Packages tagged mit

2089 packages have this tag.

[Merge tag] (trustees only)

Related tags: library (1903), program (483), web (351), data (255), text (146), network (140), deprecated (137), system (107), development (99), control (96), benchmark (93), testing (90), database (86), graphics (72), language (69), yesod (55), math (53), unclassified (47), game (40), parsing (37), concurrency (29), compilers-interpreters (27), json (25), distribution (22), data-structures (21), prelude (21), ffi (19), xml (18), cryptography (17), foreign (17), algorithms (15), conduit (15), api (14), codec (14), utility (14), numeric (12), sound (12), streaming (12), cloud (11), javascript (11), postgresql (11), console (10), enumerator (10), finance (10), bioinformatics (9), hardware (9), machine-learning (9), number-theory (9), time (9), tools (9), aws (8), hasql (8), logging (8), statistics (8), validity (8), compiler (7), configuration (7), eventsourcing (7), formal-methods (7), logic (7), zift (7), distributed-computing (6), error-handling (6), frp (6), network-apis (6), records (6), serialization (6), education (5), effect (5), generics (5), java (5), jvm (5), parser (5), template-haskell (5), ui (5), user-interfaces (5), utilities (5), algebra (4), codecs (4), compatibility (4), conversion (4), crypto (4), debug (4), exceptions (4), failure (4), ffi-tools (4), geometry (4), html (4), numerical (4), options (4), pipes (4), utils (4), avers (3), bytestring (3), cli (3), combinators (3), data-mining (3), databases (3), generic (3), gui (3), http (3), mobile (3), model (3), monads (3), nix (3), physics (3), pretty-printer (3), service (3), simple (3), string (3), symbolic-computation (3), test (3), acme (2), ai (2), algorithm (2), bio (2), business (2), client (2), command-line-tool (2), containers (2), criu (2), cssyd (2), csv (2), fay (2), functions (2), game-engine (2), geography (2), ghc (2), git (2), github (2), giveyouahead (2), graphs (2), image (2), io (2), lenses (2), monad (2), monitoring (2), natural-language-processing (2), networking (2), nlp (2), optimization (2), pdf (2), preprocessor (2), quasiquotes (2), random (2), security (2), simulation (2), syntax (2), type-system (2), types (2), xmonad (2), anatomy (1), apple (1), application (1), applicative (1), asp (1), attoparsec (1), aviation (1), base (1), benchmarking (1), binary (1), bit-vectors (1), builders (1), calendar (1), captcha (1), charts (1), ...

AAI460.0Abstract Application Interface. (control, library, mit)bash0r
AFSM342.0Arrowized functional state machines (frp, library, mit)hanzhxu
BCMtools100.0Big Contact Map Tools (bioinformatics, library, mit, program)kaizhang
Bang260.0A Drum Machine DSL for Haskell (library, mit, sound)5outh
BufferedSocket230.0A socker wrapper that makes the IO of sockets much cleaner (library, mit, network)tmore
Buster80.0Hits a set of urls periodically to bust caches (mit, program, web)MichaelXavier
Cartesian200.0Coordinate systems (library, math, mit)SwiftsNamesake
ChasingBottoms1160.0For testing partial and infinite values. (library, mit, testing)DonaldStewart, NilsAndersDanielsson
CirruParser (deprecated in favor of cirru-parser)70.0Cirru Parser in Haskell (deprecated, library, mit, text)jiyinyiyong
Commando140.0Watch some files; Rerun a command (development, library, mit, program)LyndonMaydwell
Configger50.0Parse config files (configuration, library, mit)NateSoares
Configurable40.0Declare types as Configurable then specialize them all in one place (control, library, mit)JosephAbrahamson
Conscript60.0Restart a command on STDIN activity (mit, program, system)LyndonMaydwell
Craft3e660.0Code for Haskell: the Craft of Functional Programming, 3rd ed. (education, library, mit, program)SimonThompson
DCFL280.0Communication Free Learning-based constraint solver (data, library, mit)dpandya
DOH252.0Complete API bindings for DigitalOcean API V2 (library, mit, network)yigitozkavci
Dangerous340.0Monads for operations that can exit early and produce warnings (error-handling, library, mit)NateSoares
DataIndex160.0A package for adding index column to data files (benchmark, data, library, mit, program)steven_yhw
Deadpan-DDP620.0Write clients for Meteor's DDP Protocol (library, mit, program, unclassified)LyndonMaydwell
Delta-Lambda140.0A demonstration interpreter for type system delta-lambda (of N.G. De-bruijn) (compilers-interpreters, mit, program)listofoptions
DifferentialEvolution110.0Global optimization using Differential Evolution (algorithms, library, mit, numerical, optimization)VilleTirronen
Dist340.0A Haskell library for probability distributions (library, math, mit)wyager
DocTest (deprecated in favor of doctest)370.0Test interactive Haskell examples (deprecated, mit, program, testing)
EdisonAPI8530.0A library of efficient, purely-functional data structures (API) (data-structures, library, mit)RobertDockins
Feval92.0Evaluation using F-Algebras (language, mit, program)burz
Files140.0File content extraction/rearrangement (io, library, mit, program)steven_yhw
Focus150.0Tools for focusing in on locations within numbers (data, library, mit)NateSoares
Foster140.0Utilities to generate and solve puzzles (benchmark, data, mit, program)Jefffrey
FractalArt252.0Generates colorful wallpapers (graphics, mit, program)TomSmeets
Fractaler40.0 (graphics, mit, program)serprex
GGg110.0GGg cipher (mit, program, text)xnil
GLM180.0Simple Gridlab-D GLM parser and utilities. (language, library, mit, program)LyndonMaydwell
GPipe2170.0Typesafe functional GPU graphics programming (graphics, library, mit)TobiasBexelius
GPipe-GLFW480.0GLFW OpenGL context creation for GPipe (graphics, library, mit)plredmond
GeneralTicTacToe112.0A general TicTacToe game implementation. (game, mit, program)afonsomatos
GiveYouAHead140.0to auto-do somethings (giveyouahead, library, mit)Qinka
GoogleCodeJam220.0A monad for flexible parsing of Google Code Jam input files with automatic parallelization. (library, mit, text)johannesgerer
HDBC-postgresql-hstore (deprecated)40.0Manipulate data in PostgreSQL "hstore" columns. (database, deprecated, library, mit)AlexanderBondarenko
HGE2D270.02D game engine written in Haskell (game, library, mit, program)I3ck
HList460.0Heterogeneous lists (data, library, mit)AdamVogt, GwernBranwen
HTicTacToe90.0An SDL tic-tac-toe game. (game, graphics, mit, program)KorcanHussein
HaPy160.0Haskell bindings for Python (foreign, library, mit)DavidFisher
Hach110.0Simple chat (library, mit, network, program)DmitryMalikov
HaskellTutorials60.0Haskell Tutorials by Evgeny Ukhanov (mit, program, tutorials)mrlsd
Hastodon192.0mastodon client module for Haskell (library, mit, web)syucream
Hate72.0A small 2D game framework. (graphics, library, mit, program)bananu7
Hayoo60.0The Hayoo! search engine for Haskell API search on hackage (data, mit, program, text)UweSchmidt
Holumbus-Searchengine130.0A search and indexing engine. (data, library, mit, text)UweSchmidt
HostAndPort100.0Parser for host and port pairs like localhost:22 (benchmark, library, mit, network)slava
HsHTSLib140.0High level bindings to htslib. (bio, library, mit)kaizhang
HsSyck530.0Fast, lightweight YAML loader and dumper (library, mit, pugs, text)AudreyTang, GwernBranwen, OliverCharles
JYU-Utils100.0Some utility functions for JYU projects (library, mit, utility)VilleTirronen
Jdh90.0A Json implementation for Haskell, with JavaScript Values and Encoding/Decoding (data, library, mit)brunoczim
Ketchup290.0A super small web framework for those who don't like big and fancy codebases (ketchup, library, mit, web)Hamcha
LambdaNet102.0A configurable and extensible neural network library (library, machine-learning, mit)jbarrow
Lambdajudge122.0A library to easily host Haskell based programming competitions (development, library, mit)ankitku
Lazy-Pbkdf2290.0Lazy PBKDF2 generator. (benchmark, cryptography, library, mit)Ofenhed
Limit60.0Wrapper for data that can be unbounded (data, library, mit)NateSoares
Logic40.0Logic (library, math, mit)gogotanaka
Lykah100.0A static website and blog generator (library, mit, program, web)johannesgerer
MTGBuilder150.0Builds decks out of a meta (mit, program, unclassified)willfancher
Michelangelo200.0OpenGL for dummies (graphics, library, mit)SwiftsNamesake
MissingPy210.0Haskell interface to Python (library, mit, unclassified)JohnGoerzen, MattBrown
MyPrimes50.0Generate all primes (benchmark, data, library, mit, program)afonsomatos
Neks90.0Simple networked key/value store (database, library, mit, program)wyager
NoTrace272.0Remove all the functions come from Debug.Trace after debugging (development, library, mit)CindyLinz
OTP50.0HMAC-Based and Time-Based One-Time Passwords (cryptography, library, mit)ArtemLeshchev
PasswordGenerator40.0Simple library for generating passwords (cryptography, library, mit)VictorDenisov
QLearn52.0A library for fast, easy-to-use Q-learning. (data, library, mit)dpandya
QuickCheck-GenT220.0A GenT monad transformer for QuickCheck library. (library, mit, testing)NikitaVolkov
QuickCheck-safe510.0Safe reimplementation of QuickCheck's core (library, mit, testing)BertramFelgenhauer
Random123130.0Haskell port of Random123 library (benchmark, library, mit, random)BogdanOpanchuk
Randometer100.0Randomness intuition trainer (mit, personalgrowth, program)So8res
Redmine250.0Library to access Redmine's REST services (library, mit, network, web)cstpierre
RichConditional50.0Tiny library to replace classic if/else (control, library, mit)alexvieth
RtMidi112.0 (library, mit, sound)kohlrabi
RxHaskell90.0Reactive Extensions for Haskell (frp, library, mit)JustinSpahrSummers
SCalendar (deprecated in favor of scalendar)241.25This is a library for handling calendars and resource availability based on the "top-nodes algorithm" and set operations. (deprecated, library, mit, time)sebasHack
SConfig (deprecated)102.0A simple config library (configuration, deprecated, library, mit)fgaz
SDL2-ttf (deprecated in favor of sdl2-ttf)50.0Binding to libSDL-ttf (deprecated, foreign-binding, library, mit)OmerAgacan
SFML210.0SFML bindings (game, library, mit)AlfredoDiNapoli, sulami, ppelleti
SFML-control80.0Higher level library on top of SFML (graphics, library, mit)AlfredoDiNapoli
SciFlow230.0Scientific workflow management system (control, library, mit)kaizhang
SimpleServer170.0A simple static file server, for when apache is overkill (library, mit, program, web)AnupamJain
Slides210.0Generate slides from Haskell code (graphics, library, mit)darwin226
SmtLib50.0Library for parsing SMTLIB2 (formal-methods, library, mit)roger62
Southpaw80.0Assorted utility modules (library, mit, utilities)SwiftsNamesake
Spock-digestive220.0Digestive functors support for Spock (library, mit, web)AlexanderThiemann
Spock-worker320.0Background workers for Spock (library, mit, web)AlexanderThiemann
Tournament40.0Tournament related algorithms (game, library, mit)EirikAlbrigtsen
TypeNat140.0Some Nat-indexed types for GHC (data, library, mit)alexvieth
UTFTConverter150.0Processing popular picture formats into .c or .raw format in RGB565 (graphics, library, mit, program, text)cirquit
Verba170.0A solver for the WordBrain game (game, mit, program)Jefffrey
WMSigner30.0WebMoney authentication module (cryptography, data, library, mit)triplepointfive
WaveFront150.0Parsers and utilities for the OBJ WaveFront 3D model format (graphics, library, mit)SwiftsNamesake
WebBits-multiplate20.0A Multiplate instance for JavaScript. (language, library, mit)BalazsEndresz
Win32-security50.0Haskell bindings to a security-related functions of the Windows API (library, mit, system)anton_dessiatov
X11-xfixes90.0A binding to the Xfixes X11 extension library (graphics, library, mit)ArenOlson
YACPong30.0Yet Another Pong Clone using SDL. (game, mit, program)KorcanHussein
Yocto (deprecated in favor of yocto)70.0A Minimal JSON Parser & Printer for Haskell (deprecated, library, mit, text)ajg
abeson60.0interconversion between aeson and bson. (data, library, mit)HirotomoMoriwaki
abt140.0Abstract binding trees for Haskell (language, library, mit)JonSterling
acid-state-dist60.0A replication backend for acid-state (benchmark, database, library, mit)maxvoit
acme-iot130.0IO monad transformer (control, library, mit)mniip
acme-memorandom110.0Memoized random number generation (acme, library, mit)ion
aeson-applicative50.0make To/From JSOn instances from an applicative description (data, library, mit)GregWeber
aeson-better-errors930.0Better error messages when decoding JSON values. (json, library, mit, text, web)hdgarrood
aeson-casing330.0Tools to change the formatting of field names in Aeson instances. (data, library, mit)andrewrademacher
aeson-injector810.0Injecting fields into aeson values (data, json, library, mit, web)NCrashed
aeson-json-ast150.0Integration layer for "json-ast" and "aeson" (library, mit, unclassified)NikitaVolkov
aeson-qq1230.0JSON quasiquoter for Haskell (json, library, mit)OscarFinnsson, SimonHengel, qoelet
aeson-schema340.0Haskell JSON schema validator and parser generator (data, library, mit)MateuszKowalczyk, TimBaumann
aeson-smart72.0Smart derivation of Aeson instances (library, mit, web)SamAnklesaria
aeson-t140.0Transform JSON (data, library, mit)begriffs
aeson-toolkit80.0A generalization of Aeson over Failure (json, library, mit, text, web)SimonHengel
aeson-value-parser320.0An API for parsing "aeson" JSON tree into Haskell types (data, json, library, mit, parsing)NikitaVolkov
aeson-yak130.0Handle JSON that may or may not be a list, or exist (data, library, mit)tejon
affinely-extended130.0 (data, library, mit)clinton
airship4150.0A Webmachine-inspired HTTP library (library, mit, web)reiddraper, patrick_thomson
alea380.0a diceware passphrase generator (mit, program, utility)rnhmjoj
algebraic-graphs362.5A library for algebraic graph construction and transformation (algebra, algorithms, benchmark, data-structures, graphs, library, mit)snowleopard
align-text60.0A simple unix filter to align text on specified substrings (mit, program, text)DanielChoi
amazon-products60.0Connector for Amazon Products API (library, mit, program, web)andrewrademacher
amqp-conduit140.0Conduit bindings for AMQP (see amqp package) (library, mit, network)toru_tomita
animalcase130.0Convert camelCase to snake_case and vice versa (library, mit, text)ibotty
ansigraph740.0Terminal-based graphing via ANSI and Unicode (graphics, library, mit)Cliff_Harvey
antigate530.0Interface for captcha recognition API (captcha, library, mit, network-apis, text-recognition)MikhailKuddah
api-opentheory-unicode100.0OpenTheory unicode character API (library, mit, text)JoeHurd
apiary1562.5Simple and type safe web framework that generate web API documentation. (library, mit, web)HirotomoMoriwaki, winterland
apiary-authenticate390.0authenticate support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-clientsession400.0clientsession support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-cookie520.0Cookie support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-eventsource300.0eventsource support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-helics190.0helics support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-http-client100.0A http client for Apiary. (library, mit, web)winterland
apiary-logger360.0fast-logger support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-memcached190.0memcached client for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-mongoDB180.0mongoDB support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-persistent452.0persistent support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-purescript360.0purescript compiler for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-session70.0session support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apiary-websockets490.0websockets support for apiary web framework. (library, mit, web)HirotomoMoriwaki, winterland
apotiki50.0a faster debian repository (library, mit, program, system)pyr
appc90.0app container types and tools (data, library, mit, program)wereHamster
ar-timestamp-wiper60.0Wipes time stamps from .a files (like ar -D) (application, library, mit, program)NiklasHambuechen, PatrickChilton
ariadne60.0Go-to-definition for Haskell (language, mit, program)RomanCheplyaka, manzyuk
arion132.0Watcher and runner for Hspec (mit, program, testing)karun012
arithmetic60.0Natural number arithmetic (library, mit, number-theory, program)JoeHurd
arithmoi1070.0Efficient basic number-theoretic functions. (algorithms, library, math, mit, number-theory)CarterSchonwald, DanielFischer, HerbertValerioRiedel, Bodigrim
arrow-improve30.0Improved arrows. (control, library, mit)alynn
ascetic80.0Generic markup builder. (library, mit, text)AndreiLapets
ascii-flatten30.0Flattens European non-ASCII characaters into ASCII (library, mit, program, text)DanielChoi
ascii-progress500.0A simple progress bar for the console. (library, mit, system)yamadapc
assertions70.0A simple testing framework. (library, mit, testing)vi
async-ajax90.0Crossbrowser async AJAX Bindings for GHCJS (library, mit, web)AlexanderThiemann
async-extra150.0Useful concurrent combinators (library, mit, web)AlexanderThiemann
async-pool190.0A modified version of async that supports worker groups and many-to-many task dependencies (library, mit, system)JohnWiegley
asynchronous-exceptions (deprecated)60.0Distinguish between synchronous and asynchronous exceptions (control, deprecated, library, mit)RomanCheplyaka
atom-msp43090.0Convenience functions for using Atom with the MSP430 microcontroller family. (embedded, library, mit)DanielBuckmaster
atomic-write312.0Atomically write to a file (library, mit, system)jsl, stackbuilders
atrans130.0A small collection of monad (transformer) instances. (library, mit, monads)apho
attoparsec-conduit (deprecated in favor of conduit-extra)970.0Consume attoparsec parsers via conduit. (deprecated) (conduit, data, deprecated, library, mit, parsing)MichaelSnoyman
attoparsec-data160.0Parsers for the standard Haskell data types (library, mit, parsing)NikitaVolkov
attoparsec-enumerator (deprecated)1170.0Pass input from an enumerator to an Attoparsec parser. (deprecated, enumerator, library, mit, parsing, text)JohnMillikin
attoparsec-parsec110.0An Attoparsec compatibility layer for Parsec (library, mit, parsing)SimonHengel
attoparsec-text-enumerator40.0(deprecated) (enumerator, library, mit, parsing, text)FelipeLessa
attoparsec-time280.0Attoparsec parsers of time (attoparsec, library, mit, parsers, time)NikitaVolkov
attoparsec-trans100.0Interleaved effects for attoparsec parsers (control, library, mit)srijs
authenticate2180.0Authentication methods for Haskell web applications. (library, mit, web)FelipeLessa, MichaelSnoyman
authinfo-hs80.0Password querying for .authinfo (library, mit, system)robgssp
auto262.0Denotative, locally stateful programming DSL & platform (control, library, mit)jle
auto-update27890.0Efficiently run periodic, on-demand actions (control, library, mit)KazuYamamoto, MichaelSnoyman
autoexporter8582.0Automatically re-export modules. (library, mit, program, utility)fozworth
avers-api210.0Types describing the core and extended Avers APIs (avers, library, mit)wereHamster
avers-api-docs100.0Swagger documentation for the Avers API (avers, library, mit)wereHamster
avers-server290.0Server implementation of the Avers API (avers, library, mit)wereHamster
avwx170.0Parse aviation weather reports (aviation, library, mit, program)hc
aws-dynamodb-conduit90.0Conduit-based interface for AWS DynamoDB (aws, library, mit)srijs
aws-general120.0Bindings for Amazon Web Services (AWS) General Reference (aws, cloud, distributed-computing, library, mit, network, web)larsk
aws-performance-tests80.0Performance Tests for the Haskell bindings for Amazon Web Services (AWS) (aws, cloud, distributed-computing, library, mit, network, program, web)larsk
aws-simple160.0Dead simple bindings to commonly used AWS Services (library, mit, web)AlexanderThiemann
aws-sns70.0Bindings for AWS SNS Version 2013-03-31 (aws, cloud, distributed-computing, library, mit, network, web)larsk
axiom200.0Web EDSL for running in browsers and server nodes using transient (library, mit, web)AlbertoCorona
axiomatic-classes50.0Specify axioms for type classes and quickCheck all available instances (library, mit, testing)aminb, SimonHudon
b9772.0A tool and library for building virtual machine images. (development, library, mit, program)SvenHeyll
bag (deprecated in favor of dlist)60.0A simple stable bag. (data-structures, deprecated, library, mit)DanielWaterworth
bank-holiday-usa140.0A library for determining US bank holidays (library, mit, time)tippenein
banwords (deprecated)50.0Generalized word blacklister (deprecated, heuristics, library, mit)fanjam
barcodes-code12840.0Generate Code 128 barcodes as PDFs (graphics, library, mit)dchristiansen style badge generator (graphics, library, mit)HirotomoMoriwaki
base-compat127502.0A compatibility layer for base (compatibility, library, mit)SimonHengel, ryanglscott
base-generics30.0This library provides some instances for extra GHC.Generic typeclass such as Int8, Word16 and some unboxed types as well. (generic, library, mit)songzh
base-orphans84592.0Backwards-compatible orphan instances for base (compatibility, library, mit)EdwardKmett, HerbertValerioRiedel, SimonHengel, ryanglscott
base-prelude13782.0The most complete prelude formed solely from the "base" package (library, mit, prelude)NikitaVolkov
base32string60.0Fast and safe representation of a Base-32 string (data, library, mit)solatis
base58string70.0Fast and safe representation of a Base-58 string (data, library, mit)solatis
base91130.0A Generic Base91 Encoder & Decoder (codec, library, mit, program)ajg
basex-client110.0A BaseX client for Haskell (database, library, mit)MatthijsSteen
basic-prelude1372.0An enhanced core prelude; a common foundation for alternate preludes. (control, library, mit, prelude)DanBurton, MichaelSnoyman
battlenet60.0API client for Battle.Net (library, mit, network)teozkr
battlenet-yesod40.0Yesod integration for the battlenet package (library, mit, network)teozkr
bdd90.0Behavior-Driven Development DSL (library, mit, testing)irekjozwiak
bdelta (deprecated in favor of bytestring-delta)80.0Simple, fast binary diff/patch (data, deprecated, library, mit)JoeyAdams
beam42.0A type-safe SQL mapper for Haskell that doesn't use Template Haskell (database, library, mit)TravisAthougies
bed-and-breakfast290.0Efficient Matrix operations in 100% Haskell. (library, linear-algebra, math, mit, numeric)JulianFleischer
bento82.0🍱 Manage stateful components. (library, mit, utility)fozworth
bet80.0Betfair API bindings. Bet on sports on betting exchanges. (library, mit, network)Adeon
bibdb110.0A database based bibliography manager for BibTeX (mit, program, text)cacay
binary-conduit950.0data serialization/deserialization conduit library (conduit, library, mit)AlexanderVershilov, MathieuBoespflug
binary-parser2150.0A highly-efficient but limited parser API specialised for bytestrings (binary, library, mit, parser)NikitaVolkov
bindings-libstemmer20.0Binding for libstemmer with low level binding. (ffi, library, mit)cosmo0920
bioinformatics-toolkit200.0A collection of bioinformatics tools (benchmark, bio, library, mit)kaizhang
bit-array90.0A bit array (aka bitset, bitmap, bit vector) API for numeric types (bit-vectors, data-structures, library, mit, pretty-printer)NikitaVolkov
bitcoin-api122.0Provides access to the RPC API of Bitcoin Core (finance, library, mit, network)solatis
bitcoin-api-extra60.0Higher level constructs on top of the bitcoin-api package (finance, library, mit, network)solatis
bitcoin-block80.0Utility functions for manipulating bitcoin blocks (finance, library, mit, network)solatis
bitcoin-script160.0Compilation, manipulation and decompilation of Bitcoin scripts (finance, library, mit, network)solatis
bitcoin-tx140.0Utility functions for manipulating bitcoin transactions (finance, library, mit, network)solatis
bitcoin-types90.0Provides consistent low-level types used commonly among Bitcoin implementations (finance, library, mit, network)solatis
bitset200.0A space-efficient set data structure. (benchmark, data-structures, library, mit)DenisBueno, FedorGogolev, SergeiLebedev
bitset-word81030.0Space efficient set of Word8 and some pre-canned sets useful for parsing HTTP (data, library, mit)nshimaza
blas-hs90.0Low-level Haskell bindings to Blas. (library, math, mit)Rufflewind
blatex142.0Blog in LaTeX (mit, program, web)2016rshah
blaze-bootstrap70.0Blaze helper functions for bootstrap pages (library, mit, web)AlexanderThiemann
blaze-json70.0tiny library for encoding json (json, library, mit, text)HirotomoMoriwaki
blazeMarker120.0... (library, mit, unclassified)faleidel
blazeT150.0A true monad (transformer) version of the blaze-markup and blaze-html libraries (data, library, mit, text, web)johannesgerer
blunt (deprecated)221.5Convert between pointfree and pointful expressions. (deprecated, library, mit, program, web)fozworth
bmp3682.0Read and write uncompressed BMP image files. (codec, library, mit)BenLippmeier
bno055-haskell90.0Library for communication with the Bosch BNO055 orientation sensor (library, mit, system)eamsden
boltzmann-samplers110.0Uniform random generators (data, generic, library, mit, random)lyxia
bond250.0Bond schema compiler and code generator (code-generation, compiler, language, library, mit, program)sapek, chwarr
bookkeeping190.0A module for bookkeeping by double entry. (business, library, mit)arowM
bookkeeping-jp170.0Helper functions for Japanese bookkeeping. (business, library, mit)arowM
boolean-normal-forms50.0Boolean normal form: NNF, DNF & CNF (data, library, mit)phadej
bootstrap-types160.0Bootstrap CSS Framework type-safe interface (library, mit, web)andrewthad
both90.0Like Maybe, but with a different Monoid instance. (data, library, mit)barrucadu
bound-gen90.0Unwrap Scope's with globally fresh values (compilers-interpreters, library, mit)jozefg
bower-json712.0Read bower.json from Haskell (library, mit, web)hdgarrood
box-tuples100.0A hack to use GHC.Prim primitives in GHCi (debug, ghc, library, mit)mniip
breve290.0a url shortener (mit, program, web)rnhmjoj
bson-lens60.0BSON lenses (development, library, mit)WilliamCasarin
buchhaltung110.0Automates most of your plain text accounting data entry in ledger format. (finance, library, mit, program)johannesgerer
buffer-builder-aeson130.0Serialize Aeson values with Data.BufferBuilder (benchmark, data, library, mit)chadaustin, afriesen
bug340.0Better alternatives to the "error" function (development, error-handling, library, mit)HerbertValerioRiedel, NikitaVolkov
buildable60.0Typeclass for builders of linear data structures (data, library, mit)IvanMiljenovic
bytestring-delta90.0Simple, fast binary diff/patch (data, library, mit)JoeyAdams
bytestring-read60.0fast ByteString to number converting library (benchmark, data, library, mit)HirotomoMoriwaki
