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XenServerSmartOS
Paid

Commercial licences with a Trial Edition; included in some Citrix subscriptions.

 Free

The SmartOS ISO is free and open source; Triton offers paid private and hosted cloud…

Self-hosted Self-hosted
  • Mature Xen-based hypervisor
  • Included with several Citrix subscriptions
  • Runs zones and KVM or bhyve VMs on the same host
  • ZFS and DTrace built in
  • Commercial licensing for full use
  • Oriented toward businesses and Citrix environments
  • Illumos base is less familiar than Linux
  • Cloud management features require Triton on top
Operating system Operating system
Closed source Open source
License: Proprietary License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked September 23, 2026

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