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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 14.3k 8.6k

  2. west west Public

    West, Zephyr's meta-tool

    Python 305 149

  3. example-application example-application Public template

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

    C 328 212

  4. sdk-ng sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    C 250 182

  5. docker-image docker-image Public

    Docker image suitable for Zephyr development and CI

    Shell 215 114

  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.

    55 12

Repositories

Showing 10 of 172 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 14,322 Apache-2.0 8,574 2,198 (24 issues need help) 1,222 Updated Jan 30, 2026
  • bluetooth-qualification Public

    Repository with Bluetooth Qualification evidence

    zephyrproject-rtos/bluetooth-qualification’s past year of commit activity
    2 1 0 0 Updated Jan 30, 2026
  • hal_nxp Public

    HAL module for NXP SoCs

    zephyrproject-rtos/hal_nxp’s past year of commit activity
    C 45 166 0 3 Updated Jan 30, 2026
  • hal_nordic Public
    zephyrproject-rtos/hal_nordic’s past year of commit activity
    C 38 145 0 9 Updated Jan 30, 2026
  • awesome-zephyr-rtos Public Forked from golioth/awesome-zephyr-rtos

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

    zephyrproject-rtos/awesome-zephyr-rtos’s past year of commit activity
    55 Apache-2.0 30 0 1 Updated Jan 30, 2026
  • hal_espressif Public

    HAL and SDK for ESP32 and other hardware from Espressif

    zephyrproject-rtos/hal_espressif’s past year of commit activity
    C 59 Apache-2.0 72 3 6 Updated Jan 29, 2026
  • sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    zephyrproject-rtos/sdk-ng’s past year of commit activity
    C 250 Apache-2.0 182 54 12 Updated Jan 29, 2026
  • hal_silabs Public
    zephyrproject-rtos/hal_silabs’s past year of commit activity
    C 10 83 0 5 Updated Jan 29, 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 15 0 0 Updated Jan 29, 2026
  • hal_renesas Public

    HAL for Renesas devices

    zephyrproject-rtos/hal_renesas’s past year of commit activity
    C 9 19 0 9 Updated Jan 29, 2026