Toolsly
Beautifier

JavaScript Beautifier

Paste minified or compact JavaScript and reformat it with consistent indentation, line breaks and brace placement. Pick 2 spaces, 4 spaces or tabs to match your project style. Powered by js-beautify's js_beautify. Runs entirely in your browser — your source never leaves this page.

Privacy

Runs entirely in your browser — nothing is sent to any server.

Cost

Free. No sign-up, no watermark.

Type

Beautifier

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Frequently asked

Is JavaScript Beautifier free to use?

Yes. JavaScript Beautifier is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.

Do my files and data stay private?

Yes — JavaScript Beautifier runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.

How does JavaScript Beautifier work?

Open JavaScript Beautifier, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.

Which browsers does JavaScript Beautifier support?

Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. JavaScript Beautifier uses standard web APIs and does not require any plugin, extension, or sign-up.