Skip to content
@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:

Pinned Loading

  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 13.2k 7.9k

  2. west west Public

    West, Zephyr's meta-tool

    Python 283 144

  3. example-application example-application Public template

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

    C 299 179

  4. sdk-ng sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    C 227 165

  5. docker-image docker-image Public

    Docker image suitable for Zephyr development and CI

    Shell 197 103

  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.

    36 8

Repositories

Showing 10 of 170 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 13,159 Apache-2.0 7,944 2,113 (23 issues need help) 1,074 Updated Sep 24, 2025
  • test_results Public

    Consolidated test results

    zephyrproject-rtos/test_results’s past year of commit activity
    Python 8 12 80 2 Updated Sep 24, 2025
  • hal_renesas Public

    HAL for Renesas devices

    zephyrproject-rtos/hal_renesas’s past year of commit activity
    C 7 17 0 10 Updated Sep 24, 2025
  • hal_nxp Public

    HAL module for NXP SoCs

    zephyrproject-rtos/hal_nxp’s past year of commit activity
    C 37 158 0 11 Updated Sep 23, 2025
  • hal_stm32 Public

    STM32Cube packages for Zephyr

    zephyrproject-rtos/hal_stm32’s past year of commit activity
    C 133 143 0 8 Updated Sep 23, 2025
  • west Public

    West, Zephyr's meta-tool

    zephyrproject-rtos/west’s past year of commit activity
    Python 283 Apache-2.0 144 44 (2 issues need help) 9 Updated Sep 23, 2025
  • zephyr-testing Public

    Test Repo, Do not clone! Use zephyr repo instead

    zephyrproject-rtos/zephyr-testing’s past year of commit activity
    C 16 Apache-2.0 25 1 9 Updated Sep 23, 2025
  • zephyrproject-rtos/Kconfiglib’s past year of commit activity
    Python 19 ISC 12 4 8 Updated Sep 23, 2025
  • infrastructure Public

    Zephyr Project Infrastructure Management

    zephyrproject-rtos/infrastructure’s past year of commit activity
    HCL 1 6 29 1 Updated Sep 23, 2025
  • 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 299 Apache-2.0 179 0 2 Updated Sep 23, 2025