CSS/HTML/JS minifier.
Reduce file sizes by stripping comments, whitespace, and dead characters while preserving functionality. Everything runs locally in your browser — nothing is sent to a server.
Lightning Fast Processing
Client-side processing means your code never leaves your browser. Instant results with no server delays.
Advanced Options
Fine-tune compression with detailed options for CSS, HTML, and JavaScript optimization.
Detailed Statistics
See exactly how much space you've saved with comprehensive before/after analytics.
Preserves Functionality
Smart minification that removes only unnecessary characters while keeping your code working perfectly.
Easy Export
Copy to clipboard or download minified files instantly. Perfect for immediate deployment.
File Upload Support
Upload CSS, HTML, or JavaScript files directly for quick batch processing and optimization.
Optimization tips
Remove Unused CSS
Before minifying, remove unused CSS rules and consolidate duplicate styles for maximum size reduction.
Optimize Images & Assets
Combine HTML minification with image optimization and asset compression for best performance.
Use Build Tools
For production apps, integrate minification into your build process with tools like Webpack or Vite.
Enable Gzip Compression
Combine minification with server-side Gzip compression for up to 90% total size reduction.
Best practices for code minification
Before Minifying
- Always keep a backup of your original, readable code
- Remove any unused CSS rules or dead JavaScript code
- Test your code thoroughly to ensure it works correctly
- Consider combining multiple files for better compression
After Minifying
- Test the minified code in different browsers
- Enable server-side Gzip compression for additional savings
- Use performance tools to measure the improvement
- Consider implementing a build process for automation
Performance impact
Frequently Asked Questions
Got questions? We've got answers.
Our minifier supports CSS, HTML, and JavaScript code. It removes unnecessary whitespace, comments, and optimizes code structure while preserving functionality.
Typical file size reductions range from 20-60% depending on your code structure. The tool shows before/after statistics so you can see the exact savings.
No! Our minifier preserves code functionality while optimizing for size. It safely removes only unnecessary elements like whitespace, comments, and redundant semicolons.
Currently, the tool processes one file at a time, but you can quickly minify multiple files by pasting each code block separately.
The current version focuses on minification without source map generation. For production builds with source maps, consider using build tools like Webpack or Vite.
The tool can handle moderately large files (up to several MB), but for very large codebases, we recommend using command-line tools or build systems.
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