Azure Virtual Machines
Azure provides scalable, on-demand computing resources called Azure Virtual Machines (VM) for developing and testing code in the cloud.
The virtualization technology for cloud computing developed by VMware, called vSphere, turns data centers into streamlined cloud-computing infrastructures.
Microsoft's hardware virtualization solution is called Hyper-V. Every virtual machine uses virtual hardware for execution.
Citrix Hypervisor offers a dependable and secure open-source platform for cloud, server, and desktop virtualization infrastructures.
Oracle VM VirtualBox
VirtualBox is open-source, cross-platform virtualization software. It runs on Mac, Windows, Linux, and Oracle Solaris systems and supports several guest operating systems.