For this particular one I used d3.js, but honestly this isn't really the type of thing it's designed for. I've also used GSAP for this type of thing on this article I wrote about database sharding.

https://planetscale.com/blog/database-sharding

Your diagrams are fantastic; I'd enjoy a short blog post or snippet just on how you used D3 for this!

As someone who has also use GSAP a decent amount, these days I usually have a better experience with SVG.js [1].

[1] https://github.com/svgdotjs/svg.js

Do you mean something for data visualization, or tricks condensing large data sets with cursors?

https://d3js.org/

Best of luck =3