Alternatives to Kali Linux
Compare Kali Linux alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Kali Linux in 2026. Compare features, ratings, user reviews, pricing, and more from Kali Linux competitors and alternatives in order to make an informed decision for your business.
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Astra Pentest
Astra Security
Astra’s Pentest is a comprehensive penetration testing solution with an intelligent automated vulnerability scanner coupled with in-depth manual pentesting. On top of 10000+ tests including security checks for all CVEs mentioned in the OWASP top 10, and SANS 25, the automated scanner also conducts all tests required to comply with ISO 27001, HIPAA, SOC2, and GDPR. Astra offers an interactive pentest dashboard that the user can use to visualize vulnerability analyses, assign vulnerabilities to team members, and collaborate with security experts. And if the users don’t want to get back to the dashboard every time they want to use the scanner or assign a vulnerability to a team member, they can simply use the integrations with CI/CD platforms, Slack, and Jira. -
2
Rocky Linux
Ctrl IQ, Inc.
CIQ empowers people to do amazing things by providing innovative and stable software infrastructure solutions for all computing needs. From the base operating system, through containers, orchestration, provisioning, computing, and cloud applications, CIQ works with every part of the technology stack to drive solutions for customers and communities with stable, scalable, secure production environments. CIQ is the founding support and services partner of Rocky Linux, and the creator of the next generation federated computing stack. - Rocky Linux, open, Secure Enterprise Linux - Apptainer, application Containers for High Performance Computing - Warewulf, cluster Management and Operating System Provisioning - HPC2.0, the Next Generation of High Performance Computing, a Cloud Native Federated Computing Platform - Traditional HPC, turnkey computing stack for traditional HPC -
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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. -
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Wireshark
Wireshark
Wireshark is the world’s foremost and widely-used network protocol analyzer. It lets you see what’s happening on your network at a microscopic level and is the de facto (and often de jure) standard across many commercial and non-profit enterprises, government agencies, and educational institutions. Wireshark development thrives thanks to the volunteer contributions of networking experts around the globe and is the continuation of a project started by Gerald Combs in 1998. Wireshark® is a network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. It has a rich and powerful feature set and is world’s most popular tool of its kind. It runs on most computing platforms including Windows, macOS, Linux, and UNIX. Network professionals, security experts, developers, and educators around the world use it regularly. It is freely available as open source, and is released under the GNU General Public License version 2. -
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Qubes OS
Qubes OS
Qubes OS is a free and open-source, security-oriented operating system for single-user desktop computing. Qubes OS leverages Xen-based virtualization to allow for the creation and management of isolated compartments called qubes. These qubes, which are implemented as virtual machines (VMs), have specific Purposes with a predefined set of one or many isolated applications, for personal or professional projects, to manage the network stack, the firewall, or to fulfill other user-defined purposes. Qubes brings to your personal computer the security of the Xen hypervisor, the same software relied on by many major hosting providers to isolate websites and services from each other. Can't decide which Linux distribution you prefer? Still, need that one Windows program for work? With Qubes, you're not limited to just one OS. With Whonix integrated into Qubes, using the Internet anonymously over the Tor network is safe and easy.Starting Price: Free -
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BlackArch Linux
BlackArch Linux
BlackArch Linux is an Arch Linux-based penetration testing distribution for penetration testers and security researchers. You can install tools individually or in groups. BlackArch Linux is compatible with existing Arch installs. The BlackArch Full ISO contains multiple window managers. The BlackArch Slim ISO features XFCE Desktop Enviroment. The full ISO contains a complete, functional BlackArch Linux system with all the available tools in the repo at build time. The slim ISO contains a functional BlackArch Linux system with a selected set of common/well-known tools and system utilities for pentesting. The netinstall ISO is a lightweight image for bootstrapping machines with a minimal set of packages. BlackArch Linux is compatible with existing/normal Arch installations. It acts as an unofficial user repository. You can install BlackArch Linux using the Slim medium which features GUI installer. -
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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. -
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Puppy Linux
Puppy Linux
