NethSecurity is a fully-featured open source Linux firewall that streamlines network security deployment in just a few clicks. NethSecurity is a spin-off of the project. It combines multiple security features into a single platform including firewalling, intrusion detection/prevention, antivirus, multi-WAN, DNS and content filtering.

Ultimate Edition, first released in December 2006, was a fork of Ubuntu and Linux Mint though recent versions (starting in 2024) have been based on Arch Linux. The goal of the project is to create a complete, seamlessly integrated, visually stimulating, and easy-to-install operating system. Single-button upgrade is one of several special characteristics of this distribution. Other main features include custom desktop and theme with 3D effects, support for a wide range of networking options, including WiFi and Bluetooth, and integration of many extra applications and package repositories.

CRUX is a lightweight, Linux distribution for computers running on 64-bit x86 processors. The distribution is targeted at experienced Linux users. The primary focus of this distribution is "keep it simple", which is reflected in a simple tar.gz-based package system, BSD-style initscripts, and a relatively small collection of trimmed packages. The secondary focus is utilization of new Linux features and recent tools and libraries.

NethServer is a Rocky Linux-based application server specifically designed for small offices and medium enterprises. It facilitates the management of applications through a user-friendly web interface. NethServer operates as a container orchestrator, a system that can manage and coordinate the deployment of various applications. The product also forms the basis of the firewall distribution.

The Amnesic Incognito Live System (Tails) is a Debian-based live DVD/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 instant messenger, all pre-configured with security in mind and with all traffic anonymised. To achieve this, Incognito uses the Tor network to make Internet traffic very hard to trace.

Porteus is a fast, portable and modular live CD/USB medium based on Slackware Linux. The distribution started as a community remix of Slax, another Slackware-based live CD, with KDE 3 as the default desktop for the i486 edition and a stripped-down KDE 4 as the desktop environment for the x86_64 flavour. There are now several desktop flavours of the distribution, which include editions running Cinnamon, GNOME, KDE Plasma, LXQt, MATE, and Xfce.

PorteuX is a Linux distribution based on Slackware Linux, inspired by Slax and Porteus and available to the public for free. Its main goal is to be fast, small, portable (run from a thumb drive), modular and optionally immutable. It is pre-configured for basic usage, including lightweight applications for each one of the seven desktop environments (Cinnamon, GNOME, KDE Plasma, LXDE, LXQt, MATE and Xfce) available. No browser is included, but an app store is provided for downloading any of the most popular browsers, as well as other applications.

DynFi is a firewall platform based on FreeBSD. The project provides utilities for VPN, IDS, proxy, anti-virus, and packet filtering. Support is provided in several languages, including French, English, and German. DynFi is designed to be deployed on both physical hardware and in virtual environments.

Dr.Parted Live is a bootable GNU/Linux distribution based on Debian Testing. It is a live CD/USB featuring a lightweight Openbox window manager and useful applications for data backup, restore and recovery.

GoboLinux is a modular Linux distribution - it organizes the programs in a new, logical way. Instead of having parts of a program thrown at /usr/bin, other parts at /etc and yet more parts thrown at /usr/share/something/or/another, each program gets its own directory tree, keeping them all neatly separated and allowing the user to see everything that's installed in the system and which files belong to which programs in a simple and obvious way.

Mabox is a Manjaro-based rolling release distribution. Mabox Linux features the Openbox window manager as its default interface and provides a welcome screen with access to utilities which add additional software to the operating system.

Nitrux is a Linux distribution based on Debian's Unstable (sid) branch with additional packages pulled in from Ubuntu LTS repositories. Nitrux strives to be a distribution suitable for laptops and desktop computers. Its main desktop environment is NX Desktop, a KDE Plasma desktop enhanced with "plasmoids" to create a special blend of aesthetics and functionality. The project also focuses on using redistributable, portable applications using the AppImage format. Registration with an e-mail address was required to download this distribution, however public downloads have been available since mid-2020.

Linux Lite is a beginner-friendly Linux distribution based on Ubuntu's long-term support (LTS) release and featuring the Xfce desktop. Linux Lite primarily targets Windows users. It aims to provide a complete set of applications to assist users with their everyday computing needs, including a full office suite, media players and other essential daily software.

CachyOS is a Linux distribution based on Arch Linux. It focuses on speed and security optimisations - the default Linux kernel is heavily optimised using the BORE (Burst-Oriented Response Enhancer) scheduler, while the desktop packages are compiled with LTO, x86-64-v3 and x86-64-v4, Zen 4 optimization, security flags and performance improvements. The available desktop environments and window managers include KDE, GNOME, Xfce, i3wm, Wayfire, LXQt, OpenBox, Cinnamon, COSMIC, UKUI, LXDE, MATE, Budgie, Qtile, Hyprland and Sway. CachyOS also ships with both graphical and command-line installers and provides a Firefox-based browser (called Cachy-Browser) with some security enhancements and performance optimisations.

