Haskell Library

Open-source Haskell projects categorized as Library

Top 23 Haskell Library Projects

  1. LambdaHack

    Haskell game engine library for roguelike dungeon crawlers; please offer feedback, e.g., after trying out the sample game with the web frontend at

  2. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  3. diagnose

    A simple library for reporting compiler/interpreter errors

  4. hal

    hal provides an AWS Lambda Custom Runtime environment for your Haskell applications. (by Nike-Inc)

  5. universum

    :milky_way: Prelude written in @Serokell

  6. hocker

    Utilities for interacting with the docker registry and generating nix build instructions

  7. membrain

    🧠 Type-safe memory units

  8. clock

    High-resolution clock functions: monotonic, realtime, cputime. (by corsis)

  9. language-puppet

    A library to work with Puppet manifests, test them and eventually replace everything ruby.

  10. antlr-haskell

    A language parsing quasiquoter for Haskell based heavily on ANTLR4.

  11. cofree-bot

    A library for building bots compositionally.

    Project mention: Co-Alegebraic Chat Bots in Haskell [Not AI] | news.ycombinator.com | 2026-02-19
  12. ipfs

    IPFS wrapper for Haskell

  13. tensors

    Tensors in Haskell

  14. core-data

    Opinionated Haskell Interoperability

  15. graphite

    Haskell graphs and networks library (by alx741)

  16. mattermost-api

    Client side API for communicating with a mattermost server in Haskell

  17. rescue

    🚒✨ Rescue: better errors through types (a more type directed MonadThrow/MonadCatch)

  18. valor

    Simple and powerful data validation library with Applicative and Monad interface.

  19. makefile

    Haskell Makefile parser

  20. c-mosquitto

    Simple Amazon IoT compatible client

  21. text-builder

    An efficient strict text builder

  22. qm-interpolated-string

    Implementation of interpolated multiline strings that ignores indentation and trailing whitespaces

  23. iri

    RFC-compliant universal resource identifier library (URL, URI, IRI)

  24. fits-parse

    Parse FITS files for Astronomy data analysis.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Library projects in Haskell? This list will help you:

# Project Stars
1 LambdaHack 661
2 diagnose 268
3 hal 244
4 universum 186
5 hocker 128
6 membrain 61
7 clock 59
8 language-puppet 53
9 antlr-haskell 52
10 cofree-bot 52
11 ipfs 43
12 tensors 40
13 core-data 33
14 graphite 31
15 mattermost-api 25
16 rescue 20
17 valor 18
18 makefile 14
19 c-mosquitto 13
20 text-builder 7
21 qm-interpolated-string 6
22 iri 4
23 fits-parse 4

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Did you know that Haskell is
the 30th most popular programming language
based on number of references?