HTML Minifier
Minify HTML online — removes comments, collapses whitespace, and strips redundant characters to reduce file size. Free, instant, runs in browser.
What Is HTML Minification?
HTML minification reduces the size of HTML files by removing unnecessary whitespace, comments, and redundant characters without changing the rendered output. Smaller HTML means faster page loads, lower bandwidth costs, and better Core Web Vitals scores.
How to Use
- Paste your HTML into the input textarea
- Toggle minification options as needed
- Click Minify HTML to process, or watch it update live
- Click Copy to copy the minified HTML to clipboard
Features
- Remove HTML comments (preserves IE conditional comments)
- Collapse whitespace and remove inter-tag spaces
- Remove unnecessary attribute quotes for simple values
- Shows original size, minified size, and compression percentage
- All processing runs locally — your HTML never leaves the browser
FAQ
Will minification break my HTML?
Standard minification (whitespace collapse and comment removal) is safe for all valid HTML. The "remove attribute quotes" option is safe for simple values but use caution with values containing spaces or special characters.
Are inline scripts and styles minified too?
This tool minifies the HTML structure only. For inline <script> or <style> blocks, use our dedicated JS/CSS minifier tools.
Does this preserve conditional comments?
Yes. IE conditional comments (<!--[if IE]>) are preserved even when "Remove comments" is enabled.
Is my HTML data private?
Completely. All processing runs in your browser using JavaScript. No data is sent to any server.