CSS Minifier
Minify and compress CSS to reduce file size, or beautify minified CSS back to readable format. Free online CSS minifier.
1 lines0 bytes
About CSS Minifier
Reduce your CSS file size by stripping whitespace, comments, and redundant characters — or beautify minified CSS back to human-readable format. Minified CSS loads faster and reduces bandwidth. All processing happens in your browser with no upload required.
css minifierminify csscss compressorcompress css onlinecss beautifiercss formatteronline css minifier freereduce css file size
Your privacy is built in
Everything in CSS Minifier runs locally in your browser — your data never leaves your device and is never uploaded to a server, so nothing you enter is stored or seen by anyone else. No account, no sign-up, no watermark, and completely free.
Frequently asked questions
What does CSS minification do?
It removes all unnecessary whitespace, newlines, comments, and redundant semicolons — reducing file size without changing how the CSS works.
Is minified CSS safe for production?
Yes! Minified CSS is functionally identical to the original. Only formatting is removed, not functionality.
Can I also format/beautify CSS?
Yes! Switch to Beautify mode to format compressed or minified CSS into readable, indented code.