Ruff

Health v2 · maintenance only

Adoption not part of the score

49933 stars · 2483 forks observed · 2026-10-08

What it is AI-extracted, prompt v1, taxonomy v1, 2026-09-21, confidence 0.99

Ruff is an extremely fast Python linter and code formatter written in Rust. It provides linting, automatic fixing, and formatting through a single command‑line interface.

Use cases

• lint my Python code for style and errors
• auto‑format Python files to a consistent style
• enforce PEP8 and other coding standards in a project
• detect and remove unused imports automatically
• run fast static analysis in CI pipelines
• integrate Ruff with pre‑commit hooks for continuous checks
• apply automatic code fixes across a large codebase

When to choose

• When you need a single tool that replaces Flake8, Black, isort, and similar utilities.
• When performance matters – Ruff is 10‑100× faster than many existing linters and formatters.
• When you want built‑in caching to avoid re‑analyzing unchanged files.
• When you prefer a Rust‑based implementation that can be installed via pip, uv, conda, or Docker.

When to avoid

• If you require deep type checking or static analysis beyond style enforcement (e.g., mypy).
• When you need extensive IDE features like code navigation that rely on a full language server.
• If you prefer a highly modular plugin system rather than an all‑in‑one solution.

Facets

cli-tool · maturity active

cli developer-tools developer-tools programming-languages cross-platform cli fast python-linter code-formatter rust-implemented caching auto-fix editor-integration docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="astral-sh/ruff")