A Fast, friendly, open-source operating system, for newbies, geeks & DIY enthusiasts.




RISC OS is described as 'Risc OS is an open-source OS specifically designed to run on the ARM chipset' and is a operating system in the os & utilities category. There are more than 100 alternatives to RISC OS for a variety of platforms, including Linux, Self-Hosted, BSD, Mac and Windows apps. The best RISC OS alternative is Linux Mint, which is both free and Open Source. Other great apps like RISC OS are Ubuntu, Debian, Fedora and Arch Linux.
A Fast, friendly, open-source operating system, for newbies, geeks & DIY enthusiasts.




MidnightBSD is a new BSD-derived operating system developed with desktop users in mind. It includes all the software you'd expect for your daily tasks — email, web browsing, word processing, gaming, and much more.


Bedrock Linux is a meta Linux distribution which allows users to utilize features from other, typically mutually exclusive distributions. Essentially, users can mix-and-match components as desired. For example, one could have:
CrunchBang++ is an open source and completely free [of cost (#!++ does include several of Debian’s non-free packages as well as the non-free repository)] computer operating system, designed as a continuation of the .




illumos is a free and open-source Unix operating system. It derives from OpenSolaris, which in turn derives from SVR4 UNIX and Berkeley Software Distribution (BSD). illumos comprises a kernel, device drivers, system libraries, and utility software for system administration.
A project providing a fully free (as in freedom) derivative of Arch Linux. Inheriting Arch's lightweight and flexibility, Parabola offers software freedom plus all power to the users.



Dragora GNU/Linux is a distribution created from scratch with the intention of providing a stable, multi-platform and multi-purpose operating system. It is built upon 100% free software. It has a very simple packaging system that allows installing, removing, upgrading and...



Nanos is a new kernel designed to run one and only one application in a virtualized environment. It has several constraints on it compared to a general purpose operating system such as Windows or Linux - namely it's a single process system with no support for running...

GoboLinux is a modular Linux distribution: it organizes the programs in your system in a new, logical way.




Elive provides a dynamic and clean interface without saturating the look. Nothing in the desktop is static. Simplicity and intuitive is one of its best points.




openmamba GNU/Linux is a ready-to-use operating system for netbooks, notebooks, desktop and server personal computers.

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.