What is CSS Formatter?
Got messy, minified, or poorly indented CSS? Paste it in and watch it transform into clean, beautifully formatted code. Our CSS Formatter automatically handles indentation, line breaks, and syntax highlighting. Choose your preferred style — 2 spaces, 4 spaces, or tabs — and toggle between beautify and minify modes. It runs entirely in your browser, so your CSS never touches a server. Perfect for reviewing someone else's code, cleaning up production CSS for debugging, or just making your stylesheets easier to read.
Use Cases
- ◆Beautifying minified CSS for code review and debugging
- ◆Standardizing team CSS coding style (indentation and line breaks)
- ◆Minifying CSS to reduce file size and speed up page loads
- ◆Formatting example code when learning CSS syntax
- ◆Quickly cleaning up CSS files before code review
How to Use
- 1Paste your CSS code into the input area
- 2Choose your indent style (2 spaces, 4 spaces, or tabs)
- 3Click "Beautify" or "Minify"
- 4Review the formatted output and copy with one click
Features
- ✓Completely free, no signup needed
- ✓Browser-based processing, code never uploaded
- ✓Smart indentation and auto line breaks
- ✓Beautify and minify modes
- ✓Customizable indent style
- ✓Live syntax highlighting preview
- ✓One-click copy of formatted output
- ✓Responsive design, works on mobile
FAQ
Will formatting change how my CSS works?
No. Formatting only adjusts whitespace, line breaks, and indentation. It does not alter any CSS rules, selectors, or properties. The output is functionally identical to the input.
Does it support Sass or Less?
It handles standard CSS. For Sass/Less, compile them to CSS first, then use this tool to format the output.
Is my CSS code uploaded anywhere?
Nope. Everything runs in your browser. Your CSS never leaves your device.
How large a CSS file can it handle?
It works with files ranging from a few KB to several MB. Very large files might take a few seconds, but everything processes fine.
Is this tool free?
Yes — completely free. No accounts, no paywalls. Just open the page and go.
Does my data get sent to a server?
No. Everything runs in your browser. Your data never leaves your device.