NuttX Alternatives

NuttX is described as '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' and is an app. There are four alternatives to NuttX for Windows, Linux, Mac and BSD. The best NuttX alternative is FreeRTOS, which is both free and Open Source. Other great apps like NuttX are Zephyr, RIOT and embOs.

NuttX iconNuttX
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  • FreeOpen Source
  • ...

NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from...

More about NuttX
NuttX alternatives page was last updated Jun 2, 2025
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  1. FreeRTOS icon
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    FreeRTOS is a real-time operating system kernel for embedded devices that has been ported to 35 microcontrollers. It is distributed under the MIT License.

    License model

    • FreeOpen Source

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux

    FreeRTOS VS NuttX

     
    • FreeRTOS is the most popular Windows, Mac & Linux alternative to NuttX.

    • FreeRTOS is the most popular Open Source & free alternative to NuttX.

    • FreeRTOS is Free and Open SourceNuttX is also Free and Open Source
  2. Zephyr icon
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    Zephyr is a small real-time operating system for connected, resource-constrained devices supporting multiple architectures and released under the Apache License 2.0 backed by the Linux Foundation.

    License model

    • FreeOpen Source

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux

    Zephyr VS NuttX

     
  3. RIOT icon
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    RIOT is a small operating system for networked, memory-constrained systems with a focus on low-power wireless Internet of things (IoT) devices. - Wikipedia

    License model

    • FreeOpen Source

    Platforms

    • BSD

    RIOT Features

    1.  Internet of Things

    RIOT VS NuttX

     
  4. embOs icon
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    embedded Operating System (embOS), is a Real-time operating system, developed by the Company SEGGER Microcontroller. It's designed to be used as a foundation for the development of embedded real-time applications for a wide range of µc.

    License model

    • FreemiumProprietary

    Platforms

    • Windows

    embOs Features

    1.  C++

    embOs VS NuttX

     
4 of 4 NuttX alternatives