Turn your object-oriented design ideas into clean UML class diagrams. Describe your classes and relationships in plain English — ArchGPT draws the rest.
Generate Class DiagramClass diagrams are the backbone of object-oriented design. They document the classes in your system, their attributes and methods, and how they relate through inheritance, composition and association.
With ArchGPT you skip the syntax entirely. Type your domain model in plain words — entities, their fields, and how they connect — and our AI produces a proper UML class diagram ready for documentation, code review, or refactoring.
Entities like Customer, Order, Product and Invoice with their attributes and relationships.
Base classes, subclasses and interfaces — perfect for planning OOP design patterns.
Sketch entity relationships before writing Django, SQLAlchemy, Hibernate or EF Core models.
Visualize existing code structure to spot duplication and design smells.
Try a prompt: "A Library has many Books. A Book has one Author. Each Book can have multiple Copies, and each Copy is borrowed by one Member."
Everything you need to know about generating class diagrams.