Quickly design UML class diagrams based on Mermaid syntax, intuitively presenting classes, attributes, methods and association relationships to support software architecture design and code modeling.
A class diagram is a UML diagram used to describe the structure of object-oriented systems. It shows the static structure of a software system through classes, attributes, methods and the relationships between classes. Class diagrams help developers understand code organization, module dependencies and object model design. They are widely used in software architecture design, system analysis and program development.
Show system structure through classes, attributes, methods and relationships. An important tool for object-oriented design.
Sort out relationships between business entities, helping product and development teams understand the core business model.
Plan module structure and class dependencies before development to improve code maintainability.
Support analysis of association relationships between entities, providing a reference for database design.
Used to record system design proposals, helping teams quickly understand the software structure.
You can generate class diagrams by writing Mermaid code, pasting Mermaid code, AI generation, image recognition, code summary and more. You can also draw class diagrams using our built-in class diagram templates.
After entering Mermaid syntax, class diagrams are generated and previewed in real time, with support for custom class diagram styles and themes.
You can download class diagrams and save them locally. We support exporting class diagrams to PNG, PDF, SVG, JPG, Markdown and other formats, or clicking the “Share” button to share the link with others.
If you are not satisfied with the result, click the “Visual editing” button to edit the class diagram again in the ProcessOn editor.
A Mermaid class diagram is a UML modeling diagram used to show classes, attributes, methods and the inheritance, association and dependency relationships between classes.
Yes. Mermaid class diagrams help developers with object-oriented design, code structure analysis and system architecture planning.
Mermaid class diagrams support inheritance, composition, aggregation, association and dependency relationships to describe complex software system structures.
Define class names, member attributes and relationships using Mermaid class diagram syntax to generate UML class diagrams. AI can also quickly create class diagrams from code structure.
Mermaid class diagrams describe models in text form, making them more suitable for rapid design, code review and version management in development workflows.