CSS Minifier

Minify your CSS code instantly with the CSS Minifier Tool. Remove comments, line breaks, and extra whitespace for a compact result. Live preview, import/export, character count, and copy features included. Optional validation ensures clean, working CSS.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .css
Total characters: 0
Options
Remove comments
Collapse whitespace
Remove line breaks
Validate input

How to Use:

  1. Paste your CSS into the Input CSS box.
  2. Or import a .css or .txt file using the Choose File button.
  3. Toggle options such as:
    • Remove comments
    • Collapse whitespace
    • Remove line breaks
    • Validate input CSS
  4. The Minified Output updates live as you type or toggle options.
  5. Use Copy Output or Export to File to save your result.
  6. Click Clear All to reset everything.

What the CSS Minifier Tool can do:

  • Strips multi-line (/* ... */) CSS comments.
  • Collapses excess whitespace down to single spaces.
  • Removes all line breaks for fully compressed output.
  • Optionally checks for basic CSS structure before formatting.
  • Shows total output characters and flashes on every update.
  • Supports file import/export, clipboard copy, and full reset.

Example:

Input:

/* Layout */
body {
  margin: 0;
  padding: 0;
}

Options Enabled:

  • Remove comments
  • Collapse whitespace
  • Remove line breaks

Output:

body { margin: 0; padding: 0; }

Common Use Cases:

Perfect for reducing CSS size before deployment, embedding in HTML, or sharing. This tool helps strip unnecessary formatting, developer notes, and excess whitespace to optimize your styles for performance and readability.

Useful Tools & Suggestions:

Before shrinking things down, CSS Prettify can help you organize and check the stylesheet for errors or weird formatting. And if you’re dealing with full-page content, HTML Minifier pairs well clean CSS plus compressed HTML makes everything load smoother without extra bulk.

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