Alternatives to FreeRTOS

Compare FreeRTOS alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to FreeRTOS in 2026. Compare features, ratings, user reviews, pricing, and more from FreeRTOS competitors and alternatives in order to make an informed decision for your business.

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    VxWorks

    VxWorks

    Wind River

    The World’s Leading Real-Time Operating System for the Intelligent Edge For nearly 35 years, VxWorks has been used to ensure the security, safety, and reliability you need to design and build mission-critical embedded systems that simply must work. VxWorks® is the industry’s most trusted and widely deployed real-time operating system (RTOS) for mission-critical embedded systems that must be secure and safe. It delivers a proven, real-time, and deterministic runtime combined with a modern approach to development. Regardless of industry or device type, companies building intelligent edge systems rely on the VxWorks pedigree of security, safety, high performance, and reliability. VxWorks is a deterministic, priority-based preemptive RTOS with low latency and minimal jitter. It is built on an upgradable, future-proof architecture to help you rapidly respond to changing market requirements and technology advancements.
    Starting Price: $18,500 / seat
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    LynxOS

    LynxOS

    Lynx Software Technologies

    LynxOS has been deployed in millions of embedded devices and has operated reliably for 30+ years across multiple safety and security-critical embedded markets. It is a tried and true approach for hosting applications on a Unix-like OS model wherein all resources and application services are centrally managed by a common kernel and is best-suited for working with hardware architectures that predate virtualization. We want our customers to buy what they need, and only what they need. Real-time operating systems can provide a tremendous amount of value, but they are not required for every embedded system design. For a more complete listing of our RTOS-related resources, visit our Embedded Systems Learning Center, which is filled with helpful material for making software purchase decisions as you design or update your system and consider which real-time platform vendor is right for you.
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    Mbed OS
    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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    Amazon FreeRTOS
    FreeRTOS is an open source, real-time operating system for microcontrollers that makes small, low-power edge devices easy to program, deploy, secure, connect, and manage. Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of software libraries suitable for use across industry sectors and applications. This includes securely connecting your small, low-power devices to AWS Cloud services like AWS IoT Core or to more powerful edge devices running AWS IoT Greengrass. FreeRTOS is built with an emphasis on reliability and ease of use, and offers the predictability of long term support releases. A microcontroller contains a simple, resource-constrained processor that can be found in many devices, including appliances, sensors, fitness trackers, industrial automation, and automobiles.
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    BlackBerry QNX

    BlackBerry QNX

    BlackBerry QNX

    Launch your critical embedded systems faster with our commercial RTOS, development tools and services. BlackBerry QNX delivers a time-tested real-time operating system (RTOS), hypervisor, and other embedded software to help make you successful. We are the embedded OS of choice for ventilators, train controls, factory automation systems, medical robots and more. Whether your priority is safety certification, security or performance, our software, tools and services can help you build more reliable products. If you’re looking to increase security or safety, or you want to streamline your cross-platform development process, we can help. We can bring your plans to life with an RTOS and hypervisor purpose-built for embedded systems, including pre-certified product variants. Our modular microkernel architecture delivers better reliability and saves duplication of OS development effort across multiple products.
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    DuinOS

    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.
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    Apache NuttX
    NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 32-bit microcontroller environments, the primary governing standards in NuttX are Posix and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()). Apache NuttX is an effort undergoing Incubation at The Apache Software Foundation (ASF), sponsored by the Incubator. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects.
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    Nucleus RTOS

    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.
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    Zephyr

    Zephyr

    Zephyr

    From simple embedded environmental sensors and LED wearables to sophisticated embedded controllers, smart watches, and IoT wireless applications. Implements configurable architecture-specific stack-overflow protection, kernel object and device driver permission tracking, and thread isolation with thread-level memory protection on x86, ARC, and ARM architectures, userspace, and memory domains. For platforms without MMU/MPU and memory constrained devices, supports combining application-specific code with a custom kernel to create a monolithic image that gets loaded and executed on a system’s hardware. Both the application code and kernel code execute in a single shared address space.
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    OpenWrt

