nRF5 Command Line ToolsDesktop tool

Cross-platform desktop software for nRF51 and nRF52 Series development

The nRF5 Command Line Tools are used for development, programming and debugging of Nordic Semiconductor's nRF51 and nRF52 Series SoCs.

• 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 and nRF52 seriers devices and lets developers create their own development tools using the DLLs API.
• SEGGER J-Link software and documentation pack (only included in the Windows installer)

The nrfjprog utility is developed for use together with SEGGER debuggers, so the SEGGER software must also be installed. It is recommended to install the SEGGER version provided with this package which has been tested and verified to work. The SEGGER software is included in the Windows installer, but must be installed manually for Linux and macOS. Documentation for this available from SEGGER.

Available platforms:
• Windows
• Linux
• macOS


Key features
Flash Utility
nRF51 and nRF52 series
.HEX file merging
Create own tools
Through DLL API
Click to download latest

Download nRF5 Command line tools, latest version

Choose platform and version

Choose your Desktop platform and select version (latest released version recommended)

Selected version

9.8.1 Win32