CSS Formatter
Format and beautify CSS code with configurable indentation or compact stylesheets into minified production code.
Run tool
Format, beautify, and clean up cascading style sheets directly in your browser. This tool accepts raw CSS text and structures it with readable indentation, line breaks, and consistent spacing between selectors and declaration blocks. You can customize the indentation level between zero and eight spaces to match your project guidelines, with two spaces selected by default. When you need compact production stylesheets instead of expanded code, switch the mode control from beautify to minify. The minification process strips block comments and collapses unneeded whitespace around colons, semicolons, and curly braces. Blank or whitespace-only inputs evaluate quickly to an empty output without errors. Use this utility to inspect minified third-party stylesheets, prepare clean style blocks for code reviews, or reduce file payload size before deployment. The interface operates cleanly without altering your property values, structural declarations, or rule order.
Instructions
- Paste or type your CSS stylesheet into the CSS input area.
- Specify your desired indentation width as a number between 0 and 8 spaces.
- Select the formatting mode, using beautify for readable styling or minify for compressed output.
- Click the run button to generate the formatted stylesheet in the output panel.
- Copy the formatted CSS directly for your web project or stylesheet file.
Examples
- Expanding minified CSS: Entering `header{margin:0;padding:10px;color:#333;}` with an indent of 2 and beautify mode expands each declaration onto a separate indented line.
- Compressing expanded CSS: Entering a multi-line stylesheet rule with comments and extra spaces using minify mode strips block comments and condenses declarations onto a single compact line.
FAQ
What happens if I submit an empty or whitespace-only CSS input?
An empty or whitespace-only input returns an empty formatted result immediately without processing errors.
What is the maximum stylesheet size allowed?
The tool accepts non-empty stylesheet text of any reasonable size. Very large inputs may take longer to process.
Does minify mode remove CSS comments?
Yes, selecting the minify option removes block comments and collapses surrounding whitespace around selectors, braces, and punctuation.
What indentation levels are supported?
You can select any integer indentation from 0 to 8 spaces. Values outside this range or invalid inputs automatically normalize to 2 spaces.