library using glazier-react (bsd3, gui, library, web)louispan
gli50.0Tiny cli to fetch PR info from gitlab (bsd3, cli, library, program)goromlagche
glider-nlp50.0Natural Language Processing library (bsd3, library, nlp, text)klangner
glintcollider60.0A simple ray tracer in an early stage of development. (bsd3, graphics, program)ColinHill
gll170.0GLL parser with simple combinator interface (bsd3, compilers, library)ltvanbinsbergen
global40.0Library enabling unique top-level declarations (bsd3, data, language, library, system)ByronJohnson
global-config60.0Global mutable configuration (bsd3, configuration, library)AlexanderDorofeev
global-lock20.0A global lock implemented without unsafePerformIO (bsd3, concurrency, library, system)KeeganMcAllister
global-variables40.0Namespaced, global, and top-level mutable variables without unsafePerformIO. (bsd3, data, library, reflection)JeanMarieGaillourdet
gloss-accelerate90.0Extras to interface Gloss and Accelerate (bsd3, graphics, library)TrevorMcDonell
gloss-devil20.0Display images in Gloss using libdevil for decoding (bsd3, graphics, library)ThomasDuBuisson
gloss-game60.0Gloss wrapper that simplifies writing games (bsd3, game, graphics, library)ManuelChakravarty
gloss-juicy110.0Load any image supported by Juicy.Pixels in your gloss application (bsd3, graphics, library, program)AlpMestanogullari
gloss-raster-accelerate110.0Parallel rendering of raster images using Accelerate (bsd3, graphics, library)TrevorMcDonell
glpk-hs340.0Comprehensive GLPK linear programming bindings (bsd3, library, math)JeanPhilippeBernardy, LouisWasserman
glue (deprecated in favor of glue-common, glue-core, glue-ekg, glue-example)70.0Make better services. (bsd3, deprecated, library, network, program)seanparsons
glue-common130.0Make better services and clients. (bsd3, library, network)seanparsons
glue-core130.0Make better services and clients. (bsd3, library, network)seanparsons
glue-ekg150.0Make better services and clients. (bsd3, library, network)seanparsons
glue-example130.0Make better services and clients. (bsd3, network, program)seanparsons
gluturtle380.0turtle like LOGO with glut (bsd3, library, teaching)YoshikuniJujo
gmap30.0Composable maps and generic tries. (bsd3, data-structures, library)JamieBrandon
gnss-converters1160.0GNSS Converters. (bsd3, library, network, program)peddie, markfine, mookerji
gnuplot560.02D and 3D plots using gnuplot (bsd3, graphics, library, math)HenningThielemann
goa120.0GHCi bindings to lambdabot (bsd3, library, system)GwernBranwen
goal-core10.0Core imports for Geometric Optimization Libraries. (bsd3, library, math, program)alex404
goal-geometry20.0Scientific computing on geometric objects (bsd3, library, math, program)alex404
goal-probability20.0Manifolds of probability distributions (bsd3, library, math, program)alex404
goal-simulation20.0Mealy based simulation tools (bsd3, library, math, program)alex404
gofer-prelude110.0The Gofer 2.30 standard prelude (bsd3, data, library)DonaldStewart
google-dictionary (deprecated)50.0Simple interface to the google.com/dictionary API (bsd3, data, deprecated, library)mitchellwrosen
google-html5-slide50.0Google HTML5 Slide generator (bsd3, program, web)HideyukiTanaka
google-mail-filters60.0Write GMail filters and output to importable XML (bsd3, data, library, web, xml)LiyangHu
google-maps-geocoding120.0Google Maps Geocoding API bindings (bsd3, library, web)mpilgrem
google-oauth2-for-cli60.0Get Google OAuth2 token for CLI tools (bsd3, library, web)ishiy
google-oauth2-jwt170.0Get a signed JWT for Google Service Accounts (bsd3, google, library)MichelBoucey
google-search70.0EDSL for Google and GMail search expressions (bsd3, language, library, text, web)LiyangHu
google-static-maps260.0Bindings to the Google Static Maps API (bsd3, library, web)mpilgrem
