Does minifying CSS change how my styles render?
No — only whitespace and comments are removed. Selectors, properties, and values stay identical.
CSS Minifier
CSS Minifier
Compress CSS by removing comments and unnecessary whitespace.
UTF-8 · CSS
About this CSS Minifier
Compress CSS by removing comments and unnecessary whitespace.
Your CSS is processed locally in the browser. Nothing is uploaded or stored.
FAQ
What's the difference between minifying and Gzip compression?
Minifying permanently strips characters from the source; Gzip is a server-side compression layer applied on top during transfer. Use both for maximum savings.
Can I un-minify a compressed stylesheet later?
Yes — paste it into the CSS Formatter to restore readable indentation.
Does it rewrite selectors or just strip whitespace?
Just whitespace and comments — selectors, property names, and values are left untouched. It won't shorten colors or merge duplicate rules; for that level of optimization use a build-tool minifier like Lightning CSS.
Should I minify during development?
No — minify only your production build output; keep readable source files for day-to-day editing.
Is my CSS uploaded anywhere?
No — 100% client-side.
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