Upload a video → AI watches AND listens to detect natural chapter breaks → copy-paste timestamps into YouTube description. What makes it different: dual verification with Whisper audio + Moment-DETR visual cross-validation. Tested on a 68-min movie: 18/19 chapters correct. 100% local — your video never leaves your machine. No API keys, no signup, no watermark. Built for YouTubers who hate typing timestamps manually.