How to use Compress CSS Online
- Paste the CSS you need to process into the input box.
- Compress CSS Online updates the output automatically as you type.
- When it looks right, Copy to save it.
About this tool
Compress CSS Online runs entirely in your browser. Compress CSS Online processes CSS in your browser, applying the transformation to the styles you paste without altering their meaning.
Nothing about your stylesheet is uploaded. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What is Compress CSS Online for?
Compress CSS Online lets you process your input right in the browser, with the result shown instantly and nothing uploaded.
Is Compress CSS Online free to use?
Yes — Compress CSS Online is completely free, with no usage limits.
Does Compress CSS Online upload my data?
No — Compress CSS Online processes everything locally in your browser, so nothing you enter is uploaded or stored.
Does Compress CSS Online support modern CSS syntax?
Yes. Compress CSS Online handles current CSS in your browser and leaves your selectors and values untouched.
Can I use Compress CSS Online without a connection?
Yes — after the first load Compress CSS Online runs entirely offline.