Thanks for the heads up. I will have to check out dagre-d3. In the past we have used visjs. That being said, we have never really had much success with it as the networks, above a trivial size, never seem to settle in. i.e. the nodes keep bouncing around (and at visually sub-optimal edge lengths).

http://visjs.org/network_examples.html

Outside the network module, I have no feedback on visjs.