HeyPhoto is a free online tool that uses artificial intelligence to edit and enhance facial features in photos. Users can adjust various features like gaze direction, skin tone, age, hair style, and gender. The tool can also anonymize faces for privacy and create photorealistic headshots with Face Generator. HeyPhoto is intuitive and requires no special skills to use. It is recommended to use quality photos with people directly facing the camera for better results. The resulting images can be downloaded with a watermark for free, or without a watermark for a fee.