21 Best Open Source Notion Alternatives
A curated collection of the 21 best open source and self-hosted alternatives to Notion in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Notion in 2026? The top open-source alternative is Macro Docs — Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email..
Other highly rated open-source Notion alternatives include AppFlowy, Affine and Memos.
Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email.
Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email.
Open source collaborative workspace combining notes, databases, and AI with full data ownership, offline support, and self-hosting options.
Open source collaborative workspace combining notes, databases, and AI with full data ownership, offline support, and self-hosting options.
Open-source Notion & Miro alternative with docs, whiteboards, databases, and AI in one local-first workspace
AFFiNE is a next-generation workspace that merges docs, whiteboards, and databases into a single local-first platform. Built for creativity and productivity, it combines the best of Notion, Miro, and Obsidian with integrated AI capabilities. - All-in-one workspace: Unified interface for documents, whiteboards, and databases - Local-first architecture: Works offline with real-time sync across devices - AI integration: Built-in AI assistant for writing, drawing, and planning - Collaboration tools: Edgeless whiteboards for limitless team creativity - Team hub: Unified document space for teams of all sizes - Cross-platform: Available as desktop, web, and mobile apps - Extensible: Supports templates and custom workflows - Privacy-focused: Self-hosting and private cloud options available AFFiNE is open-source and can be self-hosted for complete data control. The platform supports private cloud deployments and offers enterprise solutions with dedicated support. The codebase is available on GitHub under the MIT license, making it suitable for both personal and commercial use.
Memos is a self-hosted, open-source note-taking app built around a private timeline. Write in Markdown, skip the folder setup, and keep your data on your own server.
Memos is a self-hosted, open-source note-taking app built around a private timeline. Write in Markdown, skip the folder setup, and keep your data on your own server.
Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end encrypted sync.
Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end encrypted sync.
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.
Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.
Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and Notion.
Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and Notion.
Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and GDPR.
Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and GDPR.
Transform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.
Transform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
A local-first, encrypted workspace for notes, tasks, databases, and chats. Your data stays on your device, syncs peer-to-peer, and never passes through a central server.
A local-first, encrypted workspace for notes, tasks, databases, and chats. Your data stays on your device, syncs peer-to-peer, and never passes through a central server.
Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.
Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.
XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.
XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.
A privacy-focused, offline-first note-taking app that stores everything on your device, with Markdown, note linking, file attachments, LaTeX math, and bring-your-own sync.
A privacy-focused, offline-first note-taking app that stores everything on your device, with Markdown, note linking, file attachments, LaTeX math, and bring-your-own sync.
A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.
A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.
A versatile project management platform that combines task organization, team collaboration, and workflow automation in one intuitive interface.
A versatile project management platform that combines task organization, team collaboration, and workflow automation in one intuitive interface.
Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.
Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.
Visual database and workflow automation tool with AI-powered features and 6,000+ app integrations
AITable.ai is a visual database and workflow automation platform that simplifies data organization and task automation for personal and enterprise use. It combines spreadsheet-like interfaces with database functionality, AI-powered analytics, and seamless integrations with over 6,000 apps via Zapier, Make, Pabbly, Activepieces, and Albato. - Visual Database Interface: Hybrid spreadsheet-database UI for intuitive data management - 6,000+ App Integrations: Connect with tools via Zapier, Make, Pabbly, Activepieces, and Albato - AI-Powered Analytics: Business Intelligence Copilot for data analysis and visualization - Automated Forms: One-click form creation with customizable pre-filled content for lead tracking - Workflow Automation: Code-free automation for repetitive tasks (Slack messages, emails, etc.) - AI Writing Assistant: Generate high-quality content for emails, ads, blogs, and more - Multi-View Workspaces: Organize work in lists, boards, tables, calendars, or mind maps - AI Customer Service Agent: Build custom ChatGPT-powered chatbots for support and sales AITable.ai is a cloud-based SaaS platform with no self-hosting option currently available. It offers API access for custom integrations and provides enterprise-grade security features.
About Notion
An all-in-one workspace for note-taking, project management, knowledge sharing, and collaboration across teams.