GITHUB DISCUSSIONS IS THE NEW FORUM FOR JSTREE DISCUSSIONS:

https://github.com/vakata/jstree/discussions

jsTree is jquery plugin, that provides interactive trees. It is absolutely free, open source and distributed under the MIT license. jsTree is easily extendable, themable and configurable, it supports HTML & JSON data sources and AJAX loading.

jsTree functions properly in either box-model (content-box or border-box), can be loaded as an AMD module, and has a built in mobile theme for responsive design, that can easily be customized. It uses jQuery's event system, so binding callbacks on various events in the tree is familiar and easy.

Docs are available here: http://www.jstree.com/
Full API documentation: http://www.jstree.com/api/
Quickstart docs with jsFiddle examples (and source code): https://github.com/vakata/jstree
Stable releases (latest at the top): https://github.com/vakata/jstree/releases
Latest nightly (unstable): https://github.com/vakata/jstree/archive/master.zip