Open Source Notion Alternatives
Build your workspace without limits. Open source Notion alternatives for notes, wikis, databases, and team collaboration on your infrastructure.
Notion has become a mainstay for individuals and teams looking to organize their thoughts, projects, and knowledge in a flexible environment. It allows users to create databases, kanban boards, wikis, and documents all within a single platform. However, some users find themselves looking for Notion alternatives because of vendor lock-in and the lack of control over their data. The closed source nature can be a deterrent for those prioritizing privacy and customization.
Key features driving users to search for alternatives include its robust database functionality, the interconnectedness of pages, and its powerful AI integration (Notion AI). While these features are appealing, they come with a subscription cost and data residing on Notion’s servers. Users may also desire more granular control over access permissions or advanced collaboration features.
Common scenarios where users need a solution like Notion include project management, knowledge base creation, note-taking for students/researchers, and team collaboration. However, the complexities of Notion can be overwhelming for simple use cases. Many prefer open source solutions offering similar functionality without the cost and limitations of a proprietary platform.
What Notion Offers
Database Functionality
Notion's databases allow for flexible organization of information, with customizable views like tables, kanban boards, and calendars.
AI Integration (Notion AI)
Built-in AI tools assist with writing, summarizing, and automating tasks within the workspace.
Page Interconnectivity
Pages can be easily linked together, creating a non-linear knowledge base and fostering connections between ideas.
Project Management
Kanban boards, timelines, and task lists help teams manage projects and track progress effectively.
Common Use Cases
Personal Knowledge Base
Creating a centralized repository for notes, research materials, and personal projects.
Team Collaboration
Sharing documents, managing tasks, and coordinating projects within a team environment.
Project Management
Organizing complex projects, tracking progress, and collaborating with stakeholders.
Note-Taking & Documentation
Capturing meeting notes, writing documentation, and creating detailed guides.
Open Source Alternatives
AppFlowy
AI Assistants · Collaboration · Productivity
The open-source AI workspace that puts your data, your rules — with local LLMs, CRDT collaboration, and full self-hosting built in.
AFFiNE
Collaboration · Note Taking · Productivity
Write, draw, and plan in one infinite canvas — the open-source alternative to Notion and Miro that keeps your data yours.
Outline
Collaboration · Knowledge Management
A fast, real-time collaborative knowledge base for growing teams built on React, Node.js, and ProseMirror.
Wiki.js
Collaboration · Knowledge Management
A modern, self-hosted wiki platform built on Node.js with a rich plugin ecosystem for authentication, search, storage, and rendering that adapts to any team's infrastructure.
Huly Platform
Collaboration · Project Management · Team Chat
Open-source all-in-one workspace that replaces Linear, Jira, Slack, and Notion for product and engineering teams.
Docmost
CMS · Collaboration · Note Taking
Self-hosted collaborative wiki and knowledge base with real-time editing, diagrams, AI assistance, and enterprise access controls — a modern alternative to Confluence and Notion.
Tolaria
Note Taking
A free, open-source, local-first desktop app for managing markdown knowledge bases on macOS, Windows, and Linux — for second brains, company docs, or AI assistant memory and procedures.
NoteGen
AI Assistants · Knowledge Management · Note Taking
Capture anything first, then let AI transform your scattered records into polished, structured Markdown notes with RAG-powered knowledge retrieval.
anytype-ts
Collaboration · Knowledge Management · Note Taking
A local-first, end-to-end encrypted knowledge OS that lets you build notes, tasks, wikis, and entire apps — with your data stored offline and synced peer-to-peer.
Kan
Project Management
An open-source, self-hostable Kanban board built as a modern Trello alternative with team workspaces, board permissions, and Trello import.
OpenKnowledge
Code Editors · Knowledge Management · Note Taking
A beautiful, local-first markdown IDE that turns any git repo into a live collaborative workspace for humans and AI coding agents like Claude, Codex, and OpenCode.
NoteDiscovery
Knowledge Management · Note Taking · Productivity
A self-hosted markdown knowledge base with MCP-powered AI integration, graph views, LaTeX math, and built-in drawing — your notes stay on your server, forever.
Alexandrie
Collaboration · Knowledge Management · Note Taking
The open-source, offline-first Notion, Obsidian & Confluence alternative with multi-tenant teams, OIDC/SSO, and one-command Docker deployment.
Owlistic
Note Taking · Productivity
Self-hosted, open-source real-time note-taking and task management with WYSIWYG editing, live sync, and role-based access control.
Kuku
Note Taking
A local-first, open-source Markdown knowledge workspace for macOS — plain files, personal wiki and Second Brain workflows, AI-assisted diffs, and encrypted sync, built as an Obsidian alternative.
