HTML Minifier — Minify HTML Code Online
Minify HTML code by removing comments, extra whitespace, optional tags, and collapsing whitespace. Reduce file size and improve page load performance. 100% client-side — nothing is sent to any server.
How to Use the HTML Minifier
- Paste your HTML code into the left textarea.
- Configure options — toggle comment removal, whitespace collapsing, optional tag removal, and attribute quote removal.
- Click Minify to compress your HTML. The output updates in real-time.
- Check savings — the tool shows the size reduction percentage.
- Copy output with the button or clipboard icon.
Why Use This Tool
HTML minification reduces file size by 10-30% on average, directly improving page load speed and reducing bandwidth usage. This is especially impactful for mobile users and visitors on slow connections.
The tool removes HTML comments, collapses whitespace between tags, strips optional closing tags
(like </li>, </p>), and can optionally remove attribute quotes
where safe. All processing happens in the browser — your source code never leaves your device.
Frequently Asked Questions
No. The minifier preserves all essential HTML structure, attributes, and content. It only removes safe-to-remove elements like comments and whitespace. Optional tag removal follows HTML5 spec rules and won't break rendering in modern browsers.
Yes. Keep your development HTML readable with comments and whitespace. Use minification in production builds or before deployment. Many build tools (Webpack, Vite, Gulp) can automate this step.
This tool focuses on HTML structure. It removes HTML comments and whitespace but does not minify inline <style> or <script> contents. For those, use dedicated CSS/JS minifiers as part of your build pipeline.
Use Cases
Production Deployment
Minify HTML before deploying to production to reduce load times and improve Core Web Vitals scores.
Email Templates
Reduce email HTML size to improve deliverability and rendering speed across email clients.
CDN Optimization
Smaller HTML files mean faster CDN edge delivery and reduced origin server bandwidth costs.
SEO Improvement
Faster page loads contribute to better search engine rankings and improved user experience metrics.