Exercism
Free coding practice in 70+ languages with human mentoring
Visit exercism.org FreeOpen source
Exercism is a not-for-profit platform with coding exercises in more than 70 programming languages. Learners solve exercises locally or in the browser and can request feedback from volunteer mentors.
Key features
- Exercises in 70+ languages
- Free human mentoring
- Learning tracks with concepts
- CLI or in-browser editor
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