marimo

marimo is a Python notebook for exploring data, training models, running SQL queries, and building interactive apps. It is aimed at developers, data scientists, ML engineers, educators, and analysts who want notebooks that stay in sync with code and outputs.

It stores notebooks as pure Python .py files, so they are Git-friendly, reproducible, and reusable as scripts or modules. Reactive execution updates dependent cells automatically, and built-in widgets include sliders, dropdowns, dataframe tables, and selectable plots.

marimo includes SQL cells, packaging support, virtual environment management, and editor features like autocomplete, hover tooltips, vim keybindings, debugging panels, and hotkeys. It also ships with a CLI, a library, a VS Code extension, and AI assistance through marimo pair.