Loading Neural Network Backpropagation Lab...
INTERACTIVE AI MATH LESSON
Neural Network Backpropagation Lab
Train a tiny neural network in-browser and see backpropagation as a decision-boundary heatmap, network-weight diagram, loss curve, CSV, Markdown and JSON receipt.
Reviewed 2026-06-27
EducationBackpropDecision boundaryLoss curveWeightsJSON receipt
WHY IT IS DIFFERENT
It makes backpropagation visible.
The heatmap, loss curve and network-weight diagram show how prediction error flows backward into weights instead of leaving learning as a black box.