Model Your System's Structure with Our AI Class Diagram Generator

Powered by AI and Mermaid.js. Describe your diagram in the chat below.

Your AI-generated diagram will appear here.

What is a Class Diagram?

A class diagram is a cornerstone of object-oriented modeling. It illustrates the classes in a system, their attributes, methods, and the relationships between them. Describe your system's components, and our AI will build the diagram for you.


How to Create a Class Diagram in 3 Simple Steps

  • 1. **Define Your Classes:** Describe your classes and their relationships. For example, 'A Car class has a 'make' attribute and a 'startEngine()' method. It has a composition relationship with an Engine class.'
  • 2. **Generate with AI:** Press 'Send'. Our AI will parse your description and generate the corresponding UML class diagram code.
  • 3. **Export & Use:** Your class diagram will appear instantly. Copy the code, share a link, or ask the AI to add more classes or methods.

Frequently Asked Questions

What kinds of relationships can I model?

You can model all standard UML relationships, including association, aggregation, composition, and inheritance. Just describe the relationship in plain English.

How do I specify data types or visibility?

You can include those details in your prompt, like 'The Customer class has a private string 'name' and a public method 'getHistory()'.