Overview

Capacities — A studio for your mind — structure your knowledge with objects

Capacities takes a unique object-based approach to note-taking, treating books, people, ideas, and projects as distinct objects with custom properties. This structured approach helps build rich personal knowledge graphs while maintaining the flexibility of free-form notes.

Object-based notes

Custom object types

Graph view

Daily notes

Features & capabilities

Everything it does, in plain English.

FeatureObject-based notesIncluded

FeatureCustom object typesIncluded

FeatureGraph viewIncluded

FeatureDaily notesIncluded

FeatureAI writing assistantIncluded

PlatformsWeb

The honest take

Where it shines, where it stumbles.

✓ Pros

✓Unique object approach
✓Beautiful design
✓Good free tier

! Watch-outs

!Small community
!Less mature than Obsidian
!Limited plugins

Who it's for

Where Capacities pays for itself fast.

— Use case

Book notes

— Use case

Research organization

— Use case

Personal CRM

— Use case

Project notes

Community reviews

Share your take on Capacities

4.1

★★★★★

2 reviews

5★

4★

3★

2★

1★

Chelsea H. ✓ Verified

SEO Specialist · Cloudflare

★★★★★

8 months ago

Incredible — highly recommend

Game changer for my workflow. The API is well-documented and easy to work with. The accuracy has improved significantly with recent model updates.

Brittany P. ✓ Verified

Senior Developer · Airbnb

★★★★★

10 months ago

A must-have for any professional

Can't imagine working without it now. The recent updates have addressed most of my initial concerns. It integrates well with VS Code / Slack / Notion — my daily drivers. The ROI was clear within the first week of using it.

James D. ✓ Verified

ML Engineer · Y Combinator startup

★★★★★

1 years ago

A must-have for any professional

Blown away by the quality. The onboarding flow was smooth and I was productive from day one. The ROI was clear within the first week of using it. The ROI was clear within the first week of using it. A staple in my tech stack now.

Heather L. ✓ Verified

Founder · Apple

★★★★★

1 years ago

Best in class, no question

Best-in-class, period. The ROI was clear within the first week of using it. The free tier is genuinely generous compared to competitors. I've recommended this to at least 10 colleagues already. Five stars — no hesitation.

Alternatives

Similar tools worth comparing.

GitHub Copilot

AI Coding AssistantAI Coding Assistant

AI pair programmer by GitHub and OpenAI

PaidVS CodeOpenAI

★4.6(15)♥ 100531

$10/mo

SWE Agent

AI Coding AssistantAI Coding Assistant

SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]

GitHubGitHub TrendingAgent

★4.2(4)♥ 13197

Open source; commercial offering needs verification

Tableau

AI Coding AssistantAI Coding Assistant

Leading data visualization and business intelligence platform with AI features

★4.1(3)♥ 7863

Viewer $15/mo; Explorer $42/mo; Creator $70/mo

Klaviyo

AI Coding AssistantAI Coding Assistant

Email and SMS marketing platform purpose-built for e-commerce brands

★4.1(2)♥ 7714

Free up to 500 contacts; Email from $45/mo; Email+SMS from $60/mo

Eleven Labs

AI Coding AssistantAI Coding Assistant

Generate natural-sounding speech, clone voices, and create audio content with industry-leading AI.

★4.1(1)♥ 3553

Free tier (10,000 chars/mo); Starter at $5/month; Creator at $22/month; Pro at $99/month

Runway

AI Coding AssistantAI Coding Assistant

AI video generation and editing platform for creators

★4.1♥ 3013

FreeStandard $15/mo / Pro $35/mo