Free HTML Minifier Online — Compress & Optimize HTML Code

Remove comments Collapse whitespace Remove optional quotes Remove empty attributes Lowercase tag names

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About This Tool

The free HTML minifier strips whitespace, HTML comments, and optional attributes from your HTML code to reduce file size and improve page load speed. Smaller HTML means faster Time to First Byte and better Core Web Vitals scores. Size reduction and byte savings are shown after every minification.

Common Use Cases

Optimizing HTML for production deployment
Reducing page load times
Improving Google PageSpeed scores
Minimizing CDN bandwidth costs
Pre-processing HTML in build pipelines

Frequently Asked Questions

Is minified HTML valid HTML?

Yes. Minified HTML removes non-essential whitespace and optional tags while maintaining perfectly valid, browser-renderable markup.

How much can HTML minification reduce file size?

Typically 10-30% for hand-written HTML. Heavily commented HTML can see 40-60% reductions.

Should I minify HTML in production?

Yes. Always keep a non-minified source for development. Combine with gzip/Brotli compression for maximum benefit.