Toolsly
Beautifier

HTML Beautifier

Paste minified or messy HTML and reformat it with consistent indentation, line breaks between sibling elements and tidy attribute alignment. Pick 2 spaces, 4 spaces or tabs to match your project style. Powered by js-beautify's html_beautify. Runs entirely in your browser — your markup 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 HTML Beautifier free to use?

Yes. HTML 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 — HTML 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 HTML Beautifier work?

Open HTML 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 HTML Beautifier support?

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