The best alternative to Tails is Whonix, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Tails and many of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Tails are Parrot Security OS, Artix Linux, Mageia and SUSE Linux Enterprise.
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.
Almost everyone thinks Whonix is a great Tails alternative.
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.
Almost everyone thinks Parrot Security OS is a great Tails alternative.
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.
Mageia is a fork of Mandriva Linux formed in September 2010 by former employees and contributors to the popular French Linux distribution. Unlike Mandriva, which is a commercial entity, the Mageia project is a community project and a...
SUSE is the original provider of the enterprise Linux distribution and the most interoperable platform for mission-critical computing. It's the only Linux recommended by VMware, Microsoft and SAP. And it's supported on more hardware and software than any other enterprise...
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.
The OpenMandriva distribution is a full-featured Linux desktop and server, sponsored by the OpenMandriva Association, and is based on ROSA, a Russian Linux distribution project which forked Mandriva Linux in 2012.
UCS is an open platform for central identity & access management, IT management, and active directory, with a web portal for easy access to applications.
Univention Corporate Server (UCS) is the most popular Web-based & SaaS alternative to Tails.
Knoppix is an operating system based on Debian designed to be run directly from a CD / DVD (Live CD) or a USB key (Live USB), one of the first of its kind for any operating system. When starting a program, it is loaded from the removable medium and decompressed into a RAM drive.
MINIX is a POSIX-compliant Unix-like operating system based on a tiny microkernel running in kernel mode with the rest of the operating system running as a number of isolated, protected, processes in user mode.
MINIX 3 is the most popular Mac alternative to Tails.
Innovative, portable Linux distro fusing FreeBSD tools with Musl and LLVM, building from source for a simple yet comprehensive system.
Bugtraq system offers the most comprehensive distribution, optimal, and stable with automated services manager in real time.
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Unlike most of the other alternatives to Tails, this is a legitimate alternative to Tails.