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Exercism

Hi there 👋

Welcome to the behind-the-scenes home of Exercism!

Our website is powered by hundreds of different repositories, which you're free to browse and explore. Each track has a content repository (e.g. exercism/ruby) and one or more tooling repositories (e.g. exercism/ruby-test-runner, exercism/ruby-analyzer). The website source-code lives at exercism/website.

  • If you're looking to open an issue, the best place for nearly all issues is the exercism/exercism repository. We can then triage it to the right place as appropriate.
  • If you're looking to contribute, our contributing page is a good starting point. Be aware that different repositories have different contributing guidelines - you can always feel free to open an issue to ask how to help if you're unsure 🙂

Everything in Exercism is covered by our Code of Conduct - please take a read and adhere to it in discussions on GitHub.

Finally, please note that different parts of Exercism are licenced under different licences, so please be mindful of the specific licence for any code you use!

Have fun! 🎉

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  1. exercism exercism Public

    Crowd-sourced code mentorship. Practice having thoughtful conversations about code.

    7.6k 1k

  2. cli cli Public

    A Go based command line tool for exercism.org.

    Go 1.4k 369

  3. generic-track generic-track Public

    Shell 28 27

  4. docs docs Public

    Exercism's docs. View them at Exercism's website, not on GitHub.

    50 97

  5. website website Public

    The codebase for Exercism's website.

    Ruby 525 158

  6. problem-specifications problem-specifications Public

    Shared metadata for exercism exercises.

    Ruby 349 557

Repositories

Showing 10 of 424 repositories
  • go Public

    Exercism exercises in Go.

    exercism/go’s past year of commit activity
    Go 1,131 MIT 684 25 9 Updated Mar 3, 2026
  • r Public

    Exercism exercises in R.

    exercism/r’s past year of commit activity
    R 28 MIT 44 16 6 Updated Mar 2, 2026
  • ocaml Public

    Exercism exercises in OCaml.

    exercism/ocaml’s past year of commit activity
    OCaml 104 MIT 55 6 (3 issues need help) 8 Updated Mar 2, 2026
  • exercism/php-representer’s past year of commit activity
    PHP 1 AGPL-3.0 3 1 0 Updated Mar 2, 2026
  • exercism/roc-test-runner’s past year of commit activity
    Shell 3 AGPL-3.0 3 0 0 Updated Mar 2, 2026
  • coffeescript Public

    Exercism exercises in CoffeeScript.

    exercism/coffeescript’s past year of commit activity
    CoffeeScript 19 MIT 49 5 1 Updated Mar 2, 2026
  • exercism/emacs-lisp-representer’s past year of commit activity
    Shell 0 AGPL-3.0 3 0 2 Updated Mar 2, 2026
  • exercism/php-test-runner’s past year of commit activity
    PHP 0 AGPL-3.0 6 3 0 Updated Mar 2, 2026
  • exercism/ruby-representer’s past year of commit activity
    Ruby 4 AGPL-3.0 6 1 2 Updated Mar 2, 2026
  • php Public

    Exercism exercises in PHP.

    exercism/php’s past year of commit activity
    PHP 165 MIT 146 19 (4 issues need help) 3 Updated Mar 2, 2026