CSS Formatter & Minifier
Paste a CSS stylesheet below to beautify it into clean, indented rules for readability, or minify it into a compact block for production.
How to Use the CSS Formatter & Minifier
- Paste your CSS rules into the input box.
- Click "Beautify" to reformat with one property per line and consistent indentation, or "Minify" to strip comments, whitespace and line breaks.
- Review the result box, then click "Copy" to copy it to your clipboard.
- Paste the minified CSS into your production stylesheet, or the beautified CSS into your editor for easier review.
Why Use This Tool?
Is my CSS uploaded anywhere?
No. Both beautifying and minifying are implemented as plain JavaScript that runs locally in your browser tab. Nothing you paste — including custom brand colors, internal class names, or proprietary design system code — is ever sent to a server or logged.
How much smaller does minifying make my file?
Minifying removes all comments, collapses whitespace around selectors and braces, and strips the trailing semicolon before a closing brace. Typical hand-written CSS shrinks by 15-30%, which adds up on larger stylesheets and reduces page load time.
Will beautifying change my CSS logic?
No — beautifying is purely cosmetic. It rebuilds the same rules with one declaration per line and consistent indentation based on nesting depth (useful for CSS with media queries or nested at-rules), without altering selectors, property names, or values.
Who uses a CSS formatter?
Frontend developers cleaning up CSS copied from a browser's dev tools, teams enforcing a consistent code style before a pull request, and anyone preparing a production build who wants a smaller minified stylesheet without a full build pipeline.