bytestring-rematch20.0Rematch support for ByteString (control, library, mit)TomCrayford
bytestring-strict-builder2020.0An efficient strict bytestring builder (benchmark, builders, bytestring, library, mit, serialization, text)NikitaVolkov
bytestring-tree-builder1620.0A very efficient ByteString builder implementation based on the binary tree (benchmark, bytestring, library, mit)NikitaVolkov
c-dsl90.0A higher level DSL on top of language-c (language, library, mit)jozefg
c2hs-extra350.0Convenient marshallers for complicate C types. (development, foreign, library, mit)sighingnow
cabal-audit50.0Check how up-to-date your .cabal dependencies are. (distribution, mit, program)JoelTaylor
cabal-constraints30.0Repeatable builds for cabalized Haskell projects. (development, distribution, mit, program)BenArmston
cabal-graphdeps100.0Generate graphs of install-time Cabal dependencies (development, mit, program)JohnMillikin
cabal-info120.0Read information from cabal files (development, library, mit, program)barrucadu
cabal-mon70.0A monitor for cabal builds (development, mit, program)IavorDiatchki
cabal-test-quickcheck300.0QuickCheck for Cabal (library, mit, testing)TimothyJones
cabalg200.0alias for cabal install from given git repo (library, mit, program, unclassified)DmitryMalikov
cafeteria-prelude60.0Prelude subsets—take only what you want! (library, mit, prelude)scottflesichman, scottfleischman
cairo-canvas170.0Simpler drawing API for Cairo. (graphics, library, mit)apirogov
call-haskell-from-anything130.0Call Haskell functions from other languages via serialization and dynamic libraries (library, mit, network, program)NiklasHambuechen
call-stack84720.0Use GHC call-stacks in a backward compatible way (data, library, mit)SimonHengel
canteven-http290.0Utilities for HTTP programming. (library, mit, unclassified)taphu, potomak, glasserc
caramia220.0High-level OpenGL bindings (graphics, library, mit)Adeon
cased50.0Track string casing in its type (library, mit, text)WilliamCasarin
cases190.0A converter for spinal, snake and camel cases (benchmark, library, mit, text)NikitaVolkov
casing200.0Convert between various source code casing conventions (library, mit, text)TobiasDammers
cassava-megaparsec110.0Megaparsec parser of CSV files that plays nicely with Cassava (csv, library, mit, parsing, text, web)jsl, stackbuilders, mrkkrp
casui10.0Equation Manipulator (math, mit, program)EtienneLaurin
catnplus70.0Simple tool to display text files with line numbers and paging (command-line-tool, mit, program)rcook
cayley-dickson190.0Complex numbers, quaternions, octonions, sedenions, etc. (algebra, library, math, mit)lmj
celtchar90.0A tool to build a novel (library, mit, program, text)lethom
cereal-plus100.0An extended serialization library on top of "cereal" (library, mit, serialization)NikitaVolkov
cf122.0Exact real arithmetic using continued fractions (library, math, mit)mvr
chalk160.0Terminal string styling. (library, mit, system)cattheory
chatwork160.0The ChatWork API in Haskell (library, mit, program, web)matsubara0507
chell270.0A simple and intuitive library for automated testing. (library, mit, testing)JohnMillikin
chell-hunit70.0HUnit support for the Chell testing library (library, mit, testing)JohnMillikin
chell-quickcheck170.0QuickCheck support for the Chell testing library (library, mit, testing)JohnMillikin
chorale252.25A module containing basic functions that the prelude does not offer (library, mit, prelude)FranzBenjaminMocnik
chorale-geo62.0A module containing basic geo functions (library, mit, prelude)FranzBenjaminMocnik
chunked-data2890.0Typeclasses for dealing with various chunked data representations (data, library, mit)MichaelSnoyman
church-list (deprecated)80.0Removed; please see fmlist. (deprecated, library, mit, system)JohnWiegley
cio (deprecated)50.0A monad for concurrent IO on a thread pool (concurrency, deprecated, library, mit)NikitaVolkov
ciphersaber2130.0Implementation of CipherSaber2 RC4 cryptography. (data, library, mit, program)BartonMassey
circlehs52.0The CircleCI REST API for Haskell (api, library, mit, web)dshevchenko
cirru-parser60.0Cirru Parser in Haskell (library, mit, text)jiyinyiyong
cisco-spark-api380.0A Haskell bindings for Cisco Spark API (library, mit, program, web)nshimaza
cityhash130.0Bindings to CityHash (codec, library, mit)AustinSeipp
clafer260.0Compiles Clafer models to other formats: Alloy, JavaScript, JSON, HTML, Dot. (library, mit, model, program)mantkiew
claferIG290.0claferIG is an interactive tool that generates instances of Clafer models. (library, mit, model, program)mantkiew
claferwiki220.0A wiki-based IDE for literate modeling with Clafer (library, mit, wiki)mantkiew
clang-compilation-database340.0JSON Compilation Database Format encoding and decoding (language, library, mit)AlekseyKliger
clanki230.0Command-line spaced-repetition software (education, mit, program)marcusbuffett
clarifai60.0API Client for the Clarifai API. (library, mit, network)jcanero
classy-prelude1940.0A typeclass-based Prelude. (control, library, mit, prelude)GregWeber, MichaelSnoyman
classy-prelude-conduit1440.0classy-prelude together with conduit functions (control, library, mit, prelude)GregWeber, MichaelSnoyman
classy-prelude-yesod1050.0Provide a classy prelude including common Yesod functionality. (control, library, mit)GregWeber, MichaelSnoyman
cless60.0Colorized LESS (mit, program, text)HideyukiTanaka
cli-builder70.0Simple project template from stack (library, mit, tool)mizunashi_mana
clientsession5160.0Securely store session data in a client-side cookie. (library, mit, program, web)FelipeLessa, MichaelSnoyman
clif60.0A Clifford algebra number type for Haskell (algebra, benchmark, library, math, mit)maaleske
clingo110.0Haskell bindings to the Clingo ASP solver (asp, ffi, library, logic-programming, mit, symbolic-computation)tsahyt
clippard30.0A simple Haskell library for copying text to the clipboard in a cross-platform way. (library, mit, system)AnthonyGrimes
clippings90.0A parser/generator for Kindle-format clipping files (`My Clippings.txt`), (library, mit, program, text)vi
clone-all50.0Clone all github repositories from a given user (development, mit, program)NoonSilk
closure30.0Depth- and breadth-first set closures (library, math, mit)JosephAbrahamson
cloudi130.0Haskell CloudI API (foreign, library, mit)okeuday
clustering132.0High performance clustering algorithms (benchmark, library, math, mit)kaizhang
cmd-item40.0Library to compose and reuse command line fragments (library, mit, system)geraud
cmdtheline110.0Declarative command-line option parsing and documentation library. (console, library, mit)EliFrey
coinbase-exchange740.0Connector library for the coinbase exchange. (library, mit, program, web)andrewrademacher
collection-json420.0Collection+JSON—Hypermedia Type Tools (data, library, mit)alunduil
color-counter90.0Count colors in images (graphics, library, mit, program)BrianBush
colorful-monoids180.0Styled console text output using ANSI escape sequences. (library, mit, monad, text, user-interfaces)minad
colour117670.0A model for human colour/color perception (data, graphics, library, mit)RussellOConnor
commutative110.0Commutative binary operations. (data, library, math, mit)athanclark
competition30.0Helpers and runners for code competitions (code-competitions, library, mit)yanatan16
compose-ltr130.0More intuitive, left-to-right function composition. (data, library, mit)Wizek
compound-types1010.0Sum and Product types and such (data, library, mit, type-system, types)NikitaVolkov
concurrency1190.0Typeclasses, functions, and data types for concurrency and STM. (concurrency, library, mit)barrucadu
concurrent-rpc100.0An abstraction for inter-thread RPC based on MVars (concurrency, library, mit)LarsPetersen
concurrent-state230.0MTL-like library using TVars (control, library, mit)JoelTaylor
conduit93742.5Streaming data processing library. (conduit, data, library, mit)MichaelSnoyman
conduit-algorithms790.0Conduit-based algorithms (conduit, library, mit)luispedro
conduit-combinators3380.0Commonly used conduit functions, for both chunked and unchunked data (conduit, data, library, mit)MichaelSloan, MichaelSnoyman
conduit-extra46650.0Batteries included conduit: adapters for common libraries. (conduit, data, library, mit)MichaelSnoyman
conduit-find80.0A file-finding conduit that allows user control over traversals. (library, mit, program, system)ErikDeCastroLopo
conffmt30.0A .conf file formatter (data, mit, program)yamadapc
config-value492.25Simple, layout-based value language similar to YAML or JSON (language, library, mit)EricMertens
config-value-getopt120.0Interface between config-value and System.GetOpt (configuration, library, mit)EricMertens
configuration-tools592.0Tools for specifying and parsing configurations (configuration, console, library, mit)larsk
congruence-relation40.0Decidable congruence relations for Haskell: up to you whether this is a joke (data, library, mit)JonSterling
conlogger40.0A logger for a concurrent program. (concurrency, library, mit, program)tattsun
consistent80.0Eventually consistent STM transactions. (library, mit, system)JohnWiegley
console-style (deprecated in favor of colorful-monoids)150.0Styled console text output using ANSI escape sequences. (deprecated, library, mit, monad, text, user-interfaces)minad
constrained-dynamic80.0Dynamic typing with retained constraints (data, library, mit)jh3141
constrained-monads170.0Typeclasses and instances for monads with constraints. (benchmark, control, library, mit)oisdk
constraint-manip430.0Some conviencience type functions for manipulating constraints. (control, library, mit)clinton
context-stack40.0An abstraction of a stack and stack-based monadic context. (data, library, mit)thinkpad20
continuum100.0 (library, mit, unclassified)ifesdjeen
continuum-client30.0 (library, mit, unclassified)ifesdjeen
contravariant-extras2050.0Extras for the "contravariant" package (control, library, mit)NikitaVolkov
control-invariants40.0Invariants and contract monitoring (control, library, mit)aminb, SimonHudon
control-monad-exception450.0Explicitly typed, checked exceptions with stack traces (control, failure, library, mit, monads)PepeIborra
conversion170.0Universal converter between values of different types (control, conversion, data, library, mit)NikitaVolkov
conversion-bytestring120.0"Conversion" instances for the "bytestring" library (control, conversion, data, library, mit)NikitaVolkov
conversion-case-insensitive60.0"Conversion" instances for the "case-insensitive" library (control, conversion, data, library, mit)NikitaVolkov
conversion-text110.0"Conversion" instances for the "text" library (control, conversion, data, library, mit)NikitaVolkov
cookie57700.0HTTP cookie parsing and rendering (library, mit, web, yesod)MichaelSnoyman
core-compiler160.0compile your own mini functional language with Core (compiler, language, library, mit, program)aneksteind
couch-simple60.0A modern, lightweight, complete client for CouchDB (database, library, mit)mdorman
countable-inflections130.0Countable Text Inflections (library, mit, text)tippenein
counter142.0An object frequency counter. (data, library, mit)wei2912
courier372.0A message-passing library for simplifying network applications (distributed-computing, library, message-oriented, mit, network, program)PhilHargett
coverage70.0Exhaustivity Checking Library (control, library, mit)NicolasDelPiano
cprng-aes-effect40.0Run random effect using cprng-aes, a crypto pseudo number generator. (crypto, effect, library, mit)ibotty
cpuinfo140.0Haskell Library for Checking CPU Information (library, mit, system)TravisWhitaker
cqrs210.0Command-Query Responsibility Segregation (data, library, mit)BardurArantsson
cqrs-core30.0Command-Query Responsibility Segregation (data, library, mit)BardurArantsson
cqrs-example110.0Example for cqrs package (mit, program, web)BardurArantsson
cqrs-memory20.0Memory backend for the cqrs package. (data, library, mit)BardurArantsson
cqrs-postgresql40.0PostgreSQL backend for the cqrs package. (data, library, mit)BardurArantsson
cqrs-sqlite360.0SQLite3 backend for the cqrs package. (data, library, mit)BardurArantsson
cqrs-test20.0Command-Query Responsibility Segregation Test Support (data, library, mit)BardurArantsson
cqrs-testkit30.0Command-Query Responsibility Segregation Test Support (data, library, mit)BardurArantsson
cqrs-types80.0Command-Query Responsibility Segregation. Modules for the basic types. (data, library, mit)BardurArantsson
craftwerk40.02D graphics library with integrated TikZ output. (graphics, library, mit)MalteHarder
craftwerk-cairo20.0Cairo backend for Craftwerk. (graphics, library, mit)MalteHarder
craftwerk-gtk20.0Gtk UI for Craftwerk. (graphics, library, mit)MalteHarder
craze110.0HTTP Racing Library (library, mit, program, web)etcinit
crc70.0Implements various Cyclic Redundancy Checks (CRC) (benchmark, library, mit, web)MichaelXavier
criterion-plus70.0Enhancement of the "criterion" benchmarking library (benchmarking, library, mit)NikitaVolkov
criu-rpc50.0CRIU RPC client. (criu, library, mit)wayofthepie
criu-rpc-types60.0Criu RPC protocol buffer types. (criu, library, mit)wayofthepie
cron370.0Cron datatypes and Attoparsec parser (benchmark, library, mit, parsing, system, text)MichaelXavier
cron-compat (deprecated in favor of cron)40.0Cron datatypes and Attoparsec parser (deprecated, library, mit, parsing, system, text)andrewthad
crypto-pubkey-openssh1250.0OpenSSH keys decoder/encoder (cryptography, library, mit, parsing)FedorGogolev
crypto-random-effect140.0A random effect using crypto-random (crypto, effect, library, mit)ibotty
crypto-simple70.0A simple high level encryption interface based on cryptonite (cryptography, library, mit)RistoStevcev
cryptocompare1320.0Haskell wrapper for the cryptocompare API (library, mit, web)aviaviavi
css-syntax180.0This package implments a parser for the CSS syntax (data, library, mit)wereHamster
css-text9510.0CSS parser and renderer. (library, mit, web, yesod)GregWeber, MichaelSnoyman
csv1742.0CSV loader and dumper (library, mit, text)JaapWeel
csv-table100.0Scripts for manipulating tables stored as CSV files (data, library, mit)ranjitjhala
ctrie460.0Non-blocking concurrent map (concurrency, data-structures, library, mit)MichaelSchroeder
cubical100.0Implementation of Univalence in Cubical Sets (dependent-types, mit, program)AndersMortberg
cuboid160.03D Yampa/GLUT Puzzle Game (game, mit, program)PedroMartins
currency-codes390.0ISO-4217 Currency Codes (data, library, mit)KtorZ
current-locale100.0Get the current system locale in System.Locale format (library, mit, system)AlexeyKotlyarov
curves80.0Library for drawing curve based images. (graphics, library, mit)UlfNorell
d3d11binding82.0A raw binding for the directX 11 (graphics, library, mit, program)jwvg0425
damnpacket240.0Parsing dAmn messages (library, mit, network)JudeTaylor
danibot100.0Basic Slack bot framework. (library, mit, network, program)DanielDiazCarrete
data-basic130.0A database library with a focus on ease of use, type safety and useful error messages (database, library, mit)darwin226
data-binary-ieee75411160.0Parser/Serialiser for IEEE-754 floating-point values (data, library, mit)JohnMillikin
data-carousel60.0A rotating sequence data structure (data, library, mit)JonSterling
data-concurrent-queue60.0A Library for directional queues (concurrency, library, mit)georgerogers42
data-embed30.0Embed files and other binary blobs inside executables without Template Haskell. (data, library, mit, program)AntonEkblad
data-flagset30.0An efficient data type for sets of flags (data, library, mit)TobiasBrandt
data-lens-light480.0Simple lenses, minimum dependencies (data, lenses, library, mit)RomanCheplyaka
data-map-multikey70.0Data.Map with multiple, unique keys (data, library, mit)JasonHickner
data-r-tree120.0R-Tree is a spatial data structure similar to Quadtrees or B-Trees. (data-structures, library, mit)SebastianPhilipp
data-size140.0Profiling of data structures (library, mit, testing)UweSchmidt
data-stringmap130.0An efficient implementation of maps from strings to arbitrary values (data-structures, library, mit)UweSchmidt, SebastianPhilipp
data-structure-inferrer60.0Program that infers the fastest data structure available for your program (development, mit, program)AleksanderBalicki
data-tensor60.0Tensor and Group typeclasses (data, library, mit)TobiasDammers
datadog50.0Datadog client for Haskell. Currently only StatsD supported, other support forthcoming. (library, mit, network)IanDuncan
datasets360.0Classical data sets for statistics and machine learning (data, data-mining, library, machine-learning, mit, statistics)glutamate
dataurl60.0Handle data-urls (library, mit, web)AlexanderThiemann
date-conversions120.0Date conversions (data, date, library, mit)joshuaclayton
dawdle60.0Generates DDL suggestions based on a CSV file (database, library, mit, program)arnon
dbcleaner220.0Clean database tables automatically around hspec tests (database, library, mit)jsl, sestrella, goetzc
ddc-base (deprecated in favor of ddc-core)130.0Disciplined Disciple Compiler common utilities. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-build (deprecated)120.0Disciplined Disciple Compiler build framework. (compilers-interpreters, deprecated, library, mit)BenLippmeier, amosrobinson
ddc-code (deprecated)230.0Disciplined Disciple Compiler base libraries. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core (deprecated)160.0Disciplined Disciple Compiler core language and type checker. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-babel (deprecated)40.0Disciplined Disciple Compiler PHP code generator. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-eval (deprecated)100.0Disciplined Disciple Compiler semantic evaluator for the core language. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-flow (deprecated)70.0Disciplined Disciple Compiler data flow compiler. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-llvm (deprecated)80.0Disciplined Disciple Compiler LLVM code generator. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-salt (deprecated)100.0Disciplined Disciple Compiler C code generator. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-simpl (deprecated)170.0Disciplined Disciple Compiler code transformations. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-core-tetra (deprecated)90.0Disciplined Disciple Compiler intermediate language. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-driver (deprecated)110.0Disciplined Disciple Compiler top-level driver. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-interface (deprecated)30.0Disciplined Disciple Compiler user interface support. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-source-tetra (deprecated)70.0Disciplined Disciple Compiler source language. (compilers-interpreters, deprecated, library, mit)BenLippmeier
ddc-tools (deprecated)130.0Disciplined Disciple Compiler command line tools. (compilers-interpreters, deprecated, mit, program)BenLippmeier
ddc-war (deprecated)50.0Disciplined Disciple Compiler test driver and buildbot. (compilers-interpreters, deprecated, mit, program)BenLippmeier
ddci-core (deprecated)60.0Disciple Core language interactive interpreter. (compilers-interpreters, deprecated, mit, program)BenLippmeier
dead-simple-json70.0Dead simple JSON parser, with some Template Haskell sugar. (json, library, mit)JulianFleischer
debug-time100.0Debug.Trace equivalent for timing computations (debug, library, mit)darwin226
deburr172.0Convert Unicode characters with burrs to their ASCII counterparts. (library, mit, text)princess
declarative210.0DIY Markov Chains. (library, math, mit)JaredTobin
decode-utf860.0Decode a UTF-8 byte stream on standard input (mit, program, text)JoeHurd
deeplearning-hs80.0Deep Learning in Haskell (library, math, mit, program)ajtulloch
dejafu1670.0Systematic testing for Haskell concurrency. (concurrency, library, mit)barrucadu
delude130.0Generalized the Prelude more functionally. (distribution, library, mit)sgschlesinger
depends (deprecated in favor of cabal-install)60.0A simple configuration management tool for Haskell (deprecated, distribution, mit, program)SimonHengel
deque402.0Double-ended queue (library, mit, unclassified)NikitaVolkov
derive-monoid140.0derive Semigroup/Monoid/IsList (derive-monoid, library, mit, program)sboo
derive-storable1000.0Derive Storable instances with GHC.Generics. (foreign, library, mit)mkloczko
derive-storable-plugin90.0GHC core plugin supporting the derive-storable package. (foreign, library, mit)mkloczko
derulo1220.0Parse and render JSON simply. (json, library, mit, program)fozworth
deterministic-game-engine112.0Simple deterministic game engine (game-engine, library, mit)tgolson
deunicode30.0Get rid of unicode (utf-8) symbols in Haskell sources (codec, mit, program)BenFranksen
devil90.0A small tool to make it easier to update program managed by Angel. (mit, program, system)luanzhu
dfrac90.0A package for precise decimal arithmatic using rationals. (library, math, mit)georgerogers42
dgim100.0Implementation of DGIM algorithm (algorithms, data, library, mit)musically_ut
diagrams-rubiks-cube180.0Library for drawing the Rubik's Cube. (graphics, library, mit)TimBaumann
dib140.0A simple, forward build system. (development, library, mit, program)blajzer
digestive-bootstrap70.0Speed up form designing using digestive functors and bootstrap (library, mit, web)AlexanderThiemann
digestive-foundation-lucid40.0Speed up form designing using digestive functors and foundation (library, mit, web)athanclark
digitalocean-kzs60.0digitalocean api for haskell (library, mit, web)KazumaSATO
dingo-core120.0Dingo is a Rich Internet Application platform based on the Warp web server. (library, mit, web)BardurArantsson
dingo-example40.0Dingo Example (mit, program, web)BardurArantsson
dingo-widgets80.0Dingo Widgets (library, mit, web)BardurArantsson
discogs-haskell30.0Client for Discogs REST API (library, mit, web)accraze
discord-gateway200.0An API wrapper for Discord in Haskell (library, mit, network)jkoike
discord-hs200.0An API wrapper for Discord in Haskell (library, mit, network)jkoike
discord-rest150.0An API wrapper for Discord in Haskell (library, mit, network)jkoike
discord-types180.0Type information for discord-hs (library, mit, network)jkoike
discount120.0Haskell bindings to the discount Markdown library. (library, mit, text)PatrickHurst
disjoint-set-stateful130.0Monadic disjoint set (data, library, mit)clinton
diskhash500.0Disk-based hash table (data, library, mit)luispedro
distance120.0Useful distance datatype and functions (library, mit, web)AlexanderThiemann
distance-of-time80.0Generate readable distances between times. (library, mit, time)joshuaclayton
djembe50.0Hit drums with haskell (library, mit, sound)ReedRosenbluth
dockercook150.0A build tool for multiple docker image layers (development, library, mit, program)AlexanderThiemann
dockerfile70.0A simple DSL for describing and generating Dockerfile containers in Haskell. (data, library, mit)ChristopherReichert
docopt302.25A command-line interface parser that will make you smile (console, library, mit)ryanartecona
doctest8222.75Test interactive Haskell examples (library, mit, program, testing)KazuYamamoto, SimonHengel, SoenkeHahn, jkarni
doctest-prop (deprecated in favor of doctest)91.75Allow QuickCheck-style property testing within doctest. (deprecated, library, mit, testing)TakayukiMuranushi
docvim200.0Documentation generator for Vim plug-ins (development, library, mit, program)wincent
doi100.0Automatic Bibtex and fulltext of scientific articles (database, library, mit, program)johannesgerer
dom-parser580.0Simple monadic DOM parser (library, mit, xml)AlekseyUymanov, typeable
dotenv1860.0Loads environment variables from dotenv files (configuration, library, mit, program)jsl, jpvillaisaza, stackbuilders, sestrella, mrkkrp, juanpaucar, camm, goetzc
doublify-toolkit120.0Doublify API toolkit for Haskell (api, library, mit)fdhadzh
dozens40.0dozens api library (library, mit, web)HirotomoMoriwaki
dpor (deprecated in favor of dejafu)100.0A generic implementation of dynamic partial-order reduction (DPOR) for testing arbitrary models of concurrency. (deprecated, library, mit, testing)barrucadu
dresdner-verkehrsbetriebe90.0Library and program for querying DVB (Dresdner Verkehrsbetriebe AG) (library, mit, network, program)meoblast001
drifter210.0Simple schema management for arbitrary databases. (database, library, mit)MichaelXavier, andrewrademacher
drifter-postgresql110.0PostgreSQL support for the drifter schema migration tool (database, library, mit)MichaelXavier
dropbox-sdk70.0A library to access the Dropbox HTTP API. (library, mit, network-apis)KannanGoundan
ds-kanren80.0A subset of the miniKanren language (language, library, mit)jozefg
dsc200.0Helper functions for setting up Double Submit Cookie defense for forms (library, mit, web)qoelet
dson-parsec30.0DSON parser. (data, library, mit)alvare
dtw110.0(Fast) Dynamic Time Warping (algorithms, data-mining, library, machine-learning, mit)fho
dump192.0Dumps the names and values of expressions to ease debugging. (development, library, mit, quasiquotes)Wizek
duplo (deprecated)160.0Frontend development build tool (deprecated, library, mit, program, web)kenhkan
dywapitchtrack40.0Bindings to the dywapitchtrack pitch tracking library (library, mit, sound)lortabac
earclipper82.0Ear Clipping Triangulation (graphics, library, mit, program)zaidan
easy-api40.0Utility code for building HTTP API bindings more quickly. (library, mit, web)IanDuncan
easyjson30.0Haskell JSON library with an emphasis on simplicity, minimal dependencies, and ease of use. (library, mit, text)thinkpad20
easyplot320.0A tiny plotting library, utilizes gnuplot for plotting. (graphics, library, math, mit, plotting)JulianFleischer
ebnf-bff50.0Parser combinators & EBNF, BFFs! (ebnf, library, metalanguage, mit, parsing, program, text)Lokidottir
ed2551932070.0Ed25519 cryptographic signatures (benchmark, cryptography, mit)AustinSeipp
edis100.0Statically typechecked client for Redis (database, library, mit)TingYenLai
effect-handlers220.0A library for writing extensible algebraic effects and handlers. Similar to extensible-effects but with deep handlers. (benchmark, control, library, mit)edofic, blambda
egison1990.0Programming language with non-linear pattern-matching against non-free data (benchmark, compilers-interpreters, library, mit, program)SatoshiEgi
egison-quote60.0A quasi quotes for using Egison expression in Haskell code (language, library, mit)TakuyaKuwahara
egison-tutorial380.0A tutorial program for the Egison programming language (compilers-interpreters, mit, program)SatoshiEgi
ehs60.0Embedded haskell template using quasiquotes. (language, library, mit, template, text)minpou
ekg-prometheus-adapter150.0Easily expose your EKG metrics to Prometheus (library, mit, web)AlfredoDiNapoli
