Hotjar - The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!

TrackIR - TrackIR adds depth to the PC gaming experience by enabling players to take control of the in-game view.

Tobii Pro Lab - Eye tracking software for behavior research. Combination with other physiological data while you design, execute, and analyze with heat maps, gaze plots.

linux-track - Linuxtrack is a software bringing headtracking to Linux and Mac OS X.

GazeRecorder - Our technology turns a simple webcam into a Accurate Eye-Tracker. The fast & visual way to understand user behavior. Cloud Eye-Tracking Insights Platform.

VSeeFace - VSeeFace is a free, highly configurable face and hand tracking VRM and VSFAvatar avatar puppeteering program for virtual youtubers with a focus on robust tracking and high image quality