
Description: Papyrus UML is an open-source UML modeling tool based on Eclipse. It allows developers to create UML diagrams like use case, activity, class, sequence, and more. Papyrus aims to provide an advanced environment for editing, visualization and coding of UML models.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: yUML is an online tool and service for quickly creating UML diagrams such as use case diagrams, class diagrams, activity diagrams, state machine diagrams, and sequence diagrams. It has a simple syntax for defining the diagrams that allows fast prototyping.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API