Qubes OS - The Reasonably Secure Operating System

Welcome to the Qubes OS Website! Check out our new release!

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Version 4.2.4

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What others are saying

"If you're serious about security, @QubesOS is the best OS available today. It's what I use, and free."
Edward Snowden, whistleblower and privacy advocate

"SecureDrop depends on Qubes OS for best-in-class isolation of sensitive workloads on journalist workstations. Providing journalists with a sane way to handle untrusted content from unknown sources is part of our job, and Qubes gives us the tools we need to do that job well."
Freedom of the Press Foundation, non-profit dedicated to supporting free speech and public-interest journalism

"When I use Qubes I feel like a god. Software thinks that it's in control, that it can do what it wants? It can't. I'm in control."
Micah Lee, Director of Information Security at The Intercept, advisor to DDoSecrets

"Qubes OS gives us greater confidence in the security of systems being used to remotely access our servers, mainly because powerful physical and logical privilege separation between workspaces allows our engineers to select appropriate degrees of isolation for different processes."
Let's Encrypt, non-profit, world's largest certificate authority

More endorsements

Media & Press

"The world's most secure operating system assumes you've been owned."
by J.M. Porup

"For those willing to put in the effort, Qubes is more secure than almost any other operating system available today."
by J. M. P.

"So Rutkowska flipped the game, this time in favor of the defenders."
by Andy Greenberg

More Media & Press

News & Announcements

Fedora 40 approaching end of life Posted in Announcements on 2025-03-16
Qubes Canary 042 Posted in Security on 2025-03-08
XSAs released on 2025-02-27 Posted in Security on 2025-02-27
The NovaCustom V54 Series 14.0 inch coreboot laptop is Qubes certified! Posted in Announcements on 2025-02-19
Qubes OS 4.2.4 has been released! Posted in Releases on 2025-02-18
Qubes OS 4.2.4-rc1 is available for testing Posted in Releases on 2025-02-03
XSAs released on 2024-12-17 Posted in Security on 2024-12-18

More News & Announcements

What's Inside of Qubes?

Secure Compartmentalization

Qubes brings to your personal computer the security of the Xen hypervisor, the same software relied on by many major hosting providers to isolate websites and services from each other.

Learn more

Operating System Freedom

Can't decide which Linux distribution you prefer? Still need that one Windows program for work? With Qubes, you're not limited to just one OS.

Learn more

Serious Privacy

With Whonix integrated into Qubes, using the Internet anonymously over the Tor network is safe and easy.

Learn more

Research

  • Qubes virtual mini-summit 2021 - 3mdeb and the Qubes team, August 2021
  • Qubes Air: Generalizing the Qubes Architecture - Joanna Rutkowska, January 2018
  • Introducing the Next Generation Qubes Core Stack - Joanna Rutkowska, October 2017
  • Introducing the Qubes Admin API - Joanna Rutkowska, June 2017
  • Thoughts on the "physically secure" ORWL computer - Joanna Rutkowska, September 2016
  • Security challenges for the Qubes build process - Joanna Rutkowska, May 2016

Read More Research

Partners

Mullvad

Freedom of the Press Foundation

Invisible Things Lab

We would love for you to fund or partner with us

Join the Community!

Have questions or need a hand? As a free and open-source project, our valued community of users and contributors from around the world are in the best position to help. Before diving in, we encourage you to read about staying safe, our discussion guidelines, and our code of conduct to help keep things positive and on-track. We welcome newcomers and returning users wanting to discuss Qubes and seeking to contribute.

Visit the Qubes Forum


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