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Knowledge management systems that turn your notes into a compounding asset.
Graph-based note-taking with 1,000+ plugins. Local-first, markdown files, knowledge graph visualization.
All-in-one workspace. Databases, wikis, projects, AI. The standard for team knowledge bases.
Open-source outliner with graph view. Privacy-first, local storage, bidirectional linking.
Source-grounded research tool. Upload documents, zero hallucinations, direct citations.
The original bidirectional linking tool. Daily notes, graph database, block references.
Object-based note-taking. Tags and types instead of folders. AI-native.
AI-first note-taking. Auto-organizes by topic, semantic search, no folders needed.
End-to-end encrypted AI notes. GPT-4 built in, backlinks, instant sync.
Supertags and live search. Structured data meets note-taking. AI-native.
Visual knowledge management. Whiteboards + cards + journals for deep thinking.
Local-first, open-source Notion alternative. Object-based, end-to-end encrypted.
Read-it-later + highlight sync. Sends highlights to Obsidian, Notion, Logseq.
Desktop app for markdown knowledge bases. Visual graph, search, organize.
By Obsidian's CEO. Upgrades your knowledge management with auto-tagging, auto-linking, and deep vault integration. Build a connected second brain.
A second brain stores what you know. An AI brain acts on what you know. When you connect them, your AI agent reads your notes, references, and knowledge base to make better decisions without you repeating context.
AI Brain Pro ships with Obsidian templates, daily note structures, and a knowledge graph that your AI agent reads directly from your vault.
Connect your Notion workspace as a knowledge source. Your AI agent queries your databases, wikis, and docs for grounded answers.
Logseq, Reflect, Anytype, or plain markdown files. If your second brain writes markdown, our AI Brain reads it and builds context from it.
AI Brain Pro integrates with Obsidian, Notion, and any markdown-based knowledge management system. Your notes become your AI agent's memory. One download, own forever.