Whonix!

Linux Mint is an elegant, easy to use, up to date and comfortable GNU/Linux desktop distribution. Linux Mint is an Ubuntu -based distribution ( so Debian based ) whose goal is to provide a more complete out-of-the-box experience by including browser plugins, media codecs, support for DVD playback, Java and other components. It also adds a custom desktop and menus, several unique configuration tools, and a web-based package installation interface. Linux Mint is compatible with Ubuntu software repositories. »

elementary OS is a free, fast and aesthetically pleasing operating system based on Ubuntu .

Xubuntu is an elegant and easy-to-use operating system. Xubuntu comes with Xfce, which is a stable, light and configurable desktop environment.

Kubuntu is an official "flavor" of Ubuntu that uses the KDE desktop environment instead of the default Unity . This gives it a completely different look and feel.

Linux is a free operating system, and Puppy Linux is a special build of Linux meant to make computing easy and fast.

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 decompression is transparent and on-the-fly.Although Knoppix is primarily designed to be used as a Live CD, it can also be installed on a hard disk like a typical operating system. Computers that support booting from USB devices can load Knoppix from a live USB flash drive or memory card.There are two main editions of Knoppix: the traditional Compact Disc (700 megabytes) edition and the DVD (4.7 gigabytes) "Maxi" edition. Each of these main editions has two language-specific editions: English and German.Knoppix mostly consists of free and open source software, but also includes proprietary software »

Parrot Security OS (or ParrotSec) is a GNU/LINUX distribution based on Debian. It was built in order to perform penetration tests (computer security), Vulnerability Assessment and Mitigation, Computer Forensics and Anonymous Surfing.

BunsenLabs Linux is a distribution offering a light-weight and easily customizable Openbox desktop. The current release is Hydrogen, built on top of Debian Jessie. The project is a community continuation of CrunchBang Linux.

Subgraph believes that the best way to empower people to communicate and live freely is to develop technology that is secure, free, open-source, and verifiably trustworthy.

Lightweight Portable Security (LPS) is a Linux LiveCD developed and publicly distributed by the United States Department of Defense’s Software Protection Initiative that is designed to serve as a secure end node. It can run on almost any Intel-based computer (PC or Mac). LPS boots only in RAM, creating a pristine, non-persistent, end node. It is capable using Common Access Card (CAC) software for authentication into DoD networks.LPS-Public turns an untrusted system (such as a home computer) into a trusted network client. No trace of work activity (or malware) can be written to the local computer hard drive. As of September 2011 (version 1.2.5), the LPS public distribution includes a smart card-enabled Firefox browser supporting DoD's CAC and Personal Identity Verification (PIV) cards, a PDF and text viewer, Java, a file browser, remote desktop software (Citrix, Microsoft or VMware View), an SSH client, the public edition of Encryption Wizard and the ability to use USB flash drives. A Public Deluxe version is available that adds OpenOffice and Adobe Reader software. »

Pearl Linux OS has been available for free download since 12/2014 with our first release simply titled Pearl Linux. It was based on the 14.04 released version of Ubuntu. That release was using the XFCE desktop environment. Since then we now offer the MATE, GNOME, LXDE and soon to come our own DE PearlDE which will be a mix of LXDE and XFCE4 desktops. As of the latest release Pearl OS 3.0 we are now maintaining our own repository on site. Also all tho far from ready, we are working on the new website. The forum ain't pretty but it is up and running for ya all to post any questions you may have. »

Liberté Linux is a secure, lightweight, and easy to use Gentoo-based Linux distribution intended as a communication aid in hostile environments. Liberté installs on a USB key, and boots on any computer or laptop.

Linux Kodachi operating system is based on Debian 8.6 it will provide you with a secure, anti forensic, and anonymous operating system considering all features that a person who is concerned about privacy would need to have in order to be secure.