    OpenWrt

    OpenWrt

    OpenWrt is a highly extensible GNU/Linux distribution for embedded devices (typically wireless routers). Unlike many other distributions for routers, OpenWrt is built from the ground up to be a full-featured, easily modifiable operating system for embedded devices. In practice, this means that you can have all the features you need with none of the bloat, powered by a modern Linux kernel. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with optional package management. This frees you from the restrictions of the application selection and configuration provided by the vendor and allows you to use packages to customize an embedded device to suit any application. For developers, OpenWrt provides a framework to build an application without having to create a complete firmware image and distribution around it.
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    B2IQ Edge

    B2IQ Edge

    Bsquare

    B2IQ Edge is a compact and efficient edge client that supports bi-directional communication between devices, sensors, and cloud components. B2IQ Edge runs on Linux and FreeRTOS devices. As a Microsoft distributor and partner for more than 25 years, Bsquare offers a complete suite of OS (operating system) products and services to get your product to market quickly. We are the only authorized Windows IoT distributor that specializes in software exclusively, making sure your hardware stays yours. SquareOne enables over-the-air control at scale for a diverse IoT fleet –across operating systems and across fixed device types. The easy-to-use interface and comprehensive suite of tools allow an internal team to remotely manage the OS of devices, diagnose issues and deploy upgrades and updates. With remote control, you can keep your devices compliant, up-to-date and ensure a positive customer experience.
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    Huawei LiteOS
    Huawei LiteOS is an IoT-oriented software platform integrating an IoT operating system and middleware. It is lightweight, with a kernel size of under 10 KB, and consumes very little power — it can run on an AA battery for up to five years! It also allows for fast startup and connectivity and is very secure. These capabilities make Huawei LiteOS a simple yet powerful one-stop software platform for developers, lowering barriers to entry for development and shortening time to market. Huawei LiteOS provides a unified open-source API that can be used in IoT domains as diverse as smart homes, wearables, Internet of Vehicles (IoV), and intelligent manufacturing. Huawei LiteOS enables an open IoT ecosystem, helping partners to quickly develop IoT products and accelerate IoT development.
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    Nubix

    Nubix

    Nubix

    Nubix is a container platform that makes it easy to develop and deploy IoT and edge applications. Nubix runs on the tiniest microprocessors, enabling developers to easily process data on the sensor device where the data is created. Traditionally, updates to microcontroller devices have required replacing an entire firmware, a risky process that sometimes "bricks" devices. Nubix eliminates that risk with tiny containers, whose code is independent from the operating system reducing risk and speeding up release processes. Common edge architectures aren't really edge at all, instead forcing developers to transport data to the cloud or gateways for processing. Nubix's edge-native architecture enables processing of the data on the devices where data is created, eliminating the latency and overhead associated with networking and remote processing. And, Nubix is built on open source technologies so you are not locked into proprietary vendor languages and libraries.
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    RT-Thread

    RT-Thread

    RT-Thread

    Welcome to the RT-Thread initiative on SourceForge! RT-Thread is a community-led, open-source Real-Time Operating System. It boasts an extensive feature set, compatibility with over 600 ready-to-use software packages and a broad spectrum of components, and supports all mainstream chip architectures. It also includes a proprietary IDE, the RT-Thread Studio, to assist engineers in quickly embarking on embedded and IoT development. Designed with scalability in mind, RT-Thread is a flexible option for various IoT applications, thanks to its Nano version tailored for resource-limited applications. We invite you to join us on this thrilling journey and help shape the future of IoT and RTOS!
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    TASKING

    TASKING

    TASKING

    The quality of your code is valued by its efficiency and ability to execute flawlessly. Is your current development environment providing you with the tools you need to create clean, efficient, and correct code? You’re responsible for developing solutions that impact human longevity and safety, and the last thing you can afford to compromise on is your integrated development environment. The TASKING Embedded Software Development solutions provide an industry-leading ecosystem for your entire software development process. Each TASKING compiler is developed for a specific architecture and meets the unique needs of your specialized industry requirements including automotive, industrial, telecom, and datacom. A complete integrated development environment allows you to create error-free and efficient code with compilers, debuggers, embedded internet, and RTOS support for industry-leading microprocessors and microcontrollers.
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    TizenRT

