Browse free open source Operating Systems and projects below. Use the toggles on the left to filter open source Operating Systems by OS, license, language, programming language, and project status.

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

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  • 1
    Xiaomi.eu Multilang MIUI ROMs

    Xiaomi.eu Multilang MIUI ROMs

    OFFICIAL mirror of MIUI Multilang ROM by https://xiaomi.eu/

    Included languages: English (en.miui.com, xiaomi.eu) Chinese (miui.com) Polish (Acid, miuipolska.pl) Slovak (ingbrzy, https://miuios.cz) Czech (VMach, https://miuios.cz) Bulgarian (Global) Hungarian (vagyula, miui.hu) French (Global) Swedish (Global) Russian (Global) Ukrainian (Global) Belorussian (Global) Croatian (Masva, MIUI Adria) Vietnamese (Belmont-Gabriel) Italian (miui.it) Greek (Global) Norwegian (Global) Dutch (cueie, mannyribo, redmaner) Spanish (nosijf982) Turkish (suatsari) Brazilian-Portuguese (Global, Feurrado, Lobianco) Portuguese (KcNirvana, Lippe35) Hebrew (Global) Romanian (ashtefan) German (muhamed89, cp82, dahool2016, and more) Catalan (deivids84) Korean (cjhyuky, bradly1, xiaomiqm) Slovenian (bostjan2016) Serbian (dudjaa) Thai (Global) Finnish (dogiex) Arabic (Global) Japanese (ScratchBuild) Burmese (Global) Danish (Global)
    Leader badge
    Downloads: 16,337 This Week
    Last Update:
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  • 2
    Rufus

    Rufus

    Utility to create bootable USB flash drives

    Rufus is a standalone app designed to format and create a bootable USB drive for a large variety of ISOs. The app is just over 1MB in size and is notably faster than similar competitor apps such as the Windows 7 USB utility, Universal USB Installer, and UNetbootin. Rufus can come in handy when you need to simply format a USB drive, install an OS on a machine that lacks a CD/DVD-ROM drive, or when you need to boot an operating system temporarily without intentions of actually installing the media. This can be immensely useful while you're on the go or just need access to an OS for a temporary, isolated reason. The app can even be used to flash firmware to BIOS or other destinations by just using DOS. Even though Rufus is a tiny utility in comparison to other USB creation tools that can be rather bulky in size, it contends easily with the competition and creates bootable USB drives in record time!
    Downloads: 895 This Week
    Last Update:
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  • 3
    deepin
    deepin is a Debian-based distribution that aims to provide an elegant, user-friendly and reliable operating system. It does not only include the best the open source world has to offer, but it has also created its own desktop environment called DDE or Deepin Desktop Environment which is based on the Qt 5 toolkit. Deepin focuses much of its attention on intuitive design. Its home-grown applications, like Deepin Software Centre, DMusic and DPlayer are tailored to the average user. Being easy to install and use, deepin can be a good Windows alternative for office and home use.
    Leader badge
    Downloads: 1,427 This Week
    Last Update:
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  • 4
    IPCop Firewall

    IPCop Firewall

    Linux firewall distribution geared towards home and SOHO users.

    The IPCop Firewall is a Linux firewall distribution. It is geared towards home and SOHO users. The IPCop web-interface is very user-friendly and makes usage easy.
    Downloads: 97 This Week
    Last Update:
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

