CSS Beautifier
What the CSS Beautifier does
The CSS Beautifier takes minified or inconsistently formatted CSS and reformats it with proper indentation and line breaks, turning a dense wall of code back into something readable and easy to edit.
How to use it
- Paste your CSS into the box.
- Click Beautify CSS.
- Click Copy formatted CSS to copy the readable output.
Common uses
- Reformatting minified CSS pulled from a live website for study or reuse.
- Making a colleague's inconsistently formatted stylesheet easier to review.
- Cleaning up CSS before pasting it into a code review or documentation.
- Restoring readability to CSS that lost formatting during a copy-paste.
- Preparing minified third-party CSS for local debugging in dev tools.
Good to know
Beautifying doesn't recover comments, variable names, or structure that was stripped out during minification — it can only reformat what's actually present in the code, so heavily minified CSS from a build tool will come out readable but won't regain any information genuinely lost in the minification process.
Reading minified CSS directly is genuinely difficult — with no line breaks or indentation, a stylesheet with hundreds of rules becomes an unbroken wall of text that's nearly impossible to scan visually, even for an experienced developer. Beautifying it restores the visual structure that makes CSS's cascade and specificity relationships legible again, which is why it's a standard first step whenever you need to actually understand or modify someone else's production stylesheet.
Frequently asked questions
Yes, this is exactly the use case — paste minified, single-line CSS and it will be reformatted with proper indentation and line breaks.