List of the Top 13 Operating Systems for Amazon Web Services (AWS) in 2026

The open-source ecosystem offers enhanced security features, a broader selection of packages, and state-of-the-art tools, covering environments from cloud to edge. To protect your open-source applications, it is vital to maintain thorough patching practices that span from the kernel through libraries and applications, ensuring compliance with CVEs. Both governmental bodies and auditors have confirmed Ubuntu's compliance with essential standards such as FedRAMP, FISMA, and HITECH. Now is the perfect moment to rethink the possibilities that Linux and open-source technologies can provide. Many organizations collaborate with Canonical to lower the expenses tied to open-source operating systems. By automating various processes, including multi-cloud management, bare metal provisioning, edge clusters, and IoT devices, you can achieve greater efficiency. Ubuntu stands out as an ideal platform for diverse professionals, ranging from mobile app developers and engineering managers to video editors and financial analysts handling intricate models. Its adaptability, reliability, ongoing updates, and extensive libraries make it a preferred choice for development teams worldwide. With a strong community backing and a dedication to ongoing innovation, Ubuntu continues to be a top contender in the realm of open-source solutions, making it an attractive option for both new and experienced users. Additionally, its versatility and user-friendly interface facilitate a smooth transition for those new to open-source software.

CIQ enables individuals to achieve remarkable feats by delivering cutting-edge and reliable software infrastructure solutions tailored for various computing requirements. Their offerings span from foundational operating systems to containers, orchestration, provisioning, computing, and cloud applications, ensuring robust support for every layer of the technology stack. By focusing on stability, scalability, and security, CIQ crafts production environments that benefit both customers and the broader community. Additionally, CIQ proudly serves as the founding support and services partner for Rocky Linux, while also pioneering the development of an advanced federated computing stack. This commitment to innovation continues to drive their mission of empowering technology users worldwide.

VyOS Networks leads the global open-source networking space, delivering highly scalable, secure, and automated solutions for bare metal, cloud, and edge environments. We offer a highly adaptable, enterprise-ready platform that guarantees consistent automation, peak performance, and total operational control, completely free from vendor restrictions. Our core mission is to give organizations their network infrastructure back via transparent, vendor-agnostic technology. VyOS Universal Router provides a single, consistent networking layer across all of them: • Same operating system • Same configuration model • Same CLI and APIs • Same automation workflows • Same operational model across tenants and regions Your network, your rules.

Arm Mbed OS is a freely available operating system specifically designed for Internet of Things (IoT) applications, equipping developers with the essential resources to create advanced IoT devices. This powerful operating system is optimized for smart and connected products that utilize Arm Cortex-M architecture, providing features like machine learning capabilities, secure connectivity options, an RTOS kernel, and drivers for a range of sensors and I/O devices. Tailored for the needs of the Internet of Things, Arm Mbed OS encompasses functionalities in connectivity, machine learning, networking, and security, along with an extensive library of software, development boards, tutorials, and real-world examples. It encourages collaboration within a broad ecosystem, supporting over 70 partners across various sectors, including silicon manufacturers, module developers, cloud service providers, and OEMs, thus broadening the options available for developers. By utilizing the Mbed OS API, developers can produce clean, portable, and easy-to-manage application code while also taking advantage of enhanced security, communication, and machine learning features. This integrated solution not only simplifies the development process but also significantly reduces costs, shortens development time, and mitigates risks. Moreover, Mbed OS facilitates innovation by allowing developers to quickly prototype and confidently deploy IoT solutions, ultimately driving technological advancement in the field. The comprehensive support provided by the Mbed community further enriches the development experience, making it an ideal choice for both novice and experienced developers alike.

SUSE Linux Enterprise Real Time functions as a real-time operating system designed to reduce latency and improve the predictability and reliability of critical time-sensitive applications, whether they involve monitoring industrial equipment through IoT sensors or managing edge systems that need prompt reactions to external inputs. Numerous industries, including finance, manufacturing, and government, rely on applications that must operate accurately and consistently without fail. For distributed systems to work effectively together, precise time synchronization is essential, not only within individual servers but also across all connected servers. The Precision Time Protocol (PTP) facilitates this synchronization over high-speed networks, achieving remarkable accuracy down to sub-microsecond precision. Furthermore, it supports device interrupt threads, enabling enhancements at the device level, and incorporates hardware latency detectors to ensure that application behavior remains stable. By utilizing SUSE Linux Enterprise Real Time, organizations gain a vital competitive advantage in timing efficiency, which helps ensure that their applications operate reliably and seamlessly. This capability allows businesses to adapt quickly to evolving market demands while upholding exceptional performance standards. Ultimately, the integration of this advanced operating system can lead to significant improvements in operational efficiency and service delivery.

