Local Music Organizer for Mac

Local Music Organizer — Advanced Tools for Your Mac Music Collection

Built by a music collector, for music collectors.

Local Music Organizer is a native macOS application designed for people who maintain serious offline music collections. It combines advanced Music.app library management, duplicate detection, file recovery, audio inspection, safe metadata maintenance, specialist format conversion, and three original spectrum players in one comprehensive toolkit.

Unlike streaming-focused music applications, Local Music Organizer works with your own physical audio files and local Music.app library. It helps you understand what is actually stored, identify problems, compare recordings, and make carefully controlled changes without surrendering ownership of your collection.

Understand Your Entire Music Library

The Library Dashboard provides an overview of technical characteristics, missing information, suspicious records, and other conditions worth investigating.

A dedicated Library Index stores Music.app records and playlist relationships in a local SQLite database. Large collections can be analyzed efficiently without repeatedly reading every record from Music.app.

The application never patches or rebuilds Music.app's private database.

Find Duplicates Without Losing Important Records

Local Music Organizer distinguishes different types of duplication rather than treating every repeated song as an unwanted file.

• Playlist Duplicates: Find repeated entries within individual playlists.
• Library Duplicates: Identify multiple Music.app records referring to the same physical file.
• Library Map: Understand connections between tracks and playlists.
• Quality Duplicates: Compare separate physical versions of recordings.

Track Usage shows which playlists contain a particular recording. Playlist Compare identifies overlaps and differences between playlists.

Shuffle Builder creates balanced playlists with customizable artist, title, and album separation rules.

Health Check, Missing Files and Album Completeness

Music collections often accumulate broken references after files are moved, drives are disconnected, or albums are imported incorrectly.

Health Check helps identify:

• Missing or inaccessible audio files.
• Broken Music.app file references.
• External storage that is temporarily unavailable.
• Orphaned audio files not represented by matching library records.
• Conflicting file locations.
• Incomplete albums and inconsistent track or disc numbering.

Supported actions include carefully reviewed file relinking, moved-folder relinking, orphan import, and removal of exact missing Music.app records.

Album Completeness uses existing Track Number, Track Count, Disc Number, and Disc Count information to identify missing positions without guessing song titles or contacting online music databases.

Optional notifications can identify potentially incomplete newly imported albums.

File Maintenance — Precise Control Over Metadata

File Maintenance separates scanning from editing. Finding an issue never automatically changes the source file.

Available tools include:

• Audio-file permission inspection and eligible corrections.
• Finder extended-attribute review and supported last-used metadata editing.
• Naming and spacing corrections for Music.app fields and physical filenames.
• Detection of supported hidden audio tags, including downloader, ripper, encoder, promotional, and editing-history signatures.
• Selective verified removal of eligible physical metadata without re-encoding audio.
• A dedicated workflow for verified M4A Encoded with (©too) metadata.

LMO protects artwork, core musical tags, audio samples, playback timing, and unsupported fields. It distinguishes physical tags from metadata already stored by Music.app. Successful embedded-tag removal is permanent, so review and backup are encouraged.

Audio Inspector and Authenticity Analysis

Audio Inspector examines the technical properties of individual recordings, including format, bitrate, sample rate, bit depth, frequency content, and spectrogram information.

Fast, Balanced, and Deep inspection modes offer different analysis windows.

Audio Authenticity Analyzer examines spectral evidence that may help identify suspicious sources or recordings presented as lossless despite potentially lossy origins.

The results are analytical indicators, not automatic judgments about musical quality.

Repair and Convert Difficult Audio Formats

The integrated Repair / Convert system supports a range of common and specialist audio workflows:

• FLAC, WAV, MP3, WavPack, DSF, and other supported formats.
• CUE-based album processing.
• SACD ISO extraction and conversion.
• Sample-rate and lossless bit-depth conversion.
• Batch conversion queues.
• Vinyl De-click with before-and-after preview samples.

Required audio engines are bundled with the application. No separate codec installation is normally necessary.

Original files are preserved unless the user explicitly selects a supported source-handling action. The application avoids silent overwrites.

Compare Two Recordings in Real Time

The A/B Duplicate Compare player allows you to evaluate different versions of the same recording.

Listen to Version A or Version B, adjust their playback alignment, and examine live spectrum differences alongside technical measurements.

Available analysis includes frequency spectra, peak and RMS levels, loudness indicators, and temporary listening adjustments.

This is useful when comparing different CD rips, releases, encodings, or masters without modifying the original recordings.

Three Original Live Spectrum Players

Local Music Organizer also brings a distinctive visual listening experience to Mac.

ORIGINAL features a detailed real-time spectrum analyzer, full-track waveform navigation, playback controls, queue management, and technical track information.

CLASSIC is inspired by traditional hi-fi equipment, with hardware-style controls, animated displays, artwork, track information, playlist navigation, and queue views.

GLASS is a Metal-powered 3D spectrum visualizer featuring transparent structures, reflections, adjustable lighting, perspective controls, and LIVE, WAVE, and OUTLINE presentations.

Compact layouts include the Elektronika Mini Player and GLASS Mini Player.

All three main interfaces share the same playback engine and queue, allowing visual styles to change without creating a separate playback session.

Native macOS Design and Local Privacy

Local Music Organizer is built using Swift and SwiftUI, with integration into Music.app, Finder, macOS file permissions, native audio technologies, local SQLite storage, and Metal graphics.

It supports:

• macOS 14 Sonoma or later.
• Apple Silicon and Intel Macs.
• Physically accessible local audio files.
• Large offline Music.app collections.

The application does not require an Apple Music subscription, download streaming content, or upload your music library to a cloud service.

Network/NAS workflows are not part of the currently validated supported scope.

Independent Development and Simple Pricing

Local Music Organizer was developed by an independent music collector to solve practical problems encountered while maintaining a large personal music library.

Price: $29.99 one-time purchase through the Mac App Store.

A full-featured 3-day trial is available before purchase.

No subscription. No automatic recurring charges.

Local Music Organizer is for Mac users who care about their own music files, carefully curated playlists, audio quality, and long-term ownership of their collections.

Official website: https://local-music-organizer-site.pages.dev/