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CSS Minifier
Compress stylesheets to ship less CSS over the wire — without a build tool or a signup.
Keep working with these tools
Your privacy matters
All files are processed locally in your browser. Nothing is uploaded to our servers, so your documents remain private and secure.
Common use cases
- Pasting into WordPress, Squarespace, or Shopify custom-CSS boxes that have character limits
- Reducing CSS payload on landing pages before deploying to Vercel, Netlify, or Cloudflare Pages
- Cleaning up messy exports from Figma, Webflow, or Framer
- Compressing theme CSS for faster first-paint on static sites
- Trimming style blocks for AMP pages where byte budgets are strict
Why CSS Minifier?
clean-css-grade compression running in your browser — the same optimization webpack and esbuild pipelines apply, but available for one-off snippets with no tooling required. Tweak aggressiveness per file rather than inheriting a global config.
CSS Minifier keeps the job narrow: compress stylesheets to ship less css over the wire — without a build tool or a signup. It is built for the small but frequent moments when opening a heavyweight editor, installing a package, or uploading sensitive work to a random service is more friction than the task deserves.