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XenServerXen Project
Paid

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

 Free

Free and open source, developed under the Linux Foundation.

Self-hosted Self-hosted
  • Mature Xen-based hypervisor
  • Included with several Citrix subscriptions
  • Type-1 hypervisor with strong isolation between guests
  • Used in servers, embedded and safety-critical systems
  • Commercial licensing for full use
  • Oriented toward businesses and Citrix environments
  • Installed on bare metal, so setup is more involved than desktop VM apps
  • Aimed at infrastructure builders rather than casual users
Operating system Downloadable app
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 Works offline

Checked September 24, 2026

Checked September 23, 2026

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