Dynatree is a jQuery plugin that allows to dynamically create html tree view controls using JavaScript. It is optimized for large dynamic trees (DOM elements are only created when really needed). Programmable through a rich object oriented interface. It support for lazy loading and Ajax.

It supports Checkboxes and hierarchical selection, drag and drop, persistence. And it is Keyboard aware. It is open source and released under MIT License.

Requirements: jQuery Framework
Download Link: https://code.google.com/p/dynatree/
License: MIT License