VirtualBox software is a free and open-source virtualization tool that allows s to run multiple operating systems on a single machine. It provides for a wide range of guest operating systems, including Windows, Linux, and macOS. The software also offers features like snapshotting, shared folders, and seamless mode, which enables s to run applications from guest systems on the host desktop. Additionally, VirtualBox allows s to create and manage virtual machines through a -friendly interface.