Compress and minify CSS code to decrease load sizes.
How to Use CSS Minifier
Paste your full CSS stylesheet into the input box.
Click "Minify" to strip comments, whitespace, and line breaks in one pass.
Copy the single-line minified CSS and drop it into your production build.
Key Features & Practical Use Cases
Compressing bulky CSS stylesheet files to reduce total page weight and improve loading speeds.
Stripping unwanted whitespace, comments, and line breaks from CSS frameworks before deployment.
Obfuscating CSS code structure slightly to prevent easy copying of custom styling.
Frequently Asked Questions
Does minifying break CSS custom properties or media queries?
No - variables (`--my-var`), `@media`, and `@keyframes` blocks are preserved correctly, only the formatting is compacted.
How much smaller will my file get?
It depends on how much whitespace/comments your source has - typical hand-written CSS shrinks 15–30%.
Should I keep the original, unminified file?
Yes - always keep your readable source CSS for editing, and use the minified output only for production/deployment.
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