Find Duplicate Songs Across YouTube Music Playlists

Put a big library on shuffle and the same song comes up three times in an afternoon: once from your Road Trip playlist, once from Gym, once from Liked Music. Or you're building a new playlist and can't remember whether you already added that track to the last one.

YouTube Music will warn you about some duplicates when you add a song to the same playlist, but there's no built-in way to find duplicate songs across your YouTube Music playlists. This guide covers why duplicates pile up, what "the same song" really means on YouTube, a free do-it-yourself method, and a faster way if you have a lot of playlists.

Why duplicates pile up in YouTube Music

If your library is a bit of a mess, that's normal. A few habits cause most of it:

• Liked Music overlaps with everything. Every time you thumb up a song, it lands in Liked Music, and it's probably already in one or more of your playlists too.
• Mood and genre playlists overlap by design. A great song belongs in "Chill," "Late Night," and "Best of 2019." Sometimes that's intentional. Often it's an accident you'd rather undo.
• Several versions of one song. YouTube Music has official music videos, "Topic" audio tracks, lyric videos, live versions, and fan uploads, all separate videos. You can add the "same" song twice without realizing it.
• Collaborative and imported playlists. Playlists you've merged, copied from friends, or moved over from another service often bring overlap with them.
• Years of adding. The longer a library grows, the more you forget what's already in it.

The manual way hurts

Without tools, finding duplicates across playlists means opening playlist A, scrolling, opening playlist B, scrolling, and trying to remember whether that track looked familiar. With more than a couple of short playlists, this falls apart quickly. You'll miss duplicates and burn an evening on it.

What counts as "the same song"?

Before you start matching, decide what duplicate means to you, because on YouTube there are two very different definitions.

Same video ID (exact duplicate)

Every YouTube video has a unique 11-character ID. If the same ID shows up in two playlists, it's unambiguously the same item. This is the strictest, most reliable match, and the easiest one to automate.

Same title and artist (same song, different upload)

"Wonderwall" by Oasis might be in your library as the official video, the Topic audio track, and a remaster, each with a different video ID. A strict ID match won't catch these. Matching on title + artist will, but it's fuzzier: titles carry extras like "(Official Video)," "Remastered 2014," or "[Lyrics]," and channel names vary ("Oasis" vs "Oasis - Topic").

Most people want both: catch exact duplicates automatically, then look over likely same-song matches by hand. Sometimes you do want the live version and the studio version, and only you can decide that.

DIY: find duplicates with an export and a spreadsheet

Here's a free method that works if you're comfortable with spreadsheets.

Step 1: Export your playlists

• Google Takeout (takeout.google.com) can export your YouTube and YouTube Music data, including playlists, usually as CSV files with video IDs.
• Alternatively, several open-source tools on GitHub can export a playlist's video IDs and titles.

Step 2: Combine everything into one sheet

Put all songs in one sheet with columns like:

Playlist	Video ID	Title	Artist / Channel

If your export only has video IDs, you may need a tool that also fetches titles, or you can work with IDs alone for exact duplicates.

Step 3: Find exact duplicates by ID

In Google Sheets or Excel, add a column with a count formula, for example:

=COUNTIF(B:B, B2)

Anything greater than 1 appears in more than one place. Sort or filter by that column to see your duplicates grouped together.

Step 4: Find likely same-song matches

Make a "normalized" title column that strips the noise: lowercase everything, and remove common suffixes like "official video," "official audio," "lyrics," and anything in brackets. Then combine it with the artist and count again. The results won't be perfect, but they'll surface most same-song duplicates for you to review.

Step 5: Clean up in YouTube Music

Go back to YouTube Music and remove the copies you don't want. (Your spreadsheet doesn't change anything in YouTube. It just tells you where to look.)

Where DIY falls short

• It's a snapshot: the next time you add songs, it's out of date.
• Normalizing titles by hand is fiddly.
• Re-exporting and rebuilding the sheet each time gets old fast.

A faster approach: cross-playlist duplicate detection

A duplicate finder that's connected to your library does the exact-match part automatically and keeps it current. It reads every playlist you track, matches songs, and shows each duplicate with the list of playlists (and positions) it appears in. As you add music, it updates.

That turns cleanup into a short review: look at the list, decide what stays, remove the rest.

A cleanup workflow that actually sticks

Whichever method you use, this order keeps things manageable:

1. Start with your biggest playlists. They hold most of the overlap.
2. Decide on a "home" for each song. Keep a track where it's most at home and remove it from playlists where it was an accident. Leave it where the overlap is intentional.
3. Pick a preferred version. When you have both a fan upload and an official or Topic version, keep the official one. Official uploads tend to be more stable over time.
4. Deal with dead rows while you're there. Duplicate cleanup is a good moment to swap any [Deleted video] rows for working versions (see below).
5. Recheck occasionally. A quick review every month or two keeps the mess from coming back.

How duplicates connect to deleted songs

Duplicates and deleted songs are closer than they look. When a fan upload you saved gets taken down, you might have a working copy of the same song in another playlist without knowing it. And when you're replacing a deleted track, checking for an existing copy first stops you from adding yet another duplicate.

If deleted tracks are part of your mess, these guides help: how to see and name deleted songs in YouTube Music and how to recover deleted song titles from a YouTube playlist.

How PermaMusic helps

PermaMusic includes a Duplicate Finder that shows songs appearing across your tracked playlists, along with which playlists and positions they're in (for example, "Don't Stop Me Now: Road Trip #12, Party #4, Gym #31"). You connect your Google account with read-only access, choose which playlists to track, and PermaMusic does the matching. It flags the exact same video appearing in more than one playlist. Different uploads of the same song (an official video and its Topic track, say) still need a quick look by hand. It doesn't change anything in your YouTube account, so you stay in control of what gets removed.

Duplicates are flagged alongside the other things PermaMusic tracks: deleted song titles (so blank rows get their names back wherever they can be found), universal search across every tracked playlist, and ordered play queues that let you play songs from different playlists in order in YouTube Music. The free plan includes a first full scan and flags a limited number of duplicates, so you can see how much overlap you have before deciding on more.

Recap

• YouTube Music has no built-in way to find duplicates across playlists.
• Duplicates come from Liked Music overlap, mood playlists, and the many versions of one song on YouTube.
• Match on video ID for exact duplicates and on normalized title + artist for same-song versions.
• A Takeout export + spreadsheet works for free, but it's a one-off snapshot.
• A connected duplicate finder keeps the list current, and cleanup is a good time to fix deleted tracks too.