Developer Tools
CSS Formatter
Format compact CSS into readable rules and declarations directly in your browser.
Output will appear here.
What this tool does
This CSS formatter expands pasted stylesheet snippets into cleaner, indented CSS for review, debugging, and documentation.
Common use cases
Pretty-print compact CSS snippets into readable rules and declarations for editing, debugging, and documentation.
Use CSS Formatter when you are working with copied API payloads, logs, encoded values, config snippets, identifiers, or debugging data and need a quick browser-local check before pasting the result into docs, tickets, tests, or another developer tool.
How to use it
- Paste compact or messy CSS into the input box.
- Review formatted rules, declarations, and line breaks.
- If you need a smaller version next, open CSS Minifier and continue the workflow there.
- Copy the formatted CSS for editing, QA, or documentation.
Example workflow
Paste the CSS rule block or stylesheet snippet, format or minify it, review the declarations, then copy the clean output back into your editor, component, docs, or issue comment.
Privacy note
Client-side only: CSS text is formatted in your browser and is not uploaded.
FAQ
Does the CSS formatter upload my stylesheet?
No. Formatting runs locally in your browser.
What CSS is supported?
It is designed for common pasted CSS snippets and simple stylesheet blocks within the browser text limit.
Can I copy the formatted CSS?
Yes. Use the copy output button after formatting.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.