OnUML is a lightweight, browser-based diagramming tool focused on Mermaid.js, enhanced with AI-assisted chat input. Designed for developers, technical writers, and software architects, it simplifies the creation of UML diagrams and flowcharts through natural language prompts and real-time rendering. It is a great UML diagram tool, allowing real-time UML preview. You can use it as an AI UML generator.
Comments, support and feedback
About this launch
OnUml was launched by sen yu in January 6th 2026.
- 0Upvotes
- 75Impressions
- #753Week rank