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Best Multi-User Notes & Knowledge Base for self-hosting

The 26 best Multi-User notes & knowledge base you can self-host, ranked by community traction.

AFFiNE

Notes & Knowledge Base

Workspace for docs, whiteboards and databases

Replaces Notion, Miro

★ 72.9k Medium setup MIT

Outline

Notes & Knowledge Base

Team knowledge base and wiki

Replaces Notion, Confluence

★ 40.7k Medium setup BSL-1.1

Khoj

Notes & Knowledge Base

Self-hostable AI assistant over your personal notes

Replaces Notion AI, Evernote

★ 37.5k Medium setup AGPL-3.0

Wiki.js

Notes & Knowledge Base

Modern and powerful open-source wiki

Replaces Confluence, Notion

★ 29k Medium setup AGPL-3.0

Docmost

Notes & Knowledge Base

Open-source collaborative wiki and documentation

Replaces Confluence, Notion

★ 21.8k Medium setup AGPL-3.0

BookStack

Notes & Knowledge Base

Simple self-hosted documentation and wiki platform

Replaces Confluence, Notion

★ 19k Easy setup MIT

Notesnook

Notes & Knowledge Base

Private, end-to-end encrypted note-taking app

Replaces Evernote, OneNote

★ 14.6k Medium setup GPL-3.0

Athens Research

Notes & Knowledge Base

Open-source networked note-taking and knowledge graph

Replaces Roam Research, Obsidian

★ 6.3k Medium setup EPL-1.0

Livebook

Notes & Knowledge Base

Realtime collaborative notebook app based on Markdown that supports

★ 5.9k Medium setup Apache-2.0

DokuWiki

Notes & Knowledge Base

Simple, file-based wiki without a database

Replaces Confluence

★ 4.7k Easy setup GPL-2.0

WizNote

Notes & Knowledge Base

Cross-platform note-taking app with a self-hosted server

Replaces Evernote, OneNote

★ 2.7k Medium setup GPL-3.0

Jotty

Notes & Knowledge Base

Lightweight but powerful alternative for managing your personal, file

★ 2k Medium setup AGPL-3.0

Atomic Server

Notes & Knowledge Base

Knowledge graph database with documents (similar to Notion), tables,

★ 1.6k Medium setup MIT

Writing

Notes & Knowledge Base

Lightweight distraction-free text editor, in the browser (Markdown

★ 1.1k Medium setup MIT

Many Notes

Notes & Knowledge Base

Markdown note-taking web app designed for simplicity

Replaces Obsidian, Notion

★ 1.1k Medium setup MIT

Notesnook Sync Server

Notes & Knowledge Base

Self-hosted backend for the Notesnook encrypted notes app

Replaces Evernote, OneNote

★ 923 Medium setup AGPL-3.0

Notabase

Notes & Knowledge Base

Personal knowledge base for networked thinking

Replaces Roam Research, Obsidian

★ 912 Hard setup AGPL-3.0

Note Mark

Notes & Knowledge Base

Minimal web-based Markdown notes app

★ 766 Medium setup AGPL-3.0

DailyTxT

Notes & Knowledge Base

Encrypted diary Web application to save your personal memories of each

★ 504 Medium setup MIT

TeamMapper

Notes & Knowledge Base

Host and create your own mindmaps

★ 499 Medium setup MIT

WiseMapping

Notes & Knowledge Base

Web-based mind mapping for visual knowledge capture

Replaces MindMeister, XMind

★ 308 Medium setup WiseMapping-OSL-2.0

Mindwendel

Notes & Knowledge Base

Self-hosted brainstorming and idea capture board

Replaces Miro, Google Keep

★ 140 Medium setup Apache-2.0

LibreKB

Notes & Knowledge Base

Web-based knowledge base solution

★ 61 Medium setup GPL-3.0

Digimindmap

Notes & Knowledge Base

Create simple mindmaps (documentation in French)

Medium setup AGPL-3.0

QST

Notes & Knowledge Base

Online assessment software

Medium setup GPL-2.0

memEx

Notes & Knowledge Base

Structured personal knowledge base, inspired by zettlekasten

Medium setup AGPL-3.0

Every option here is open-source and self-hostable, tagged Multi-User within the notes & knowledge base category. Compare them on the individual app pages for setup difficulty and resource requirements.