HTML Minifier

Minify HTML to reduce file size

What is an HTML Minifier?

An HTML minifier is a free online tool for reducing the size of HTML files by removing unnecessary whitespace, comments and other characters. This can improve page load speed and reduce bandwidth usage. All minification happens in the browser.

How to minify HTML

Paste your HTML code into the input field. Click the minify button. The tool removes whitespace and comments to produce a smaller output. Copy the result or download the minified file.

How minification works

Minification removes characters that are not needed for rendering HTML: multiple spaces become a single space, HTML comments are removed, line breaks are removed, and CSS and JavaScript can optionally be inlined.

Common use cases

  • Optimize page load speed
  • Reduce bandwidth usage
  • Prepare HTML for production
  • Reduce static file size
  • Optimize server responses

Frequently Asked Questions

What is HTML minification?+
HTML minification reduces the size of an HTML file by removing unnecessary whitespace, comments and optionally inlining CSS/JavaScript. This can improve page load speed and reduce bandwidth usage.
How do I minify HTML?+
Paste your HTML code into the input field. Click the minify button. The tool removes whitespace and comments to produce a smaller output. Copy the result or download the minified file.
Does minification affect HTML functionality?+
No. Minification only removes characters that are unnecessary for rendering. The functionality and appearance of your HTML remain unchanged. However, it may make the code harder to read or debug.
How much can minification reduce file size?+
The reduction depends on the original HTML. Files with lots of whitespace and comments can be reduced by 50-80%. Already compact HTML may see only a small reduction.
Is my HTML sent to a server?+
No. All minification happens locally in your browser. The code never leaves your device.
Can I minify large HTML files?+
Yes. Since minification happens in the browser, it can handle large HTML files. However, very large files (>50 MB) may be slow due to browser memory limits.

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HTML Minifier — free online html minifier, html minify, minify html, html code minification, html size reduction, html optimization, html cleaner, html compression tool. No signup required. Works in your browser.