Best Free Server Virtualization Software

Server virtualization on Google Compute Engine allows users to run multiple virtual machines on a single physical server, maximizing resource utilization and minimizing hardware costs. This technology provides flexibility in managing diverse workloads by isolating environments and enabling multi-tenancy, making it easier to deploy, manage, and scale applications. Virtualized servers on Google Compute Engine are fully customizable, allowing users to adjust resources such as CPU, memory, and storage based on specific application requirements. New customers get $300 in free credits to experiment with server virtualization, offering them the ability to scale their infrastructure dynamically while keeping costs in check.

VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL) version 2. See "About VirtualBox" for an introduction. Presently, VirtualBox runs on Windows, Linux, Macintosh, and Solaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7, Windows 8, Windows 10), DOS/Windows 3.x, Linux (2.4, 2.6, 3.x and 4.x), Solaris and OpenSolaris, OS/2, and OpenBSD. VirtualBox is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and platforms it runs on. VirtualBox is a community effort backed by a dedicated company.

Proxmox VE is a complete open-source platform for all-inclusive enterprise virtualization that tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single platform, and easily manages high availability clusters and disaster recovery tools with the built-in web management interface.