What Is CSS Minifier?

A free online CSS minifier. Paste CSS and remove comments, whitespace, trailing semicolons, and unnecessary characters to reduce file size. See before/after statistics with reduction percentage.

Why Use CSS Minifier?

  • Removes CSS comments
  • Removes whitespace and newlines
  • Removes trailing semicolons
  • Shows size reduction statistics

How to Use CSS Minifier — Step by Step

1

Paste your CSS into the input.

2

Click Minify.

3

View the minified output.

4

Copy or download the result.

Who Is CSS Minifier Best For?

  • web optimization
  • faster page loads
  • production builds
  • bandwidth reduction

CSS Minifier — Frequently Asked Questions

Does CSS minification break anything?

No. Minification only removes unnecessary whitespace, comments, and trailing semicolons. The CSS rules and selectors remain fully functional.

Should I minify CSS in development?

No, keep CSS readable during development. Only minify for production deployments to reduce file size and improve load times.

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Free online tool — works in your browser, no sign-up required. Start using it right now.

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