Wiki.js

Wiki.js is a team wiki and documentation platform rather than a personal Notion-style workspace. Released under AGPL-3.0 and built on Node.js with a Vue frontend, it is aimed at organizations writing shared knowledge bases, runbooks, and internal docs — not at solo users building a second brain. It uses traditional pages, hierarchical navigation, and a version history instead of Notion's block databases.

Wiki.js runs as a Node.js process and supports PostgreSQL, MySQL, MariaDB, MS SQL Server, or SQLite as the backing store, so you can pick whichever database your team already operates. The project is designed to run on anything from a Raspberry Pi to a cloud VM, with Docker images and step-by-step install guides for Linux, Windows, macOS, and Kubernetes. The official docs at docs.requarks.io cover each path.

Auth is pluggable: Wiki.js ships modules for local accounts, social login (Google, GitHub, Microsoft, Slack, Discord, etc.), and enterprise SSO via LDAP, SAML, CAS, Auth0, Okta, Azure AD, plus generic OAuth2 and OIDC. Two-factor authentication can be layered on top of supported modules, and pages can be marked public, fully private, or mixed — making it well suited to internal company documentation.

The core application is fully open source under AGPL-3.0 and free to self-host with no per-seat fees. The maintainers (NGPixel / requarks) fund development through GitHub Sponsors and Open Collective backers, while the commercial Wiki.js cloud and priority support plans are offered as optional services on top of the same codebase.