CSS Beautifier
Turn minified or messy CSS into clean, readable, indented rules.
How to use the CSS Beautifier
- Paste your CSS on the left.
- The formatted version appears on the right.
- Copy the tidy CSS.
About the CSS Beautifier
The CSS Beautifier turns minified or messily formatted stylesheets into clean, readable rules. Paste your CSS on the left and the formatted version appears on the right, with each selector, declaration and closing brace laid out consistently and indented so the structure of your rules is easy to follow.
It is powered by js-beautify, the same established formatting library used inside many code editors, so the spacing and indentation follow conventions developers already recognise rather than an ad-hoc style. This is especially useful when you inherit a compressed production stylesheet, or a bundle from a build tool, and need to understand or edit it without fighting a single dense line.
All formatting happens in your browser, so your CSS is never uploaded. Copy the tidy result back into your project when you are done. When it is time to ship, the CSS Minifier compresses it again, and for the markup and scripts around your styles the HTML Beautifier and JavaScript Beautifier do the same job.
Frequently asked questions
Which formatting engine does it use?
It uses js-beautify, a well-established library also built into many editors and IDEs. Its rules for spacing and indentation are predictable and familiar rather than a custom implementation.
Does beautifying change how my styles apply?
No. It only adjusts whitespace and indentation. Your selectors, properties and values stay identical, so the styling behaves exactly the same in the browser after formatting.
Can it expand a minified stylesheet?
Yes. Paste a compressed, single-line CSS file and it is re-indented into readable rules, which is ideal when you need to inspect or edit a production or build-tool output.
Is my CSS uploaded anywhere?
No. Formatting runs entirely in your browser, so your stylesheet never leaves the page. That makes it safe for proprietary or unreleased styles.
How do I minify it again for production?
After editing, run the result through the CSS Minifier to strip comments and whitespace, producing a smaller file for deployment while keeping your readable copy separately.