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-A, Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V, SPARC, MIPS, and a large number of supported boards.
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 is provided via mailing lists and Discord; see the Resources below for details.
Here's a quick summary of resources to help you find your way around:
💬 Discord Server for real-time community discussions
📧 User mailing list (users@lists.zephyrproject.org)
📧 Developer mailing list (devel@lists.zephyrproject.org)
📬 Other project mailing lists
📚 Project Wiki
🐛 GitHub Issues
🔒 Security documentation
🛡️ Security Advisories Repository
⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org