CSS Minifier & Compression Tools
Css Analyzer
Analyze CSS for size, rules count, selectors, and properties. Find optimization opportunities. Browser-based, private CSS analysis.
Css Comment Stripper
Remove all comments from CSS files while preserving code. Clean up stylesheets for production. Browser-based, instant processing.
Css Minifier
Minify CSS by removing whitespace, comments, and optimizing code. Reduce file size for faster page loads. Fast, private, works in your browser.
CSS Minification
CSS files accumulate comments, formatting, and whitespace during development. While these improve readability for developers, they increase file size for end users. Minification strips everything unnecessary while preserving functionality.
Optimization Techniques
- Whitespace removal: Eliminates spaces, tabs, and line breaks
- Comment stripping: Removes all CSS comments
- Color optimization: Converts #ffffff to #fff where possible
- Zero units: Removes unnecessary units (0px → 0)
- Shorthand properties: Combines related properties
Safe Minification
Our minifier preserves CSS functionality. Media queries, vendor prefixes, and calc() expressions are handled correctly. The output renders identically to the original—just smaller.
Build Integration
While build tools like PostCSS handle minification in development workflows, our online minifier is useful for quick tasks, one-off optimizations, and situations where you don't have build tool access.