Open Source Operating Systems
Operating systems that are freely available and open-source, allowing users to modify and distribute the code. These systems often have active community support and are used in various environments from personal desktops to enterprise servers.
Updated June 21, 2026
Products that define this theme
A representative set of Operating Systems products that exemplify Open Source Operating Systems, curated as a starting point for finding similar software.
Selected from G2's verified user reviews and ratings, then matched to this theme for relevance.
How Did G2 Choose These Open Source Operating Systems Products?
The 22 products shown represent a defining sample for the "Open Source Operating Systems" theme within Operating Systems on G2 — not an exhaustive list. They are a curated starting point for discovering similar software.
- Sourced from products with verified G2 user reviews and ratings.
- Matched to this theme based on each product's described capabilities and fit, ordered by relevance.
- Rankings and inclusion are unbiased and are not influenced by vendor payment.
Refreshed weekly. Last updated: June 21, 2026.
Slackware is a longstanding Linux distribution renowned for its simplicity, stability, and adherence to Unix-like principles. Developed by Patrick Volkerding in 1993, it is the oldest actively...
VyOS Networks is the global leader in open-source networking for organizations that need secure, scalable, automated networking across bare metal, cloud, and edge. Designed with flexibility...
Slax is a modern, portable, small and fast Linux operating system with modular approach and outstanding design. It runs directly from your USB flash drive without installing, so you can carry it...
BunsenLabs Linux is a distribution offering a light-weight and easily customizable Openbox desktop.The distribution consists of configuration and resource packages installed on top of Debian.
BackBox.org is a free, open-source community project dedicated to enhancing IT security through the promotion and utilization of open-source software. It offers a comprehensive Linux distribution...
BlackArch Linux is an Arch Linux-based distribution tailored for penetration testers, security researchers, and ethical hackers. It offers a comprehensive suite of over 2,800 security tools,...
Parrot Security OS is a free and open-source GNU/Linux distribution based on Debian, tailored for security experts, developers, and privacy-conscious users. It offers a comprehensive suite of tools...