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This repository has been archived by the owner on Jan 17, 2023. It is now read-only.


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nRF Util

No Maintenance Intended Latest version License


This tool is deprecated. The feature set in this tool is available through a new tool with the same name. If you need the feature set in this version, please install the new nrfutil from the official page.


nRF Util is a Python package and command-line utility that supports Device Firmware Updates (DFU) and cryptographic functionality.



See the InfoCenter pages for information on how to install and use nRF Util.


Please report issues on the DevZone portal.


Feel free to propose changes by creating a pull request.

If you plan to make any non-trivial changes, please start out small and ask seek an agreement before putting too much work in it. A pull request can be declined if it does not fit well within the current product roadmap.

In order to accept your pull request, we need you to sign our Contributor License Agreement (CLA). You will see instructions for doing this after having submitted your first pull request.


See the LICENSE file for details.