CSS Minifier
Shrink stylesheets for production with browser-only processing and instant output.
CSS Minifier
Processed entirely in your browser. No uploads, no background processing, and no account required.
Ctrl+Enter Minify Ctrl+Shift+Enter Beautify Ctrl+Shift+C Copy
CSS input Editable input
1 line | 0 chars | 0.0 KB
Minified or beautified CSS Read only output
1 line | 0 chars | 0.0 KB
Ready Browser only
Paste content into the input editor and run an action.
How ZeroData protects your privacy
- ✓ No Uploads: Processing happens entirely via client-side JavaScript.
- ✓ No Storage: We do not have a database. We physically cannot save your data.
- ✓ No Tracking: We don't log what you process or track your inputs.
- ✓ Verifiable: Check your DevTools Network tab. You will see 0 outbound requests.
How to Use the CSS Minifier
- Paste CSS into the left editor.
- Use Minify to remove comments and extra whitespace.
- Use Beautify when you need to expand dense CSS back into a readable block format.
- Copy or download the result for deployment or debugging.
Frequently Asked Questions
Does this CSS minifier upload my stylesheet?
No. The minifying and beautifying logic runs entirely in your browser.
Can I use it to inspect minified vendor CSS?
Yes. The Beautify action expands compressed CSS into a more readable layout.
Will it change my selectors or values?
It removes comments and normalizes whitespace, but it does not intentionally rewrite selectors or declarations.