Puppy Linux is a unique family of Linux distributions meant for the home-user computers. Ready to use, all tools for common daily computing usage already included. Ease of use, grandpa-friendly certified. Relatively small size, 300 MB or less. Fast and versatile. Customizable within minutes, remasters. Different flavours, optimized to support older computers, newer computers. Variety, hundreds of derivatives (“puplets”), one of which will surely meet your needs. Puppy Linux is not a single Linux distribution like Debian. Puppy Linux is also not a Linux distribution with multiple flavours, like Ubuntu (with its variants of Ubuntu, Kubuntu, Xubuntu, etc) though it also comes in flavours. Puppy Linux is a collection of multiple Linux distributions, built on the same shared principles, built using the same set of tools, built on top of a unique set of puppy specific applications and configurations and generally speaking provide consistent behaviours and features. -
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SparkyLinux
SparkyLinux
SparkyLinux is a GNU/Linux distribution created on the top of Debian GNU/Linux operating system. Sparky is fast, lightweight and fully customizable OS which offers a few versions for different users and different tasks, such as fully featured OS with a lightweight desktop environment, which works out of the box and contain a selection of pre installed common use software for home users. MinimalGUI with Openbox window manager preinstalled only with basic software installed for users whose want to configure their OS/desktop as they want, on the top of Debian, plus any desktop environment or window manager they like. MinimalCLI with no X server, for advanced users whose want to build and configure their desktops in own way. Sparky supports about 20 desktop environments and window managers giving you freedom of choice, having in mind that your computer is made for working, having fun, entertainment, keeping in touch with friends, and many, many other things. -
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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 -
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BunsenLabs Linux
BunsenLabs
BunsenLabs Linux Lithium is a distribution offering a light-weight and easily customizable Openbox desktop. The project is a community continuation of CrunchBang Linux. The current release is derived from Debian 10. The distribution consists of configuration and resource packages installed on top of Debian. There are no changes to the way the Debian base system is administrated. Pre-configured Openbox window manager with tint2 panel, conky system monitor and jgmenu, a feature-rich desktop menu. Assortment of harmonising GTK2/3 themes, wallpapers and conky configurations. Various configuration and application utilities to maintain this system. Additional desktop-, multimedia- and hardware-related packages come pre-installed to offer a better “out-of-the-box” experience. There is no limit to customization. We offer combined live-CD and installation media for the Debian amd64 (x86-64) architectures and i386 (i686) architectures. -
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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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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. -
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Tails
Tails
Tails is a portable operating system that protects against surveillance and censorship. Tails uses the Tor network to protect your privacy online and help you avoid censorship. Enjoy the Internet like it should be. Shut down the computer and start on your Tails USB stick instead of starting on Windows, macOS, or Linux. Tails leaves no trace on the computer when shut down. Tails includes a selection of applications to work on sensitive documents and communicate securely. Everything in Tails is ready-to-use and has safe defaults. You can download Tails for free and independent security researchers can verify our work. Tails is based on Debian GNU/Linux. Activists use Tails to hide their identities, avoid censorship, and communicate securely. Journalists and their sources use Tails to publish sensitive information and access the Internet from unsafe places. Domestic violence survivors use Tails to escape surveillance at home. -
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Linspire
PC/OpenSystems LLC
Linspire is a 64 bit Linux based OS, that is geared towards the business, education and government worker. It has all the applications business users will need for work, research and deployment among very high end desktop systems. With Linspire you can host the entire line of legacy applications that may still be in use in your environment as well as facilities for deploying web apps. Linspire is certified in many states to run government intranet and web based applications. Linspire is the ONLY Debian and Ubuntu based system that is certified by Oracle and IBM to host and deploy their respective cloud technologies. Linspire is deployed by 4 out of 5 US military branches and is in use by the NOAA and the National Weather Service.Starting Price: $39.99 -
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PentestBox
PentestBox
