CSS Formatter & Minifier – Free Online Tool

Beautify and minify CSS code instantly. Customizable indentation, compress colors, and view compression stats.

Try it Free →

Features

✨

Custom Indentation

Choose 2-space, 4-space, or tab indentation for beautified output.

🗜️

Smart Minify

Compress CSS by removing whitespace, comments, and optimizing color values.

📊

Compression Stats

See exactly how much smaller the minified output is compared to the original.

🔒

Privacy First

All processing is local in your browser. Your CSS never leaves your device.

📋

One-Click Copy

Copy the formatted or minified CSS to your clipboard.

🎨

Color Compression

Automatically compresses color values: #ffffff becomes #fff, rgb(0,0,0) becomes #000.

How to Use

1

Paste Your CSS

Paste or type your CSS code into the input panel.

2

Choose Options

Select indentation style and whether to enable color compression.

3

Format or Minify

Click Format to beautify or Minify to compress your CSS.

4

View Stats & Copy

See the compression percentage and copy the result.

Frequently Asked Questions

What does CSS minification remove?
Minification removes all unnecessary whitespace, line breaks, and comments. It also compresses color values (#ffffff → #fff), shortens font-weight values, and removes trailing semicolons when safe.
Is my CSS sent to a server?
No. All formatting and minification is done locally in the browser using a custom CSS parser. Your CSS never leaves your device.
Does it support CSS nesting?
Yes. Modern CSS nesting syntax is properly handled in both formatted and minified output.

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