What is ChatUML?

ChatUML is an AI‑assisted diagram generator available on desktop devices. It enables users to create professional UML, flowcharts, and architecture diagrams quickly by interpreting textual descriptions. The application supports exporting diagrams in common formats for documentation or collaboration.

It includes built‑in documentation, examples, and a blog for learning best practices. Users can save and manage diagrams within their account until the service shuts down on April 30, 2026. Support is provided via email at [email protected]. The tool is suited for individual developers, engineering teams, and architects needing clear visual representations of ideas.

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ChatUML's key features

AI-assisted diagram generation
Desktop-only diagram generator
Diagram export functionality
Account-based diagram saving
Architecture visualization tool
Team collaboration support

ChatUML use cases

Generate comprehensive UML class diagrams from plain English specifications for a new microservice, exporting to PNG and integrating directly into Jira tickets without manual diagramming
Create an architectural flowchart for a legacy system migration plan, using ChatUML's built‑in tutorials to guide developers and saving the diagram to a shared account for version control
Collaboratively draft a sequence diagram for a new feature in real-time, leveraging ChatUML's AI editor to auto‑format and export to SVG for inclusion in technical documentation