PentestBox is an Opensource PreConfigured Portable Penetration Testing Environment for the Windows Operating System. PentestBox was developed to provide the best penetration testing environment for Windows users. By default PentestBox runs like a normal user, no administrative permission is required to launch it. To make PentestBox more awesome we have also included HTTPie, HTTPie is a command line HTTP client. Its goal is to make CLI interaction with web services as human-friendly as possible. It provides a simple http command that allows for sending arbitrary HTTP requests using a simple and natural syntax, and displays colorized output. HTTPie can be used for testing, debugging, and generally interacting with HTTP servers. PentestBox also contains a modified version of Mozilla Firefox with all the security addons pre installed in it. -
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Securily
Securily
Certified human pen-testers work alongside generative AI to bring you the best pentest experience. Ensure robust security and customer trust with our comprehensive and affordable pricing. Don't wait weeks to get your pentest started, only to get automated scan reports. Securily start your pentest right away with in-house certified pen-testers. Our AI analyzes your application and infrastructure to scope your pentest. A certified penetration tester is promptly assigned and scheduled to initiate your pentest. You don't deploy and forget, that's why we continuously monitor your posture. Your dedicated cyber success manager guides your team on remediation. As soon as you deploy a new version, your pentest is yesterday's news. Falling out of compliance with regulations, and inadequate documentation. Data leakage, improper encryption, and access control issues. Data is king, make sure you are protecting your customer's data using best practices.Starting Price: $500 per month -
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SUSE Linux Micro
SUSE
SUSE Linux Micro is a lightweight, container-optimized Linux operating system designed for edge computing and microservices environments. It offers a small footprint with security and performance optimized for deploying containerized applications. The platform enables fast, scalable, and cost-efficient cloud-native development, especially in resource-constrained environments. With built-in automation tools and compatibility with Kubernetes, SUSE Linux Micro supports seamless integration into modern containerized infrastructures. It is ideal for developers and IT operations teams who need to deploy and manage applications across distributed environments efficiently. -
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Flatcar Container Linux
Kinvolk
The introduction of container-based infrastructure was a paradigm shift. A Container-optimized Linux distribution is the best foundation for cloud native infrastructure. A minimal OS image only includes the tools needed to run containers. No package manager, no configuration drift. Delivering the OS on an immutable filesystem eliminates a whole category of security vulnerabilities. Automated atomic updates mean you get the latest security updates and open source technologies. Flatcar Container Linux is designed from the ground up for running container workloads. It fully embraces the container paradigm, including only what is required to run containers. Your immutable infrastructure deserves an immutable Linux OS. With Flatcar Container Linux, you manage your infrastructure, not your configuration. -
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Wind River Linux
Wind River Systems
Wind River Linux enables you to build and deploy secure Linux-based devices and systems without the risk and development efforts associated with roll-your-own (RYO) in-house efforts. Let Wind River keep your code base up to date, track and fix defects, apply security patches, customize your runtime to adhere to strict market specifications and certifications, facilitate your IP and export compliance, and significantly reduce your costs. Accelerate time-to-market by getting started today, building your Linux distribution with freely available Yocto Project source code, with assurance that you can easily move to one of our flexible subscription offers later. Rely on fully validated, maintained, and supported source code with access to a team of Linux experts to help you tackle all your development lifecycle needs. Calculate your TCO. Wind River Linux allows you to build your own Linux operating system with a variety of service options to help you with that process. -
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Altima Linux
Gotoogle
Open Source Operating system tweaked and customised the way we like it with a selection of the best open source software applications. A worthy replacement for Windows and MacOS. Based on rock solid Debian Linux. This is a desktop computing environment with all of the free software required for general computing work. Other specialist applications are provided as installation guides. Downloads for free and install on many old computers and bring them back to life. What you thought was an antiquated machine most likely is just suffering from bloat. Major applications included are Libre Office, PhotoShack, InkScape, Sublime Text, QEMU, Nginx, Audacity, VLC Media Player, Epiphany, Remmina. Suggested additional free downloads; VirtualBox. WINE. The best part of Altima Linux is the clever combination of Windows and Mac look and feel so that users, new and experienced will enjoy a clean easy to follow and learn desktop environment. We hope that you enjoy testing and using Altima Linux.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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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 -
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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. -
