CSS Validator
Checks brace balance and basic "property: value" declaration syntax. A best-effort sanity check, not a full CSS specification validator.
How it works
Paste CSS into the input panel and click Validate.
Frequently asked questions
- Does this validate against the full CSS specification?
- No — it checks brace balance and that declarations look like "property: value" pairs. It won't catch invalid property names or values, the same limitation as the Code Beautifier.