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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 13.9k 8.4k

  2. west west Public

    West, Zephyr's meta-tool

    Python 300 146

  3. example-application example-application Public template

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

    C 316 205

  4. sdk-ng sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    C 243 177

  5. docker-image docker-image Public

    Docker image suitable for Zephyr development and CI

    Shell 214 107

  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.

    49 10

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 13,922 Apache-2.0 8,375 2,227 (27 issues need help) 1,172 Updated Dec 15, 2025
  • openthread Public

    openthread module for Zephyr, not a mirror of the official openthread repository

    zephyrproject-rtos/openthread’s past year of commit activity
    C++ 31 BSD-3-Clause 42 0 2 Updated Dec 15, 2025
  • zephyr-testing Public

    Test Repo, Do not clone! Use zephyr repo instead

    zephyrproject-rtos/zephyr-testing’s past year of commit activity
    C 18 Apache-2.0 24 1 6 Updated Dec 15, 2025
  • hal_renesas Public

    HAL for Renesas devices

    zephyrproject-rtos/hal_renesas’s past year of commit activity
    C 7 19 0 10 Updated Dec 15, 2025
  • west Public

    West, Zephyr's meta-tool

    zephyrproject-rtos/west’s past year of commit activity
    Python 300 Apache-2.0 146 45 (2 issues need help) 9 Updated Dec 13, 2025
  • nrf_hw_models Public

    Mirror of https://github.com/BabbleSim/ext_NRF_hw_models/ (PRs or issues should be filed there)

    zephyrproject-rtos/nrf_hw_models’s past year of commit activity
    C 4 14 0 0 Updated Dec 12, 2025
  • hal_realtek Public
    zephyrproject-rtos/hal_realtek’s past year of commit activity
    C 0 Apache-2.0 2 0 0 Updated Dec 12, 2025
  • sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    zephyrproject-rtos/sdk-ng’s past year of commit activity
    C 243 Apache-2.0 177 51 10 Updated Dec 11, 2025
  • arc-qemu Public Forked from foss-for-synopsys-dwc-arc-processors/qemu

    QEMU port for ARCv2 Processors

    zephyrproject-rtos/arc-qemu’s past year of commit activity
    C 0 14 0 0 Updated Dec 11, 2025
  • hal_silabs Public
    zephyrproject-rtos/hal_silabs’s past year of commit activity
    C 10 81 0 3 Updated Dec 11, 2025