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Compress and optimize CSS code

CSS Minifier

Minify CSS code by removing unnecessary comments, spaces, tabs, and line breaks. Paste your CSS, choose minification options, and get compact code for faster website delivery.

Minify CSS Reduce File Size Copy Output

Cleaner production CSS

Turn readable development CSS into compact production-ready code for websites, themes, and landing pages.

Free CSS Minifier Tool

Paste your CSS code below and compress it instantly. This tool works in your browser and keeps your code private.

Input CSS 0 characters
Minified Output 0 characters
Remove unnecessary CSS comments for smaller output.
Safe mode protects quoted strings and common CSS values.
Load a sample to test the CSS minifier quickly.
0 Original Characters
0 Minified Characters
0% Estimated Reduction
CSS code minified successfully.
Please paste CSS code before minifying.
This CSS Minifier is designed for stylesheets, snippets, themes, and landing page CSS. Always test your page after minifying production code.

Why Use a CSS Minifier?

CSS minification reduces unnecessary code weight and helps create smaller stylesheet files for better website performance.

Reduce CSS File Size

Remove extra spaces, comments, tabs, and line breaks from CSS code to create a smaller stylesheet.

Improve Page Speed

Smaller CSS files can download faster, helping browsers load and render website styles more efficiently.

Browser-Based Privacy

Your CSS is processed in your browser, so pasted code is not uploaded to the server for minification.

What Is CSS Minification?

CSS minification is the process of removing characters that are not required for browsers to read a stylesheet. These characters include comments, repeated whitespace, tabs, and unnecessary line breaks.

Developers often write CSS with spacing and comments for readability during development. Before publishing a live website, minifying CSS can help reduce file size and make the stylesheet more efficient for production use.

How It Works

Compress your CSS code in three simple steps.

Paste CSS

Add your stylesheet, CSS snippet, theme code, or landing page styles into the input editor.

Choose Options

Select whether to remove comments and use safe minification for quoted CSS values.

Copy Minified CSS

Click the minify button, review the smaller output, then copy or download the compressed CSS file.

CSS Minifier FAQs

Common questions about compressing and minifying CSS code online.

Yes, this CSS Minifier is free to use. You can paste CSS code, compress it, copy the result, and download the minified output.
CSS minification is designed to remove unnecessary characters without changing how styles work. Still, you should test important pages after minifying.
Yes. You can choose to remove comments or keep them. Removing comments usually creates a smaller CSS output.
No. This tool works directly in your browser, so your pasted CSS is processed on your own device.
You can minify normal CSS files, style snippets, WordPress theme CSS, landing page styles, custom CSS blocks, and website templates.