What is MooTools?

MooTools is a free, compact, modular, and object-oriented JavaScript framework.

Thanks to a set of classes and functions compatible with the most widely used web browsers, MooTools provides a solution to the challenges of developing Rich Internet Applications.

The entire library is contained in a single JavaScript file. When downloading from the official website, you can specify which components to include and choose a compression type for the file. The file size is therefore reduced to the bare minimum, speeding up both the transfer and loading of the library in the browser.

MooTools combines features found in Script.aculo.us and Prototype, including several classes dedicated to AJAX, graphic animations, and drag-and-drop. MooTools benefits from an active community that has developed numerous plugins and provides support for this library, available under the MIT license.