I have written a Program that can open .sch-Files (e.g. from KiCad Eeschema) and simulate them. So far so good, you have seen a such simulator some times. But you may not yet have seen a program that automatically creates the simulation results as an video.
That automatically created video makes it a lot easier to analyze circuits, than reading line graphs. I have uploaded an instruction how to create such an analysis video on youtube.
I would be happy about some remarks, either here or on that youtube-link.