    TizenRT

    Tizen

    Tizen is an open and flexible operating system built from the ground up to address the needs of all stakeholders of the mobile and connected device ecosystem, including device manufacturers, mobile operators, application developers and independent software vendors (ISVs). Tizen platform is commercialized on smart TVs, smartphones, wearable devices (Gear S, Gear Fit), and smart home appliances. However, low-end and low-cost IoT devices, such as home appliances without display and wearable bands with a small LCD, have received less attention. The objective of TizenRT is to extend the Tizen platform device coverage to these kind of low-end devices.
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    MPLAB Harmony v3
    MPLAB® Harmony v3 is a fully integrated embedded software development framework that provides flexible and interoperable software modules to simplify the development of value-added features and reduce your product’s time to market. Core-agnostic implementation which supports both MIPS® and Arm® Cortex® core architectures. Code portability with consistent APIs that can be used across different device families. Easily configurable using MPLAB Harmony Configurator’s (MHC’s) Graphical User Interface (GUI). Validated across 32-bit PIC® (MIPS-based) and SAM (Arm Cortex-based) MCU and MPU device families. Fully Integrated with third-party solutions like FreeRTOS and Micrium® and able to import projects created in IAR Embedded Workbench. Added support for SAM families of Arm Cortex-M based devices, including a free software development environment. Easy device and library setup using the graphical configuration features provided by MHC’s GUI.
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    MIPS Embedded OS (MEOS)
    We collaborate with open-source and commercial partners to provide MIPS support for many of the popular Real Time Operating Systems (RTOS) and the new generation of IoT specific Operating Systems. In addition, we have developed the MIPS Embedded Operating System (MEOS) with Virtualization extensions that targets deeply embedded applications and the IoT space. MEOS is MIPS’ in-house real-time operating system (RTOS). Being in-house, it is always the first to support new cores and architecture features. Version 3.1 of MEOS includes a virtualization library to extend MEOS into a hypervisor for use on MIPS cores which implement the MIPS Virtualization module. Where possible we will assist in the development open-source real-time/IoT operating systems through the donation of engineering resource or the supply of development hardware and tools.
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    eLxr Pro

    eLxr Pro

    Wind River

    eLxr Pro from Wind River is a commercial enterprise-grade Linux solution designed for cloud-to-edge deployments, supporting mission-critical workloads like AI, machine learning, and computer vision. Built on the open-source eLxr distribution, eLxr Pro offers flexible, long-term support, security monitoring, and ongoing updates. It ensures compatibility with hardware accelerators and compliance with industry standards. By providing expert consultative services and performance optimizations, eLxr Pro helps businesses scale their edge computing solutions while managing costs, security, and resources effectively.
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    RIOT

    RIOT

    RIOT

    RIOT powers the Internet of Things like Linux powers the Internet. RIOT is a free, open source operating system developed by a grassroots community gathering companies, academia, and hobbyists, distributed all around the world. RIOT supports most low-power IoT devices, microcontroller architectures (32-bit, 16-bit, 8-bit), and external devices. RIOT aims to implement all relevant open standards supporting an Internet of Things that is connected, secure, durable & privacy-friendly. RIOT supports DTLS transport layer security, IEEE 802.15.4 encryption, Secure Firmware Updates (SUIT), multiple cryptographic packages, and crypto secure elements. RIOT is modular to adapt to application needs. We aim to support all common network technologies and Internet standards. RIOT is open to new developments and often an early adaptor in networking.
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    Micrium OS

    Micrium OS

    Silicon Labs

    At the heart of any embedded OS is a kernel, which provides vital task scheduling and multi-tasking services to ensure that the timing requirements of your application code can be met, even as you regularly update and expand that code with new features. Micrium OS is more than a kernel, though, providing a number of additional modules to help you meet your project’s needs. Micrium OS is provided entirely free of charge for deployment on Silicon Labs EFM32 and EFR32 devices! You can begin adding Micrium’s professional-quality components to your projects today without payment of any licensing fees.
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    SCIOPTA