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  • 5
    Robolinux

    Robolinux

    Announcing Robolinux Cinnamon 14.1

    Announcing The New Robolinux Series 14 Mate LTS - 2034 Robolinux is very pleased to announce a completely new 14.1 Mate privacy centered 1inux operating system you can download freely while also offering our users an optional 14+ advanced upgrade which comes with our Untracker and FAAST Boot along with one click popular privacy software installers like Tor and I2p, Wireshark and Bleachbit plus many more for a fair and reasonable price. Robolinux14.1-Mate is ideal for beginners and advanced users. We are proud that it comes with Enoch AI which is TOTALLY 100% PRIVATE, FREE, HONEST & UNCENSORED built into Robolinux Cinnamon 14.1 The Robolinux 14.1 version with rock solid Long Term Support through 2034! requires users to set secure boot in their BIOS. It is currently available in the Cinnamon desktop flavor. we will release series 14 Xfce version in the next two months.For more information please see Readme file. Warmest regards John Martinson Robolinux.org
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    Downloads: 72 This Week
    Last Update:
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  • 6
    Syllable Desktop is a complete operating system that is easy to use, powerful, lightweight and extraordinarily fast and responsive. It has its own kernel, filesystem, GUI and applications. Syllable Server is a matching small and efficient Linux server.
    Downloads: 32 This Week
    Last Update:
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  • 7
    Unetbootinbitti

    Unetbootinbitti

    Tool for creating live usb-drives and downloading distros

    Tool for creating live usb-drives and downloading distros. This is an upgraded version of Unetbootin focusing on Bittix linux 9 and above and Linux Mint and Linux Mint debian. Has Distrowatch.com link etc.
    Downloads: 13 This Week
    Last Update:
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  • 8
    BEE free TECH

    BEE free TECH

    [ Beautiful, Effective, Efficient, Freedom, Technology ]

    BEE free 20.04 is a community-driven Linux distribution based on Ubuntu 20.04 .
    Downloads: 2 This Week
    Last Update:
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  • 9
    GTCop Professional Security Appliance aims to provide a powerful tool for satellite communications, with enhanced QoS and bandwidth controls. As derived from IPCop Firewall, it is a stable, secure, easy to configure and maintain GNU/Linux firewall box.
    Downloads: 0 This Week
    Last Update:
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 10
    Kurisu OS 3.0

    Kurisu OS 3.0

    Kurisu OS 3.0

    Kurisu OS 3.0 es un sistema operativo basado en OpenSUSE 12.1,que trae consigo ventajas como la posibilidad de instalación y utilización de aplicaciones de varias plataformas: Windows, Linux,Mac (Mac todavía en fase experimental).Ademas es un sistema sencillo y accesible que cualquier persona sin grandes conocimientos puede usar,ya que utiliza GNOME 3 una interfaz de usuario sencilla y practica la cual se adapta no solo a tus necesidades de usuario sino que además se adapta a la edad y potencia de tu ordenador permitiendote usar 2 escritorios,uno para ordenadores actuales que reunen unas caracteristicas que le permiten utilizar un escritorio hermoso con las ultimas tecnologías de aceleración de gráficos y un escritorio para rescatar ese viejo ordenador que tenias olvidado en tu garaje,ya que el escritorio alternativo te permite usar menos recursos.
    Downloads: 0 This Week
    Last Update:
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  • 11
    SME Server

    SME Server

    The Koozali SME Server is a simple and robust server gateway for SOHO

    The Koozali SME Server is the open source community side of the original e-smith server. SME Server consists of a modified Red Hat / CentOS Linux installation, together with a number of server applications as well as the server management web panel. Its strengths are its ease to use for anyone able to use a web interface, and its robustness, giving the ability to recover its initial state even after any upgrade. The server is designed for Small Offices and Home Offices to act as a gateway with a firewall web and email services, but fits also home user needs or even the needs as a simple and robust server only in the cloud to host your website projects and emails.
    Downloads: 0 This Week
    Last Update:
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  • 12
    elementary OS

    elementary OS

    A fast and open replacement for Windows and OS X

    elementary is a software platform; a unified computer operating system. We have a commitment to a particular toolkit (GTK+) and support a preferred programming language (Vala). We decide how our apps will behave. Sometimes we take control and shape the out-of-the-box experience as much as we possibly can by creating our own apps. We've created an application development framework (Granite) and other developer tools that are designed to help developers build apps specifically for our platform.
    Downloads: 0 This Week
    Last Update:
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