Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.

React Flow and Svelte Flow are MIT-licensed open source libraries for building node-based user interfaces with interactive graphs, flowcharts, and diagrams. Both libraries come with ready-to-use components like MiniMap, Controls, and Background, while offering extensive customization options. The libraries are maintained by xyflow and available through npm, with commercial support options available for organizations.