    SCIOPTA

    SCIOPTA

    The SCIOPTA architecture is specifically designed to provide excellent real-time performance and small size. Internal data structures, memory management, interprocess communication and time management are highly optimized. SCIOPTA is a pre-emptive real-time kernel. Interrupts can be serviced at any time, even inside the kernel. SCIOPTA is a message based real-time operating system. A powerful set of system calls is available to control the resources. Standardized processes and interprocess communication result in clear system designs and are easy to write, to read and to maintain. As processes are communicating with well defined messages and processes can be grouped into modules, SCIOPTA systems are very well suited for team work in big projects. The time-to-market will be reduced dramatically. SCIOPTA is designed on a message based architecture allowing direct message passing between processes. Messages are mainly used for interprocess communication and synchronization.
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    Azure RTOS

    Azure RTOS

    Microsoft

    Azure RTOS is an embedded development suite including a small but powerful operating system that provides reliable, ultra-fast performance for resource-constrained devices. It’s easy-to-use and market-proven, having been deployed on more than 10 billion devices worldwide. Azure RTOS supports the most popular 32-bit microcontrollers and embedded development tools, so you can make the most of your team’s existing skills. Easily connect to cloud and local networks, develop durable flash file systems, and design elegant user interfaces. Code that has been certified to meet stringent industry safety and security standards. Clean, clear code is easier to use and maintain and can lower total cost of ownership. Most safety-related certifications require you to submit the complete source code for your software, including the RTOS.
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    MQX RTOS
    The MQX real-time operating system (RTOS) provides real-time performance within a small, configurable footprint. The RTOS is tightly integrated with 32-bit MCUs and MPUs from NXP and is provided with commonly used device drivers. The MQX RTOS is designed to have a modern, component-based microkernel architecture allowing for customization by feature, size, and speed by selecting the components engineers wish to include while meeting the tight memory constraints of embedded systems. The MQX RTOS can be configured to take as little as 8 KB of ROM and 2.5K RAM on Arm Cortex M4, including kernel, 2 task applications,1 LW Semaphore, interrupt stack, queues, and memory manager. Provides a fully-functional RTOS core with additional, optional services. Components are linked in only if needed, preventing unused functions from bloating the memory footprint. Key components are included in both full and lightweight versions for further control of size, RAM/ROM utilization and performance options.
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    ITTIA DB
    The ITTIA DB product family combines the best of time series, real-time data streaming, and analytics for embedded systems to reduce development time and costs. ITTIA DB IoT is a small-footprint embedded database for real-time resource-constrained 32-bit microcontrollers (MCUs), and ITTIA DB SQL is a high-performance time-series embedded database for single or multicore microprocessors (MPUs). Both ITTIA DB products enable devices to monitor, process, and store real-time data. ITTIA DB products are also built for the automotive industry Electronic Control Units (ECUs). ITTIA DB data security protocols offer data protection against malicious access with encryption, authentication, and DB SEAL. ITTIA SDL is conformant to the principles of IEC/ISO 62443. Embed ITTIA DB to collect, process, and enrich incoming real-time data streams in a purpose-built SDK for edge devices. Search, filter, join, and aggregate at the edge.
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    Forth

    Forth

    Forth

    Forth, the computer language was created for programming embedded and real-time applications. Today, it is available for developing applications on Windows, DOS, and variants of Unix that include macOS. Additionally, commercial-grade Forth cross-compilers generate highly optimized code that runs on a variety of microprocessors and microcontrollers and proves themselves very capable in custom-hardware environments. Forth is a high-level programming language, although most versions include an assembler. Fourth-system providers often include software tools to help application code make good use of system resources. Forth is interactive. It is conducive to developing modular, well-tested code in shorter development times. It can also result in very concise code. Some programmers are not accustomed to languages with such brevity, directness, and (apparent) simplicity. Forth has a reputation for rapid development, lean code, and superb performance.
    Starting Price: $399 one-time payment
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    MicroPython

