FreeRTOS is a market-leading real-time operating system (RTOS) for microcontrollers and small microprocessors. Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of IoT libraries suitable for use across all industry sectors. FreeRTOS is built with an emphasis on reliability and ease of use.

Trusted kernel

With proven robustness, tiny footprint, and wide device support, the FreeRTOS kernel is trusted as the de facto standard for microcontrollers and small microprocessors.

Broad ecosystem support

The FreeRTOS ecosystem provides a breadth of options including community contributions, professional support, as well as integrated IDE and productivity tools.

Accelerate time to market

With detailed pre-configured demos and Internet of Things (IoT) reference integrations developers can quickly download, compile, and get to market faster.

Predictability of long term support

FreeRTOS offers feature stability with long term support (LTS) releases. FreeRTOS LTS libraries come with security updates and critical bug fixes for two years.

Learn more about Golioth and Free RTOS

Trusted by embedded engineers everywhere

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"We went from product testing to production really fast."

Keenan Johnson
Founder and Executive Director of Ribbit Network
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"Golioth’s SDK and API is extremely simple."

Michael Eatherly
Senior Software Engineer, Ovyl
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"Going with Golioth was an easy business decision."

Eli Thomas
Head of Technology, Method Recycling
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Portrait picture of Keenan Johnson

"We went from product testing to production really fast."

Keenan Johnson
Founder and Executive Director of Ribbit Network
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"An IOT platform
done right!"

Michael Eatherly
Senior Software Engineer, Ovyl
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Portrait picture of Eli Thomas

"Going with Golioth was an easy business decision."

Eli Thomas
Head of Technology, Method Recycling
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