MadSync - Music Video Editor

MadSync cuts your footage to the beat for you. Drop clips on the timeline and they snap to the drums. Auto-lyrics makes word-by-word karaoke captions, stem separation pulls out vocals and drums, plus audio visualizers and lo-fi atmosphere. Everything runs on your PC, offline and private. Free demo of the full app (watermark, 60s export cap). $49 once unlocks clean exports, no subscription.