RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node . Using a modular script loader like RequireJS will improve the speed and quality of your code. IE 6+ .......... compatible ✔ Firefox 2+ ..... compatible ✔ Safari 3.2+ .... compatible ✔ Chrome 3+ ...... compatible ✔ Opera 10+ ...... compatible ✔ Get started then check out the API . It works with jquery also... http://requirejs.org/