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Positron vs marimo: catalog facts
Positron	marimo
Free Free to download and use.	Free The open-source application is available without a license fee.
Windows, macOS, Linux	Windows, macOS, Linux, Web
Supports both Python and R in one IDE Data Explorer for large datasets	No hidden state: changing a cell updates everything that depends on it Notebooks are plain .py files, so diffs and version control work
Source-available under Elastic License 2.0, not open source Focused on data science rather than general development	The reactive model forbids some patterns familiar from Jupyter Smaller ecosystem than Jupyter
Downloadable app	Downloadable app
Closed source	Open source
License: Elastic-2.0	License: Apache-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.