# FreeRTOS Documentation

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 libraries suitable for use across all industry sectors. FreeRTOS is built with an emphasis on reliability and ease of use.

- [FreeRTOS User Guide](/en_us/freertos/latest/userguide/): Provides detailed information about the microcontroller operating system that makes small, low-powered edge devices easy to program, deploy, secure, and maintain.
- [FreeRTOS Porting Guide](/en_us/freertos/latest/portingguide/): Provides detailed information about porting FreeRTOS to a microcontroller platform.
- [FreeRTOS Qualification Guide](/en_us/freertos/latest/qualificationguide/): Provides detailed information about qualifying a microcontroller platform for FreeRTOS.

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