Are variable names mangled too?

No. For safety, only comments and unnecessary whitespace are removed — variable names are left unchanged. For actual production deployments, we recommend using a dedicated bundler.

Do CSS and JS minify differently?

CSS is fully compressed onto a single line, while JS keeps line breaks for syntactic safety and only removes whitespace and comments.

Is the code I enter sent to a server?

No. It's processed entirely in your browser.

✂️ JavaScript / CSS Minifier

Removes comments and unnecessary whitespace to reduce file size. CSS is fully compressed onto one line; JS safely removes only whitespace and comments, without changing variable names.

CSS JavaScript

Input

Result

How to use

Choose CSS or JavaScript.
Enter your code.
Click "Minify" to see the result with comments/whitespace removed and the size reduction shown.

🎯 Use Cases

Reduce CSS/JS file size before deployment
Minify inline styles for email templates, etc.
Minimize size when sharing code

Example

Input

.button {
  color: #ffffff;   /* text color */
  background: #3366ff;
  padding: 10px 20px;
}

Output

.button{color:#ffffff;background:#3366ff;padding:10px 20px}

In CSS mode the tool strips comments and all unnecessary whitespace and line breaks, drops the trailing semicolon, and collapses everything onto one line. This example shrinks from 93 to 59 bytes, about 37% smaller.

FAQ

Are variable names mangled too?: No. For safety, only comments and unnecessary whitespace are removed — variable names are left unchanged. For actual production deployments, we recommend using a dedicated bundler.
Do CSS and JS minify differently?: CSS is fully compressed onto a single line, while JS keeps line breaks for syntactic safety and only removes whitespace and comments.
Is the code I enter sent to a server?: No. It's processed entirely in your browser.