    MicroPython

    MicroPython

    The MicroPython pyboard is a compact electronic circuit board that runs MicroPython on the bare metal, giving you a low-level Python operating system that can be used to control all kinds of electronic projects. MicroPython is packed full of advanced features such as an interactive prompt, arbitrary precision integers, closures, list comprehension, generators, exception handling and more. Yet it is compact enough to fit and run within just 256k of code space and 16k of RAM. MicroPython aims to be as compatible with normal Python as possible to allow you to transfer code with ease from the desktop to a microcontroller or embedded system.
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    TI-RTOS

    TI-RTOS

    Texas Instruments

    TI-RTOS accelerates development schedules by eliminating the need to create basic system software functions from scratch. TI-RTOS scales from a real-time multitasking kernel - TI-RTOS Kernel - to a complete RTOS solution including additional middleware components, device drivers and power management. TI-RTOS and TI's ultra low-power MCUs combine to enable developers to design applications with much longer battery life. By providing essential system software components pre-tested and pre-integrated, TI-RTOS enables developers to focus on differentiating their application. TI-RTOS builds on existing proven software components to ensure reliability and quality. It augments these with documentation, additional examples and APIs appropriate for multitasking development and integration testing to verify that all components work together.
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    Embedded Linux
    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.
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    PikeOS

    PikeOS

    SYSGO

    PikeOS offers a separation kernel-based hypervisor with multiple partitions for many other operating systems and applications. It enables you to build smart devices for the Internet-of-Things (IoT) according to the quality, Safety and Security standards of your industry. Due to its separation kernel approach, PikeOS is the first choice for systems which demand protection against Cyber-Security attacks. In addition to the broad usage within millions of IoT and edge systems, it has also been deployed within various high critical communication infrastructures. PikeOS brings together virtualization and real-time by means of unique and never seen before technologies. It allows you to migrate numerous complex embedded circuit boards in to a single hardware. It does not stop when it comes to new hardware concepts such as Big-SoCs with multiple heterogeneous processor cores. PikeOS runs on several architectures, supporting processors that come with a memory management unit (MMU).
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    QNX Neutrino RTOS
    Since 1980, thousands of companies have deployed QNX’s real-time operating systems to ensure the ideal combination of performance, security and reliability in mission-critical systems. At the core of QNX technology is the QNX Neutrino® Real-time Operating System (RTOS), a full-featured RTOS enabling next-generation products in every industry where reliability matters, including automotive, medical devices, robotics, transportation, and industrial embedded systems. With the QNX microkernel architecture, a component failure doesn’t bring down other components or the kernel. The failed component is simply shut down and restarted without adversely affecting the rest of the system. The QNX Neutrino RTOS offers the determinism only a real-time OS can provide. Techniques such as adaptive partitioning guarantee critical processes get the cycles they need to complete their tasks on time, while maintaining the performance your complex embedded systems require.
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    TinyOS

    TinyOS

    TinyOS

    TinyOS is an open source, BSD-licensed operating system designed for low-power wireless devices, such as those used in sensor networks, ubiquitous computing, personal area networks, smart buildings, and smart meters. A worldwide community from academia and industry use, develop, and support the operating system as well as its associated tools, averaging 35,000 downloads a year. The transition to hosting at GitHub is now complete. Part of this transition includes slowly retiring TinyOS development mailing lists for bug tracking and issues to using the GitHub trackers. Thanks to all of the developers who are now improving TinyOS and requesting pulls!
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    Enea OSE
    Enea OSE is a robust, high-performance, a real-time operating system optimized for multi-processor systems requiring true deterministic real-time behavior and high availability. It shortens development time, enhances reliability and reduces lifetime maintenance costs for a wide range of systems, from wireless devices and automobiles to medical instruments and telecom infrastructure. Enea OSE is optimized for communication and control systems requiring high performance and hard real-time characteristics. It is deployed extensively in the areas of telecom networking systems, wireless devices, industrial automation, medical equipment, automotive and transportation equipment, as well as other embedded systems. The twice award-winning design of the Enea OSE multicore kernel provides the ease-of-use of Symmetric Multi-Processing (SMP) together with the scalability and determinism of Asymmetric Multi-Processing (AMP) and the performance of bare metal.
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    Android Things
    Android Things lets you experiment with building devices on a trusted platform, without previous knowledge of embedded system design: Develop using the Android SDK and Android Studio, access hardware such as displays and cameras natively through the Android framework, use the Android Things Console to push over-the-air feature and security updates. Android Things enables you to build apps on top of popular hardware platforms like the Raspberry Pi 3. The Board Support Package (BSP) is managed by Google, so no kernel or firmware development is required. Software images are built and delivered to devices through the Android Things Console. This gives you a trusted platform to develop on with standard updates and fixes from Google.
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    Fuschia OS

