Best Internal Knowledge Bases in 2026

Outline

Fast, collaborative wiki for teams who need organized docs

Stars
38,752
Forks
3,321
Last commit
5 hours ago

Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.

Open Source Alternative to:

Notion

Docmost

Self-hosted wiki with AI, compliance, and real-time editing

Stars
20,495
Forks
1,333
Last commit
23 hours ago

Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and GDPR.

Open Source Alternative to:

Notion

XWiki

Open-source knowledge management and collaboration platform

Stars
1,258
Forks
625
Last commit
17 hours ago

XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.

Open Source Alternative to:

Notion

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Outline

Fast, collaborative wiki for teams who need organized docs

Stars
38,752
Forks
3,321
Last commit
5 hours ago

Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.

Open Source Alternative to:

Notion

Docmost

Self-hosted wiki with AI, compliance, and real-time editing

Stars
20,495
Forks
1,333
Last commit
23 hours ago

Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and GDPR.

Open Source Alternative to:

Notion

XWiki

Open-source knowledge management and collaboration platform

Stars
1,258
Forks
625
Last commit
17 hours ago

XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.

Open Source Alternative to:

Notion

Open Source Internal Knowledge Bases

A curated collection of the best open source platforms for creating internal knowledge bases for teams.

Outline

Docmost

XWiki

Outline

Docmost

XWiki