oVirt vs QEMU
oVirt
ovirt.org
QEMU
qemu.orgSide by side
| Figure | oVirt | QEMU |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | Yes |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 2 |
| Spec score · Server Virtualization Software | 8.6 (#1) | 8.5 (#3) |
| Spec score · Hypervisor Software | 8.6 (#5) | 8.5 (#7) |
| Spec score · Virtual machine software | 8.5 (#6) | 9.0 (#2) |
| Free plan | Yes | Yes |
| Latest release | Version 4.5.7 was released January 13, 2026, adding CentOS and AlmaLinux 10 support, a CVE-2024-7259 fix, Java 21 builds and faster host reconnection. | The download page lists QEMU 11.1.2 released on September 28, 2026. |
| License | oVirt uses Apache License 2.0 as its primary license, while some complementary projects may use LGPL or GPL. | QEMU and its manual are released under GNU General Public License version 2, although some components have specific licenses. |
| Purpose | oVirt is a free open-source distributed virtualization solution designed to manage enterprise infrastructure. | QEMU is a generic and open source machine emulator and virtualizer. |
| Rating on G2 | 4.2 out of 5 from 3 reviews | 4.3 out of 5 from 29 reviews |
| What it does | oVirt is a free, open-source distributed virtualization platform for managing enterprise infrastructure through a centralized interface. | QEMU is an open-source machine emulator and virtualizer. |
Plans
In their own words
oVirt
oVirt is a free, open-source distributed virtualization system for managing enterprise infrastructure. It uses the KVM hypervisor and builds on community projects including libvirt, Gluster, PatternFly, and Ansible. Deployment options include a self-hosted Engine and a standalone Engine; the project recommends the self-hosted option, which runs as a virtual machine on specialized hosts and is highly available without external HA management. Centralized storage holds virtual machine disks, ISO files, and snapshots, with options including NFS, GlusterFS, iSCSI, local storage, Fibre Channel, pNFS, and other POSIX-compliant filesystems. Automation and integration are available through Ansible roles and collections, Python, Java, and Ruby SDKs, and a REST API. The download page identifies version 4.5.7 as intended for production use, with Engine and host support for Enterprise Linux 9 or 10 and CentOS Stream 9 or 10. Installation is by command line. At least one additional host is required for advanced features such as migration and high availability. The project points users to community forums, IRC, and Matrix, and invites contributions.
QEMU
QEMU is a free, open-source machine emulator and virtualizer. System emulation models an entire machine, including its CPU, memory and devices, so it can run a guest operating system. User-mode emulation runs processes built for one CPU architecture on another. The package also includes qemu-img, a command-line utility for creating, converting and modifying disk images. QEMU can work with KVM, Xen and Hypervisor.Framework so guests can run directly on the host CPU. Supported build platforms include Linux, macOS, FreeBSD, NetBSD, OpenBSD and Windows. Windows support is limited to 64-bit, while macOS requires the newest version currently available; support for the prior version is eventually dropped. For complex networking and storage configurations, the project recommends management tools such as virt-manager. Its security guidance distinguishes virtualization with an accelerator and listed machine type from TCG non-virtualization use, which does not provide guest-isolation or security guarantees. QEMU is released under GNU GPL version 2, with some components under specific licenses.