How you can help us build Exercism

Proofread and update


Never contributed to an open source project? Give this a go. We'll help you submit your first pull request.

0 issues need help
Explore 0 issues

Improve a concept or exercise


Fix bugs and make improvements to concepts and exercise across Exercism. Help students have a smooth and error-free experience.

94 issues need help
GNU APL, CFML, Gleam, PureScript + 65 more need help
Explore 94 issues

Create a new exercise or concept


Build out a new exercise or concept based on a track's roadmap. Have fun making interactive content that millions of people will use.

66 issues need help
Io 05AB1E F#
Io, 05AB1E, F#, Fortran + 12 more need help
Explore 66 issues

Develop a test runner


Test runners power our online editor. All tracks have basic test runners, but many need more advanced features and functionality adding.

108 issues need help
Crystal Objective-C Raku
Crystal, Objective-C, Raku, GNU APL + 62 more need help
Explore 108 issues

Develop an analyzer


Analyzers give automated feedback to students through ASTs analysis. These are complex and deeply interesting pieces of software to develop.

56 issues need help
Standard ML Elm JavaScript
Standard ML, Elm, JavaScript, VB.NET + 41 more need help
Explore 56 issues

Develop a representer


Representers help us spot identical solutions so that we can reuse feedback. Simpler than analyzers but fun and interesting to reason about.

50 issues need help
Ceylon x86-64 Assembly OCaml
Ceylon, x86-64 Assembly, OCaml, Standard ML + 42 more need help
Explore 50 issues