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astral-sh/ruff

An extremely fast Python linter and code formatter, written in Rust.

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What it does

Ruff is a tool that automatically checks Python code for errors and formatting issues, running 10 to 100 times faster than the tools it replaces. It consolidates the work of multiple separate code-quality tools into one, and can even fix many problems automatically.

Why it matters

For teams building with Python, Ruff dramatically cuts the time spent on code quality checks, which compounds across large codebases and fast-moving engineering teams — meaning faster feedback loops and lower infrastructure costs for automated checks. Its rapid adoption by major projects like FastAPI and Hugging Face signals it is quickly becoming the default standard for Python development tooling.

40Hot

Gaining traction — heating up

Stars
46.7k
Forks
2.0k
Contributors
836
Language
Rust

Score updated Mar 26, 2026

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