
Description: VMware vSphere Hypervisor is a free bare-metal hypervisor that virtualizes servers to enable the running of multiple operating systems on a single physical server. It provides a simple, reliable and secure foundation for business-critical applications.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Portable Virtualbox is a free, open-source virtualization software that allows you to run multiple virtual machines on your Windows computer without needing to install Virtualbox. It runs directly from a USB drive for easy portability.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API