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JS Beautifier vs Biome: catalog facts
JS Beautifier	Biome
Free Free and open source under the MIT license.	Free Free and open source, funded through Open Collective.
Web, Command line	Windows, macOS, Linux, Command line
Formats several web languages and JSON Browser interface provides configurable formatting options	Formatter and linter in one fast tool Close compatibility with Prettier formatting
The Python version formats JavaScript only; HTML and CSS require the separate css-beautify package.	Not a full replacement for every ESLint plugin Some formatting differs from Prettier
Downloadable app, Web application	Downloadable app
Open source	Open source
License: MIT	License: MIT OR Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 23, 2026

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