Side by side
Archflow vs AutoUML
Both stand on ai diagram generators. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
Archflow brings architecture diagrams, user stories, and documentation into a collaborative web workspace. The Free plan has firm project and diagram limits, while Pro costs $5 a month and adds unlimited projects and collaboration.
Visit Archflow
Free plan Web
AutoUML provides a free way to create and adjust several UML diagram types in a browser. Review generated results for accuracy, and note that unlimited generations and other listed premium features are not yet available.
Visit AutoUMLThe facts
| Archflow | AutoUML | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | Not published |
| Runs on | Web | Web |
| Lowest paid plan | Pro: $5 a month | Free or on request |
| Plans published | 2 | 1 |
| Maker | Not published | Not published |
| Website | archflow.dev | autouml.com |
| On ai diagram generators | #8 of 32 | #12 of 32 |
Archflow: what it does well
- AI creates diagrams, stories, scope cards, and documentation.
- Diagram editor supports drag-and-drop and undo/redo.
- Kanban stories link directly to architecture diagrams.
- Pro includes unlimited projects and diagrams.
What to know first
- Free is limited to one project.
- Free allows three diagrams per project.
- AI prompts and selected project context go to OpenAI’s API.
AutoUML: what it does well
- No sign-up or credit card required.
- Generates five listed UML diagram types.
- Exports PNG and PDF without watermarks.
- PlantUML rendering does not use AI generation quota.
- Supports Gemini, OpenAI, and Grok API keys.
What to know first
- Free plan includes only a set of AI generations.
- Several premium features are listed as coming soon.
- Generated diagrams may need review for accuracy and suitability.
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