Best Free Operating Systems of 2024

Use the comparison tool below to compare the top Free Operating Systems on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    CacheGuard Reviews

    CacheGuard

    CacheGuard Technologies

    $9.99 per month
    2 Ratings
    CacheGuard product line is based on a core product called CacheGuard-OS. Once installed on a bare metal or virtual machine, CacheGuard-OS transforms that machine into a powerful network appliance . The resulted appliance can then be implemented as different types of Gateways to Secure & Optimize your network. See below a brief description of all CacheGuard appliances. - Web Gateway: gain control over the Web traffic in your organization & filter unwanted Web traffic in your organization. - UTM (Unified Threat Management) : secure your networks against all kind of threats coming from the internet with a Firewall, an Antivirus at the Gateway, a VPN server and a Filtering proxy. - WAF (Web Application Firewall): block malicious requests on your critical Web applications and protect your business. The WAF integrates OWASP rules with the possibility to design your own custom rules. In addition, an IP reputation based filtering allows you to block IPs listed in real time blacklists. - WAN Optimizer : prioritize your critical network traffic, save your precious bandwidth and get High Availability for your internet access through multiple ISP.
  • 2
    Qubes OS Reviews
    Qubes OS is an open-source, free, security-oriented operating platform for single-user desktop computing. Qubes OS uses Xen-based virtualization for the creation and management a set of isolated compartments known as qubes. These qubes are virtual machines (VMs) that are used to implement a set of isolated applications for professional or personal projects. They also serve to manage the firewall and network stack. Qubes provides your computer with the security of Xen hypervisor, which is used by many major hosting companies to isolate websites from each other. You can't decide which Linux distribution to use? You still need one Windows program for work? Qubes doesn't limit you to one OS. Qubes integrates Whonix, making anonymous browsing over the Tor network safe and simple.
  • 3
    PixelOS Reviews
    PixelOS is a ROM based on AOSP, with all the Pixel goodies and Google apps. We aim to provide a similar experience to Google Pixel phones, with numerous performance improvements and a small number of useful extra features.
  • 4
    Artix Linux Reviews
    Artix Linux is a rolling release distribution that is based on Arch Linux. Because PID1 must be simple and secure, it uses real init systems. Any init system (openrc. runit. s6, suite66. or dinit) can be installed from any ISO. Artix can be installed via the console or via the GUI installer. Artix currently offers three types of installation media: base, graphical, or community. A community edition is recommended if you don't know much about Linux. You can perform the base installation from any ISO. This is useful for people who have difficulty getting their wireless network cards working or need an active graphical environment to install them. You can also install an init system that is different from the one installed. Base ISOs can be customized to install the system in a TTY. This is for experienced users only.
  • 5
    EndeavourOS Reviews
    A vibrant, friendly community that is terminal-focused. This distro's heartbeat is a vibrant, friendly community that will guide you on your journey. Our distro is a light-filled, evolving community. You can read and download the latest release page. The EndeavourOS knowledgebase, where you can find our video tutorials and wiki articles, is available to assist you in your exploration of building your personal system. You can create your own destiny through an amazing journey. You might like to take on an adventure and roll up your sleeves. EndeavourOS is not a route to a destination in computing. It is about the journey towards your destination. You'll also meet new and friendly people along the way. Or, to be more precise, your new Endeavour.
  • 6
    CloudReady Reviews

    CloudReady

    Neverware

    $15 per device per year
    1 Rating
    Transform your organization's computers to make them secure, manageable, and fast. CloudReady gives your organization all the power of the internet without the risk or weight of traditional operating systems. CloudReady is an OS that's designed for the future. CloudReady is used by schools, government agencies, non-profits, and companies around the globe to streamline and protect their devices when they access web apps and VDI. CloudReady is built on Google's Chromium OS which is the same open-source architecture that Chrome OS. CloudReady is available for computers new and old. It provides speed, simplicity, security, and reliability without any hardware limitations.
  • 7
    Sailfish OS Reviews

