VMware vSphere Hypervisor is a free, bare-metal hypervisor from VMware that allows users to virtualize their servers and consolidate applications. Developed by VMware
License: Free
VMware vSphere Hypervisor is a robust, enterprise-grade virtualization solution with strong support and management tools, but comes with high licensing costs. In contrast, OpenStack offers a flexible and scalable open-source cloud computing platform, but may require more technical expertise to configure and maintain.