Drawing neural networks

Question

Similar to the figures in this 3Blue1Brown video, I would like to create a basic figure of a multilayer perceptron (neural network).

Answer 1

I wrote an in-browser tool for this: NN-SVG. Choose from FCNN layout, LeNet layout, and AlexNet layout.

Answer 2

Grant Sanderson a.k.a. 3Blue1Brown writes his own code to produce the figures he presents in his videos. The code is available at https://github.com/3b1b/manim and you may find the code for the neural network figures in https://github.com/3b1b/manim/tree/master/old_projects/nn

Also: How to draw Deep learning network architecture diagrams?