elm-export-persistent140.0elm-export persistent entities (data, database, library, mit, web)WilliamCasarin
elm-init382.0Set up basic structure for an elm project (development, mit, program)justus
elsa110.0A tiny language for understanding the lambda-calculus (language, library, mit, program)ranjitjhala
enclosed-exceptions4742.0Catching all exceptions from within an enclosed computation (control, library, mit)MichaelSnoyman, jcristovao
encode-string120.0Safe string conversion and encoding (data, library, mit, string, text)minad
engine-io-growler40.0 (library, mit, web)IanDuncan
entangle90.0An application (and library) to convert quipper circuits into Qpmc models. (library, mit, program, unclassified)miniBill
enumerate190.0enumerate all the values in a finite type (automatically) (data, library, mit, program)sboo
enumerator (deprecated)1480.0Reliable, high-performance processing with left-fold enumerators (data, deprecated, enumerator, library, mit)JohnMillikin
enumerator-fd70.0Enumerator instances for monads-fd classes (enumerator, library, mit)JohnMillikin
enumerator-tf70.0Enumerator instances for monads-tf classes (enumerator, library, mit)JohnMillikin
env-parser60.0Pull configuration information from the ENV (library, mit, system)JosephAbrahamson
error-list50.0A useful type for collecting error messages. (control, library, mit)thinkpad20
error-loc50.0An error replacement with call-site metadata. (library, mit, utils)JoelTaylor
error-util140.0Set of utils and operators for error handling (error-handling, library, mit)danilo2, PiotrMlodawski
errorcall-eq-instance (deprecated in favor of base-orphans)190.0An orphan Eq instance for ErrorCall (control, deprecated, library, mit)SimonHengel
ess30.0The type-level S combinator in Haskell. (data, library, mit)MichaelOChurch
etc200.0Declarative configuration spec for Haskell projects (configuration, library, mit, system)RomanGonzalez
eths-rlp120.0Ethereum Recursive Length Prefix Encoding (contracts, data, ethereum, finance, library, mit, network)LogvinovLeon
euler190.0Mathematics utilities for Haskell (benchmark, library, math, mit)decomputed
eventful-core250.0Core module for eventful (database, eventsourcing, library, mit)jdreaver
eventful-dynamodb140.0Library for eventful DynamoDB event stores (aws, database, eventsourcing, library, mit)jdreaver
eventful-memory230.0In-memory implementations for eventful (database, eventsourcing, library, mit)jdreaver
eventful-postgresql150.0Postgres implementations for eventful (database, eventsourcing, library, mit, postgresql)jdreaver
eventful-sql-common190.0Common library for SQL event stores (database, eventsourcing, library, mit)jdreaver
eventful-sqlite240.0SQLite implementations for eventful (database, eventsourcing, library, mit, sqlite)jdreaver
eventful-test-helpers200.0Common module used for eventful tests (database, eventsourcing, library, mit)jdreaver
eventsourced140.0Server-Sent Events the UNIX way (library, mit, network, program)richardTowers
exact-pi770.0Exact rational multiples of pi (and integer powers of pi) (data, library, mit)dmcclean
exact-real252.0Exact real arithmetic (benchmark, library, math, mit)jophish
execs30.0Tool to run stack exec prj-exe more easy (library, mit, program, utils)wapxmas
executable-hash160.0Provides the SHA1 hash of the program executable (library, mit, program, system)MichaelSloan, MichaelSnoyman
executor220.0Shell helpers (distribution, library, mit)gianlucaguarini
existential40.0Existential types with lens-like accessors. (data, library, mit)aminb, SimonHudon
expat-enumerator (deprecated)60.0Enumerator-based API for Expat (deprecated, enumerator, library, mit, parsing, text, xml)JohnMillikin
explain80.0Show how expressions are parsed (language, mit, program)JoelTaylor
extensible-effects522.25An Alternative to Monad Transformers (control, effect, library, mit)BenFoppa, RomanCheplyaka, shergill
extensible-sp122.0light-weight, extensible sums and products over types and kinds (data, library, mit)jadaska
extract-dependencies110.0Given a hackage package outputs the list of its dependencies. (development, library, mit, program)yamadapc
ez-couch (deprecated)220.0A high level static library for working with CouchDB (couchdb, database, deprecated, library, mit)NikitaVolkov
faker50.0Pure Haskell library for generating fake data (library, mit, testing)gazay
fast-nats120.0Natural Numbers with no overhead (data, library, mit)mckeankylej
fastbayes50.0Bayesian modeling algorithms accelerated for particular model structures (library, mit, statistics)ChadScherrer
fastedit30.0find nearest neighbours by edit-distance (library, mit, text)MarkWotton
fay-text200.0Fay Text type represented as JavaScript strings (data, fay, library, mit, text)AdamBergmark
fcd20.0A faster way to navigate directories using the command line. (library, mit, program, utility)Neki
feature-flags90.0A simple library for dynamically enabling and disabling functionality. (control, library, mit)IanDuncan
feature-flipper220.0A minimally obtrusive feature flag library (library, mit, web)toddmohney
feature-flipper-postgres110.0A minimally obtrusive feature flag library (library, mit, web)toddmohney
feed-crawl70.0Utility for fetching feeds with redirect info and HTML link detection (library, mit, text)DanielChoi
fen2s50.0Converting a chess position from FEN notation to text (game, library, mit, program)JoeHurd
ficketed70.0update statically hosted file in a push stule through socketed (mit, program, web)sencenan
file-command-qq100.0Quasiquoter for system commands involving filepaths (library, mit, system)JonathanFischoff
file-modules200.0Takes a Haskell source-code file and outputs its modules. (development, library, mit, program)yamadapc
filesystem-conduit (deprecated in favor of conduit-combinators)220.0Use system-filepath data types with conduits. (deprecated) (conduit, data, deprecated, library, mit)MichaelSnoyman
filesystem-enumerator (deprecated)70.0Enumerator-based API for manipulating the filesystem. (deprecated, enumerator, library, mit, system)JohnMillikin
filter-logger220.0Filterable request logging wai middleware. Change how data is logged and when. (library, mit, program, web)jmc41493
final-pretty-printer290.0Extensible pretty printing with semantic annotations and proportional fonts (library, mit, text)DavidDarais, dchristiansen
find-conduit (deprecated in favor of pipes-files, conduit-find)140.0A file-finding conduit that allows user control over traversals. (deprecated, library, mit, program, system)JohnWiegley
find-source-files120.0Initial project template from stack (library, mit, test)oisdk
fixed-point (deprecated)120.0Binary fixed-point arithmetic (data, deprecated, game, library, math, mit, numerical)JakeMcArthur
fixed-point-vector (deprecated)30.0Unbox instances for the fixed-point package (data, deprecated, game, library, math, mit, numerical)JakeMcArthur
fixed-point-vector-space (deprecated)30.0vector-space instances for the fixed-point package (data, deprecated, game, library, math, mit, numerical)JakeMcArthur
fixedwidth-hs110.0Quick parsing of fixed-width data formats. (library, mit, program, text)MichaelOChurch
flamethrower150.0A template engine for HTML (html, library, mit, text, web)charmander
flat-mcmc220.0Painless general-purpose sampling. (library, math, mit)JaredTobin
flexible-time70.0simple extension of Data.UnixTime. (data, library, mit)tattsun
flow372.5Write more understandable Haskell. (combinators, functions, library, mit, utility)fozworth
flow-er80.0More directional operators (combinators, functions, library, mit, utility)expede
flowdock70.0Flowdock client library for Haskell (library, mit, web)IanDuncan
flowdock-api20.0API integration with Flowdock. (library, mit, network, program)gabemc
fltkhs1310.0FLTK bindings (graphics, gui, library, mit, program, ui, user-interfaces)deech
fltkhs-demos (deprecated)50.0FLTKHS demos. Please scroll to the bottom for more information. (deprecated, graphics, mit, program, ui)deech
fltkhs-fluid-demos (deprecated)40.0Fltkhs Fluid Demos (deprecated, graphics, mit, program, ui)deech
fltkhs-fluid-examples (deprecated in favor of fltkhs-fluid-demos)50.0Fltkhs Fluid Examples (deprecated, graphics, mit, program, ui)deech
fltkhs-hello-world30.0Fltkhs template project (graphics, mit, program, ui)deech
fluidsynth50.0Haskell bindings to FluidSynth (library, mit, sound)CorbinSimpson
focus9320.0A general abstraction for manipulating elements of container data structures (containers, data, library, mit)NikitaVolkov
foldl-incremental92.0incremental folds (benchmark, control, library, mit, statistics)tonyday
folds-common80.0A playground of common folds for folds (data, library, mit)jozefg
foma30.0Simple Haskell bindings for Foma. (language, library, mit)joom
formal30.0A statically typed, functional programming language (compiler, mit, program)AndrewStein
format20.0Rendering from and scanning to format strings (library, mit, text)ScottLawrence
format-numbers110.0Various number formatting functions (library, mit, web)AlexanderThiemann
format-status60.0A utility for writing the date to dzen2. (mit, program, unclassified)georgerogers42
forml60.0A statically typed, functional programming language (compiler, mit, program)AndrewStein
formura20.0Formura is a simple language to describe stencil computation. (language, library, mit, program)TakayukiMuranushi
freddy120.0RabbitMQ Messaging API supporting request-response (library, mit, network)indrek
free-concurrent40.0Free monads suitable for concurrent computation (concurrency, library, mit)srijs
free-http110.0An HTTP Client based on Free Monads. (library, mit, network)aaronlevin
fresh70.0Introduce fresh variables into Haskell source code (language, library, mit)DavidLazar
frontmatter140.0Parses frontmatter as used in Jekyll markdown files. (data, library, mit)yamadapc
fsh-csv70.0csv parser for fsh (distribution, library, mit)iostreamer
fsnotify-conduit60.0Get filesystem notifications as a stream of events (conduit, data, library, mit)MichaelSnoyman
fsutils50.0File system utilities for Haskell that are missing from built in libraries. (library, mit, system)AnthonyGrimes
funcons-tools20.0A modular interpreter for executing funcons (compilers-interpreters, library, mit, program)ltvanbinsbergen
functor-infix192.0Infix operators for mapping over compositions of functors. Lots of them. (data, library, mit)vi
funnyprint140.0funnyPrint function to colorize GHCi output. (benchmark, library, mit, text)netsu
fuzzy80.0Filters a list based on a fuzzy string search. (library, mit, text)cattheory
fuzzy-timings30.0Translates high-level definitions of "fuzzily" scheduled objects (e.g. play this commercial 10 times per hour between 9:00-13:00) to a list of accurately scheduled objects using glpk-hs. (library, mit, scheduling)TeroLaitinen
fx110.0Horizontally composable effects (library, mit, unclassified)NikitaVolkov
g-npm90.0Generate Gentoo ebuilds from NodeJS/npm packages. (mit, program, tools)JesusRivero
g4ip50.0A theorem prover for propositional logic that uses G4ip (library, logic, mit)cacay
g4ip-prover160.0Theorem prover for intuitionistic propositional logic using G4ip (logic, mit, program)klntsky
game-of-life170.0Conway's Game of Life (mit, program, unclassified)marcusbuffett
gdax1100.0API Wrapping for Coinbase's GDAX exchange. (library, mit, program, web)andrewrademacher
gelatin90.0An experimental real time renderer. (graphics, library, mit, program)SchellScivally
genders70.0Bindings to libgenders. (database, library, mit)MathieuBoespflug
general-games230.0Library supporting simulation of a number of games (game, library, mit, poker)cgorski
generic-arbitrary8340.0Generic implementation for QuickCheck's Arbitrary (generic, library, mit)typeable
generic-church102.0Automatically convert Generic instances to and from church representations (generics, library, mit)jozefg
generic-enum130.0An Enum class that fixes some deficiences with Prelude's Enum (library, mit, unclassified)clinton
generic-lucid-scaffold (deprecated in favor of webpage)60.0General-purpose web page scaffold for Lucid. (deprecated, library, mit, unclassified)athanclark
generic-pretty40.0Pretty printing for Generic value (library, mit, text)HideyukiTanaka
generic-random1462.25Generic random generators (generics, library, mit, testing)lyxia
genvalidity620.0Testing utilities for the validity library (library, mit, testing)Norfair
genvalidity-aeson430.0GenValidity support for aeson (library, mit, testing)Norfair
genvalidity-bytestring420.0GenValidity support for ByteString (library, mit, testing)Norfair
genvalidity-containers490.0GenValidity support for containers (library, mit, testing)Norfair
genvalidity-hspec590.0Standard spec's for GenValidity instances (library, mit, testing)Norfair
genvalidity-hspec-aeson500.0Standard spec's for aeson-related instances (library, mit, testing)Norfair
genvalidity-hspec-binary410.0Standard spec's for binary-related Instances (library, mit, testing)Norfair
genvalidity-hspec-cereal450.0Standard spec's for cereal-related instances (library, mit, testing)Norfair
genvalidity-hspec-hashable350.0Standard spec's for Hashable instances (library, mit, testing)Norfair
genvalidity-path460.0GenValidity support for Path (library, mit, testing)Norfair
genvalidity-property530.0Standard properties for functions on `Validity` types (library, mit, testing)Norfair
genvalidity-scientific460.0GenValidity support for Scientific (library, mit, testing)Norfair
genvalidity-text500.0GenValidity support for Text (library, mit, testing)Norfair
genvalidity-time440.0GenValidity support for time (library, mit, testing)Norfair
genvalidity-unordered-containers460.0GenValidity support for unordered-containers (library, mit, testing)Norfair
genvalidity-uuid420.0GenValidity support for UUID (library, mit, testing)Norfair
genvalidity-vector490.0GenValidity support for vector (library, mit, testing)Norfair
geo-resolver20.0Performs geo location lookups and parses the results (library, mit, web)JanGreve
getflag70.0Command-line parser. (library, mit, parsing)TroelsHenriksen
ghc-options30.0Utilities for extracting GHC options needed to compile a given Haskell target. (language, library, mit, program)ranjitjhala
ghc-parser500.0Haskell source parser from GHC. (language, library, mit)gibiansky
ghc-prof-flamegraph130.0Generates data to be used with from .prof files. (library, mit, program, testing)FrancescoMazzoli
ghc-proofs140.0GHC plugin to prove program equations by simplification (compiler-plugin, formal-methods, library, mit)JoachimBreitner
ghc-session80.0Simplified GHC API (language, library, mit, program)danilo2, PiotrMlodawski
ghc-simple370.0Simplified interface to the GHC API. (development, library, mit)AntonEkblad
ghci-lib30.0A library for interactively evaluating Haskell code. (language, library, mit)gibiansky
ghci-pretty600.0colored pretty-printing within ghci (development, library, mit)larsk
ghcjs-ajax90.0Crossbrowser AJAX Bindings for GHCJS (library, mit, web)AlexanderThiemann
ghcjs-codemirror1300.0Installs CodeMirror JavaScript files (library, mit, web)HamishMackenzie
ghcjs-dom812.25DOM library that supports both GHCJS and GHC (library, mit, web)HamishMackenzie
ghcjs-dom-hello190.0GHCJS DOM Hello World, an example package (library, mit, program, web)HamishMackenzie
ghcjs-dom-jsaddle420.0DOM library that supports both GHCJS and GHC using jsaddle (library, mit, web)HamishMackenzie
ghcjs-dom-jsffi740.0DOM library using JSFFI and GHCJS (mit, web)HamishMackenzie
ghcjs-dom-webkit60.0DOM library that supports both GHCJS and WebKitGTK (library, mit, web)HamishMackenzie
ghcjs-hplay180.0Client-side web EDSL for transient nodes running in the web browser (library, mit, web)AlbertoCorona, geraldus
ghcjs-perch160.0GHCJS version of Perch library. (library, mit, web)geraldus
ghcjs-vdom60.0Virtual-dom bindings for GHCJS (library, mit, web)TobiasDammers
ghcjs-websockets (deprecated)140.0Deprecated: use ghcjs-base's native websockets (deprecated, library, mit, web)jle
giak70.0Fuzzy finder for cabal executables (development, mit, program)nmattia
gimlh100.0Haskell parser for GIML (language, library, mit)gazay
ginger1220.0An implementation of the Jinja2 template language in Haskell (library, mit, program, text)TobiasDammers
ginsu200.0Ginsu Gale Client (console, mit, network, program)DylanSimon
gipeda250.0Git Performance Dashboard (development, mit, program)JoachimBreitner
gitdo50.0Create Github issues out of TODO comments in code (mit, program, unclassified)MatthewHall
github-release620.0Upload files to GitHub releases. (library, mit, program, utility)fozworth
github-webhook-handler200.0GitHub WebHook Handler (github, library, mit)wereHamster
github-webhook-handler-snap180.0GitHub WebHook Handler implementation for Snap (github, library, mit)wereHamster
gitlib452.0API library for working with Git repositories (ffi, library, mit)JohnWiegley
gitlib-cmdline200.0Gitlib repository backend that uses the git command-line tool. (git, library, mit)JohnWiegley
gitlib-cross (deprecated)140.0Run tests between repositories (deprecated, ffi, library, mit)JohnWiegley
gitlib-libgit2290.0Libgit2 backend for gitlib (ffi, library, mit)JohnWiegley
gitlib-s3240.0Gitlib repository backend for storing Git objects in Amazon S3 (git, library, mit)JohnWiegley
gitlib-sample (deprecated)180.0Sample backend for gitlib showing the basic structure for any backend. (deprecated, ffi, library, mit)JohnWiegley
gitlib-test190.0Test library for confirming gitlib backend compliance (ffi, library, mit)JohnWiegley
gitlib-utils (deprecated in favor of gitlib)80.0Generic utility functions for working with Git repositories (deprecated, ffi, library, mit)JohnWiegley
gjk122.0Gilbert-Johnson-Keerthi (GJK) collision detection algorithm (graphics, library, mit)zaidan
gloss4132.5Painless 2D vector graphics, animations and simulations. (graphics, library, mit)BenLippmeier, TrevorMcDonell
gloss-algorithms590.0Data structures and algorithms for working with 2D graphics. (graphics, library, mit)BenLippmeier, TrevorMcDonell
gloss-examples1110.0Examples using the gloss library (graphics, mit, program)BenLippmeier, TrevorMcDonell
gloss-raster860.0Parallel rendering of raster images. (graphics, library, mit)BenLippmeier, TrevorMcDonell
gloss-rendering3262.0Gloss picture data types and rendering functions. (graphics, library, mit)BenLippmeier, TrevorMcDonell
gochan170.0Go-style channels (concurrency, library, mit, program)cstrahan
gooey40.0Graphical user interfaces that are renderable, change over time and eventually produce a value. (control, library, mit)SchellScivally
google-cloud150.0Client for the Google Cloud APIs (google, library, mit)wereHamster
google-drive90.0Google Drive API access (library, mit, unclassified)PatrickBrisbin
google-oauth260.0Google OAuth2 token negotiation (library, mit, unclassified)PatrickBrisbin
googlepolyline52.0Google Polyline Encoder/Decoder (data, library, mit, text)lorne
graph-core180.0Fast, memory efficient and persistent graph implementation (data, library, mit)AlexanderThiemann, DavidLeuschner, StefanWehr
graphbuilder40.0A declarative, monadic graph construction language for small graphs (data, library, mit)JosephAbrahamson
graphene80.0A minimal Graph Theory library. (data, library, mit)5outh
gravatar200.0Generate Gravatar image URLs (library, mit, unclassified)DonaldStewart, PatrickBrisbin
gridbounds62.0Collision detection for GridBox (graphics, library, mit)zaidan
gridbox152.0A grid box model (graphics, library, mit)zaidan
gridland80.0Grid-based multimedia engine (game, library, mit)jxv
gross140.0A spoof on gloss for terminal animation (graphics, library, mit, program)sgschlesinger
growler140.0A revised version of the scotty library that attempts to be simpler and more performant. (library, mit, web)IanDuncan
gtk2hs-hello80.0Gtk2Hs Hello World, an example package (graphics, mit, program)HamishMackenzie
guid110.0A simple wrapper around uuid (base, library, mit)tippenein
gyah-bin50.0A binary version of GiveYouAHead (giveyouahead, mit, program)Qinka
h-gpgme90.0High Level Binding for GnuPG Made Easy (gpgme) (cryptography, library, mit)rethab, daveparrish
h-reversi100.0Reversi game in haskell/blank-canvas (game, library, mit, program)apoorvingle
h2048100.0a haskell implementation of Game 2048 (game, library, mit)javran
h2c90.0Bindings to Linux I2C with support for repeated-start transactions. (library, mit, system)eamsden
hCM110.0Conceptual modelling support for Haskell (data-structures, development, library, mit, model, program)MarekSuchanek
hOpenPGP1290.0native Haskell implementation of OpenPGP (RFC4880) (benchmark, codec, data, library, mit)ClintAdams
hablog190.0A blog system (library, mit, program, web)gilmi
hackage-diff72.0Compare the public API of different versions of a Hackage library (distribution, mit, program)blitzcode
hackage-mirror70.0Simple mirroring utility for Hackage (distribution, library, mit, program)MichaelSnoyman, dysinger
hackage-proxy (deprecated)100.0Provide a proxy for Hackage which modifies responses in some way. (deprecated) (deprecated, development, mit, program)MichaelSnoyman
hackernews510.0API for Hacker News (library, mit, program, web)DavidJohnson
hackertyper122.0"Hack" like a programmer in movies and games! (game, mit, program)fgaz
hactor70.0Lightweight Erlang-style actors for Haskell. (concurrency, library, mit)Forkk
hactors20.0Practical actors for Haskell. (concurrency, library, mit)HekaTreep
haggis110.0A static site generator with blogging/comments support (library, mit, program, web)TychoAndersen
hailgun590.0Mailgun REST api interface for Haskell. (library, mit, network)RobertMassaioli, cdepillabout
hailgun-send50.0A program to send emails throught the Mailgun api. (mit, network, program)RobertMassaioli
hails160.0Multi-app web platform framework (library, mit, program, web)AmitLevy, DavidMazieres, DeianStefan
hairy (deprecated)60.0A JSON REST API (benchmark, deprecated, library, mit, program, web)taylorfausak, fozworth
hakismet30.0Akismet spam protection library (library, mit, web)NilsSchweinsberg
hakka120.0Minimal akka-inspired actor library (concurrency, library, mit, program)martinrign
hakyll-contrib-hyphenation90.0automatic hyphenation for Hakyll (library, mit, web)firegurafiku
hakyll-ogmarkup60.0Integrate ogmarkup document with Hakyll (library, mit, web)lethom
hakyll-sass180.0Hakyll SASS compiler over hsass (library, mit, web)meoblast001
hakyll-series120.0Adds series functionality to hakyll (library, mit, web)oisdk
hakyll-shakespeare160.0Hakyll Hamlet compiler (library, mit, web)Eliza0x
halma110.0Library implementing Halma rules (game, library, mit)TimBaumann
halma-gui50.0GTK application for playing Halma (game, mit, program)TimBaumann
halma-telegram-bot60.0Telegram bot for playing Halma (game, mit, program)TimBaumann
hamlet (deprecated in favor of shakespeare)1240.0Haml-like template files that are compile-time checked (deprecated) (deprecated, library, mit, web, yesod)FelipeLessa, GregWeber, MichaelSnoyman
handa-data90.0This package is deprecated. It formerly contained Haskell utilities for data structures and data manipulation. (data, library, mit)BrianBush
handa-gdata270.0Library and command-line utility for accessing Google services and APIs. (library, mit, network, program)BrianBush, RyanNewton
handa-geodata60.0Geographic and Geometric Data (data, geography, geometry, library, mit, program)BrianBush
handa-opengl150.0Utility functions for OpenGL and GLUT (graphics, library, mit)BrianBush
hangman80.0Hangman implementation in Haskell written in two hours. (game, mit, program)HokShunPoon
haphviz170.0Graphviz code generation with Haskell (library, mit, text)Norfair
hapistrano422.25A deployment library for Haskell applications (library, mit, program, system)jsl, stackbuilders, sestrella, mrkkrp, juanpaucar, javcasas
happybara30.0Acceptance test framework for web applications (development, library, mit)cstrahan
happybara-webkit20.0WebKit Happybara driver (development, library, mit)cstrahan
happybara-webkit-server30.0WebKit Server binary for Happybara (taken from capybara-webkit) (development, library, mit)cstrahan
harvest-api50.0Bindings for Harvest API (library, mit, web)jsl, stackbuilders, mrkkrp
hashids250.0Hashids generates short, unique, non-sequential ids from numbers. (library, mit, web)arbelos
hashing120.0A pure haskell library implements several hash algorithms. (cryptography, library, mit, program)wangbj
hashtables-plus (deprecated)60.0Extensions for a "hashtables" library (benchmark, data, data-structures, deprecated, library, mit)NikitaVolkov
haskakafka180.0Kafka bindings for Haskell (library, mit, network, program)tdimson
haskbot-core60.0Easily-extensible chatbot for Slack messaging service (library, mit, network)jonplussed
haskell-bcrypt310.0A bcrypt implementation for haskell (library, mit, system)BrettCarter
haskell-brainfuck60.0BrainFuck interpreter (language, library, mit, program)paraseba
haskell-course-preludes60.0Small modules for a Haskell course in which Haskell is taught by implementing Prelude functionality. (library, mit, unclassified)gibiansky
haskell-go-checkers132.0Go and Checkers game in Haskell (game, mit, program)prateekkumarweb
haskell-igraph140.0Imcomplete igraph bindings (library, math, mit)kaizhang
haskell-import-graph260.0create haskell import graph for graphviz (development, library, mit, program)ncaq
haskell-kubernetes80.0Haskell bindings to the Kubernetes API (via swagger-codegen) (library, mit, web)aaronlevin
haskell-lsp90.0Haskell library for the Microsoft Language Server Protocol (development, library, mit, program)AlanZimmerman, wz1000
haskell-neo4j-client480.0A Haskell neo4j client (database, library, mit)asilvestre
haskell-packages240.0Haskell suite library for package management and integration with Cabal (distribution, library, mit)AdamBergmark, DavidHimmelstrup, RomanCheplyaka, PhilippSchuster, niteria
haskell-read-editor (deprecated in favor of read-editor)20.0Opens a temporary file on the system's EDITOR and returns the resulting edits (deprecated, library, mit, system)yamadapc
haskell-reflect20.0Reflect Haskell types. (haskell, library, mit)JulianFleischer
haskell-spacegoo90.0Client API for Rocket Scissor Spacegoo (game, library, mit)JoachimBreitner
haskell-src-exts-simple590.0A simplified view on the haskell-src-exts AST (development, library, mit)BertramFelgenhauer
haskheap40.0Haskell bindings to refheap. (library, mit, network)AnthonyGrimes
haskmon80.0A haskell wrapper for ( (game, library, mit, web)pjrt
haspell80.0Haskell bindings to aspell (language, library, mit)JoelTaylor
hasql3190.0An efficient PostgreSQL driver and a flexible mapping API (database, hasql, library, mit, postgresql)NikitaVolkov
hasql-backend (deprecated in favor of hasql)140.0API for backends of "hasql" (database, deprecated, library, mit)NikitaVolkov
