QEMU (short for Quick Emulator) is a free and open-source hosted hypervisor that performs hardware virtualization QEMU is a hosted virtual machine monitor. Developed by Fabrice Bellard
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.