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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 298 146

  3. example-application example-application Public template

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

    C 316 204

  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 212 108

  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 13,878 Apache-2.0 8,351 2,219 (26 issues need help) 1,144 Updated Dec 9, 2025
  • hal_nordic Public
    zephyrproject-rtos/hal_nordic’s past year of commit activity
    C 34 142 0 8 Updated Dec 9, 2025
  • hostap Public

    Zephyr repository tracking https://w1.fi/cgit/hostap/

    zephyrproject-rtos/hostap’s past year of commit activity
    C 4 24 0 2 Updated Dec 9, 2025
  • zephyrproject-rtos/trusted-firmware-m’s past year of commit activity
    C 41 64 0 2 Updated Dec 9, 2025
  • hal_espressif Public

    HAL and SDK for ESP32 and other hardware from Espressif

    zephyrproject-rtos/hal_espressif’s past year of commit activity
    C 56 Apache-2.0 69 3 4 Updated Dec 9, 2025
  • psa-arch-tests Public Forked from ARM-software/psa-arch-tests

    Tests for verifying implementations of TBSA-v8M and the PSA Developer APIs

    zephyrproject-rtos/psa-arch-tests’s past year of commit activity
    C 1 Apache-2.0 118 0 0 Updated Dec 9, 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 1 Updated Dec 9, 2025
  • infrastructure Public

    Zephyr Project Infrastructure Management

    zephyrproject-rtos/infrastructure’s past year of commit activity
    HCL 1 10 31 2 Updated Dec 9, 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 8, 2025
  • mcuboot Public Forked from mcu-tools/mcuboot

    Secure boot for 32-bit Microcontrollers!

    zephyrproject-rtos/mcuboot’s past year of commit activity
    C 32 Apache-2.0 862 0 0 Updated Dec 8, 2025