Local Music Organizer is a native macOS application created by an independent developer and long-time music collector to manage large offline music libraries.
It works with Apple's Music.app and standalone audio files. A persistent SQLite index supports library searches, playlist comparisons and track usage analysis. Find missing files, duplicate records, repeated playlist entries, incomplete albums and missing artwork. Health Check helps reconnect moved files without rebuilding playlists.
File Maintenance inspects filenames, permissions, Finder metadata and embedded audio tags. Audio Inspector examines codecs, bitrates and spectral content, while Audio Authenticity Analyzer identifies possible lossy transcodes and artificial upscaling.
Real-time A/B Compare lets you synchronize two recordings, match playback loudness, loop passages and compare live frequency spectra.
Repair / Convert supports common and specialist audio formats, including FLAC, ALAC, MP3, APE, TAK, WavPack, DSD, SACD ISO and CUE albums. The app also includes Shuffle Builder and three built-in audio player interfaces.
Everything runs locally on your Mac, without cloud uploads or subscriptions. Diagnostic operations are read-only, and file changes require explicit user action.
Compatible with Intel and Apple Silicon Macs running macOS 14 or later.
Free 3-day full-featured trial. One-time purchase: $29.99.
Watch the actual application in action:
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