GoJS is a JavaScript and TypeScript library for building interactive diagrams and graphs. GoJS allows you to build all kinds of diagrams and graphs for your users, from simple flowcharts and org charts to highly-specific industrial diagrams, SCADA and BPMN diagrams, medical diagrams like genograms, and more. GoJS makes constructing JavaScript diagrams of complex nodes, links, and groups easy with customizable templates and layouts.

GoJS offers many advanced features for user interactivity such as drag-and-drop, copy-and-paste, in-place text editing, tooltips, context menus, automatic layouts, templates, data binding and models, transactional state and undo management, palettes, overviews, event handlers, commands, extensible tools for custom operations, and customizable animations.

We maintain hundreds of sample diagrams, detailing different examples of interactivity, templates, and user logic for you to start from. We offer free developer-to-developer support during evaluation.


Build interactive flowcharts or flow diagrams. Let your users build, modify, and save Diagrams with JSON model output.

State Chart

Visualize State Charts and other behavior diagrams. Create diagrams with live updates to monitor state, or interactive diagrams for planning.

Sankey Diagram

GoJS allows considerable customization of Links and Nodes to build all kinds of diagrams. Visualize flow, or connect pipes

Leaflet Map

Create Genogram and Medical diagrams, or editable family trees with collapsible levels.

Org Chart

Create classic org charts for viewing or editing. Automatic layouts make different visualization options easy.

Dynamic Ports Demo

Dynamically add ports and custom link routing. USe data-bindings to save and load routes within the Model JSON.

Data Visualization

Model industrial processes, workflows, SCADA diagrams and more. Permissions and validation make it easy to add rules and constraints when your customers build diagrams.

Regrouping Demo

Use groups as containers and subgraphs, with group members bounds by their own rules and layouts.