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Red Hat Enterprise Linux
Red Hat
Red Hat Enterprise Linux is an enterprise Linux operating system, certified on hundreds of clouds and with thousands of vendors. Red Hat Enterprise Linux provides a consistent foundation across environments and the tools needed to deliver services and workloads faster for any application. Red Hat Enterprise Linux reduces deployment friction and costs while speeding time to value for critical workloads, enabling development and operations teams to innovate together in any environment. Red Hat Enterprise Linux extends your hybrid cloud infrastructure to the edge—across hundreds of thousands of nodes all over the world. Create edge-optimized OS images, minimize workload interruptions caused by OS updates, transfer system updates more efficiently, and have confidence in automatic health checks and rollbacks. Run purpose-built command line utilities to automate many inventory and remediation steps associated with upgrading your subscription or migrating from another Linux distro.Starting Price: $99 one-time payment -
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SUSE Linux Enterprise Server (SLES) is a robust, scalable, and secure enterprise-grade operating system designed for businesses and organizations. It offers a reliable platform for running mission-critical workloads and applications across physical, virtual, and cloud environments. SUSE Linux Enterprise Server provides advanced features such as high availability, virtualization, and cloud integration, making it ideal for deploying complex IT infrastructures. It is known for its stability and long-term support, ensuring organizations can maintain a secure and consistent environment over time. SUSE's management tools allow for streamlined configuration and automation, simplifying the deployment and maintenance of servers. It supports a wide range of hardware architectures, including x86_64, ARM, and IBM Power, ensuring flexibility for various business needs. SUSE Linux Enterprise Server is also optimized for performance, with strong security features.
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Vulnsy
Vulnsy
Vulnsy is a penetration testing reporting platform designed to help security professionals generate professional reports quickly and efficiently. Built by pentesters, it replaces manual Word-based reporting workflows with a streamlined system for documenting vulnerabilities and producing deliverables. The platform includes a reusable findings library that allows users to insert common vulnerabilities and customize details instead of rewriting them each time. Automated templates handle formatting and styling, ensuring consistent and professional-looking reports across engagements. Users can organize screenshots and proof-of-concept evidence with drag-and-drop tools that automatically embed them into reports. Vulnsy also provides a secure client portal for delivering reports and managing communication with clients. By combining workflow management, report generation, and collaboration tools, Vulnsy enables security teams to complete reporting tasks in minutes rather than hours.Starting Price: $38 -
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Bodhi Linux
Bodhi Linux
Bodhi Linux, a lightweight distribution featuring the fast & fully customizable Moksha Desktop. The 64-bit is built on top of Ubuntu (20.04). The 32-bit Non-PAE architecture has a Ubuntu 18.04 base, Bodhi Linux 6.0.0 is the Enlightened Linux Distribution. Bodhi is a small open-source distro with a rather small team of active Team Members, we are always looking for help. In particular, we are looking for c, bash, and python programmers, translators, graphic artists, theme developers, and more. If you think you can help contact us. Not all users can contribute to the code and documentation so even a small financial donation helps tremendously. It’s known for minimalism, resource efficiency, and user choice. The team behind Bodhi Linux works to make the distribution as lean as possible and believes that the end-user should be able to choose the applications that they want rather than have a bunch of pre-installed applications that are unnecessary. -
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OnSecurity
OnSecurity
OnSecurity is a leading CREST-accredited penetration testing vendor based in the UK, dedicated to delivering high-impact, high-intelligence penetration testing services to businesses of all sizes. By simplifying the management and delivery of pentesting, we make it easier for organisations to enhance their security posture and mitigate risks, contributing to a safer, more secure digital environment for everyone. Make use of real-time reporting and immediate validation on fixes with FREE retesting. Streamline and reduce your admin overhead by integrating with existing workflows and demonstrate clear ROI. Pentesting, Vulnerability Scanning and Threat Intelligence all in one platform.Starting Price: $9.30 per month -
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PCLinuxOS
PCLinuxOS
