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  7. Ruff
Ruff

Ruff

Unclaimed

Extremely fast Python linter

Developer Tools

TL;DR - Ruff

  • Ruff is an extremely fast Python linter and formatter written in Rust
  • It replaces Flake8, isort, and Black with 10-100x faster performance
  • Completely free and open-source
Pricing: Free forever
Best for: Individuals & startups
Score: 85/100

Pricing

Free

Ruff is completely free to use.

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About Ruff

Ruff lints Python with dramatic speed. Rust-powered Python linting—Python tools reimagined for performance. The speed is transformative. The compatibility is growing. The adoption is accelerating. Python projects wanting faster linting adopt Ruff for performance improvement.

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Ruff FAQ

Yes, Ruff is completely free and open source. MIT license. Made by Astral.

Ruff is an extremely fast Python linter written in Rust. Replaces Flake8, isort, and more. 10-100x faster.

Ruff is much faster and has more rules built-in. Flake8 requires plugins. Ruff is the modern choice.

Yes, Ruff includes a formatter compatible with Black. Single tool for linting and formatting Python.

Quick Info

Pricing
Free
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