Alternatives to Slackware
Compare Slackware alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Slackware in 2026. Compare features, ratings, user reviews, pricing, and more from Slackware competitors and alternatives in order to make an informed decision for your business.
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1
KernelCare Enterprise
TuxCare
Global organizations trust TuxCare for live patching their critical Linux hosts and OT devices across their hybrid multi-cloud environments. No reboot is required to deploy and enable the TuxCare KernelCare Enterprise solutions to live patch Linux kernels and critical system libraries, including OpenSSL and Glibc. In contrast, all hosts and devices maintain the current production level uptime while receiving all security updates. TuxCare automates the patching process and eliminates the need to wait weeks or months for reboot cycles to apply patches. TuxCare currently protects over 1 million workloads worldwide. Tight integrations with popular patch management and vulnerability scanners, including Qualys, Crowdstrike, and Rapid7, enable TuxCare to fit seamlessly into existing infrastructure. The TuxCare secure patch server, ePortal, allows operations in gated and air-gapped environments. Reduce risk by significantly reducing the mean time to patch vulnerabilitiesStarting Price: $3.95 per month -
2
Ubuntu
Ubuntu
Better security. More packages. Newer tools. All your open source, from cloud to edge. Secure your open source apps. Patch the full stack, from kernel to library and applications, for CVE compliance. Governments and auditors certify Ubuntu for FedRAMP, FISMA and HITECH. Rethink what’s possible with Linux and open source. Companies engage Canonical to drive down open source operating costs. Automate everything: multi-cloud operations, bare metal provisioning, edge clusters and IoT. Whether you’re a mobile app developer, an engineering manager, a music or video editor or a financial analyst with large-scale models to run — in fact, anyone in need of a powerful machine for your work — Ubuntu is the ideal platform. Ubuntu is used by thousands of development teams around the world because of its versatility, reliability, constantly updated features, and extensive developer libraries. -
3
Arch Linux
Arch Linux
Arch Linux is an independently developed, x86-64 general-purpose GNU/Linux distribution that strives to provide the latest stable versions of most software by following a rolling-release model. The default installation is a minimal base system, configured by the user to only add what is purposely required. Arch Linux defines simplicity as without unnecessary additions or modifications. It ships software as released by the original developers (upstream) with minimal distribution-specific (downstream) changes, patches not accepted by upstream are avoided, and Arch's downstream patches consist almost entirely of backported bug fixes that are obsoleted by the project's next release. Arch ships the configuration files provided by upstream with changes limited to distribution-specific issues like adjusting the system file paths. It does not add automation features such as enabling a service simply because the package was installed. -
4
Void Linux
Void Linux
Void is a general purpose operating system, based on the monolithic Linux kernel. Its package system allows you to quickly install, update and remove software; software is provided in binary packages or can be built directly from sources with the help of the XBPS source packages collection. It is available for a variety of platforms. Software packages can be built natively or cross compiled through the XBPS source packages collection. Unlike trillions of other existing distros, Void is not a modification of an existing distribution. Void's package manager and build system have been written from scratch. Void Linux supports both the musl and GNU libc implementations, patching incompatible software when necessary and working with upstream developers to improve the correctness and portability of their projects. -
5
eLxr
eLxr
Enterprise-Grade Linux for Edge-to-Cloud Deployments. Open-Source Collaborative Project, Debian-based Linux distribution tailored for edge to cloud use cases. Ensure consistent performance and stability, whether on device, on-prem, or in the cloud. eLxr provides a secure and stable distribution, with its foundation in opensource community innovation with predictable release and update cadence, fit for long lifecycles and long-term deployments. Cater to applications with stringent timing requirements, using preempt-rt kernel configurations to prioritize low-latency responses, ensuring that tasks are executed within precise time boundaries. Achieve better determinism and predictability compared to a standard Linux kernel. eLxr relies on a smaller footprint for better performance, optimized workloads, and smaller attack surface for resource usage efficiency. It provides all required features and attributes, considering best usage of system resources.Starting Price: Free -
6
DragonFly BSD
DragonFly BSD
DragonFly version 6.2.2 is released. The 6.2 series has hardware support for type-2 hypervisors with NVMM, an amdgpu driver, the experimental ability to remote-mount HAMMER2 volumes, and many other changes. DragonFly belongs to the same class of operating systems as other BSD-derived systems and Linux. It is based on the same UNIX ideals and APIs and shares ancestor code with other BSD operating systems. DragonFly provides an opportunity for the BSD base to grow in an entirely different direction from the one taken in the FreeBSD, NetBSD, and OpenBSD series. DragonFly includes many useful features that differentiate it from other operating systems in the same class. The most prominent one is HAMMER, our modern high-performance filesystem with built-in mirroring and historic access functionality. Virtual kernels provide the ability to run a full-blown kernel as a user process for the purpose of managing resources or for accelerated kernel development and debugging.Starting Price: Free -
