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.
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.
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. It is meant as the main starting point before cleanup.
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, comparisons, usage checks, and dashboard operations can become much faster after the first read.
Playlist Compare
Compares two playlists and shows tracks that appear in both. It can detect the same physical file, the same persistent Music.app ID, or strong metadata matches. You can play A/B, inspect both entries, edit tags, copy paths, or remove only the playlist entry from one side.
Playlist Duplicates
Finds duplicate entries inside one playlist. This is for cases where the same song appears twice in the same 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, protect playlist usage, create review playlists, and perform safer cleanup where physical files are not intentionally deleted.
Track Usage
Searches for a track or file and shows every playlist where it is used. It can search the local disk by filename/path and then use the playlist cache to show membership across playlists. It is useful before deleting, renaming, repairing, or moving local files.
Health Check
Scans selected playlists and library records for practical problems: missing files, inaccessible paths, questionable metadata, empty artist/title fields, orphan physical files under a chosen root, and library records that need review. It creates safe reports instead of silently changing data.
Artwork Check
Finds tracks and albums with missing artwork. This is separated from lighter scans because artwork access can be slower through Music.app. The app keeps this as a focused inspection mode so large libraries stay manageable.
Audio Quality Dashboard
Inspects bitrate, sample rate, file kind, duration, size, codec/container clues, missing files, long tracks, and suspicious records. It can use full records cache for faster repeated dashboard scans after the first full library read.
Quality Duplicates
Helps compare multiple versions of similar tracks and choose the better candidate by quality-related signals. It is designed for libraries with old MP3s, ALAC/WAV/AIFF files, remasters, imports, and mixed-quality duplicates.
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. Useful for checking suspicious, old, or converted files.
Tag Editing
Visible Music.app records can be edited directly from the app. Fields include title, artist, album, album artist, composer, genre, year, track number, disc number, and comments. Tag changes update Music.app and supported edits can be undone.
Undo for real operations
Undo is not only a visual action. Supported tag edits and playlist removals update Music.app and then refresh the visible result list so the change appears immediately. Removed playlist entries can return to the visible list after undo.
Repair / Convert workflows
Designed for libraries with mixed and old-school formats. Workflows can help prepare Music-compatible versions from many common, old-school, and audiophile inputs when helper tools are installed. Original files are not overwritten by default.
Supported conversion direction
Workflows are intended around common inputs such as FLAC, WAV, AIFF, OGG, Opus, WebM, APE, WV/WVC, TAK+CUE, OFR/OFS, MPC, TTA, SHN, ATRAC, tracker modules, game audio, AC3/EAC3/DTS, CUE, M3U/M3U8/PLS and other supported sources, with outputs such as ALAC M4A, AAC, MP3, AIFF, and WAV-style workflows depending on installed tools.
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. It is useful before moving, repairing, or backing up a collection.
Smart Shuffle Builder
Creates more natural shuffle-style lists for large libraries by reducing repeated artist clusters, album blocks, and predictable patterns. It is intended for people who want a better listening flow than simple random ordering across huge local collections.
Local-first design
The app is built around local Music.app libraries and local audio files. It does not try to manage cloud-only Apple Music streaming items. It works best when your music files live on your Mac or on mounted storage visible to macOS.
Warm Cache makes large libraries practical.
Music.app automation can be slow, especially 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 tries to show what it is about to change, avoid silent destructive actions, and keep 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.
- Cleanup modes explain whether they touch Music.app records, playlist entries, or only reports.
- 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.
- Mounted network folders depend on how macOS exposes them.
- 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.
Planned Early Access license
One-time Early Access license. Includes Early Access updates. Final purchase flow and signed download will be added after Developer ID signing and notarization are complete.
Request Early AccessFor 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.