Online ML notebook
I use Google's notebook in the course of Tensorflow on coursera. The url is https://colab.research.google.com/notebooks/welcome.ipynbThere is a simple introduction on the page. There are some other settings in the menu, like using which version of python, which type of processor.I found it runs pretty fast with google's notebook. Microsoft has another one. https://notebooks.azure.com/. It supports more languages than any other platform including Python 2, Python 3, R, and F#.