Capacities records 339,396 monthly visits with +5.7% month-over-month growth and Freemium, Paid pricing. Eraser records 534,396 monthly visits with -23.6% growth and Freemium, Paid, Contact for Pricing pricing.
A studio for your mind: object-based notes that stay connected
AI diagrams and technical design docs built from your code and systems
| Dimension / Metric | | |
|---|---|---|
| Official Domain | capacities.io | eraser.io |
| Pricing Model | Freemium, Paid | Freemium, Paid, Contact for Pricing |
| Monthly Visits | 339.4K (339,396) | 534.4K (534,396) |
| MoM Traffic Delta | +18.16K (+5.7%) | -164.9K (-23.6%) |
| Primary Market & Share | 🇺🇸 United States (29.5%) | 🇮🇳 India (39.6%) |
| Direct Visits / mo | 249.6K | 267.66K |
| User Rating | 4.5 | 4.6 |
| Supported Platforms | Website | Website |
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.
AI diagrams and technical design docs built from your code and systems
Generate architecture diagrams, flowcharts, sequence diagrams, and BPMN from a text prompt, code, Terraform, or an uploaded PDF, Word, Excel, PowerPoint, Draw.io, or Visio file.
Build interactive maps that sync with cloud accounts, repositories, and internal catalogs so the picture stays close to the real environment, with drill-down from org level to a single container.
Paste code or connect private and public Git repositories, Confluence, Notion, VS Code, and GitHub to keep diagrams grounded in actual implementation.
Run the agent toolkit in your own infrastructure under an MIT license and let MCP-compatible clients create, search, update, and export diagrams with OAuth or API tokens.
Offers an expansive infinite canvas for team brainstorming and visual workshops, but lacks Eraser's code-to-diagram automation.
Offers an expansive infinite canvas for team brainstorming and visual workshops, but lacks Eraser's code-to-diagram automation.
SpecialistAutomatically embeds visual diagrams directly inside text documents, though it lacks Eraser's specialized cloud architecture focus.
SpecialistAutomatically embeds visual diagrams directly inside text documents, though it lacks Eraser's specialized cloud architecture focus.
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.
Provides extensive drag-and-drop shapes and templates for general diagrams, but weaker automated code-to-diagram capabilities than Eraser.
Provides extensive drag-and-drop shapes and templates for general diagrams, but weaker automated code-to-diagram capabilities than Eraser.
SpecialistOffline visual note-taking on an infinite canvas
SpecialistOffline visual note-taking on an infinite canvas
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.
Combines team whiteboarding, documentation, and diagramming in one platform, but less tailored for automated codebase architecture.
Combines team whiteboarding, documentation, and diagramming in one platform, but less tailored for automated codebase architecture.
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 tool specifically tailored for database schema visualization and ER diagrams, but lacks general system documentation features.
Free / Open-sourceOpen-source tool specifically tailored for database schema visualization and ER diagrams, but lacks general system documentation features.
Stronger focus on standard Mermaid syntax and code-driven diagrams, but lacks Eraser's native autonomous architecture doc generation.
Stronger focus on standard Mermaid syntax and code-driven diagrams, but lacks Eraser's native autonomous architecture doc generation.
