Subgraph OS has been discontinued. Similar apps include Tails, which is free and open source. Other options are Manjaro Linux, EndeavourOS, Qubes OS and Whonix. There's no shortage of Operating Systems like Subgraph OS, with more than 25 alternatives for Linux, self-hosting, Mac, Windows and the web.
Regolith Linux is a distro for people that prefer a spartan interface with polished and consistent system management. It brings together a trifecta of Ubuntu’s ubiquity, i3 -wm’s efficient and productive interface, and Gnome’s system...
United States
Privacy-focused Linux distribution that routes traffic through Tor or VPN with DNSCrypt, a kill switch and a live security dashboard. Free for personal and other non-commercial use.
Oman
Serenity is a graphical 32-bit Unix-like operating system with 90s aesthetics and built for x86 systems.
Sweden
EU
The ubermix is an all-free, specially built, Linux-based operating system designed from the ground up with the needs of education in mind.
United States
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.
Xinuos OpenServer™ 10 is a 64-bit operating system based on the popular FreeBSD and designed to support business applications within an enterprise environment.
An open-source OS for exploration, creation, and play. Kano OS is based on the Raspbian OS which itself is based on Debian, a Linux based operating system.
United Kingdom
Live bootable linux CD supported by US department of defense, featuring firefox, thunderbird, word processor, and reads USB flash drives.
Based in Ottawa, Ontario, Canada, BlackBerry QNX has provided foundational software for many of the world’s mission-critical embedded systems since 1982. From nuclear power plants, surgical robots and class III life-critical medical devices to autonomous vehicles and brands like...
United Kingdom
The Friend Unifying Platform is a powerful open source framework that will allow developers to decouple their applications from technology silos. It will empower developers to swiftly deploy on and integrate with Ethereum and other decentralised technologies in a new blockchain...
Founded in 2014 by Oliver Pinter and Shawn Webb, HardenedBSD is a security-enhanced fork of FreeBSD. The HardenedBSD Project is implementing many exploit mitigation and security technologies on top of FreeBSD.
France
Canada
