UMLBoard 4+

UMLBoard is an easy-to-use UML class designer with a nice hand-drawn whiteboard look.
Whether you want to visualize an architectural concept, add additional documentation to your code, or need some nice looking diagrams for your presentation or publication:
UMLBoard is the perfect tool for creating and editing UML class diagrams quickly and easily.

Say goodbye to complicated UML editors that require several steps and dialogs to change just a single class member:
UMLBoard provides a clean and minimalistic user interface with in-place editing and full WYSIWYG support.

Some feature highlights:

- Easy-to-use interface for creating and editing UML class diagrams.
- Gives your diagrams a nice hand-drawn and sketchy look.
- In-place-editing of properties and methods.
- Move members between classes via simple Drag&Drop
- Automatic connector routing which can easily be configured with custom anchor points.
- Create groups to organize your classes and customize the visual appearance of your groups
- Use any custom font and size you like for your diagrams.
- Choose between different drawing styles: Sketchy, Enterprise and Too-much-caffeine.
- Dark and light color themes.
- Auto-layout your diagrams.
- Export your diagram as a PNG or SVG image or as PDF or PlantUML text file.
- Use freeform text fields to enter custom class members.
- Notes support markdown syntax.
- Set access specifiers for your class members.
- Auto-update properties or methods if a reference class changes.
- Define custom stereotypes to give your classes specific domain roles
- Validates your diagram and ensures compliance with UML rules.
- Contains example design patterns you can use as a base for your diagrams.
- Full keyboard and shortcut support.
- Full undo/redo support also for delete operations.
- Uses a new and intuitive context-menu approach.

No registration or subscription required, just install it, and you're ready to go!