Coding Platform with Visualization

I am building a coding platform that lets you visualize how the data structures change form/shape based on the code. Here's a prototype:

https://www.youtube.com/watch?v=9SGAnDZqB8U

It's too early to give out the URL for people to try it out as there are plenty of bugs. That's why I was reluctant to post on "show". I would appreciate if you leave a comment/feedback after watching the video.

Is this something that you would pay to have?