7
openSUSE Tumbleweed
openSUSE Project
You install it once and enjoy it forever. No longer do you have to worry every six months about massive system upgrades that risk bricking your system. You get frequent updates that not only address vulnerabilities or squash bugs, but reflect latest features and developments, such as fresh kernels, fresh drivers and recent desktop environment versions. Updates are thoroughly tested against industry-grade quality standards, taking advantage of a build service other Linux distributions envy us. Not only is each new version of a package individually tested, but different clusters of versions are are tested against each other, making sure your system is internally consistent. With a single command you can update thousands of packages, rollback to last week’s snapshot, fast-forward again, and even preview upcoming releases. -
8
Minoca OS
Minoca
Minoca OS is an open-source, general purpose operating system designed specifically for feature-rich embedded devices. It's got all the high-level functionality that you've come to expect from an operating system, but offers it in a fraction of the memory footprint. The driver API separates device drivers from the kernel, enabling driver binaries to remain compatible even when the kernel is updated. Driver separation allows for automatic loading and unloading of device drivers on demand. Hardware layer API allows for a single unified kernel, even on ARM. No need to maintain a separate kernel fork. A unified power management architecture allows for smarter power management decisions, leading to better device battery life. Fewer background tasks and wake-ups from idle means machines can reach deeper idle states and save even more power. Proprietary and non-GPL source licenses are available, keeping options open for your customers and end users. -
9
fydeOS
fydeOS
FydeOS is a lightweight operating system with a Linux kernel + browser platform + container technology driver; its use is very similar to Google Chrome OS. FydeOS can run smoothly on most mainstream hardware. Hardware devices installed with FydeOS can perfectly support the latest web application standards, are compatible with Android programs and Linux environments, and can be used in network environments in China without any obstacles, providing a Google Chromebook-like experience. FydeOS is based on the second development of The Chromium Projects. We have modified and optimized its kernel, based on the most optimized browser platform, and added more localization enhancements that conform to the habits of users in China and improve user experience. Cloud technology operating system that truly meets the needs of the Internet era. After a long time of accumulation of technology, we can make FydeOS run in more types of hardware devices and provide an overall solution around FydeOS.Starting Price: $12.99 per year -
10
Neptune OS
Neptune
Neptune is a GNU/Linux Distribution for desktops based fully upon Debian Stable ('Buster'), except for a newer kernel and some drivers. It ships with a modern KDE Plasma Desktop with its main view on a good looking multimedia system which allows for getting work done. It also is a system which is flexible and very useful on usb sticks. Therefore we developed easy to use applications like USB Installer as well as a Persistent Creator that allows you to store changes to your system on your live usb stick. The Debian repository is the major base for getting updates and new software. Furthermore Neptune ships with its own software repository to update our own applications. Neptune tries to get the BeOS message of a fully supported multimedia OS to a next generation of users. Neptunes focuses on providing an elegant out of the box experience for the users. Therefore we ship a nice and simple overall look and feel as well as a whole bunch of multimedia tools, like codecs, flash player, etc. -
11
CloudLinux
CloudLinux
Stable servers reduce churn and allow you to increase density, and therefore magnify your profit. The CloudLinux OS stability features prevent resource spikes and make your servers rock-solid stable, even in the most stressful situations. CloudLinux OS protects your servers from attacks by virtualizing users’ file systems and prevent sensitive information disclosure. Our kernel-level technology prevents all known symbolic link attacks, which further enhances the security level of the servers. Secure the unsupported versions of PHP where, vulnerabilities, even if discovered, are not patched by the PHP.net community. Multiply the number of users on a more stable server with Cloudlinux OS and manage any resources limits for each customer. Troubleshooting performance problems with Detailed information on system bottlenecks, slow database queries, functions, or external calls.Starting Price: $7 per server per month -
12
LXC
Canonical
LXC is a userspace interface for the Linux kernel containment features. Through a powerful API and simple tools, it lets Linux users easily create and manage system or application containers. LXC containers are often considered as something in the middle between a chroot and a full fledged virtual machine. The goal of LXC is to create an environment as close as possible to a standard Linux installation but without the need for a separate kernel. LXC is free software, most of the code is released under the terms of the GNU LGPLv2.1+ license, some Android compatibility bits are released under a standard 2-clause BSD license and some binaries and templates are released under the GNU GPLv2 license. LXC's stable release support relies on the Linux distributions and their own commitment to pushing stable fixes and security updates. -