    Fuschia OS

    Fuschia

    Fuchsia is a new open source operating system created at Google that is currently under active development. We are building Fuchsia from the kernel up to meet the needs of today’s growing ecosystem of connected devices. Fuchsia is still evolving rapidly, but the underlying principles and values of the system have remained relatively constant throughout the project. The core architectural principles guiding Fuchsia’s design and development are: secure, updatable, inclusive, and pragmatic. A core set of architectural principles - secure, updatable, inclusive, pragmatic - guides Fuchsia's design and development. As an inclusive, open source community, Fuchsia welcomes high-quality, well-tested contributions from all. While there are frameworks proposed to guide its design, Fuchsia is a work in progress. With community contributions and ongoing development, Fuchsia will change over time to meet the evolving needs of developers, manufacturers, and consumers.
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    RTX

    RTX

    Arm

    The Keil RTX is a royalty-free, deterministic real-time operating system designed for ARM and Cortex-M devices. It allows you to create programs that simultaneously perform multiple functions and helps to create applications which are better structured and more easily maintained. Royalty-free, deterministic RTOS with source code. While it is certainly possible to create real-time programs without an RTOS (by executing one or more functions in a Super-loop), there are numerous scheduling, maintenance, and timing issues that an RTOS like the Keil RTX solves for you. For a more detailed comparison between RTOS and Super-loop, take a look at the advantages of using an RTOS. High-Speed real-time operation with low interrupt latency. Small footprint for resource constrained systems. Unlimited number of tasks each with 254 priority levels. Unlimited number of mailboxes, semaphores, mutex, and timers. Support for multithreading and thread-safe operation.
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    µ-velOSity RTOS

    µ-velOSity RTOS

    Green Hills Software

    The µ-velOSity RTOS is the smallest of Green Hills Software's family of real-time operating systems. Implemented as a C library, it can be easily ported to a number of target architectures. It has a streamlined design and is tightly integrated with the MULTI IDE, making µ-velOSity both easy-to-learn and simple-to-use. µ-velOSity offers a clear, concise API that reduces development time and improves product maintainability. As a result, you can cut costs and speed time-to-market. For developers moving from standalone or no-OS configurations. With its efficient design and minimal footprint, µ-velOSity fits better in on-chip memory than competing products. Eliminating the need to access off-chip memory dramatically increases execution speed. µ-velOSity was designed to minimize the number of CPU clock cycles needed to boot, which is critical in embedded devices that require extremely fast boot times. µ-velOSity is also the ideal RTOS for embedded devices with stringent power requirements.
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    balenaOS

    balenaOS

    balena

    Containers will revolutionize connected devices, and balenaOS is the best way to run them. Made to survive harsh networking conditions and unexpected shutdowns. A minimal Linux with the services needed to run Docker reliably on an embedded device - nothing else. Based on Yocto Linux for easy porting to most capable device types across varied CPU architectures. Actively developed in the open; community participation warmly welcomed. In our quest to build balenaCloud, a platform that brings the tools of modern software development to the world of connected hardware, we started by porting Docker to ARM chips in 2013. We soon realised that we also needed an operating system optimized for the use case: a minimal OS ideal for running containers on embedded devices.
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    SAFERTOS