EasyOS is an experimental Linux distribution which uses many of the technologies and package formats pioneered by Puppy Linux. The distribution features custom container technology called Easy Containers which can run applications or the entire desktop environment in a container. Packages, desktop settings, networking and sharing resources over the network can all be controlled through graphical utilities.

KaOS is a desktop Linux distribution that features the latest version of the KDE desktop environment, the Calligra office suite, and other popular software applications that use the Qt toolkit. It was inspired by Arch Linux, but the developers build their own packages which are available from in-house repositories. KaOS employs a rolling-release development model and is built exclusively for 64-bit computer systems.

Kubuntu is a free, user-friendly Linux distribution based on KDE's desktop software and on the Ubuntu operating system. It has a biannual release cycle. Besides providing an up-to-date version of the KDE desktop at the time of the release, the project also releases updated KDE packages throughout the lifetime of each release.

Lubuntu is a variant of Ubuntu that uses the LXQt desktop environment. (Versions prior to 18.10 shipped with the LXDE desktop.) It includes essential applications and services for daily use, including office suite, PDF reader, image editor and multimedia players. A distribution available for both 32-bit and 64-bit computers, Lubuntu is intended to be user-friendly, lightweight and energy efficient.

Ubuntu Cinnamon is an official flavour of the Ubuntu distribution featuring the Cinnamon desktop. The project strives to offer modern tools while providing a user-friendly desktop which will feel familiar for users coming from other operating systems, such as Microsoft Windows.

Ubuntu Kylin is an official Ubuntu flavour whose primary goal is to create a variant of Ubuntu optimised for Chinese users (using the Simplified Chinese writing system), although it also supports other languages. The default desktop is called UKUI (Universal Kylin User Interface) which is based on MATE desktop and is developed with the Qt toolkit. UKUI strives to adhere to the friendly-and-simple design concept. The distribution also includes more than 20 applications developed in-house, including Kylin Assistant, Kylin Video, Kylin Screenshots and Software Center.

Ubuntu MATE is a desktop Linux distribution which aims to bring the simplicity and elegance of the Ubuntu operating system through a classic, traditional desktop environment - the MATE desktop. MATE is the continuation of the GNOME 2 desktop environment which was used as Ubuntu's default desktop until 10.10 (when it was replaced by Unity). The project began its life as an Ubuntu "remix", but starting with version 15.04, it was formally accepted as an official member of the Ubuntu family of Linux distributions.

Ubuntu Budgie (previously budgie-remix) is an Ubuntu-based distribution featuring the Budgie desktop, originally developed by the Solus project. Written from scratch and integrating tightly with the GNOME stack, Budgie focuses on simplicity and elegance, while also offering useful features, such as the Raven notification and customisation centre.

Xubuntu is a community-developed operating system based on Ubuntu. It comes with Xfce, which is a stable, light and configurable desktop environment.

An official variant of Ubuntu, Ubuntu Studio is a Linux-based operating system for creative individuals in the areas of audio production, video production, graphics design, photography and desktop publishing. It makes professional audio accessible on Linux; it uses the JACK sound server and a kernel built with a low-latency patch. Up until version 20.10 Ubuntu Studio shipped with the Xfce desktop environment, but this was replaced by KDE Plasma in October 2020.

Ubuntu Unity is a flavour of Ubuntu featuring the Unity desktop environment (the default desktop environment developed and used by Ubuntu from 2010 to 2017). Unity debuted in the netbook edition of Ubuntu 10.10; it was initially designed to make more efficient use of space given the limited screen size of netbooks, including a vertical application switcher called "the launcher" and a space-saving horizontal multipurpose top menu bar. Ubuntu switched from Unity to GNOME in 2017, but the desktop was resurrected again as an unofficial "Ubuntu Unity Remix" in 2020. It became an official flavour of Ubuntu during the development cycle of Ubuntu 22.10 in 2022.

Edubuntu is a partner project of Ubuntu, a distribution suitable for classroom use. The aim is that an educator with limited technical knowledge and skill will be able to set up a computer lab, or establish an on-line learning environment, in an hour or less, and then administer that environment without having to become a fully-fledged Linux geek.

Ubuntu is a complete desktop Linux operating system, freely available with both community and professional support. The Ubuntu community is built on the ideas enshrined in the Ubuntu Manifesto: that software should be available free of charge, that software tools should be usable by people in their local language and despite any disabilities, and that people should have the freedom to customise and alter their software in whatever way they see fit. "Ubuntu" is an ancient African word, meaning "humanity to others". The Ubuntu distribution brings the spirit of Ubuntu to the software world.

Q4OS is a Debian-based desktop Linux distribution designed to offer classic-style user interface (Trinity) and simple accessories, and to serve stable APIs for complex third-party applications, such as Google Chrome, VirtualBox and development tools. The system is also very useful for virtual cloud environments due to its very low hardware requirements.

