
Combines shared inboxes and team chat with AI assistance, but feels less optimized for solo speed.
OpenFlowKit records 1,437 monthly visits with -70.3% month-over-month growth and Free pricing. Superhuman records 6,514,241 monthly visits with +7.9% growth and Paid pricing.

The open-source diagramming studio for builders
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | openflowkit.com | superhuman.com |
| Pricing Model | Free | Paid |
| Monthly Visits | 1.44K (1,437) | 6.51M (6,514,241) |
| MoM Traffic Delta |
| -3.41K (-70.3%) |
| +477.48K (+7.9%) |
| Primary Market & Share | 🇻🇳 Vietnam (92.4%) | 🇺🇸 United States (56.8%) |
|---|
| Direct Visits / mo | 614 | 4.96M |
|---|
| User Rating | 4.6 | 4.5 |
|---|
| Supported Platforms | Website | Website |
|---|

The open-source diagramming studio for builders
Paste a public GitHub repository and OpenFlowKit reads its files in the browser to draw modules and connections, with every arrow cited to the source line it came from.
29 diagram tools for Claude Code, Codex, Cursor, VS Code, Windsurf or any MCP client, so an agent can draw on the diagram you have open, one undo away.
Write or paste Mermaid, D2 or Structurizr; the text and the canvas remain the same diagram, so you can round-trip between syntax and visuals.
Move from system context to containers to components in linked views that all stay grounded in a single architecture model.

The AI productivity suite with agents, email, and docs that work wherever you do
Superhuman Go brings AI agents into the tools and tabs you already use, with inline suggestions and context-aware chat.
Auto drafts, split inbox, auto labels, and auto archive keep your inbox manageable with minimal manual filing.
Collaborative documents that hold text, tables, data, and workflows in one connected surface.
Describe what you need in chat or use a visual builder, then share agents with teammates or a company directory.

Combines shared inboxes and team chat with AI assistance, but feels less optimized for solo speed.
AI diagrams and technical design docs built from your code and systems

AI diagramming, mind mapping and project tools with 50,000+ templates


Provides a smart inbox and AI writing tools across devices, but offers less advanced custom triage shortcuts.

Delivers cross-platform AI email management with strong privacy focus, but has a more traditional interface.

SpecialistAn AI executive assistant that works across your inbox, calendar and meetings

Free / Open-sourceOpen-source AI automation that unifies agents, flows and 770+ app integrations


AI-powered visual collaboration for diagrams, mind maps, and charts

Offers an AI-native email client with automated summaries and bundles, but lacks Superhuman's extreme speed focus.
One AI workspace for diagrams, docs, whiteboards and project delivery
An online whiteboard that mixes wireframing, diagramming, and AI agents

Transforms email threads into conversational chat workspaces with AI summaries, but changes the traditional email layout.
Combines shared inboxes and team chat with AI assistance, but feels less optimized for solo speed.
AI diagrams and technical design docs built from your code and systems
AI diagramming, mind mapping and project tools with 50,000+ templates
Provides a smart inbox and AI writing tools across devices, but offers less advanced custom triage shortcuts.
Delivers cross-platform AI email management with strong privacy focus, but has a more traditional interface.
SpecialistAn AI executive assistant that works across your inbox, calendar and meetings
Free / Open-sourceOpen-source AI automation that unifies agents, flows and 770+ app integrations
AI-powered visual collaboration for diagrams, mind maps, and charts
Offers an AI-native email client with automated summaries and bundles, but lacks Superhuman's extreme speed focus.
One AI workspace for diagrams, docs, whiteboards and project delivery
An online whiteboard that mixes wireframing, diagramming, and AI agents
Transforms email threads into conversational chat workspaces with AI summaries, but changes the traditional email layout.