Developer Tools
Minify CSS by removing unnecessary spaces, line breaks, and comments.
Use this CSS Minifier to compress CSS into a smaller one-line format by removing extra whitespace, comments, and unnecessary formatting. It is useful for frontend optimization, stylesheet cleanup, snippet preparation, embed code, production builds, and reducing CSS size before deployment or testing.
Use this CSS Minifier to compress CSS into a smaller one-line format by removing extra whitespace, comments, and unnecessary formatting. It is useful for frontend optimization, stylesheet cleanup, snippet preparation, embed code, production builds, and reducing CSS size before deployment or testing.
Use css minifier when you need a fast browser-based result without extra setup. It works well for quick checks, one-off tasks, and routine formatting or calculation work.
Read step-by-step usage guidance, best practices, and common mistakes.
See common questions and answers about input, output, and tool usage.
Review practical input and output examples before running the tool.
Find similar and supporting tools for adjacent actions and follow-up tasks.
Input
body {
color: red;
margin: 0;
} Output
body{color:red;margin:0;} Useful for turning readable CSS into compact production-style output.
Input
/* main */
.button {
padding: 10px 20px;
background: blue;
} Output
.button{padding:10px 20px;background:blue;} Useful when copied CSS contains comments and extra formatting that are not needed in final output.
Fix: Paste complete CSS rules so the minified output stays usable.
Fix: This tool removes common whitespace and comments, but it is not a full production bundler.
Fix: Do not use this output if you need to preserve comments for documentation or licensing.
Fix: This page focuses on minification, not advanced CSS refactoring.
Fix: Keep the beautified source version for editing and use the minified version for deployment.
It removes unnecessary whitespace, line breaks, and comments to create a smaller CSS output.
It is meant to preserve the styles while removing formatting that is not required for execution.
Yes. Standard CSS comments are removed during minification.
CSS Minifier makes CSS compact, while CSS Beautifier makes it easier to read and edit.
Usually no. It is better to edit a readable version and minify it afterward.