MooTools includes a number of components. The following are the different component categories −
Core − A collection of utility functions that all the other components require.
More − An official collection of add-ons that extend the core and provide enhanced functionality.
Class − The base library for class object instantiation.
Element − Contains a large number of enhancements and compatibility standardization to the HTML Element Object.
FX − An Advanced effects-API that helps to animate page elements.
Request − Includes XHR interface, Cookie JSON, and HTML retrieval-specific tools for developers to exploit.
Window − Provides a cross-browser interface to client-specific information, such as the dimensions of the window.
MooTools is an extensive and modular framework that allows developers to create their own customized combination of components.
MooTools follows object-oriented paradigm and the DRY principle (Don't Repeat Yourself).
MooTools provides advanced component effects, with optimized transitions. It is mostly used for flash developers.
MooTools provides different enhancements to the DOM. This helps the developers to add, modify, select, and delete DOM elements. And, it also supports storing and retrieving element storage.