Open-source alternatives to Atlassian Confluence
4 alternatives, ranked by a published maintenance score computed from live GitHub signals (fetched 2026-09-04). We flag unmaintained projects on both sides — including Atlassian Confluence itself when the data says so.
About Atlassian Confluence: Proprietary; Atlassian ended cheap server licenses in 2024, pushing small teams to cloud pricing. It is closed-source, so the same public maintenance signals do not exist for it — we score only the alternatives below.
The alternatives
Outline
Fast team knowledge base with a clean editor.
How this 90/100 was computed
| Last commit | today | 40/40 |
|---|---|---|
| Latest release | 2 days ago | 25/25 |
| Community size | GitHub stars | 15/15 |
| Open-issue trend | not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile | 10/20 |
| Total | 90/100 |
Wiki.js
Modern self-hosted wiki on Node.js with many auth and storage backends.
How this 90/100 was computed
| Last commit | 2 days ago | 40/40 |
|---|---|---|
| Latest release | 2 days ago | 25/25 |
| Community size | GitHub stars | 15/15 |
| Open-issue trend | not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile | 10/20 |
| Total | 90/100 |
BookStack
Simple self-hosted wiki organized as books, chapters and pages.
How this 87/100 was computed
| Last commit | today | 40/40 |
|---|---|---|
| Latest release | 11 days ago | 25/25 |
| Community size | GitHub stars | 12/15 |
| Open-issue trend | not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile | 10/20 |
| Total | 87/100 |
Documize
Docs-and-wiki platform for teams; development has gone quiet.
How this 55/100 was computed
| Last commit | 3 months ago | 24/40 |
|---|---|---|
| Latest release | 11 months ago | 12/25 |
| Community size | GitHub stars | 9/15 |
| Open-issue trend | not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile | 10/20 |
| Total | 55/100 |