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Free tool
CSS Minifier
Paste your CSS to strip comments and unnecessary whitespace and get a smaller file. Runs entirely in your browser — nothing is uploaded anywhere.
Input is capped at 200,000 characters. This does structural minification (comments and whitespace removed) — it doesn't rename or restructure selectors, so the output stays safe to review and diff.
Need a real front-end build pipeline?
We set up proper bundling, minification and CI/CD — not just a one-off paste-and-copy tool.