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What is HTML Minifier?
Minify HTML to reduce page weight and improve load performance. Our HTML Minifier removes whitespace between tags, strips comments, and collapses unnecessary attributes while preserving all functionality. Also beautifies minified HTML back to readable form.
Key Features
How to Use HTML Minifier
Paste your HTML code
Select minify or beautify
Click Submit to optimize
Copy the result for use in your project
Common Use Cases
Tips & Best Practices
HTML minification has smaller gains than CSS/JS minification — focus on images and scripts for bigger wins
Use the beautify mode to understand third-party or CMS-generated HTML
Preserve whitespace inside <pre>, <code>, and <textarea> tags — our tool handles this automatically
Frequently Asked Questions
Is it safe to remove HTML comments?
Yes for production — comments add weight with no user benefit. Keep a copy of your original with comments for development.
Does it minify inline CSS and JS?
Yes — inline <style> and <script> blocks are also compressed as part of full HTML minification.
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HTML Minifier is part of our Developer Tools tools collection at AllInAOne. Use our free online tools for all your developer tools needs — no registration required.