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.

Bushel is described as 'Need to try out old versions of macOS for your software? Want to try a script or piece of software without breaking your Mac?' and is an app in the network & admin category. There are more than 25 alternatives to Bushel for a variety of platforms, including Linux, Windows, Mac, Self-Hosted and BSD apps. The best Bushel alternative is VirtualBox, which is both free and Open Source. Other great apps like Bushel are QEMU, VMware Workstation Pro, KVM (Kernel-based Virtual Machine) and VMware Workstation Player.
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.


Allows native execution of iOS apps and games on Apple Silicon Macs running macOS 12 or newer, featuring advanced mouse, keyboard, and controller support, custom keymapping options resembling Bluestacks, open source code, and support for a wide range of mobile applications.


Lima launches Linux virtual machines on macOS, with automatic file sharing, port forwarding, and containerd.
OpenVZ is container-based virtualization for Linux.
OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict.
Each container performs.

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.



Bochs is a highly portable open source IA-32 (x86) PC emulator written in C++, that runs on most popular platforms. It includes emulation of the Intel x86 CPU, common I/O devices, and a custom BIOS. Currently, Bochs can be compiled to emulate a 386, 486...



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.

