What Is Jupyter? Jupyter is a "notebook interface" that lets you create "literate programs," programs that mix code with explanatory text.

Jupyter Notebook lets you author visualizations, but also share them and allow interactive changes to the shared code and data set. Code sharing.

As someone who often works with Python scripts, Jupyter Notebook is my favorite tool for making notes during lectures and sharing my painstakingly-written code with my programming friends and rivals.