OpenAltFinder

Best Open Source Wiki Software in 2026

Collaborative platforms for creating and maintaining structured documentation, wikis, and team knowledge bases.

2 open source wiki software — ranked by GitHub stars. Browse all

Wiki.js

Wiki.js

Wiki.js | A modern and powerful wiki app built on Node.js

Alternative to:
NotionNotion
Docmost

Docmost

Open-source collaborative wiki and documentation platform, an alternative to Confluence and Notion.

Alternative to:
ConfluenceConfluence