JupyterLab

JupyterLab is the interface most people mean when they say "Jupyter notebook" - a browser-based environment for writing and running code interactively alongside text, visualizations, and output, supporting dozens of programming languages through its kernel architecture (most commonly Python via IPython). It's become the default tool for exploratory data analysis, teaching, and reproducible research.

JupyterLab is a fit for anyone doing exploratory data work, prototyping ML models, or writing reproducible, documented analysis - a foundational tool of the data science workflow that sits alongside frameworks like PyTorch and TensorFlow (also in this catalog) rather than replacing them.