Online CSS Unminifier and Code Beautifier
Paste your messy, minified, or compressed CSS code here to instantly format it into clean, readable syntax. This lightweight beautifier automatically fixes indentation and spacing for quick debugging and editing.
CSS Formatting Features
One-Click Formatting: Paste minified CSS and hit Format; readable code appears instantly
Auto-Indent: Proper 2-space indentation applied to every rule and declaration
Smart Spacing: Correct spaces after colons and commas, no extra whitespace
One-Click Download: Save your formatted CSS as style.formatted.css directly
Syntax Highlighting: Color-coded CSS editor for comfortable reading and editing
Sample Code: Try it instantly with a built-in minified CSS example
One-Click Copy: Copy the cleaned result to clipboard in a single tap
100% Browser-Based: Your CSS never leaves your device, total privacy
Perfect for debugging production stylesheets, reading third-party CSS, reformatting copied styles, cleaning up design tool exports, and restoring readability to any minified stylesheet.
Frequently Asked Questions
A CSS formatter (also called a CSS beautifier) takes compressed, minified, or poorly structured CSS and reformats it with consistent indentation, spacing, and line breaks making it easy to read, debug, and edit. Minified CSS is optimized for file size but completely unreadable: body{color:purple;max-width:75rem;margin:0 auto} becomes four properly indented lines after formatting. You need a formatter when reading third-party stylesheets, debugging production CSS, working with design tool exports, or simply cleaning up code written under deadline pressure. Our tool does all of this in one click, paste, format, copy.
Paste your minified CSS into the editor, then click 'Format CSS'. The tool strips irregular whitespace, adds proper indentation to each declaration, places each rule on its own line, corrects missing semicolons, and adds clean spacing after colons and commas, all in under a second. For example, body{color:red;margin:0} becomes a correctly spaced, multi-line block ready to read and edit. You can also click 'Insert Sample' to see a live before-and-after with a real minified stylesheet if you want to test the formatter before pasting your own code.
They are opposite operations. CSS minification removes all whitespace, comments, and unnecessary characters to reduce file size, ideal for production deployments where load speed matters. CSS formatting (beautifying) adds indentation, line breaks, and spacing to make code human-readable, ideal for development, debugging, and editing. You minify CSS before deploying to production, and you format it when you need to read or edit it. Our tool is a formatter: it takes minified or messy CSS and restores full readability. If you need to minify CSS afterward, that's a separate step but formatting first lets you actually understand what the code does.
Yes, our formatter includes an automatic missing semicolon fix. CSS minifiers sometimes strip the final semicolon before a closing brace (since it's technically optional), which causes confusion when you read the code and try to add new declarations. Our tool detects any missing semicolons before } and inserts them automatically, so your formatted output is always syntactically complete and safe to edit. It also handles irregular spacing around colons, semicolons, braces, and commas normalizing all of it to the correct CSS convention in one pass.
Our formatter works on standard CSS syntax, which means it correctly handles any plain CSS output including the utility-class stylesheets generated by Tailwind CSS's build process, minified CSS from Bootstrap, exported stylesheets from Figma, and any other tool that outputs standard .css files. SCSS and LESS source files use extended syntax (variables, nesting, mixins) that goes beyond plain CSS for those, a dedicated SCSS formatter is recommended. But for any compiled or minified CSS output file that ends up in your browser, our tool formats it cleanly and correctly.