UTM employs Apple's Hypervisor virtualization framework to run ARM64 operating systems on Apple Silicon at near native speeds. On Intel Macs, x86/x64 operating system can be virtualized. In addition, lower performance emulation is available to run x86/x64 on Apple Silicon as well as ARM64 on Intel. For developers and enthusiasts, there are dozens of other emulated processors as well including: ARM32, MIPS, PPC, and RISC-V. Your Mac can now truly run anything. You can also emulate older operating systems whether it's on PowerPC, SPARC, or x86_64. Run multiple instances of macOS on your Apple Silicon Mac with UTM. Unlike other free virtualization software, UTM was created for macOS and only for Apple platforms. It is designed completely from the ground up for the new style introduced in Big Sur. UTM looks and feels like a Mac app with all the privacy and security features you expect as well.

Of course, it's just built on top of QEMU.

In the Mac Appstore.

Github: https://github.com/utmapp/UTM