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LeetCode vs Leetgo: catalog facts
LeetCode	Leetgo
Freemium Many problems are free; a paid Premium subscription is offered.	Free Free and open source under the MIT license.
Web	Command line
Large set of algorithm and data structure problems Solutions are written and run in the browser	Generates code skeletons and test cases Runs tests locally
Focused on puzzle-style problems rather than building real projects Requires an internet connection	Submitting solutions requires a LeetCode account Some local testing features support only selected languages
Web application	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.