CSS Minifier
Paste your CSS to remove comments and whitespace — smaller files, faster sites.
About the CSS Minifier
Our free CSS minifier strips comments, whitespace and line breaks from your stylesheets, producing compact production-ready CSS. Smaller stylesheets load faster, improving page speed scores and user experience — a small but meaningful win for SEO and Core Web Vitals.
How to Use the CSS Minifier
- Paste your CSS into the input box.
- Click Minify CSS — comments and unnecessary whitespace are removed instantly.
- Copy the output and deploy it as your production stylesheet.
Why Minify CSS?
- Faster page loads: minified CSS files are typically 20–40% smaller.
- Better scores: helps PageSpeed Insights and Core Web Vitals, which influence rankings.
- Zero risk: minification only removes formatting — your styles behave identically.
Frequently Asked Questions
Is minified CSS still readable?
Not by humans — that is the point. Always keep your original formatted CSS for editing, and minify only the deployed copy.
Does minification change how my site looks?
No. Only comments, whitespace and line breaks are removed; selectors, properties and values stay exactly the same.
How much smaller will my CSS get?
Typically 20–40%, depending on how much commenting and indentation the original file has.
Is my code uploaded anywhere?
No — minification runs locally in your browser.