Pupil: A (Somewhat Technical) Eye-Tracking Software

© IFB-Stiftung, Logo from Pupil

• Website: https://github.com/pupil-labs/pupil
• Type: Software and Hardware, Wearable Eye-Tracking
• Cost: Software is free. Hardware must be built.
• License: Open-Source (LGPL-3.0, GPL-3.0)

Pupil is an eye-tracking software that requires a camera, ideally an infrared camera, placed in front of the eye. The software’s technical user interface presents a steep learning curve, but those who push through it can achieve highly reliable tracking results.