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Open NotebookSurfSense
Free

Free and open source under the MIT license.

 Free

Free and open source to self-host.

Web, Self-hosted Web, Self-hosted
  • Privacy-focused self-hosted alternative to a well-known proprietary tool
  • MIT licensed with an active Discord community
  • Can run air-gapped with your data kept private
  • Answers questions over your own documents and connected sources
  • Local processing still depends on which model provider is configured
  • Smaller community than the proprietary product it alternatives
  • Requires setting up and maintaining your own server
  • Fast pace of change can mean frequent updates
Self-hosted, Web application Self-hosted
Open source Open source
License: MIT 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 September 26, 2026

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