13
Amazon Linux 2
Amazon
Run all your cloud and enterprise applications in a security-focused and high-performance Linux environment. Amazon Linux 2 is a Linux operating system from Amazon Web Services (AWS). It provides a security-focused, stable, and high-performance execution environment to develop and run cloud applications. Amazon Linux 2 is provided at no additional charge. AWS provides ongoing security and maintenance updates for Amazon Linux 2. Amazon Linux 2 includes support for the latest Amazon EC2 instance capabilities and is tuned for enhanced performance. It includes packages that help ease integration with other AWS Services. Amazon Linux 2 offers long-term support. Developers, IT administrators, and ISVs get the predictability and stability of a Long Term Support (LTS) release, but without compromising access to the latest versions of popular software packages. -
14
openSUSE MicroOS
openSUSE
Microservice OS providing transactional (Atomic) updates upon a read-only btrfs root filesystem. Designed to host container workloads with automated administration & patching. Installing openSUSE MicroOS you get a quick, small environment for deploying containers, or any other workload that benefits from transactional updates. As rolling release distribution, the software is always up-to-date. MicroOS offers an offline image. The main difference between the offline and self-install/raw images is that the offline image has an installer. Raw and self-install allows for customization via combustion or manually in the image after it is written to the disk. There is an option for a real-time kernel. Try MicroOS in VMs running on either Xen or KVM. Using a Raspberry Pi or other system-on-chip hardware may use the preconfigured image together with the combustion functionality for the boot process.Starting Price: Free -
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Clear Linux OS
Clear Linux Project
Clear Linux OS is an open source, rolling release Linux distribution optimized for performance and security, from the Cloud to the Edge, designed for customization, and manageability. Operate without any custom configuration, for example, a generic host with an empty /etc directory. Stateless systems strictly separate the OS configuration, the per-system configuration, and the VT user-data stored on that system. Designed so that the user is able to quickly and easily manage their custom configuration vs. system configuration. Clear Linux OS optimizes across the whole stack: the platform, kernel, math libraries, middleware layers, frameworks, and runtime. Clear Linux OS has an automated tool that is constantly scanning for CVEs, which are patched accordingly. This strict separation between User and System files allows for easier manageability and simplifying customization. -
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Firejail
Firejail
Firejail is a SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf. It allows a process and all its descendants to have their own private view of the globally shared kernel resources, such as the network stack, process table, mount table. Written in C with virtually no dependencies, the software runs on any Linux computer with a 3.x kernel version or newer. The sandbox is lightweight, the overhead is low. There are no complicated configuration files to edit, no socket connections open, no daemons running in the background. All security features are implemented directly in Linux kernel and available on any Linux computer. -
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SystemRescue
SystemRescue
SystemRescue is a Linux system rescue toolkit available as a bootable medium for administrating or repairing your system and data after a crash. It aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the hard disk partitions. It comes with a lot of Linux system utilities such as GParted, fsarchiver, filesystem tools and basic tools (editors, midnight commander, network tools). It can be used for both Linux and windows computers, and on desktops as well as servers. This rescue system requires no installation as it can be booted from a CD/DVD drive or USB stick, but it can be installed on the hard disk if you wish. The kernel supports all important file systems (ext4, xfs, btrfs, vfat, ntfs), as well as network filesystems such as Samba and NFS. -
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KVM
Red Hat
KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko. Using KVM, one can run multiple virtual machines running unmodified Linux or Windows images. Each virtual machine has private virtualized hardware: a network card, disk, graphics adapter, etc. KVM is open source software. The kernel component of KVM is included in mainline Linux, as of 2.6.20. The userspace component of KVM is included in mainline QEMU, as of 1.3. -
19
KubeSphere
KubeSphere
KubeSphere is a distributed operating system for cloud-native application management, using Kubernetes as its kernel. It provides a plug-and-play architecture, allowing third-party applications to be seamlessly integrated into its ecosystem. KubeSphere is also a multi-tenant enterprise-grade open-source Kubernetes container platform with full-stack automated IT operations and streamlined DevOps workflows. It provides developer-friendly wizard web UI, helping enterprises to build out a more robust and feature-rich Kubernetes platform, which includes the most common functionalities needed for enterprise Kubernetes strategies. A CNCF-certified Kubernetes platform, 100% open-source, built and improved by the community. Can be deployed on an existing Kubernetes cluster or Linux machines, supports the online and air-gapped installation. Deliver DevOps, service mesh, observability, application management, multi-tenancy, storage, and networking management in a unified platform. -
