Early Access · macOS 14 Sonoma or later · Universal Mac build

Clean up large local Music.app libraries without losing control.

Local Music Organizer is a macOS utility for people with serious local music collections. It helps inspect large Music.app libraries, compare playlists, find repeated tracks, locate playlist usage, edit Music.app tags, identify missing files and artwork, inspect audio quality, build smarter shuffle lists, and safely repair messy local libraries.

Get Early Access Read Safety Notes

Apple Silicon is recommended. Intel Macs are supported with Universal builds, but very large scans and Music.app operations may be slower. The app is designed for local Music.app libraries, not cloud-only Apple Music streaming collections.

Music.app library tools Playlist comparison Duplicate cleanup Tag editing with undo Warm Cache acceleration Audio inspection Repair / Convert workflows

Cache ready: Music Library + full records + playlists

Playlist CompareFind the same track across two playlists and remove only the playlist entry.

Track UsageSee every playlist where a track or file is used.

DashboardInspect bitrate, codec, sample rate, missing files, artwork, and outliers.

UndoSupported tag edits and playlist removals can be reversed.

Made by a music library user, not by a big company.

Local Music Organizer started as a personal tool. I am a regular Mac user with a large offline Music.app library collected over many years. After years of importing albums, moving files, creating playlists, replacing old versions, fixing tags, and keeping local copies, the library slowly became difficult to trust: repeated tracks, unclear playlist usage, old duplicates, missing artwork, inconsistent tags, suspicious file references, and too much manual checking.

I also wanted a better way to build shuffle-style playlists for a large local collection. Simple random playback can sometimes feel repetitive: the same artists appear too close together, album blocks can cluster, and listening sessions can start to feel predictable. I wanted a tool that could help me build more natural playlists, reduce repeated patterns, and make a large offline library feel fresh again.

So I built Local Music Organizer for my own library first. The goal was practical: understand what is inside Music.app, find where tracks are used, compare playlists, clean duplicates safely, edit tags with undo, inspect audio files, warm a cache for large scans, and avoid dangerous one-click cleanup. The app solved the problems I had in my own collection and helped me finally bring order back to a library that had grown over many years.

I decided to make it available because I believe the same problems exist for other people with serious local music collections. If you still care about offline files, curated playlists, clean metadata, local backups, and knowing exactly what will change before you press a button, Local Music Organizer was made for that kind of library.

Why this app exists

Built from a real large offline Music.app library.
Designed for local files, real playlists, and long-term collections.
Focused on visibility before cleanup, not blind automatic deletion.
Created to fix repeated tracks, messy tags, unclear playlist usage, and duplicate records.
Includes Smart Shuffle Builder for more natural large-library listening sessions.
Made for users who still value carefully maintained local music libraries.

Built for messy real-world music libraries.

Large local collections are rarely clean. The same file may appear in many playlists, tags may be inconsistent, albums may be missing artwork, old imports may point to missing files, and quality can vary between versions. Local Music Organizer brings practical maintenance tools into one focused Mac app.

Library Dashboard

Creates a read-only overview of the Music.app library: records scanned, empty artists, low bitrate tracks, missing artwork, missing files, long tracks, codec/container information, storage clues, and suspicious records.

Music Snapshot Cache

Large libraries can be warmed into memory before heavy work. The cache stores full Music records, lightweight library records, and playlist membership data so repeated scans and comparisons can become much faster after the first read.

Playlist Compare

Compares two playlists and shows tracks that appear in both. You can play A/B, inspect entries, edit tags, copy paths, or remove only the playlist entry from one side.

Playlist Duplicates

Finds duplicate entries inside one playlist. Removal affects the playlist entry only; it does not delete the audio file and does not delete the Music library record.

Library Duplicates

Finds Music.app library records pointing to the same local file or exact duplicate candidates. It helps identify unused duplicate records and protect playlist usage.

Track Usage

Searches for a track or file and shows every playlist where it is used. Useful before deleting, renaming, repairing, or moving local files.

Health Check

Scans selected playlists and library records for missing files, inaccessible paths, empty metadata, orphan physical files under a chosen root, and library records that need review.

Artwork Check

Finds tracks and albums with missing artwork. Artwork access is separated from lighter scans because it can be slower through Music.app.

Audio Quality Dashboard

Inspects bitrate, sample rate, file kind, duration, size, codec/container clues, missing files, long tracks, and suspicious records.

Quality Duplicates

Helps compare multiple versions of similar tracks and choose the better candidate by quality-related signals.

Audio Inspector

Opens a local audio file and shows technical information such as format, sample rate, bit depth, bitrate, channels, duration, size, raw afinfo data, and a spectrogram-style visual inspection.

Tag Editing

Visible Music.app records can be edited directly from the app. Supported tag changes update Music.app and can be undone.

Repair / Convert workflows

Designed for libraries with mixed and old-school formats. Workflows can help prepare Music-compatible versions from common, old-school, and audiophile inputs when helper tools are installed.

File Maintenance

Helps reveal files in Finder, copy paths, check permissions, compare Music.app references with real files on disk, and understand whether library records point to accessible local media.

Smart Shuffle Builder

Creates more natural shuffle-style lists by reducing repeated artist clusters, album blocks, and predictable patterns in large local collections.

Warm Cache makes large libraries practical.

Music.app automation can be slow with thousands of tracks and many playlists. Local Music Organizer uses a Music Snapshot Cache so the app can read expensive data once and reuse it across multiple tools.

Full Library Records Cache feeds Dashboard, Quality checks, Library Duplicates, File Maintenance, and fast library searches.
Light Music Library Cache feeds Library Map, Track Usage, and repeated library matching operations.
Playlist Membership Cache feeds Playlist Compare, Playlist Duplicates, Track Usage, Health Check, and playlist usage protection.
The cache panel shows current read progress, overall warm-up progress, elapsed time, and whether a scan is using cached data.
For large collections, let Warm Cache finish before running heavy scans. The first read may take time; repeated operations can become much faster afterward.

Safety-first cleanup.

The app is designed to make library maintenance understandable. It shows what it is about to change, avoids silent destructive actions, and keeps scan operations read-only unless you explicitly press an action button.

Scans do not delete audio files.
Playlist removal actions remove playlist entries, not physical audio files.
Tag edits are explicit user actions and are sent to Music.app.
Supported edits/removals have Undo and visible result refresh.
Log folders and reports help review what happened.

Important responsibility note.

Keep a backup of important Music.app libraries before cleanup.
Use at your own responsibility when changing tags, playlist entries, or library records.
Very large libraries may take time to read from Music.app.
Automation permission for Music.app is required for Music.app operations.
Full Disk Access may be needed for file and folder checks.

Early Access release.

Local Music Organizer is already useful for cleaning and understanding large local Music.app libraries, but it is still an Early Access product. The first public release is intended for careful users with real local collections who understand backups and library maintenance.

Version target: 0.3 Early Access macOS 14 Sonoma or later Apple Silicon recommended Intel supported in Universal builds Local Music.app libraries

Planned Early Access license

$19

One-time Early Access license. Includes Early Access updates. License keys are generated manually for the buyer email and Mac hardware ID.

Request Early Access

For Early Access orders and questions, contact sergeyappleservice@gmail.com.

What it does not try to be.

Local Music Organizer is not a streaming service manager, not a cloud Apple Music replacement, not a general media player, and not a one-click magic cleanup tool. It is a focused maintenance utility for people who care about their local Music.app library and want visibility before making changes.