Neural Network Digit Recognition

Welcome! This simulation visualizes a Convolutional Neural Network (CNN) trained on the MNIST dataset.

Draw a single digit (0-9) in the box below. The network will predict the digit, and you can see the internal activations and connection weights.

• The input image is resized, centered, and normalized.
• Nodes are colored by activation (darker = higher).
• Connections are colored by weight (Green +, Magenta -) and thickness indicates magnitude.
• Hover over nodes for exact values.

Loading Model...

Start Simulation