Minify CSS
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Privacy: This tool runs entirely in your browser. Nothing is uploaded to ITCOH.
Shrink CSS without leaving the tab
A simple minifier that strips comments and unnecessary whitespace. It is not a full CSS parser — complex constructs are usually fine, but always verify critical stylesheets.
Frequently asked questions
Is CSS uploaded?
No. Minification runs in your browser with JavaScript.
Does it rewrite selectors?
No. It only removes comments and compresses whitespace around common punctuation.
Safe for production?
Good for quick size checks. For critical builds prefer a dedicated toolchain (cssnano, esbuild, etc.).
What about calc() and strings?
Whitespace inside quoted strings is preserved when not matched by our punctuation rules; still spot-check edge cases.