Shameless plug time! I've been working on something like this as a custom web component with no dependencies: https://github.com/catapart/Magnit.NodeGraph https

Shameless plug time! I've been working on something like this as a custom web component with no dependencies: https://github.com/catapart/Magnit.NodeGraph https://github.com/catapart/Magnit.NodeGraph Not the most feature rich - I'm developing it for a single project, so that's project's needs come first. But it's rudimentary enough to start from if you're looking to build your own, and it's simple enough to customize if it already does what you need.