Portable-VirtualBox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation. Developed by Runar Buvik
License: Open Source
Portable VirtualBox is designed for ease of use and portability, making it suitable for quick testing and development without installation. In contrast, QEMU offers extensive customization and flexibility, making it ideal for advanced users needing powerful emulation and virtualization capabilities.