A Small, Scalable Open Source RTOS for IoT Embedded Devices

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.
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Connectivity

Connectivity protocols optimized for resource constrained devices

Open Source

Neutrally governed, established and proven development model

Flexible

Deliver security features for resource constrained devices

Customizable

Developers can customize for their device needs

Apache 2.0

Permissively licensed

Secure

Developed with security in mind

21,310
Commits
286
Authors
20
Repositories
4255
Pull Requests Closed

As of Release 1.12.0 (June 2018)

Community Tools

What's New

Blog

Highlights from LC3 and the IoT China Meetup

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The Zephyr Project is committed to supporting our community and creating opportunities for our developers and members to share their work and evangelize the project within the the larger open…

The Zephyr Project Announces OpenThread as the First Thread Protocol Implementation to Integrate with Zephyr™ RTOS

| Announcements, News | No Comments
A demo of the protocol stack will be on display at Embedded World NURNBERG, GERMANY – February 26, 2018 – The Zephyr™ Project, an open source collaborative effort to build…

Events

Aug 29

Open Source Summit

August 29, 2018 - August 31, 2018

Find out more about Zephyr Project

Videos, presentations, demos, and more

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