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JavaScript Minifier – Minify & Compress JS Code Online

JS Minifier Tool

Minify your JavaScript code and boost your website's speed instantly.

Paste your JS code, click Minify, and get a cleaner, smaller, optimized version.

Our online JS Minifier removes unnecessary characters—like spaces, comments, and line breaks—without changing how your JavaScript works.

Perfect for developers, web designers, and anyone optimizing a site.

WebsiteTool.in
Minification

FEATURES

  • ✅ Instant JS Minification
    Compress JavaScript code in seconds.
  • ✅ Retains Code Functionality
    Only removes unnecessary whitespace & comments — functionality stays intact.
  • ✅ Reduces File Size
    Smaller JS files = faster loading pages.
  • ✅ Boosts Site Performance
    Better performance, reduced bandwidth usage, and improved SEO.
  • ✅ Free & Unlimited
    Use the tool without login, limits, or fees.
  • ✅ Secure Processing
    Everything happens in your browser — your code stays private and is not stored.

HOW IT WORKS

  • ✅ Paste your JavaScript code into the input box.
  • ✅ Click Minify JS .
  • ✅ Copy the minified JavaScript and use it in your project.

Example ( before ) 

// Alert message
function greet() {
    console.log("Hello World!");
}
greet();

Example ( After ) 

function greet(){console.log("Hello World!")}greet();