HTML Beautifier Online
Free online HTML formatter: beautify minified HTML with proper indentation — 100% in your browser, no upload.
About HTML Formatter
HTML Formatter turns minified or messy markup into clean, readable HTML with proper nesting and indentation. Everything runs locally in your browser — your markup is never sent to a server.
How to use HTML Formatter
- Paste your HTML into the input box.
- Choose the indent size and click Beautify.
- Copy the result or download it as an .html file.
Frequently asked questions
Is HTML Formatter really free?
Yes — HTML Formatter is completely free, with no account, no watermark, and no usage limits. It runs entirely in your browser.
Are my files uploaded to a server?
No. All processing happens locally on your device using WebAssembly. Your files never leave your computer — close the tab and nothing remains.
Which browsers are supported?
Any modern browser on desktop or mobile: Chrome, Firefox, Safari, and Edge.
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