Free CSS Formatter Online
Format readable CSS locally in your browser. This lightweight formatter does not perform full CSS validation.
CSS stays in your browser.
Private: your files are processed in your browser and are never uploaded to our server.
How to use
- Paste CSS into the input.
- Choose Format CSS to indent rules and declarations.
CSS Formatter
Format basic CSS blocks and declarations for readability.
This formatter is intentionally lightweight; it does not parse every CSS edge case or validate browser support.
Frequently asked questions
Does it validate CSS?
No. It adjusts whitespace for readability but is not a standards validator.
Is input uploaded?
No, formatting happens in your browser.