AlmaLinux OS stands as a free and open-source enterprise Linux distribution that is community-driven, designed specifically to guarantee long-term stability and deliver a dependable platform for production environments. It ensures a 1:1 binary compatibility with both RHEL® and pre-Stream CentOS, making it an excellent option for those migrating from these systems. The source code and essential tools for constructing AlmaLinux OS are available through our GitHub organization, promoting transparency and collaborative efforts. You can join our vibrant Reddit community to engage with fellow AlmaLinux OS users, where you can stay informed and seek or provide assistance. Additionally, you can participate in live discussions with members of the governance team and AlmaLinux OS developers, where you are welcome to pose questions, share insights, and offer help to others. With complete independence as a free operating system, AlmaLinux OS enjoys an annual financial backing of $1 million from CloudLinux Inc, along with support from various other sponsors. The continuous development and improvement of AlmaLinux OS are collectively overseen by community members, ensuring that the platform grows in alignment with user needs and preferences. The active participation of users is vital for shaping the future of this distribution, reinforcing its dedication to community governance and collaboration. This strong sense of community involvement not only enhances the user experience but also helps drive innovations that meet the demands of an ever-evolving technological landscape.

Fedora CoreOS is a streamlined operating system that automatically updates and is specifically built to securely host containerized applications at scale. It is available on multiple platforms, with expectations of additional options coming soon. Fedora CoreOS (FCOS) offers three separate update streams: stable, testing, and next; while it is generally recommended to stick with the stable stream, using the testing and next streams on some instances is encouraged to provide valuable feedback. When automating Fedora CoreOS installations, interacting with stream metadata becomes necessary. Even though Fedora CoreOS supports automatic in-place updates, it is advisable to set up new machines with the most recent images available. Importantly, rather than offering a distinct installation disk, Fedora CoreOS creates instances from a universal disk image that is configured during the initial boot using Ignition. The entire operating system is based on open-source and free software principles, allowing not only cost-free usage but also the ability to share, adapt, and remix it as per your requirements. This level of customization and openness presents Fedora CoreOS as an attractive choice for developers and organizations seeking a resilient and versatile platform. Additionally, the community behind Fedora CoreOS frequently collaborates to enhance its features, further ensuring it remains aligned with modern technological needs.

SUSE Linux Micro is a highly efficient, container-centric Linux operating system designed for edge computing and microservices. Its compact size enhances both security and performance, which is particularly beneficial for deploying applications in containerized environments. This platform supports fast, scalable, and cost-effective cloud-native development, especially suited for scenarios with constrained resources. Equipped with built-in automation tools and complete Kubernetes compatibility, SUSE Linux Micro guarantees smooth integration into modern containerized infrastructures. Its architecture is crafted to meet the demands of developers and IT operations teams, enabling them to effectively deploy and manage applications in various distributed settings. Furthermore, the lightweight and powerful features make it an attractive option for organizations aiming to strengthen their container initiatives. As such, SUSE Linux Micro stands out as a pivotal solution in the evolving landscape of cloud-native technologies.

The emergence of container-based infrastructure has marked a pivotal shift in the realm of technology. A Linux distribution tailored specifically for containers provides an optimal foundation for a cloud-native environment. This minimalist operating system image is designed to include only the vital tools required for running containers. By eliminating a package manager, it effectively avoids any risks associated with configuration drift. The implementation of an immutable filesystem contributes significantly to reducing various security risks. Furthermore, automated atomic updates guarantee that you receive the latest security patches and advancements in open-source technology consistently. Flatcar Container Linux is meticulously designed from the ground up to efficiently handle container workloads. It fully adopts the container philosophy by integrating only the essential components necessary for container operation. In the context of immutable infrastructure, possessing a similarly immutable Linux operating system becomes essential. With Flatcar Container Linux, the emphasis transitions from managing configurations to efficiently overseeing your infrastructure, leading to a more streamlined and secure operational landscape. This transformative approach not only enhances efficiency but also fundamentally changes how organizations oversee their cloud-native applications and services, paving the way for a more agile future in technology management.

