Dupli-Spot — Spotify Playlist Cleanup Suite

Dupli-Spot is a free web app for cleaning and researching Spotify playlists. It finds and removes duplicate tracks across an entire Spotify library, detects near-duplicate playlists, and looks up rich track and playlist metadata such as ISRC codes, labels, and release info. Built with the official Spotify Web API and available in 15 languages.

Tools

• Mini-Spot — scan every playlist in your Spotify library for duplicate tracks in one pass, including cross-playlist duplicates and similar playlists, then remove them with undo support.
• Lookup — search any track by name, Spotify URL, Apple Music URL, or ISRC code for detailed metadata: release date, label, popularity, and previews. Batch mode processes whole catalogs with CSV/JSON export.
• Playlist Lookup — paste a Spotify playlist URL to see top artists, genres, label affiliations, and label market share.
• History — unified, local-first history of scans, lookups, and removals with CSV export.

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Dupli-Spot is free to use. This page requires JavaScript for the interactive app.