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Open Notebook vs Gemini Notebook: catalog facts
Open Notebook	Gemini Notebook
Free Free and open source under the MIT license.	Freemium Requires a Google account; check Google's site for current plan limits.
Web, Self-hosted	Web
Privacy-focused self-hosted alternative to a well-known proprietary tool MIT licensed with an active Discord community	Works from sources you upload Summaries and Q&A across several documents
Local processing still depends on which model provider is configured Smaller community than the proprietary product it alternatives	Requires a Google account Web only, documents are processed by Google
Self-hosted, Web application	Web application
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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