QEMU, an open-source hypervisor, performs hardware virtualization, emulates CPUs using dynamic binary translation, and supports various architectures. It runs diverse unmodified guest OS, provides device models, and offers mixed translation modes for efficient execution.




This alternative is disputed. QEMU is a legitimate OpenStack alternative, but it might have issues that some users think are important.
QEMU is the most popular Windows, Mac & Linux alternative to OpenStack.
QEMU is the most popular Open Source & free alternative to OpenStack.
- QEMU is Free and Open Source
- QEMU is Lightweight and Security-focused



































CloudStack has less moving parts in general than other Cloud Control Panels.