Web Dev Tools
HTML Minifier
Minify HTML code by removing whitespace, comments, and unnecessary characters. Reduce file size by up to 30% for faster page loads. Perfect for optimizing web pages and email templates.
Use HTML Minifier to get instant results without uploads or sign-ups. Everything runs securely in your browser for fast, reliable output.
Your results will appear here.
About this tool
HTML minification is a crucial web performance optimization technique that removes unnecessary characters from HTML code without changing functionality. By eliminating whitespace, comments, and redundant code, you can reduce file sizes by 20-40%, leading to faster page loads and better user experience.
Page load speed is a critical factor for both user experience and SEO rankings. Google uses page speed as a ranking factor, and studies show that even a 1-second delay can reduce conversions by 7%. Minifying your HTML is one of the easiest ways to improve performance, especially for content-heavy pages.
Our HTML minifier safely removes comments, line breaks, extra spaces, and optional tags while preserving your HTML's structure and functionality. Unlike aggressive minifiers that might break your code, we use conservative minification that works with HTML5, inline scripts, and style tags.
This tool is perfect for production websites, email HTML templates, landing pages, and any scenario where file size matters. All processing happens in your browser, so your code remains private and secure.
Usage examples
Remove Whitespace
Compress multi-line HTML
Before: <div>\n <p>Text</p>\n</div> (26 bytes)\nAfter: <div><p>Text</p></div> (21 bytes)\nSavings: 19%
Remove Comments
Strip HTML comments
Before: <!-- Comment --><div>Content</div>\nAfter: <div>Content</div>\nComments removed
Collapse Spaces
Reduce multiple spaces
Before: <p>Hello World</p>\nAfter: <p>Hello World</p>\nExtra spaces collapsed
Minify Full Page
Compress entire HTML document
Typical savings: 25-40% file size reduction\nFaster page loads and improved SEO
How to use
- Paste your HTML code into the input editor.
- Choose minification options (remove comments, whitespace, etc.).
- Click the minify button to compress your HTML.
- The tool removes all unnecessary characters while preserving functionality.
- Copy the minified HTML for use in your website.
- Compare original vs. minified file sizes to see compression savings.
Benefits
- Reduce HTML file size by 20-40%
- Improve page load speed and performance
- Better SEO rankings from faster pages
- Lower bandwidth costs for high-traffic sites
- Remove all comments and unnecessary whitespace
- Safe minification that preserves functionality
- Works with HTML5, inline CSS, and JavaScript
- No server upload - processes locally for privacy
- Instant results with before/after comparison
- Perfect for production deployment
- Compatible with frameworks and templates
- Essential for web performance optimization
FAQs
What does HTML minification do?
HTML minification removes unnecessary characters like whitespace, line breaks, comments, and optional tags from HTML code without changing how it renders in browsers. This reduces file size and improves load times while keeping all functionality intact.
Will minifying HTML break my website?
No, proper HTML minification is safe and won't break your website. Our minifier only removes characters that browsers ignore anyway (extra whitespace, comments). The HTML structure, tags, attributes, and content remain unchanged. However, if you have JavaScript that depends on whitespace-sensitive parsing, test thoroughly.
How much smaller will my HTML be after minification?
Typical file size reduction is 20-40%, depending on your original code. Well-formatted HTML with lots of indentation and comments can shrink by 40% or more, while already compact HTML may only reduce by 10-15%. The actual savings depend on formatting and comment density.
Should I minify HTML for production websites?
Yes! Minifying HTML is a best practice for production sites. It reduces bandwidth usage, speeds up page loads, and can improve SEO rankings. Major websites like Google, Facebook, and Amazon all minify their HTML. Just keep your original formatted code for development.
Does minification affect SEO?
Minification positively impacts SEO by improving page speed, which is a Google ranking factor. Search engines can crawl and index minified HTML just as well as formatted HTML. The only consideration is that minified HTML is harder for humans to read when viewing source.
What's the difference between minification and compression?
Minification removes unnecessary characters from the source code itself (permanent change). Compression (like Gzip) reduces file size during transfer but the browser decompresses it. Use both together for maximum optimization: minify your HTML, then let your server Gzip compress it.
Can I minify HTML with inline CSS and JavaScript?
Yes, our minifier safely handles HTML with inline <style> and <script> tags. However, for best results, use dedicated CSS and JavaScript minifiers for those portions, as they can apply more aggressive optimization techniques specific to those languages.
Is it safe to paste my HTML code here?
Absolutely! All minification happens entirely in your browser using JavaScript. Your HTML code is never uploaded to any server or stored anywhere. It remains completely private on your local computer.
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