App: Blueprint UML Editor
Developer: junichi nakamura
Genres: Graphics & Design, Developer Tools

Blueprint UML Editor is a modeling tool that makes it easy and quick to create UML2 diagrams.
You can create the following diagrams:

Structure Diagram
Class Diagram, Component Diagram, Deployment Diagram

Behavior Diagram
Activity Diagram, Sequence Diagram, Communication Diagram, Statemachine Diagram, Usecase Diagram

Please check the support page for the elements that can be created in each diagram.

You can also color, align, and rearrange the elements.

The appearance supports two types of themes, light and dark.

Release notes:
New features:
Add ON/OFF of "Add default element by double-clicking diagram" function to setting.
Delete message by pressing deleteKey when message label is selected.
Start with all text selected when editing.
Add rename to right pane context menu.

Bug fix:
Crash when deleting from main menu or context menu while editing message or comment text.
IF class not showing in right pane when adding IF with dependency or usage.