Worfklow Builder

Workflow Builder is an embeddable, configurable visual workflow editor SDK for React.

It's fully data-driven: register your own node types, props, and behavior declaratively, without forking the core. A plugin API lets you extend the editor with any missing feature.

Built on top of React Flow and heavily optimized around it for maximum performance even on large graphs, it ships batteries-included (node palette, undo/redo, copy/paste, and more) and includes a full component library with a built-in design system, so you can restyle the entire editor through design tokens alone, without touching CSS or component props.

It also comes with a reference backend integrated with Temporal, so you get a complete, working end-to-end example of orchestrating AI workflows.