Qubes OS is described as 'Qubes is an open source operating system designed to provide strong security for desktop computing' and is a very popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Qubes OS for a variety of platforms, including Linux, Self-Hosted, Mac, Windows and BSD apps. The best Qubes OS alternative is Linux Mint, which is both free and Open Source. Other great apps like Qubes OS are Ubuntu, Debian, Fedora and Arch Linux.
Ubuntu Core, a minimalist rendition of Ubuntu , is a lightweight, transactionally updated operating system designed for deployments on embedded and IoT devices, cloud and more.
antiX is a fast, lightweight and easy to install systemd-free Linux live CD distribution based on Debian Stable for Intel-AMD x86 compatible systems.
Edubuntu is an Ubuntu-based operating system that's designed for educational use in schools and other educational institutions.
United Kingdom
Kodachi is a Debian-based distro which can be run from a DVD or USB thumb drive. It filters network traffic via a VPN and Tor, obscuring the user's location. It attempts to clean up after itself, removing traces of its use from the computer.
Oman
NomadBSD is a persistent live system for USB flash drives, based on FreeBSD. Together with automatic hardware detection and setup, it is configured to be used as a desktop system that works out of the box, but can also be used for data...
Germany
EU
Software for humans of indeterminate age. We don't know how old you are. We don't want to know. We are legally required to ask. We won't.
United States
SliTaz is a free operating system, working completely in RAM and booting from removable media such as a CD-ROM or USB key. SliTaz is distributed as a LiveCD, and weighs less than 40MB. The system is quick and responsive, clean and robust.
Switzerland
Oracle Solaris is the #1 enterprise OS, delivering breakthrough high-availability, security, efficiency, and industry-leading scalability/performance.
United States
United States
The CLIP OS project is an open source project maintained by the ANSSI (National Cybersecurity Agency of France) that aims to build a secure, multi-level operating system, based on the Linux kernel and a lot of free and open source software.
AnduinOS is a custom Ubuntu-based Linux distribution that aims to facilitate developers transitioning from Windows to Linux by maintaining familiar operational habits and workflows.
China
United States
France
