Free · Serato only

Find every duplicate. Keep the best copy.

Same song, many copies? MLT finds them by sound — not by filename — so you know exactly what to clean up. Scanning, detecting and deleting (from Serato or a folder) is free. Auto-replacing bad copies inside your Serato crates with the better version is a Pro feature.

Download MLT — Free

Want auto-replace in crates? Upgrade to MLT Pro.

Audio fingerprinting — filename-proof

Mac & Windows · Serato · Free to use

MLT Find Duplicates app — audio-fingerprint duplicate scanner

How it works

Scan. Review. Replace. Delete.

Audio-fingerprint scanning

Scan your whole Serato library or a specific folder. Audio fingerprinting catches duplicates even when filenames, tags, or bitrates differ.

Replace bad copies in your crates

Got a bad rip in a crate and a better copy elsewhere? MLT swaps the bad one for the good one and parks the bad copy in a Duplicates crate for you to delete when ready.

Send the list to Serato to delete

Review the results, approve, push the list into Serato. One clean sweep.

Compatibility

Serato only. Mac & Windows.

Serato only.
Mac & Windows — macOS (Apple Silicon + Intel) and Windows.
Works on libraries of any size — large scans can take a while but finish overnight.

“Love that it'll create cues for me and clean my hard drive of duplicates.”

— @gizmo_dj

Common questions

Before you download.

Does it delete files automatically?

No — you always review first. It just prepares the list and can send it to Serato for you to delete.

How does the audio fingerprint work?

Each track gets a fingerprint based on the actual audio. If two tracks sound the same, they match — even if one's MP3 and one's WAV, or filenames differ.

Is it really free?

Yes — scan, detect and delete duplicates for free. Auto-replacing bad copies inside your Serato crates is a MLT Pro feature.