Is my CSS secure?
Yes. Processing happens locally in your browser with no uploads.
CSS Formatter
Use the free CSS Formatter from FastOnlineTools. Simple, fast and secure directly in your browser.
Last updated: February 14, 2026
How to use
- Paste your CSS code into the input field.
- Click Format.
- Copy the formatted result.
Features
- Automatic indentation and consistent formatting.
- Formats minified CSS into readable blocks.
- Client-side processing for privacy and speed.
Typical use cases
- Optimize code for production
- Debugging and troubleshooting
- Convert data formats
- Check encryption and security
Example
Input (Code)
console.log("Hello World");
Output
Code formatted/converted...
Notes and limitations
- Processes data locally in browser
- No storage on servers
- Performance depends on device
Frequently Asked Questions
Why is my CSS not formatted?
Check for syntax errors such as missing braces, semicolons or invalid selectors.
Can I clean up minified CSS?
Yes. You can paste compact CSS and turn it into a readable structure.
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