hasql-cursor-query650.0A declarative abstraction over PostgreSQL Cursor (database, hasql, library, mit, postgresql, streaming)NikitaVolkov
hasql-cursor-transaction810.0An abstraction for simultaneous fetching from multiple PostgreSQL cursors (database, hasql, library, mit, postgresql, streaming)NikitaVolkov
hasql-optparse-applicative850.0"optparse-applicative" parsers for "hasql" (database, hasql, library, mit, options, postgresql)NikitaVolkov
hasql-pool970.0A pool of connections for Hasql (database, hasql, library, mit, postgresql)NikitaVolkov
hasql-postgres (deprecated in favor of hasql)380.0A "PostgreSQL" backend for the "hasql" library (benchmark, database, deprecated, library, mit)NikitaVolkov
hasql-postgres-options (deprecated in favor of hasql-optparse-applicative)120.0An "optparse-applicative" parser for "hasql-postgres" (database, deprecated, library, mit, options)NikitaVolkov
hasql-th150.0Template Haskell utilities for Hasql (database, hasql, library, mit, postgresql, template-haskell)NikitaVolkov
hasql-transaction1410.0A composable abstraction over the retryable transactions for Hasql (database, hasql, library, mit, postgresql)NikitaVolkov
haste-app90.0Framework for type-safe, distributed web applications. (library, mit, web)AntonEkblad
haste-gapi22.0Google API bindings for the Haste compiler (library, mit, web)nyson
haste-markup10.0A port of blaze-markup and blaze-html to Haste (library, mit, web)AnupamJain
hasty-hamiltonian190.0Speedy traversal through parameter space. (library, mit, numeric)JaredTobin
hats80.0Haskell client for the NATS messaging system (benchmark, library, mit, network, program)PatrikSandahl
hax70.0Haskell cash-flow and tax simulation (finance, library, mit, program)johannesgerer
haxparse60.0Readable HaxBall replays (data, library, mit, program)JoelTaylor
hayland (deprecated)50.0Haskell bindings for the C Wayland library. (deprecated, graphics, library, mit, program)AukeBooij
hayoo-cli60.0Hayoo CLI (development, mit, program)Gonzih
hbcd70.0Packed binary-coded decimal (BCD) serialization (data, library, mit)AndrewKay
hdbc-aeson70.0Deserialize from HDBC rows to FromJSON instances (database, library, mit)DanielChoi
hdbc-postgresql-hstore (deprecated in favor of HDBC-postgresql-hstore)30.0Manipulate data in PostgreSQL "hstore" columns. (database, deprecated, library, mit)AlexanderBondarenko
hdevtools1232.5Persistent GHC powered background server for FAST haskell development tools (development, mit, program)BitConnor, SchellScivally, ranjitjhala, ch1bo
hdo191.75A Digital Ocean client in Haskell (cloud, library, mit, program)abailly
headergen80.0Creates a header for a haskell source file. (development, mit, program)bash0r
hebrew-time140.0Hebrew dates and prayer times. (data, library, mit)MichaelSnoyman
heckle320.0Jekyll in Haskell (feat. LaTeX) (library, mit, program, web)2016rshah
hedis-simple20.0A simplified API for hedis (database, library, mit)IanDuncan
helics260.0New Relic® agent SDK wrapper for Haskell. (library, mit, network)HirotomoMoriwaki
helics-wai180.0New Relic® agent SDK wrapper for wai. (library, mit, network)HirotomoMoriwaki
helix20.0Web development micro framework for haskell with typesafe URLs (library, mit, network)AnupamJain
helm382.25A functionally reactive game engine. (frp, game-engine, library, mit, program)ZackCorr, kasbah
help-esb80.0A Haskell client for the team's ESB. (development, library, mit)suitupalex
hemokit210.0Haskell port of the Emokit EEG project (benchmark, bioinformatics, library, mit, program)NiklasHambuechen, PatrickChilton
hen90.0Haskell bindings to Xen hypervisor interface (library, mit, system)FedorGogolev
henet90.0Bindings and high level interface for to ENet v1.3.9 (ffi, library, mit, network)JohnEricson
hepevt80.0HEPEVT parser (library, mit, physics)ScottLawrence
herbalizer190.0HAML to ERB translator (mit, program, utility)DanielChoi
heroku-persistent110.0Parse DATABASE_URL into configuration types for Persistent (library, mit, unclassified)PatrickBrisbin, jferris
herringbone100.0A library for compiling and serving static web assets. (library, mit, web)hdgarrood
herringbone-embed20.0Embed preprocessed web assets in your executable with Template Haskell. (library, mit, web)hdgarrood
herringbone-wai20.0Wai adapter for the Herringbone web asset preprocessor. (library, mit, web)hdgarrood
hesh150.0the Haskell Extensible Shell: Haskell for Bash-style scripts (development, library, mit, program)ChrisForno
hetero-dict460.0Fast heterogeneous data structures (data, library, mit)winterland
heterocephalus270.0A type-safe template engine for working with popular front end development tools (library, mit, web)arowM
heterolist110.0A heterogeneous list type (data, library, mit)clinton
hexpat-lens570.0Lenses for Hexpat. (library, mit, xml)JosephAbrahamson, OliverCharles
hexpress70.0An express-like http framework (library, mit, network)allonsy
hexstring120.0Fast and safe representation of a hex string (data, library, mit)solatis
hfmt210.0Haskell source code formatter (language, library, mit, program)danielstiner
hgearman40.0A Gearman client for Haskell. (library, mit, network)jperson
hgeometric110.0A geometric library with bindings to GPC. (library, math, mit)DonaldStewart, GwernBranwen, MarcoSilva
hgeos200.0Simple Haskell bindings to GEOS C API (data, geography, geometry, library, mit, text)rcook
hgrev202.0Compile Mercurial (hg) version info into Haskell code (development, library, mit)LukeHoersten
hi3status30.0Status line for i3bar. (library, mit, program, system)ScrambledEggs
hidapi170.0Haskell bindings to HIDAPI (hardware, library, mit)NiklasHambuechen, PatrickChilton
hidden-char170.0Provides getHiddenChar function (command-line-tool, library, mit)rcook
highjson180.0Spec based JSON parsing/serialisation (benchmark, json, library, mit, text, web)AlexanderThiemann
highjson-swagger150.0Derive swagger instances from highjson specs (json, library, mit, text, web)AlexanderThiemann
highjson-th130.0Template Haskell helpers for highjson specs (json, library, mit, text, web)AlexanderThiemann
himpy40.0multithreaded snmp poller for riemann (mit, program, system)pyr
hindley-milner30.0Template for Hindley-Milner based languages (language, library, mit)mbg
hinduce-associations-apriori40.0Apriori algorithm for association rule mining (data-mining, library, mit)RobertHensing
hinquire30.0Generate armet style query strings. (library, mit, network)joneshf
hjcase40.0Jcase library for Haskell (data, library, mit)seagreen
hjsonpointer560.0JSON Pointer library (data, library, mit)seagreen
hjsonschema860.0JSON Schema library (data, library, mit)seagreen
hleap60.0Web Socket interface to Leap Motion controller (hardware, library, mit, program)BrianBush
hlibgit2480.0Low-level bindings to libgit2 (ffi, library, mit)JohnWiegley, SakariJokinen
hlibsass410.0Low-level bindings to Libsass (foreign, library, mit)jakubfijalkowski
hogre110.0Haskell binding to a subset of OGRE (graphics, library, mit)AnttiSalonen
hogre-examples60.0Examples for using Hogre. (graphics, mit, program)AnttiSalonen
hoist-error70.0Some convenience facilities for hoisting errors into a monad (control, library, mit)JonSterling
hol360.0Higher order logic (library, logic, mit, program)JoeHurd
holy-project102.0Start your Haskell project with cabal, git and tests. (development, library, mit, program)yogsototh
honi50.0OpenNI 2 binding (graphics, library, mit)NiklasHambuechen, PatrickChilton
hoobuddy50.0Simple tool for fetching and merging hoogle data (development, mit, program)gilligan
hopfield80.0Hopfield Networks, Boltzmann Machines and Clusters (ai, library, machine-learning, mit, program)NiklasHambuechen
hopfield-networks82.0Hopfield Networks for unsupervised learning in Haskell (library, math, mit, program)ajtulloch
houseman50.0A Haskell implementation of Foreman (development, library, mit, program)DaisukeFujimura
hpack5552.0An alternative format for Haskell packages (development, library, mit, program)SimonHengel, SoenkeHahn, TomasJanousek
hpack-convert250.0Convert Cabal manifests into hpack's package.yamls (development, library, mit, program)yamadapc
hpdft60.0A tool for looking through PDF file using Haskell (library, mit, pdf)keiichiroShikano
hpygments70.0Highlight source code using Pygments (library, mit, text)DavidLazar, yamadapc
hpyrg50.0pyrg utility done right (mit, program, text)MatveyAksenov
hquery90.0A query language for transforming HTML5 (library, mit, web)TychoAndersen
hreader-lens130.0Optics for hreader package (data, library, mit)dredozubov
hriemann110.0Initial project template from stack (library, mit, monitoring, program)shmish111
hs-carbon130.0A Haskell framework for parallel monte carlo simulations (library, mit, simulation)cholmgreen
hs-carbon-examples80.0Example Monte Carlo simulations implemented with Carbon (mit, program, simulation)cholmgreen
hs-duktape190.0Haskell bindings for a very compact embedded ECMAScript (JavaScript) engine. (library, mit, web)myfreeweb
hs-gen-iface (deprecated)70.0Utility to generate haskell-names interface files (deprecated, language, mit, program)AdamBergmark, RomanCheplyaka, PhilippSchuster
hs-inspector130.0Haskell source code analyzer (language, library, mit)flbulgarelli
hs-mesos90.0 (library, mit, program, system)IanDuncan
hs-nombre-generator30.0Name generator. (mit, program, web)alvare
hs-re40.0Easy to use Regex (library, mit, unclassified)SKAhack
hs-scrape70.0Simple and easy web scraping and automation in Haskell. (library, mit, web)codygman
hs-snowtify130.0snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2: (mit, program, simple)aiya000
hs-watchman40.0Client library for Facebook's Watchman tool (library, mit, system)BitConnor
hs204850.0A 2048 clone in Haskell. (benchmark, game, library, mit, program)taylorfausak, fozworth
hsass310.0Integrating Sass into Haskell applications. (library, mit, text)jakubfijalkowski
hsbc180.0A command line calculator (mit, program, utilities)georgerogers42
hscaffold160.0Very simple file/directory structure scaffolding writer monad EDSL (development, library, mit, program)yamadapc
hse-cpp92.0Preprocess+parse haskell code (language, library, mit)AdamBergmark, DavidHimmelstrup, RomanCheplyaka, PhilippSchuster
hserv90.0Simple http server in haskell. (mit, network, program)rejuvyesh
hsfilt20.0Z-decoder. (development, mit, program)OmerAgacan
hsilop80.0RPN calculator (math, mit, program)rnhmjoj
hslua18912.0A Lua language interpreter embedding in Haskell (foreign, library, mit)GracjanPolak, OmerAgacan, tarleb
hslua-aeson500.0Allow aeson data types to be used with lua. (foreign, library, mit)tarleb
hspec42322.75A Testing Framework for Haskell (library, mit, testing)GregWeber, SimonHengel, SoenkeHahn, TrystanSpangler, qoelet
hspec-contrib350.0Contributed functionality for Hspec (library, mit, testing)SimonHengel
hspec-core40470.0A Testing Framework for Haskell (library, mit, testing)SimonHengel, SoenkeHahn, qoelet
hspec-discover36910.0Automatically discover and run Hspec tests (library, mit, program, testing)SimonHengel, SoenkeHahn, qoelet
hspec-expectations45040.0Catchy combinators for HUnit (library, mit, testing)SimonHengel, SoenkeHahn
hspec-expectations-lifted150.0A version of hspec-expectations generalized to MonadIO (library, mit, testing)SimonHengel
hspec-expectations-pretty30.0hspec-expectations with pretty printing on failure (library, mit, testing)GregWeber
hspec-expectations-pretty-diff140.0Catchy combinators for HUnit (library, mit, testing)myfreeweb
hspec-experimental20.0An experimental DSL for testing on top of Hspec (library, mit, testing)SimonHengel
hspec-hedgehog60.0Hedgehog support for the Hspec testing framework (library, mit, testing)ErikDeCastroLopo
hspec-jenkins100.0Jenkins-friendly XML formatter for Hspec (library, mit, testing)KoheiSuzuki
hspec-laws60.0Document and test laws for standard type classes (library, mit, testing)SimonHengel
hspec-meta5800.0A version of Hspec which is used to test Hspec itself (library, mit, program, testing)SimonHengel, SoenkeHahn, qoelet
hspec-setup130.0Add an hspec test-suite in one command (development, library, mit, program)yamadapc
hspec-shouldbe (deprecated in favor of hspec)20.0Convenience wrapper and utilities for hspec (deprecated, library, mit, testing)
hspec-smallcheck1700.0SmallCheck support for the Hspec testing framework (library, mit, testing)SimonHengel, qoelet
hspec-structured-formatter130.0 (library, mit, test)flbulgarelli
hspec-test-framework70.0Run test-framework tests with Hspec (library, mit, testing)SimonHengel
hspec-test-framework-th70.0Run test-framework tests with Hspec (library, mit, testing)SimonHengel
hspec-wai1442.0Experimental Hspec support for testing WAI applications (library, mit, testing)DaisukeFujimura, SimonHengel
hspec-wai-json140.0Testing JSON APIs with hspec-wai (library, mit, testing)SimonHengel
hspec-webdriver342.0Write end2end web application tests using webdriver and hspec (library, mit, web)JohnLenz
hspec2 (deprecated in favor of hspec)230.0Alpha version of Hspec 2.0 (deprecated, library, mit, testing)
hspkcs1160.0Wrapper for PKCS #11 interface (cryptography, library, mit, program)denisenkom
hsreadability30.0Access to the Readability API. (library, mit, network-apis, web)rasendubi
hsudoku102.0Sudoku game with a GTK3 interface (game, library, mit, program)mmo
htestu120.0A library for testing correctness of pseudo random number generators in Haskell. (library, mit, program, system)DominicSteinitz
html-conduit1420.0Parse HTML documents using xml-conduit datatypes. (conduit, library, mit, text, web)MichaelSnoyman
html-entities530.0A codec library for HTML-escaped text and HTML-entities (codecs, html, library, mit, parsing)NikitaVolkov
html-tokenizer120.0An "attoparsec"-based HTML tokenizer (html, library, mit, parsing, xml)NikitaVolkov
http-client72932.0An HTTP client engine (library, mit, network)MichaelSnoyman
http-client-conduit (deprecated in favor of http-conduit)130.0Frontend support for using http-client with conduit (deprecated) (deprecated, library, mit, network)MichaelSnoyman
http-client-multipart (deprecated in favor of http-client)90.0Generate multipart uploads for http-client. (deprecated) (deprecated, library, mit, network)MichaelSnoyman
http-client-openssl1140.0http-client backend using the OpenSSL library. (library, mit, network)MichaelSnoyman
http-client-session120.0A simple abstraction over the "http-client" connection manager (library, mit, network)NikitaVolkov
http-client-tls55860.0http-client backend using the connection package and tls library (benchmark, library, mit, network)MichaelSnoyman
http-kit140.0A low-level HTTP library (library, mit, network)SimonHengel
http-media16550.0Processing HTTP Content-Type and Accept headers (library, mit, web)TimothyJones
http-response-decoder110.0Declarative DSL for parsing an HTTP response (library, mit, unclassified)NikitaVolkov
http-trace120.0Tracking http redirects (library, mit, program, web)sigrlami
https-everywhere-rules50.0High-level access to HTTPS Everywhere rulesets. (data, library, mit)vi
hunch90.0CSS-like syntax for file system manipulation. (console, mit, program)loganbraga
hunit-dejafu880.0Deja Fu support for the HUnit test framework. (library, mit, testing)barrucadu
hunit-rematch30.0HUnit support for rematch (library, mit, testing)TomCrayford
hunt-searchengine40.0A search and indexing engine. (data, library, mit, text)alexbiehl
hunt-server40.0A search and indexing engine server. (data, mit, program, text)alexbiehl
hunt-server-cli10.0A Command line Interface for the Hunt server. (console, mit, program)alexbiehl
husk-scheme810.0R5RS Scheme interpreter, compiler, and library. (compilers-interpreters, language, library, mit, program)JustinEthier
husk-scheme-libs80.0Extra libraries for the husk Scheme platform. (compilers-interpreters, language, library, mit)JustinEthier
hutton (deprecated)30.0A program for the button on Reddit. (deprecated, mit, program, utility)fozworth
huzzy60.0Fuzzy logic library with support for T1, IT2, GT2. (library, mit, unclassified)jna_sh
hvect480.0Simple strict heterogeneous lists (data, library, mit)AlexanderThiemann
hw-conduit270.0Conduits for tokenizing streams. (conduit, data, library, mit)haskellworks
hw-json-lens110.0Lens for hw-json (benchmark, data, library, mit)haskellworks
hw-kafka-client1172.0Kafka bindings for Haskell (database, library, mit)newhoggy, alexeyraga
hw-kafka-conduit222.0Conduit bindings for hw-kafka-client (database, library, mit)alexeyraga
hw-mquery160.0Conduits for tokenizing streams. (conduit, data, library, mit, program)haskellworks
hw-succinct240.0Succint datastructures (conduit, data, library, mit)newhoggy, haskellworks
hwsl2130.0Hashing with SL2 (benchmark, data, library, mit)srijs
hwsl2-bytevector10.0A hashed byte-vector based on algebraic hashes and finger trees (data, library, mit)srijs
hwsl2-reducers20.0Semigroup and Reducer instances for Data.Hash.SL2 (data, library, mit)srijs
hx120.0Haskell extras (missing utility functions). (library, mit, utilities)JulianFleischer
hxt18610.0A collection of tools for processing XML with Haskell. (library, mit, xml)IsaacJones, UweSchmidt
hxt-charproperties19630.0Character properties and classes for XML and Unicode (library, mit, text)UweSchmidt
hxt-http1490.0Interface to native Haskell HTTP package HTTP (library, mit, xml)UweSchmidt
hxt-regex-xmlschema18460.0A regular expression library for W3C XML Schema regular expressions (benchmark, library, mit, text)UweSchmidt
hxt-relaxng200.0The HXT RelaxNG validator (library, mit, xml)UweSchmidt
hxt-unicode18800.0Unicode en-/decoding functions for utf8, iso-latin-* and other encodings (library, mit, text)UweSchmidt
hyakko190.0Literate-style Documentation Generator (documentation, mit, program)JeremyHull
hydrogen-cli50.0Hydrogen Data (language, mit, program)JulianFleischer
hydrogen-cli-args60.0Hydrogen Command Line Arguments Parser (language, library, mit)JulianFleischer
hydrogen-multimap80.0Hydrogen Multimap (language, library, mit)JulianFleischer
hydrogen-parsing60.0Hydrogen Parsing Utilities (language, library, mit)JulianFleischer
hydrogen-prelude270.0Hydrogen Prelude (language, library, mit)JulianFleischer
hydrogen-prelude-parsec30.0Hydrogen Prelude /w Parsec (language, library, mit)JulianFleischer
hydrogen-version100.0Hydrogen Version Type (language, library, mit)JulianFleischer
hylide160.0WebGL live-coding environment for writing shaders with Hylogen (graphics, library, mit, program)sleexyz
hylogen412.0GLSL embedded in Haskell (graphics, library, mit)sleexyz
hypher90.0A Haskell neo4j client (database, library, mit)jetaggart
iap-verifier30.0A simple wrapper of In-App-Purchase receipt validate APIs. (library, mit, network)tattsun
ide-backend140.0An IDE backend library (development, library, mit, program)MichaelSloan, MichaelSnoyman
ide-backend-common150.0Shared library used be ide-backend and ide-backend-server (development, library, mit)MichaelSloan, MichaelSnoyman
ide-backend-rts (deprecated in favor of ide-backend-server)70.0RTS for the IDE backend (deprecated, development, library, mit)MichaelSloan, MichaelSnoyman
ide-backend-server80.0An IDE backend server (development, mit, program)MichaelSloan, MichaelSnoyman
idempotent80.0Idempotent monoids (data, library, mit)alynn
ihaskell782.0A Haskell backend kernel for the IPython project. (development, library, mit, program)gibiansky
ihaskell-aeson60.0IHaskell display instances for Aeson (development, library, mit)gibiansky
ihaskell-basic40.0IHaskell display instances for basic types (development, library, mit)gibiansky
ihaskell-blaze70.0IHaskell display instances for blaze-html types (development, library, mit)gibiansky
ihaskell-charts80.0IHaskell display instances for charts types (development, library, mit)gibiansky
ihaskell-diagrams100.0IHaskell display instances for diagram types (development, library, mit)gibiansky
ihaskell-display20.0IHaskell display instances for basic types (development, library, mit)gibiansky
ihaskell-hatex50.0IHaskell display instances for hatex (development, library, mit)gibiansky
ihaskell-juicypixels60.0IHaskell - IHaskellDisplay instances of the image types of the JuicyPixels package. (development, library, mit)gibiansky
ihaskell-magic60.0IHaskell display instances for bytestrings (development, library, mit)gibiansky
ihaskell-parsec50.0IHaskell display instances for Parsec (development, library, mit)gibiansky
ihaskell-plot50.0IHaskell display instance for Plot (from plot package) (development, library, mit)gibiansky
ihaskell-widgets80.0IPython standard widgets for IHaskell. (library, mit, unclassified)gibiansky
immortal260.0Spawn threads that never die (unless told to do so) (concurrency, library, mit)RomanCheplyaka
imports72.0Generate code for importing directories automatically (development, library, mit)CindyLinz
inchworm160.0Inchworm Lexer Framework (library, mit, parsing)BenLippmeier
indices90.0Multi-dimensional statically bounded indices. (benchmark, data, library, mit)MikeLedger
infer-upstream50.0Find the repository from where a given repo was forked (development, mit, program)NoonSilk
inflections1112.0Inflections library for Haskell (library, mit, text)jsl, stackbuilders, sestrella, mrkkrp, camm
inject60.0A minimalistic template engine (library, mit, program, text)SimonHengel
inline-c1282.5Write Haskell source files including C code inline. No FFI required. (ffi, library, mit)FrancescoMazzoli
inline-c-cpp630.0Lets you embed C++ code into Haskell. (ffi, library, mit)FrancescoMazzoli
inline-c-win3210.0Win32 API Context for the inline-c library (ffi, library, mit)anton_dessiatov
inliterate110.0Interactive literate programming (library, mit, program, statistics)glutamate
inserts50.0Stupid simple bytestring templates. (library, mit, text)JosephAbrahamson
integer-logarithms121400.0Integer logarithms. (algorithms, library, math, mit, number-theory)phadej
interchangeable (deprecated)80.0A type class for interchangeable data. (control, deprecated, library, mit)arowM
interlude-l230.0Prelude replacement based on protolude (library, mit, prelude)darwin226
interpolate532.0String interpolation done right (data, library, mit, text)SimonHengel
interspersed180.0An abstraction over interspersing monadic actions (control, library, mit)NikitaVolkov
intro390.0"Fixed Prelude" - Mostly total and safe, provides Text and Monad transformers (library, mit, prelude)minad
intro-prelude50.0Intro reexported as Prelude (library, mit, prelude)minad
introduction30.0A prelude for safe new projects (library, mit, prelude)Norfair
introduction-test10.0A prelude for the tests of safe new projects (library, mit, testing)Norfair
io-throttle50.0Limit number of IO actions started per second (concurrency, library, mit)rodrigosetti
ioctl80.0Type-safe I/O control package (data, library, mit, system)MaciejPiechotka
ioref-stable100.0iorefs with a unique stable index (library, mit, unknown)cocreature
iostring120.0A class of strings that can be involved in IO. (cssyd, library, mit)Norfair
iothread40.0run IOs in a single thread (concurrency, library, mit)tattsun
iotransaction70.0Supports the automatic undoing of IO operations when an exception is thrown. (control, library, mit)DylanShearer
ip-quoter70.0Quasiquoter for IP addresses (library, mit, network)shlevy
ipcvar50.0Simple inter-process communication through IPCVars. (library, mit, system)JohnWiegley
ipython-kernel520.0A library for creating kernels for IPython frontends (development, library, mit)gibiansky
irc-client960.0An IRC client library. (library, mit, network)barrucadu
irc-conduit330.0Streaming IRC message library using conduits. (library, mit, network)barrucadu
irc-ctcp160.0A CTCP encoding and decoding library for IRC clients. (library, mit, network)barrucadu
irc-dcc170.0A DCC message parsing and helper library for IRC clients (library, mit, network)JanGerlinger
isevaluated70.0Check whether a value has been evaluated (data, ghc, library, mit)BertramFelgenhauer, SveinOveAas
iso8601-time630.0Convert to/from the ISO 8601 time format (library, mit, time)AndrasSlemmer, NiklasHambuechen, PatrickChilton
iteratee-parsec80.0Package allowing parsec parser initeratee (data, library, mit, parsing)MaciejPiechotka
ivar-simple120.0Write once concurrency primitives. (concurrency, library, mit)BertramFelgenhauer
j2hs60.0j2hs (ffi-tools, foreign, java, jvm, mit, program)JulianFleischer
jack-bindings (deprecated)80.0DEPRECATED Bindings to the JACK Audio Connection Kit (deprecated, library, mit, sound)PhilippBalzarek
jalaali50.0Convert Jalaali and Gregorian calendar systems to each other (benchmark, library, math, mit)behrang
java-bridge150.0Bindings to the JNI and a high level interface generator. (ffi-tools, foreign, java, jvm, mit)JulianFleischer
java-bridge-extras20.0Utilities for working with the java-bridge package. (ffi-tools, foreign, java, jvm, library, mit)JulianFleischer
java-poker120.0The etude of the Haskell programming (game, library, mit, program)tobynet
java-reflect40.0Tools for reflecting on Java classes. (ffi-tools, foreign, java, jvm, library, mit)JulianFleischer
jbi140.0Just Build It - a "do what I mean" abstraction for Haskell build tools (development, library, mit, program)IvanMiljenovic
jcdecaux-vls50.0JCDecaux self-service bicycles API client (library, mit, web)Herzult
jobqueue100.0A job queue library (client, library, mit, network)ikehara, junjihashimoto, yjkmy
js-flot12010.0Obtain minified flot code (javascript, library, mit)NeilMitchell
js-jquery12740.0Obtain minified jQuery code (javascript, library, mit)NeilMitchell
jsaddle970.0Interface for JavaScript that works with GHCJS and GHC (javascript, library, mit, web)HamishMackenzie
jsaddle-clib130.0Interface for JavaScript that works with GHCJS and GHC (javascript, library, mit, web)HamishMackenzie
jsaddle-dom520.0DOM library that uses jsaddle to support both GHCJS and GHC (library, mit, web)HamishMackenzie
jsaddle-hello50.0JSaddle Hello World, an example package (mit, program, web)HamishMackenzie
jsaddle-warp460.0Interface for JavaScript that works with GHCJS and GHC (javascript, library, mit, web)HamishMackenzie
jsaddle-webkit2gtk210.0Interface for JavaScript that works with GHCJS and GHC (javascript, library, mit, web)HamishMackenzie
jsaddle-webkitgtk190.0Interface for JavaScript that works with GHCJS and GHC (javascript, library, mit, web)HamishMackenzie
jsaddle-wkwebview190.0Interface for JavaScript that works with GHCJS and GHC (javascript, library, mit, web)HamishMackenzie
jsc (deprecated in favor of jsaddle)50.0High level interface for webkit-javascriptcore (deprecated, javascript, library, mit, web)HamishMackenzie
json-api130.0Utilities for generating JSON-API payloads (library, mit, network)toddmohney
json-ast160.0Universal JSON AST datastructure (library, mit, unclassified)NikitaVolkov
json-ast-json-encoder120.0Encoders of JSON AST (library, mit, unclassified)NikitaVolkov
json-ast-quickcheck30.0Compatibility layer for "json-ast" and "QuickCheck" (library, mit, unclassified)NikitaVolkov
