The Playgrounds
Theory is great, but have you ever poked a neural network with a stick? New lab every Sunday.
Interactive Demo
LAB #1intermediate
Understanding Backpropagation
Step through forward & backward passes interactively — watch gradients flow through every node.
Launch Lab
All Labs
LAB #2beginner
Gradient Descent Visualized
Watch a ball roll downhill on a loss surface — drag the starting point to see how optimization really works.
5 minPlay
intermediate
Backpropagation Playground
Step through forward pass, backward pass, and weight updates in a neural network or CNN — watching the math unfold at every step.
10–15 minPlay
intermediate
Interactive CNN Builder
Upload custom images and snap together CNN blocks dynamically to build your own feature extraction pipeline.
10–15 minPlay
beginner
CNN Layer Explorer
See what a CNN sees at every layer. Pass an image through a convolutional neural network and visualize feature maps, activations, and pooling.
5–10 minPlay
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