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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 12.9k 7.8k

  2. west west Public

    West, Zephyr's meta-tool

    Python 277 142

  3. example-application example-application Public template

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

    C 287 172

  4. sdk-ng sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    C 217 160

  5. docker-image docker-image Public

    Docker image suitable for Zephyr development and CI

    Shell 188 102

  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.

    32 8

Repositories

Showing 10 of 167 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 12,858 Apache-2.0 7,760 2,121 (25 issues need help) 1,022 Updated Aug 10, 2025
  • picolibc Public Forked from picolibc/picolibc

    picolibc - a C library designed for embedded 32- and 64- bit systems.

    zephyrproject-rtos/picolibc’s past year of commit activity
    C 5 GPL-2.0 228 0 2 Updated Aug 10, 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 54 Apache-2.0 67 3 7 Updated Aug 10, 2025
  • hal_nxp Public

    HAL module for NXP SoCs

    zephyrproject-rtos/hal_nxp’s past year of commit activity
    C 36 157 0 12 Updated Aug 8, 2025
  • hal_nordic Public
    zephyrproject-rtos/hal_nordic’s past year of commit activity
    C 35 136 0 13 Updated Aug 8, 2025
  • sdk-ng Public

    Zephyr SDK (Toolchains, Development Tools)

    zephyrproject-rtos/sdk-ng’s past year of commit activity
    C 217 Apache-2.0 160 44 9 Updated Aug 8, 2025
  • gcc Public Forked from gcc-mirror/gcc

    GCC source for building Zephyr SDK

    zephyrproject-rtos/gcc’s past year of commit activity
    C++ 4 GPL-2.0 4,665 0 5 Updated Aug 8, 2025
  • hal_renesas Public

    HAL for Renesas devices

    zephyrproject-rtos/hal_renesas’s past year of commit activity
    C 5 15 0 8 Updated Aug 8, 2025
  • CMSIS_6 Public Forked from ARM-software/CMSIS_6

    CMSIS version 6 (successor of CMSIS_5)

    zephyrproject-rtos/CMSIS_6’s past year of commit activity
    C 0 Apache-2.0 112 0 0 Updated Aug 7, 2025
  • cmsis-dsp Public Forked from ARM-software/CMSIS-DSP

    CMSIS-DSP embedded compute library for Cortex-M and Cortex-A

    zephyrproject-rtos/cmsis-dsp’s past year of commit activity
    C 4 Apache-2.0 191 0 0 Updated Aug 7, 2025