DevTulz Online

HTML Minifier

Minify your HTML code online to reduce file size and improve website performance. Paste your HTML below and click "Minify" to get the compressed version. This tool works entirely in your browser and does not send your data anywhere.

Need to format HTML instead? Try our HTML Formatter.

HTML Minifier & Compressor

What is HTML Minification?

HTML minification removes unnecessary characters from HTML — whitespace, comments, and redundant attributes — to reduce the file size delivered to the browser. Smaller HTML means faster download times, especially for users on slow connections. A typical HTML file can see 10–30% reduction from minification. Build tools and CDN platforms often minify HTML automatically, but this tool lets you manually minify and inspect the output or process HTML snippets not in a build pipeline.

How to Use the HTML Minifier Tool

  1. Paste your HTML code into the input box.

  2. Click 'Minify HTML' — the compressed output appears with whitespace and comments removed.

  3. Review the size difference shown in the stats.

  4. Copy the minified HTML for use in production templates or inline content.

This HTML minifier runs entirely in your browser — no data is sent to any server. Removes whitespace, HTML comments, and redundant attributes. Preserves script and style tag contents. Useful for optimising email templates, landing pages, and any HTML that isn't processed by a build tool.

Frequently Asked Questions

Will minifying HTML affect page rendering? Generally no. Whitespace between block-level elements is insignificant to rendering. However, whitespace between inline elements (like text within a <p> containing multiple <span> tags) can introduce small layout changes in some cases. Always verify critical inline layouts after minification.

Should I minify HTML in a build tool or manually? Use a build tool (webpack, Vite, or a CDN with auto-minification) for production websites — it's automated, consistent, and integrated into deployment. This tool is useful for one-off minification, email templates, and HTML snippets outside a build pipeline.

Does HTML minification include CSS and JavaScript in the page? This tool minifies the HTML markup only. Inline CSS inside <style> tags and JavaScript inside <script> tags may have basic whitespace removed, but for proper CSS and JS minification use dedicated CSS and JavaScript minifier tools.

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