PCLinuxOS is a free easy to use Linux-based Operating System for x86_64 desktops or laptops. PCLinuxOS is distributed as a LiveCD/DVD/USB ISO image, and can also be installed to your computer. The LiveCD/DVD/USB mode lets you try PCLInuxOS without making any changes to your computer. If you like it, you can install the operating system to your hard drive. Locally installed versions of PCLinuxOS utilize the Advanced Packaging Tool (or APT), a package management system (originally from the Debian distribution), together with Synaptic, a GUI frontend to APT for easy software installation. PCLinuxOS has over 12,000 rpm software packages available from our software repository. PCLinuxOS has a script called mylivecd, which allows the user to take a ‘snapshot’ of their current hard drive installation (all settings, applications, documents, etc.) and compress it into an ISO CD/DVD/USB image. -
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TrueNAS
iXsystems
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. The TrueNAS CORE edition (formerly FreeNAS) is based on FreeBSD for unified scale-up storage. The TrueNAS SCALE edition is based on Debian Linux for either scale-up or scale-out solutions, and offers Linux Containers, VMs (KVM), and scale-out ZFS storage capabilities. Both are known to work well on standard hardware. Join the millions already using TrueNAS, including the majority of Fortune 500 companies, and experience why TrueNAS is very highly rated for yourself.Starting Price: Free -
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Alpine Linux
Alpine Linux
Alpine Linux is an independent, non-commercial, general purpose Linux distribution designed for power users who appreciate security, simplicity and resource efficiency. Alpine Linux is built around musl libc and busybox. This makes it smaller and more resource efficient than traditional GNU/Linux distributions. A container requires no more than 8 MB and a minimal installation to disk requires around 130 MB of storage. Not only do you get a fully-fledged Linux environment but a large selection of packages from the repository. Binary packages are thinned out and split, giving you even more control over what you install, which in turn keeps your environment as small and efficient as possible. Alpine Linux is a very simple distribution that will try to stay out of your way. It uses its own package manager called apk, the OpenRC init system, script driven set-ups and that’s it! This provides you with a simple, crystal-clear Linux environment without all the noise. -
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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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Zorin OS
Zorin OS
Zorin OS is designed to be easy, so you won't need to learn anything to get started. The Zorin Appearance app lets you change the desktop to resemble the environment you're familiar with, whether it's Windows, macOS, or Linux. Built on an Ubuntu & Linux foundation, Zorin OS runs on the same Open Source software that powers the U.S. Department of Defense, NASA, and more. Thanks to Linux's advanced security features, Zorin OS is resistant to viruses. Security patches and software updates are available for years to come. Zorin OS works lightning fast and doesn't slow down with updates. The Lite edition runs snappy on computers as old as 15 years, so you can breathe new life into old PCs. From a full Microsoft Office-compatible office suite to professional photo editing software, Zorin OS comes with powerful apps out of the box. Countless more apps and games are available from the Software store and Steam.Starting Price: Free -
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Slax
Slax
Slax is a modern, portable, small and fast Linux operating system with modular approach and outstanding design. It runs directly from your USB flash drive without installing, so you can carry it everywhere you go in your pocket. Despite its small size, Slax provides nice graphical user interface and wise selection of pre-installed programs, such as a Web browser, Terminal, and more. Slax is now based on Debian, which gives you the ability to benefit from its entire ecosystem. Tens of thousands of prebuilt packages with applications, all within reach thanks to apt command. Major milestones for next Slax versions are tracked and funded through Patreon website and you can accelerate their development with a financial contribution. I am updating Slax regularly on my own to keep it up to date, but some features requested by users are implemented only after they are backed by sufficient amount of patrons.Starting Price: $29.95 one-time payment -
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Reconmap
Netfoe
Take your pentesting projects to the next level with a collaboration tool that streamline your entire process. Reconmap is a powerful, browser-based collaboration platform for penetration testing that helps infosec teams through the use of automation and reporting. Generate complete pentest reports with Reconmap's templates; save time and effort. Command automators allow you to execute multiple commands with any or little manual intervention. Automatically generate a report with the command findings. Analyze data on pentests, vulnerabilities, and projects to make informed decisions on their management. Find out how much time is spent on different tasks with our dashboard.Starting Price: £39 -
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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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RedSentry
RedSentry
