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Qubes OSOpenBSD
Free

The open-source system is available without a license fee.

 Free

Free to download and use; development is funded through donations to the OpenBSD…

Linux Command line
  • Compromise of one qube does not reach the others, by design
  • Networking and USB are themselves isolated in dedicated qubes
  • Strong security record in the default install
  • Integrated cryptography and the home of OpenSSH
  • Demanding hardware requirements and a strict compatibility list
  • Day-to-day use requires changing how you think about files and applications
  • Less focus on desktop convenience than mainstream Linux distributions
  • Narrower hardware and software support than Linux
Operating system Operating system
Open source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 23, 2026

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