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.

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

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.

After purchase, the license is generated manually. Please open the app, go to the License screen, enter your purchase email, click Copy License Request, and send that request to sergeyappleservice@gmail.com. Because license keys are issued manually, delivery may not be instant. Depending on time zone differences, it may take several hours before your license key is sent.

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

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.

License delivery is manual and may take several hours depending on time zone differences.

After payment, open the app, copy your License Request, and send it to sergeyappleservice@gmail.com. Your license key will be generated manually.

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.

Terms of Service

Local Music Organizer is provided as Early Access macOS software for local Music.app library maintenance. By purchasing or using the app, you understand that it is intended for careful users who maintain backups of their important music libraries.

The app can read local Music.app library data, inspect local audio files, compare playlists, edit Music.app tags, remove playlist entries, and generate reports when you explicitly choose those actions. You are responsible for reviewing changes before confirming them.

A license is issued for one buyer email and one Mac hardware ID. Hardware replacement, system migration, clean macOS reinstall, or major device changes may require a replacement license key. Early Access features may change during development.

License keys are generated manually after purchase. Because this is a manual Early Access process, license delivery may not be instant and may take several hours depending on time zone differences.

Local Music Organizer is not responsible for damage caused by missing backups, incorrect user actions, third-party tools, corrupted Music.app libraries, file permission problems, unsupported macOS versions, unsupported library setups, or unsupported system configurations. Always keep backups before cleanup or repair work.

Privacy Policy

Local Music Organizer is designed as a local macOS utility. The app works with local Music.app libraries and local files on your Mac. It does not require a user account or cloud database for normal operation.

For Early Access licensing, the app displays a license request containing the buyer email, app version, and a hardware ID derived from the Mac. The buyer sends this license request manually by email so a license key can be generated.

The app may store license information locally on the Mac. It does not sell personal data. Payment processing, checkout, tax handling, and transaction records may be handled by the payment provider used for purchase.

Support emails may contain information voluntarily provided by the user, such as license request text, app version, hardware ID, logs, screenshots, or problem descriptions. This information is used only for support, licensing, troubleshooting, and product improvement.

Refund Policy

Local Music Organizer is sold as Early Access software. Refund requests are reviewed manually and should be submitted within 14 days of purchase.

If the app cannot be activated or does not launch on a supported Mac, contact support at sergeyappleservice@gmail.com with your purchase email, app version, macOS version, and license request.

Refunds may be accepted when the software cannot be activated or cannot reasonably be used on a supported system after troubleshooting.

Refunds may be declined if more than 14 days have passed since purchase, if the license has been issued and the software works as described, or if the problem is caused by unsupported macOS versions, missing permissions, missing backups, unsupported library setups, corrupted local libraries, third-party tools, or user actions outside the app’s intended use.

Because license keys are issued manually, a short delivery delay is not considered a product failure. Depending on time zone differences, license delivery may take several hours.

Before purchase, users should understand that Early Access software may contain bugs, interface changes, and ongoing improvements.