20
BrandKernel
BrandKernel.io
BrandKernel is the AI-powered dialogue that transforms freelancers, founders, and creators from brilliant but invisible into recognized leaders. In just a few hours, you’ll uncover your authentic identity, positioning, and voice — the core of your personal brand. Through a guided, strategic conversation, BrandKernel digs deeper than templates or courses ever could. It uncovers the hidden patterns and delivers your Brand Kernel Book: your single source of truth. Inside, you’ll find your identity core, positioning map, messaging framework, and activation blueprints. The result? Clarity that drives confidence, clients who value you, and communication that resonates. Plus, you unlock AI productivity: better input means radically better output, from website copy to social media content. Stop guessing. Start leading. Build the brand only you can own.Starting Price: $297 -
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syzkaller
Google
syzkaller is an unsupervised coverage-guided kernel fuzzer. Supports FreeBSD, Fuchsia, gVisor, Linux, NetBSD, OpenBSD, and Windows. Initially, syzkaller was developed with Linux kernel fuzzing in mind, but now it's being extended to support other OS kernels as well. Once syzkaller detects a kernel crash in one of the VMs, it will automatically start the process of reproducing this crash. By default, it will use 4 VMs to reproduce the crash and then minimize the program that caused it. This may stop the fuzzing, since all of the VMs might be busy reproducing detected crashes. The process of reproducing one crash may take from a few minutes up to an hour depending on whether the crash is easily reproducible or non-reproducible at all.Starting Price: Free -
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Semantic Kernel
Microsoft
Semantic Kernel is a lightweight, open-source development kit that lets you easily build AI agents and integrate the latest AI models into your C#, Python, or Java codebase. It serves as an efficient middleware that enables rapid delivery of enterprise-grade solutions. Microsoft and other Fortune 500 companies are already leveraging Semantic Kernel because it’s flexible, modular, and observable. Backed with security-enhancing capabilities like telemetry support, hooks, and filters you’ll feel confident you’re delivering responsible AI solutions at scale. Version 1.0+ support across C#, Python, and Java means it’s reliable, and committed to nonbreaking changes. Any existing chat-based APIs are easily expanded to support additional modalities like voice and video. Semantic Kernel was designed to be future-proof, easily connecting your code to the latest AI models evolving with the technology as it advances.Starting Price: Free -
23
Glary Disk Cleaner
Glarysoft
Glary Disk Cleaner was designed to be as simple as possible in use. Even a novice can perform it by just several clicks. Using a professional rapid scanning kernel, Glary Disk Cleaner can very quickly scan all the junk files on your disk. You can find and remove the junk of Windows and applications, browsing traces, and it doesn't remove any files necessary for you. Intuitive and easy to use interface. Support ignore list, exclude files you don't want to delete. Professional rapid scanning kernel. Support custom cleaning up temporary files. Clean up history at a glance. Protect your privacy, optimize system performance, and release considerable disk space. In order to better serve customers, we provide many custom options to allow users to clean up temporary files types that not included in the program. Support ignore list, allowing users to exclude some files those they do not want to be deleted. -
24
Mbed OS
Arm
Arm Mbed OS is a free, open-source IoT operating system that includes all the necessary features to develop IoT products. The OS includes everything you need to develop smart, connected products on Arm Cortex-M based hardware, including machine learning capabilities, security, connectivity stacks, an RTOS kernel and drivers for sensors and I/O devices. Arm Mbed OS is designed for the Internet of Things. It is integrated with connectivity, machine learning, networking, and security stacks and is supported with software libraries, development hardware, tutorials and examples. From hardware to the cloud, Mbed OS supports more than 70 silicon, module, cloud, and OEM partners, optimizing your developer choice. By using the Mbed OS API, your application code can remain clean, portable, and simple, while taking advantage of security, communications and machine learning. The integrated solution reduces development cost, time, and risk. -
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Haiku OS
Haiku
Haiku is an open source operating system under constant development. Specifically targeting personal computing, Haiku is a fast, efficient, simple to use, easy to learn, and yet very powerful system for computer users of all levels. Additionally, Haiku offers something over other open source platforms which is quite unique: The project consists of a single team writing everything from the kernel, drivers, userland services, tool kit, and graphics stack to the included desktop applications and preflets. While numerous open source projects are utilized in Haiku, they are integrated seamlessly. This allows Haiku to achieve a unique level of consistency that provides many conveniences, and is truly enjoyable to use by both end-users and developers alike. The Be Operating System introduced progressive concepts and technologies that we believe represent the ideal means to simple and efficient personal computing.Starting Price: Free -
