javascript - I once saw an online real-time drawing tool. On the left is some code, and on the right is the relationship between them.

Question

For example, I write
a-b
b-c
b-d

A relationship diagram similar to this is displayed on the right, and the graphics can also choose whether to output svg or what format

Does anyone know the URL of this tool?

Answer 1

This is also good: https://www.draw.io/