Netron (Model Structure Viewer)
A tool that opens a trained neural network model file and draws its layer structure as a diagram. You can follow which layers connect in what order right on screen.
How to try it
Press the 'Open Model...' button in the middle of the screen and choose a model file you have (ONNX, TFLite, Keras and so on) to draw a graph of connected layer boxes. Clicking a box shows that layer's name and settings on the right. The interface is English only, and since it renders large graphs a desktop browser is recommended.