Nefarius.Utilities.Bluetooth

August 5, 2026 · View on GitHub

Utility library for unconventional Bluetooth tasks on Windows.

Important

This project is still evolving, so API-breaking changes might occur each update!

About

This is a collection of utility classes using undocumented Windows APIs to achieve wireless greatness! Ever needed a simple method of enabling or disabling Bluetooth without all that UWP and Store App nonsense? Wanna dive into modifying SDP records on your machine? This ever-growing library will provide the tools without any bloated dependencies! Enjoy and use responsibly! 😃

Documentation

Link to API docs.

Generating documentation

dotnet build -c:Release
dotnet tool install --global Nefarius.Tools.XMLDoc2Markdown
xmldoc2md .\bin\net9-windows\Nefarius.Utilities.Bluetooth.dll .\docs\

Examples

Check for radio availability

// gives you 'true' if a radio is available (enabled or disabled) 
bool isAvailable = HostRadio.IsAvailable;
// gives you 'true' if a radio is enabled (and therefore implicitly available)
bool isEnabled = HostRadio.IsEnabled;
// gives you 'true' if a radio is available and enabled
bool isOperable = HostRadio.IsOperable;

Turn Bluetooth On, Off or Restart it

Turn on:

using var radio = new HostRadio();
radio.EnableRadio();

Turn off:

using var radio = new HostRadio();
radio.DisableRadio();

Restart/reload (soft):

using var radio = new HostRadio();
radio.RestartRadio();

Restart the radio bus device (USB port cycle; requires administrative privileges):

HostRadio.RestartRadioDevice();

Disconnect a remote device

using var radio = new HostRadio();
radio.DisconnectRemoteDevice("MAC address");