Online HTML Minifier & Compressor

Minify and compress HTML; remove comments/whitespace to speed up page loads.

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How to use

Paste or type your input in the left editor
Adjust options in the toolbar if available
Copy or download the output from the right pane

This free online tool runs entirely in your browser. No sign‑up, no server uploads.

About HTML Minify

Minify and compress HTML; remove comments/whitespace to speed up page loads.

The HTML minifier tokenizes the input into elements, attributes, text nodes, and comments. It then removes all insignificant whitespace — spaces between tags, indentation, and blank lines — while being careful to preserve whitespace within <pre>, <textarea>, and inline script/style blocks. Comments are stripped, boolean attributes are shortened, and redundant quotes around simple attribute values are removed to produce the smallest valid HTML output.

Use the left editor to enter your data. The output updates in real time. You can copy, clear, download, or expand either pane.

Tip: Use the search bar to quickly switch between tools.

Sample HTML

<div class="note">Tom & Jerry</div>

Example input shown above. Output appears in the right pane instantly.

Why this tool?

Feature	HTML Minify	Typical alternatives
Free online tool	Yes	Often yes
Client‑side only (privacy)	Yes	Varies
No sign‑up required	Yes	Varies

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FAQs

How much can HTML minification reduce file size?

HTML minification typically reduces file size by 10-30% by removing whitespace, comments, and optional closing tags. Pages with extensive comments, verbose formatting, or large inline styles see the greatest reductions.

Does minifying HTML break JavaScript or CSS within the page?

No. The minifier is aware of <script> and <style> blocks and handles them separately. Whitespace inside string literals and pre-formatted content is preserved, while only insignificant whitespace in the HTML structure is removed.

Does the minifier remove HTML comments?

Yes. All HTML comments () are stripped by default since they serve no purpose in production. Conditional comments used for IE compatibility are detected and can be preserved when needed.

Can I minify HTML for email templates?

You can, but be cautious — some email clients rely on specific whitespace or comment-based hacks for rendering. Test the minified HTML across email clients before deploying to ensure consistent rendering.

Does minification remove optional closing tags?

The minifier can collapse optional whitespace between tags and remove redundant attributes. Optional closing tags like </li>, </td>, and </p> can be removed per the HTML5 specification to further reduce file size.