nRF Sniffer

Low cost Bluetooth Smart/Bluetooth low energy packet sniffer


The Nordic nRF Sniffer is an application for viewing Bluetooth® Smart (previously called Bluetooth low energy) communication between 2 Nordic devices using Bluetooth Smart (using technology that adheres to the Bluetooth specification’s Low Energy Core Configuration). nRF Sniffer is a useful tool for learning about, and debugging Bluetooth Smart applications and allows for near real-time display of Bluetooth Smart packets and helps identification and fixing of issues by allowing developers to see what is happening on-air. Additionally, this application allows you to save nRF Sniffer capture files of your application's Bluetooth Smart link which can be sent to Nordic Technical Support allowing for faster resolution of issues by the support engineers.

nRF Sniffer is supported by Nordic's nRF51822 Development and Evaluation kits. The nRF Sniffer application together with Wireshark, a free, open-source protocol analyzer provides a powerful and cost-effective means to analyze Bluetooth Smart communication traffic and events between Nordic devices during the development cycle. There are four components required to use nRF Sniffer for your Bluetooth Smart development. The first three are available here as downloads. The Wireshark application is available from

nRF Sniffer


The nRF Sniffer application comes as pre-compiled firmware. This application is not a replacement for professional grade Bluetooth Smart protocol analyzers, and as such the same level of functionality or stability should not be expected. However nRF Sniffer represents a very useful tool to assist developers in Bluetooth Smart development at a minimal level cost.


See Application Engineer, Hung Bui present the nRF Sniffer



  • Near real-time display of Bluetooth Smart packets
  • Powerful display filers and search available through Wireshark
  • Learn more about Bluetooth Smart using the nRF Sniffer
  • Debug your application's Bluetooth Smart connection using the nRF Sniffer
  • Get faster support from Nordic when you provide sniffer traces for Bluetooth Smart issues
  • Python API for nRF Sniffer for automation and flexibility



  • nRF Sniffer firmware for nRF51822
  • nRF51822 Development or Evaluation kit
  • nRF Sniffer PC software (Windows 7 or later)
  • Wireshark protocol analyzer application version 1.10.x only (Windows 7 or later)

Supported products/complementary

Product Brief Description
nRF51822 Bluetooth Smart and 2.4GHz proprietary multiprotocol SoC
nRF51422 ANT and ANT/Bluetooth Smart multiprotocol SoC

Ordering codes



PC software
To aid your product development, Nordic also offers a range of tools enabling you to interact with and monitor your product


Code Name Version
nRF-Sniffer nRF Sniffer (First Production release) - PC Software and Device Firmware that allow you to see all Bluetooth low energy packets on the air between two devices. 1.0.1

User Guides

Code Name Version
nRF-Sniffer-UG nRF Sniffer User Guide 1.1