
Description: FreeCAD is an open-source parametric 3D modeler made primarily for mechanical engineering product design. It allows you to sketch geometry constrained 2D shapes and use them to build solid 3D objects. Key features include part modeling, assembly modeling, drafting, finite element analysis, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ABViewer is a free, open-source Adobe PDF viewer for Windows. It provides basic PDF viewing and annotation capabilities in a lightweight application.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API