30 seconds of code Alternatives

There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.

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Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.

Download and solve practice problems in over 30 different languages.

Find updated snippets for common JavaScript use cases

Share your abomination with the world

Join Udacity to learn the latest in Deep Learning, Machine Learning, Web Development & more, with Nanodegree programs & free online courses.

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Learn to code (for free) with interactive challenges. Gain XP, unlock achievements and climb the leaderboard. Edabit goes beyond basic syntax and teaches its users how to think like real programmers, so they can finally start making cool things.

A beautiful cross-platform code snippet manager

An opinionated code formatter