A fast Python type checker and language server, written in Rust, with IDE features like navigation, completion and semantic highlighting.
7.2K+2 this week590RustMITUpdated 19 hours ago
1 alternative
Best open-source alternatives to Mypy (2026)
Looking for a free, open-source alternative to Mypy? These 1 projects can replace it. Each one passed our quality screening and is explained in plain words, so you can compare stars, license and maintenance at a glance.
Quick comparison
| Project | Stars | License | Last commit |
|---|---|---|---|
| meta/pyrefly | ★ 7.2K | MIT | 19 hours ago |
FAQ
- Is there a free, open-source alternative to Mypy?
- Yes. The most popular open-source alternatives to Mypy on Repolode are pyrefly.
- Which Mypy alternative should I choose?
- pyrefly has the most GitHub stars and is released under MIT. Compare the license and last commit of each option in the table above before choosing.
How this list is made: AI reads each project's documentation to match it with products it can replace, every project passes our quality screening, and the list is ranked by GitHub stars. Stars updated Nov 6, 2026. How Repolode works