Community Edition

This is the open source jsPlumb project hosted on GitHub that was first created in early 2010. It is a view layer technology that provides you with an API to establish connectivity between DOM elements, both programmatically and via mouse/touch events.

The Community Edition is free, and is licensed with an MIT or GPL2 license; you choose whichever suits your needs.

Toolkit Edition

The Toolkit Edition wraps the Community edition with a focus on the underlying data model, as well as several useful UI features such as layouts, and a widget that offers pan/zoom functionality. It provides a fast way of building applications with visual connectivity at their core. To get a better feel for the capabilities of the Toolkit Edition, take a look through some of the demos or peruse the documentation.

The Toolkit Edition has a commercial, per-developer, license with optional access to email support (plus updates to new released versions for a year). License terms are available here. Feel free to jump in and buy a license right now using this form!

Roadmaps for both editions can be viewed here.

Comparison
Community EditionToolkit Edition
Programmatic API
Drag and Drop
Events
Layouts
Data Binding
Client Side Templates
Pan/Zoom
Load/Save Data
Graph Operations
Dialogs
Angular 1.x Integration
Angular 2 Integration
Optional Email Support