CSS Minifier

Minify CSS code instantly — remove whitespace and comments

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About This Tool

Minify CSS stylesheets by removing whitespace, comments, and unnecessary characters. Reduce file size for faster page loading. All processing happens locally in your browser — your CSS never leaves your device.

How to Use

  1. Enter your CSS code into the Input CSS field.
  2. Press the Minify CSS button or use Ctrl+Enter to compress the stylesheet.
  3. The compressed CSS appears in the Minified Output panel with size statistics.
  4. Click Copy to save the minified CSS to your clipboard.

Why Choose OmniTools?

? Instant Results

Zero server lag. All calculations run locally on your device for maximum speed.

??? 100% Private

Your data never leaves your device. No uploads, no servers, no tracking.

Frequently Asked Questions

Does it preserve comments?

No. Comments are removed to reduce file size.

Are source maps generated?

No. Source maps are not currently supported.

Are vendor prefixes changed?

No. Vendor prefixes like -webkit- and -moz- are left unchanged.

Does it support SCSS or Sass?

No. This tool only processes plain CSS.

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