Duolingo
Learn languages with fun, bite-sized lessons.
FreemiumLearning Platforms
Overview
Exercism offers coding exercises in many programming languages with optional free mentoring from experienced developers.
Key features
01
Exercises
Practice in 70+ languages.
02
Mentoring
Free human feedback.
03
Learning mode
Concepts in order.
Pros & cons
What's great
- Free and non-profit
- Real mentorship
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