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Ruff vs Pylint: catalog facts
Ruff	Pylint
Free The open-source application is available without a license fee.	Free Free and open source under GPL-2.0.
Windows, macOS, Linux	Command line
Linting, formatting and fix support in one tool	Analyzes code without running it Configurable checks and plugin support
It does not replace running your program or its tests.	Third-party libraries may require plugins for full support.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0-or-later
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.