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

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  • 1
    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: 1,219 This Week
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  • 2
    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: 107 This Week
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  • 3
    AlienVault OSSIM

    AlienVault OSSIM

    Open Source SIEM

    OSSIM, AlienVault’s Open Source Security Information and Event Management (SIEM) product, provides event collection, normalization and correlation. For more advanced functionality, AlienVault Unified Security Management (USM) builds on OSSIM with these additional capabilities: * Log management * Advanced threat detection with a continuously updated library of pre-built correlation rules * Actionable threat intelligence updates from AlienVault Labs Security Research Team * Rich analytics dashboards and data visualization
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    Downloads: 109 This Week
    Last Update:
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  • 4
    Endian Firewall Community
    Endian Firewall Community (EFW) is a "turn-key" linux security distribution that makes your system a full featured security appliance with Unified Threat Management (UTM) functionalities. The software has been designed for the best usability: very easy to install, use and manage and still greatly flexible. The feature suite includes stateful packet inspection firewall, application-level proxies for various protocols (HTTP, FTP, POP3, SMTP) with antivirus support, virus and spam-filtering for email traffic (POP and SMTP), content filtering of Web traffic and a "hassle free" VPN solution (based on both OpenVPN and IPsec).
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    Downloads: 275 This Week
    Last Update:
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  • Add Two Lines of Code. Get Full APM. Icon
    Add Two Lines of Code. Get Full APM.

    AppSignal installs in minutes and auto-configures dashboards, alerts, and error tracking.

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  • 5
    Soplos Linux Tyson

    Soplos Linux Tyson

    Soplos Linux is a Debian Testing-based distribution with the Plasma 6

    Soplos Linux Tyson is a GNU/Linux distribution based on Debian Testing, designed for users taking their first steps into Linux or looking for a modern, stable, and efficient daily driver. Key Features: ✅ Based on Debian Testing, offering rolling updates and always up-to-date software. ✅ Ships with the KDE Plasma 6 desktop – modern, elegant, and highly customizable. ✅ Clean and minimalist interface with no unnecessary bloatware. ✅ Compatible with modest hardware – ideal for users unable to upgrade to newer versions of Windows. ✅ A Software Center tailored for Plasma is in development, built with Qt and Python, to simplify application management. ✅ Future support planned for proprietary drivers to improve hardware compatibility. Soplos Linux Tyson aims to deliver a simple yet powerful experience without compromising flexibility, with plans to expand with dedicated repositories and more user-friendly tools. ✨ Give Soplos Linux Tyson a try and discover a new way to use your
    Downloads: 232 This Week
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  • 6
    OSGeoLive

    OSGeoLive

    Bootable linux distro for Geospatial Applications

    OSGeoLive is a self-contained bootable DVD, USB thumb drive or Virtual Machine based on Lubuntu that allows you to try a wide variety of open source geospatial software without installing anything. It is composed entirely of free software, allowing it to be freely distributed, duplicated and passed around. It provides pre-configured applications for a range of geospatial use cases, including storage, publishing, viewing, analysis and manipulation of data. It also contains sample datasets and documentation.
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    Downloads: 213 This Week
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  • 7
    Tria Sistema Operatiu

    Tria Sistema Operatiu

    Helps you find, download & burn the best Operating System for any PC

    Tria O.S. detects hard & soft specs of the PC where you run it, you can load this info or specify it manually to let the program inform you what would be the best operating system for a specific PC, with the specified hardware, and then see the difference by adding RAM, a SSD hard drive, changing the graphics card ... etc. REQUIREMENTS: For Linux, you need GAMBAS 3.3 or later, so you will have to install the gambas3 package before installing. 90's EDITION needs 160 MB (192 MB on a virtual machine) of RAM and works with Windows 95 and Windows NT 4.0. BRONTOSAURUS EDITION needs DirectX 9.0c and .Net Framework 2.0 and runs on Windows 98, Windows 98 SE, Windows ME & Windows 2000. XP EDITION requires .Net Framework 4.0 or newer. Runs on Windows XP, Vista, Server 2003, 2003 R2, Home Server and Server 2008. STANDARD EDITION needs .Net Framework 4.8 or 4.8.1 and runs on Windows 7, Windows Server 2008 R2, and newer (any Windows released from 2009 until today).
    Downloads: 17 This Week
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  • 8
    DreamStudio by Volocian Studios
    Volocian believes first and foremost that financial status shouldn’t be a barrier to entry in multimedia content creation. Whether you want to design a product or website, record a band, remix a song, or produce a feature length movie with professional post production graphics and effects, Volocian™ wants to help, even if you’re using borrowed hardware with no previous experience. We provide affordable products and services for any budget, including cost-free solutions for education and demo purposes, while everything we do is designed with ease of use and flexibility in mind, to suit everyone from novice hobbyists to expert professionals. Wherever possible, Volocian™ relies on free, open source, and cross-platform software to prevent vendor lock-in, planned obsolescence, and software as a service licensing. While we remain pragmatic about the use of proprietary software, as we’re aware of the feature limitations of some open source solutions, free solutions are preferred.
    Downloads: 11 This Week
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  • 9
    Netdeep Secure Firewall

    Netdeep Secure Firewall

    Next Generation Open Source Firewall

    Netdeep Secure is a Linux distribution with focus on network security. Is a Next Generation Open Source Firewall, which provides virtually all perimeter security features that your company may need. It offers Web content filters, ensuring better performance of the network, allowing users to use the service efficiently and securely, providing a deep control of the use of the Web access service, blocking access to unwanted websites, Virus, Spam, Applications and intrusion attempts. Its configuration is made entirely by the web interface.
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    Downloads: 16 This Week
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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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  • 10
    Partition Logic

