Clips by Plastic

Clips by Plastic is a Mac app for musicians that turns a finished song into vertical lyric video ads. Drop in a song plus your own footage or photos, and Clips detects the tempo, identifies each part (verses, pre-chorus, chorus, bridge), and produces beat-cut vertical videos with word-by-word synced lyrics. Choose a layout and one of 54 effects, then batch-export every part on every backdrop, named and ready for Ads Manager. It works offline, is free to try, and costs $99 once after that.