Accelerate your design success with a real-time operating system, TCP/IP and USB stacks provided by NXP® MQX™ RTOS. Available on NXP processors, NXP MQX RTOS offer a straightforward API with a modular architecture, making it simple to fine tune custom applications and scalable to fit most requirements. The combination of market-proven NXP MQX RTOS and silicon portfolio provides a streamlined and powerful platform by creating a comprehensive source for hardware, software, tools and services needs.

NXP MQX RTOS a full-featured real-time operating system including the MQX Kernel, TCP/IP stack (RTCS), embedded MS-DOS file system (MFS), USB host/device stack, and more. The MQX multitasking kernel provides pre-emptive scheduling, fast interrupt response, extensive inter-process communication and synchronization facilities. MQX RTOS includes its own peripheral drivers.

Proven and Widely Used

Shipped in millions of products for more than 25 years, NXP MQX™ Software Solutions continue to be a popular choice for embedded designers looking for a rock-solid software platform to enable their deterministic and connected designs.

Light on Memory, yet Scalable

MQX Software Solutions require only a small number of core components, thus enabling memory-efficient applications. However, if more sophisticated application features are what you need, MQX can scale with the addition of optional lightweight or fully-featured components.

MQX RTOS v5 - A Continued Roadmap

Active development of the MQX RTOS continues by NXP with MQX v5. With new commercial licensing, customers can use MQX v5 for designs with the latest Kinetis® and i.MX devices. See a summary of features below and send your feedback to

IPv6 Stack for MQX RTOS

Get ready for the worldwide transition to the next generation of the Internet (IPv6), with the new IPv6 extension for MQX Real Time TCP/IP Communication Suite (RTCS). This optional IPv6 add-on is included with MQX v5 and extends the RTCS TCP/IP stack to enable single and dual stack operation (IPv4 + IPv6) to ease your transition to IPv6. Learn more.

Professional Support for MQX RTOS

Get a variety of support options to fit your design needs. Our Commercial support provides customers a dedicated private support portal, priority response times, and more. Get support now.

MQX Feature Chart

MQX v5
Features Same complete MQX Classic solution with new features added (including IPv6), and new MCU and MPU device support.
Have a suggested feature? Request it!
Supported devices Ongoing support for Kinetis and i.MX device roadmaps and select devices also covered by MQX Classic. Other processors available on request
Need specific device support? Request it!
Support and Maintenance
Price One-time License fee starting at $6,000 USD. Annual maintanance options. Royalty-free. See MQX v5 for details.

Training & Events

Featured Software

Featured Videos

View all videos