Tails is described as 'Debian based live CD/USB with the goal of providing complete Internet anonymity for the user' and is a very popular Linux Distro in the security & privacy category. There are more than 100 alternatives to Tails for a variety of platforms, including Linux, Self-Hosted, Windows, BSD and Mac apps. The best Tails alternative is Qubes OS, which is both free and Open Source. Other great apps like Tails are Whonix, Kali Linux, Parrot Security OS and Alpine Linux.
Qubes is an open source operating system designed to provide strong security for desktop computing.
Runs everything in Virtual Machines.
Like Tails, Qubes OS routes all traffic over Tor. It also has advanced virtualization and hardened security settings that would be desirable to anyone who uses tails for its security upgrades.
Whonix is a desktop operating system designed for advanced security and privacy. Whonix mitigates the threat of common attack vectors while maintaining usability. Online anonymity is realized via fail-safe, automatic, and desktop-wide use of the Tor network.
Unlike most of the other alternatives to Tails, this is a legitimate alternative to Tails.
Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing, originally forked from Backtrack Linux by the Offensive Security team.
Kali Linux is a penetration testing Linux distro that does not come out of the box with Tor routing all network traffic - which is the primary feature of Tails. Although Kali Linux has hacking tools it has no tools for privacy or anonymity.
Parrot is a GNU/Linux distribution based on Debian Testing and designed with Security, Development, and Privacy in mind.
Parrot OS is free from trackers and telemetry "anti-features", and it provides many privacy tools like AnonSurf, Tor Browser, a custom Firefox profile, easy cryptographic tools and much more.
Alpine Linux is a security-oriented, lightweight Linux distribution based on musl libc and busybox.
Artix Linux is a fork (or continuation as an autonomous project) of the Arch-OpenRC and Manjaro-OpenRC projects. Artix Linux offers a lightweight, rolling-release operating system featuring the OpenRC init software.
Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Fast and powerful operating system based on the latest technologies while offering highly productive desktop environment. We focus on security, reliability, long-term stability and conservative integration of verified new features.
Deepin is a reinterpretation to creativity and individuality. It is not only a rebirth to the system appearance, but also a brand-new upgrade to the operating experience! All of this lets deepin become the best partner of your computer.
ReviOS aspires to re-create what Windows as an operating system should have been - easy and simple.
its not even close.. tails is for security and privacy, windows is not
Slackware Linux is an advanced Linux operating system, designed with the twin goals of ease of use and stability as top priorities. Including the latest popular software while retaining a sense of tradition, providing simplicity and ease of use alongside flexibility and power...
PikaOS is a gaming focused Linux distribution focussing on ease of use and high compatibility. Using the know how from Nobara combined with an Ubuntu base.
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Tails is a Debian-based distro you might install on a USB stick and run live. It funnels traffic through TOR to protect anonymity and wipes its behind on the way out. Qubes can do the same through its Whonix VM, but it also offers much more. It's offers security, by building ephemeral VMs in which apps can run. Thsese can be Debian, Fedora or Whonix based. Anonymity+security with Qubes.