CSS Formatter / Beautifier
Format & beautify CSS
What Is This Tool?
The CSS Formatter re-indents stylesheets so each selector, declaration and closing brace sits on its own line, making dense or minified CSS easy to read. It can also minify CSS by stripping comments and unnecessary whitespace. Everything runs locally in your browser.
How to Use
Paste your CSS into the input box.
Click Format to indent it, or Minify to compress it.
Review the output panel.
Copy the result or download it as a .css file.
Features
- 2-space indented formatting
- One-click minification
- Removes comments during minification
- Blank line between top-level rules for readability
- Copy to clipboard or download as a file
- 100% client-side — nothing leaves your browser
Examples
Before (minified):
.card{color:#333;padding:10px}
.card .title{font-weight:bold;font-size:18px}
After (formatted):
.card {
color: #333;
padding: 10px;
}
.card .title {
font-weight: bold;
font-size: 18px;
}
Common Use Cases
- Reading minified CSS pulled from a production site
- Reviewing generated stylesheet output
- Minifying stylesheets before deployment
- Preparing readable CSS examples for documentation
Frequently Asked Questions
Is my CSS uploaded anywhere?
No. Formatting and minifying happen entirely in your browser using JavaScript. Nothing is sent to a server.
Does this fully parse CSS like a browser engine?
No. This is a best-effort, brace-aware formatter, not a full CSS parser. It handles standard stylesheets well but can be confused by braces inside string values or url() that contain literal braces - a known, documented limitation.
Does it work with @media and nested at-rules?
Yes, nested blocks like @media queries are indented one level deeper than their surrounding rule, since the formatter tracks brace depth generically.
What does Minify remove?
Minify strips comments and collapses all unnecessary whitespace around selectors, braces, colons and semicolons to reduce file size.
Will formatting change my CSS behavior?
No, only whitespace, line breaks and comments are affected; selectors, property names and values are preserved exactly.
Can I download the result?
Yes, click Download to save the current output as a data.css file.