Does it preserve and blocks?

Yes. Content inside , , , , and tags is preserved as-is.

Tool Fu~ html-minifier

$ toolfu run html-minifier

HTML Minifier — Minify HTML Code Online Free

Minify HTML code online for free. Remove comments, collapse whitespace, and reduce file size instantly in your browser.

all processing runs in your browser

html-minifier

options

input > paste HTML

original: 466 bytes

minified: 344 bytes

saved: 122 bytes (26.2%)

output > minified HTML

<!DOCTYPE html><html><head><title>Example Page</title> <style>
    body { margin: 0;  padding: 0; }
    .container {  max-width: 1200px;  margin: 0 auto; }
  </style> </head><body><div class="container"><h1>Hello World</h1><p> This is a paragraph with extra spaces. </p><ul><li>Item 1</li><li>Item 2</li><li>Item 3</li></ul></div></body></html>

Free HTML Minifier

Minify HTML code to reduce file size. Remove comments, collapse whitespace, and optimize attributes.

Features

Remove HTML comments
Collapse whitespace
Minify inline styles
Before/after size comparison
100% private — runs in your browser

$ cat FAQ.md

What does minification remove?▶

HTML comments, extra whitespace between tags, and optionally: attribute quotes, optional closing tags, and inline style whitespace.

Does it preserve <pre> and <code> blocks?▶

Yes. Content inside <pre>, <code>, <script>, <style>, and <textarea> tags is preserved as-is.

Is my HTML sent to a server?▶

No. Minification runs entirely in your browser using pure JavaScript. Nothing is uploaded.

How much can it reduce file size?▶

Typically 10–30% depending on the HTML structure and whitespace. The tool shows exact before/after byte counts.

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