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CSS Minifier

Developer Tools

Compress CSS by removing comments and redundant whitespace.

Your text

Result

What is CSS Minifier?

CSS Minifier compresses CSS by stripping comments and redundant whitespace to reduce file size.

How to use CSS Minifier

  1. 1 Paste your CSS.
  2. 2 Run the minifier.
  3. 3 Copy or download the compressed CSS.

Supported formats and limits

  • Input: CSS
  • Output: minified CSS
  • Runs in your browser

Common uses

  • Compress a stylesheet before deploying.
  • Remove comments and redundant whitespace.
  • Reduce CSS payload for faster loads.

Things to know

  • Always test the minified output before shipping it.
  • It does not optimise or deduplicate rules.

Privacy and file handling

Minification happens in your browser.

Frequently asked questions

Is minified CSS still valid?

Yes. Minification changes formatting only, not behaviour.

What does CSS minification remove?

Comments, extra whitespace and redundant characters, to reduce file size.

Will minified CSS behave the same as the original?

Yes. For standard CSS the rendered result is identical; only the source formatting changes.

Where does the minification run?

In your browser, so your CSS is not uploaded.

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