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QEMUBochs
Free

Free and open source, with no paid edition.

 Free

Free and open source.

Windows, macOS, Linux, Command line Windows, macOS, Linux
  • Emulates whole machines across processor architectures, not just same-architecture VMs
  • Near native performance when paired with KVM or Xen
  • Full x86 emulation, from 386 to recent x86-64 CPUs
  • Useful for OS development and low-level debugging
  • Raw QEMU is a command line tool with a large and unfriendly option surface
  • Cross-architecture emulation is far slower than virtualisation on matching hardware
  • Much slower than virtualization-based VM software
  • Configuration is text-based and technical
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License not stated
No account needed No account needed
Works offline Works offline

Checked September 20, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.