AI UML Diagram Generator

Describe your system in plain English and Diagramly's AI produces editable UML — class, sequence, activity, and more.

Generate a UML Diagram free
A UML activity diagram generated from a text prompt in Diagramly

How it works

  1. Step 1
    Describe your system

    Explain the structure or behavior you want to model.

  2. Step 2
    Generate with AI

    Diagramly chooses the right UML diagram type and renders it.

  3. Step 3
    Refine & export

    Edit and export to PNG or SVG.

Examples

“Activity diagram for a checkout process with a payment retry loop”
UML activity diagram

Frequently asked questions

Related generators

Class Diagram GeneratorSequence Diagram GeneratorFlowchart Generator

Ready to create your UML Diagram?

Describe it in plain English and let Diagramly's AI do the drawing.

Start for free