SmartOS is a hypervisor lean enough to run entirely in memory, powerful enough to run as much as you want to throw at it. Provisioning is blindingly fast, thanks to zones and ZFS file system creation.

OpenVZ is described as 'Is container-based virtualization for Linux' and is a Virtualization tool in the network & admin category. There are more than 25 alternatives to OpenVZ for a variety of platforms, including Linux, Windows, Self-Hosted, Mac and Web-based apps. The best OpenVZ alternative is VirtualBox, which is both free and Open Source. Other great apps like OpenVZ are Docker, QEMU, VMware Workstation Pro and KVM (Kernel-based Virtual Machine).
SmartOS is a hypervisor lean enough to run entirely in memory, powerful enough to run as much as you want to throw at it. Provisioning is blindingly fast, thanks to zones and ZFS file system creation.

Xen.org, home of the Xen hypervisor, the powerful open source industry standard for virtualization. It is a native (bare-metal) hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently.

VMware vSphere Hypervisor ( based on ESXi ) is a free bare-metal hypervisor that virtualizes servers so you can consolidate your applications on less hardware.


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.


Flint is a modern, self-contained KVM management tool built for developers, sysadmins, and home labs who want zero bloat and maximum efficiency. It was built in a few hours out of a sudden urge for something better.


Straightforward and lightweight, but featureful. MicroClouds serve compute near consumers, wherever they may be.

Lima launches Linux virtual machines on macOS, with automatic file sharing, port forwarding, and containerd.
An industry-standard container runtime with an emphasis on simplicity, robustness and portability
Multipass is a lightweight VM manager for Linux, Windows and macOS. It's designed for developers who want a fresh Ubuntu environment with a single command. It uses KVM on Linux, Hyper-V on Windows and HyperKit on macOS to run the VM with minimal overhead.



Qemu Manager is an easy to use management tool for the open-source QEMU emulator. It has a wealth of features for creating, managing and running multiple virtual machines.


Centrally manage your virtual infrastructure with VMware vCenter Server, server management software for your virtual infrastructure.