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marimoJupyterLab Desktop
Free

The open-source application is available without a license fee.

 Free

Free and open source, maintained by the JupyterLab project.

Windows, macOS, Linux, Web Windows, macOS, Linux, Command line
  • No hidden state: changing a cell updates everything that depends on it
  • Notebooks are plain .py files, so diffs and version control work
  • Runs JupyterLab in its own window without a manual server setup
  • Can install a Python environment for notebooks
  • The reactive model forbids some patterns familiar from Jupyter
  • Smaller ecosystem than Jupyter
  • Electron-based, so heavier than using JupyterLab in an existing browser
  • Bundled environments add significant disk use
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked October 1, 2026

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