HTML Formatter
Paste messy HTML and beautify it with clean indentation, or minify it for production. Void-element aware, preserves script and style blocks. Runs entirely in your browser.
How to Beautify and Minify HTML Online
ToolsPix HTML Formatter lets you instantly beautify messy HTML with clean indentation or minify it for production — all powered by the battle-tested js-beautify library running entirely in your browser. There is no software to install, no account to create, and no need to upload files to any server.
Why use ToolsPix HTML Formatter?
- Completely free with no file-size limits or usage caps
- 100% client-side — your HTML never leaves your device
- Works on Windows, Mac, Linux, and mobile browsers
- Void-element aware: handles
<br>,<img>,<input>and all HTML5 void tags correctly - No watermarks, no registration, no tracking
Steps to format HTML
Paste your HTML into the Input panel on the left. Choose Beautify to add clean indentation or Minify to strip whitespace for production. Adjust options — indent size, attribute wrapping, void-element style, comment handling — then click the action button or enable Auto-run for instant results. Copy or download the output when done. Once the page is loaded, the tool also works completely offline.
FAQ
Does this HTML formatter modify my content?
No. Beautify only adjusts whitespace and indentation. Minify removes whitespace, comments, and optional tags, but never changes attribute values, text content, or the DOM structure your HTML describes.
Will it format content inside <script> and <style> tags?
The contents of <script>, <style>, <pre>, and <textarea> are preserved as-is in both Beautify and Minify modes. Formatting JavaScript or CSS would require a dedicated parser for each language — use our JS Minifier or CSS Minifier instead.
What are "void elements" and why do they matter?
Void elements like <br>, <img>, <input>, <meta>, and <hr> cannot have closing tags in HTML5. The formatter is aware of these and will not try to close them. You can choose XHTML-style self-closing (<br/>) or plain HTML5 (<br>) via the Self-Closing Void option.
How much can minification actually reduce file size?
Typical savings on hand-written HTML range from 15% to 40%, depending on indentation style, comment volume, and use of optional closing tags. Savings on already-minified HTML from build tools will be minimal.
Is my HTML sent to a server?
No. All parsing, beautifying, and minifying runs entirely in your browser with JavaScript. Nothing is uploaded, logged, or stored. You can disconnect from the internet after the page loads and the tool still works.