
Description: ArgoUML is an open-source UML modeling tool written in Java. It supports all standard UML diagrams like use case, class, sequence, state machine, activity, etc. ArgoUML can export diagrams to multiple formats and generate code stubs from UML class diagrams.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PlantUML is an open-source tool for creating UML diagrams from plain text. It supports all standard UML diagrams like use case diagrams, class diagrams, sequence diagrams, etc. PlantUML allows users to write simple textual descriptions which are then transformed into UML diagrams.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API