    SAFERTOS

    WITTENSTEIN high integrity systems

    SAFERTOS® is a pre-certified safety Real Time Operating System (RTOS) for embedded processors. It delivers superior performance and pre-certified dependability, whilst utilizing minimal resources. SAFERTOS® is tailored to your specific processor/compiler combination, and delivered with full source code and our Design Assurance Pack (DAP) . The DAP gives you complete transparency over the full Design Life Cycle, and illustrates the exceptional high quality of our RTOS product. Using our extensive Safety Critical design experience we have made certifying SAFERTOS® integrated within a product an easy and hassle-free process. SAFERTOS® has been designed specifically for the safety sector, and deterministic priority based scheduling is the primary Safety Requirement. Every effort has been made to ensure deterministic behaviour is maintained.
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    embOS

    embOS

    SEGGER

    embOS is a priority-controlled RTOS (real-time operating system). It is designed to be the foundation for developing embedded applications and is continually developed since 1992. embOS is available for all popular cores, compilers and development tools and has been deployed in several billion devices in a range of application areas. Since 1992, embOS has been the preferred RTOS choice for engineers in the embedded market. It offers ease-of-use and guarantees 100% deterministic real-time operation for any embedded device. This real-time operating system is highly portable and fully source-compatible on all platforms, making it easy to port applications to different cores. Tasks can easily be created and safely communicate with each other, using communication mechanisms such as semaphores, mailboxes, and events. The real-time operating system is free for any non-commercial use like education and evaluation, without any technical limitation.
    Starting Price: $1,300 one-time payment
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    Flojoy

    Flojoy

    Flojoy

    Within 5 minutes of downloading Flojoy Studio, you'll be building and running powerful Python-based engineering and AI apps - all without any coding knowledge. Engineers use Flojoy Studio to stream measurements from robotics, microcontrollers, single board computers, test stations, and benchtop instruments to Flojoy Cloud. Once in Flojoy Cloud, this research data can be analyzed, archived, downloaded, and annotated by team members. Flojoy is the de facto resource for open-source instrument control in Python. Flojoy is on a mission to support every major motion platform (robotic arms, stepper motors, servos, linear actuators, pneumatics, and more) with first-class and open-source Python support.
    Starting Price: $150 per month
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    Raspberry Pi OS

    Raspberry Pi OS

    Raspberry Pi Foundation

    Raspberry Pi Imager is the quick and easy way to install Raspberry Pi OS and other operating systems to a microSD card, ready to use with your Raspberry Pi. Watch our 45-second video to learn how to install an operating system using Raspberry Pi Imager. Download and install Raspberry Pi Imager to a computer with an SD card reader. Put the SD card you'll use with your Raspberry Pi into the reader and run Raspberry Pi Imager. Browse a range of operating systems provided by Raspberry Pi and by other organisations, and download them to install manually.
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    Deos

    Deos

    DDC-I

    Deos™, DDC-I’s safety-critical time and space partitioned real-time operating system (RTOS) that has been verified to the guidance of DO-178C/ED-12C Design Assurance Level A (DAL A) for Avionics Applications, supports ARINC 653 APEX, rate monotonic scheduling (RMS), and is targeted at the FACE Safety Base Profile. It has been field proven as a safety-critical RTOS since its first verification and audit to DAL A by Transport Canada in 1998, and it has been certified and is flying in 10’s of thousands of aircraft. Since the initial verification, it has continually evolved throughout the last two decades with new processors and features in subsequent baselines, and it has been successfully audited by the world’s various governmental certification authorities (FAA, ENAC, JAA, EASA, CAAC, and others) and airframe and Avionics Supplier Designated Engineering Representatives (DERs).
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    ZoomEye

    ZoomEye

    ZoomEye

    ZoomEyeis the leader of global cyberspace mapping, China's first and world-renowned cyberspace search engine driven by 404 Laboratory of Knownsec, and also a world-famous cyberspace search engine. Through a large number of global surveying and mapping nodes, according to the global IPv4, IPv6 address and website domain name databases,it can continuously scan and identify multiple service port and protocols 24 hours a day, and finally map the whole or local cyberspace. Through years of continuous technological transformation, ZoomEye has independently developed its own core search engine of cyberspace leading the world in cyberspace surveying and mapping, continuously accumulated a large amount of surveying and mapping data for trend analysis, and dynamically mapped cyberspace across time and space. To keep ZoomEye being a world-leading search engine of cyberspace surveying and mapping, we have been working hard!
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    QuEST

