Home>Developer Tools>JavaScript Minifier

JavaScript Minifier is a free online tool that reduces the size of JavaScript code by removing comments, extra whitespace, and unnecessary characters. Runs entirely in your browser with no server required.

JavaScript minification is the process of removing all unnecessary characters from source code without changing its functionality. This includes comments, whitespace, and newlines. Minified JS files load faster in browsers, improving page performance and reducing bandwidth usage.

JavaScript Minifier

Minify JavaScript code by removing comments and whitespace.

How to Use

  1. Paste your JavaScript code into the input field
  2. Click the Minify JS button
  3. The tool will instantly remove comments and whitespace
  4. Copy the minified output to use in your project

Example

Input

// Add two numbers
function add(a, b) {
  return a + b;
}

Output

function add(a,b){return a+b;}

FAQ

What does JavaScript Minifier do?
It removes comments, extra whitespace, and newlines from JavaScript code to reduce file size and improve load performance.
Is this tool free?
Yes, it is completely free with no registration required.
Does this tool run in the browser?
Yes, all processing happens locally in your browser and no data is sent to a server.

Related Tools