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Biome vs quick-lint-js: catalog facts
Biome	quick-lint-js
Free Free and open source, funded through Open Collective.	Free Free and open source under GPL-3.0-or-later.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Web, Command line
Formatter and linter in one fast tool Close compatibility with Prettier formatting	Works with no configuration Very fast feedback while typing
Not a full replacement for every ESLint plugin Some formatting differs from Prettier	Minimal rule set compared with ESLint No WebStorm support
Downloadable app	Downloadable app, Web application
Open source	Open source
License: MIT OR Apache-2.0	License: GPL-3.0-or-later
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 October 2, 2026

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