Free CSS Minifier Online
Use this free CSS minifier to remove comments and whitespace and shrink CSS. Fast, private, and works in your browser.
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What is CSS Minifier?
CSS Minifier strips comments, whitespace, and line breaks from CSS to make the smallest possible file for production. It is useful for faster page loads. Minification runs in your browser.
How to use this tool
- Paste your CSS into the input box.
- Click Minify CSS.
- Copy the minified output.
Features
- Remove comments and whitespace
- Shrink CSS for production
- Shows the size reduction
- Copy the minified CSS
- Runs entirely in your browser
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
Does minifying change how my CSS works?+
No. It only removes comments and whitespace; the styles behave the same.
How much smaller will it be?+
It depends on formatting and comments; the tool shows the size saved.
Is my CSS uploaded?+
No. Minification happens entirely in your browser.
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