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CSS CSS Minifier

Minify CSS by removing comments, extra whitespace and unnecessary line breaks for smaller stylesheets.

Practical guide

How to use CSS Minifier

Minify CSS by removing comments, extra whitespace and unnecessary line breaks for smaller stylesheets.

Common uses

  • Compress CSS
  • Prepare production styles
  • Reduce file size
  • Clean copied CSS snippets

Good practice

Keep the readable source in version control and test the minified stylesheet at every supported breakpoint. Basic minification does not remove unused rules.

Data handling

Stylesheets may expose internal asset URLs or product names. Review private project CSS before placing it in an online utility.

Frequently asked questions

What does CSS minification do?

It removes unnecessary characters while keeping the CSS behavior the same.

Does it optimize every CSS rule?

It performs safe basic minification, not advanced rewriting.

Should I keep an original copy?

Yes. Keep readable source CSS and publish minified output separately.