json-bytes-builder180.0Direct-to-bytes JSON Builder (benchmark, codecs, json, library, mit)NikitaVolkov
json-encoder (deprecated in favor of json-bytes-builder)160.0A direct-to-bytes single-pass JSON encoder with a declarative DSL (codec, deprecated, json, library, mit)NikitaVolkov
json-feed80.0JSON Feed (library, mit, web)fozworth
json-fu80.0Generic JSON serialization / deserialization (json, library, mit)SimonHengel
json-incremental-decoder90.0Incremental JSON parser with early termination and a declarative DSL (data, json, library, mit, parsing)NikitaVolkov
json-pointer130.0JSON Pointer parsing and interpretation utilities (data, json, library, mit, parsing)NikitaVolkov
json-pointer-aeson140.0Integration layer for "json-pointer" and "aeson" (library, mit, unclassified)NikitaVolkov
json-pointer-hasql60.0JSON Pointer extensions for Hasql (hasql, json, library, mit)NikitaVolkov
json-python60.0Call python inline from haskell (language, library, mit)russell91
json-rpc-client240.0JSON-RPC 2.0 on the client side. (json, library, mit, network)KristenKozak
json-rpc-server302.0JSON-RPC 2.0 on the server side. (json, library, mit, network)KristenKozak
json-togo70.0Effectful parsing of JSON documents (data, library, mit)srijs
json-types80.0Basic types for representing JSON (json, library, mit, text)JohnMillikin
jsonextfilter110.0Filter select values in JSON objects to unix programs (mit, program, web)mackeyrms
jsons-to-schema160.0JSON to JSON Schema (data, json, library, mit, program, web)garetht
jsonsql70.0Interpolate JSON object values into SQL strings (mit, program, text)DanielChoi
jsontsv240.0JSON to TSV transformer (mit, program, text)DanielChoi
jsonxlsx70.0json to xlsx converter (mit, program, text)mackeyrms
juandelacosa170.0Manage users in MariaDB >= 10.1.1 (databases, mit, program, web)ip1981
jump130.0Nothing to see here, move along (data, library, mit)MichaelSnoyman
jupyter90.0A library for creating and using Jupyter kernels. (development, library, mit, program)gibiansky
jvm-binary750.0A library for reading Java class-files (java, language, library, mit)kalhauge
jwt1490.0JSON Web Token (JWT) decoding and encoding (library, mit, web)StefanSaasen
kafka-client (deprecated)50.0Low-level Haskell client library for Apache Kafka 0.7. (deprecated, library, mit, network)abhinav
kafka-device120.0UI device events via a Kafka message broker (hardware, library, mit, program)BrianBush
kafka-device-glut80.0GLUT events via a Kafka message broker (hardware, library, mit, program)BrianBush
kafka-device-joystick80.0Linux joystick events via a Kafka message broker (hardware, library, mit, program)BrianBush
kafka-device-leap70.0Leap Motion events via a Kafka message broker (hardware, library, mit, program)BrianBush
kafka-device-spacenav80.0Linux SpaceNavigator events via a Kafka message broker (hardware, library, mit, program)BrianBush
kafka-device-vrpn60.0VRPN events via a Kafka message broker (library, mit, network, program)BrianBush
kaleidoscope20.0Haskell Kaleidoscope tutorial (compilers, library, mit, program)sdiehl
kalman80.0Kalman and particle filters and smoothers (library, math, mit)DominicSteinitz library (api, library, mit)aaron
kcd100.0Kayak .kcd parsing library. (library, mit, text)marcelbuesing
kdt160.0Fast and flexible k-d trees for various types of point queries. (benchmark, data, library, mit)giogadi
keter842.0Web application deployment manager, focusing on Haskell web frameworks (library, mit, program, web, yesod)MichaelSnoyman, ChristopherReichert
keyring100.0Keyring access (library, mit, system)lunaryorn
keyword-args100.0Extract data from a keyword-args config file format (data, library, mit, program)jsl, stackbuilders, sestrella
kicad-data82.0Parser and writer for KiCad files. (data, library, mit)kasbah
kickass-torrents-dump-parser40.0Parses torrent dumps (library, mit, text)MichaelXavier
kmeans-par160.0Sequential and parallel implementations of Lloyd's algorithm. (algorithm, benchmark, library, mit)vi
knob470.0Memory-backed handles (library, mit, system)JohnMillikin
knots20.0Khovanov homology computations (library, math, mit, program)maltem
koofr-client110.0Client to Koofr API (library, mit, network)edofic API client (library, mit, network)wereHamster
ksystools110.0System management tooling. (library, mit, system)kisom
ktx40.0A binding for libktx from Khronos (graphics, library, mit)Corngood
labyrinth110.0A complicated turn-based game (game, library, mit)AlexeyKotlyarov
labyrinth-server70.0A complicated turn-based game - Web server (game, mit, program)AlexeyKotlyarov
lackey220.0Generate Ruby clients from Servant APIs. (library, mit, web)fozworth
laika60.0Minimalistic type-checked compile-time template engine (library, mit, unclassified)NikitaVolkov
lambda-calculator210.0A lambda calculus interpreter (lambdacalculus, language, library, mit, program, teaching)sgillespie
lambda-canvas40.0Educational drawing canvas for FP explorers. (education, graphics, library, mit)DimitrySolovyov
lambdaBase60.0 (language, library, mit)faleidel
lambdaLit40.0... (language, mit, program)faleidel
lambdacms-core140.0LambdaCms 'core' subsite for Yesod apps (library, mit, web)cies, matsrietdijk
lambdacms-media70.0LambdaCms "media" extension (library, mit, web)cies, matsrietdijk
lambdatwit30.0Lambdabot running as a twitter bot. Similar to the @fsibot f# bot. (mit, program, web)aaronash
language-conf110.0Conf parsers and pretty-printers for the Haskell programming language. (data, library, mit)yamadapc
language-gcl40.0Something similar to Dijkstra's guarded command language (language, library, mit)StijnVanDrongelen
language-hcl100.0HCL parsers and pretty-printers for the Haskell programming language. (benchmark, data, library, mit)yamadapc
language-pig80.0Pig parser in haskell. (language, library, mit)elisehuard
language-typescript90.0A library for working with TypeScript Definition files (language, library, mit)PhilFreeman
language-webidl170.0Parser and Pretty Printer for WebIDL (language, library, mit)izgzhen
latest-npm-version60.0Find the latest version of a package on npm (library, mit, network, program)passy
layout-bootstrap (deprecated)90.0Template and widgets for Bootstrap2 to use with Text.Blaze.Html5 (deprecated, library, mit, text)AlexanderBondarenko
lazyset30.0Set and Map from lazy/infinite lists. (benchmark, data, library, mit)carlos_freund
ldapply50.0LDIF idempotent apply tool (mit, network, program, text)ip1981
leankit-api80.0LeanKit API (api, library, mit)dtorok
learning-hmm190.0Yet another library for hidden Markov models (algorithms, library, machine-learning, mit, statistics)mnacamura
lens-aeson6402.5Law-abiding lenses for aeson (library, mit, numeric)EdwardKmett, EricMertens, ryanglscott
lens-text-encoding30.0Isomorphisms and prisms for text <=> bytestring conversions (library, mit, text)IanDuncan
lens-time40.0lens for Data.Time (data, library, mit)TatsuyaTouma
lexer-applicative100.0Simple lexer based on applicative regular expressions (language, library, mit)RomanCheplyaka
lha30.0Data structures for the Les Houches Accord (library, mit, physics)ScottLawrence
lhe150.0Parser and writer for Les-Houches event files (data, library, mit, physics)ScottLawrence
lhs2TeX-hl200.0Literate highlighter preprocessor for lhs2tex (development, language, mit, program)AlessandroVermeulen
libinfluxdb280.0libinfluxdb (database, library, mit)wereHamster
liblastfm360.0Lastfm API interface (library, mit, network-apis)DmitryMalikov, MatveyAksenov
libmpd2080.0An MPD client library. (library, mit, network, sound)BenSinclair, JoachimFasting, SimonHengel
libnotify200.0Bindings to libnotify library (desktop, library, mit, system)MatveyAksenov
libnvvm20.0FFI binding to libNVVM, a compiler SDK component from NVIDIA (foreign, library, mit)seanprime7
librandomorg20.0Wrapper to API (library, mit, network-apis)MatveyAksenov
librato80.0Bindings to the Librato API (library, mit, network)IanDuncan
libstackexchange100.0StackExchange API interface (library, mit, networkapis)MatveyAksenov
libxls20.0Bindings to libxls (ffi, library, mit)uuhan
libxml-enumerator (deprecated)100.0Enumerator-based API for libXML's SAX interface (deprecated, enumerator, library, mit, parsing, text, xml)JohnMillikin
libxml-sax1390.0Bindings for the libXML2 SAX interface (foreign, library, mit, parsing, text, xml)JohnMillikin
libzfs160.0Bindings to libzfs, for dealing with the Z File System and Zpools. (library, mit, program, system)implementation
licensor180.0A license compatibility helper (distribution, library, mit, program)jpvillaisaza
lifted-protolude120.0A sensible set of defaults for writing lifted custom Preludes. (library, mit, prelude)parsonsmatt
ligature40.0Expand ligatures in unicode text (library, mit, text)JosefSvenningsson
limp132.0representation of Integer Linear Programs (library, mit, numeric)amosrobinson
limp-cbc80.0bindings for integer linear programming solver Coin/CBC (library, mit, numeric)amosrobinson
lindenmayer70.0L-systems in Haskell (formal-languages, library, mit)reinh
linux-cgroup70.0Very basic interface to the Linux CGroup Virtual Filesystem (library, mit, system)clord
linux-ptrace50.0Wrapping of Linux' ptrace(2). (library, mit, system)RichardSmith, kriztw
linx-gateway50.0Implementation of the Enea LINX gateway protocol. (library, mit, network, program)PatrikSandahl
list-t9462.0ListT done right (control, data-structures, library, mit, streaming)NikitaVolkov
list-t-attoparsec160.0An "attoparsec" adapter for "list-t" (library, mit, parsing, streaming)NikitaVolkov
list-t-html-parser120.0Streaming HTML parser (html, library, mit, parser, streaming)NikitaVolkov
list-t-http-client20.0A streaming HTTP client (http, library, mit, streaming)NikitaVolkov
list-t-libcurl130.0A "libcurl"-based streaming HTTP client (http, library, mit, streaming)NikitaVolkov
list-t-text110.0A streaming text codec (codec, library, mit, streaming)NikitaVolkov
literals60.0Non-overloaded functions for concrete literals. (data, library, mit)JulianFleischer
ll-picosat30.0 (library, mit, unclassified)DanielWaterworth
llsd30.0An implementation of the LLSD data system (library, mit, networking, program)BryanOSullivan
lmonad50.0LMonad is an Information Flow Control (IFC) framework for Haskell applications. (library, mit, security)jp_rider
lmonad-yesod80.0LMonad for Yesod integrates LMonad's IFC with Yesod web applications. (library, mit, security, web, yesod)jp_rider
log-effect80.0An extensible log effect using extensible-effects (control, effect, library, logging, mit)ibotty
log-warper11880.0Flexible, configurable, monadic and pretty logging (library, logging, mit, program)Artyom, gromak, volhovm, shersh
logging470.0Simplified logging in IO for application writers. (library, mit, system)JohnWiegley, aupiff
logging-facade800.0Simple logging abstraction that allows multiple back-ends (library, mit, system)SimonHengel, SoenkeHahn, qoelet
logging-facade-journald20.0Journald back-end for logging-facade (library, mit, system)SoenkeHahn
logplex-parse50.0Parse Heroku application/logplex documents (library, mit, text)keith_duncan
logsink140.0A logging framework for Haskell (library, mit, system)SimonHengel, jkarni
loop1830.0Fast loops (for when GHC can't optimize forM_) (benchmark, control, library, mit)NiklasHambuechen
loshadka40.0Minecraft 1.7 server proxy that answers to queries when the server is offline (mit, network, program)LnYnp6WCYyKG3yhdLDztVRuQjTFKEy
loup330.0Amazon Simple Workflow Service Wrapper for Work Pools. (aws, cloud, distributed-computing, library, mit, network, program)markfine
ltiv1p1150.0Partial implementation of a service provider for LTI 1.1. (library, mit, network, web)achirkin
lua-bc160.0Lua bytecode parser (language, library, mit)EricMertens
luautils150.0Helpers for Haskell integration with Lua (library, mit, scripting)AnupamJain
lucid-extras160.0Generate more HTML with Lucid (library, mit, web)glutamate
lushtags30.0Create ctags compatible tags files for Haskell programs (development, mit, program)BitConnor
lye60.0A Lilypond-compiling music box (mit, program, sound)CorbinSimpson
mackerel-client550.0An API client library for Mackerel (library, mit, web)itchyny
maclight60.0Control screen and keyboard backlights on MACs under Linux (apple, library, mit, program)TychoAndersen
mailchimp110.0Bindings for the MailChimp API (library, mit, web)jpvillaisaza
mailchimp-subscribe40.0MailChimp subscription request handler (mail, mit, program)mietek
mailgun80.0Connector to Rackspace's Mailgun Service (library, mit, program, web)andrewrademacher
make-monofoldable-foldable140.0Make a MonoFoldable type into an ordinary Foldable type. (data, library, mit)clinton
makefile240.0Simple Makefile parser and generator (library, mit, parsing)nmattia
mallard1340.0Database migration and testing as a library. (database, library, mit, program)andrewrademacher
mandrill1360.0Library for interfacing with the Mandrill JSON API (library, mit, network)AlfredoDiNapoli
markdown-unlit630.0Literate Haskell support for Markdown (development, library, mit, program)SimonHengel
markov-processes60.0Hidden Markov processes. (ai, library, mit)vi
markup970.0Abstraction for HTML-embedded content (data, library, mit, web)athanclark
marmalade-upload140.0Upload packages to Marmalade (development, library, mit, program)lunaryorn
master-plan130.0The project management tool for hackers (library, mit, program, tools)rodrigosetti
matcher110.0A composable abstraction for checking or converting a context value (library, mit, unclassified)NikitaVolkov
maude120.0An interface to the Maude rewriting system. (language, library, mit)DavidLazar
mcmaster-gloss-examples20.0 (graphics, mit, program)yuriyt
mcmc-types150.0Common types for sampling. (library, math, mit, numeric)JaredTobin
mdcat70.0Markdown viewer in your terminal (library, mit, program, text)bobfang1992
mdp90.0Tools for solving Markov Decision Processes. (algorithms, library, math, mit, program)prsteele
mealstrom32.0Manipulate FSMs and store them in PostgreSQL. (control, database, library, mit)amx
means80.0calculate varieties of mean/average using semigroup. (data, library, mit)winterland
mega-sdist290.0Handles uploading to Hackage from mega repos (distribution, mit, program)MichaelSnoyman
melody30.0A functional scripting language (language, library, mit, program)jozefg
memcache-conduit50.0Conduit library for memcache procotol (library, mit, network)junjihashimoto
memcache-haskell70.0Memcache procotol library (library, mit, network)ikehara, junjihashimoto, yjkmy
memcached-binary160.0memcached client using binary protocol. (database, library, mit)HirotomoMoriwaki
memis60.0Memis Efficient Manual Image Sorting (data, mit, program)johannesgerer
memo-ptr20.0Pointer equality memoization (control, library, mit)edofic
memoization-utils60.0Utilities for memoizing functions (control, library, mit)yamadapc
mercury-api230.0Haskell binding to Mercury API for ThingMagic RFID readers (hardware, library, mit, program)ppelleti
messagepack310.0Serialize instance for Message Pack Object (data, library, mit)rodrigosetti
messagepack-rpc150.0Message Pack RPC over TCP (library, mit, network)rodrigosetti
messente50.0Messente SMS Gateway (api, library, mit)kaiko
metric90.0Metric spaces. (data, library, mit)vi
metrics220.0High-performance application metric tracking (data, library, mit)IanDuncan
mezzo500.0Typesafe music composition (library, mit, music)DimaSamoz
mgeneric80.0Generics with multiple parameters (data, library, mit)rbocquet
mi50.0Multiple Instance for Haskell (language, library, mit)matt
microlens-aeson210.0Law-abiding lenses for Aeson, using microlens. (library, mit, numeric)fosskers
mighty-metropolis200.0The Metropolis algorithm. (library, mit, numeric)JaredTobin
mime-mail1780.0Compose MIME email messages. (email, library, mit)MichaelSnoyman
mime-mail-ses570.0Send mime-mail messages via Amazon SES (library, mit, web)MichaelSnoyman
mime-types55050.0Basic mime-type handling types and functions (library, mit, web)MichaelSnoyman
miniforth50.0Miniature FORTH-like interpreter (language, library, mit, program)L8D
minisat-solver90.0High-level Haskell bindings for the MiniSat SAT solver. (benchmark, library, logic, mit)PeterSelinger
minlen90.0Express the minimum length of a container in its type (data, library, mit)MichaelSnoyman
mixed-strategies20.0Find optimal mixed strategies for two-player games (library, math, mit, program)BartonMassey
mockery780.0Support functions for automated testing (library, mit, testing)SimonHengel, SoenkeHahn
modular-prelude (deprecated)50.0A new Prelude featuring first class modules (control, deprecated, library, mit)DanBurton
modular-prelude-classy (deprecated)20.0Reifying ClassyPrelude a la ModularPrelude (control, deprecated, library, mit)DanBurton
mole220.0A glorified string replacement tool (mit, program, system)wereHamster
monad-classes172.0more flexible mtl (control, library, mit)MatthewFarkasDyck
monad-gen150.0A simple monad for generating fresh integers (library, mit, utility)jozefg
monad-levels30.0Specific levels of monad transformers (control, library, mit)IvanMiljenovic
monad-log40.0A simple and fast logging monad (development, library, mit)winterland
monad-logger9430.0A class of monads which can log messages. (library, mit, system)MichaelSnoyman
monad-logger-json60.0JSON-friendly Logging APIs (library, logging, mit)MichaelSnoyman, dysinger
monad-logger-syslog180.0syslog output for monad-logger (library, logging, mit)GregWeber, MichaelSnoyman, dysinger
monad-metrics240.0A convenient wrapper around EKG metrics (library, mit, web)parsonsmatt
monad-open20.0Open recursion for when you need it (control, library, mit)JonSterling
monad-parallel-progressbar50.0Parallel execution of monadic computations with a progress bar (control, library, mit, monads, system, user-interfaces)mnacamura
monad-recorder140.0Record and replay the results of monadic actions (general, library, mit)harendra
monad-timing110.0Monad transformer for recording timing events (control, library, mit)pikajude
monad-unify80.0Generic first-order unification (library, mit, unification)PhilFreeman
monad-unlift1920.0Typeclasses for representing monad transformer unlifting (control, library, mit)MichaelSnoyman
monad-unlift-ref152.0Typeclasses for representing monad transformer unlifting (control, library, mit)MichaelSnoyman
mondo (deprecated in favor of monzo)90.0Haskell bindings for the Mondo API (deprecated, library, mit, web)mbg
money80.0Money (finance, library, mit)jpvillaisaza
mongodb-queue250.0message queue using MongoDB (database, library, mit)GregWeber
mongrel2-handler100.0Mongrel2 Handler Library (library, mit, web)BardurArantsson
monitor60.0Do things when files change. (mit, program, system)MartinStensgard
mono-traversable14010.0Type classes for mapping, folding, and traversing monomorphic containers (benchmark, data, library, mit)GregWeber, MichaelSnoyman
mono-traversable-instances720.0Extra typeclass instances for mono-traversable (data, library, mit)MichaelSnoyman
mono-traversable-wrapper140.0Wrapper providing Foldable instance for MonoFoldables. (data, library, mit)oisdk
monoid-absorbing430.0A library for (left, right) zero monoids and backtracking with cut (algebra, library, mit)maciejpirog
monzo30.0Haskell bindings for the Monzo API (library, mit, web)mbg
moving-averages110.0This is a library for calculating moving averages on lists of numbers. (library, mathematics, mit)joshuaclayton
mqtt130.0An MQTT protocol implementation. (benchmark, iot, library, mit, network)LarsPetersen
msh80.0Object-Oriented Programming in Haskell (language, library, mit)mbg
msu70.0Monitor Setup Utility (mit, program, unclassified)PatrickBrisbin
mtl-prelude210.0Reexports of most definitions from "mtl" and "transformers" (library, mit, prelude)NikitaVolkov
muesli80.0A simple document-oriented database (database, library, mit)CalinArdelean
mulang20.0The Mu Language, a non-computable extended Lambda Calculus (language, library, mit)flbulgarelli
multi-cabal30.0A tool supporting multi cabal project builds. (development, library, mit, program)bash0r
multi-trie110.0Trie of sets, as a model for compound names having multiple values (data, library, mit)vadimvinnik
multimap230.0A multimap. (data-structures, library, mit)JulianFleischer
multipath90.0Parser and builder for unix-path-like objects. (codec, library, mit)SupraSummus
multiplate70.0Lightweight generic library for mutually recursive data types. (generics, lenses, library, mit)RussellOConnor
multiplate-simplified20.0Shorter, more generic functions for Multiplate. (generics, library, mit)BalazsEndresz
mustache-haskell90.0Straight implementation of mustache templates (library, mit, program, text)DanielChoi
mutable-containers900.0Abstactions and concrete implementations of mutable containers (benchmark, data, library, mit)MichaelSnoyman
mwc-probability330.0Sampling function-based probability distributions. (library, math, mit)JaredTobin
mxnet320.0MXNet interface in Haskell. (library, machine-learning, mit)sighingnow
mxnet-examples250.0Examples for MXNet in Haskell. (machine-learning, mit, program)sighingnow
mxnet-nnvm (deprecated in favor of mxnet)80.0NNVM interface in Haskell. (deprecated, library, machine-learning, mit)sighingnow
myo70.0Haskell binding to the Myo armband (library, mit, program, system)AlfredoDiNapoli
mysql-effect60.0An extensible mysql effect using extensible-effects and mysql-simple (database, effect, library, mit)ibotty
mystem40.0Bindings for Mystem morphological analyzer executabe (library, mit, natural-language-processing, program)wapxmas
mywatch210.0Web application to view and kill MySQL queries (databases, mit, program, web)ip1981
nagios-check100.0Package for writing monitoring plugins (library, metrics, mit, monitoring, system)fractalcat
nagios-plugin-ekg80.0Monitor ekg metrics via Nagios (library, mit, program, system)fractalcat
named-records230.0Flexible records with named fields. (data, library, mit, records)JulianFleischer
namelist30.0fortran90 namelist parser/pretty printer (library, mit, text)HirotomoMoriwaki
names150.0Type level names. (data, library, mit, type-system)JulianFleischer
nano-erl80.0Small library for Erlang-style actor semantics (concurrency, library, mit)TomMurphy
nanomsg-haskell140.0Bindings to the nanomsg library (benchmark, library, mit, network)inymoen, IvarNymoen
nanospec130.0A lightweight implementation of a subset of Hspec's API (library, mit, testing)SimonHengel
nat-sized-numbers110.0Variable-sized numbers from type-level nats. (library, mit, numeric)oisdk
ndjson-conduit150.0Conduit-based parsing and serialization for newline delimited JSON. (data, library, mit)srijs
neat50.0A Fast Retargetable Template Engine (library, mit, program, text)ajg
neat-interpolation8802.0A quasiquoter for neat and simple multiline text interpolation (library, mit, quasiqoutes, string)NikitaVolkov
needle50.0ASCII-fied arrow notation (control, library, mit)ScrambledEggs
netpbm240.0Loading PBM, PGM, PPM image files (benchmark, codec, graphics, library, mit)NiklasHambuechen, PatrickChilton
nettle620.0safe nettle binding (cryptography, library, mit)stbuehler
netwire-input120.0Input handling abstractions for netwire (game, library, mit)Mokosha
netwire-input-glfw140.0GLFW instance of netwire-input (game, library, mit)Mokosha
netwire-vinylglfw-examples60.0Netwire/GLFW/VinylGL input handling demo (game, mit, program)RandKleisli
network-address60.0IP data structures and textual representation (data, library, mit, network)SebastianNowicki
network-anonymous-i2p120.0Haskell API for I2P anonymous networking (library, mit, network)solatis
network-anonymous-tor120.0Haskell API for Tor anonymous networking (library, mit, network, program)solatis
network-attoparsec150.0Utility functions for running a parser against a socket (library, mit, network, parsing)solatis
network-conduit-tls470.0Create TLS-aware network code with conduits (library, mit, network)MichaelSnoyman
network-enumerator (deprecated)210.0Enumerators for network sockets (data, deprecated, enumerator, library, mit)JohnMillikin
network-service50.0Provide a service at the data type level. (library, mit, network)angerman
network-transport-amqp30.0AMQP-based transport layer for distributed-process (aka Cloud Haskell) (library, mit, network)AlfredoDiNapoli
network-uri-static50.0A small utility to declare type-safe static URIs (library, mit, network)snak
network-wai-router70.0A routing library for wai (library, mit, web)georgerogers42
neural182.0Neural Networks in native Haskell (benchmark, library, machine-learning, mit, program)lbrunjes
newtype-deriving80.0Instance derivers for newtype wrappers (control, library, mit, template-haskell)NikitaVolkov
ngrams-loader40.0Ngrams loader based on format (data, library, mit, program)YorickLaupa
niagra182.0High performance CSS EDSL (data, library, mit)natesymer
nice-html170.0A fast and nice HTML templating library with distinct compilation/rendering phases. (benchmark, library, mit, web)MikeLedger
nicify130.0Pretty print the standard output of default `Show` instances. (mit, program, text, tools, utilities)JulianFleischer
nicify-lib60.0Pretty print the standard output of default `Show` instances. (library, mit, text, tools, utilities)JulianFleischer
nixfromnpm110.0Generate nix expressions from npm packages. (mit, nix, program, tools)thinkpad20
noether90.0Math in Haskell. (benchmark, library, math, mit, program)mrkgnao
noise30.0A friendly language for graphic design (library, mit, program, text)TomBrow
nonfree110.0Free structures sans laws (debug, library, mit)ShachafBenKiki
nth-prime70.0Computing the nth prime (mit, number-theory, program)JoeHurd
number90.0A library for real numbers (library, math, mit)rnhmjoj
numeric-qq130.0Quasi-quoters for numbers of different bases (library, mit, numeric, quasiquotes)NikitaVolkov
numeric-ranges30.0A framework for numeric ranges. (library, mit, numeric)NicolasDelPiano
oauthenticated90.0Simple OAuth for http-client (library, mit, network, web)JosephAbrahamson, ibotty
octane810.0Parse Rocket League replays. (game, library, mit, program)fozworth
octohat110.0A tested, minimal wrapper around GitHub's API. (library, mit, network, program)jsl, stackbuilders, sestrella
oden-go-packages60.0Provides Go package metadata. (language-tools, library, mit)owickstrom
ogmarkup142.0A lightweight markup language for story writers (library, mit, web)lethom
oidc-client140.0OpenID Connect 1.0 library for RP (library, mit, web)ShoKuroda
on-demand-ssh-tunnel80.0Program that sends traffic through SSH tunnels on-demand (library, mit, network, program)pedja
one-time-password130.0HMAC-Based and Time-Based One-Time Passwords (cryptography, library, mit)AlekseyUymanov
oneormore50.0A never-empty list type. (data, library, mit)thinkpad20
onu-course80.0Code for the Haskell course taught at the Odessa National University in 2012 (education, library, mit)RomanCheplyaka
