SonarQube Cloud for Open Source

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Public repository

What to know

Free for all open source projects, plus a free tier for private projects up to 50k lines. Their old application URL 404ed on 2026-09-19 and was corrected to the current page.

Apply at SonarSource →

Goes to SonarSource's own page. We last read it on 2026-09-19 and check it again every morning.