Free & Open-Source Tana Alternatives

Outliner with super-tags.

1. Logseq ↗ FOSSPRIVATE
   Outliner-style note-taking with bidirectional links.
   ●●○Medium · Imports Markdown / plain text
2. AppFlowy ↗ FOSSPRIVATESELF-HOST
   Open-source Notion alternative — local-first.
   ●●○Medium · Imports Markdown / plain text
3. Anytype ↗ FOSSPRIVATE
   Local-first knowledge base with end-to-end encryption.
   ●●○Medium · Strong feature parity