
Description: Oracle VM VirtualBox is a free and open-source virtualization platform that enables users to run multiple operating systems on a single physical machine. Widely used for development, testing, and virtualized environments, VirtualBox supports a variety of guest operating systems and provides features like snapshotting, shared folders, and networking options.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PCem is an open-source IA-32 PC emulator that allows you to emulate old x86 based PCs. It aims to be highly compatible and allows you to run many older MS-DOS games and applications. PCem is free, customizable, and works on Windows, Linux and macOS.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API