Free tool
DeveloperCSS Formatter
Beautify minified CSS into readable rules and declarations. Catch typos and specificity issues faster during reviews and labs.
Runs in your browser — your data stays on your device
Free toolOne-line stylesheets hide missing braces and duplicate properties. This free CSS formatter pretty-prints rules in your browser so frontend developers and students can inspect styles during coding practice—without installing an editor plugin. Paste minified CSS from a build output or an API-delivered theme and read it like a human.
How to use the CSS Formatter
- 1
Paste minified or messy CSS.
- 2
Choose 2-space or 4-space indentation.
- 3
Copy the formatted stylesheet once the output looks correct.
Why pretty CSS improves debugging
When a button colour fails in a lab, formatted CSS lets you scan declarations vertically. We teach students to format first, then reason about cascade—exactly the habit that prevents endless “add !important” cycles.
CSS formatter with examples
Paste the minified card example, pick 2-space indent, and watch selectors and properties align. That readable CSS is what most teams paste into tickets and pull requests.
Guides and next steps
Privacy note
CSS formatting runs entirely in your browser. Your stylesheets never leave your device.
Frequently asked questions
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