Highlight the web, learn in public, and build your AI clone
Highlight the web, learn in public, and build your AI clone
Capacities records 339,396 monthly visits with +5.7% month-over-month growth and Freemium, Paid pricing. Wonderfall records 0 monthly visits with — growth and Freemium pricing.

Cure tab anxiety with AI bookmarking, linked notes and browsing sessions
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | capacities.io | chromewebstore.google.com |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 339.4K (339,396) | 0 (0) |
| MoM Traffic Delta | +18.16K (+5.7%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (29.5%) | 🌐 Global (—) |
| Direct Visits / mo | 249.6K | 0 |
| User Rating | 4.5 | 1.8 |
| Supported Platforms | Website | Browser Extension |

A studio for your mind: object-based notes that stay connected
Model people, books, projects and meetings as typed objects with their own properties, instead of forcing them into folders.
See every link to a note at a glance, and let Capacities surface unlinked mentions where you already wrote about the same thing.
Capture thoughts without deciding where they belong first, then link and refine them later.
On paid plans, an AI assistant works alongside your notes, and image, PDF and weblink analysis turns outside material into usable content.

Cure tab anxiety with AI bookmarking, linked notes and browsing sessions
Save pages in one click with AI-generated tags and automatic categories, so links stay findable instead of buried in tabs.
Capture ideas without leaving the page, with each note automatically linked back to its source for easy reference.
Group related bookmarks and notes into Sessions and revisit them in a timeline view to retrace your research.
AI tags and automatic categorisation reduce manual filing, so you spend less time organising and more time reading.
Highlight the web, learn in public, and build your AI clone
Highlight the web, learn in public, and build your AI clone

A prompt library and management layer for ChatGPT and other AI models
A prompt library and management layer for ChatGPT and other AI models
Delivers a cleaner document editing experience with beautiful typography, but lacks network graph views and typed object modeling.
Delivers a cleaner document editing experience with beautiful typography, but lacks network graph views and typed object modeling.
Organize, search and export your AI chats across ChatGPT, Gemini, Claude and Grok
Organize, search and export your AI chats across ChatGPT, Gemini, Claude and Grok
SpecialistOffline visual note-taking on an infinite canvas
SpecialistOffline visual note-taking on an infinite canvas

A private, visual AI space to save and remember anything — no folders, no tagging
A private, visual AI space to save and remember anything — no folders, no tagging

SpecialistADHD-friendly AI assistant for notes, email and tasks
SpecialistADHD-friendly AI assistant for notes, email and tasks

Offers superior visual whiteboarding and spatial structuring for complex research, but lacks Capacities' typed object database system.
Offers superior visual whiteboarding and spatial structuring for complex research, but lacks Capacities' typed object database system.
Summarize, bookmark and write with AI right in your browser
Summarize, bookmark and write with AI right in your browser

SpecialistYour files, notes and meetings in one drive — with an AI that knows all of it.
SpecialistYour files, notes and meetings in one drive — with an AI that knows all of it.
Automates note organization and retrieval via conversational AI, but lacks Capacities' manual typed object structure and calendar views.
Automates note organization and retrieval via conversational AI, but lacks Capacities' manual typed object structure and calendar views.

Free / Open-sourceOpen-source note-taking with backlinks, local Markdown and optional AI
Free / Open-sourceOpen-source note-taking with backlinks, local Markdown and optional AI