Does it change CSS behavior?

It uses conservative whitespace and comment removal to preserve valid CSS behavior.

Does it validate CSS?

It catches basic unmatched braces and string issues before minifying.

Developer Tools

Compress CSS snippets locally, review byte savings, and download a .min.css file.

Source

Minified

Before

0 B

After

0 B

Saved

CSS Minifier compresses CSS snippets and shows size savings.

Paste CSS, minify it, then review byte savings, copy the output, or download a .min.css file.

The browser removes comments and unnecessary whitespace while keeping strings and common CSS syntax intact.

CSS input is processed locally and never uploaded.

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