A single 0–100 number that summarizes your library's state across missing files, duplicates, broken paths, folder scatter, and audio quality.
You know your library has problems. What you don't know is which problems matter most. Is it 50 missing tracks or 500? Are duplicates worse than scatter? Does it even make sense to fix things one weekend if there are 3 weekends' worth of work? Without a single number to anchor the conversation, library maintenance becomes either compulsive (chasing every flag) or perpetual procrastination.
Supported today
Rekordbox · Serato DJ · VirtualDJ (incl. Favorite Folders) on Windows 10+ and macOS (Apple Silicon + Intel).
A single number forces prioritization. Instead of staring at three different lists trying to figure out where to spend an hour, you see one number, the breakdown, and you know exactly where the biggest win is. The same score works across Rekordbox, Serato, and VirtualDJ, so multi-app DJs get one truth instead of three. The methodology is transparent — you can drill into each component and see what counts and what doesn't.
Five components: missing tracks (files referenced but not on disk), duplicate tracks (acoustic + metadata), broken playlist references (tracks linked but flagged offline), folder scatter (how many root folders your library spans), and audio quality (FFT-based score distribution).
Generally: 85–100 is healthy, 70–84 has room to clean up, 50–69 has real problems that affect daily use, below 50 needs a dedicated cleanup session. The exact threshold depends on library size — a 100-track library at 70 is rougher than a 50,000-track library at 70.
No. Tracks on unplugged external drives are counted as offline, not missing. The score only flags real problems — tracks that should be on disk and aren't.
Yes. Per-app scores are shown alongside the overall. So if your Rekordbox library is in great shape but Serato is a mess, you see both numbers separately.
Yes. Everything runs locally; nothing about your library is uploaded. The score lives only on your machine.
Free tier covers detection and viewing. Lifetime access is $49 — $19 for the first 100 DJs.
