UTM

UTM is a system emulator and virtual-machine host for Mac and iOS, best suited to people who need to run different operating systems or processor architectures. Its broad QEMU support and near-native ARM virtualization make it flexible, but graphics limits matter for Windows and Linux guests.

Overview

UTM runs Windows, Linux and other operating systems, using QEMU for emulation and Apple’s virtualization technology where supported. On Apple Silicon, ARM64 guests can run through Apple’s Hypervisor framework at near-native speeds. Intel Macs can virtualize x86/x64 systems; Apple Silicon can emulate those architectures, but at lower performance. That makes UTM a practical choice for compatibility work and experimenting with operating systems, while architecture mismatches can make some guests slower.

QEMU supports more than 30 processor types, including x86_64, ARM64, ARM32, MIPS, PPC and RISC-V. UTM can also use Apple Virtualization for macOS and Linux on Apple Silicon. macOS guests require an ARM-based Mac running macOS Monterey or higher, which rules out older hosts and Intel Macs for that use.

Key features

Flexible VM operation

UTM offers graphical, terminal-console and headless modes, plus multiple-display support. Snapshots and nested virtualization give users options for preserving VM states and running virtualization within a guest. Mac users can attach USB devices, choose bridged or shared networking, and store VMs on external drives, useful when managing devices or keeping large VM files off the internal disk.

iOS sharing and host protection

The iOS product supports shared directories, clipboard sharing and port forwarding, bringing practical ways to move data between host and guest. On macOS, sandboxing helps protect host data from viruses or malware inside an emulated operating system. UTM says it does not collect personal information directly; update checks request release notes from api.github.com.

Graphics trade-offs

Windows guests do not have GPU emulation or virtualization in UTM, so 3D acceleration through OpenGL or DirectX is unavailable. Linux hardware OpenGL acceleration is experimental. UTM therefore suits command-line work, development, and general OS exploration better than graphics-heavy Windows or Linux workloads.

Pricing

The Free open-source version costs nothing, billed as a free download from GitHub. It has no automatic updates, making it the sensible choice for users comfortable managing updates themselves and who do not need the Mac App Store.

The Mac App Store option costs $9.99, paid once as a one-time purchase. It is Mac-only and has identical features to the free version, with automatic updates. It suits Mac users who prefer updates through the App Store; it does not add capabilities over the GitHub version.

Platforms

UTM is available for iOS and macOS, with macOS as its host platform. The Mac app supports USB attachment, bridged and shared networking, and external VM storage. Guest capability varies by host: Apple Silicon is strongest with ARM64 virtualization, while x86/x64 guests on Apple Silicon rely on slower emulation. macOS guests require ARM-based hardware and macOS Monterey or later.

Who it's for

UTM is a good fit for Mac and iOS users who need a desktop-managed emulator with broad architecture coverage, snapshots, and flexible VM modes. It is particularly compelling for ARM64 guests on Apple Silicon. Choose another approach if Windows 3D performance is essential, if experimental Linux OpenGL is not dependable enough for the workload, or if the host cannot meet macOS guest requirements.

Pros and cons

• Pros: QEMU coverage across more than 30 processor types supports varied guest architectures.
• Pros: Apple Silicon ARM64 virtualization can run at near-native speeds.
• Pros: The free version has the same features as the paid Mac App Store option.
• Cons: Windows guests lack GPU acceleration for OpenGL and DirectX, limiting 3D use.
• Cons: Linux hardware OpenGL acceleration remains experimental.
• Cons: macOS guests require an ARM-based Mac with macOS Monterey or higher.
• Cons: The GitHub version does not update automatically.

Alternatives

For a self-hosted or Linux-focused option, Proxmox VE has a free plan and a Premium plan at €1,100 a year, charged for one year from purchase per occupied physical CPU socket. Its listed platforms include Linux, Windows, Android, API, web and self-hosted environments.

crosvm is a free, open-source alternative under the BSD-3-Clause license, with Android, Linux, Windows, API and self-hosted platforms. Multipass is a free option for prototype cloud launches locally on Linux, macOS or Windows, with host requirements varying by operating system. QEMU is a free, open-source option under the GNU General Public License version 2 for Linux, macOS and Windows.

VMware Workstation Pro is free for 64-bit Intel or AMD x86/x86-64 PCs running Windows or Linux hosts, with no subscription or license key required. Harvester is a free, 100% open-source option for API, Linux, self-hosted and web platforms. Cloud Hypervisor is a free open-source VMM for API, Linux and self-hosted platforms. GNOME Boxes is a free desktop application for Linux.

Browse our Hypervisor Software and Virtual machine software lists for more options.

Verdict

UTM is a strong choice for Mac users who want one free, flexible host for ARM64 virtualization and broad processor emulation. Its near-native Apple Silicon performance and extensive architecture support are the main reasons to choose it; look elsewhere when Windows 3D acceleration or dependable Linux hardware OpenGL is central to the job.