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ESLint vs Biome: catalog facts
ESLint	Biome
Free Free and open source, funded by sponsors.	Free Free and open source, funded through Open Collective.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Automatic, syntax-aware fixes Configurable rules and plugin system	Formatter and linter in one fast tool Close compatibility with Prettier formatting
Configuration can get complex across plugins Major version upgrades require migration work	Not a full replacement for every ESLint plugin Some formatting differs from Prettier
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT OR Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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