Virtualization software lets one computer run many virtual machines (VMs). It comes in two groups. Desktop apps, such as VirtualBox, VMware Workstation and Parallels, run VMs on the computer you already use. Server platforms, such as Proxmox VE, VMware ESXi, Hyper-V and XCP-ng, turn a dedicated machine into a host for many VMs. Many good options are free as of October 2026.
Updated October 2026. This guide replaces the 2012 version with current tools and a home lab focus.
Who this is for: you want to run VMs at home or for a small team, and you need a short list of software to try.
Desktop vs server virtualization software
The first choice is not a brand. It is where the software runs.
- Desktop apps (type 2 hypervisors) install on Windows, macOS or Linux like any other program. You use them for test VMs, a second OS or learning. Your VMs stop when you shut the laptop.
- Server platforms (type 1 hypervisors) install directly on the hardware. The machine runs all day, and you manage it from a web browser or a console on another computer.
If the terms type 1 and type 2 are new, read what a hypervisor is and how the two types differ. Hyper-V is a special case. It is a type 1 hypervisor, but you can turn it on inside Windows 11 Pro.
Virtualization software comparison table
This table reflects vendor pages as of October 2026. License terms change often. Verify every row on the vendor's site before you decide.
| Software | Type | Runs on | License as of October 2026 (verify) | Best for |
|---|---|---|---|---|
| VMware Workstation Pro | Desktop | Windows, Linux | Free for all use, no paid support | Polished desktop VMs, VMware skills |
| VMware Fusion Pro | Desktop | macOS | Free for all use, no paid support | Mac users who want VMware |
| Oracle VirtualBox | Desktop | Windows, macOS, Linux | Open source (GPLv3); Extension Pack under separate license | Free cross-platform lab |
| Parallels Desktop | Desktop | macOS | Paid (one-time or subscription by edition) | Windows on a Mac, ease of use |
| UTM | Desktop | macOS | Free and open source | Free VMs and emulation on a Mac |
| GNOME Boxes | Desktop | Linux | Free and open source | Simple VMs on a Linux desktop |
| Hyper-V (client) | Type 1, in Windows | Windows 10/11 Pro or Enterprise | Included with Windows | Windows users, WSL2 and Windows Sandbox users |
| Proxmox VE | Server | Bare metal (x86) | Open source (AGPLv3), optional subscription | Home labs and small teams |
| VMware ESXi / vSphere | Server | Bare metal (x86) | Commercial subscription; limited free ESXi 8 edition | Teams tied to the VMware ecosystem |
| Hyper-V (Windows Server) | Server | Bare metal (x86) | Part of paid Windows Server | Microsoft-based businesses |
| XCP-ng | Server | Bare metal (x86) | Open source, optional paid support | A Xen-based, VMware-like model |
| KVM with libvirt | Server | Any Linux host | Open source, part of Linux | Linux admins who want full control |
| Nutanix Community Edition | Server | Bare metal (x86) | Free, community-supported | Learning Nutanix |
Free virtualization software for your desktop
If you want to run VMs on the computer you own, start here. The VMware vs VirtualBox vs Proxmox comparison covers the top two in depth, with nested Proxmox steps. This section gives the short version and adds the others.
VMware Workstation Pro and Fusion Pro
Workstation Pro runs on Windows and Linux. Fusion Pro runs on macOS. On 11 November 2024, Broadcom made both free for commercial, educational and personal use. The paid versions are no longer sold. Free users get community forums and docs, not support tickets. Read the VMware announcement, then check the current download steps on Broadcom's site.
Oracle VirtualBox
VirtualBox runs on Windows, macOS and Linux. The base package is open source under the GNU GPL version 3. The Extension Pack is different. It is free for personal and educational use under the PUEL. Commercial use needs a paid enterprise license. See the VirtualBox licensing FAQ before you install the Extension Pack at work.
Hyper-V on Windows 11
Hyper-V is built into Windows 10 and Windows 11 Pro and Enterprise. There is nothing to download. You turn it on as a Windows feature. It cannot be installed on the Home editions. Your CPU needs Second Level Address Translation (SLAT). Microsoft lists 4 GB of memory as the minimum.
One warning. When the Hyper-V hypervisor runs, VMware Workstation and VirtualBox must run on top of it. They often run slower, and some features may not work. Microsoft's Hyper-V install guide warns that their VMs may not start or may run unreliably. Test your setup before you rely on it.
UTM and Parallels Desktop on a Mac
UTM is a free, open-source app for macOS built on QEMU. It can run VMs and can also emulate other CPU types, such as x86 Windows on an Apple Silicon Mac (slowly). Parallels Desktop is a paid app. As of October 2026, it comes in Standard, Pro and Business editions, with Standard sold as a one-time purchase and the others by subscription. Check the Parallels site for current prices.
GNOME Boxes on Linux
GNOME Boxes is a simple VM app for the GNOME desktop. It uses QEMU, KVM and libvirt underneath. You point it at an ISO, and it builds the VM with few questions. It suits quick tests. For more control on Linux, use virt-manager or a server platform.
Server virtualization software
A server platform needs its own machine. In return, your VMs run all day, and you get features such as snapshots, backups, clustering and live migration.
