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Local Music Organizer is a native macOS toolkit built for large local music collections. It works with Music.app libraries and standalone audio files, with no Apple Music subscription required. Find duplicates and missing files, compare playlists, inspect metadata, detect suspicious upscales and transcodes, view spectra and waveforms, and repair or convert rare formats offline. Your music stays on your Mac. Try every feature free for 3 days, then unlock it with one purchase. No subscription.
Local Music Organizer for Mac
Hi everyone! 👋
Local Music Organizer started as a small personal project for my own music collection.
I've been maintaining a local music library since the early iTunes years. When CD writers and MP3 car players became common, I converted much of my CD collection to 192 kbps MP3. At the time, that seemed perfectly reasonable.
Years later, after upgrading my audio equipment, I realized how much quality I had lost. I began replacing old files with better versions lossless releases, vinyl transfers, rare editions and music collected from many different sources.
Over the years the library became increasingly difficult to maintain. Tracks were replaced, moved and reorganized. Some files disappeared while old Music.app records remained. Playlists accumulated duplicate entries. Different versions of the same recordings lived side by side, along with inconsistent tags, missing artwork and metadata left behind by converters and download sources.
But Local Music Organizer actually began for a completely different reason.
I simply wanted a better playlist shuffler. I never liked how Music.app shuffle could return to the same artists too often while other tracks seemed to disappear for a long time. So I built my own system with spacing between artists, albums and related artist projects.
While building it, I started discovering all the other problems in my library.
That small playlist tool gradually became Local Music Organizer a toolkit for inspecting, organizing, analyzing, repairing and converting large local Music.app collections.
A major principle throughout development has been safety. Most analysis is read-only, and operations that can modify files require explicit user action and additional verification.
Everything runs locally on the Mac. There are no analytics, advertising or tracking, and your music library is not uploaded anywhere.
I'm an independent developer, and I originally built this because I needed it myself.
I'd especially love to hear from people who have also maintained an iTunes or Music.app library for many years: what problems have accumulated in your collection that existing tools still don't solve?
Thanks for taking a look!
Softorino 💻📲
Detecting upscales dressed up as FLAC is the feature I didn't know I needed, half my old library is probably lying to me. When it flags a suspicious transcode, does it just mark it or can it help me hunt down a proper replacement? Local music people are exactly the crowd that never wants a subscription, smart call.
Local Music Organizer for Mac
@yelyzaveta_kibets Thanks! LMO deliberately stops at diagnosis. It can flag a suspicious upscale or transcode and show the technical evidence, but it will not search the web for free replacement downloads. That would cross into piracy, and I don’t want the app doing that.
If you already have multiple local copies, Quality Duplicates can help compare them and identify the better one. For an actual replacement, the idea is to use a legal source you already own or purchase separately.
And yes, I felt the same about subscriptions. A local library tool should feel like something you own.