Capacities
Organize notes as typed objects, people, books, projects, that link automatically, building a connected knowledge base without manual folders or tags.
The verdict on Capacities: Anyone who wants their notes organized as typed objects with real connections, not just pages in folders Capacities is for the note-taker who finds folders and tags inadequate but finds Notion too freeform for organizing knowledge. Pricing: Free (5GB) / ~$10-12/mo Pro (annual).
Best For
Anyone who wants their notes organized as typed objects with real connections, not just pages in folders
Standout Feature
AI surfaces related notes automatically, reducing the 'I know I captured this somewhere' problem
TL;DR
A genuinely different and thoughtful note-taking model, it demands more upfront structure thinking than just dumping notes.
Alternatives
Fit Score: use-case reference
How this is scoredCapacities scored 1 to 5 on five dimensions for the named use cases below. Part of our catalog-wide use-case reference, not a product-quality review rating.
Knowledge worker who wants notes organized as typed objects with automatic connections instead of folders or tags
4.0/5- Capability
- 5/5
- Reliability
- 4/5
- Value
- 4/5
- Ease
- 3/5
- Compatibility
- 4/5
The object model types every note as a person, book, project, or article with real properties, and AI surfacing of related notes reduces the 'I know I captured this somewhere' problem that folder-based tools miss.
Someone who wants to dump notes quickly with no upfront structure thinking
2.6/5- Capability
- 2/5
- Reliability
- 3/5
- Value
- 3/5
- Ease
- 2/5
- Compatibility
- 3/5
Cons are explicit that the object model requires upfront thinking about structure rather than just dumping notes and sorting later, which is the honest tradeoff against a simpler tool.
Editorial judgment grounded in this tool's own published pricing, features, and our existing pros and cons, not a certification or a measured benchmark. Product quality is assessed separately under our review methodology.
Overview
Not yet reviewedProduct quality is assessed from original evidence. How reviews work.
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.
The source of the legacy catalog rating and review count has not been substantiated. Neither is presented here as a verified review rating or included in review structured data.
Workflow Fit Scores are separate, use-case-specific editorial judgments, not user-review averages. Read the Fit Score methodology.
- • 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
Key Features
- Object-based structure
- Auto bi-directional links
- AI knowledge queries
- Daily notes
- Web clipper
- Cross-device sync
Trust & Data
Verified 2026-09
- Training on your data
- NoCapacities' AI-privacy documentation is unusually explicit: AI features are fully opt-in, and when used via Capacities' own bundled AI, data is not used to improve or train the AI models, with third-party providers processing content only transiently under enterprise data-processing agreements. This guarantee is conditional: if a user supplies their own API key to a provider, that provider's own training practices apply instead. The main legally binding privacy policy is in German; the English version is an explicitly non-binding translation.
- Compliance
- GDPR
- Retention
- Registration and account personal data is deleted within four weeks of account deletion; public content data is retained but anonymized once the account is deleted.
- Export
- Not published
Sources: capacities.io, docs.capacities.io/data protection, docs.capacities.io/ai privacy
As published by the vendor. Verify independently before purchase decisions.
Our Take
The object model, typing every note as a person, book, project, or article with real properties, creates automatic connections that folder-based tools simply miss. The AI surfaces related notes to reduce the problem of knowing you captured something but not finding it. The honest tradeoff is that the object model requires upfront thinking about structure, you cannot just dump notes and sort them later. Obsidian has a larger plugin ecosystem; Capacities is the cleaner choice for anyone who wants meaningful connections without building them manually.
Workflows Using This Tool
Step-by-step playbooks whose entries name Capacities. The step shown is where the workflow uses it.