CSS Formatter & Minifier
Beautify and minify CSS online. Format your stylesheets with consistent indentation or compress them for production.
What is CSS Formatting?
CSS formatting (beautifying) restructures your stylesheet with consistent indentation, placing each property on its own line and adding whitespace to make the code readable. This helps teams maintain and review stylesheets more easily.
CSS minification removes all comments, whitespace, and newlines to produce the smallest possible file, which reduces page load times and bandwidth costs in production.
How to Use
- Paste your CSS or upload a .css file
- Choose Beautify or Minify
- Select your preferred indent size in Settings
- Copy or download the result
Frequently Asked Questions
Does minifying CSS really improve performance?
Yes. Removing whitespace and comments reduces file size by 20–40% for typical stylesheets, reducing bandwidth and time-to-first-byte.
Will formatting change how my CSS works?
No. Beautifying only changes whitespace, which CSS parsers ignore. Minifying is equally safe as it only removes non-functional characters.
Are CSS comments preserved?
In Beautify mode, comments are preserved. In Minify mode, all /* */ comments are removed as they serve no functional purpose.
Does it support modern CSS features?
Yes — custom properties (variables), CSS Grid, Flexbox, @media queries, @keyframes, @supports, and all modern CSS syntax.
Is my CSS sent to a server?
No. All formatting happens locally in your browser using JavaScript string processing.