Best RISC OS Alternatives & Competitors in 2025

Welcome to Raspbian. Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware. An operating system is the set of basic programs and utilities that make your Raspberry Pi run.

GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.

Open Source

Ubuntu is a Debian Linux-based open source operating system for desktop computers.

Open Source

Linux Mint is one of the most popular desktop Linux distributions and used by millions of people.

Open Source

Debian is a free distribution of the GNU/Linux operating system.

FedBerry is a Fedora Remix specifically built for use with Raspberry Pi® 2/3 Model B computers.

The Linux kernel is the operating system kernel used by the Linux family of Unix-like operating...

Open Source

Windows 7 is another operating system developed by Microsoft, designed to provide users with a full suite of options according to their needs.

Run code faster than the speed of light. A unikernel running one and only one application in a virtualized environment. More secure and faster than Linux. All while keeping it simple.

Open Source

Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.

Open Source

A step-by-step guide how to create a simple OS from scratch.

Windows 10 unveils new innovations & is better than ever. Shop for Windows 10 laptops, PCs, tablets, apps & more. Learn about new upcoming features.

FreeBSD is an advanced operating system for x86 compatible (including Pentium® and Athlon™)...

Open Source