VirtualBox

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

Wine

Wine is a free, open source application for running Windows software on operating systems that are normally not supported. With Wine, you can install and run these applications just like you would in Windows.

Free Open Source Mac OS X Linux Android Android Tablet BSD

VMware Workstation Pro

VMware Workstation Pro is a commercial hypervisor that allows users to create and run virtual machines on one computer.

Commercial

VMware Workstation Player

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

Parallels Desktop

Parallels Desktop gives Mac users the ability to run Windows, Linux or any other operating system and their critical applications at the same time as Mac OS X on any Intel-powered Mac Pro, iMac, Mac Mini, MacBook or MacBook Pro.

Commercial

KVM (Kernel-based Virtual Machine)

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.

Free Open Source Linux

Portable Virtualbox

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

MobaLiveCD

MobaLiveCD is a freeware that will run your Linux LiveCD on Windows thanks to the excellent emulator called "Qemu".

Free Open Source Windows

Boot Camp

Boot Camp is a utility by that assists users in installing Windows XP, Windows Vista, Windows 7, or GNU/Linux operating systems on Macs.

Free Mac OS X

Wineskin Winery

Wineskin is a tool used to make ports of Windows software to Mac OS X. The ports are in the form of normal Mac application bundle wrappers. It works like a wrapper...

Free Open Source Mac OS X Wine

ASG-Remote Desktop

ASG-Remote Desktop is the indispensable tool for administrative access to remote computers.

Commercial Windows

OpenVZ

OpenVZ is container-based virtualization for Linux.

Free Open Source Linux

Paragon Virtualization Manager

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

JPC

PC is the fast Java™ x86 PC emulator. Features: - 100% pure Java - Runs as an applet - Modular and customisable - Snapshot capability - Integrated debugger - Bulletproof security

Free Open Source Mac OS X Windows Linux Web

maComfort

Brings Mac to Windows. Makes Windows feel and look like Mac. Enables features like Quicklook (file preview without opening), Spaces (virtual desktops), Active Corners, Mac hotkeys & key combinations and more!

Freemium Windows

VMLite XP Mode

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

bhyve

bhyve (pronounced "bee hive", formerly written as BHyVe) is a type-2 hypervisor that runs on FreeBSD.

Free Open Source BSD FreeBSD

WinOnX

Run your Windows applications on OSX without the need of buying a Windows license. Well, you even do not need to install Windows. Just download WinOnX and you are...

Commercial Mac OS X

Karton

Run Linux programs on macOS, a different Linux distro, or a different architecture.

Free Open Source Linux Mac