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Haskell repos to contribute to

OpenSrc lists 15 Haskell repositories with open issues for new contributors, and 3 of them are first-PR friendly. Between them they have 256 open good first issues and 176 help-wanted issues. The median welcome score is 72/100, and the best-scored right now are jgm/pandoc, haskell/cabal and ucsd-progsys/liquidhaskell. Most are about Blockchain & Web3, Networking and Compilers & Languages.

15 repos by best score

Filter these in the directory

  • jgm/pandoc

    Universal markup converter

    17good first issues
    • Haskell
    • Stars:46.4K
    • GPL-2.0
    • CONTRIBUTING
    • replies in ~16h
    Score90 out of 100 contributor score, very welcomingFirst-PR friendly

  • haskell/cabal

    Official upstream development repository for Cabal and cabal-install

    21good first issues
    • Haskell
    • Stars:1.7K
    • CONTRIBUTING
    Score78 out of 100 contributor score, very welcomingFirst-PR friendly

  • ucsd-progsys/liquidhaskell

    Liquid Types For Haskell

    38good first issues
    • Haskell
    • Stars:1.3K
    • BSD-3-Clause
    • replies in ~26h
    Score77 out of 100 contributor score, very welcoming

  • digital-asset/daml

    The Daml smart contract language

    27good first issues
    • Haskell
    • Field: Blockchain
    • Stars:917
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~30d
    Score75 out of 100 contributor score, very welcoming

  • digitallyinduced/ihp

    🔥 The fastest way to build type safe web apps. IHP is a new batteries-included web framework optimized for…

    9good first issues+1 help wanted
    • Haskell
    • Field: Databases
    • Field: Web Frontend
    • Stars:5.4K
    • MIT
    • CONTRIBUTING
    • replies in ~17d
    Score74 out of 100 contributor score, welcoming

  • IntersectMBO/plutus

    The Plutus language implementation and tools

    20good first issues
    • Haskell
    • Field: Blockchain
    • Field: Compilers
    • Stars:1.6K
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~30d
    Score73 out of 100 contributor score, welcoming

  • srid/neuron

    Future-proof note-taking and publishing based on Zettelkasten (superseded by Emanote…

    5good first issues+1 help wanted
    • Haskell
    • Field: Docs Tooling
    • Field: Networking
    • Stars:1.6K
    • AGPL-3.0
    • CONTRIBUTING
    Score72 out of 100 contributor score, welcomingFirst-PR friendly

  • cardano-scaling/hydra

    Implementation of the Hydra Head protocol

    16good first issues
    • Haskell
    • Field: Blockchain
    • Field: Networking
    • Stars:337
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~30d
    Score72 out of 100 contributor score, welcoming

  • IntersectMBO/ouroboros-consensus

    Implementation of a Consensus Layer for the Ouroboros family of protocols

    16good first issues
    • Haskell
    • Field: Blockchain
    • Field: Networking
    • Stars:67
    • Apache-2.0
    • CONTRIBUTING
    • replies in ~30d
    Score71 out of 100 contributor score, welcoming

  • unisonweb/unison

    A friendly programming language from the future

    11good first issues+55 help wanted
    • Haskell
    • Field: Compilers
    • Stars:6.7K
    Score70 out of 100 contributor score, welcoming

  • LambdaHack/LambdaHack

    Haskell game engine library for roguelike dungeon crawlers; please offer feedback, e.g., after trying out the…

    30good first issues+92 help wanted
    • Haskell
    • Field: Game Dev
    • Field: Web Frontend
    • Stars:664
    • BSD-3-Clause
    Score68 out of 100 contributor score, welcoming

  • crytic/echidna

    Ethereum smart contract fuzzer

    5good first issues+1 help wanted
    • Haskell
    • Field: Blockchain
    • Field: Security
    • Stars:3.2K
    • AGPL-3.0
    • CONTRIBUTING
    • replies in ~17d
    Score67 out of 100 contributor score, welcoming

  • ndmitchell/hlint

    Haskell source code suggestions

    18good first issues
    • Haskell
    • Stars:1.6K
    • replies in ~30d
    Score62 out of 100 contributor score, welcoming

  • B-Lang-org/bsc

    Bluespec Compiler (BSC)

    16good first issues
    • Haskell
    • Field: Compilers
    • Stars:1.1K
    • replies in ~30d
    Score61 out of 100 contributor score, welcoming

  • Mikolaj/horde-ad

    Higher Order Reverse Derivatives Efficiently - Automatic Differentiation library. See…

    7good first issues+26 help wanted
    • Haskell
    • Field: Machine Learning
    • Field: Networking
    • Stars:46
    • BSD-3-Clause
    Score50 out of 100 contributor score, some assembly required

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