A CSS formatter is a free online tool that expands compressed, single-line CSS into readable multi-line rules with consistent indentation. Paste minified stylesheet code and get clean declarations you can read, edit, and debug.
Your formatted CSS will appear here...
How do I format CSS online?
Paste your CSS into the input box and press Format. Compressed rules expand so each selector opens a block, every declaration gets its own indented line, and closing braces sit on their own lines. Press Copy output to use the readable stylesheet.
This formatter handles the everyday shapes of real stylesheets: multiple selectors, nested @media blocks, comments, quoted strings, and url() values including data URIs. Strings are protected first, so braces or semicolons inside content values are never mistaken for structure.
Will formatting change my styles?
No. Formatting only changes whitespace and line breaks: selectors, properties, values, and cascade order stay exactly the same, so the rendered page is unaffected.
Because only insignificant whitespace changes, you can safely format third-party or minified CSS before debugging it. If you need the compact version again for production, pair this with a minifier afterward.
Frequently asked questions
Is this CSS formatter free?
Yes. Format unlimited CSS with no account and no limits. It runs entirely in your browser.
Does it handle @media queries?
Yes. At-rules like @media are treated as blocks and their inner rules are indented one extra level, so nested structure stays clear.
What happens to comments?
Comments are preserved and placed on their own lines. Multi-line comments keep their content intact.
Can it unminify a whole stylesheet?
Yes. Paste an entire minified .css file and it will expand every rule. Very large files may take a moment since everything runs locally.
Is my CSS uploaded anywhere?
No. Formatting happens locally in your browser. Your code never leaves your device.