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CSS minifier

Make CSS files smaller for faster websites (safe structural minification).

  • Free
  • No sign-up
  • Works on any device

About CSS minifier

Shrink CSS by removing comments, whitespace and redundant semicolons, which speeds up page loads. This tool does safe structural minification, so rules behave exactly as before. Keep your readable source file and serve the minified copy, ideally with gzip or Brotli compression on top.

How to use CSS minifier

  1. Type or paste your text in the box above.
  2. The result appears instantly as you type.
  3. Copy the result or download it as a file.

Why use this tool?

Also known as

Frequently asked questions

Does minifying CSS change how my site looks?

It should not. Only comments and spacing are removed, so rendering stays identical. Keep the original file for editing because minified code is hard to read.

Is CSS minifier free?

Yes. CSS minifier on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

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