The CSS Minifier compresses CSS by removing comments, whitespace, and unnecessary characters, making your stylesheet smaller so pages load faster. Paste your CSS and get minified output in one click.
How to minify CSS
- Paste your CSS into the input area.
- The tool removes comments and whitespace to produce minified CSS.
- Copy the compressed result into your project.
Why minify CSS?
Smaller CSS files download faster and improve page-load times and Core Web Vitals. Minification keeps the styles identical while cutting file size, which is especially valuable on large stylesheets.
Frequently Asked Questions
What does minifying CSS do?
It removes comments, spaces, and line breaks that browsers don’t need, shrinking the file without changing how it renders.
Does minifying CSS break my styles?
No. Minification only strips whitespace and comments; the rules themselves are unchanged.
How much smaller will my CSS be?
Typical savings are 10–30%, and more if your CSS has lots of comments and formatting.
Is the CSS minifier free and private?
Yes. It’s free and runs in your browser, so your code isn’t uploaded.