Best Open Source Internal Knowledge Base in 2026
Platforms for building internal wikis, documentation hubs, and knowledge bases for teams and organizations.
The most popular pick this year is Wiki.js with 28,302 GitHub stars, but all 2 options below are worth considering depending on your needs.
2 open source internal knowledge base — ranked by GitHub stars. Browse all
Wiki.js
Wiki.js | A modern and powerful wiki app built on Node.js
Notion
Docmost
Open-source collaborative wiki and documentation platform, an alternative to Confluence and Notion.
ConfluenceHow we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted internal knowledge base →