💻 CSS Minifier — Compress Stylesheets Instantly
Paste your CSS and get a compact version ready for production. Nothing is uploaded.
Input
Result
Size comparison
Private by design. This tool runs entirely in your browser — nothing you enter or add is uploaded to any server.
How it works
- Paste the CSS you want to compress.
- Press Minify CSS. Comments and extra spaces are removed.
- Copy the smaller result or check the size savings.
Examples
- Reduce a development stylesheet before deploying to production.
- Clean up CSS that has lots of comments and blank lines.
- Compare original and minified sizes for a quick win on page weight.
Frequently asked questions
Is my CSS uploaded?
No. Minification happens entirely in your browser.
Does it change the meaning of the CSS?
It removes comments and unnecessary whitespace while preserving selectors and declarations.
Can it handle large files?
Yes for typical stylesheets. Extremely large files may be slower in the browser.
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