What does HTML minification do?

HTML minification removes unnecessary whitespace and comments from HTML code to reduce file size and improve page load times.

Is this HTML minifier free to use?

Yes. This HTML minifier is completely free to use and does not require registration or an account.

Does the tool upload my HTML code?

No. The minification runs entirely in your browser. Your HTML code is not uploaded or stored on any server.

Can HTML minification break my layout?

In rare cases, aggressive whitespace removal can affect layouts. The tool offers safe options to preserve scripts, styles and code blocks.

Home → Tools → Minify HTML

Minify HTML

Reduce HTML size by removing unnecessary whitespace and (optionally) comments. Runs locally in your browser — your code never leaves your device.

Quick stats

Input

0 B

Output

0 B

Saved

Client-side No signup Copy & download

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Input HTML

Paste your HTML here

Options

Collapse whitespace Removes extra spaces/newlines between tags (safe for most HTML). Remove comments Removes  (keeps IE conditionals intact). Preserve <pre> / <code> Avoids breaking formatting inside code blocks. Preserve script/style contents Does not touch inline JS/CSS (recommended). Remove empty attributes (advanced) Removes attributes like class="". Use only if you know what you’re doing.

Tip: If your page uses whitespace-sensitive rendering, disable “Collapse whitespace”.

Minified output

Result appears here

✓

Privacy-friendly

This tool runs entirely in your browser. We don’t upload or store your HTML.

FAQ

Common questions about HTML minification

Is it safe to collapse whitespace?

Usually yes. However, some layouts or inline elements can be whitespace-sensitive. If something looks off, disable “Collapse whitespace”.

Do you modify inline JavaScript or CSS?

No. By default, script and style contents are preserved to avoid breaking functionality.

Does this tool upload my HTML?

No. Everything runs locally in your browser. Your input stays on your device.

Why is “Remove empty attributes” marked advanced?

Removing empty attributes can change behavior in edge cases. Use it only if you know the HTML is safe to modify.