Overview

Ruff is a blazing-fast Python linter and formatter, meticulously engineered in Rust. It's designed to dramatically accelerate your Python development workflow by offering unparalleled speed and a comprehensive feature set, consolidating multiple tools into a single, powerful interface.

Key Features

• Unmatched Speed: Experience 10-100x faster performance compared to traditional linters (like Flake8) and formatters (like Black). Ruff analyzes your code in milliseconds, not minutes.
• All-in-One Solution: Replace a multitude of tools like Flake8 (and its plugins), isort, Black, pydocstyle, pyupgrade, autoflake, and more, all while maintaining superior speed.
• Extensive Rule Coverage: Benefit from over 900 built-in lint rules, including direct Rust re-implementations of popular plugins like flake8-bugbear.
• Seamless Integration: Works effortlessly with pip, uv, pipx, and integrates directly into your workflow via pre-commit hooks, VS Code extensions, and GitHub Actions.
• Intelligent Formatting: Offers robust code formatting capabilities, ensuring consistent style across your projects.
• Configuration Simplicity: Easily configure Ruff using pyproject.toml or dedicated .ruff.toml files, with support for monorepo-friendly hierarchical and cascading configurations.
• Automatic Fixes: Leverage built-in capabilities to automatically correct many common code issues, such as removing unused imports.
• Future-Proof: Designed with compatibility in mind, including support for future Python versions.

Typical Use Cases

• Accelerated Code Quality: Drastically reduce the time spent on linting and formatting, freeing up developers to focus on writing code.
• Consolidated Toolchain: Simplify your project setup and maintenance by replacing numerous Python linting and formatting tools with a single, high-performance solution.
• CI/CD Optimization: Integrate Ruff into your Continuous Integration pipelines for rapid, efficient code analysis without becoming a bottleneck.
• Editor Integration: Enhance your development environment with real-time linting and formatting feedback directly within your IDE (VS Code, and others).
• Project-Wide Consistency: Enforce consistent code style and quality across large codebases and monorepos with its powerful configuration options.
• Early Error Detection: Catch errors and stylistic issues early in the development cycle with its comprehensive rule set.