
Description: Linkage Mechanism Designer and Simulator is software for modeling, visualizing, and simulating mechanical linkages. It allows users to easily design linkages by adding links, joints, motors, etc. and see how they move in real time. Useful for engineers, designers, and students.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SolveSpace is a free, open source 2D and 3D CAD software for designing and analyzing mechanical designs and assemblies. It has an intuitive user interface with key features like constraint-based sketching, extruding, dimensioning, sectioning, and visualization.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API