Archflow vs OpenFlowKit
Archflow
archflow.dev
OpenFlowKit
openflowkit.comSide by side
| Figure | Archflow | OpenFlowKit |
|---|---|---|
| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · AI Diagram Generators | 9.0 (#4) | 7.1 (#30) |
| AI assistant | The Flowy assistant creates architecture diagrams, stories, scope cards and technical documents from natural-language descriptions. | Flowpilot AI lets users chat with a diagram in natural language to build and style blocks. |
| Collaboration | Real-time collaboration includes live cursors, presence indicators, synchronized editing, comments, and activity feeds. | Users can share a link and collaborate through peer-to-peer WebRTC with live cursors. |
| Privacy | The privacy policy says Archflow processes data under UK GDPR and the Data Protection Act 2018, and does not sell, rent, or trade personal data. | The site describes storage as local-first, says diagrams stay on the user's machine, and says there is no cloud tracking or forced syncing. |
| Purpose | Archflow is a collaborative platform for designing software systems with AI, including architecture diagrams, user stories, scope cards, and technical documentation. | OpenFlowKit is a free, open-source diagram tool for builders who write code or use drag and drop. |
Plans
In their own words
Archflow
Archflow is a web platform for collaboratively designing software systems with AI. Its assistant can create architecture diagrams, user stories, scope cards, and technical documentation from natural-language input. The visual editor supports UML classes, interfaces, components, databases, and services, with drag-and-drop creation and undo/redo. Teams can edit together using synchronized changes, live cursors, presence indicators, comments, and activity feeds. Kanban boards track user-story status, estimates, and acceptance criteria, and link stories to architecture diagrams. Documentation is created in a Markdown editor with live preview and categories, and can also be AI-generated. The Free plan costs nothing and allows one project and three diagrams per project. Pro costs $5 a month and includes unlimited projects and diagrams, AI-generated content, real-time collaboration, and priority support. Archflow says prompts and selected project context are sent to OpenAI's API, and AI chat history is stored on its servers.
OpenFlowKit
OpenFlowKit has no write-up on Specifiction yet; its figures are above.