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HTML Minifier

Remove whitespace, comments, and unnecessary characters from HTML to reduce file size and improve page load speed.

Input HTML
Minified HTML

About HTML Minifier

HTML minification reduces the file size of HTML documents by removing characters that are not needed for rendering — whitespace between tags, HTML comments, and redundant attribute quotes. Smaller HTML files transfer faster, improving page load times and Core Web Vitals scores.

Options

  • Remove comments — Strips <!-- ... --> comment blocks. Conditional comments for IE are preserved.
  • Collapse whitespace — Replaces multiple spaces/newlines between tags with a single space.
  • Remove optional quotes — Removes quotes from attribute values that don't need them (e.g. class=foo instead of class="foo").

How to Use

  1. Paste your HTML into the input area.
  2. Configure options: remove comments, collapse whitespace, minify inline CSS/JS.
  3. Click Minify — the compressed HTML appears in the output.
  4. The tool shows size reduction in bytes and percentage.
  5. Click Copy to copy the minified HTML.

How It Works

The tool strips HTML comments, collapses multiple whitespace characters to a single space, removes optional closing tags, and optionally minifies inline <style> and <script> blocks. All semantic HTML structure is preserved.

Example

A 40KB HTML page typically minifies to 28–32KB — saving 20–30%. For high-traffic sites, this multiplies across millions of page views into significant bandwidth savings.

FAQ

In general, no. HTML is whitespace-insensitive between tags. The optional-quotes option is the only setting that can occasionally cause issues with older parsers; leave it off if you're unsure.
No. All processing runs entirely in your browser. Your HTML is never transmitted to any server.