Will minification break my CSS rules?

No. Our minifier preserves CSS syntax rules, selectors, and string literals while safely stripping comments and unnecessary spacing.

How much smaller will my stylesheet become?

Well-formatted CSS with comments typically shrinks by 20% to 45% when minified.

Dev Tools

CSS Minifier

Minify CSS code to reduce file size.

100% Private & Client-Side Execution

Minification is performed entirely in client-side memory.

About CSS Minifier

CSS Minifier compacts stylesheet code by eliminating comments, superfluous whitespace, and redundant semicolons, reducing file download sizes for faster website performance.

How to Use CSS Minifier

Paste your raw CSS code into the editor.
The minified output is generated automatically along with a percentage savings indicator.
Review the minified code in the output box.
Click "Copy CSS" to grab the production-ready code.

Common Real-World Use Cases

Web Developers: Optimize production CSS bundles for faster First Contentful Paint (FCP).
WordPress Designers: Minify custom theme and plugin stylesheets.
Email Developers: Compress inline stylesheet blocks in HTML email templates.

Technical Specifications & Limitations

Safely protects quoted string literals (such as font family names and generated content) from whitespace stripping.

Frequently Asked Questions

Will minification break my CSS rules?: No. Our minifier preserves CSS syntax rules, selectors, and string literals while safely stripping comments and unnecessary spacing.
How much smaller will my stylesheet become?: Well-formatted CSS with comments typically shrinks by 20% to 45% when minified.