Wiki.js is a powerful and extensible open source wiki software designed for creating and managing knowledge bases and documentation.

DokuWiki is a simple, versatile Open Source wiki software that requires no database, popular for corporate knowledge bases and project workspaces.

Outline is a modern, open-source team knowledge base and wiki offering intuitive editing, real-time collaboration, and powerful AI search for internal documentation.

XWiki is an open source Structured Wiki and knowledge management platform offering ready-to-use or custom solutions, on-premise or in the cloud.