Utilzivo

HTML Minifier

Shrink your HTML files without changing how they look. This minifier removes comments and unnecessary whitespace between tags, producing a smaller file that loads faster for your visitors. It shows you the original and minified sizes plus the exact percentage saved, and lets you copy the result or download it as an .html file. Everything runs locally in your browser.

How to Use the HTML Minifier

  1. Paste your HTML source into the input box.
  2. Click Minify HTML. Comments are stripped and whitespace between tags is collapsed.
  3. Read the stats line to see exactly how many bytes were saved.
  4. Copy the minified code to your clipboard or download it as a file.

Practical example

You built a landing page and the HTML file is 48 KB, mostly because of indentation and developer comments. Paste it here and minify it down to 31 KB — a 35% saving. Replace the original file on your server with the minified version and the page starts rendering sooner, especially for visitors on slow mobile connections. Keep your nicely formatted original for editing, and deploy the minified copy. Many developers make this a habit before every release: edit the readable file, minify, upload, and enjoy consistently lean pages without any build tools or complicated setup.

Key features and benefits

  • Comment removal: all <!-- ... --> comments are stripped, including multi-line ones.
  • Whitespace collapsing: gaps between tags and repeated spaces are reduced to the minimum.
  • Safe zones: content inside <pre>, <textarea>, <script>, and <style> tags is left untouched, so formatting-sensitive content never breaks.
  • Transparent savings: original vs. minified byte counts and percentage saved are shown every time.
  • Copy or download: grab the result for pasting, or save it straight to a file.

Limitations

This is a whitespace-and-comment minifier, not a full HTML optimizer: it does not shorten attribute values, remove optional closing tags, or inline external resources. Whitespace inside normal text nodes is collapsed, which is safe for rendering in almost all cases but could theoretically affect layouts that depend on exact spacing. Always keep a readable original and test the minified page in a browser before deploying it.