Photo Scrubber — local face blur & metadata removal

Simon Willison shared Photo Scrubber, an experimental tool he built with GPT-6 Astra that automatically detects faces in photos and blurs them, avoiding sharing photos that identify strangers' faces. The tool uses Google's MediaPipe C++ library, compiled to WebAssembly via @mediapipe/tasks-vision, and employs the BlazeFace face detection model.