google-translate122.25Google Translate API bindings (bsd3, library, web)DavidJohnson
googleplus90.0Haskell implementation of the Google+ API v1 (bsd3, library, web)MichaelXavier
gore-and-ash60.0Core of FRP game engine called Gore&Ash (bsd3, game, library)NCrashed
gore-and-ash-actor50.0Gore&Ash engine extension that implements actor style of programming (bsd3, game, library)NCrashed
gore-and-ash-async80.0Core module for Gore&Ash engine that embeds async IO actions into game loop. (bsd3, game, library)NCrashed
gore-and-ash-demo50.0Demonstration game for Gore&Ash game engine (bsd3, game, program)NCrashed
gore-and-ash-glfw50.0Core module for Gore&Ash engine for GLFW input events (bsd3, game, library)NCrashed
gore-and-ash-lambdacube20.0Core module for Gore&Ash engine that do something. (bsd3, game, library)NCrashed
gore-and-ash-logging70.0Core module for gore-and-ash with logging utilities (bsd3, game, library)NCrashed
gore-and-ash-network90.0Core module for Gore&Ash engine with low level network API (bsd3, game, library)NCrashed
gore-and-ash-sdl50.0Gore&Ash core module for integration with SDL library (bsd3, game, library)NCrashed
gore-and-ash-sync40.0Gore&Ash module for high level network synchronization (bsd3, library, web)NCrashed
gotta-go-fast190.0A command line utility for practicing typing (application, bsd3, program)callum_oakley
gpah40.0Generic Programming Use in Hackage (bsd3, generics, program)JohanJeuring
gpcsets70.0Generalized Pitch Class Sets for Haskell. (bsd3, data, library)BruceMcCosa
gpio40.0Haskell GPIO interface, designed specifically for the RaspberryPi. (bsd3, hardware, library, program)tgolson
gpolyline60.0Pure module for encoding/decoding Google Polyline (bsd3, graphics, library)FinnEspenGundersen
gps480.0For manipulating GPS coordinates and trails. (bsd3, data, library)ThomasDuBuisson
gps2htmlReport90.0GPS to HTML Summary Report (bsd3, data, library, program)RobStewart
gpx-conduit20.0Read GPX files using conduits (bsd3, data, library)RyanTrinkle, ThomasDuBuisson
graceful80.0Library to write graceful shutdown / upgrade service. (bsd3, library, system)NoriyukiOhkawa
graflog330.0Monadic correlated log events (bsd3, library, logging)marnold
grammatical-parsers180.0parsers that can combine into grammars (benchmark, bsd3, library, program, text)MarioBlazevic
grapefruit-examples180.0Examples using the Grapefruit library (bsd3, frp, gui, library, reactivity, user-interfaces)WolfgangJeltsch
grapefruit-frp170.0Functional Reactive Programming core (bsd3, frp, library, reactivity)WolfgangJeltsch
grapefruit-records180.0A record system for Functional Reactive Programming (bsd3, data, frp, library, reactivity)WolfgangJeltsch
grapefruit-ui180.0Declarative user interface programming (bsd3, frp, gui, library, reactivity, user-interfaces)WolfgangJeltsch
grapefruit-ui-gtk150.0GTK+-based backend for declarative user interface programming (bsd3, frp, gui, library, reactivity, user-interfaces)WolfgangJeltsch
graph-rewriting310.0Monadic graph rewriting of hypergraphs with ports and multiedges (bsd3, graphs, library)JanRochel
graph-rewriting-cl (deprecated in favor of graph-rewriting-trs)20.0Interactive graph rewriting system implementing various well-known combinators (application, bsd3, deprecated, graphs, program)JanRochel
graph-rewriting-gl340.0OpenGL interface for interactive port graph rewriting (bsd3, graphics, graphs, library)JanRochel
graph-rewriting-lambdascope350.0Lambdascope, an optimal evaluator of the lambda calculus, as an interactive graph-rewriting system (application, bsd3, compilers-interpreters, program)JanRochel
graph-rewriting-layout250.0Force-directed node placement intended for incremental graph drawing (bsd3, graphics, graphs, library)JanRochel
graph-rewriting-ski340.0Two evalutors of the SKI combinator calculus as interactive graph rewrite systems (application, bsd3, compilers-interpreters,