Minify CSS code by removing whitespace, comments, and optimizing selectors. Reduce CSS file size for faster stylesheet loading and improved page performance.
CSS minification removes unnecessary characters from stylesheets including whitespace, comments, and redundant semicolons, while also optimizing property values (e.g., #ffffff → #fff). Minified CSS reduces file size by 25-50%, significantly improving page load times as CSS is render-blocking.
Size Reduction = (Original Size - Minified Size) / Original Size × 100%CSS minification achieves size reduction through multiple techniques: removing comments and whitespace, shortening color values, merging identical selectors, removing redundant semicolons and units (0px → 0), and optimizing shorthand properties. Typical reduction is 25-50%.
| Input | Output |
|---|---|
| body { margin: 0; padding: 0; /* Reset */ font-family: Arial; } | body{margin:0;padding:0;font-family:Arial} |
| .container { background-color: #ffffff; margin: 0px; padding: 10px 10px 10px 10px; } | .container{background-color:#fff;margin:0;padding:10px} |
| h1 { color: red; } h2 { color: red; } | h1,h2{color:red} |