Open source alternatives to Tana

3 open source projects replace Tana, ranked by how safe each is to depend on.

AppFlowy

84 · Healthy

Collaborative workspace for docs, databases, kanban boards and wikis, with built-in AI.

Free core, paid extrasAGPL-3.0★ 77kLast commit 4 months ago

Logseq

78 · Stable

Outliner for notes and knowledge management, with daily journals, backlinks and a graph view.

AGPL-3.0★ 45kLast commit yesterday

SiYuan

70 · Stable

Block-based personal knowledge base with Markdown, backlinks, databases and end-to-end encrypted sync.

AGPL-3.0★ 47kLast commit 5 days ago

Source-available and unverified licenses

The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.

Anytype

54 · Caution

Local-first, encrypted workspace of linked pages, objects and databases that syncs peer to peer.

Free with conditionsAny Source Available License 1.0★ 8.9kLast commit 6 days ago

AppFlowy

84 · Healthy

Logseq

78 · Stable

SiYuan

70 · Stable

Anytype

54 · Caution

At a glance

Health and license are separate verdicts: a project can be well maintained and still not be open source.

Project	Health	License	Stars	Last commit
AppFlowy	84 · Healthy	Free core, paid extrasAGPL-3.0	77k	4 months ago
Logseq	78 · Stable	Free, share hosted changesAGPL-3.0	45k	yesterday
SiYuan	70 · Stable	Free, share hosted changesAGPL-3.0	47k	5 days ago
Anytype	54 · Caution	Free with conditionsAny Source Available License 1.0	8.9k	6 days ago

More in Wikis & knowledge base

Tana is a paid wikis & knowledge base product. See all open source wikis & knowledge base tools, ranked the same way.

Scores last refreshed from GitHub on 9 October 2026. How we score.