The best free alternative to Citrix Hypervisor is VirtualBox, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Citrix Hypervisor and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Citrix Hypervisor are Proxmox Virtual Environment, KVM (Kernel-based Virtual Machine), UTM and Windows Sandbox.
Open source VirtualBox offers powerful x86/AMD64 virtualization available freely under GNU GPL v2. Runs on Windows, Linux, Mac, Solaris hosts. Supports a vast array of guest OS like Windows, Linux, Solaris. Portable, lightweight, ad-free, with dark mode.
Proxmox Virtual Environment is a complete and easy to use Open Source virtualization platform for running Virtual Appliances and Virtual Machines. Proxmox VE tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single...
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.
UTM is a full featured system emulator and virtual machine host for iOS and macOS. It is based off of QEMU. In short, it allows you to run Windows, Linux, and more on your Mac, iPhone, and iPad.
a new lightweight desktop environment tailored for safely running applications in isolation.
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.
Virtualbox can't be run on hardware without system under it.
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.
XCP-ng is a high-performance, enterprise-level hypervisor with a rich ecosystem and is the result of massive cooperation between individuals and companies. All commercial features are enabled with no commitment required to a support agreement.
is xenserver without "liecense manager" , no more , no less
Microsoft Hyper-V Server is a free product that delivers enterprise-class virtualization for your datacenter and hybrid cloud.
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.
Lima launches Linux virtual machines on macOS, with automatic file sharing, port forwarding, and containerd.
Harvester is the next generation of open-source hyperconverged infrastructure solutions designed for modern cloud-native environments.
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XenServer is based off of Xen.