.NET Standard 2.0
dotnet add package Tobii.Research.x64 --version
NuGet\Install-Package Tobii.Research.x64 -Version
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Tobii.Research.x64" Version="" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Tobii.Research.x64 --version
#r "nuget: Tobii.Research.x64,"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Tobii.Research.x64 as a Cake Addin
#addin nuget:?package=Tobii.Research.x64&version=

// Install Tobii.Research.x64 as a Cake Tool
#tool nuget:?package=Tobii.Research.x64&version=

Tobii Pro SDK

Welcome to the Tobii Pro SDK for .net developers. It allows easy access to configuration and data streams from Tobii Pro screen based eye trackers such as Tobii Pro Spectrum, Tobii Pro Fusion and Tobii Pro Nano, but also older trackers such as Tobii TX300 and Tobii Pro X2/X3, a comprehensive guide of supported devices is available here.


The usage of the Tobii Pro SDK is handled by the Tobii Software Development License Agreement.


Your project needs to target one of the following:

  • .NET Framework 4.6.1 or later
  • .NET 5.0 or later
  • .NET Core 2.0 or later


The easiest way to get started is to use the NuGet package for Tobii Pro SDK

You can install using NuGet like this:

nuget install Tobii.Research.x64

Or select it from the NuGet packages UI on Visual Studio.

Alternatively, you can download it directly.


The documentation for the Tobii Pro SDK is available at The documentation site has reference documentation for all language bindings of the SDK (there are also python, matlab, c/c++ bindings). For .NET developers, the following sections are most relevant:


Here are some quick samples to get you started:

Finding all eye trackers

var eyeTrackers = EyeTrackingOperations.FindAllEyeTrackers();
            foreach (var eyeTracker in eyeTrackers)
                Console.WriteLine($"{eyeTracker.Address}, {eyeTracker.DeviceName}, {eyeTracker.Model}, {eyeTracker.SerialNumber}");

Subscribe to gaze:

        private void SubscribeGazeData(IEyeTracker eyeTracker)
            // Start listening to gaze data.
            eyeTracker.GazeDataReceived += EyeTracker_GazeDataReceived;
            // Wait for some data to be received.
            // Stop listening to gaze data.
            eyeTracker.GazeDataReceived -= EyeTracker_GazeDataReceived;

        private void EyeTracker_GazeDataReceived(object sender, GazeDataEventArgs e)
            if (e.leftEye.GazePoint.Validity == Validity.Valid)
                var left = e.LeftEye.GazePoint.PositionOnDisplayArea;
                Console.WriteLine($"Left gaze: ({left.X}, {right.Y)");
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
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Compatible target framework(s)
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  • .NETStandard 2.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Tobii.Research.x64:

Package Downloads

A simplified driver library for Tobii screen-based eye trackers. Requires x64 CPU.

GitHub repositories

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