CSS Minifier
Remove whitespace, comments and unnecessary characters from CSS. Live byte savings report. Instant minification.
Minified CSS will appear here.What powers the CSS Minifier
Comment removal
Whitespace stripping
Live byte savings report
Preserves CSS validity
One-click copy minified
Why the CSS Minifier is different
Browser-native
The CSS Minifier runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Production build optimization
- CDN delivery size reduction
- CMS theme file shrinking
- Email template CSS
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.