marimo is a Python library for creating reactive notebooks that double as apps. marimo is:

  • reactive: run a cell and marimo automatically runs cells that depend on it

  • interactive: interact with sliders, tables, and more to run cells

  • reproducible: no hidden state

  • simple: no callbacks, no magical syntax

  • expressive: parametrize markdown with interactive elements, plots, or anything else

  • Pythonic: cells only run Python; notebooks stored as .py files (clean git diffs!)

  • performant: powered by static analysis, zero runtime overhead

marimo was built from the ground up to solve many well-known problems associated with traditional notebooks; marimo is not built on Jupyter or any other notebook or app library.

⚡ marimo notebooks run automatically with interactions and code changes

✨ express yourself with markdown, LaTeX, tables, accordions, tabs, grids, and more

🔬 do reproducible science in an environment that makes your data tangible

🚀 deploy your creations as interactive web apps

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