Developer Tools
CSS Beautifier
Format and beautify minified CSS with proper indentation and spacing.
Beautifies CSS with proper newlines, indentation, and spacing after colons. Perfect for reading minified stylesheets.
Developer Tools
Format and beautify minified CSS with proper indentation and spacing.
Beautifies CSS with proper newlines, indentation, and spacing after colons. Perfect for reading minified stylesheets.
CSS beautification is the process of expanding minified or cramped CSS code into a human-readable format by adding proper whitespace, indentation, and line breaks. A CSS beautifier is an automated tool that applies formatting rules to restructure the code's layout without changing its functionality, making selectors, properties, and values visually clear.
The beautifier parses your CSS input and reconstructs it with logical formatting: opening braces move to new lines or remain inline (depending on style), property-value pairs indent consistently, and selectors are spaced for clarity. It preserves the cascade and specificity of your stylesheets—only the visual structure changes, not the CSS logic itself.
| Input | Result | Notes |
|---|---|---|
| .btn{color:red;padding:10px;margin:5px}.header{background:#fff;font-size:16px} | .btn { color: red; padding: 10px; margin: 5px; } .header { background: #fff; font-size: 16px; } | Minified CSS from a production build is expanded with proper indentation and line breaks |
| @media(max-width:768px){body{font-size:14px}} | @media (max-width: 768px) { body { font-size: 14px; } } | Media queries and nested rules are reformatted for readability |
| h1,h2,h3{color:navy;font-weight:bold} | h1, h2, h3 { color: navy; font-weight: bold; } | Multiple selectors can be split to separate lines for clarity |
No. Beautification only changes whitespace and indentation—it does not alter selectors, properties, values, or the cascade. Your CSS will render identically before and after.
Yes, absolutely. It's useful for standardizing the format of CSS you wrote months ago, or aligning mixed styles across a team project to a single standard.
Most beautifiers will either skip invalid lines, highlight them, or attempt a best-effort format. Always validate your CSS syntax separately if you suspect errors.
Beautify for development and debugging (to read and understand the code); minify for production (to reduce file size). Never ship beautified CSS to users—they'll download larger files with no benefit.
Some beautifiers do; pure CSS beautifiers do not. Check the tool's documentation. If you use a CSS preprocessor, compile it to CSS first, then beautify if needed.
Many beautifiers let you choose. Look for 'Indent Style' or 'Indentation' options in the tool's settings before beautifying.