Dupi - YT Music Playlist Organizer

Dupi is open source under the MIT License. Dupi is a YouTube Music playlist manager and organizer built to end the chaos. Managing massive playlists shouldn't be a nightmare to find that one hidden gem, clean up duplicate songs, and tag every track in seconds. Key Features: - Smart Tag System — A stable, flexible tagging and categorizing system with powerful filters to sort your entire library. - Real-Time Search — No more endless scrolling. Find any song or artist within your playlist instantly. - Duplicate Scanner — Detect and clean up duplicate tracks, including different covers of the same song, to keep your playlists organized. - Data Export & Backup — Take your playlists anywhere. Export and backup to .md, .csv, or .json. Runs entirely in your browser — no account required, no data collection. The multitool YouTube Music extension for organizing, sorting, and backing up your playlists, built for power users by a power user.