Tails is a Debian based live CD/USB with the goal of providing complete Internet anonymity for the user.
Cost / License
- Free
- Open Source (GPL-3.0)
Application types
Platforms
- Linux
- Tor Browser
- GNOME
- Tor
- Thunderbird


The best Operating System alternative to Parrot Security OS is Tails, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Parrot Security OS and 13 are Operating Systems so hopefully you can find a suitable replacement. Other interesting Operating System alternatives to Parrot Security OS are Kali Linux, Qubes OS, Whonix and BlackArch.
Tails is a Debian based live CD/USB with the goal of providing complete Internet anonymity for the user.


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.




Qubes is an open source operating system designed to provide strong security for desktop computing.




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.



BlackArch Linux is an Small Arch Linux iconArch Linux -based distribution for penetration testers and security researchers. The repository contains 2554 tools.




secureblue is a security-focused, open-source operating system that ships as rpm-ostree container images derived from Fedora Atomic/CoreOS. It emphasizes proactive hardening—such as removing SUID binaries, enabling hardened_malloc, and disabling unprivileged user...


BackBox is a Linux distribution based on Ubuntu developed to perform penetration tests and security assessments. Designed to be fast, easy to use and to provide a minimal yet complete desktop environment thanks to its own software repositories...




Athena OS is an Arch-derived Linux distribution designed for penetration testing, bug-bounty hunting and InfoSec students. The distribution provides a way to connect directly to some of the e-learning hacking resources, such as Hack The Box, Offensive Security, PWNX and InfoSec...

Matriux is a fully featured security distribution consisting of a bunch of powerful, open source and free tools that can be used for various purposes including, but not limited to, penetration testing, ethical hacking, system and network administration, cyber forensics...




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.
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.
Vitruvian is an operating system based on Linux, heavily inspired by BeOS, bringing the elegance and simplicity of a classic operating system to modern hardware. It leverages Linux's hardware support while maintaining the responsive, user-friendly nature of BeOS.



