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ToolNest AI
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CSS Minifier

Minify CSS to reduce stylesheet size and boost website performance.

Minify options
cssPaste or upload your CSS here
compressOutput CSS will appear here

About CSS Minifier

Strip whitespace, comments, and redundant code from CSS files to produce a compact, production-ready stylesheet. Smaller CSS means faster parse times and improved Lighthouse scores for your web projects.

Frequently Asked Questions

No. Minification only removes whitespace and comments. All CSS rules, selectors, and properties remain intact.

Yes, vendor prefixes (-webkit-, -moz-, etc.) are preserved exactly as-is during minification.

Yes, paste minified CSS to auto-format and indent it for readable, maintainable code.

Absolutely. The output is production-ready. We recommend keeping your original unminified version for development.

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