Capacities
A knowledge base built around objects, not pages — people, books, projects, ideas — with AI that surfaces connections and answers questions across everything you've ever saved.
Overview
Capacities is a personal knowledge management tool built around objects — people, books, articles, projects, notes — rather than pages and folders. Every note, highlight, and idea is tagged as a typed object with properties, and Capacities creates automatic bi-directional links between related objects. The AI features surface relevant notes when you're writing, answer questions across your entire knowledge base, and help you see patterns you didn't know were there. Used by researchers, writers, and knowledge workers who need their second brain to do more than store — to connect and resurface.
Key Features
- Object-based structure
- Auto bi-directional links
- AI knowledge queries
- Daily notes
- Web clipper
- Cross-device sync
- • Object model creates natural connections that folder-based tools miss
- • AI surfacing of related notes reduces 'I know I captured this' friction significantly
- • Daily note format with backlinks integrates well with structured note-taking workflows
- • Object model requires upfront thinking about structure vs. just dumping notes
- • Smaller ecosystem than Obsidian or Notion