Minify HTML Online Free (Browser-Based)
Minify HTML (strip redundant whitespace and comments) to lighten your pages, in your browser.
86 → 60 characters (−30%)
Note: preserves conditional comments (<!--[if…). Check <pre>/<textarea> tags.
🔒 100% client-side — no data sent
Compress your HTML files by stripping extra whitespace, line breaks and comments. Lighter HTML downloads faster and improves the user experience. The tool runs entirely in your browser, with no data ever uploaded.
What is it for?
- ▸ Reduce a page's size before publishing it
- ▸ Optimize marketing email HTML for faster delivery
- ▸ Improve the first paint time of a landing page
- ▸ Clean up exported HTML full of comments and indentation
FAQ
Can minifying HTML break my page?
In the vast majority of cases, no: only insignificant characters are removed. Be careful with <pre>, <textarea> tags and inline JavaScript, where whitespace can matter. Always test the minified page.
What's the difference between minifying and compressing (Gzip)?
Minification removes unnecessary characters from the source file, while Gzip or Brotli compress the file during network transfer. The two are complementary and stack for maximum savings.
Is HTML minification good for SEO?
Indirectly, yes. Lighter HTML lowers load time, a factor Google considers (Core Web Vitals). The content and structure stay unchanged, so indexing is not affected.