    Sailfish OS

    Jolla

    €29.90 one-time payment
    1 Rating
    Sailfish OS, a European alternative to dominant mobile operating systems is the only mobile OS that offers a unique licensing model for local implementations. Sailfish OS has been on the market since 2013, and is now in its fourth generation. It offers a secure platform to trust mobile solutions. Sailfish OS can run Android™, as well as other apps, with our dedicated App Support solution. Sailfish OS is a mobile operating system that is secure and can be used on smartphones and tablets. It can also be easily adapted to various embedded devices and use cases. Sailfish 4, the fourth generation, offers a wide range of new enablers that can be used to support different ecosystem projects. Sailfish OS offers a variety of security functions that are specifically designed for government and corporate environments. Sailfish 4 users data is encrypted and apps protected by Firejail Sandboxing
  • 8
    NomadBSD Reviews
    NomadBSD, a persistent living system for USB flash drives that is based on FreeBSD®, is called NomadBSD. It is equipped with hardware detection and setup. It can be used as a desktop system, but it can also be used to recover data, test FreeBSD®, or for educational purposes. A 5GB USB flash drive can hold the images for both 32-bit and 64-bit computers. NomadBSD should run well on a system with a 1.2GHz CPU, 1G RAM, and a decent processor. BIOS and UEFI are both available for booting. We have changed the versioning scheme to FFfX YYYYMMDD. FF is the major two digit FreeBSD version and f is the minor one. X stands for ALPHA, BETA, RC, RC or RELEASE (R). The date is followed by the number. We can now provide images with different versions of FreeBSD using the new scheme.
  • 9
    Altima Linux Reviews
    Open Source Operating System tweaked and customized the way we want it with a selection the best open-source software applications. A worthy alternative to Windows and MacOS. Based on the rock-solid Debian Linux. This is a desktop environment that includes all the free software needed for general computing. Installation guides are available for other specialist applications. Install free downloads on old computers to bring them back into life. What you thought to be an old machine is most likely just bloated. Libre Office, PhotoShack InkScape Sublime Text QEMU Nginx Audacity VLC Media Player Epiphany Remmina are some of the major applications included. VirtualBox is suggested as a free download. WINE. Altima Linux's best feature is its clever combination of Windows look and feel and Mac-like desktop environment. This allows both new and experienced users to enjoy a clean, easy to learn and follow desktop environment. We hope you enjoy using and testing Altima Linux.
  • 10
    Haiku OS Reviews
    Haiku is an open-source operating system that is constantly being developed. Haiku is an open source operating system that is specifically designed for personal computing. It is fast, efficient and easy to use. Haiku is also unique in that it is a single project, which includes the kernel, drivers and userland services. The tool kit and graphics stack are all written by one team. Haiku integrates many open source projects. This allows Haiku achieve a unique level consistency that provides many conveniences and is truly enjoyable for both developers and end-users. We believe that the Be Operating System introduced innovative concepts and technologies that are ideal for personal computing.
  • 11
    TrueNAS Reviews
    Top Pick
    TrueNAS is the world's most deployed storage software. TrueNAS is a universal data platform that allows users to easily adopt a modern, open source approach to storing and protecting their growing data. TrueNAS is open source and harnesses the power of the legendary ZFS file system to provide unified storage (File, Block Object, and Apps) with the reliability and performance demanded by virtualization, backup, and many other data-heavy workloads.
  • 12
    crDroid Reviews
    Improve the performance and reliability of your Android device. With crDroid, you can customize your phone without compromising performance or security. Customize the icons, effects and number QS rows and column. You can choose between gesture navigation or the old-school nav buttons, and you can also customize what your hardware buttons will do. Impress your friends from the start by making them impressed with your lockscreen. Choose your color and dark mode.
  • 13
    Zorin OS Reviews
    Zorin OS was designed to be simple so that you don't have to know anything. The Zorin Appearance app allows you to change your desktop to match the environment you are used to, regardless of whether you're using Windows, macOS, Linux, or both. Zorin OS is built on an Ubuntu and Linux foundation. It runs on the same Open Source software as NASA, the U.S. Department of Defense and many other organizations. Zorin OS is immune to viruses thanks to Linux's advanced security features. Software updates and security patches are available for many years. Zorin OS runs lightning fast and doesn’t slow down when it comes to updates. The Lite edition runs fast on computers older than 15 years. This allows you to breathe new life into your old PCs. Zorin OS includes powerful apps right out of the box, including a complete Microsoft Office-compatible office suite and professional photo editing software. There are many more apps and games available at the Software store and Steam.
  • 14
    ChromeOS Flex Reviews
    ChromeOS for Macs and PCs is fast, secure, and cloud-first. ChromeOS Flex is a cost-effective and sustainable way to upgrade devices you already have. It's easy for you to deploy it across your fleet. Or, simply test it to see what a cloud first OS has to offer. ChromeOS Flex can be installed on your Macs and PCs to ensure that they are secure, fast, stable, and up-to-date in the background. It can also be managed from the cloud. Devices are able to boot quickly, do not slow down, and can update in the background. This reduces device downtime. Access VDI and web applications quickly and easily with a clutter-free, intuitive, and reliable experience. You can deploy ChromeOS Flex across your fleet using USB or network deployment. Users' settings and policies will sync to the device almost immediately. Remotely manage updates and set device policies using the Google Admin console. Antivirus software is unnecessary if blocked executables are disabled and sandboxing technology is enabled.
  • 15
    NethServer Reviews

