Playlist Deduper for YouTube™

Find, review, and safely remove exact duplicate videos from YouTube™ playlists. Local-only, no API key or data upload.

Find exact duplicate video entries in YouTube playlists, review their positions, and choose which copies to remove. SCAN → REVIEW → CLEAN • Scan loaded entries or load a long playlist. Incomplete scans are labelled partial. • Match exact video IDs, not similar titles. • Select duplicate groups and keep the first or last occurrence. • Search and sort results; copy a report or export CSV locally. • Review the removal count and confirm before cleanup. PRIVACY FIRST No API key, separate OAuth connection, analytics, advertising, backend, or playlist-data upload. Only interface preferences are stored in local extension storage. Access uses activeTab and scripting after you invoke the extension; no persistent YouTube host permission is requested. SAFETY AND LIMITATIONS Cleanup uses visible YouTube controls, binds to the reviewed playlist, and stops if entries or menus change unexpectedly. Removal currently recognizes conservative English commands only. You must be signed into YouTube and able to edit the playlist. Unidentified or unavailable entries are skipped. YouTube interface changes can require an extension update. Screenshots show the actual v1.3.1 interface with a local demonstration playlist. Source available for non-commercial use: PolyForm Noncommercial 1.0.0 code; CC BY-NC 4.0 documentation and original media. YouTube is a trademark of Google LLC. This independent extension is not affiliated with, endorsed by, sponsored by, or maintained by Google LLC or YouTube.