    QuEST

    QuEST

    The Quantum exact simulation toolkit is a high-performance simulator of quantum circuits, state-vectors and density matrices. QuEST uses multithreading, GPU acceleration and distribution to run lightning first on laptops, desktops and networked supercomputers. QuEST just works; it is stand-alone, requires no installation, and is trivial to compile and get running. QuEST has no setup; it can be downloaded, compiled and run in a matter of seconds. QuEST has no external dependencies and compiles natively on Windows, Linux and MacOS. Whether on a laptop, a desktop, a supercomputer, a microcontroller, or in the cloud, you can almost always get QuEST running with only a few terminal commands.
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    Windows for IoT
    When you develop with Windows, you join our world-wide partner ecosystem across hardware and software solutions, integrations, and services. Experience our continually evolving feature set, and developer friendly tools, for a smooth device-building experience.​​ Windows IoT provides 10-Year OS Lifecycle Support that is guaranteed with no hidden costs​ through our Long-Term Servicing Channel (LTSC). Windows IoT operating systems support backwards compatibility in line with Microsoft’s application compatibility promise. With Windows IoT you can use Azure services as building blocks to construct customized IoT solutions. Azure provides the industry’s broadest portfolio of cloud services and capabilities according to your needs and with the requirements from your industry. Windows IoT is compatible with any existing device management solution.
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    Green Hills Optimizing Compilers
    As the pace of microprocessor innovation continues to accelerate, application developers know they can rely on Green Hills Compilers to unlock the hardware's full potential and realize maximum performance and functional safety in their next-generation applications. Green Hills Compilers use the most advanced optimizations to maximize your program's performance even within strict size constraints. For example, our CodeFactor™ optimization speeds your program's execution and reduces its size by removing redundant segments of code via subroutine calls and tail merges. Static basing provides the same benefits (faster speed, smaller size) by grouping data items to significantly reduce the number of load address operations. Every one of our optimizations, whether it's our own innovation or an industry standard, is meticulously implemented. Continuing three decades of engineering excellence, we painstakingly research and then test each one against hundreds of benchmarks.
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    MindSphere

    MindSphere

    Siemens

    MindSphere® is the leading industrial IoT as a service solution. Using advanced analytics and AI, MindSphere powers IoT solutions from the edge to the cloud with data from connected products, plants and systems to optimize operations, create better quality products and deploy new business models. Built on the Mendix application platform, MindSphere empowers customers, partners and the Siemens organization to quickly build and integrate personalized IoT applications. Our team of experts is happy to answer your questions and help you get started with MindSphere. Connect assets and upload data to the cloud . Collect, monitor, and analyze data in real-time. Take advantage of apps and solutions that solve real problems. Develop apps that increase the business value of your data. Make use of an open environment for development and operations.
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    MPLAB Code Configurator
    MPLAB® Code Configurator (MCC) is a free, graphical programming environment that generates seamless, easy-to-understand C code to be inserted into your project. Using an intuitive interface, it enables and configures a rich set of peripherals and functions specific to your application. It supports 8-bit, 16-bit and 32-bit PIC® microcontrollers. MCC is incorporated into both the downloadable MPLAB X Integrated Development Environment (IDE) and the cloud-based MPLAB Xpress IDE. Free graphical programming environment. Intuitive interface for quick start development. Automated configuration of peripherals and functions. Minimized reliance upon product datasheet. Reduces overall design effort and time. From novice to expert. Accelerates generation of production ready code. Requiring no downloads, no machine configuration and no waiting, MPLAB Xpress is the easiest way to get started using MCC.
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    Embunit

    Embunit

    Embunit

    Embunit is a unit testing tool for programmers and testers developing software in C or C++. It is aimed at embedded software development, but can be used to create unit tests for any software written in C or C++. Embunit eliminates the mundane, repetitive aspects of writing unit tests, leaving you free to concentrate on defining the test behaviour. This is achieved by specifying a sequence of actions as shown in the example screenshot below. Embunit generates the unit test source code automatically. Embunit has been developed with flexibility in mind, and can be customised to create unit tests for virtually any hardware platform; even the smallest microcontrollers. It is not tied to any specific toolset and is designed to accommodate the common limitations of embedded C++ compilers.
    Starting Price: $131.19 per user