    NethServer

    NethServer

    €48 per year
    Analyzes all web traffic, blocks selected websites via HTTP or HTTPS using Squid proxy. Integrated with ClamAV antivirus. Multi-domain web server with ready-to-use LAMP stack. Virtual hosting allows you to host multiple domains on one server. NextCloud allows you to access your files from anywhere, whether you're on the internet, your computer, or your mobile device. Mattermost allows you to create a private Slack-alternative. Secure team collaboration is possible with this open-source messaging platform. Cockpit is a modern web interface that simplifies administration tasks. It's easy to install and very fast. CentOS/RHEL is a popular server distribution that is trusted by routine security updates and has rock-solid stability.
  • 16
    NetBSD Reviews
    NetBSD is an open source Unix-like Open Source operating platform that is free, fast, secure and portable. It's available for a wide variety of platforms, including large-scale servers and powerful desktop systems as well as handheld and embedded devices. NetBSD was first released in 1993. Its code has been used in many different environments over the years, thanks to its long history of quality and stability. Original source code for NetBSD was 4.4BSDLite2 from University of California, Berkeley. NetBSD is an open-source, free and open-source UNIX operating system that has been developed by an international group. It is not a "distribution" of a variant, but has been developed over many decades to be an entirely unique operating system within the BSD family. NetBSD users have a simple, well-documented and fully integrated UNIX-like operating system that feels traditional and yet includes many new and interesting features and support for the latest hardware.
  • 17
    OpenBSD Reviews
    OpenBSD is entirely developed by volunteers. OpenBSD Foundation contributes to funding the project's development environment, and developer events. OpenBSD will continue to be a free and vibrant operating system thanks to your contributions. OpenBSD has embedded cryptography in many places within the operating system. We demand that cryptographic software used by us be freely available and licensed. We don't use cryptography that is protected by nasty patents. We also require that the software be from countries with export licenses. This is because we don't want to break any country's laws. Keep it as political-free as possible. Solutions should be based on technical merit.
  • 18
    VyOS Reviews

    VyOS

    VyOS Networks

    $1000
    Open source software and a universal router are key to democratizing the way we access networks. VyOS' vision is to revolutionize how we access networks, so that everyone can build the solutions they have always wanted, without limitations, restrictions, or prohibitive prices. We believe that internet access is just as important to human development as food, water, air, and healthcare. VyOS was founded by engineers for engineers. It is an open-source software company that makes it possible to access networks without restrictions or prohibitive fees. Through our open-source software and virtual platforms, we do this as VyOS. Stateful firewalls, zone based firewall, all types source and destination NAT (one-to-one, one-to many, many to many). For auditing, creating customized images and contributing, everyone has access to the entire codebase and build toolchain.
  • 19
    CloudLinux Reviews

