HTML Minify
Compress and optimize your HTML code by removing whitespace, comments, and unnecessary attributes. Reduce file size, improve page load times, and streamline your production HTML. Customize minification options with toggleable controls for inline CSS/JS, boolean attributes, and more.
Minification Options
Basic Minification
HTML Optimization
Additional Options
Inline Code
Safety Options
HTML Input
Minified Output
Recommended Settings
Pro Tips
- •All minification options are enabled by default for maximum compression
- •Use 'Preserve line breaks' when debugging minified HTML to maintain readability
- •Test minified HTML in different browsers before deploying to production
- •Keep original unminified HTML for development and maintenance
Most Popular
All options enabled for production builds, preserve line breaks for debugging
When to Use This Tool
Minify HTML files before deploying to production to reduce bandwidth usage and improve page load times. Smaller files mean faster downloads for users, especially on mobile networks. Every kilobyte saved improves performance metrics and user experience.
Reduce HTML file size to improve Core Web Vitals scores and search engine rankings. Google considers page speed as a ranking factor, and minified HTML contributes to faster Time to First Byte (TTFB) and First Contentful Paint (FCP) metrics.
Compress HTML email templates to ensure they load quickly and avoid size limitations imposed by email clients. Many email providers have file size restrictions, and minified HTML helps templates render faster in recipients' inboxes.
Optimize server-side rendered HTML or static HTML files in SPAs to reduce initial payload size. Minification reduces the amount of data transmitted during the first page load, improving time-to-interactive and overall application performance.
How It Works
Configure minification options by toggling checkboxes for whitespace removal, comments, boolean attributes, and inline code optimization
Paste or type your HTML code into the input textarea on the left side
Click 'Minify HTML' to compress and optimize your code with selected settings
View detailed statistics showing original size, minified size, and percentage saved
Review the minified output in the right panel to ensure it meets your requirements
Copy the minified HTML to clipboard or download it as a .html file
Test the minified HTML in your browser or application to verify functionality
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Pure JavaScript for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
Will minification break my HTML?
No, when used correctly, HTML minification preserves functionality while reducing file size. The tool removes only unnecessary whitespace, comments, and redundant code. However, if your HTML relies on specific whitespace (like <pre> tags or inline formatting), you may want to disable 'Remove whitespace' or enable 'Preserve line breaks'.
Should I minify inline CSS and JavaScript?
Yes, for production builds. Minifying inline CSS and JavaScript removes comments, whitespace, and unnecessary characters, further reducing file size. However, if you use external .css and .js files, minify those separately with dedicated tools for better results.
What's the difference between minification and compression?
Minification removes unnecessary characters from code (whitespace, comments) while keeping functionality intact. Compression (like gzip or Brotli) is applied by web servers during transmission and further reduces file size. Use both for maximum optimization: minify during build, compress during delivery.
Can I undo minification?
Not perfectly. Minification is a one-way process that removes information like formatting and comments. That's why you should always keep your original, unminified HTML for development. Use version control to maintain both versions, or use build tools that automatically minify for production while preserving source files.
How much file size reduction should I expect?
Typically 10-30% reduction depending on your HTML structure. Files with lots of indentation, comments, and whitespace see greater savings. Production frameworks often achieve 20-40% reduction when combining HTML minification with CSS/JS minification and gzip compression.
Should I remove optional closing tags?
It depends. While removing optional tags like </p> and </li> reduces file size, some developers prefer to keep them for clarity and to avoid potential parsing issues in older browsers. Test your minified HTML thoroughly before enabling this option for production use.