opaleye-classy80.0Opaleye wrapped up in classy MTL attire. (database, library, mit)BenKolera
open-signals130.0A mechanism similar to checked exceptions that integrates with MTL and transformer stacks (control, library, mit)darwin226
open-union500.0Extensible, type-safe unions. (data, library, mit, program)BenFoppa
opengl-dlp-stereo170.0Library and example for using DLP stereo in OpenGL (graphics, library, mit, program)BrianBush
opengl-spacenavigator150.0Library and example for using a SpaceNavigator-compatible 3-D mouse with OpenGL (graphics, library, mit, program)BrianBush
opensource100.0Haskell API Wrapper for the Open Source License API (library, mit, network)ClintAdams
openssh-github-keys50.0Fetch OpenSSH keys from a GitHub team (library, mit, program, system)jsl, stackbuilders, sestrella
opentheory170.0The standard theory library (formal-methods, library, mit)JoeHurd
opentheory-bits80.0Natural number to bit-list conversions (formal-methods, library, mit)JoeHurd
opentheory-byte80.0Bytes (formal-methods, library, mit)JoeHurd
opentheory-char (deprecated in favor of opentheory-unicode)50.0Unicode characters (deprecated, library, mit, program, text)JoeHurd
opentheory-divides90.0The divides relation on natural numbers (library, mit, number-theory)JoeHurd
opentheory-fibonacci50.0Fibonacci numbers (library, mit, number-theory)JoeHurd
opentheory-parser100.0Stream parsers (library, mit, parsing)JoeHurd
opentheory-prime110.0Prime natural numbers (library, mit, number-theory)JoeHurd
opentheory-primitive180.0Haskell primitives used by OpenTheory packages (formal-methods, library, mit)JoeHurd
opentheory-probability100.0Probability (formal-methods, library, mit)JoeHurd
opentheory-stream80.0Infinite stream types (library, list, mit)JoeHurd
opentheory-unicode90.0Unicode characters (library, mit, text)JoeHurd
operate-do110.0Simple project template from stack (library, meta, mit)mizunashi_mana
operational-class90.0MonadProgram typeclass for the operational package (control, library, mit)srijs
option80.0A strict version of Maybe (data, library, mit)georgerogers42
options660.0A powerful and easy-to-use command-line option parser. (console, library, mit)JohnMillikin
options-time80.0Command-line option types for dates and times. (console, library, mit)JohnMillikin
optparse-applicative-simple110.0Simple command line interface arguments parser (cli, library, mit, options, parsing)NikitaVolkov
optparse-declarative92.0Declarative command line option parser (library, mit, system)HideyukiTanaka
ot100.0Real-time collaborative editing with Operational Transformation (library, mit, text)TimBaumann
overload160.0Finite overloading (control, library, mit)darwin226
overture (deprecated in favor of flow)110.0An alternative to some of the Prelude. (benchmark, deprecated, library, mit, prelude)fozworth
package-description-remote140.0Fetches a 'GenericPackageDescription' from Hackage (library, mit, web)yamadapc
pagarme30.0Pagarme API wrapper (library, mit, program, web)diogob
pandoc-csv2table280.0Convert CSV to Pandoc Table Markdown (library, mit, program, text)baig
pandoc-include540.0Include other Markdown files (library, mit, program, text)steindani
pandoc-plantuml-diagrams120.0Render and insert PlantUML diagrams with Pandoc (library, mit, program, text)thriqon
pandoc-sidenote210.0Convert Pandoc Markdown-style footnotes into sidenotes (commandline, library, mit, program)jez
pandoc-unlit (deprecated in favor of markdown-unlit)50.0Literate Haskell support for GitHub's Markdown flavor (deprecated, development, mit, program)SimonHengel
pansite60.0Pansite: a simple web site management tool (library, mit, program, web)rcook
paranoia60.0http proxy server (library, mit, program, web)troydm
parsec-free170.0Parsec API encoded as a deeply-embedded DSL, for debugging and analysis (library, mit, text)JohnWiegley
parsec-pratt100.0Pratt Parser combinator for Parsec (library, mit, program, text)jh3141
parsec-trace60.0Add a hierarchical trace to Parsec parsers. (library, mit, parsing)sleepomeno
parseerror-eq40.0Adds and Eq instance for Parsec's ParseError if needed (library, mit, text)jsl, sestrella
partial60.0A nullary type class for partial functions (control, library, mit)PhilFreeman
partial-handler380.0A composable exception handler (error-handling, exceptions, failure, library, mit)NikitaVolkov
partial-lens (deprecated in favor of data-lens)30.0Haskell 98 Partial Lenses (comonads, control, deprecated, library, mit)RussellOConnor
passwords170.0Password generation/validation library (cryptography, library, mit)mkulkin
pathfinding70.0pathfinding in grid and graphs (algorithm, library, mit)rvion
pathwalk140.0Path walking utilities for Haskell programs (library, mit, system)chadaustin, Xena
patronscraper60.0A webpage scraper for Patreon which dumps a list of patrons to a text file. (mit, program, web)Forkk
pattern-arrows1002.0Arrows for Pretty Printing (combinators, library, mit, pretty-printer, text)PhilFreeman
paypal-adaptive-hoops (deprecated)180.0Client for a limited part of PayPal's Adaptive Payments API (deprecated, library, mit, program, web)fanjam
paypal-rest-client50.0A client to connect to PayPal's REST API (v1) (library, mit, network)meoblast001
pcf30.0A one file compiler for PCF (compiler, library, mit)jozefg
pdfname150.0Name a PDF file using information from the pdfinfo command (mit, pdf, program)AndresSicardRamirez
pell120.0Package to solve the Generalized Pell Equation. (algorithms, library, math, mit, number-theory)lbrunjes
penrose60.0A system that automatically visualize mathematics (mit, program, unclassified)wodeni
peregrin110.0Database migration support for use in other libraries. (database, library, mit)BardurArantsson
persistent11830.0Type-safe, multi-backend data serialization. (database, library, mit, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi, paulrouse, MaxGabriel
persistent-database-url62.0Parse DATABASE_URL into configuration types for Persistent (database, library, mit)jferris, jsteiner
persistent-mongoDB970.0Backend for the persistent library using mongoDB. (database, library, mit)GregWeber, MichaelSnoyman, psibi, paulrouse
persistent-mysql780.0Backend for the persistent library using MySQL database server. (database, library, mit, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi, paulrouse, MaxGabriel
persistent-mysql-haskell750.0A pure haskell backend for the persistent library using MySQL database server. (database, library, mit, program, yesod)naushadh
persistent-odbc90.0Backend for the persistent library using ODBC (database, library, mit, yesod)gbwey
persistent-postgresql1280.0Backend for the persistent library using postgresql. (database, library, mit, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi, paulrouse
persistent-ratelimit180.0A library for rate limiting activities with a persistent backend. (database, library, mit)jp_rider
persistent-sqlite4420.0Backend for the persistent library using sqlite3. (database, library, mit, yesod)GregWeber, MichaelSnoyman, psibi, paulrouse
persistent-template5800.0Type-safe, non-relational, multi-backend persistence. (database, library, mit, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi, paulrouse
pianola (deprecated)20.0Remotely controlling Java Swing applications (deprecated, gui, jvm, library, mit)DanielDiazCarrete
picologic120.0Utilities for symbolic predicate logic expressions (library, logic, mit)sdiehl
picosat112.0Bindings to the PicoSAT solver (library, logic, mit)sdiehl
pid11770.0Do signal handling and orphan reaping for Unix PID1 init processes (library, mit, program, system)MichaelSnoyman
pinboard840.0Access to the Pinboard API (library, mit, network-apis)jonschoning
pipes-cereal-plus80.0A streaming serialization library on top of "pipes" and "cereal-plus" (library, mit, pipes, serialization)NikitaVolkov
pipes-csv330.0Fast, streaming csv parser (csv, library, mit, pipes)GabrielGonzalez, WilliamCasarin
pipes-kafka140.0Kafka in the Pipes ecosystem (library, mit, network)boothead
pipes-mongodb40.0Stream results from MongoDB (database, library, mit)WilliamCasarin
pipes-postgresql-simple (deprecated in favor of streaming-postgresql-simple, streaming-utils)170.0Convert various postgresql-simple calls to work with pipes (database, deprecated, library, mit, pipes)OliverCharles
pipes-wai130.0A port of wai-conduit for the pipes ecosystem (library, mit, pipes, web)IanDuncan
pit60.0Account management tool. (library, mit, program, tools)chiro
pitchtrack40.0Pitch tracking library (library, mit, sound)lortabac
pixelated-avatar-generator80.0A library and application for generating pixelated avatars. (graphics, image, library, mit, program)ExcaliburZero
pkcs780.0PKCS #7 padding in Haskell (crypto, library, mit)kisom
plocketed80.0plot data from stdin through socketed (mit, program, web)sencenan
plotlyhs170.0Haskell bindings to Plotly.js (charts, graphics, library, mit)glutamate
plotserver-api80.0Plotserver API (api, library, mit)dtorok
pocket90.0Bindings for the Pocket API (library, mit, web)jpvillaisaza
pokitdok (deprecated)60.0PokitDok Platform API Client for Haskell (api, deprecated, library, mit)Decryptic
polydata660.0Wrap together data and it's constraints. (data, library, mit)clinton
ponder30.0PEG parser combinator (library, mit, parsing)matt
pool-conduit (deprecated in favor of resource-pool)190.0Resource pool allocations via ResourceT. (deprecated) (conduit, database, deprecated, library, mit, yesod)MichaelSnoyman
populate-setup-exe-cache80.0Empty Cabal package (distribution, library, mit)mietek
portable-template-haskell-lens100.0Lenses for the AST of Template Haskell 2.11 and Template Haskell < 2.11 (language, library, mit)aminb, SimonHudon
posix-waitpid30.0Low-level wrapping of POSIX waitpid(2). (library, mit, system)RichardSmith, kriztw
postgres-embedded2690.0Library for easily running embedded PostgreSQL server for tests (lib, library, mit)ilya_murzinov
postgresql-binary2380.0Encoders and decoders for the PostgreSQL's binary format (benchmark, codecs, database, library, mit, parsing, postgresql)NikitaVolkov
postgresql-cube50.0Cube support for postgresql-simple (database, library, mit)inaimathi
postgresql-error-codes130.0PostgreSQL error codes (database, error-handling, library, mit, postgresql)NikitaVolkov
postgresql-simple-sop140.0Generic functions for postgresql-simple (library, mit, unclassified)glutamate
postgresql-simple-url140.0Parse postgres:// url into ConnectInfo (game, library, mit)phadej
postgresql-syntax (deprecated)130.0PostgreSQL SQL syntax utilities (database, deprecated, library, mit, postgresql)NikitaVolkov
postgresql-transactional92.0a transactional monad on top of postgresql-simple (database, library, mit)patrick_thomson
postgrest560.0REST API for any Postgres database (library, mit, program, web)begriffs
powermate150.0bindings for Griffin PowerMate USB (hardware, library, mit, program, system)EvanMartin, GwernBranwen, ppelleti
pptable130.0Pretty Print containers in a tabular format (library, mit, text)gdevanla
preamble640.0Yet another prelude. (library, mit, prelude, program)markfine
precursor90.0Prelude replacement (library, mit, prelude)oisdk
prefork30.0A library for building a prefork-style server quickly (library, mit, system)ikehara, junjihashimoto
pregame240.0Prelude for applications (library, mit, prelude)jxv
prelude-prime (deprecated)50.0A slightly better (but conservative) Prelude (deprecated, library, mit, prelude)RomanCheplyaka
preprocessor40.0Remove cpp annotations to get the source ready for static analysis. (cpp, library, mit, source-code-analysis)meditans
pretty-show22692.0Tools for working with derived `Show` instances and generic inspection of values. (library, mit, program, text)IavorDiatchki
primesieve180.0FFI bindings for the primesieve library. (algorithms, foreign, library, math, mit, number-theory, program)sighingnow
private-hackage-uploader402.0Upload a package to the public or private hackage, building its docs (library, mit, system)ChrisDornan
proc-net160.0Parse /proc/net/ tcp,tcp6,udp,udp6 (library, mit, network)implementation
process-extras12780.0Process extras (library, mit, system)DavidFox, DavidLazar
process-listlike (deprecated in favor of process-extras)1980.0Process extras (deprecated, library, mit, system)DavidFox
proctest80.0An IO library for testing interactive command line programs (library, mit, program, testing)NiklasHambuechen
producer420.0Simple streaming datatype (education, library, mit)etorreborre
projectile170.0Go to (library, mit, todo)RomanGonzalez
projectroot130.0Bindings to the projectroot C logic (library, mit, system)yamadapc
prompt110.0Monad (and transformer) for deferred-effect pure prompt-response queries (control, library, mit)jle
protobuf-simple160.0Simple Protocol Buffers library (proto2) (data, library, mit, program)mrijkeboer
protolude1512.25A small prelude. (library, mit, prelude)sdiehl
psc-ide (deprecated in favor of purescript)62.0Language support for the PureScript programming language (deprecated, development, library, mit, program, purescript)kritzcreek
psi120.0Yet another custom Prelude. (library, mit, prelude)fractalcat
psql-helpers90.0A small collection of helper functions to generate postgresql queries (library, mit, web)AlexanderThiemann
publicsuffix520.0The publicsuffix list exposed as proper Haskell types (benchmark, data, library, mit)wereHamster
pubnub60.0PubNub Haskell SDK (api, cloud, library, mit, program)tsloughter
pugixml140.0pugixml binding. (library, mit, text, xml)NeilMitchell, HirotomoMoriwaki
pulse80.0Synchronize actions to a time pulse (concurrency, library, mit)AlexanderThiemann
punkt90.0Multilingual unsupervised sentence tokenization with Punkt. (library, mit, natural-language-processing, text)bryant
purescript-bundle-fast100.0A fast alternative to Purescript's `psc-bundle` to be used during development (development, mit, program)BitConnor
push-notify50.0A server-side library for sending push notifications. (cloud, library, mit, mobile, network)MarcosPividori
push-notify-ccs30.0A server-side library for sending/receiving push notifications through CCS (Google Cloud Messaging). (cloud, library, mit, mobile, network)MarcosPividori
push-notify-general60.0A general library for sending/receiving push notif. through dif. services. (cloud, library, mit, mobile, network)MarcosPividori
pushbullet-types220.0Datatypes used by the Pushbullet APIs (library, mit, web)tsani
pusher-haskell30.0A client written in Haskell (library, mit, web)sidraval
pusher-http-haskell462.0Haskell client library for the Pusher HTTP API (library, mit, network)willsewell
pusher-ws170.0Implementation of the Pusher WebSocket protocol (library, mit, network)barrucadu
puzzle-draw120.0Creating graphics for pencil puzzles. (graphics, library, mit, program)vollmert
puzzle-draw-cmdline (deprecated in favor of puzzle-draw)70.0Creating graphics for pencil puzzles, command line tools. (deprecated, graphics, mit, program)vollmert
pvss8410.0Public Verifiable Secret Sharing (crypto, mit, program)VincentHanquez
pyffi30.0Call python inline from haskell (language, library, mit)russell91
pyfi50.0Call python inline from haskell (language, library, mit)russell91
quadratic-irrational120.0An implementation of quadratic irrationals (algorithms, data, library, math, mit)ion
quantum-random90.0Retrieve, store and manage real quantum random data. (library, mit, program, scientific)Cliff_Harvey
questioner70.0A package for prompting values from the command-line. (library, mit, system)yamadapc
quick-schema20.0Slimmed down json schema language and validator (data, json, library, mit)benweitzman
quickcheck-io45090.0Use HUnit assertions as QuickCheck properties (library, mit, testing)SimonHengel, qoelet
quickcheck-rematch20.0QuickCheck support for rematch (library, mit, testing)TomCrayford
quickcheck-report20.0Customizable reports for quickcheck properties (library, mit, testing)aminb, SimonHudon
quickcheck-special140.0Edge cases and special values for QuickCheck Arbitrary instances (library, mit, testing)minad
quickcheck-text9310.0Alternative arbitrary instance for Text (library, mit, text)fractalcat
quickcheck-webdriver90.0Utilities for using WebDriver with QuickCheck (library, mit, testing)christianpbrink
quiver-binary70.0Binary serialisation support for Quivers (control, library, mit)IvanMiljenovic
quiver-groups50.0Group and chunk values within a Quiver (control, library, mit)IvanMiljenovic
quiver-instances140.0Extra instances for Quiver (control, library, mit)IvanMiljenovic
quiver-interleave90.0Interleave values from multiple Quivers (control, library, mit)IvanMiljenovic
quiver-sort80.0Sort the values in a quiver (control, library, mit)IvanMiljenovic
raft110.0Miscellaneous Haskell utilities for data structures and data manipulation. (data, library, mit)BrianBush
rail-compiler-editor30.0Compiler and editor for the esolang rail. (language, library, mit, program)bubuiic
rakuten300.0The Rakuten API in Haskell (library, mit, web)
raml30.0RESTful API Modeling Language (RAML) library for Haskell (library, mit, web)fnoble
ramus140.0Elm signal system for Haskell (benchmark, library, mit, other)NickSeagull
random-bytestring270.0Efficient generation of random bytestrings (library, mit, system)larsk
random-hypergeometric30.0Random variate generation from hypergeometric distributions (library, math, mit)srijs
random-variates182.0"Uniform RNG => Non-Uniform RNGs" (library, mit, program, statistics)kpratt
range100.0This has a bunch of code for specifying and managing ranges in your code. (data, library, mit)RobertMassaioli, srijs
range-set-list270.0Memory efficient sets with ranges of elements. (data, library, mit)phadej
rasa-ext-bufs40.0Rasa Ext for useful buffer utilities (extension, library, mit)ChrisPenner
rascal70.0A command-line client for Reddit (library, mit, program, web)soli
ratel470.0Notify Honeybadger about exceptions. (exceptions, library, mit)fozworth
ratel-wai220.0Notify Honeybadger about exceptions via a WAI middleware. (exceptions, library, mit)fozworth
rattletrap780.0Parse and generate Rocket League replays. (game, library, mit, program)fozworth
raven-haskell120.0Haskell client for Sentry logging service. (library, logging, mit)AlexanderBondarenko
raven-haskell-scotty80.0Sentry http interface for Scotty web server. (library, mit, web)AlexanderBondarenko
raz50.0Random Access Zippers (algorithms, benchmark, library, mit)lyxia
rdf180.0Representation and Incremental Processing of RDF Data (benchmark, data, library, mit)TravisWhitaker
rdioh80.0A Haskell wrapper for Rdio's API. (api, library, mit, network, program, web)AdityaBhargava
re280.0Bindings to the re2 regular expression library (library, mit, regex)JohnMillikin
react-haskell90.0Haskell React bindings (library, mit, web)joelb
reactive-io (deprecated)50.0IO-oriented FRP library (control, deprecated, library, mit)RomanCheplyaka
read-editor102.0Opens a temporary file on the system's EDITOR and returns the resulting edits (library, mit, system)yamadapc
read-io50.0Read IO library (library, mit, system)zaidan
readcsv150.0Lightweight CSV parser/emitter based on ReadP (library, mit, web)gtsteel
readshp50.0Code for reading ESRI Shapefiles. (geometry, library, mit)Samvh
reasonable-lens91.25Lens implementation. It is more small but adequately. (control, library, mit)outoftune
reasonable-operational80.0Just size Operational Monad implementation. (control, library, mit)outoftune
rebase770.0A more progressive alternative to the "base" package (library, mit, unclassified)NikitaVolkov
rebindable110.0A library to facilitate rebinding of Haskell syntax (library, mit, syntax)sleexyz
record300.0Anonymous records (control, data-structures, library, mit, records)NikitaVolkov
record-aeson40.0Instances of "aeson" classes for the "record" types (data, json, library, mit, records)NikitaVolkov
record-preprocessor100.0Compiler preprocessor introducing a syntactic extension for anonymous records (benchmark, compiler, library, mit, preprocessor, program, records)NikitaVolkov
record-syntax50.0A library for parsing and processing the Haskell syntax sprinkled with anonymous records (benchmark, library, mit, parser, preprocessor, records, syntax)NikitaVolkov
records-th30.0Template Haskell declarations for the records package (data, library, mit)SamAnklesaria
redis360.0A driver for Redis key-value database (database, library, mit)AlexanderBogdanov, GaneshSittampalam
redis-hs180.0A simple Redis library for Haskell (database, library, mit)WillLangstroth
redis-job-queue70.0Simple priority job queue backed by Redis. (client, library, mit)TeroLaitinen
reedsolomon150.0Reed-Solomon Erasure Coding in Haskell (benchmark, data, library, mit)NicolasTrangez
refcount60.0Container with element counts (data, library, mit)BenFoppa
reference510.0A class for references in Haskell (control, data, library, mit)MaciejPiechotka
refh30.0A command-line tool for pasting to (mit, program, unclassified)AnthonyGrimes
refined162.0Refinement types with static and runtime checking (data, library, mit)NikitaVolkov
reflex-sdl270.0SDL2 and reflex FRP (game, library, mit, program)SchellScivally
refty160.0Formatted JSON generator for API server inspired by normalizr. (library, mit, web)oreshinya
regex-applicative2702.25Regex-based parsing with applicative interface (library, mit, text)RomanCheplyaka
rei272.0Process lists easily (data, mit, program)kerkomen
reified-records70.0Reify records to Maps and back again (generics, library, mit)jozefg
reinterpret-cast430.0Memory reinterpretation casts for Float/Double and Word32/Word64 (benchmark, data, library, mit)NiklasHambuechen
relapse190.0Sensible RLP encoding (data, library, mit)iostat
rematch130.0A simple api for matchers (control, library, mit)TomCrayford
rematch-text80.0`rematch` matchers for Data.Text (control, library, mit)TomCrayford
remotion (deprecated)20.0A library for client-server applications based on custom protocols (deprecated, library, mit, network, protocol, service)NikitaVolkov
renderable130.0An API for managing renderable resources. (graphics, library, mit)SchellScivally
repl60.0IRC friendly REPL library. (development, library, mit)MikeLedger
repline242.0Haskeline wrapper for GHCi-like REPL interfaces. (library, mit, program, user-interfaces)sdiehl
repr-tree-syb100.0Tree representation and pretty-printing of data structures based on SYB (debug, library, mit, pretty-printer, text, tree)NikitaVolkov
request-monad70.0A transformer for generic requests (control, library, mit)nahiluhmot
rerebase280.0Reexports from "base" with a bunch of other standard libraries (library, mit, unclassified)NikitaVolkov
reroute540.0abstract implementation of typed and untyped web routing (benchmark, library, mit, web)AlexanderThiemann
reserve60.0Reserve reloads web applications (mit, program, web)SimonHengel
resource-embed50.0Embed data files via C and FFI. (development, mit, program)TobiasDammers
resource-pool-monad50.0A monadic interface for resource-pool (control, library, mit)srijs
restyle30.0Convert between camel case and separated words style. (development, library, mit, program)DanielFischer
result180.0Encode success or at least one error (data, library, mit)srijs
rethinkdb-client-driver620.0Client driver for RethinkDB (database, library, mit)wereHamster
rethinkdb-model60.0Useful tools for modeling data with rethinkdb (database, library, mit)seanhess
richreports60.0Integrated pretty-printing and error/static analysis reporting. (library, mit, text)AndreiLapets
riemann130.0A Riemann client for Haskell (library, mit, network, program)JosephAbrahamson, telser, abailly
riff90.0RIFF parser for Haskell (data, library, mit, program)RobertMassaioli
rncryptor100.0Haskell implementation of the RNCryptor file format (benchmark, library, mit, network, program)AlfredoDiNapoli
rollbar352.0error tracking through (library, logging, mit)GregWeber, SeanLeather, azara
roundRobin140.0A simple round-robin data type (concurrency, library, mit)winterland
rspp40.0A Rational Street Performer Protocol solver (algorithms, library, mit)AlexChapman
rtorrent-rpc70.0A library for communicating with RTorrent over its XML-RPC interface. (library, mit, network)KaiLindholm
ruby-marshal140.0Parse a subset of Ruby objects serialised with Marshal.dump. (data, library, mit)filib
ruby-qq40.0rubyish quasiquoters (library, mit, system)JoelTaylor
runmany140.0Run multiple commands, interleaving output and errors (mit, program, system)JohnWiegley
s-expression100.0simple general-purpose s-expressions (data, library, mit, program)sboo
safe-exceptions11442.0Safe, consistent, and easy exception handling (control, library, mit)FrancescoMazzoli, MichaelSnoyman
safeio250.0Write output to disk atomically (io, library, mit)luispedro
safepath30.0Safe Paths in Haskell (library, mit, system)Norfair
sajson230.0Fast JSON parsing powered by Chad Austin's sajson library (json, library, mit, program, text, web)
saltine620.0Cryptography that's easy to digest (NaCl/libsodium bindings). (cryptography, library, mit)JosephAbrahamson, amx
saltine-quickcheck20.0Quickcheck implementations for some NaCl data (cryptography, library, mit)tsuraan
salve852.0Semantic version numbers and constraints. (distribution, library, mit)fozworth
sampling150.0Sample values from collections. (benchmark, library, math, mit)JaredTobin
samtools410.0Binding to the C samtools library (bioinformatics, library, mit)NicholasIngolia
samtools-conduit70.0Conduit interface to SAM/BAM format files through samtools (bioinformatics, library, mit, program)NicholasIngolia
samtools-enumerator90.0Enumerator interface to SamTools library (bioinformatics, library, mit)NicholasIngolia
samtools-iteratee70.0Iteratee interface to SamTools library (bioinformatics, library, mit)NicholasIngolia
sandman120.0Manages Cabal sandboxes to avoid rebuilding packages. (development, mit, program)abhinav
say1040.0Initial project template from stack (benchmark, library, mit, text)MichaelSnoyman
scalendar601.75A library for handling calendars and resource availability over time. (calendar, library, mit, time)stackbuilders, sestrella, sebasHack
sci-ratio130.0Rational numbers in scientific notation. (library, mit, text)Rufflewind
scotty-blaze (deprecated)60.0blaze-html integration for Scotty (deprecated, library, mit, web)WilliamCasarin
scotty-fay60.0Fay integration for Scotty. (development, fay, library, mit, web)hdgarrood
scotty-params-parser110.0HTTP-request's query parameters parser abstraction for "scotty" (library, mit, parser, web)NikitaVolkov
scotty-view30.0 (library, mit, program, web)Philemon
sdf2p1-parser70.0A parser for SDF version 2.1 using Parsec (library, mit, text)kojung
sdl2-cairo300.0Render with Cairo on SDL textures. (graphics, library, mit)apirogov
sdl2-cairo-image50.0An image loading and rendering library for sdl2 / sdl2-cairo (graphics, library, mit)jaiyalas
sdl2-gfx60.0Bindings to SDL2_gfx. (foreign, graphics, library, mit)SinisaBidin
