The css formatter works like this: it expands minified CSS into readable rules with aligned declarations and grouped selectors. Everything happens on your device - the input never leaves your tab unless the tool clearly states it performs a server-side lookup.
How to use the CSS Formatter
Paste the input (code, data or query).
Run the operation - formatting and validation are instant.
Read any validation message before trusting the output.
Copy the result into your project.
Features
Instant client-side formatting and validation
No telemetry on your data
Copy-ready output with proper escaping
Common mistakes to avoid
Using the wrong input dialect (JSON vs JSON5, cron 5 vs 6 fields)
Copying output without checking escaping
Examples
Input
Result
.a{color:red;margin:0}
.a {
color: red;
margin: 0;
}
Best used for
Getting a reliable answer for css formatter without installing an app
One-off tasks done in under a minute from any device
Checking results before committing them to something important
Working on a phone where desktop software is unavailable
Privacy
All parsing and transformation happens locally in this tab - your code and data are not sent anywhere.
Frequently asked questions
Does it reorder properties?
No - declaration order is semantically meaningful in CSS (later wins), so the formatter only re-indents.
What does the formatter do to my rules?
It splits minified or compressed CSS back into one declaration per line with consistent indentation and semicolons restored - the reverse of minification, without changing any selector or value.
Are media queries and nested at-rules re-indented properly?
Yes - at-rule blocks get their own indentation level so responsive rules read as clearly as the base styles they override.