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Home/Tools/JavaScript Tools/JavaScript Formatter & Beautifier

JavaScript Formatter & Beautifier

Format and beautify JavaScript code online for free. Pretty-print JS with Prettier — industry standard formatter. Browser-based, your code never leaves your device.

Your data never leaves your browser

Related

CSS Formatter & Beautifier

Format and beautify CSS with proper indentation

HTML Formatter & Beautifier

Format and beautify HTML with proper indentation

JavaScript Minifier

Compress JavaScript with Terser for production

Frequently Asked Questions

Does this use Prettier?

Yes. The formatter uses Prettier's browser-compatible standalone build — the same tool used by millions of developers. You get identical output to running Prettier locally.