Kali Linux is an open-source distribution based on Debian, crafted specifically for a range of information security tasks such as penetration testing, security research, computer forensics, and reverse engineering. Although any Linux distribution can be modified to include penetration testing tools, this often necessitates significant setup and configuration time. Kali Linux is designed to alleviate much of this burden, allowing security professionals to concentrate on their work immediately. Users can utilize Kali from nearly any platform, including mobile devices, Docker, ARM architectures, Amazon Web Services, the Windows Subsystem for Linux, virtual machines, or even directly on hardware. The presence of metapackages that are tailored for specific security operations, along with a well-documented ISO customization process, makes it easy to create a version of Kali that meets individual requirements. This adaptability makes Kali a suitable option for both seasoned experts and those new to the field, as the extensive documentation provides essential support for all users. Furthermore, the vibrant community engaged with Kali Linux plays a crucial role in its ongoing development, continuously enhancing the resources and tools available to its user base. This collaborative effort not only improves the software but also fosters a sense of belonging among its users.

KubeSphere functions as a distributed operating system specifically crafted for overseeing cloud-native applications, relying on Kubernetes as its foundational technology. Its design is modular, facilitating seamless incorporation of third-party applications within its ecosystem. As a distinguished multi-tenant, enterprise-grade, open-source platform for Kubernetes, KubeSphere boasts extensive automated IT operations alongside streamlined DevOps practices. The platform is equipped with an intuitive, wizard-driven web interface that enables organizations to enrich their Kubernetes setups with vital tools and capabilities essential for successful enterprise strategies. Being recognized as a CNCF-certified Kubernetes platform, it remains entirely open-source and benefits from community contributions for continuous improvement. KubeSphere is versatile, allowing deployment on existing Kubernetes clusters or Linux servers, and providing options for both online and air-gapped installations. This all-encompassing platform effectively offers a variety of features, such as DevOps support, service mesh integration, observability, application management, multi-tenancy, along with storage and network management solutions, making it an ideal choice for organizations aiming to enhance their cloud-native operations. Moreover, KubeSphere's adaptability empowers teams to customize their workflows according to specific requirements, encouraging both innovation and collaboration throughout the development lifecycle. Ultimately, this capability positions KubeSphere as a robust solution for organizations seeking to maximize their efficiency in managing cloud-native environments.

SUSE Linux Enterprise Server (SLES) is a robust and secure OS designed specifically for businesses and organizations, offering a dependable and scalable platform for crucial applications and workloads in various settings, including physical, virtual, or cloud environments. This operating system is equipped with sophisticated functionalities such as high availability, virtualization support, and seamless cloud integration, making it ideal for the implementation of advanced IT frameworks. Known for its reliability and long-term support, SLES allows enterprises to sustain a secure and stable operational environment over prolonged periods. Furthermore, SUSE's management tools promote efficient configuration and automation, significantly easing the tasks associated with server deployment and maintenance. It supports a wide range of hardware architectures, including x86_64, ARM, and IBM Power, providing the flexibility necessary to accommodate diverse business requirements. In addition to its performance optimization, SUSE Linux Enterprise Server includes strong security measures to safeguard critical data and resources. With its extensive support and innovative features, SLES is an outstanding option for organizations looking to boost their IT capabilities while ensuring a secure operating environment. Ultimately, the continuous development and support from SUSE further enhance the viability of SLES as a leading choice for enterprise solutions.

Run all of your enterprise and cloud applications in a secure, high-performance environment powered by Linux. Amazon Linux 2, a Linux operating system provided by Amazon Web Services (AWS), delivers a security-focused, stable, and high-performance platform ideal for developing and running cloud applications. There are no additional costs associated with this operating system, and AWS consistently offers regular updates for security and maintenance purposes. Designed to support the latest features of Amazon EC2 instances, Amazon Linux 2 is optimized for enhanced performance and includes packages that enable smooth integration with a variety of AWS services. In addition, Amazon Linux 2 provides long-term support, which allows developers, IT professionals, and independent software vendors (ISVs) to take advantage of the reliability and consistency of a Long Term Support (LTS) release, all while accessing the latest versions of popular software packages. This thoughtful approach ensures users can enjoy an efficient workflow while maintaining high standards of security and performance, making it a reliable choice for modern cloud computing needs.