Is Prettier free and open source?

Yes. Prettier is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/prettier/prettier.

What language is Prettier written in?

Prettier is primarily written in JavaScript.

What are open-source alternatives to Prettier?

Other open-source developer tools & cli tools on OSSDrop include Oh My Zsh, VS Code, MarkItDown, Go.

Prettier

Curated

Opinionated code formatter supporting JavaScript, TypeScript, CSS, and many other languages.

Visit prettier.io Source

Developer Tools & CLI·MIT·JavaScript·52.2k stars·3.9.6·added 2026-08-16

Curated listing — added by OSSDrop, not the maker.

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Frequently asked

What is Prettier?
Prettier is an open-source developer tools & cli tool — Opinionated code formatter supporting JavaScript, TypeScript, CSS, and many other languages. It is written in JavaScript.
Is Prettier free and open source?
Yes. Prettier is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/prettier/prettier.
What language is Prettier written in?
Prettier is primarily written in JavaScript.
What are open-source alternatives to Prettier?
Other open-source developer tools & cli tools on OSSDrop include Oh My Zsh, VS Code, MarkItDown, Go.

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