
Description: Telerik RadDiagram is a diagramming component for building interactive diagrams and graph editors in WinForms, WPF, and ASP.NET apps. It has automatic layouts, rich shapes, node stacking, annotations, undo/redo, MVVM support, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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