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Open source alternatives to Confluence[009]

Confluence is Atlassian's team wiki for documentation, meeting notes and knowledge sharing, tightly linked to Jira. Below are 9 self-hostable open source alternatives, ranked by GitHub popularity.

// DEVELOPER TOOLS№ 001
AppFlowy

AppFlowy

DART

Bring projects, wikis, and teams together with AI

★ STARS

70.3k

⑂ FORKS

4.0k

OPEN PROJECT→
// CMS & CONTENT№ 002
Affine

Affine

★ FEATUREDTYPESCRIPT

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

★ STARS

68.1k

⑂ FORKS

4.8k

OPEN PROJECT→
// CMS & CONTENT№ 003
Outline

Outline

TYPESCRIPT

The fastest knowledge base for growing teams

★ STARS

38.4k

⑂ FORKS

3.3k

OPEN PROJECT→
// ANALYTICS№ 004
Huly

Huly

TYPESCRIPT

All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)

★ STARS

25.6k

⑂ FORKS

1.9k

OPEN PROJECT→
// CMS & CONTENT№ 005
Docs

Docs

PYTHON

A collaborative note taking, wiki and documentation platform that scales. Built with Django and React.

★ STARS

16.5k

⑂ FORKS

585

OPEN PROJECT→
// DATABASE№ 006
Colanode

Colanode

TYPESCRIPT

Open-source and local-first Slack and Notion alternative that puts you in control of your data

★ STARS

4.8k

⑂ FORKS

291

OPEN PROJECT→
// CMS & CONTENT№ 007
XWiki

XWiki

JAVA

The XWiki platform

★ STARS

1.2k

⑂ FORKS

627

OPEN PROJECT→
// CMS & CONTENT№ 008
Typemill

Typemill

JAVASCRIPT

Typemill is a flat-file CMS based on Markdown and designed for informational websites like documentation, manuals, and handbooks.

★ STARS

595

⑂ FORKS

68

OPEN PROJECT→
// CMS & CONTENT№ 009
Docmost

Docmost

TYPESCRIPT

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

★ STARS

20.0k

⑂ FORKS

1.3k

OPEN PROJECT→

// EDITOR'S TAKE

Outline is the cleanest drop-in for a company wiki, with fast search, sane permissions and good chat integration, but nothing like Confluence's macros. XWiki is the closer match on enterprise depth, with spaces, fine-grained rights and extensions, if you can tolerate its dated interface; AppFlowy and Affine are better suited to small teams who want docs and boards together.

// FREQUENTLY ASKED

What is the best open source Confluence alternative?

AppFlowy is the most popular open source Confluence alternative by GitHub stars (70,318 stars). The other 8 options are ranked above.

Are these Confluence alternatives self-hostable?

Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.

Are they free?

All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.

Best Open Source Confluence Alternatives (9+ projects) | Open Source Startups