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Urbit
Urbit
Urbit is for everyone, but sometimes it is easy to get lost in this universe. Follow these links to contribute to the network through developing, operating, and exploring. It solves the hard problems of implementing a peer-to-peer network (including identity, NAT traversal, and exactly-once delivery) in the kernel so app developers can focus on business logic. The entire OS is a single pure function that provides application developers with strong guarantees: automated persistence and memory management, repeatable builds, and support for hot code reloading. The connected world anticipated by Urbit is a much friendlier one, much like the early Internet, where collegial discussion and collaboration was the norm. Problems that are unsolvable without large-scale political centralization in our current internet – data breaches, spam, fake reviews, malware-spreading, harassment – become tractable when individuals control their computing again. You have one login for everything. -
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Pica8 PICOS
Pica8
The one-of-a-kind PICOS open NOS with tightly coupled control planes gives network operators surgical, non-disruptive control of their enterprise applications, deep and dynamic traffic monitoring, and even attack mitigation, all in real time. There’s no better way to implement zero-trust networking and software-defined perimeters than PICOS. Our flagship open network operating system installs on 1G- to 100G-interface open switches from a broad array of Tier 1 manufacturers. This fully featured license offers the most comprehensive support for enterprise features on the market. It includes the Debian Linux distribution, with an unmodified kernel for maximum DevOps programmability. Enterprise Edition also includes AmpCon, an Ansible-based automation framework that couples Zero-Touch Provisioning (ZTP) with the Open Network Install Environment (ONIE) to simplify installation and operation of open network switches across the enterprise. -
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CentOS
CentOS
CentOS Linux is a community-supported distribution derived from sources freely provided to the public on Red Hat or CentOS git for Red Hat Enterprise Linux (RHEL). As such, CentOS Linux aims to be functionally compatible with RHEL. The CentOS Project mainly changes packages to remove upstream vendor branding and artwork. CentOS Linux is no-cost and free to redistribute. Each CentOS version is maintained until the equivalent RHEL version goes out of general support. A new CentOS version is made available once a new RHEL version is rebuilt - approximately every 6-12 months for minor point releases and several years for major version bumps. The length of time the rebuild takes varies from weeks for point releases to months for major version bumps. This results in a secure, low-maintenance, reliable, predictable and reproducible Linux environment. -
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HP-UX
Hewlett Packard Enterprise
Highly integrated UNIX operating system and tools that deliver the highest availability, reliability, and security on mission-critical HPE Integrity servers. Streamline your operations using a highly integrated UNIX operating system with tools that delivers the highest reliability, availability, and security on mission-critical HPE Integrity servers. HP-UX gives you a dynamic, secure, and unified environment and comes pre-integrated on mission-critical HPE Integrity servers. Meet your specific UNIX mission-critical requirements. HP-UX offers four operating environments tailored to specific needs. Holistic server security and system management that includes HPE Systems Insight Manager functionality with power management, health check, and deployment tools. It also provides full performance analysis tools for kernel processes and applications. Protect your business’s most critical applications and services to keep your business on target. -
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openSUSE Leap
openSUSE
A brand new way of building openSUSE and a new type of a hybrid Linux distribution. Leap uses source from SUSE Linux Enterprise (SLE), which gives Leap a level of stability unmatched by other Linux distributions, and combines that with community developments to give users, developers and sysadmins the best stable Linux experience available. If you’re already running openSUSE you can upgrade by booting from the DVD/USB and choosing upgrade, or carry out an ‘Online Upgrade’ in a few commands. Leap is a classic stable distribution approach, one release each year and in between security and bugfixes. This makes Leap very attractive as server operating system, but as well for Desktops since it requires little maintenance effort. openSUSE Leap is compatible with SUSE Linux Enterprise; this gives Leap a level of stability unmatched by other Linux distributions and provides users the ability to migrate to an enterprise offering. -
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NomadBSD
NomadBSD
