HTML Formatter Online
Beautify minified HTML and minify HTML to remove whitespace. Clean, indented output with void element support.
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About HTML Formatter & Minifier Online
Beautify minified HTML code with proper indentation or minify HTML to reduce file size by removing whitespace and comments.
Minified HTML — common in production builds and when copying markup from browser dev tools — strips all whitespace and line breaks to reduce file size, which makes it fast to load but nearly impossible to read or edit manually. Re-indenting it with proper nesting makes the document structure immediately visible again, which is essential when debugging a layout issue, learning from someone else's markup, or cleaning up HTML pasted from a CMS export. Conversely, minifying formatted HTML before deployment measurably reduces page weight and improves load time, particularly on high-traffic pages. This tool handles both directions and shows the byte-size difference between formatted and minified versions so you can see the actual size savings.
How to use
- Paste or type your input directly into the editor — output updates in real time as you work.
- Check the error/status indicator if your input is invalid; it points to the exact line or issue where relevant.
- Use the copy or download button to grab the processed output once it looks right.
- Chain into a related tool below if your workflow needs a second processing step.
- Processing happens entirely client-side in your browser — nothing you paste is uploaded to a server.
Tool details
⚡ Next step — complete your workflow
Frequently asked questions
Does minifying HTML break the page?
No. HTML minification removes whitespace between tags — the browser renders identical output. Saves 10-30% file size.
Is HTML formatting lossless?
Beautifying is lossless. Minification removes comments and whitespace only — content and structure are preserved.
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