A collaborative note-taking, wiki, and documentation platform that scales. Built with Django and React. Open source alternative to Notion, Confluence, or Outline.
Cost / License
- Free
- Open Source
Application types
Platforms
- Online
- Self-Hosted
- Docker




Capacities is described as 'Capture and organize knowledge with a network-based note system, providing a novel approach to creating a distinct and personalized idea network' and is a Note-taking tool in the office & productivity category. There are more than 50 alternatives to Capacities for a variety of platforms, including Mac, Web-based, Windows, iPhone and Android apps. The best Capacities alternative is Obsidian, which is free. Other great apps like Capacities are Joplin, Logseq, Anytype and Notion.
A collaborative note-taking, wiki, and documentation platform that scales. Built with Django and React. Open source alternative to Notion, Confluence, or Outline.




Reor is an AI-powered desktop note-taking app: it automatically links related ideas, answers questions on your notes and provides semantic search. Everything is stored locally and you can edit your notes with an Obsidian-like markdown editor.

Dendron is an open-source, local-first, markdown-based, note-taking tool built on top of VSCode. It supports all the usual features you would expect like tagging, backlinks, a graph view, split panes, and so forth.



Craft offers document creation with stunning visuals, seamless navigation, and effortless sharing. Nest notes, use AI for summaries, and export in multiple formats.




Nuclino is a unified workspace where teams can bring all their knowledge, docs, and projects together in one place. It’s a modern, simple, and blazingly fast way to collaborate, without the chaos of files and folders, context switching, or silos.



Secure device-synced notepad using AES-GCM-256 encryption to protect confidential data. Features include a tree-structure for note organization, historical changes tracking, and collaboration options. Supports all major platforms with cloud sync and offline access.




Flexible note-taking and writing tool featuring advanced markdown with in-line images, cross-note links, live preview, hashtags, Focus Mode, plain text storage, iCloud sync, one-tap formatting, smart data recognition, and multiple export formats for portability.




Seamlessly integrates words, data, and team collaboration, eliminating the need to switch applications. Features include customizable views, real-time collaboration, full-text search, and calendar integration, empowering teams to scale and coordinate tasks efficiently with a WYSIWYG editor.




As easy to use as a word document or bulleted list, and as powerful for finding, collecting, and connecting related ideas as a graph database. Collaborate with others in real time, or store all your data locally.

acreom is an actionable personal knowledge base for developers. It helps developers ship faster by centralizing personal and team context in one place.






Minimalist productivity platform offers centralized notes, task management, meeting capture with audio summaries, inbox processing, and Markdown editing, all enhanced by AI prioritization, custom prompts, backlinks, and flexible workflows, supporting multiple methodologies.




Heptabase is a visual note-taking tool that helps you make sense of your learning, research, and projects. It helps you get into the flow of thinking and brings together everything you need to do better research.




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