NomadBSD is a persistent live system for USB flash drives, based on FreeBSD®. Together with automatic hardware detection and setup, it is configured to be used as a desktop system that works out of the box, but can also be used for data recovery, for educational purposes, or to test FreeBSD®'s hardware compatibility. The images for 64-bit and 32-bit computers fit on a 5GB USB flash drive. A system with a 1.2GHz CPU and 1G of RAM should be able to run NomadBSD decently. Booting is possible via BIOS and UEFI. We've decided to change the versioning scheme to the following form: FFfX-YYYYMMDD, where FF is the major two-digit FreeBSD version, f is the minor version, and X stands for ALPHA (A), BETA (B), RC, or RELEASE (R). Followed by a date. The new scheme allows us to provide images with different version of FreeBSD.Starting Price: Free -
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Fedora CoreOS
Fedora Project
Fedora CoreOS is an automatically-updating, minimal operating system for running containerized workloads securely and at scale. It is currently available on multiple platforms, with more coming soon. There are three Fedora CoreOS (FCOS) update streams available: stable, testing, and next. In general, you will want to use stable, but it is recommended to run some machines on testing and next as well and provide feedback. For automating Fedora CoreOS installations, it is expected that you will interact with stream metadata. While Fedora CoreOS does automatic in-place updates, it is generally a good practice to start provisioning new machines from the latest images. Fedora CoreOS does not have a separate install disk. Instead, every instance starts from a generic disk image which is customized on first boot via Ignition. Everything included is open source and free software, not only is it available at no cost to you, but you can share, remix, and modify. -
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AlmaLinux
AlmaLinux
An open source, community-owned and governed, forever-free enterprise Linux distribution, focused on long-term stability, providing a robust production-grade platform. AlmaLinux OS is 1:1 binary compatible with RHEL® and pre-Stream CentOS. Our GitHub organization contains source code and tools used to build AlmaLinux OS and related infrastructure. Join our vibrant Reddit community, interact with other AlmaLinux OS users, receive updates, find and provide help. Join a real time discussion with other AlmaLinux OS community members, governance team and AlmaLinux OS developers. Ask questions, get answers and contribute community support to others in AlmaLinux OS community and developers alike. As a standalone, completely free OS, AlmaLinux OS enjoys $1M in annual sponsorship from CloudLinux Inc and support from other sponsors. Ongoing development efforts are governed by the members of the community. -
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Unison File Synchronizer
Unison
Unison is a file-synchronization tool for OSX, Unix, and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other. Unison runs on both Windows and many flavors of Unix (Solaris, Linux, OS X, etc.) systems. Moreover, Unison works across platforms, allowing you to synchronize a Windows laptop with a Unix server, for example. Unlike a distributed filesystem, Unison is a user-level program: there is no need to modify the kernel or to have superuser privileges on either host. Unison works between any pair of machines connected to the internet, communicating over either a direct socket link or tunneling over an encrypted ssh connection. It is careful with network bandwidth and runs well over slow links such as PPP connections. -
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PilarOS
PilarOS
Enhanced, manageable and secure Android Mobile OS. PilarOS, AKA TRDROIDTM, is ARDIC’s industrial Android distro with extended security and manageability framework over 1800 new API’s build on AndroidTM Open Source. AFEX adds manageability to the OS. Additional layers provide device, applications, connection and data security. From kernel to cloud level for industrial grade, secure, manageable, scaleable services. It won’t let no monkey business on your device; secures connection, applications, USB ports, mics and cameras. Define the required configuration and push it to all your devices. Install/uninstall/disable/force applications on your devices remotely. Access all your devices on a single admin panel, monitor and manage them all or one by one. PilarOS is not just for smart phones, but also for any purpose smart devices, Internet of things, industrial IoT devices. -
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Mac OS X Mountain Lion
Apple
OS X Mountain Lion is the ninth version of OS X, Apple's operating system for its desktops, laptops, and servers. Mountain Lion was announced on February 16, 2012 and was released on July 25, 2012 through the Mac App Store. Mac OS X 10.8 Mountain Lion is available for older systems that are not compatible with the latest version of macOS and requires the following: OS X Snow Leopard 10.6.8, Lion 10.7, or Mountain Lion 10.8 already installed, some features require a compatible Internet service provider; fees may apply, some features require an Apple ID; terms apply. -
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Apache Mesos
Apache Software Foundation
Mesos is built using the same principles as the Linux kernel, only at a different level of abstraction. The Mesos kernel runs on every machine and provides applications (e.g., Hadoop, Spark, Kafka, Elasticsearch) with API’s for resource management and scheduling across entire datacenter and cloud environments. Native support for launching containers with Docker and AppC images.Support for running cloud native and legacy applications in the same cluster with pluggable scheduling policies. HTTP APIs for developing new distributed applications, for operating the cluster, and for monitoring. Built-in Web UI for viewing cluster state and navigating container sandboxes. -
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macOS Tahoe
Apple
