nRF Command Line ToolsDesktop tool

Cross-platform desktop software

The nRF Command Line Tools is used for development, programming and debugging of Nordic Semiconductor's nRF51, nRF52, nRF53 and nRF91 Series devices.


  • nrfjprog executable - tool for programming through SEGGER J-LINK programmers and debuggers
  • mergehex executable - enables you to combine up to three .HEX files into one single file
  • nrfjprog DLL - a DLL that exports functions for programming and controlling nRF51, nRF52, nRF53 and nRF91 Series devices and lets developers create their own development tools using the DLLs API
  • SEGGER J-Link software and documentation pack

Available platforms:

  • Windows
  • Linux
  • macOS

Supports nRF51, nRF52, nRF53 and nRF91 Series

Flash utility

SEGGER J-Link support

HEX file merging

Create your own development tools




Latest news

02 Feb 2023

WaterRower’s S4 Performance Monitor and ComModule employ Ins...

Read More
nRF7002 DK
31 Jan 2023

The nRF7002 complements Nordic’s cellular IoT and multiproto...

Read More
Cellular Tracking Technologies
30 Jan 2023

Cellular Tracking Technologies’ FlickerGPS and FlickerCL emp...

Read More