    Partition Logic

    Disk partitioning and data management for x86-compatible systems

    Based on the Visopsys operating system, Partition Logic is a bootable disk image featuring a disk manager program that can create, delete, erase, format, defragment, resize, copy, and move partitions and modify their attributes. It can copy entire hard disks from one to another. Other tools, such as system diagnostics, are also available within the system.
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    Downloads: 28 This Week
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  • 11
    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: 25 This Week
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  • 12
    WinDS

    WinDS

    Windows XP reimplemented on Nintendo DS

    WinDS is a Reimplementation of the OS Windows(R) XP(R) on the Platform Nintendo DS. Since i started coding Apps for the NDS, my goal was to write a program, called WinDS, which does (nearly) the same as the real appy by Microsoft. In contrast to other little NDS-Operating Systems, just like Woopsi etc. you can code your own Application in Lua for WinDS: just copy the Code onto the FAT-Disk and execute it from within WinDS! This is what makes WinDS so unique. The New Beta 0.95 is out, it features - 52 Classes that are already available within Lua - 25 different types of user interface classes - 8 different predefined dialogs which makes it the perfect GUI sandbox for DS. PS: More time without update means: next update will have even more improvements, as i am still developing ;)
    Downloads: 6 This Week
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  • 13
    Visopsys

    Visopsys

    Alternative operating system for x86 computers

    Visopsys is an alternative operating system for PC compatible computers. In development since 1997, this system is small, fast, and open source. It features a simple but functional graphical interface, pre-emptive multitasking, and virtual memory. Though it attempts to be compatible in a number of ways, Visopsys is not a clone of any other operating system. You can demo the distribution from a “live” CD/DVD or floppy disk
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    Downloads: 3 This Week
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  • 14
    Cloudium OS

    Cloudium OS

    Written in pure ASM and Exode with cloud computing in mind.

    Cloudium OS is being written in pure ASM. It's designed for speed and ease, having cloud computing in mind. It also is secure (without requiring constant user input like Windows). But, how are we going to do this? Well every os wants/says these kind of things, so to accomplish our goals we follow these simple rules: keep it simple (that's way better then these complex interfaces etc. almost nobody wants), generalize (this makes things easier and more useful without extra complexity) and be inventive (sometimes doing it the classical way just doesn't work). Note: development peace will be temporarily lowered until February the fifth. Please check out our OS and Project site!
    Downloads: 0 This Week
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  • 15
    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
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  • 16
    Galsoft Linux

    Galsoft Linux

    Galsoft Linux

    The target of Galsolft Linux project is to create a custom GNU/Linux distribution lightweight, fast,versatile and easy to use with Galician Language as default language. We promote open source and free software. O obxectivo do proxecto Galsolft é crear unha distribución GNU / Linux personalizada lixeira, rápida, versátil e doada de usar co galego como lingua por defecto. Promovemos software libre e de código aberto. We need volunters to help us in the creation of new Galsoft Linux 1.2 version. Prease enter our group: https://groups.google.com/forum/#!forum/galsoft-linux-team
    Downloads: 0 This Week
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  • 17
    Infodomestic Objects
    Infodomestic Objects - This is a set of distribution software that mutate the environment providing and advanced interaction experience. We will use a mixed POSIX/Linux/BSD based platform to develop and distribute our interaction experience improvement.
    Downloads: 0 This Week
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  • 18
    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
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  • 19
    LISE // Linux School Edition

    LISE // Linux School Edition

    Sistema Linux con software educativo. [Español, sólo 64bits]

    Linux LIVE con software preinstalado. Sólo equipos con arquitectura de 64bits Contiene: -Geogebra -KMPlot -WxMaxima -Step -Kalzium -Marble -Parley -Google Chrome (+AdBlockPlus, +WOT) -Mozilla Firefox (+AdBlockPlus, +WOT) -Inkscape -Gimp -Kazam -Kdenlive -VLC Player -Master PDF Editor -K3B -Iptux -QTQR Escritorios Cinnamon, Unity y Gnome FallBack. Contraseña de Usuario: 123
    Downloads: 0 This Week
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  • 20
    Linux Cigarra

    Linux Cigarra

    Disitribucion Debian Live para redes Wi-Fi ad-hoc

    Disitribucion Debian Live para redes Wi-Fi ad-hoc. El proyecto fue realizado como trabajo de grado de la carrera de Licenciatura en Informatica en la Universidad Nacional de La Plata, Argentina. Es una imagen booteable de Debian Linux personalizada para que sea usada en computadoras con placas inalambricas y provee una conexión Wi-Fi en modo ad-hoc preconfigurada junto a un conjunto de aplicaciones para redes. Esto implica que todas las computadoras que inicien desde este sistema podrán conectarse entre si por el aire sin necesidad de ningún Acess Point o router Wi-Fi y sin intervención del usuario en la configuraciones.
    Downloads: 0 This Week
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  • 21
    Downloads: 0 This Week
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  • 22
    OpenSPA

    OpenSPA

    OpenSPA MOD for OpenPCTV

    Downloads: 0 This Week
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  • 23
    Proyecto Senia
    Distribución GNU/Linux
    Downloads: 0 This Week
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  • 24
    ST-PBX Live is a GNU/Debian Linux distribution integrating Asterisk, freePBX and other tools to try from CD or install in HD a complete VoIP system.
    Downloads: 0 This Week
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  • 25
    SmartRouter Project
    SmartRouter Project A GNU/Linux Router, Firewall and Proxy Server
    Downloads: 0 This Week
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