macOS Tahoe is the rumored name for Apple's upcoming macOS 26, expected to be announced at WWDC 2025. According to Bloomberg's Mark Gurman, the name "Tahoe" is inspired by California's Lake Tahoe, reflecting the region's natural beauty . This naming convention continues Apple's trend of using California landmarks for macOS versions, following names like Yosemite, Sierra, and Sequoia. The anticipated update is expected to bring a significant redesign to the macOS interface, possibly featuring more translucent windows and a glass-like aesthetic. This would mark the first major visual overhaul since macOS Big Sur in 2020. While specific features are not confirmed, the update is expected to enhance user experience and align with Apple's design philosophy. macOS Tahoe is expected to be released in the fall of 2025.Starting Price: Free -
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Nucleus RTOS
Siemens Digital Industries Software
Nucleus® RTOS enables system developers to address the complex requirements demanded by today’s advanced embedded designs. Nucleus brings together kernel-rich functionality and tooling features ideal for applications where a scalable footprint, connectivity, security, power management, and deterministic performance are essential. Nucleus RTOS is a proven, reliable, and fully optimized RTOS. Nucleus has been successfully deployed in highly demanding markets with rigorous safety and security requirements such as industrial systems, medical devices, airborne systems, automotive and more. Stable deterministic kernel with a small memory footprint. A lightweight process model for optimized memory partitioning. Dynamically load and unload processes for greater modularity of applications. -
40
TatukGIS
TatukGIS
TatukGIS offers a comprehensive GIS software development kit (Developer Kernel) and desktop applications for mapping, data editing, and geospatial analysis. The Developer Kernel supports multiple platforms including Windows, Linux, macOS, iOS, Android, and Web, and provides extensive APIs for languages such as .NET, Delphi, Java, Python, and ActiveX. TatukGIS Editor is a powerful yet user-friendly desktop GIS tool featuring advanced geoprocessing and built-in Python scripting for automation. The platform supports all major GIS data formats and web services for seamless data integration. With royalty-free licensing, developers can distribute applications without per-user fees. Trusted by industry leaders, TatukGIS has been a reliable GIS technology partner since 2000.Starting Price: $3,890, incl. 1-year support -
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refbase
refbase
refbase can import and export references in various formats (including BibTeX, Endnote, RIS, PubMed, ISI Web of Science, CSA Illumina, RefWorks, MODS XML, OpenOffice, and MS Word). It can make formatted lists of citations in HTML, RTF, PDF, or LaTeX, and offers powerful searching, and RSS support. Its OpenSearch and SRU/W web services, and support for unAPI & COinS metadata allow for easy access by clients and search engines. Please see our Feature highlights page for a more detailed description of features. An overview of the major feature additions in refbase-0.9.5 is given here. You can download the stable release version of refbase from the SourceForge download page. Please see the instructions on how to install or update refbase. The latest source code can be checked out and installed from the refbase Subversion repository. We invite you to test-drive refbase at the refbase Demo Database (latest stable release version) or the refbase Beta Database (latest development version). -
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EuroLinux Desktop
EuroLinux
EuroLinux Desktop is a breakthrough in the operating system market. It combines the aesthetic and functionality of Windows® and macOS® with the reliability and security of the Enterprise Linux distribution. EuroLinux Desktop introduces several changes to the Linux user interface, making it easy to use for those accustomed to Microsoft® or Apple® software. At the same time, it provides the highest security and stability, because it is built on the source code of Red Hat® Enterprise Linux® 9, commonly used in the most demanding environments such as banks, telecommunications or public sectors. EuroLinux Desktop is designed for individuals and organizations that use Windows® or macOS® daily and are looking for a stable operating system that maintains the aesthetic of the Microsoft® and Apple® solutions and is covered by long-term technical support. EuroLinux Desktop is the answer to the needs of public administration, the financial sector, educational institutions, and normal users.Starting Price: Free -
43
Kernel
Kernel Knowledge Management
Kernel is a Software-as-a-Service (SaaS) application that lets you build your second brain one atomic note at a time. It is like your personal knowledge companion, designed for modern thinkers, learners, and doers. With Kernel you can effortlessly capture valuable insights from any source—books, podcasts, videos, and beyond—as clear atomic notes. Kernel then ensures your notes are linked by common attributes such as sources, folders and tags, enabling quick discovery of related knowledge, deepening insights and enhancing creativity. Its straightforward design and support for methods like PARA (Projects, Areas, Resources and Archives) make Kernel uniquely suited to people who want to enhance their learning and cultivate their own personal knowledge base.Starting Price: $10 per user, per month -
44
DuinOS
DuinOS
DuinOS is a small multithreading real time operating system (RTOS), based on the FreeRTOS kernel, for Arduino compatible boards. The Project is being recreated with a new approach, now with FreeRTOS 10 and soon with ARM Cortex-M, if you want to be Beta Tester, contact us through the project’s website. -
