Describe your classes, properties, and relationships — our AI builds a UML class diagram with correct inheritance, composition, and association lines.
Explain the classes, their properties, methods, and how they relate to each other in plain language.
Our AI identifies classes, attributes, methods, and relationships (inheritance, composition, aggregation) to produce valid Mermaid class diagram syntax.
Refine class members, adjust visibility modifiers, and add missing relationships in the full editor. Export as PNG, SVG, or PDF.
View the complete syntax reference, examples, and best practices for Mermaid class diagrams.
Describe what you need above and let AI do the work — or open the full editor to build from scratch.
Open Full EditorDescribe your database tables and relationships in plain English — our AI generates a professional entity-relationship diagram with correct cardinality.
Describe how components, services, or people interact — our AI creates a clear sequence diagram showing the exact message flow.
Describe the states and transitions of your system — our AI generates a clear state machine diagram with proper guards and actions.