VirtualBox
VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use.
KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.
kvm (for kernelbased virtual machine) is a full virtualization solution for linux on x86 hardware containing virtualization extensions (intel vt or amdv). it consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvmintel.ko or kvmamd.ko. kvm also requires a modified qemu although work is underway to get the required changes upstream.
using kvm, one can run multiple virtual machines running unmodified linux or windows images. each virtual machine has private virtualized hardware: a network card, disk, graphics adapter, etc.
the kernel component of kvm is included in mainline linux, as of 2.6.20.
kvm is open source software.
Productivity Utilities Networking and Admin
extensible linux-based management-tools virtualization emulation gnu-linux os-utilities virtualization-manager virtualize
VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use.
Free Open Source Windows Linux BSD Mac Solaris
VMware Workstation Pro is a commercial hypervisor that allows users to create and run virtual machines on one computer.
Commercial
VMware Workstation Player builds on the industry leading foundation of Workstation Pro, and delivers a streamlined user interface for creating and running operating systems and applications in a virtual machine.
Free Personal Windows Linux
Seamlessly run your favorite Windows applications and devices, on any Intel-based Mac.
Commercial Mac OS X
VMware vSphere Hypervisor ( based on ESXi ) is a free bare-metal hypervisor that virtualizes servers so you can consolidate your applications on less hardware.
Commercial Windows Linux
portable-virtualbox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation. it unpacks and adjusts the paths and configuration of virtualbox so it will run portably.
Free Open Source Windows
XenServer is a turnkey open source virtualization solution that provides out-of-the box virtualization and cloud computing.
Free Open Source Windows Linux
ASG-Remote Desktop is the indispensable tool for administrative access to remote computers.
Commercial Windows
UCS Virtual Machine Manager (UVMM) is an easy-to-use and powerful administration tool for KVM.
Free Open Source Linux Univention Corporate Server
A powerful tool to help you easily migrate a Windows-based computer to a virtual environment (P2V) of a major virtualization software vendor, regardless of how or where the computer is being backed up.
Commercial Windows
VBoot allows you to boot a physical computer from a single virtual disk file in VHD/VMDK/VDI/Raw format. Each file contains a single operating system.
Commercial Windows Linux
VMLite XP Mode offers similar functions as Microsoft Windows XP Mode, but doesn't require hardware virtualization. It allows you to run Windows XP at the same time from your desktop running on a different host operating system.
Commercial Windows
Danube Cloud is a software solution used for creating, managing and automating cloud data centers.
Free Open Source Web Self-Hosted