Front end to test live input in the TF mnist tutorial
This was made for a Youtube video and it is not the best example today. There is one step to copy/paste a string from Python to Javascript. If you are willing to trade accuracy for speed, see the pure JS examples below.
https://tensorspace.org/html/playground/lenet.html LeNet + TensorSpace visualization
https://github.com/tensorflow/tfjs-examples/tree/master/mnist ConvNet + DenseNet enitely in TFJS