Is CSS Minifier free to use?

Yes, completely free. No registration, no login, no hidden fees. Minify unlimited CSS files with no restrictions.

How much can CSS Minifier reduce file size?

CSS Minifier typically reduces file size by 15-40% depending on your code. Larger files with comments and extra spacing see greater compression.

Does CSS Minifier remove CSS functionality?

No. Minification only removes unnecessary whitespace and comments. All CSS rules, selectors, and properties remain identical and fully functional.

Is my CSS code safe with CSS Minifier?

Yes. All processing happens entirely in your browser. Your code is never uploaded to our servers and is deleted when you close the tab.

Does CSS Minifier work on mobile devices?

Yes. Works on iPhone, Android, iPad, and all tablets. The responsive interface adjusts automatically to smaller screens.

What CSS formats does it support?

Supports standard CSS3, SCSS, SASS, LESS, and minified CSS. Works with comments, media queries, keyframes, and all modern CSS features.

Can I minify multiple CSS files at once?

Yes. Paste all CSS files into the input area separated by line breaks, and they'll be minified together as one output.

Does minified CSS work in all browsers?

Yes. Minified CSS works identically in all modern browsers including Chrome, Firefox, Safari, Edge, and Internet Explorer 10+.

online

CSS Minifier — online

Minify and compress CSS code online. Remove comments, whitespace, and redundancy for faster load.

CSS input

How to use CSS Minifier

Paste Your CSS Code

Click the large text input area labeled 'Paste your CSS here' and paste your unminified CSS code. You can paste up to 5MB of CSS content at once.

Click the Minify Button

Press the blue 'Minify CSS' button located below the input field. The tool instantly processes your code and removes all whitespace, line breaks, and comments.

Copy the Minified Output

The minified CSS appears in the right panel. Click the 'Copy to Clipboard' button to copy the compressed code, or click 'Download' to save it as a .css file.

Replace in Your Project

Paste the minified CSS into your HTML file's <style> tag or link to the downloaded .css file in your project. Your page will load faster with reduced file size.

Frequently Asked Questions

Related Tools

💻

JavaScript Minifier

Minify JavaScript code online. Remove whitespace and comments to reduce bundle size.

💻

HTML Formatter

Format and beautify HTML code online. Indent, clean, and minify HTML instantly.

💻

JSON Formatter

Format, validate, and minify JSON data online. Syntax highlighting, error detection, and tree view.