    CloudLinux

    CloudLinux

    $7 per server per month
    Stable servers reduce churn, increase density and magnify profit. CloudLinux OS stability features keep your servers stable in stressful situations. CloudLinux OS protects servers from attacks by virtualizing users' files and preventing sensitive information disclosure. Our kernel-level technology prevents all known symbol link attacks, which further enhances security. Unsupported PHP versions can be secured. Even if vulnerabilities are discovered, they are not fixed by the PHP.net community. Multiply the number users on a stable server with Cloudlinux OS to manage each customer's resources limits. Troubleshooting performance issues with detailed information about system bottlenecks, slow queries to the database, functions, and external calls.
  • 20
    FreeBSD Reviews
    FreeBSD has many advanced networking, security, and compatibility features that are not available in commercial operating systems. FreeBSD is an ideal Internet and Intranet server. It can provide reliable network services even under heavy loads. It also uses memory efficiently to maintain high response times for thousands concurrent user processes. FreeBSD provides advanced network operating system features for embedded platforms and appliances, including Intel-based appliances and ARM, PowerPC and MIPS hardware platforms. Vendors around the globe rely on FreeBSD for their embedded products, which includes mail and web appliances, routers, time servers and wireless access points. They can also decide how many local changes they want back through the Berkeley open-source license.
  • 21
    OS108 Reviews
    OS108 is a fast, secure, and open-source desktop operating system that was built on NetBSD. 1 and 0 are binary bits, represented as 8 bits makes a byte. Also, the distance between Earth and the Sun is approximately 108 times its diameter. This is why the name. We are always looking for contributors to the project. Even if you are not a programmer, you can still contribute to the project by creating how-to guides, user-centric documentation, and support forums.
  • 22
    Guix Reviews
    Guix is an advanced distribution for the GNU operating system, which was developed by the GNU Project. It respects the freedom of computer users. Guix supports roll-backs and transactional upgrades, unprivileged package management, as well as other features. Guix can be used as a standalone distribution and supports declarative system configuration to create transparent and reproducible operating environments. Guile Scheme APIs are available, including high-level embedded domain specific languages (EDSLs), to create packages and whole-system configurations. Guix includes thousands of packages that include software, system tools, documentation and fonts. These can be installed with the GNU Guix Package Manager.
  • 23
    PLD Linux Reviews
    PLD is a RPM-based Linux distribution that is free and open source. It was created in 1998 for advanced users and administrators. Our users have the ability to access multiple architectures simultaneously and use RPMs in a non-conservative way. This allows them to maintain a consistent environment across all architectures.
  • 24
    Salix Reviews
    Salix is a GNU/Linux distribution that is based on Slackware. It is simple, fast, and easy to use with stability as its primary goal. Salix is fully backwards compatible to Slackware so Slackware users have access to Salix repositories that they can use for "extra" quality software for their favorite distribution. Salix is small and light, but requires no care. Everything in the iso has been installed. This includes a complete desktop environment as well as a selection of applications that match the environment. It follows the "one app per task" principle. The console system must have the minimum requirements to be able to start. It does not include a graphical environment. This is great if you are an experienced user who wants to customize your installation for a specific purpose such as a file server, web server, etc.
  • 25
    Slint Reviews
    Slint is stable. Accessibility software is updated regularly, but other software may be updated on an individual basis. Slint can work in both graphical and console modes. You can switch between them without having to restart. You can even launch multiple graphical environments and switch among them. The Slint dashboard provides direct access to the main tools, useful information, and links. In text mode, the installation program is accessible to blind people who use a screen reader or Braille monitor. It proceeds by asking questions and answering with online help and integrated documentation. The btrfs file structure is set up with subvolumes and not separate partitions. It allows you to divide by 2 the media space, to take snapshots, and is well-suited to SSD, NVMe, and USB sticks.
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