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@zephyrproject-rtos

Zephyr Project

The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on resource-constrained systems: from simple embedded environmental sensors and LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM Cortex-M, Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V, and a large number of supported boards.

Getting Started

Welcome to Zephyr! See the Introduction to Zephyr for a high-level overview, and the documentation's Getting Started Guide to start developing.

Community Support

Community support is provided via mailing lists and Discord; see the Resources below for details.

Resources

Here's a quick summary of resources to help you find your way around:

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  1. zephyr zephyr Public

    Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

    C 14.1k 8.5k

  2. west west Public

    West, Zephyr's meta-tool

    Python 304 146

  3. example-application example-application Public template

    Example out-of-tree application that is also a module

    C 321 209

  4. sdk-ng sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    C 246 180

  5. docker-image docker-image Public

    Docker image suitable for Zephyr development and CI

    Shell 214 111

  6. awesome-zephyr-rtos awesome-zephyr-rtos Public

    Forked from golioth/awesome-zephyr-rtos

    🪁 A curated list of awesome projects and resources for the Zephyr RTOS project.

    52 11

Repositories

Showing 10 of 171 repositories
  • zephyr Public

    Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

    zephyrproject-rtos/zephyr’s past year of commit activity
    C 14,124 Apache-2.0 8,485 2,225 (27 issues need help) 1,275 Updated Jan 9, 2026
  • sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    zephyrproject-rtos/sdk-ng’s past year of commit activity
    C 246 Apache-2.0 180 52 11 Updated Jan 9, 2026
  • crosstool-ng Public Forked from crosstool-ng/crosstool-ng

    Zephyr fork of crosstool-NG - for building Zephyr GNU toolchains

    zephyrproject-rtos/crosstool-ng’s past year of commit activity
    Shell 5 744 0 2 Updated Jan 9, 2026
  • hal_atmel Public
    zephyrproject-rtos/hal_atmel’s past year of commit activity
    C 13 43 0 2 Updated Jan 9, 2026
  • example-application Public template

    Example out-of-tree application that is also a module

    zephyrproject-rtos/example-application’s past year of commit activity
    C 321 Apache-2.0 209 0 2 Updated Jan 8, 2026
  • percepio Public Forked from percepio/percepio

    Repository containing all open source Percepio projects. TraceRecorder is software for tracing real-time applications. DFM is the target source code for DevAlert.

    zephyrproject-rtos/percepio’s past year of commit activity
    C 0 13 0 0 Updated Jan 8, 2026
  • zephyrproject-rtos/trusted-firmware-m’s past year of commit activity
    C 42 69 0 2 Updated Jan 8, 2026
  • hal_nxp Public

    HAL module for NXP SoCs

    zephyrproject-rtos/hal_nxp’s past year of commit activity
    C 44 166 0 10 Updated Jan 8, 2026
  • infrastructure Public

    Zephyr Project Infrastructure Management

    zephyrproject-rtos/infrastructure’s past year of commit activity
    HCL 1 10 31 1 Updated Jan 7, 2026
  • hal_nuvoton Public

    HAL module for Nuvoton ICs

    zephyrproject-rtos/hal_nuvoton’s past year of commit activity
    C 3 14 0 0 Updated Jan 7, 2026