
Description: Umbrello is an open source Unified Modeling Language (UML) diagramming tool and code generator. It supports UML diagrams like class diagrams, use case diagrams, sequence diagrams, state machine diagrams and more. Umbrello helps developers design and document software applications and systems.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API