pyrefly

facebook

A fast type checker and language server for Python

rust python

View on GitHub Website

5.6k Stars

310 Forks

5.6k Watchers

Rust Language

mit License

100 SrcLog Score

Cost to Build

$38.01M

Market Value

$254.87M

How is this calculated?

Growth over time

4 data points · 2025-08-11 → 2026-04-15

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What is the facebook/pyrefly GitHub project? Description: "A fast type checker and language server for Python". Written in Rust. Explain what it does, its main use cases, key features, and who would benefit from using it.

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How to clone pyrefly

Clone via HTTPS

git clone https://github.com/facebook/pyrefly.git

Clone via SSH

[email protected]:facebook/pyrefly.git

Download ZIP

Download master.zip

Found an issue?

Report bugs or request features on the pyrefly issue tracker:

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