Drauger OS

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TrueOS

KaiOS is a free an open-source operating system that brings the best of smartphones to affordable mobile devices. With KaiOS you can use popular apps like WhatsApp, YouTube, Facebook, Google Maps, and 500+ other apps available on the KaiStore. KaiOS was built to empower people around the world through technology. With the belief that everyone should have access to the internet to unleash their potential.

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A fast and friendly, desktop oriented operating system based on Debian Linux. Q4OS provides a set of dedicated utilities and specific optimizations, combined with a focus on getting a productive system easily. This makes it ideal for people who want to get a working environment tailored to individual needs and preferences. Q4OS is a also a good choice for virtual cloud environments due to its very low hardware.

GhostBSD is a free an open-source operating system based on FreeBSD. GhostBSD comes pre-installed with MATE desktop, OpenRC, the LibreOffice suite and OS packages for simplicity adn ease-of-use.

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution. FreeBSD was first released as in 1993, and is today the most popular free and open-source BSD operating system on the market today. In total, FreeBSD accounts for more than 75% of the market. FreeBSD can be installed easily on most machines and is licensed under the permissive BSD License.

OpenBSD is a free and open-source, security-focused, Unix-like operating system based on the Berkeley Software Distribution. For over 25 years OpenBSD has been developed by a community of volunteers funded through contributions collected by The OpenBSD Foundation. OpenBSD is freely available and can be used on most hardware, including Alpha, x86-64, ARMv7, ARMv8 (64-bit), PA-RISC, IA-32, LANDISK, Omron LUNA-88K, Loongson, MIPS64, PowerPC, SPARC64.