What does CSS minification do?

CSS minification removes comments, unnecessary whitespace, line breaks, and redundant characters from your CSS code. This reduces file size, leading to faster page load times and better web performance.

Will minification break my CSS?

No, minification only removes unnecessary characters. It preserves all CSS rules and functionality. The minified code produces the exact same rendering as the original.

Is this tool free to use?

Yes, the CSS Minifier is completely free with no usage limits. All processing happens in your browser — your code is never uploaded to any server.

CSS压缩工具

在线压缩和美化CSS代码。删除注释、空格，立即减小文件大小。

输入

使用方法

在线压缩和美化CSS代码。删除注释、空格，立即减小文件大小。

1Paste your CSS code into the input field.
2Click 'Minify' to compress or 'Format' to beautify.
3View the size reduction percentage instantly.
4Copy the result with one click to use in production.

主要功能

Remove comments, whitespace, and unnecessary characters
Shows original vs minified size with savings percentage
Beautify/format mode for readable CSS
100% client-side — your code never leaves the browser

常见问题

了解更多

CSS Minifier Guide — Optimize Your Stylesheets for Web Performance