YT Wallpaper

YT Wallpaper is a macOS app that turns clips of YouTube videos into live desktop wallpapers. Pick a video, trim the part you like, and it plays behind your desktop icons — paused automatically when it is covered, on battery or asleep.

Signing in with Google or Apple is optional. It lets the app remember your trimmed clips and saved videos across your Macs. Only the clip details (YouTube video ID, title and trim range) are synced; video files stay on each Mac.

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