Documentation

Learn the application, learn UML, and extend UML Wizard with your own languages.

Guides

Using UML Wizard

The same pages ship with the application — press F1 to open the User Manual.

User Manual

Projects and diagrams, drawing and formatting, every diagram type, tagged values, exporting, code generation and import, OpenAPI, PlantUML, the AI assistant, menus, shortcuts and preferences.

Learn UML

The basics of UML, the modelling language for software systems, with each diagram type explained.

How-to

Step-by-step pages

Generating code

Turn a class diagram into C#, Java, Kotlin, TypeScript, Ruby or C++.

OpenAPI

Import an API description as a class diagram and export it back.

PlantUML

Import and export every diagram type as PlantUML text.

For developers

Design documents and plug-ins

On GitHub, next to the source code.

Architecture

How the application, the core model, rendering and the plug-ins fit together.

File format

The structure of a .umlwiz project file.

AI assistant

The principles, providers and privacy design of the optional assistant.

Code import plug-ins

Add a language to Import Source Folder.

Contributing

Bug reports, ideas and pull requests are welcome.

UML support

UML Wizard draws a subset of UML 2.x (UML 2.5.1) notation; it does not claim full conformance to the OMG specification and has no XMI import or export. The User Manual lists, per diagram type, the constructs that are supported and those that are not.

Licence

UML Wizard is licensed under the Apache License 2.0. Third-party components and their licences are listed in THIRD-PARTY-NOTICES.txt. Report security issues privately, as described in SECURITY.md.