The quickest, most affordable penetration testing and vulnerability management solutions to help you get compliant and keep all of your assets secure, year around. Our pentest report format is easy to understand and will give you all the information you need to secure your environment. We’ll provide a customized plan of action to help you combat any vulnerabilities, prioritize based on severity, and improve your security posture. Our pentest report format is easy to understand and will give you all the information you need to secure your environment. We’ll provide a customized plan of action to help you combat any vulnerabilities, prioritize based on severity, and improve your security posture. -
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Reporter
Security Reporter
Security Reporter is an enterprise-grade pentest reporting software designed to streamline and standardize the penetration testing and security assessment reporting workflow. The platform supports security teams and pentesting providers in managing findings, producing professional reports, and delivering consistent results across complex environments. Key capabilities include a centralized content and vulnerability library, customizable report templates, multi-language reporting, and native imports from more than 140 security testing tools. These features support efficient vulnerability management, accurate reporting, and repeatable assessment processes. Security Reporter is offered exclusively as a self-hosted, on-premise solution, ensuring full control over sensitive security data and supporting common compliance and data governance requirements. By reducing manual reporting effort and minimizing errors, the platform improves productivity and shortens reporting cycles. -
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Linux Mint
Linux Mint
The purpose of Linux Mint is to produce a modern, elegant and comfortable operating system which is both powerful and easy to use. Linux Mint is one of the most popular desktop Linux distributions and used by millions of people. It works out of the box, with full multimedia support and is extremely easy to use. It's both free of cost and open source. It's community-driven. Users are encouraged to send feedback to the project so that their ideas can be used to improve Linux Mint. It's safe and reliable. Thanks to a conservative approach to software updates, a unique Update Manager and the robustness of its Linux architecture, Linux Mint requires very little. -
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PurpleLeaf
PurpleLeaf
PurpleLeaf is a better penetration test that covers your organization continuously. Purpleleaf is a platform powered by passionate, research-focused, penetration testers. We scope the size and complexity of your application or infrastructure. We provide a quote for the testing (just as you would a traditional annual pentest). Within 1 – 2 weeks your pentest report will be available. Periodic testing continues throughout the year and will receive monthly reports as well as notifications for new vulnerabilities, assets, and applications discovered. A traditional pentest can leave you vulnerable for 11 months of the year. Our testing is performed throughout the year. PurpleLeaf allows for even a small number of hours to provide coverage for longer periods of time. With our model, you only pay for what you need. Most pentest reports fail to show what your attack surface really looks like. In addition to showing vulnerabilities, we visualize applications, show dangerous services, etc. -
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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 -
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Oracle Linux
Oracle
An open and complete operating environment, Oracle Linux delivers virtualization, management, and cloud native computing tools, along with the operating system, in a single support offering. Oracle Linux is 100% application binary compatible with Red Hat Enterprise Linux. Search the catalog to find information about independent software vendors (ISVs) who have certified their applications to run on Oracle Linux and Virtualization. Applications certified on Oracle Linux run wherever Linux runs—on-premises, in Oracle Cloud Infrastructure, and in other clouds. Join us in this Oracle Tux Tech Talk webinar on July 28 and learn how to benchmark for performance, discover the benefits of the UEK, and understand which workloads see improvement from UEK. -
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IBM z/VM
IBM
IBM z/VM is an operating system with security-rich and scalable hypervisor and virtualization technology designed to run guest servers such as Linux, z/OS and z/TPF virtual machines as well as Red Hat OpenShift on IBM Z and LinuxONE servers. IBM z/VM runs hundreds to thousands of guest servers on a single IBM Z or IBM LinuxONE server with high efficiency and elasticity. It supports multiple machine images and architectures, simplifying migrations, facilitating application transitions, and consolidating systems onto one server. IBM z/VM excels in sharing system resources among virtual machines, offering extreme scalability, security, and efficiency, leading to cost savings and a robust foundation for cognitive computing. Use on-premises cloud computing in a hybrid cloud strategy. Scale and run thousands of Linux and container workloads efficiently. Help ensure continuous availability with IBM's resiliency offerings. -
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NVIDIA Cumulus Linux
NVIDIA Networking