sdl2-image240.0Bindings to SDL2_image. (foreign, graphics, image, library, mit)SinisaBidin, cailei, ccll
secureUDP130.0Setups secure (unsorted) UDP packet transfer. (library, mit, network)autopawn
selda790.0Type-safe, high-level EDSL for interacting with relational databases. (database, library, mit)AntonEkblad
selda-postgresql360.0PostgreSQL backend for the Selda database EDSL. (database, library, mit)AntonEkblad
selda-sqlite240.0SQLite backend for the Selda database EDSL. (database, library, mit)AntonEkblad
selenium-server20.0Run the selenium standalone server for usage with webdriver (library, mit, testing)JoelTaylor
selfrestart50.0Restarts the current executable (on binary change) (library, mit, unclassified)NiklasHambuechen, PatrickChilton
semi-iso80.0Weakened partial isomorphisms, reversible computations. (control, data, library, mit)pawel834
semiring-num1970.0Basic semiring class and instances (data, library, mit)oisdk
semver-range100.0An implementation of semver and semantic version ranges. (library, mit, unclassified)thinkpad20
sendgrid-haskell60.0Sengrid API (library, mit, web)owainlewis
sensei620.0Automatically run Hspec tests on file modifications (development, mit, program)SimonHengel
sensenet30.0Distributed sensor network for the raspberry pi (mit, program, unclassified)rossdylan
seqloc200.0Handle sequence locations for bioinformatics (bioinformatics, library, mit)NicholasIngolia
seqloc-datafiles110.0Read and write BED and GTF format genome annotations (bioinformatics, library, mit, program)NicholasIngolia
serf50.0Interact with Serf via Haskell. (library, mit, system)IanDuncan
serial-test-generators80.0Test your 'Aeson' 'Serialize' and 'Binary' instances for stability over time (library, mit, test)scottmurphy09
serialize-instances120.0Instances for Serialize of cereal (data, library, mit)aminb, SimonHudon
serokell-util8732.5General-purpose functions by Serokell (library, mit, utils)Artyom, jagajaga, gromak, volhovm, shersh
servant-aeson-specs150.0generic tests for aeson serialization in servant (library, mit, web)SoenkeHahn, mchaver
servant-generic140.0Specify Servant APIs with records. (library, mit, web)PatrickChilton
servant-github-webhook230.0Servant combinators to facilitate writing GitHub webhooks. (library, mit, web)tsani
servant-matrix-param80.0Matrix parameter combinator for servant (library, mit, web)SoenkeHahn, jkarni
servant-options280.0Provide responses to OPTIONS requests for Servant applications. (library, mit, web)LyndonMaydwell
servant-pandoc222.0Use Pandoc to render servant API documentation (library, mit, web)IvanMiljenovic, MatthiasFischmann, mpickering
servant-pushbullet-client240.0Bindings to the Pushbullet API using servant-client (library, mit, web)tsani
serversession80.0Secure, modular server-side sessions. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
serversession-backend-acid-state160.0Storage backend for serversession using acid-state. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
serversession-backend-persistent180.0Storage backend for serversession using persistent and an RDBMS. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
serversession-backend-redis160.0Storage backend for serversession using Redis. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
serversession-frontend-snap70.0Snap bindings for serversession. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
serversession-frontend-wai40.0wai-session bindings for serversession. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
serversession-frontend-yesod40.0Yesod bindings for serversession. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman, MichaelXavier
servius410.0Warp web server with template rendering (mit, program, web)MichaelSnoyman
setenv51420.0A cross-platform library for setting environment variables (library, mit, system)SimonHengel
sets190.0Ducktyped set interface for Haskell containers. (benchmark, data, library, math, mit)athanclark
shadowsocks110.0A fast SOCKS5 proxy that help you get through firewalls (mit, program, web)rnons
shake-path110.0path alternatives to shake functions (cssyd, library, mit)Norfair
shakers840.0Shake helpers. (development, library, mit, program)markfine
shakespeare7760.0A toolkit for making compile-time interpolated templates (library, mit, web, yesod)GregWeber, MichaelSnoyman
shakespeare-css (deprecated in favor of shakespeare)480.0Stick your haskell variables into css at compile time. (deprecated) (deprecated, library, mit, web, yesod)GregWeber, MichaelSnoyman
shakespeare-i18n (deprecated in favor of shakespeare)240.0A type-based approach to internationalization. (deprecated) (deprecated, library, mit, web, yesod)GregWeber, MichaelSnoyman
shakespeare-js (deprecated in favor of shakespeare)550.0Stick your haskell variables into javascript/coffeescript at compile time. (deprecated) (deprecated, library, mit, web, yesod)GregWeber, MichaelSnoyman
shakespeare-text (deprecated in favor of shakespeare)330.0Interpolation with quasi-quotation: put variables strings (deprecated) (deprecated, library, mit, web, yesod)GregWeber, MichaelSnoyman
shared-memory60.0POSIX shared memory (library, mit, unclassified)NiklasHambuechen
sharedio50.0Bundles shared calls to IO functions to perform them only once (concurrency, library, mit)JohnLato, NiklasHambuechen
shift170.0A tool to quickly switch between directories (library, mit, program, tools)vmchale
shikensu220.0Run a sequence of functions on in-memory representations of files (filesystem, library, mit)icidasset
shine132.25Declarative graphics for the browser using GHCJS (graphics, javascript, library, mit, web)fgaz
shine-varying32.0FRP interface for shine using the varying package (frp, graphics, javascript, library, mit, web)fgaz
signal202.0Multiplatform signal support for Haskell (library, mit, program, system)danilo2, PiotrMlodawski
simple-logger160.0A very simple but efficient logging framework (library, logging, mit)AlexanderThiemann
simple-logging100.0Logging effect to plug into the simple-effects framework (library, logging, mit)darwin226
simple-nix50.0Simple parsing/pretty printing for Nix expressions (library, mit, nix)thinkpad20
simple-tabular30.0Simple tabular-text formatter (library, mit, text)BartonMassey
sink (deprecated)50.0An alternative to lazy I/O that doesn't conflate execution with evaluation (control, data, deprecated, library, mit, system)JakeMcArthur
sjsp60.0Simple JavaScript Profiler (compiler, mit, program)itchyny
skeleton50.0a tool to access the OSX keychain (mit, program, utility)rnhmjoj
skeletons50.0Manage project skeletons (development, mit, program)WilliamCasarin
skemmtun30.0A client. (mit, program, web)nyorem
skip-list160.0An implementation of pure skip lists (benchmark, data, library, mit)gmalecha
skulk120.0Eclectic collection of utility functions (control, library, mit)geekyfox
skype4hs70.0Skype Desktop API binding for Haskell (library, mit, network)emonkak
slack30.0Haskell API for interacting with Slack (library, mit, network)dhrosa
slack-api322.5Bindings to the Slack RTM API. (library, mit, program, web)mitchellwrosen, mpickering, asayers
slack-notify-haskell90.0Slack notifier for Haskell project. (library, mit, program, web)tattsun
slack-web160.0Bindings for the Slack web API (library, mit, web)EmmanuelTouzery, jpvillaisaza
slave-thread442.0A principal solution to ghost threads and silent exceptions (concurrency, concurrent, error-handling, exceptions, failure, library, mit)NikitaVolkov
slim100.0Functional reactive user interface programming (gui, library, mit)jvdp
slot-lambda80.0Write lambdas without naming the parameters. (language, library, mit)ducis
snake40.0A basic console snake game. (game, mit, program)alaminium
snap-accept170.0Accept header branching for the Snap web framework (library, mit, web)TimothyJones
snap-routes30.0Typesafe URLs for Snap applications. (library, mit, network)AnupamJain
snaplet-css-min50.0A Snaplet for CSS minification (library, mit, web)TimothyJones
snaplet-hasql50.0A Hasql snaplet (library, mit, web)MikeLedger
snaplet-purescript130.0Automatic (re)compilation of purescript projects (library, mit, web)AlfredoDiNapoli
snaplet-rest20.0REST resources for the Snap web framework (library, mit, web)TimothyJones
snaplet-riak40.0A Snaplet for the Riak database (database, library, mit)PaulWilson, lambda_foo
snappy-conduit20.0Conduit bindings for Snappy (see snappy package) (codec, library, mit)toru_tomita
snipcheck180.0Markdown tester (development, library, mit)nmattia
snowtify200.0snowtify send your result of `stack build` (`stack test`) to notify-daemon :dog2: (mit, program, simple)aiya000
soap461.75SOAP client tools (library, mit, web)AlexanderBondarenko
soap-openssl50.0TLS-enabled SOAP transport (using openssl bindings) (library, mit, web)AlexanderBondarenko
soap-tls70.0TLS-enabled SOAP transport (using tls package) (library, mit, web)AlexanderBondarenko
socket372.0An extensible socket library. (library, mit, network, system)LarsPetersen
socket-sctp80.0STCP socket extensions library. (library, mit, network, socket, system)LarsPetersen, shlevy
socket-unix170.0Unix domain sockets (library, mit, network, system)VyacheslavHashov
socketed80.0simpe tool to serve piped data over http and websocket (library, mit, program, web)sencenan
socketio70.0Socket.IO server (library, mit, web)TingYenLai
socketson60.0A small websocket backend provider. (library, mit, network, program)apho
solga120.0Simple typesafe web routing (library, mit, web)PatrickChilton
solga-swagger100.0Swagger generation for Solga (library, mit, web)PatrickChilton
solr110.0A minimal Solr client library (library, mit, unclassified)NikitaVolkov
sorted30.0Efficient, type-safe sorted sequences (data, library, mit)JosephAbrahamson
soyuz60.0DCPU-16 architecture utilities for Notch's 0x10c game. (compilers-interpreters, library, mit, program)AlexKropivny
speedy-slice190.0Speedy slice sampling. (library, math, mit)JaredTobin
sphinxesc140.0Transform queries for sphinx input (library, mit, program, text)mackeyrms
spice170.0An FRP-based game engine written in Haskell. (frp, library, mit)Crockeo
spir-v60.0Some utilities for reading and writing SPIR-V files (language, library, mit)jophish
split-channel210.0Control.Concurrent.Chan split into sending and receiving halves. (concurrency, library, mit)LeonSmith
splitter30.0Use numerical ranges to split out certain lines from a file. (mit, program, text)RobertMassaioli
sproxy (deprecated in favor of sproxy2)150.0HTTP proxy for authenticating users via OAuth2 (deprecated, mit, program, web)ip1981
sproxy-web130.0Web interface to sproxy database (mit, program, web)ip1981
sproxy2300.0Secure HTTP proxy for authenticating users via OAuth2 (databases, mit, program, web)ip1981
spsa90.0Simultaneous Perturbation Stochastic Approximation Optimization Algorithm (benchmark, library, math, mit, optimization)yanatan16
sql-simple50.0common middle-level sql client. (database, library, mit)HirotomoMoriwaki
sql-simple-mysql40.0mysql backend for sql-simple (database, library, mit)HirotomoMoriwaki
sql-simple-pool20.0conection pool for sql-simple (database, library, mit)HirotomoMoriwaki
sql-simple-postgresql50.0postgresql backend for sql-simple (database, library, mit)HirotomoMoriwaki
sql-simple-sqlite60.0sqlite backend for sql-simple (database, library, mit)HirotomoMoriwaki
sshd-lint20.0Check sshd configuration for adherence to best practices (mit, program, system)jsl, stackbuilders
ssv120.0Comma-separated-value (CSV) read, show and write routines (library, mit, program, text)BartonMassey
stable-heap30.0Purely functional stable heaps (fair priority queues) (benchmark, data-structures, library, mit)JakeMcArthur
stable-memo220.0Memoization based on argument identity (data, library, mit)JakeMcArthur
stack-bump60.0Dead simple version bumping for hpack packages (development, mit, program)yamadapc
stack-run372.0An equivalent to cabal run for stack. (development, mit, program)yamadapc
stack-run-auto140.0Initial project template from stack (development, library, mit, program)yamadapc
stack-type110.0The basic stack type (library, mit, simple)aiya000
stack2nix110.0Convert stack.yaml files into Nix build instructions. (distribution, library, mit, nix, program)jmitchell_iohk
stackage290.0Dummy package forcing installation of other Stackage packages (development, library, mit)ChrisDone, DanBurton, MichaelSnoyman
stackage-build-plan (deprecated in favor of stackage-curator)60.0Calculate and print (in different formats) Stackage build plans (deprecated, distribution, library, mit, program)MichaelSnoyman
stackage-cabal (deprecated in favor of stack)60.0A CLI executable for cabal-based stackage commands (deprecated, development, library, mit, program)DanBurton
stackage-cli (deprecated in favor of stack)120.0A CLI library for stackage commands (deprecated, development, library, mit, program)ChrisDone, DanBurton, MichaelSnoyman
stackage-curator1100.0Tools for curating Stackage bundles (distribution, library, mit, program)MichaelSnoyman
stackage-install180.0Secure download of packages for cabal-install (distribution, library, mit, program)MichaelSnoyman
stackage-metadata70.0Grab current metadata for all packages (distribution, library, mit, program)MichaelSnoyman
stackage-query111.75Stackage package query (distribution, mit, program)JensPetersen
stackage-sandbox (deprecated in favor of stack)100.0Work with shared stackage sandboxes (deprecated, development, library, mit, program)ChrisDone, DanBurton, MichaelSnoyman, borsboom
stackage-setup (deprecated in favor of stack)70.0An executable for downloading a Haskell setup (deprecated, development, library, mit, program)DanBurton
stackage-types (deprecated in favor of stackage-curator)160.0Shared data types between various Stackage packages (data, deprecated, library, mit)MichaelSnoyman
stackage-update180.0Update your package index incrementally (requires git) (distribution, library, mit, program)ChrisDone, MichaelSnoyman
stackage-upload (deprecated in favor of stack)170.0A more secure version of cabal upload which uses HTTPS (deprecated, distribution, library, mit, program)MichaelSnoyman, lehins
standalone-derive-topdown32.0This package will derive class instance along the data type declaration tree. (development, library, mit)songzh
standalone-haddock180.0Generate standalone haddock documentation for a set of packages (distribution, mit, program)KarlVoelker, RomanCheplyaka
state-codes500.0ISO 3166-2:US state codes and i18n names (data, library, mit)acamino
statistics-hypergeometric-genvar20.0Random variate generation from hypergeometric distributions (library, math, mit, statistics)srijs
statistics-linreg530.0Linear regression between two samples, based on the 'statistics' package. (library, math, mit, statistics)AlpMestanogullari
statsd-client170.0Statsd UDP client (library, mit, network)keith_duncan, tclem
statsd-datadog60.0DataDog-flavored StatsD client. (library, mit, network)AlexanderBondarenko
steambrowser20.0List and launch steam games from the cli (game, mit, program)hunteriam
stemmer-german571.5Extract the stem of a German inflected word form. (library, mit, nlp)implementation
stm-containers9320.0Containers for STM (benchmark, concurrency, data-structures, library, mit, stm)NikitaVolkov
store2590.0Fast binary serialization (benchmark, data, library, mit, serialization)MichaelSloan, MichaelSnoyman, borsboom, fpcomplete, philipp
store-core1850.0Fast and lightweight binary serialization (data, library, mit, serialization)MichaelSloan, MichaelSnoyman, borsboom, fpcomplete, philipp
str30.0A type class to abstract between many different string types. (library, mit, text)thinkpad20
stratosphere862.0EDSL for AWS CloudFormation (aws, cloud, library, mit)jdreaver
stream70.0Initial project template from stack (benchmark, data, library, mit)MichaelSnoyman
streaming-cassava70.0Cassava support for the streaming ecosystem (data, library, mit, streaming)IvanMiljenovic
streaming-commons79292.0Common lower-level functions needed by various streaming data libraries (benchmark, data, library, mit)MichaelSnoyman
streaming-concurrency220.0Concurrency support for the streaming ecosystem (data, library, mit, streaming)IvanMiljenovic
streaming-conduit170.0Bidirectional support between the streaming and conduit libraries (data, library, mit, streaming)IvanMiljenovic
streaming-wai130.0Streaming Wai utilities (library, mit, web)WilliamCasarin
streaming-with180.0with/bracket-style idioms for use with streaming (data, library, mit, streaming)IvanMiljenovic
strelka90.0A simple, flexible and composable web-router (library, mit, web)NikitaVolkov
strelka-core130.0Core components of "strelka" (library, mit, unclassified)NikitaVolkov
strelka-wai160.0WAI compatibility layer for "strelka" (library, mit, unclassified)NikitaVolkov
strict-writer (deprecated in favor of writer-cps-mtl)170.0A stricter writer, which uses StateT in order to avoid space leaks. (control, deprecated, library, mit)oisdk
string-transform250.0simple and easy haskell string transform wrapper (library, mit, text)ncaq
stringable (deprecated)1680.0A Stringable type class, in the spirit of Foldable and Traversable (bytestring, data, deprecated, library, mit, text)JohnWiegley, KetilMalde
stringbuilder12950.0A writer monad for multi-line string literals (library, mit, testing)SimonHengel
stringlike30.0Transformations to several string-like types (library, mit, text)FedorGogolev
strings200.0Functions for working with strings, including Text, ByteString, etc. (library, mit, string, text, utility)JulianFleischer
stripe-core570.0Stripe API for Haskell - Pure Core (library, mit, web)DavidJohnson
stripe-haskell702.25Stripe API for Haskell (library, mit, web)DavidJohnson
stripe-http-streams510.0Stripe API for Haskell - http-streams backend (library, mit, web)DavidJohnson
stripe-tests530.0Tests for Stripe API bindings for Haskell (library, mit, web)DavidJohnson
strive830.0A client for the Strava V3 API. (api, library, mit)taylorfausak, fozworth
stt130.0A monad transformer version of the ST monad (control, library, mit)mckeankylej
stunclient100.0RFC 5389: Session Traversal Utilities for NAT (STUN) client (library, mit, network)PhilippBalzarek
stutter130.0(Stutter Text|String)-Utterer (library, mit, program, tools)nmattia
subnet80.0subnetting calculator (library, mit, network)gcganley
success722.0A version of Either specialised for encoding of success or failure (data, failure, library, mit)NikitaVolkov
successors120.0An applicative functor to manage successors (control, library, mit)JoachimBreitner
sum-type-boilerplate170.0Library for reducing the boilerplate involved with sum types (library, mit, th, types)jdreaver
super-user-spark182.0Configure your dotfile deployment with a DSL. (library, mit, program, system)Norfair
supplemented90.0Early termination for monads (library, mit, parsing)NikitaVolkov
swagger-petstore1130.0Auto-generated swagger-petstore API Client (library, mit, web)jonschoning
syfco110.0Synthesis Format Conversion Tool / Library (library, mit, program, syntcomp)kleinreact
symengine60.0SymEngine symbolic mathematics engine for Haskell (ffi, library, math, mit, symbolic-computation)bollu
symengine-hs70.0SymEngine symbolic mathematics engine for Haskell (ffi, library, math, mit, program, symbolic-computation)bollu
sync-mht210.0Fast incremental file transfer using Merkle-Hash-Trees (benchmark, library, mit, program, utility)emink
syntax80.0Reversible parsing and pretty-printing. (data, library, mit)pawel834
syntax-attoparsec60.0Syntax instances for Attoparsec. (data, library, mit)pawel834
syntax-example50.0Example application using syntax, a library for abstract syntax descriptions. (data, mit, program)pawel834
syntax-example-json30.0Example JSON parser/pretty-printer. (data, mit, program)pawel834
syntax-pretty (deprecated in favor of syntax-printer)40.0Syntax instance for pretty, the pretty printing library. (data, deprecated, library, mit)pawel834
syntax-printer20.0Text and ByteString printers for 'syntax'. (data, library, mit)pawel834
syntaxnet-haskell80.0Working with Google's SyntaxNet output files - CoNLL, Tree (library, mit, nlp)MichalGajda, sigrlami
sys-auth-smbclient60.0Auth with smbclient command (library, mit, system)KazuoKoga
system-argv0250.0Get argv[0] as a FilePath. (library, mit, system)JohnMillikin
system-canonicalpath100.0Abstract data type for canonical paths with some utilities (library, mit, system)d12frosted
system-extra140.0A bunch of system utilities used by other projects (library, mit, system)abailly
system-fileio (deprecated in favor of directory)3480.0Consistent filesystem interaction across GHC versions (deprecated) (deprecated, library, mit, system)JohnMillikin, MichaelSnoyman
system-filepath (deprecated in favor of filepath)19000.0High-level, byte-based file and directory path manipulations (deprecated) (deprecated, library, mit, system)JohnMillikin, MichaelSnoyman
system-info232.25Get information about CPUs, memory, etc. (library, mit, system)dtaskoff
system-test110.0Runs system tests of applications. (library, mit, program, testing)ExcaliburZero
table40.0Simple tool to generate tables from DSV input (mit, program, text)DanielChoi
table-tennis60.0A table tennis game tracking engine (game, library, mit)thelollies
tagged-binary200.0Provides tools for serializing data tagged with type information. (data, library, mit, serialization)jle
tagged-timers30.0Simple wrappers for timing IO actions (single-threaded) (library, mit, system)ranjitjhala
tailfile-hinotify170.0Tail files in Unix, using hinotify. (library, mit, system)DanielDiazCarrete
takahashi100.0create slide for presentation. (control, library, mit)outoftune
tal80.0An implementation of Typed Assembly Language (Morrisett, Walker, Crary, Glew) (language, library, mit)sweirich
tar-conduit140.0Parse tar files using conduit for streaming (data-conduit, library, mit)MichaelSnoyman, SimonMarechal
target70.0Generate test-suites from refinement types. (benchmark, library, mit, program, testing)EricSeidel
taskpool (deprecated in favor of async-pool)110.0Manage pools of possibly interdependent tasks using STM and async (deprecated, library, mit, system)JohnWiegley
tasty28552.5Modern and extensible testing framework (library, mit, testing)EdwardKmett, OliverCharles, RomanCheplyaka, bergey
tasty-auto (deprecated in favor of tasty-discover)190.0Auto discovery for Tasty with support for ingredients and test tree generation (deprecated, library, mit, program, testing)minad
tasty-dejafu800.0Deja Fu support for the Tasty test framework. (library, mit, testing)barrucadu
tasty-discover2060.0Test discovery for the tasty framework. (library, mit, program, testing)lwm, minad
tasty-expected-failure292.0Mark tasty tests as failure expected (library, mit, testing)JoachimBreitner
tasty-fail-fast100.0Adds the ability to fail a tasty test suite on first test failure (library, mit, web)MichaelXavier
tasty-golden6091.75Golden tests support for tasty (library, mit, testing)OliverCharles, RomanCheplyaka
tasty-html170.0Render tasty output to HTML (library, mit, testing)RomanCheplyaka, jdnavarro
tasty-hunit18672.0HUnit support for the Tasty test framework. (library, mit, testing)OliverCharles, RomanCheplyaka
tasty-kat210.0Known Answer Tests (KAT) framework for tasty (library, mit, tasty-kat)VincentHanquez
tasty-quickcheck12952.0QuickCheck support for the Tasty test framework. (library, mit, testing)OliverCharles, RomanCheplyaka
tasty-silver5650.0A fancy test runner, including support for golden tests. (library, mit, testing)PhilippHausmann
tasty-smallcheck1870.0SmallCheck support for the Tasty test framework. (library, mit, testing)OliverCharles, RomanCheplyaka
tasty-stats240.0Collect statistics of your Tasty testsuite in a CSV file (library, mit, testing)minad
tasty-tap150.0TAP (Test Anything Protocol) Version 13 formatter for tasty (library, mit, testing)MichaelXavier
teardown540.0Build composable components for your application with clear teardown semantics (library, mit, system)RomanGonzalez
teeth110.0Dental data types (anatomy, library, mit)jophish
teleport80.0A tool to quickly switch between directories (library, mit, program, tools)bollu
template-haskell-compat-v020890.0A backwards compatibility layer for Template Haskell newer than 2.8 (compatibility, library, mit, templatehaskell)NikitaVolkov
template-haskell-util150.0Some utilities for template Haskell. (library, mit, template-haskell)songzh
templatepg90.0A PostgreSQL access library with compile-time SQL type inference (database, library, mit)ChrisForno
templater80.0Simple string templater (library, mit, text)geraud
term-rewriting132.0Term Rewriting Library (library, logic, mit)BertramFelgenhauer, MartinAvanzini
termplot30.0Plot time series in your terminal using commands stdout (console, mit, program)jimenezrick
test-framework-golden (deprecated in favor of tasty-golden)180.0Golden tests support for test-framework (deprecated, library, mit, testing)OliverCharles, RomanCheplyaka
test-shouldbe (deprecated in favor of hspec-expectations)50.0Catchy combinators for HUnit (deprecated, library, mit, testing)
testbench110.0Create tests and benchmarks together (library, mit, testing)IvanMiljenovic
testloop80.0Quick feedback loop for test suites (development, library, mit, testing)RomanGonzalez
text-and-plots60.0EDSL to create HTML documents with plots based on the C3.js library. (library, mit, text)andersjel
text-builder140.0An efficient strict text builder (benchmark, library, mit, text)NikitaVolkov
text-normal80.0Unicode-normalized text (data, library, mit)JoelTaylor
text-render140.0A type class for rendering objects as text, pretty-printing, etc. (library, mit, text)thinkpad20
text-stream-decode (deprecated in favor of streaming-commons)130.0Streaming decoding functions for UTF encodings. (deprecated) (benchmark, data, deprecated, library, mit, text)MichaelSnoyman
text-utils140.0Various text utilities (library, mit, web)AlexanderThiemann
textmatetags50.0A simple Haskell program to provide tags for Haskell code completion in TextMate (compilers-interpreters, mit, program)AlessandroVermeulen
textual (deprecated in favor of string-conversions, string-convert)30.0Textual type class for data that represent text (deprecated, library, mit, text)marcosdumay
th-cas110.0Compile-time CAS(Computer Algebra System) (library, math, mit, numeric)junjihashimoto
th-instance-reification70.0Fixed versions of instances reification functions (library, mit, template-haskell)NikitaVolkov
th-printf130.0Compile-time printf (library, mit, text)JoelTaylor
th-utilities9720.0Collection of useful functions for use with Template Haskell (library, mit, template-haskell)MichaelSloan
themoviedb250.0Haskell API bindings for (api, library, mit, network, program)PeterJones
thread-hierarchy1070.0Simple Haskel thread management in hierarchical manner (concurrency, library, mit)nshimaza