Zorin OS is an Ubuntu-based Linux distribution designed especially for newcomers to Linux. It has a Windows-like graphical user interface and many programs similar to those found in Windows. Zorin OS also comes with an application that lets users run many Windows programs. The distribution's ultimate goal is to provide a Linux alternative to Windows and let Windows users enjoy all the features of Linux without complications.

Emmabuntüs is a desktop Linux distribution with editions based on Debian's Stable branch with both the Xfce and LXQt desktop environments available. It strives to be beginner-friendly and reasonably light on resources so that it can be used on older computers. It also includes many modern features, such as large number of pre-configured programs for everyday use, dockbar for launching applications, easy installation of non-free software and media codecs, and quick setup through automated scripts. In addition, this distribution addresses accessibility issues, for both installation and day to day usage, and includes a large set of applications supporting visually impaired people. The distribution supports English, French, German, Italian, Portuguese and Spanish languages.

deepin (formerly, Deepin, Linux Deepin, Hiweed GNU/Linux) is a Debian-based distribution (it was Ubuntu-based until version 15 released in late 2015) that aims to provide an elegant, user-friendly and reliable operating system. It does not only include the best the open source world has to offer, but it has also created its own desktop environment called DDE or Deepin Desktop Environment which is based on the Qt 5 toolkit. Deepin focuses much of its attention on intuitive design. Its home-grown applications, like Deepin Software Centre, DMusic and DPlayer are tailored to the average user. Being easy to install and use, deepin can be a good Windows alternative for office and home use.

Regata OS is a Brazilian Linux distribution based on openSUSE, focusing on desktop and gaming needs. Its main characteristics include a Regata OS store for installing applications and games, out-of-the-box integration with Google Drive, support for a gaming mode via the Vulkan graphics API, an extensive library of games in the Regata OS Game Access portal, support for configuration of hybrid graphics in notebooks, and easy transfer of files between a computer and a smartphone. The distribution's user interface is KDE Plasma.

RebornOS is a desktop-oriented Linux distribution based on Arch Linux. Although the RebornOS live image provides one desktop only, the installation process offers a choice to install one of the many popular desktop environments and window managers. Other interesting features of the distribution include support for Flatpak packages, optional installation of Anbox for running Android applications, a capability to rollback the system to a previous date, and graphical system configuration and maintenance tools.

EndeavourOS is a rolling release Linux distribution based on Arch Linux. The project aims to be a spiritual successor to Antergos - providing an easy setup and pre-configured desktop environment on an Arch base. EndeavourOS offers both off-line and on-line install options. The off-line installer, Calamares, uses the KDE Plasma desktop by default. The on-line installer can install optional software components, including most popular desktop environments.

Rescuezilla is a specialist Ubuntu-based distribution designed for system rescue tasks, including backups and system restoration. It was forked from the "Redo Backup & Rescue" project which was abandoned in 2012. Like its predecessor, it allows a "bare-metal restore" after any hardware failure directly from the live image. Some of the features include: works directly from the live CD/USB image; works with Linux, macOS and Windows; automatically searches a local area network for drives to backup to or restore from; recovers lost or deleted data files; includes configuration tools for managing disk and drives. Rescuezilla uses a simplified LXDE user interface.

Finnix is a small, self-contained, bootable Linux CD distribution for system administrators, based on Debian. It can be used to mount and manipulate hard drives and partitions, monitor networks, rebuild boot records, install other operating systems, and much more.

ReactOS is a free and open-source operating system based on the best design principles found in the Windows NT architecture. Written completely from scratch, ReactOS is not a Linux-based system and it shares none of the UNIX architecture. The main goal of the ReactOS project is to provide an operating system which is binary compatible with Windows. This will allow Windows applications and drivers to run as they would on a Windows system. Additionally, the look and feel of the Windows operating system is used, such that people accustomed to the familiar user interface of Windows would find using ReactOS straightforward. The ultimate goal of ReactOS is to allow people to use it as an alternative to Windows without the need to change software they are used to.

Feren OS is a desktop Linux distribution based on Ubuntu and featuring the KDE Plasma desktop. It ships with a tweaked Calamares system installer, a custom theme and fonts, the Vivaldi web browser, boot options for advanced users, and a Feren OS Tour application, among the many home-built features and improvements. Prior to November 2020, the distribution was based on Linux Mint and included an edition with the Cinnamon desktop.

DragonOS is a Lubuntu-based desktop distribution which is focused on software defined radio (SDR). The distribution provides a pre-installed suite of the most powerful and accessible open source SDR software. DragonOS has verified support for a range of inexpensive and powerful SDR hardware, including RTL-SDR, HackRF One, LimeSDR, BladeRF, and others.

Voyager Live is an Xubuntu-based distribution and live DVD showcasing the Xfce desktop environment. Its features include the Avant Window Navigator or AWN (a dock-like navigation bar), Conky (a program which displays useful information on the desktop), and over 300 photographs and animations that can be used as desktop backgrounds. The project also develops several other editions of Voyager Live - a "GE" edition with GNOME Shell, a "GS" variant for Gamers, and a separately-maintained flavour based on Debian's "stable" branch.