FreeRTOS™
Real-time operating system for microcontrollers and small microprocessors
FreeRTOS is a market-leading embedded system RTOS supporting 40+ processor architectures with a small memory footprint, fast execution times, and cutting-edge RTOS features and libraries including Symmetric Multiprocessing (SMP), a thread-safe TCP stack with IPv6 support, and seamless integration with cloud services. It’s open-source and actively supported and maintained.
Introducing ARMv8.1-M PACBTI Support
The Armv8.1-M architecture enhances security with Pointer Authentication and Branch Target Identification (PACBTI), building on TrustZone, MPU, and PXN to protect firmware, enforce privilege rules, and mitigate ROP/JOP attacks.
Learn morePercepio View for FreeRTOS
Free tracing tool for FreeRTOS applications, based on Percepio Tracealyzer.
Learn moreThe Design of FreeRTOS-Plus-TCP: Part 1 - The Big Picture
FreeRTOS-Plus-TCP has been a popular TCP/IP stack for embedded systems for many years. This blog series will provide a deep dive into FreeRTOS-Plus-TCP (v4.x.x), breaking down its architecture and inner workings into digestible pieces.
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Why use FreeRTOS
Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of 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 by world-leading companies as the de facto standard for microcontrollers and small microprocessors.
Accelerate time
With detailed pre-configured demos and Internet of Things (IoT) reference integrations, there is no need to determine how to setup a project. Quickly download, compile, and get to market faster.
Support for 40+ architectures
One code base for40+ MCU architectures and 15+ toolchains, including the latest RISC-V and ARMv8-M (Arm Cortex-M33) microcontrollers
Broad partnership
Ourpartner ecosystem provides a breadth of options including community contributions, professional support, as well as integrated IDE and productivity tools.
Open source
Open source for 20 years, FreeRTOS can be used for any purpose under itsMIT license. Our strategic partner also providescommercial licenses, and safetycertification.
Long term support
FreeRTOS offers feature stability withlong term support (LTS) releases. FreeRTOS LTS libraries come with security updates and critical bug fixes for two years. Maintained by AWS for the benefit of the FreeRTOS community.
Partners
FreeRTOS partners with companies and organizations providing Instruction Set Architectures (ISA) and Intellectual Property (IP) to semiconductor firms. FreeRTOS Kernel Ports align with architectures to provide broad ecosystem support.
FreeRTOS community
Stay on top of the new releases, features, and events
Richard Barry • Sep 15, 2023Refactoring FreeRTOS for the next 20 years
In this talk, we will explore the next 20 years with Amazon's involvement, including the technical roadmap, today's design, and distribution philosophy.
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Richard Barry • Mar 23, 2021Using future-proofed Microcontroller Designs with FreeRTOS
In this session, discover how to overcome challenges in development acceleration while ensuring firmware integrity and longevity, how that ties into Long Term Support releases, and what that means for an open source project in development for more than 15 years.
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Dedicated team support
With our team of experts by your side, you'll never have to go it alone on your journey to success. Our team is dedicated to providing you with the support, guidance, and resources you need to achieve your goals, no matter how big or small. From one-on-one coaching and personalized advice, to access to a community of like-minded individuals, we've got you covered.