45
Parrot OS
Parrot Security
Parrot is a worldwide community of developers and security specialists that work together to build a shared framework of tools to make their job easier, standardized and more reliable and secure. Parrot OS, the flagship product of Parrot Security is a GNU/Linux distribution based on Debian and designed with Security and Privacy in mind. It includes a full portable laboratory for all kinds of cyber security operations, from pentesting to digital forensics and reverse engineering, but it also includes everything needed to develop your own software or keep your data secure. Always updated, frequently released with many hardening and sandboxing options available. Everything is under your complete control. Feel free to get the system, share with anyone, read the source code and change it as you want! this system is made to respect your freedom, and it ever will be. -
46
Embedded Linux
Canonical
Developers are much more productive on Ubuntu than handcrafted embedded Linux. Sharing a platform shares the cost. Licensing is cheaper, updates more tested and maintenance shared. Familiar and widely used Ubuntu means easy CI/CD, better tools, faster updates and better kernels. Linux is not a differentiator. Use pre-enabled boards and focus on software unique to your story. Managing a familiar environment and platform is easier and cheaper than a specialist OS. Naturally. More Linux developers choose Ubuntu, so the talent pool is deeper and broader. Tap the biggest talent pool. Ubuntu is ahead of the pack by every measure. Productivity starts with reuse. Accelerate developers with the world’s largest package selection. -
47
NetBSD
NetBSD
NetBSD is a free, fast, secure, and highly portable Unix-like Open Source operating system. It is available for a wide range of platforms, from large-scale servers and powerful desktop systems to handheld and embedded devices. NetBSD was originally released in 1993. Over time, its code has found its way into many surprising environments, on the basis of a long history of quality, cleanliness, and stability. The NetBSD code was originally derived from 4.4BSD Lite2 from the University of California, Berkeley. NetBSD is an entirely free and open-source UNIX-like operating system developed by an international community. It isn't a "distribution" or variant but has evolved over several decades to be a complete and unique operating system in the BSD family. NetBSD users enjoy a simple, well-documented, and fully integrated UNIX-like system that feels minimal, and in many ways traditional, while including many modern and interesting features, and support for recent hardware.Starting Price: Free -
48
Edera
Edera
Introducing secure-by-design AI and Kubernetes no matter where you run your infrastructure. Eliminate container escapes and put a security boundary around Kubernetes workloads. Simplify running AI/ML workloads through enhanced GPU device virtualization, driver isolation, and vGPUs. Edera Krata begins a new paradigm of isolation technology, ushering in a new era of security. Edera brings a new era of AI & GPU security and performance, while also integrating seamlessly with Kubernetes. Each container receives its own Linux kernel, eliminating a shared kernel state between containers. Which means goodbye container escapes, costly security tool layering, and long days doom scrolling logs. Run Edera Protect with just a couple lines of YAML and you’re off to the races. It’s written in Rust for enhanced memory safety and has no performance impact. A secure-by-design Kubernetes solution that stops attackers in their tracks. -
49
LibreELEC
LibreELEC
LibreELEC is a lightweight Linux distribution purpose-built for Kodi on current and popular media center hardware. We believe passionately in the long-term value of collaboration and upstreaming code instead of hoarding patches, and we participate actively with other Open Source projects and the ecosystem of regular and drive-by contributors that surround us. LibreELEC remains Kodi oriented but we too have been forked to provide the stable JeOS base for Plex Embedded, Lakka, and a number of single-purpose IoT and maker projects. The software output of LibreELEC will look familiar to OpenELEC users, on the surface we both run Kodi with much common code, but the projects differ on their core values. LibreELEC is governed by a project board elected from active team members to set project goals, priorities, and take executive decisions. The board ensures project tasks are distributed among volunteers. LibreELEC is free and Open Source software. -
50
macOS Ventura
Apple
macOS Ventura is the latest major release of Apple's operating system for Mac computers. It was announced at WWDC 2022 on June 6, 2022, and was released to the public on October 24, 2022. macOS Ventura includes a number of new features and improvements, including: Stage Manager: A new way to organize your windows so you can focus on the task at hand. Continuity Camera: Use your iPhone as a webcam for your Mac, with features like Center Stage and Portrait Mode. Live Text: Automatically recognize text in images and videos, so you can copy, paste, translate, and more. Mail: New features for organizing your inbox, scheduling emails, and finding information more easily. Safari: New features for browsing the web, including Tab Groups, Passkeys, and Live Text. Games: New features for gaming on macOS, including Metal 3 and SharePlay. macOS Ventura is a significant update to macOS, and it includes a number of new features that are sure to make your Mac experience more productive.Starting Price: Free
