CSS Minifier & Beautifier
Optimize your CSS code with advanced minification and beautification features. Format, validate, and compress CSS with error detection and syntax highlighting.
Input CSS
Formatted Output
How to Use CSS Minifier & Beautifier
Input Your CSS
Paste your CSS code into the input textarea, upload a CSS file, or use the paste button to get CSS from your clipboard.
Choose Action
Select from beautifying (formatting) to make CSS readable, minifying (compressing) to reduce file size, or validating for error checking.
Customize & Export
Adjust formatting options, copy the result to your clipboard, or download as a file with your preferred settings.
Key Features
- Advanced Formatting: Customize indentation, line breaks, and spacing with granular control over output format
- Intelligent Minification: Reduce file size by up to 70% while preserving functionality and browser compatibility
- Error Detection: Identify syntax errors, missing semicolons, and invalid properties with detailed error messages
- File Operations: Upload CSS files and download formatted results with proper file extensions
- Compatibility Modes: Optimize for modern browsers or legacy support including IE7+
- Color Optimization: Automatically convert colors to their shortest representations (hex, rgb, hsl)
Common Use Cases
Production Optimization
Minify CSS files for production websites to improve loading speed and reduce bandwidth usage.
Code Readability
Beautify compressed or poorly formatted CSS to improve readability during development and debugging.
Legacy Support
Format CSS with compatibility options for older browsers while maintaining modern development practices.
Team Collaboration
Standardize CSS formatting across team projects for consistent code style and easier collaboration.