-
I've used D3.js to create linking between nodes before (way more flexible than a treeview). There are a lot of other libraries out there that can do it as well.
-
Sevalla
Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
-
This could be probably done with https://js.cytoscape.org/ as well, so maybe look into that.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.