The best open source alternative to LeetCode is exercism. If that doesn't suit you, our users have ranked more than 50 alternatives to LeetCode and seven of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to LeetCode are BitDegree, CheckIO, octree.io and SQL Noir.
Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.
Almost everyone thinks exercism is a great LeetCode alternative.
exercism is the most popular Web-based alternative to LeetCode.
exercism is the most popular Open Source & free alternative to LeetCode.
BitDegree is a gamified platform for gaining Web3 skills while earning rewards. Complete fun tasks to get prizes from top crypto brands.
BitDegree is the most popular Self-Hosted alternative to LeetCode.
octree.io is a platform where you can practice Leetcode-style problems in a room with other people. It serves as a supplement to Leetcode as you can invite your friends to practice problems together. It features a Game Room, Trivia Room and a Lobby which is a Slack-like chat...
SQL Noir is a free, browser-based game that helps you learn and practice SQL by solving fictional crimes. Each mission presents a new detective case, complete with its own database full of clues hidden in tables, records, and relationships. Your job?
Go Interview Practice is a platform with coding challenges designed to help you ace your technical interviews in Go. Solve real-world problems, get instant feedback from automated tests, and even simulate interviews with AI-powered feedback.
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