Tails is described as 'The Amnesic Incognito Live System (Tails) is a Debian 9 based live CD/USB with the goal of providing complete Internet anonymity for the user. The product ships with several Internet applications, including web browser, IRC client, mail client' 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.
Tails alternatives are mainly Operating Systems, but if you're looking for
Linux Distros or Penetration Testing Tools you can filter on that. You can also filter by region, for example
EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Tails.
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.