https://www.qubes-os.org/

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Qubes OS A reasonably secure operating system

Download & Install
Version 4.1.2

What others are saying

[endorsemen]
 

    "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

[fpf-logo-s]

    "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

[endorsemen]

    "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

[lets-encry]

    "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
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Media & Press

[motherboar]

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

[the-econom]

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

[wired-maga]

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

More Media & Press

News & Announcements

  * Qubes OS 4.2.0-rc1 is available for testing Posted in Releases on
    2023-06-02
  * Fedora 38 templates available Posted in Announcements on
    2023-05-26
  * Qubes Canary 035 Posted in Security on 2023-05-22
  * XSAs released on 2023-05-16 Posted in Security on 2023-05-16
  * QSB-089: Qrexec: Memory corruption in service request handling 
    Posted in Security on 2023-05-11
  * Fedora 36 reaches EOL on 2023-05-16 Posted in Announcements on
    2023-05-11
  * The NovaCustom NV41 Series laptop is Qubes-certified! Posted in
    Announcements on 2023-05-03
  * More News & Announcements

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What's Inside of Qubes?

[xen-logo]

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

[OS-logos]

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

[whonix-tor]

Serious Privacy

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

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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

Awards & Grants

  * [nlnet] 2016
  * [OTF-logo] 2015 and 2016
  * [access-inn] 2014 Finalist for Endpoint Security
  * [partners-s] We would love for you to fund or partner with us

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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

Search qubes-os.org

[                    ] Go!
Introduction

  * What is Qubes OS?
  * Endorsements
  * Getting started
  * Video tours
  * Screenshots
  * FAQ
  * Help and support
  * Security center
  * Architecture
  * Code of conduct

Downloads

  * System requirements
  * Certified hardware
  * Compatibility list
  * Installation guide
  * Verifying signatures
  * Supported versions
  * Version scheme
  * Source code
  * Software license
  * Download mirrors

Documentation

  * Introduction
  * Choosing hardware
  * Installing and upgrading
  * How-to guides
  * Templates
  * Troubleshooting
  * Security in Qubes
  * Project security
  * Developer docs
  * External docs

News

  * Announcements
  * Userbase statistics
  * Research
  * GitHub
  * Qubes forum
  * Twitter
  * Mastodon
  * Reddit
  * Facebook
  * LinkedIn

Team

  * Report a bug
  * Report a security Issue
  * Inquiries
  * Core team
  * Emeritus
  * Community contributors

Donate

  * How to donate
  * Qubes Partners
  * How to contribute

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