This is a Neural Network, running in your browser. It figures out what's in an image by looking at the image. It doesn't send the data back to a server. It doesn't rely on some fancy Google API. It's right there, running on that computer in front of you.
It was created, initially, by Jetpac. This version has been rewritten to use a new library called weblas. Weblas makes it easy for everyone to create neural networks (and other machine learning frobnications) that run in browsers. It uses a GPU and, as you can hopefully see for yourself, it's pretty fast.
I created it because, if everyone can help build the future, the future will be better. What will you make?