CSS Formatter & Minifier
Beautify, minify, and validate CSS — directly in your browser. Syntax highlighted output with zero data sent to any server.
How to Use the CSS Formatter
Paste Your CSS
Paste raw, minified, or messy CSS into the Input panel. You can also load the built-in sample to try it out right away.
Format or Minify
Click Format to beautify with proper indentation, or Minify to produce a compact, production-ready single line.
Validate & Sort
Click Validate to check brace balance. Enable Sort Properties to keep declarations alphabetically ordered.
Copy or Download
Copy the output to clipboard or download it as a .css file — ready to drop straight into your project.
About this Tool
100% Private
All CSS processing happens in your browser using JavaScript — your code is never uploaded to any server. Safe for private or production stylesheets.
Minify Savings
The minifier removes comments, whitespace and redundant semicolons. The status bar shows exactly how many bytes you save — great for optimising page load time.
What is CSS?
CSS (Cascading Style Sheets) controls the visual presentation of HTML. Well-formatted CSS is easier to maintain, debug, and collaborate on with your team.