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marimo

Open source Python-first reactive notebook for reproducible data work, stored as Python.

At a glance

Free · Source review 2026-11-04
Price & billing

Open source software with no hosted plan price in the text read: the homepage states the notebook is all open source. Local use and hosting are the user's own.

Free allowance

Not separately confirmed. Check the current plan before relying on a free allowance.

Best suited to

Python users who want a reactive notebook where cells update consistently, stored as Git-friendly Python rather than opaque notebook state.; Data practitioners who transform data, train models, and run SQL queries in one notebook, and run it as scripts and apps.; Educators and teams who want an AI-native notebook experience with reproducible, shareable Python.

Fit is editorial guidance, not a measured result.
Platforms

Access: not separately verified. Operating systems not separately verified.

Published-source facts and editorial guidance. No product test is implied. Confirm current conditions before purchase.

No product screenshot is claimed for this listing. Use the official website ↗ to inspect the current interface.

What to know before choosing

Good fit

Python users who want a reactive notebook where cells update consistently, stored as Git-friendly Python rather than opaque notebook state.; Data practitioners who transform data, train models, and run SQL queries in one notebook, and run it as scripts and apps.; Educators and teams who want an AI-native notebook experience with reproducible, shareable Python.

Limits and trade-offs

Users who want a hosted notebook service with managed accounts and hosting, since marimo is open source software run by the user, not a hosted product in the text read.; Users who work outside Python and SQL, since marimo is a Python-first notebook for Python data work and SQL queries.

Plans and free allowances

Open source software with no hosted plan price in the text read: the homepage states the notebook is all open source. Local use and hosting are the user's own.

Evidence

Official homepage ↗ (reviewed 2026-11-04)

Official published documentation reviewed; not a product test

Dates: Last reviewed 2026-11-04. Last reviewed is the latest source or editorial review date; it is not a content-change date.

A closer look at marimo

marimo is a next-generation, open source, Python-first reactive notebook for reproducible data work: transform data, train models, and run SQL queries in an AI-native notebook that stores work as Git-friendly reproducible Python, runnable as scripts and apps.

Editorial guidance based on published documentation. The workflow below is a suggested starting point, not a measured product result.

When to choose marimo

  • Python users who want a reactive notebook where cells update consistently, stored as Git-friendly Python rather than opaque notebook state.
  • Data practitioners who transform data, train models, and run SQL queries in one notebook, and run it as scripts and apps.
  • Educators and teams who want an AI-native notebook experience with reproducible, shareable Python.

When to choose something else

  • Users who want a hosted notebook service with managed accounts and hosting, since marimo is open source software run by the user, not a hosted product in the text read.
  • Users who work outside Python and SQL, since marimo is a Python-first notebook for Python data work and SQL queries.

A practical starting workflow

  1. Get started with marimo from the homepage or view it on GitHub.
  2. Build a reactive notebook: transform data, train models, and run SQL queries with interactive elements and data exploration.
  3. Store the work as Git-friendly reproducible Python and run it as a script or app.

Check before committing

  • The guessed pricing path returns a 404 page, so no pricing page is cited; the product is presented as open source software.
  • Classroom adoption claims on the homepage are the site's own statements, not independently verified.

Common questions

What is marimo?

A next-generation Python notebook: an AI-native reactive notebook, stored as Git-friendly reproducible Python.

Official homepage ↗

What can I do in it?

Transform data, train models, and run SQL queries, with reactive execution, interactive elements, and data exploration.

Official homepage ↗

Is it open source?

Yes: the homepage states the notebook is all open source, with a View on GitHub entry.

Official homepage ↗

Can it run as more than a notebook?

Yes: it is presented as seamlessly runnable as scripts and apps.

Official homepage ↗

Compare approaches for this task

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  • Matrix Game 2.0 — Researchers and builders working on interactive real-time video and virtual environments who want the Matrix-Game 2 codebase.; Teams that build on the project's gym framework and video pre-training approach for interactive worlds.; Users who want an MIT-licensed research codebase they can inspect, run, and cite, rather than a hosted video product.

Sources and checks

Last source review is not a date of product testing. No rating or test result is implied by inclusion. Check the current plan and terms before buying.