Reduce complexities and benefit from complete interoperability across your entire data center with Linux. Get additional levels of security, exclusive to Cumulus Linux, in addition to industry-standard security features. Use the existing Linux-based management tools and talent, and benefit from the ability to assign more switches per engineer. Easily leverage native integration and best-of-breed tools for automation, monitoring, analytics, and more. Run multiple network paths without the need for multiple switches, giving you traffic isolation and network segmentation for multiple devices. Efficiently go from whiteboard to physical cable. With PTM, you can program your data center to verify connections and resolve issues faster. Realize blazing fast speeds and the lowest latencies with RoCE implementation that’s ready with just one line of code. -
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Gentoo
Gentoo Foundation
Gentoo is a free operating system based on Linux that can be automatically optimized and customized for just about any application or need. Extreme configurability, performance, and a top-notch user and developer community are all hallmarks of the Gentoo experience. Thanks to a technology called Portage, Gentoo can become an ideal secure server, development workstation, professional desktop, gaming system, embedded solution, or something else, whatever you need it to be. Because of its near-unlimited adaptability, we call Gentoo a metadistribution. Of course, Gentoo is more than just software. It is also a community around the distribution. Gentoo benefits from around 250 developers and thousands of users, many of which are experts in their fields. The distribution project provides the means for the users to enjoy Gentoo: documentation, infrastructure, release engineering, software porting, quality assurance, security followup, hardening, and more. -
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Attack Surface Management detects known, unknown, and potentially vulnerable public-facing assets, as well as changes to your attack surface that may introduce risk. How? Through a combination of NetSPI’s powerful ASM technology platform, our global penetration testing experts, and our 20+ years of pen-testing expertise. Take comfort in the fact that the ASM platform is always on, working continuously in the background to provide you with the most comprehensive and up-to-date external attack surface visibility. Get proactive with your security using continuous testing. ASM is driven by our powerful automated scan orchestration technology, which has been utilized on the front lines of our pen-testing engagements for years. We use various automated and manual methods to continuously discover assets and leverage open source intelligence (OSINT) to identify publicly available data sources.
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Slackel
Slackel
Slackel is a Linux distribution based on Slackware and Salix. It is fully compatible with Slackware but the difference is that it includes the current version of Slackware. So Slackware users can benefit from Slackel repositories. It is available in three editions, KDE, Openbox and MATE. Slackel disc images can be used in two different forms, Installation disc image and Live disc image. Slackel provides one application per task rationale. It is fully backwards compatible with Slackware. Optimized for desktop usage, with Salix and Slackel tools to assist system management, high quality package repositories with dependency support. It includes a fully configured desktop environment with a complete selection of applications to fit the needs of most people, including office related software, multimedia applications, Internet applications, all the Slackel system configuration tools and more. -
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Raxis
Raxis
For organizations that are tired of check-the-box vulnerability scans that masquerade as pentests, Raxis is a welcome reprieve. A certified team of US citizen testers, the Raxis penetration testing team is known for thorough testing and clear reporting. Raxis Attack, their PTaaS option, is available for external & internal networks as well as web applications and uses the same team as their traditional pentests. This continual service includes unlimited on-demand human manual testing as well as chats with the Raxis pentest team through the Raxis One portal. Their traditional penetration testing offering, Raxis Strike, is available for internal networks, external networks, wireless, web applications, mobile applications, APIs, SCADA, IoT, and device testing. They also offer full red team and purple team services. -
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Rhino Security Labs
Rhino Security Labs
Recognized as a top penetration testing company, Rhino Security Labs offers comprehensive security assessments to fit clients' unique high-security needs. With a pentest team of subject-matter experts, we have the experience to reveal vulnerabilities in a range of technologies — from AWS to IoT. Test your networks and applications for new security risks. Rhino Security Labs leads the industry in web application penetration testing, identifying vulnerabilities in a range of programming languages and environments. From webapps in highly scalable AWS environments to legacy apps in traditional infrastructure, out security experts have helped secure data across the world. With dozens of zero-day vulnerabilities disclosed and our research circulating on national news outlets, we consistently prove our commitment to top-notch security testing.
