CSS Formatter & Beautifier - Free Online Tool

A CSS formatter cleans and indents your style sheets. It aligns selectors, properties, and values so you can spot mistakes fast. Use it to review minified CSS, tidy inline styles, or prep code for handoff. Everything runs in your browser, keeping designs private.

1. Paste CSS: Add minified or messy style rules.
2. Format: Click Format to re-indent and clean the stylesheet.
3. Get results: Copy the formatted CSS or download it as a .css file.

• Faster debugging: Clear formatting exposes missing semicolons or braces.
• Cleaner reviews: Share readable CSS with teammates or clients.
• Local privacy: No code leaves your device.

Use case 1: Minified styles

Beautify production CSS to trace selectors during bug hunts.

Use case 2: Design system updates

Format token or utility files before proposing changes.

Use case 3: Email templates

Tidy inline-heavy email CSS to reduce rendering surprises.

Basic example

Input: body{margin:0;padding:0}h1{font-size:24px;color:#333}
Output:

body {
  margin: 0;
  padding: 0;
}
h1 {
  font-size: 24px;
  color: #333;
}

Advanced example

Input: Minified utility class file
Output: Expanded selectors with properties on their own lines, ready for review.

Missing semicolons

If parsing fails, check for missing semicolons between declarations. The formatter highlights the first issue.

Unclosed braces

Unmatched braces break formatting. Add or remove braces until pairs align.

• Keep 2-space indentation to match most CSS guides.
• After formatting, run a linter in your project to enforce naming and vendor rules.
• Pair with the HTML formatter when cleaning templates.

• Format JS with the JavaScript formatter.
• Clean JSON data using the JSON formatter.
• Minify structured data with the JSON minifier when exporting configs.

Formatting happens locally in your browser. No CSS content is uploaded or stored.