Explore data and build apps seamlessly with marimo, a next-generation Python notebook.

Marimo were first described in the 1820s by Anton E. Sauter, found in Lake Zell, Austria.

Aug 15, 2025 · Enter Marimo, a reactive Python notebook that's reimagining the data science experience and offering some compelling advantages over its older sibling.

A reactive notebook for Python — run reproducible experiments, execute as a script, deploy as an app, and version with git.

You can edit and run marimo notebooks in VS Code or Cursor using our extension; this provides a user interface that's similar to VS Code Jupyter, but with marimo's reactive execution, …

marimo is an open-source programming environment that blends the best parts of interactive computing with the rigor of traditional software development.

Other common names are lake ball or Cladophora ball. In Japan, they are called marimo (meaning a bouncy ball that is in water). The Ainu people of Hokkaido hold an annual Marimo …