Free Alternative to SonarQube
7 free & open-source projects that replace SonarQube.
Compare at a Glance
| vs SonarQube |  ruff |  open-code-review |  golangci-lint |  checkstyle |  repowise |  codeflow |  anti-slop |
|---|---|---|---|---|---|---|---|
| Stars | 50k | 43k | 19k | 9.6k | 7.2k | 5.3k | 5.0k |
| Forks | 2.5k | 3.1k | 1.6k | 4.3k | 784 | 801 | 110 |
| Contributors | 30 | 30 | 30 | 30 | 30 | 16 | 4 |
| Last Commit | Sep 9, 2026 | Sep 12, 2026 | Aug 30, 2026 | Aug 30, 2026 | Jun 16, 2026 | Sep 22, 2026 | Aug 18, 2026 |
| License | MIT | Apache-2.0 | GPL-3.0 | LGPL-2.1 | NOASSERTION | MIT | MIT |
| Language | Rust | Go | Go | Java | Python | HTML | TypeScript |
Tired of the recurring costs and complexities associated with commercial code quality platforms like SonarQube? Meet anti-slop, the ultimate free and open-source solution designed to transform your TypeScript and JavaScript development workflow.
It leverages powerful, opinionated Oxlint rules to automatically identify and reject low-evidence and sloppy coding patterns, ensuring your projects maintain the highest standards of clarity, consistency, and robustness.
- 💡 Prevent sloppy code
- 🛡️ Enforce TypeScript/JS standards
- 🚀 Boost code quality
- ✨ Cleanse JavaScript patterns
- 🚫 Reject low-evidence code
Get the benefits of advanced code quality enforcement without ever paying a dime. anti-slop is 100% free, open-source, and supported by the community, offering a sustainable path to cleaner code.
Ready to elevate your code? Discover anti-slop and experience superior code quality for free. Visit Fossy now: https://fossy.dev/dmmulroy/anti-slop
