How to use CSS Cleaner
- Start by adding the CSS you want to format into CSS Cleaner.
- Adjust the Mode option to match what you need.
- Hit Clean CSS — the formatted output appears below at once.
- Use Copy to keep or reuse the result.
About this tool
CSS Cleaner runs entirely in your browser. CSS Cleaner processes CSS in your browser, applying the transformation to the styles you paste without altering their meaning.
Modern CSS syntax is preserved so your selectors and values come back intact. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
What is CSS Cleaner for?
Use CSS Cleaner to format your input without installing anything using the Mode control; everything happens client-side.
Do I need an account for CSS Cleaner?
No — CSS Cleaner needs no account, sign-up or installation.
Is my input private in CSS Cleaner?
Yes — your input never leaves your device; CSS Cleaner does all the work in your browser.
Does CSS Cleaner support modern CSS syntax?
Yes. CSS Cleaner handles current CSS in your browser and leaves your selectors and values untouched.
Can I use CSS Cleaner without a connection?
Yes — after the first load CSS Cleaner runs entirely offline.