CSS Prettifier
Format and beautify your CSS code with proper indentation, syntax validation, and error highlighting.
Input CSS
0 characters
Formatted Output
Ready
What is a CSS Prettifier?
A CSS prettifier (also called a CSS formatter or beautifier) is an online tool that transforms minified or poorly formatted CSS code into a clean, human-readable format with proper indentation and line breaks. Our CSS prettifier helps you maintain clean stylesheets and offers minification for production use.
CSS (Cascading Style Sheets) is the stylesheet language used to describe the presentation of web pages. While minified CSS reduces file size, it's difficult to read and maintain. A CSS formatter makes your stylesheets organized and professional, improving code quality and team collaboration.
How to Use the CSS Formatter
1. Paste your CSS code into the input editor on the left
2. Click "Prettify" to beautify with proper indentation (2, 4, or 8 spaces)
3. Use "Minify" to compress CSS for production deployment
4. Toggle "Preserve comments" to keep or remove CSS comments
5. Click "Download" to save the formatted output as a .css file
💡 All processing happens in your browser—your data never leaves your device.
Common Use Cases
• Production Optimization
Minify CSS files to reduce file size and improve website loading speed
• Code Review & Collaboration
Format team stylesheets with consistent indentation for better readability
• Debugging Minified Styles
Beautify minified CSS from CDNs or production sites for troubleshooting
• Learning & Education
Study well-formatted CSS examples to understand styling best practices
• Framework CSS Cleanup
Format CSS generated by frameworks or build tools for better maintainability
Key Features
✓ CSS3 Support
Formats modern CSS including CSS3 properties
✓ Beautify & Minify
Format for readability or compress for production
✓ Comment Control
Choose to preserve or remove CSS comments
✓ Download Output
Save formatted CSS as a file
Frequently Asked Questions
Is my CSS code safe and private?
Yes! All CSS processing happens entirely in your browser using JavaScript. Your data never leaves your device and is not sent to any server. This makes our tool safe for formatting proprietary stylesheets.
Does it work with SCSS and LESS?
Our tool primarily formats standard CSS. While it can beautify SCSS and LESS syntax to some extent, it works best with plain CSS. For full SCSS/LESS support, use their respective dedicated formatters.
Can I use this to optimize CSS for production?
Yes! The minify feature removes all unnecessary whitespace, comments, and formatting to reduce file size. This is perfect for production deployments where smaller CSS files improve page load times.
Will it fix CSS syntax errors?
Our tool focuses on formatting, not fixing syntax errors. It will format valid CSS but won't automatically correct mistakes like missing semicolons or unclosed braces. Use it after ensuring your CSS is syntactically correct.