Format and minify CSS locally.
Clean up compact CSS snippets or compress readable CSS for quick debugging and sharing.
Workspace
Format or minify CSS locally.
This lightweight formatter is best for snippets and ordinary CSS, not full parser-level rewrites.
Output
Formatted or minified CSS will appear here.
About this CSS formatter
Use this CSS formatter and minifier to clean up small stylesheet snippets or compress readable CSS during quick debugging.
Common use cases
- Format compact CSS copied from examples or browser output.
- Minify small snippets for tests, demos, or inline examples.
- Make style declarations easier to scan while debugging.
How to use this tool
- Paste a CSS snippet into the input editor.
- Choose Format for readability or Minify for compact output.
- Review the result before using it in production code.
Example
Input
.card{display:grid;gap:12px}Output
.card {
display:grid;
gap:12px;
}Common errors
- This lightweight formatter is best for snippets, not full production stylesheet rewrites.
- Malformed braces or comments can produce confusing formatted output.
- Advanced CSS syntax should be verified with a parser-based formatter before production use.
Privacy note
Dev Atlas keeps this tool local in your browser. Your input is not intentionally uploaded to a Dev Atlas server for processing.
FAQ
Is this a full CSS parser?
No. It is a lightweight snippet formatter and minifier.
Will it preserve every advanced CSS edge case?
For production formatting, verify with a parser-based formatter.
Does it upload CSS?
No. Formatting runs in the browser.