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Announcing Astral, the company behind Ruff -
 

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Next-gen
Python tooling

 
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Fast, unified, futuristic

Astral's mission is to make the Python ecosystem more productive by
building high-performance developer tools, starting with Ruff.

Ruff pattern
[]Ruff logoRuff logo

Ruff

Lint at lightspeed

An extremely fast Python linter, written in Rust.

 
Learn more

Linting the CPython codebase, from scratch.

  * 
    Ruff

    s
    s
  * 
    Autoflake

    s
    s
  * 
    Flake8

    s
    s
  * 
    Pyflakes

    s
    s
  * 
    pycodestyle

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  * 
    Pylint

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Tried and tested.
Powering impactful projects across open source.

    Sebastian RamirezSebastian Ramirez

    Ruff is so fast that sometimes I add an intentional bug in the
    code just to confirm it's actually running.

    Sebastian RamirezSebastian Ramirez
    Sebastian Ramirez

    Creator of FastAPI

    Nick SchrockNick Schrock

    Why is Ruff a gamechanger? Primarily because it's nearly 1000x
    faster. Literally. Not a typo.

    Nick SchrockNick Schrock
    Nick Schrock

    Founder of Elementl, co-creator of GraphQL

    Timothy CrosleyTimothy Crosley

    Just switched my first project to Ruff. Only one downside so far:
    it's so fast I couldn't believe it was working until I
    intentionally introduced some errors.

    Timothy CrosleyTimothy Crosley
    Timothy Crosley

    Software Engineer at Stripe, Creator of isort

    Sebastian RamirezSebastian Ramirez

    Ruff is so fast that sometimes I add an intentional bug in the
    code just to confirm it's actually running.

    Sebastian RamirezSebastian Ramirez
    Sebastian Ramirez

    Creator of FastAPI

    Nick SchrockNick Schrock

    Why is Ruff a gamechanger? Primarily because it's nearly 1000x
    faster. Literally. Not a typo.

    Nick SchrockNick Schrock
    Nick Schrock

    Founder of Elementl, co-creator of GraphQL

    Timothy CrosleyTimothy Crosley

    Just switched my first project to Ruff. Only one downside so far:
    it's so fast I couldn't believe it was working until I
    intentionally introduced some errors.

    Timothy CrosleyTimothy Crosley
    Timothy Crosley

    Software Engineer at Stripe, Creator of isort

    Sebastian RamirezSebastian Ramirez

    Ruff is so fast that sometimes I add an intentional bug in the
    code just to confirm it's actually running.

    Sebastian RamirezSebastian Ramirez
    Sebastian Ramirez

    Creator of FastAPI

    Nick SchrockNick Schrock

    Why is Ruff a gamechanger? Primarily because it's nearly 1000x
    faster. Literally. Not a typo.

    Nick SchrockNick Schrock
    Nick Schrock

    Founder of Elementl, co-creator of GraphQL

    Timothy CrosleyTimothy Crosley

    Just switched my first project to Ruff. Only one downside so far:
    it's so fast I couldn't believe it was working until I
    intentionally introduced some errors.

    Timothy CrosleyTimothy Crosley
    Timothy Crosley

    Software Engineer at Stripe, Creator of isort

    Sebastian RamirezSebastian Ramirez

    Ruff is so fast that sometimes I add an intentional bug in the
    code just to confirm it's actually running.

    Sebastian RamirezSebastian Ramirez
    Sebastian Ramirez

    Creator of FastAPI

    Nick SchrockNick Schrock

    Why is Ruff a gamechanger? Primarily because it's nearly 1000x
    faster. Literally. Not a typo.

    Nick SchrockNick Schrock
    Nick Schrock

    Founder of Elementl, co-creator of GraphQL

    Timothy CrosleyTimothy Crosley

    Just switched my first project to Ruff. Only one downside so far:
    it's so fast I couldn't believe it was working until I
    intentionally introduced some errors.

    Timothy CrosleyTimothy Crosley
    Timothy Crosley

    Software Engineer at Stripe, Creator of isort

|

Open-source and permissively licensed. Bringing together hundreds of
contributors to empower the most impactful projects in open source
and beyond.

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Space to think

 
AstralAstral
News

April 18, 2023

Announcing Astral, the company behind Ruff

Astral's mission is to make the Python ecosystem more productive by
building high-performance developer tools, starting with Ruff.

 
RuffRuff
News

August 30, 2022

Python tooling could be much, much faster

To prove it, we built Ruff, a high-performance Python linter that's
10-100x faster than existing tools.

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[][yH5BAEAAAA][cta-top-li]

Supercharge your Python tooling

 
Get Started
 
Browse Docs
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(c) 2023 Astral Software Inc.

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