threads-supervisor250.0Simple, IO-based library for Erlang-style thread supervision (concurrency, library, mit, program)AlfredoDiNapoli
throwable-exceptions340.0throwable-exceptions gives the easy way to throw exceptions (exception, library, mit)aiya000
thumbnail-plus100.0Generate thumbnails easily and safely. (graphics, library, mit)FelipeLessa
tianbar540.0A desktop bar based on WebKit (library, mit, program, system)AlexeyKotlyarov
tiempo50.0Specify time intervals in different units (secs, mins, hours, etc.) (data, library, mit, time)RomanGonzalez
tightrope60.0Nice API for a Slackbot (library, mit, web)ian
time-warp92.0Distributed systems execution emulation (control, library, mit, network)jagajaga, gromak, volhovm
timecalc80.0 (console, mit, program)ChrisEidhof
timeout90.0Generalized sleep and timeout functions (concurrency, control, library, mit)FedorGogolev
timespan130.0Useful timespan datatype and functions (library, mit, web)AlexanderThiemann
timestamper90.0Read standard input and prepend each line with a timestamp (mit, program, system)kisom
tinytemplate82.0A tiny text templating library (library, mit, text)PhilFreeman, karchie
tld150.0This project separates subdomains, domains, and top-level-domains from URLs. (library, mit, network)jp_rider
tokenify40.0A regex lexer (library, mit, parser)akst
total-maps140.0Dense and sparse total maps. (containers, data, data-structures, library, mit)pawel834
touched40.0Library (and cli) to execute a procedure on file change. (library, mit, program, system)crough
trace140.0A monad transformer for tracing provenience of errors (control, library, mit)JonSterling
tracy100.0Convenience wrappers for non-intrusive debug tracing (development, library, mit)dredozubov
traildb170.0TrailDB bindings for Haskell (benchmark, database, library, mit)Adeon
transient552.5composing programs with multithreading, events and distributed computing (concurrency, control, library, mit)AlbertoCorona, geraldus
transient-universe340.0Remote execution and map-reduce: distributed computing for Transient (control, library, mit, program)AlbertoCorona, geraldus
translatable-intset30.0Integer sets with a constant time translate operation. (data-structures, library, mit)JannisHarder
translate-cli580.0Translation cli tool (cli, library, mit, program)
trasa-client110.0Type safe http requests (library, mit, web)mckeankylej
trasa-reflex60.0Reactive Type Safe Routing (library, mit, text)mckeankylej
traverse-with-class540.0Generic applicative traversals (data, library, mit)AdamBergmark, RomanCheplyaka, SjoerdVisscher
travis70.0A simple client implementation using Travis CI API. (library, mit, web)tomtau
treefold710.0Provides folds which try to combine elements in a balanced way. (data, library, mit)oisdk
tripLL30.0A very simple triple store (database, library, mit)apho
tsvsql50.0Template tsv into SQL (mit, program, text)DanielChoi
ttrie110.0Contention-free STM hash map (benchmark, concurrency, library, mit)MichaelSchroeder
tttool440.0Working with files for the Tiptoi® pen (mit, program, reverse-engineering)JoachimBreitner
tuple-morph30.0Morph between tuples, or convert them from and to HLists. (data, library, mit)pawel834
turing-machines60.0A simple simulator for Turing machines (library, math, mit)jariazavalverde
turkish-deasciifier60.0Haskell port of Deniz Yuret's Turkish deasciifier. (language, library, mit, program)cattheory
twentyseven30.0Rubik's cube solver (algorithms, library, mit, program)lyxia
twhs50.0CLI twitter client. (library, mit, program, web)ShinichiroSuzuki
twill30.0Twilio API interaction (library, mit, service)JosephAbrahamson
twitch222.0A high level file watcher DSL (library, mit, system)JonathanFischoff, AndreasSchacker
twitter-feed290.0Client for fetching Twitter timeline via Oauth (library, mit, web)jsl, stackbuilders, sestrella, mrkkrp, jmorocho
tx20.0Persistent transactions on top of STM. (database, library, mit)MichaelSchroeder
tyfam-witnesses1470.0Provide proof witnesses for closed type family evaluation (development, library, mit)GaborGreif
type-indexed-queues140.0Queues with verified and unverified versions. (benchmark, data-structures, library, mit)oisdk
type-level-kv-list100.0A module for hash map like object with type level keys. (data, library, mit)arowM
type-map100.0Type-indexed maps (data, library, mit)lyxia
type-structure60.0Type structure analysis (data, library, mit)NikitaVolkov
typed-process920.0Run external processes, with strong typing of streams (library, mit, system)MichaelSnoyman
typed-streams60.0A stream based replacement for lists (data, library, mit)clinton
typed-wire160.0Language-independent type-safe communication (library, mit, program, web)AlexanderThiemann
typelits-witnesses432.0Existential witnesses, singletons, and classes for operations on GHC TypeLits (data, library, mit)jle
types-compat80.0ghc-7.6/7.8 compatible GHC.TypeLits, Data.Typeable and Data.Proxy. (compatibility, library, mit)HirotomoMoriwaki
typescript-docs60.0A documentation generator for TypeScript Definition files (language, mit, program)PhilFreeman
uid60.0Simple unique identifier datatype, serializable and encodable as base32 (data, library, mit)PhilHargett
uniform-io100.0Uniform IO over files, network, anything. (library, mit, system)marcosdumay
union-find-array80.0union find data structure (algorithms, data, library, mit)BertramFelgenhauer, MartinAvanzini
universum9110.0Custom prelude used in Serokell (library, mit, prelude)Artyom, gromak, volhovm, shersh
unix-process-conduit (deprecated in favor of keter)140.0Run processes on Unix systems, with a conduit interface (deprecated) (deprecated, library, mit, system)MichaelSnoyman
unliftio600.0The MonadUnliftIO typeclass for unlifting monads to IO (batteries included) (control, library, mit)MichaelSnoyman
unliftio-core280.0The MonadUnliftIO typeclass for unlifting monads to IO (control, library, mit)MichaelSnoyman
unordered-containers-rematch20.0Rematch support for unordered containers (control, library, mit)TomCrayford
unordered-graphs100.0Graph library using unordered-containers (data-structures, graphs, library, mit)IvanMiljenovic
unscramble50.0Solve Boggle-like word games (mit, program, text)JoelTaylor
unsequential110.0An extension removing the sequentiality from monads (control, library, mit)NikitaVolkov
unused200.0A command line tool to identify unused code. (cli, library, mit, program)joshuaclayton
uploadcare30.0Haskell client for Uploadcare. (api, library, mit, web)DimitrySolovyov
uri-templater330.0Parsing & Quasiquoting for RFC 6570 URI Templates (library, mit, network)IanDuncan
url-decoders110.0Decoders for URL-encoding (aka Percent-encoding) (benchmark, codecs, library, mit, web)NikitaVolkov
urlpath1180.0Painfully simple URL deployment. (data, library, mit, web)athanclark
urn-random50.0A package for updatable discrete distributions (data, library, mit)AntalSpectorZabusky
users142.0A library simplifying user management for web applications (library, mit, web)AlexanderThiemann
users-persistent110.0A persistent backend for the users package (data, library, mit)AlexanderThiemann
users-postgresql-simple160.0A PostgreSQL backend for the users package (library, mit, web)AlexanderThiemann
users-test160.0Library to test backends for the users library (library, mit, web)AlexanderThiemann
utc110.0A pragmatic time and date library. (data, library, mit, parsing, time)LarsPetersen
uu-interleaved650.0Providing an interleaving combinator for use with applicative/alternative style implementations. (applicative, control, library, mit, parsing, text)DoaitseSwierstra
uu-options40.0Parse command line options using uu-interleave and uu-parsinglib (library, mit, options)DoaitseSwierstra
uu-parsinglib1280.0Fast, online, error-correcting, monadic, applicative, merging, permuting, interleaving, idiomatic parser combinators. (library, mit, parsercombinators, parsing, text)DoaitseSwierstra
uuid-le70.0Universally Unique Identifiers with little-endian-ish encoding tools (data, library, mit)StijnVanDrongelen
vado1630.0Runs commands on remote machines using ssh (development, library, mit, program)HamishMackenzie
valid-names30.0Valid operator/module characters (language, library, mit)JoelTaylor
validate-input100.0Input validation combinator library (library, mit, web)AlexanderThiemann
validity660.0Validity typeclass (library, mit, validity)Norfair
validity-aeson430.0Validity instances for aeson (library, mit, validity)Norfair
validity-bytestring450.0Validity instances for bytestring (library, mit, validity)Norfair
validity-containers460.0Validity instances for containers (library, mit, validity)Norfair
validity-path490.0Validity instances for Path (library, mit, validity)Norfair
validity-scientific450.0Validity instances for scientific (library, mit, web)Norfair
validity-text520.0Validity instances for text (library, mit, web)Norfair
validity-time470.0Validity instances for time (library, mit, validity)Norfair
validity-unordered-containers460.0Validity instances for unordered-containers (library, mit, validity)Norfair
validity-uuid430.0Validity instances for uuid (library, mit, web)Norfair
validity-vector450.0Validity instances for vector (library, mit, validity)Norfair
variables40.0Monads with variables, without deep magic (control, library, mit)alynn
varying372.0FRP through value streams and monadic splines. (benchmark, control, frp, library, mit, program)SchellScivally
vault-tool1000.0Client library for HashiCorp's Vault tool (via HTTP API) (library, mit, network)BitConnor
vault-tool-server50.0Utility library for spawning a HashiCorp Vault process (library, mit, network)BitConnor
vcf152.0A package to parse VCF files inspired in similar python libraries (bioinformatics, library, mit)juanpaucar
vector-builder2270.0Vector builder (library, mit, vector)NikitaVolkov
vector-conduit110.0Conduit utilities for vectors (data, library, mit)JaredHance
vector-space-map110.0vector-space operations for finite maps using Data.Map (library, math, mit)ChristianConkle
vector-split140.0Combinator library for splitting vectors. (data, data-structures, library, mit)fho
verbalexpressions40.0Regular expressions made easy (library, mit, text)klrr
vigilance70.0An extensible dead-man's switch system (mit, utils)MichaelXavier
vimus80.0An MPD client with vim-like key bindings (library, mit, program, sound)JoachimFasting, SimonHengel
vinyl722.0Extensible Records (benchmark, library, mit, records)AnthonyCowley, JonSterling
vinyl-json30.0Provide json instances automagically to vinyl types (library, mit, web)tbelaire
visibility100.0Simple computation of visibility polygons. (geometry, library, mit)darwin226
vorbiscomment90.0Reading of Vorbis comments from Ogg Vorbis files (library, mit, sound, text)ChrisWagner
vrpn80.0Bindings to VRPN. (library, mit, network, program)BrianBush
wai25422.5Web Application Interface. (library, mit, web)KazuYamamoto, MichaelSnoyman
wai-app-static15510.0WAI application for static serving (library, mit, program, web, yesod)MichaelSnoyman
wai-conduit670.0conduit wrappers for WAI (conduit, library, mit, web)MichaelSnoyman
wai-cors8912.0CORS for WAI (http, library, mit, network, web, yesod)JonSterling, larsk
wai-devel50.0A web server for the development of WAI compliant web applications. (library, mit, program, web)urbanslug
wai-eventsource (deprecated in favor of wai-extra)270.0WAI support for server-sent events (deprecated) (deprecated, library, mit, web)FelipeLessa, MichaelSnoyman
wai-extra23510.0Provides some basic WAI handlers and middleware. (library, mit, web)FelipeLessa, GregWeber, MichaelSnoyman
wai-frontend-monadcgi280.0Run CGI apps on WAI. (library, mit, web)MichaelSnoyman
wai-graceful40.0Graceful shutdown for WAI applications. (library, mit, network)AlexanderBondarenko
wai-handler-devel (deprecated in favor of yesod-bin)340.0WAI server that automatically reloads code after modification. (deprecated) (deprecated, library, mit, program, web)MichaelSnoyman
wai-handler-fastcgi380.0Wai handler to fastcgi (library, mit, web)MichaelSnoyman
wai-handler-launch810.0Launch a web app in the default browser. (library, mit, web)MichaelSnoyman
wai-handler-scgi (deprecated in favor of wai-extra)160.0Wai handler to SCGI (deprecated) (deprecated, library, mit, web)MichaelSnoyman
wai-handler-webkit240.0Turn WAI applications into standalone GUIs using QtWebkit. (library, mit, web)MichaelSnoyman
wai-http2-extra420.0WAI utilities for HTTP/2 (library, mit, web)KazuYamamoto
wai-middleware-auth182.0Authentication middleware that secures WAI application (library, mit, program, web)lehins
wai-middleware-consul70.0Wai Middleware for Consul (library, mit, network)MichaelSnoyman, dysinger
wai-middleware-crowd200.0Middleware and utilities for using Atlassian Crowd authentication (library, mit, program, web)MichaelSnoyman
wai-router30.0Provides basic routing on URL paths for WAI. (library, mit, web)MarekDolgos
wai-routes572.0Typesafe URLs for Wai applications. (library, mit, network)AnupamJain
wai-secure-cookies160.0 (library, mit, program, web)alaminium
wai-static-pages130.0generate static html pages from a WAI application (library, mit, web)GregWeber
wai-test (deprecated in favor of wai-extra)500.0Unit test framework (built on HUnit) for WAI applications. (deprecated) (deprecated, library, mit, testing, web, yesod)GregWeber, MichaelSnoyman
wai-thrift60.0Thrift transport layer for Wai (library, mit, web)yogeshsajanikar
wai-throttler90.0Wai middleware for request throttling (library, mit, web)mkulkin
wai-websockets10500.0Provide a bridge between WAI and the websockets package. (library, mit, web, yesod)MichaelSnoyman
waitfree120.0A wrapping library for waitfree computation. (concurrency, library, mit, system)YoichiHirai
waitra90.0A very simple Wai router (library, mit, web)phadej
warp32652.5A fast, light-weight web server for WAI applications. (benchmark, library, mit, web, yesod)KazuYamamoto, MichaelSnoyman
warp-static (deprecated in favor of wai-app-static)310.0Static file server based on Warp and wai-app-static (deprecated) (deprecated, mit, program, web)MichaelSnoyman
warp-tls13622.0HTTP over TLS support for Warp via the TLS package (library, mit, web, yesod)KazuYamamoto, MichaelSnoyman
watcher70.0Opinionated filesystem watcher (library, mit, system)NateSoares
weather-api210.0Weather API implemented in Haskell (api, library, mit)PeterGoncharov
web-fpco50.0Wrappers for web frameworks to ease usage with the FP Complete environment. (library, mit, web)MichaelSnoyman
web-push90.0Send messages using Web Push protocol. (library, mit, web)sarthakbagaria
web-routing160.0simple routing library (benchmark, library, mit, web)HirotomoMoriwaki, winterland
webapp312.0Haskell web app framework based on WAI & Warp (library, mit, web)natesymer
webdriver-angular250.0Webdriver actions to assist with testing a webpage which uses Angular.Js (library, mit, web)JohnLenz
webify180.0webfont generator (mit, program, web)ananthakumaran, srhb
webpage200.0Organized and simple web page scaffold for blaze and lucid (library, mit, unclassified)athanclark
webrtc-vad210.0Easy voice activity detection (library, mit, sound)PatrickChilton
weighted100.0Writer monad which uses semiring constraint (control, library, mit)oisdk
welshy30.0Haskell web framework (because Scotty had trouble yodeling) (library, mit, web)MichaelSchroeder
why340.0Haskell support for the Why3 input format. (languages, library, mit)EricMertens
wigner-symbols70.0CG coefficients and Wigner symbols. (benchmark, library, math, mit)Rufflewind
with-location (deprecated in favor of call-stack)370.0Use ImplicitParams-based source locations in a backward compatible way (data, deprecated, library, mit)SimonHengel
wl-pprint-console180.0Wadler/Leijen pretty printer supporting colorful console output. (library, mit, text)minad
wobsurv30.0A simple and highly performant HTTP file server (library, mit, network, networking, program, service)NikitaVolkov
wolf690.0Amazon Simple Workflow Service Wrapper. (aws, cloud, distributed-computing, library, mit, network, program)markfine
woot170.0Real time group editor without operational transform. (data, library, mit)tgolson
workdays70.0Workday calculations (library, mit, time)jsl, jpvillaisaza, stackbuilders
wreq-stringless100.0Simple wrapper to use wreq without Strings (library, mit, web)jkeck
wright10.0Colour space transformations and metrics. (data, library, mit)vi
wuss450.0Secure WebSocket (WSS) clients (library, mit, network)fozworth
xbattbar60.0Simple battery indicator (graphics, mit, program)AlexanderPolakov
xdcc270.0A wget-like utility for retrieving files from XDCC bots on IRC (mit, network, program)JanGerlinger
xgboost-haskell260.0XGBoost library for Haskell. (development, library, mit, program)
xkbcommon110.0Haskell bindings for libxkbcommon (benchmark, library, mit, text)AukeBooij
xlsior90.0Streaming Excel file generation and parsing (codec, library, mit)rcallahan
xlsx622.25Simple and incomplete Excel file parser/writer (codec, library, mit)KirillZaborsky
xlsx-templater22.0Simple and incomplete Excel file templater (codec, library, mit, program)KirillZaborsky
xml-conduit35972.0Pure-Haskell utilities for dealing with XML with the conduit package. (conduit, library, mit, xml)MichaelSnoyman, koral
xml-conduit-decode60.0Historical cursors & decoding on top of xml-conduit. (library, mit, xml)BenKolera
xml-conduit-writer480.0Warm and fuzzy creation of XML documents. (library, mit, text)AlexanderBondarenko
xml-isogen390.0Generate XML-isomorphic types (data, library, mit)typeable
xml-query110.0A parser-agnostic declarative API for querying XML-documents (data, library, mit, parsing, xml)NikitaVolkov
xml-query-xml-conduit30.0A binding for the "xml-query" and "xml-conduit" libraries (data, library, mit, parsing, xml)NikitaVolkov
xml-query-xml-types70.0An interpreter of "xml-query" queries for the "xml-types" documents (data, library, mit, parsing, xml)NikitaVolkov
xml-to-json190.0Library and command line tool for converting XML files to json (library, mit, program, web, xml)NoamLewis
xml-to-json-fast100.0Fast, light converter of xml to json capable of handling huge xml files (json, library, mit, program, web, xml)NoamLewis
xml-types22610.0Basic types for representing XML (library, mit, text, xml)JohnMillikin
xmltv60.0Show tv channels in the terminal (library, mit, program, system)dagle
xmonad-entryhelper80.0XMonad config entry point wrapper (library, mit, xmonad)javran
xmonad-screenshot160.0Workspaces screenshooting utility for XMonad. (library, mit, xmonad)DmitryMalikov
xsha152.0cryptanalysis of Blizzard's broken SHA-1 implementation. (cryptography, library, mit)AlexKropivny
yabi162.0Yet Another Brainfuck Interpreter (compilers-interpreters, mit, program)fgaz
yabi-muno40.0Yet Another Brainfuck Interpreter (language, library, mit, program)L8D
yahoo-finance-conduit30.0Streaming aproach to the yahoo finance api (data, library, mit)AlexanderThiemann
yaml-combinators210.0YAML parsing combinators for improved validation and error reporting (library, mit, text)RomanCheplyaka
yaml-config210.0Configuration management (configuration, library, mit)FedorGogolev, MaximMitroshin
yampa204830.02048 game clone using Yampa/Gloss (game, mit, program)ksaveljev
yandex-translate150.0Bindings to Yandex translate API (library, mit, network)johhy1313
yarn-lock1350.0Represent and parse yarn.lock files (data, library, mit)Profpatsch
yarr160.0Yet another array library (data-flow, data-structures, graphics, library, mit)DominicSteinitz, RomanLeventov
yarr-image-io90.0Image IO for Yarr library (graphics, library, mit)DominicSteinitz, RomanLeventov
yeller90.0A Yeller Client For Haskell (benchmark, library, mit, network)TomCrayford
yes-precure5-command130.0Extended yes command to reproduce phrases in Yes! Precure 5. (acme, library, mit, program)igrep
yeshql390.0YesQL-style SQL database abstraction (database, library, mit)TobiasDammers
yesod9862.0Creation of type-safe, RESTful web applications. (library, mit, web, yesod)GregWeber, MichaelSnoyman, psibi
yesod-auth2300.0Authentication for Yesod. (library, mit, web, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi
yesod-auth-account330.0An account authentication plugin for Yesod (library, mit, web)JohnLenz
yesod-auth-account-fork60.0An account authentication plugin for Yesod (library, mit, web)FelipeLessa
yesod-auth-bcrypt80.0BCrypt salted and hashed passwords in a database as auth for yesod (library, mit, web, yesod)olihunt, TobyGoodwin
yesod-auth-hashdb801.5Authentication plugin for Yesod. (library, mit, web, yesod)paulrouse
yesod-auth-hmac-keccak100.0An account authentication plugin for yesod with encrypted token transfer. (library, mit, web)nek0
yesod-auth-ldap-mediocre30.0Very simlple LDAP auth for yesod (library, mit, web)andrewthad
yesod-auth-nopassword152.0A plugin for Yesod to provide email-only authentication. (library, mit, web)danpalmer
yesod-auth-pam40.0Provides PAM authentication module (library, mit, web, yesod)KazuoKoga
yesod-auth-smbclient70.0Authentication plugin for Yesod using smbclient (library, mit, web, yesod)KazuoKoga
yesod-bin2060.0The yesod helper executable. (mit, program, web, yesod)GregWeber, MichaelSnoyman, psibi
yesod-bootstrap170.0Bootstrap widgets for yesod (library, mit, web)andrewthad
yesod-core4600.0Creation of type-safe, RESTful web applications. (library, mit, web, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi
yesod-crud-persist100.0Flexible CRUD subsite usable with Yesod and Persistent. (library, mit, web)andrewthad
yesod-csp140.0Add CSP headers to Yesod apps (library, mit, web)boblong
yesod-default1070.0Default config and main functions for your yesod application (deprecated) (library, mit, web, yesod)MichaelSnoyman
yesod-elements110.0Non template haskell markup building function in the spirit of lucid (library, mit, web)andrewthad
yesod-eventsource270.0Server-sent events support for Yesod apps. (library, mit, web, yesod)FelipeLessa, MichaelSnoyman, psibi
yesod-fay360.0Utilities for using the Fay Haskell-to-JS compiler with Yesod. (library, mit, web, yesod)ChrisDone, MichaelSnoyman
yesod-form3450.0Form handling support for Yesod Web Framework (library, mit, web, yesod)FelipeLessa, GregWeber, MichaelSnoyman, psibi
yesod-form-bootstrap4250.0renderBootstrap4 (library, mit, web)ncaq
yesod-form-json50.0Extension for Yesod web framework to handle JSON requests as applicative forms (library, mit, web, yesod)acheshkov
yesod-form-richtext190.0Various rich-text WYSIWYG editors for Yesod forms. (library, mit, web, yesod)geraldus
yesod-gitrepo90.0Host content provided by a Git repo (library, mit, web)MichaelSnoyman
yesod-json310.0Generate content for Yesod using the aeson package. (deprecated) (library, mit, web, yesod)FelipeLessa, MichaelSnoyman
yesod-media-simple50.0Simple display of media types, served by yesod (graphics, library, mit)MichaelSloan
yesod-newsfeed490.0Helper functions and data types for producing News feeds. (library, mit, web, yesod)GregWeber, MichaelSnoyman, PatrickBrisbin, psibi
yesod-pagination160.0Pagination in Yesod (library, mit, web)JoelTaylor
yesod-paypal-rest50.0Yesod plugin to use PayPal with the paypal-rest-client library. (library, mit, yesod)meoblast001
yesod-persistent2490.0Some helpers for using Persistent from Yesod. (database, library, mit, web, yesod)MichaelSnoyman, psibi
yesod-platform770.0Meta package for Yesod (deprecated) (library, mit, web, yesod)MichaelSnoyman
yesod-pure50.0Yesod in pure Haskell: no Template Haskell or QuasiQuotes (deprecated) (library, mit, web, yesod)MichaelSnoyman
yesod-purescript110.0PureScript integration for Yesod (library, mit, web, yesod)mp
yesod-raml120.0RAML style route definitions for Yesod (library, mit, web, yesod)junjihashimoto
yesod-raml-bin50.0The raml helper executable. (mit, program, web, yesod)junjihashimoto
yesod-raml-docs70.0A html documentation generator library for RAML. (library, mit, web, yesod)junjihashimoto
yesod-raml-mock60.0A mock-handler generator library from RAML. (library, mit, web, yesod)junjihashimoto
yesod-recaptcha2210.0yesod recaptcha2 (library, mit, web)ncaq
yesod-routes (deprecated in favor of yesod-core)290.0Efficient routing for Yesod. (deprecated) (deprecated, library, mit, web, yesod)MichaelSnoyman
yesod-routes-flow100.0Generate Flow routes for Yesod (library, mit, web)FelipeLessa, GregWeber
yesod-routes-typescript10.0generate TypeScript routes for Yesod (library, mit, web)GregWeber
yesod-s3 (deprecated)20.0Simple Helper Library for using Amazon's Simple Storage Service (S3) with Yesod (deprecated, library, mit, yesod)TvH
yesod-sitemap210.0Generate XML sitemaps. (library, mit, web, yesod)MichaelSnoyman, psibi
yesod-static2250.0Static file serving subsite for Yesod Web Framework. (library, mit, web, yesod)FelipeLessa, MichaelSnoyman, psibi
yesod-static-angular200.0Yesod generators for embedding AngularJs code into yesod-static at compile time (library, mit, web)JohnLenz
yesod-table (deprecated in favor of colonnade, yesod-colonnade)270.0HTML tables for Yesod (deprecated, library, mit, web)andrewthad
yesod-test1200.0integration testing for WAI/Yesod Applications (library, mit, testing, web, yesod)GregWeber, MichaelSnoyman, psibi
yesod-tls70.0Provides main functions using warp-tls for yesod projects (library, mit, web, yesod)netom
yesod-transloadit252.0Transloadit support for Yesod (library, mit, web)boblong
yesod-websockets360.0WebSockets support for Yesod (library, mit, web)MichaelSnoyman, psibi
yi-solarized40.0Solarized colour theme for the Yi text editor (editor, library, mit)Norfair
yocto100.0A Minimal JSON Parser & Printer for Haskell (library, mit, text)ajg
yoctoparsec110.0A truly tiny monadic parsing library (library, mit, parsing)mniip
z3-encoding50.0High-level assertion encoding to Z3 solver (language, library, mit)izgzhen
zendesk-api40.0Zendesk API for Haskell programming language. (api, library, mit)VictorDenisov
zeno70.0An automated proof system for Haskell programs (mit, program, theorem-provers)WilliamSonnex
zerobin221.5Post to 0bin services (cryptography, library, mit, web)ip1981
zeromq-haskell310.0Bindings to ZeroMQ 2.1.x (ffi, library, mit, system)ToralfWittner
zeromq3-haskell130.0Bindings to ZeroMQ 3.x (ffi, library, mit, system)ToralfWittner
zeromq4-haskell590.0Bindings to ZeroMQ 4.x (ffi, library, mit, system)ToralfWittner
zifter410.0zifter (library, mit, zift)Norfair
zifter-cabal80.0zifter-cabal (library, mit, zift)Norfair
zifter-git40.0zifter-git (library, mit, zift)Norfair
zifter-google-java-format50.0zifter-google-java-format (library, mit, zift)Norfair
zifter-hindent80.0zifter-hindent (library, mit, zift)Norfair
zifter-hlint60.0zifter-hlint (library, mit, zift)Norfair
zifter-stack140.0zifter-stack (library, mit, zift)Norfair
zipkin40.0Zipkin-style request tracing monad (library, mit, network)srijs
zlib-enum1020.0Enumerator interface for zlib compression (codec, compression, enumerator, mit)MalteSommerkorn