Developer Tools

CSS Minifier

Minify CSS to shrink file size and speed up your website. Free online minifier.

Input CSSMinified — saved 40%

.button{color:red;padding:12px 24px}

How to use CSS Minifier

How much smaller will my CSS be?

Typical savings are 15–40% depending on comments and whitespace.

Is the CSS Minifier really free?

Yes — every tool on ToolFlexPro is 100% free with no signup, no watermarks and no daily limits.

Is my data safe?

Everything runs directly in your browser. Nothing is uploaded to a server, so your data stays private on your device.

Does it work on mobile?

Yes. ToolFlexPro is fully responsive and works on any phone, tablet or desktop.

Do I need to install anything?

No installs. It runs instantly in any modern browser (Chrome, Safari, Firefox, Edge, Brave).