Local Music Organizer

Organize, analyze and maintain your local music collection

Local Music Organizer (LMO) is a native macOS toolkit built for music collectors who manage large offline libraries in Apple's Music.app. It combines library organization, diagnostics, audio-quality analysis, file maintenance and advanced conversion without moving your music to the cloud.

Key capabilities

• Library Index & Dashboard: Persistent SQLite indexing, collection statistics, playlist relationships and incremental updates.
• Health Check: Find missing files, broken references, orphaned recordings and incomplete albums. Relink individual tracks or moved folders.
• Duplicate Detection: Identify duplicate playlist entries, library records and alternative physical recordings.
• Real-Time A/B Compare: Switch between two versions with temporary loudness matching, precise alignment and live spectrum analysis.
• File Maintenance: Review permissions, correct filenames, clean supported hidden metadata and refresh outdated Music.app file information.
• Audio Inspector: Examine codecs, bitrates, sample rates, bit depth and spectrograms. Detect potential lossy-to-lossless conversions and audio upscaling.
• Repair / Convert: Process FLAC, ALAC, WAV, MP3, APE, TAK, WavPack, CUE albums, DSD and SACD ISO using bundled offline tools.
• Playlist Tools: Explore Library Map, Track Usage and Playlist Compare. Create less repetitive playlists with Shuffle Builder.
• Live Spectrum Players: Choose ORIGINAL, CLASSIC or GLASS, including interactive waveform analysis and customizable 3D visualization.

Built for collectors, with file safety in mind

LMO keeps analysis local, separates diagnostics from modifying actions and uses verification safeguards for supported file operations. It works alongside Music.app without directly modifying its internal database.

Availability: macOS 14+, Apple Silicon and Intel. Full-featured 3-day free trial, followed by a $29.99 one-time purchase. No subscription.