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CSS Minifier

Minify CSS by removing unnecessary whitespace and comments.

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How CSS Minifier Works

Paste or enter your input in the field above. Most tools update in real time. Click the Copy button to copy the output. All processing happens in your browser—your data never leaves your device unless the tool explicitly uses a server feature (such as URL shortening or bcrypt hashing).

This tool is part of the Minifiers category. Check similar tools below. All everytools are free, no signup required. Works on desktop and mobile.

Other Minifiers Tools

JavaScript Minifier

Minify JavaScript code. Remove whitespace and shorten variable names.

HTML Minifier

Minify HTML to reduce file size and improve page load speed.

JSON Minifier

Minify JSON by removing whitespace and newlines.

Frequently Asked Questions

How do I use CSS Minifier?
Paste or type your input in the tool field. Most tools update in real time as you type. Click the Copy button to copy the result to your clipboard. For supported tools, you can also download the output directly.
Is CSS Minifier free?
Yes. CSS Minifier is completely free with no signup required. Use it as often as you need from any browser.
Does CSS Minifier send my data to a server?
For most tools, no—processing happens entirely in your browser. Your data never leaves your device. Only a few tools (URL shortening, bcrypt) use the server; for those, we process minimal data and do not retain it.
Can I use CSS Minifier on mobile?
Yes. All everytools work on desktop and mobile browsers. No special app required.