Optimize Javascript files with Google Closure compiler

Google has released / open sourced one of its internal tools, the javascript closure compiler. The closure compiler is used to optimize javascript files. It works by analyzing the code and removing redundancies and shortening variable names.
This tool can be used to compress javascript files, (similar to the famous packer), results in lesser code to download, execute, obfuscation and faster user experience.

Since most web 2.0 or 3.0 applications uses a lot of javascript usually jQuery library or the YUI (Yahoo User Interface) Library to make RIA (Rich Internet Applications), this can be a very handy tool to improve Performance.

The example code shows converting the following script from

function hello(name) {
  alert('Hello, ' + name);
}
hello('New user');

function hello(a){alert("Hello, "+a)}hello("New user");

It removes whitespaces, and shortens the variable names.

A Few numbers :

Closure Tool Links :

• Google Closure compiler
• Closure Tools

Other Similar Tools

• YUI Yahoo Javascript Compressor
• Dean Edwards Javascript Packer