Minify CSS for production or beautify minified stylesheets for debugging — auto-detects mode, shows live byte savings and line count diff.
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Minification removes whitespace, comments, and unnecessary characters from CSS without changing how it works in the browser. The result is a smaller file that loads faster.
Typically 20–50% smaller. CSS with lots of comments and whitespace will see bigger gains. Programmatically generated CSS with minimal formatting may see less reduction.
Beautification is the reverse of minification — it adds indentation, line breaks, and consistent spacing to make minified or messy CSS human-readable again.
Auto-detect analyses your input CSS and automatically applies the opposite transformation: if it detects minified CSS (very few line breaks), it beautifies it; if it detects formatted CSS, it minifies it.
No. Minification only removes insignificant characters. All selectors, properties, and values are preserved exactly. Your styles will behave identically in the browser.
Yes. All processing happens entirely in your browser using JavaScript. Your code is never uploaded to any server.