ToolStack

CSS Minifier

Minify CSS by removing whitespace and comments.

What does CSS Minifier do?

CSS Minifier compresses CSS by removing all unnecessary whitespace, comments, and line breaks, producing the smallest possible valid CSS.

Use Cases

  • •Reduce CSS file size for faster page loading
  • •Minify CSS before deployment
  • •Optimize critical CSS for above-the-fold content
  • •Compress inline CSS in HTML emails

How to Use

  1. 1Paste your CSS code into the input panel
  2. 2Click "Minify" to compress the CSS
  3. 3Copy the minified output or download it

Frequently Asked Questions

Does minification remove CSS comments?
Yes, CSS comments (/* */) are removed during minification to reduce file size.
Is minified CSS still valid?
Yes, minified CSS is fully valid. Only whitespace and comments are removed — all selectors and properties are preserved.

Related Tools

css

CSS Formatter

Format and beautify CSS with proper indentation.

css

CSS Gradient Generator

Create CSS gradients with live preview and copy code.

javascript

JavaScript Minifier

Minify JavaScript code by removing whitespace and comments.

html

HTML Minifier

Minify HTML by removing whitespace and comments.