Proxmox VE
Proxmox VE is a Debian-based platform that runs KVM virtual machines and LXC containers from one web interface. As of October 2026, it is free and open source under the GNU AGPLv3. The full feature set works without a subscription. Paid subscriptions add the enterprise repository and, on most plans, technical support. See the Proxmox VE subscription page for the current plans.
For a home lab, this is the platform I would start with. Read what Proxmox VE is and why home labs run it for the full picture.
VMware ESXi and vSphere
ESXi is VMware's bare-metal hypervisor. vCenter manages many ESXi hosts together. As of October 2026, Broadcom sells vSphere as per-core subscription bundles. Get a current quote from Broadcom or a partner.
Free ESXi was withdrawn in February 2024. On 10 April 2025, Broadcom released ESXi 8.0 Update 3e as a free download from its support portal. Reported limits are 2 physical CPUs, 8 vCPUs per VM, no vCenter and no support. As of October 2026, no free ESXi 9 was found. For a full two-way comparison, read Proxmox vs VMware in 2026.
Microsoft Hyper-V on Windows Server
On a server, Hyper-V is a role you add to Windows Server. Microsoft Hyper-V Server 2019 was the last free, standalone Hyper-V product. On Windows Server 2025, Hyper-V comes with a paid Windows Server license. As of October 2026, Microsoft's Windows Server licensing says a fully licensed Standard host covers 2 Windows Server VMs. Datacenter covers unlimited Windows Server VMs. Licenses are per core. Check the current guidance with Microsoft or your reseller.
XCP-ng
XCP-ng is an open-source type 1 hypervisor based on Xen. Vates develops it, and the project is hosted by the Linux Foundation. You manage it with Xen Orchestra, a web tool for management and backups. Its model feels close to vSphere, with one management layer over many hosts. Vates sells support if you need it.
KVM with libvirt
KVM is the hypervisor built into the Linux kernel. Proxmox uses it, and so do many cloud providers. You can also use it directly on any Linux server, with libvirt to manage VMs and virt-manager or Cockpit as a front end. It is free and flexible. You build the parts that Proxmox gives you out of the box, such as backups and clustering.
XenServer (formerly Citrix Hypervisor)
XenServer (once called Citrix Hypervisor) is a commercial Xen-based platform. As of October 2026, it is licensed through Citrix subscriptions, and its branding has changed more than once. The guide to Hyper-V vs VMware vs Proxmox covers its history. Check the XenServer site for current editions and trial terms.
Nutanix Community Edition
Nutanix Community Edition (CE) is a free, community-supported version of the Nutanix platform with the AHV hypervisor. It is a good way to learn Nutanix if your employer uses it. As of October 2026, it needs a free Nutanix account to download, and much more memory and disk than Proxmox. Read the Nutanix CE getting-started guide for current requirements before you try it.
How to choose virtualization software
Answer these questions in order.
- Do you need VMs only while you work at your computer? Use a desktop app. VirtualBox is free everywhere. VMware Workstation or Fusion is free and polished. On a Mac, also look at UTM and Parallels.
- Do you run Windows Pro and use WSL2 or Windows Sandbox? Hyper-V is already there. Use it to avoid clashes.
- Do you want services that run all day? Use a server platform on a spare PC or mini PC. Proxmox VE is the easiest start for most home labs.
- Is your workplace on VMware, Hyper-V or Nutanix? Learn that platform, nested or on spare hardware, for job skills.
- Are you a small business choosing a platform? Read the side-by-side of Hyper-V vs VMware vs Proxmox before you buy.
What to watch for
- Old license advice. VMware, VirtualBox and Citrix terms changed in 2024 to 2026. Read the vendor page, not a forum post (or this one) as the final word.
- Two hypervisors on one PC. Hyper-V, WSL2 and some Windows security features take over the CPU's virtualization features. Other desktop apps then run slower or fail.
- Hardware support. ESXi has a strict hardware list. Proxmox and KVM follow Linux drivers. Check network cards and storage controllers before you buy.
- The Extension Pack at work. The VirtualBox base package is free for any use. The Extension Pack is not free for commercial use.
- Apple Silicon. An M-series Mac runs ARM guests at near-native speed. x86 guests need emulation, which is slow.
FAQ
What is the best free virtualization software?
For a desktop, VirtualBox and VMware Workstation Pro are both free as of October 2026. For a dedicated server, Proxmox VE is free with every feature. The best one depends on whether you need VMs on your own computer or on a separate host.
Which virtualization software is free for commercial use?
As of October 2026, VMware Workstation Pro and Fusion Pro, the VirtualBox base package, Proxmox VE, XCP-ng and KVM are free for commercial use. The VirtualBox Extension Pack and Parallels Desktop are not. Verify each license on the vendor's site before you use it at work.
Which virtualization software runs on Linux?
On a Linux desktop, use VirtualBox, VMware Workstation Pro, GNOME Boxes or virt-manager. On a Linux server, KVM with libvirt is built in, and Proxmox VE is a full platform built on Debian. All of these are free as of October 2026.
Which virtualization software is best for a Mac?
On Apple Silicon, VMware Fusion Pro and UTM are free, and Parallels Desktop is a paid option. All three run ARM guests well. Proxmox VE does not run on a Mac, so learn it on a spare x86 PC.
Can I run virtualization software on a laptop?
Yes. Any desktop app in this guide runs on a modern laptop with hardware virtualization turned on. Memory is the usual limit, so check what each VM needs. For VMs that run all day, use a server platform on a separate machine.
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