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FreeRTOS vs Zephyr Project

People

FreeRTOSEmbedded Systems Development

Zephyr ProjectEmbedded Systems Development

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Price

Free

Embedded Systems Development

Annual estimate10 people, entry price

Free

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Embedded Systems Development

Overview

Focus

Embedded Systems Development

Product

Open source real-time operating system kernel for microcontrollers maintained by Amazon.

Open source real-time operating system for connected resource-constrained devices supported by the Linux Foundation.

Website

Headquarters

Remote

Company size

10,001+ employees

11-50 employees

Founded

2003

2016

Pricing details

Published rate

Free

Free options

Free plan

Source updated

Oct 29, 2026

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