Kernel-based Virtual Machine (KVM) is a virtualization infrastructure for the Linux kernel that turns it into a hypervisor. It was merged into the Linux kernel mainline in kernel version 2.6.20.
License: Open Source
ClearVM is a user-friendly commercial virtualization solution primarily designed for desktop environments, while KVM is an open-source hypervisor that excels in server virtualization and scalability. KVM's strong community support and advanced features make it suitable for enterprise and cloud environments, whereas ClearVM is more accessible for non-technical users but lacks some advanced capabilities.