Performance

HTML Minifier

Paste your HTML to minify it (strip comments and whitespace between tags) — or switch to Unminify to beautify minified HTML back into readable, indented markup.

We strip comments and collapse whitespace to shrink your file.

What is an HTML minifier?

An HTML minifier strips comments and collapses whitespace between tags so the page is smaller and loads faster — without changing how it renders. This online html code minifier is instant and free, no signup.

Minify or unminify HTML

Use Minify to shrink markup for production, or Unminify to unminify html — re-indenting minified markup back into readable form. The built-in html beautifier is handy for reading or editing compressed output.

Why HTML minification matters

Smaller HTML downloads faster and helps page speed and Core Web Vitals. It's a quick win for static pages, email templates and server-rendered output.

How to use the HTML minifier

  1. Pick Minify or Unminify.
  2. Paste your HTML.
  3. Click the button and copy the result.

More performance tools

Pair this with our CSS Minifier, JS Minifier, Page Speed Test and the full free SEO tools suite.

Frequently asked questions

An HTML minifier strips comments and collapses the whitespace between tags so the page is smaller and loads faster, without changing how it renders. Paste your markup and this HTML minifier returns a compact, production-ready version.
Switch to the Unminify tab, paste your minified HTML, and run it. We re-indent the tags and add line breaks so the markup is readable again — an HTML beautifier built into the same tool.
No. It removes comments and redundant whitespace between tags, which doesn't affect rendering for typical pages. Whitespace-sensitive content (like <pre> or some inline-element layouts) should be reviewed, but standard markup is safe.
Smaller HTML downloads faster and improves page speed — a quick win for static pages, email templates, and server-rendered output.
Completely free and online, with no account required. Both minify and unminify are included. It's part of WebsiteAuditTools' free suite of performance tools.