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QEMU

A generic and open source machine emulator and virtualizer

Screenshot: QEMU running the ReactOS operating system on Linux.

Full-system
emulation

Run operating systems for any machine, on any supported architecture

Screenshot: QEMU running a 32-bit ARM binary on a 64-bit Linux system.

User-mode
emulation

Run programs for another Linux/BSD target, on any supported architecture

Screenshot: The dashboard of the OSv operating system, running in the background as a QEMU/KVM process.

Virtualization

Run KVM and Xen virtual machines with near native performance

Screenshot: QEMU emulating an ASCII art game for the System z (s390) mainframe.

Screenshot: QEMU running Second Reality, a well-known PC demo from 1993, inside the FreeDOS operating system.

11.1.3 Oct 28th 2026
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11.0.5 Sep 28th 2026
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10.2.4 Jun 26th 2026
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10.1.5 Mar 17th 2026
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10.0.15 Oct 28th 2026
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Full list of releases