Open-source alternatives guide · Updated 2026

Best open-source alternatives to Confluence

Compare the best free and open-source alternatives to Confluence — 7 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

Official product reference Confluence

7verified alternatives
5self-hosted signals
3categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 7 verified open-source alternatives to Confluence, including AFFiNE, Outline, Docmost, and Docs.

Projects appear across Productivity, Infrastructure, and Content & Collaboration. 5 options include a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Strongest repository-activity signal: AFFiNE · Jump to ranking · 70.5K stars

About Confluence

Proprietary team wiki and documentation platform.

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Ranked open-source alternatives to Confluence

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

AFFiNE

Open-source alternative to Confluence

ProductivityLicense not declared

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.

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

Best for: Individuals and small teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 35 hours ago

Key capabilities

rust

electron editor

markdown

Outline

Open-source alternative to Confluence

United StatesInfrastructureLicense not declaredSelf-hosted

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible. Review the official repository, license, release activity,

Best for: Infrastructure teams
Deployment: Self-hostable
License: License not declared
Activity: Updated 41 hours ago

Key capabilities

Docmost

Open-source alternative to Confluence

ProductivityAGPL-3.0Self-hosted

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

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion. Review the official repository, license, release

Best for: Individuals and small teams
Deployment: Self-hostable
License: AGPL-3.0
Activity: Updated 29 hours ago

Key capabilities

open-source

opensource knowledge-base

notion

Docs

Open-source alternative to Confluence

InfrastructureMITSelf-hosted

Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale with Django and React.

Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale wi

Best for: Infrastructure teams
Deployment: Self-hostable
License: MIT
Activity: Updated 31 hours ago

Key capabilities

Colanode

Open-source alternative to Confluence

ProductivityApache-2.0Self-hosted

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

Open-source and local-first Slack and Notion alternative that puts you in control of your data Review the official repository, license, release activity, and deployment documentati

Best for: Individuals and small teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 3 months ago

Key capabilities

self-hosted

electron

sqlite local-first

XWiki

Open-source alternative to Confluence

Content & CollaborationLGPL-2.1

The XWiki platform

The XWiki platform Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Knowledge teams
Deployment: Inspectable source
License: LGPL-2.1
Activity: Updated 26 hours ago

Key capabilities

Java

Github Actions

JavaScript

Typemill

Open-source alternative to Confluence

InfrastructureMITSelf-hosted

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

Typemill is a flat-file CMS based on Markdown and designed for informational websites like documentation, manuals, and handbooks. Review the official repository, license, release a

Best for: Infrastructure teams
Deployment: Self-hostable
License: MIT
Activity: Updated 1 month ago

Key capabilities

self-hosted cms

markdown documentation

How to choose a Confluence alternative

Map must-have capabilitiesList the workflows in Confluence you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about Confluence alternatives

What are the best open-source alternatives to Confluence?

OpenSourceChoice currently lists 7 projects with an explicit alternative relationship to Confluence. Catalog highlights include AFFiNE, Outline, and Docmost. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to Confluence free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to Confluence?

5 options in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate Confluence alternatives?

Map must-have Confluence workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.