CSS Minifier
Compress your stylesheets in one click — comments stripped, whitespace collapsed.
The CSS Minifier removes comments, collapses whitespace and strips redundant spaces around symbols like braces, colons and semicolons to produce compact stylesheets. It reports the original size, minified size and percentage saved so you can see the benefit instantly. Smaller CSS loads faster and is perfect for production builds, themes and embedded styles.
How to use the CSS Minifier
- Paste your stylesheet into the text box at the top.
- Click Minify CSS — comments are stripped and whitespace around symbols is collapsed.
- Review the size statistics, then use Copy Result to copy the minified CSS.
CSS Minifier — FAQs
Is the CSS minifier free?
Yes, completely free with no signup and no limits. Minify as many stylesheets as you want, any time, right here in your browser, making it a quick final step before every production deployment you ship.
Will minified CSS still work the same?
Yes. The tool only removes comments and unnecessary whitespace, and drops the redundant semicolon before a closing brace. Selectors, properties and values are completely untouched, so the styling renders and behaves exactly as it did before minification.
Is my CSS uploaded anywhere?
No. Everything runs locally in your browser with JavaScript. Your stylesheet never leaves your device, so it is completely safe to minify private themes, client work and proprietary design systems without worrying about leaks or exposure.
How much smaller will my CSS get?
It depends on formatting, but heavily commented and indented stylesheets often shrink by 20 to 40 percent. The tool shows the exact original size, minified size and percentage saved after every single run, so you always know exactly what was gained.