🎨

CSS Formatter

Format and validate CSS

cssformat

Tool

Pretty print CSS, validate syntax, and check for errors.

Input CSS

Output CSS

About this tool

Type

formatter

Input

code

Output

code

Features

✓ Free to use
✓ No registration required
✓ No file size limits
✓ Fast processing
✓ Secure & private

What is CSS Formatter?

CSS Formatter beautifies compressed or poorly formatted CSS code, adding proper indentation, line breaks, and consistent spacing. Clean CSS is easier to read, debug, and maintain — making this tool invaluable for web developers working with vendor stylesheets or minified code.

How to Use CSS Formatter

1Paste your CSS code (minified or unformatted) into the input box.
2Select your preferred indentation style.
3Click "Format CSS" to produce properly structured output.
4Copy the result or download it as a .css file.

Common Use Cases

→Making minified CSS from CDN libraries human-readable for debugging.
→Standardising CSS style across a development team.
→Reformatting CSS exported from design tools like Figma or Sketch.
→Cleaning vendor-provided stylesheets before editing.
→Preparing CSS for code reviews with consistent formatting.

Frequently Asked Questions

Does formatting change how the CSS works?

No. Only whitespace is added. The rendered styles in the browser are completely unchanged.

Does it support CSS variables and modern syntax?

Yes. Custom properties (variables), media queries, keyframes, and all modern CSS features are supported.

Can it also minify CSS?

Check the JSON Minifier and other code tools for minification. The CSS Formatter focuses on beautification.

Does it detect CSS errors?

Basic syntax issues are highlighted. For full CSS validation, use a dedicated validator.