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CoCalc vs Jupyter: catalog facts
CoCalc	Jupyter
Freemium Hosted plans and licences are offered; see the pricing page for current terms.	Free Free and open source.
Web, Self-hosted	Windows, macOS, Linux, Web
Notebooks, terminals, files and documents in one shared project Live collaborative editing with version history and recovery	Supports over 40 programming languages Rich interactive output in notebooks
Main use is through a hosted service that needs an account Claude Code support is an experimental preview	Runs through a local server, which adds setup compared with a plain editor Notebook files can be awkward to diff and review in version control
Web application, Self-hosted, Hosted service	Downloadable app, Web application
Closed source	Open source
License not stated	License: BSD-3-Clause
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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