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About CSS Minifier & Formatter
Free online CSS minifier and formatter tool. Beautify, compress, and optimize CSS code. Remove unnecessary whitespace and comments, reduce file size, and improve webpage loading speed.
CSS ToolsCode FormatterFrontend Development
User Guide
Key Features
- CSS compression, formatting, and syntax validation tool — beautify, minify, and verify your CSS
- Three modes: Format (clean up indentation), Minify (strip comments & whitespace to shrink size), and Validate (check syntax)
- Set indent size or toggle comment/whitespace removal, then copy or download the result
How to Use
- Open the tool page — no installation needed
- Pick a mode (Format, Minify, or Validate), paste your CSS or click "Load Sample", and adjust the options
- Click the mode's button to process the code, then copy or download the output on the right
Important Notes
- This tool is completely free and requires no sign-up
- Everything runs locally in your browser — your data never leaves your device
Frequently Asked Questions
What is CSS Minifier & Formatter?
Free online CSS minifier and formatter tool. Beautify, compress, and optimize CSS code. Remove unnecessary whitespace and comments, reduce file size, and improve webpage loading speed.
How do I use CSS Minifier & Formatter?
Open the tool page — no installation needed Pick a mode (Format, Minify, or Validate), paste your CSS or click "Load Sample", and adjust the options Click the mode's button to process the code, then copy or download the output on the right
What should I know before using CSS Minifier & Formatter?
This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device
Is CSS Minifier & Formatter free to use?
Yes, CSS Minifier & Formatter is completely free. No download or installation required — it runs right in your browser.