Local Music Organizer for Mac

Local Music Organizer (LMO) is a native macOS application for organizing, analyzing, repairing and enjoying large local music collections. It works alongside Apple's Music.app rather than replacing it, combining library diagnostics, duplicate detection, audio-quality analysis, file maintenance, conversion and original music players in one application.

LMO is designed for people who have collected music for years and want to understand, maintain and rediscover their own files without moving their collections to a streaming service or a proprietary cloud library.

Music Library Index and Dashboard

LMO builds a reusable local index of your Music.app library, including tracks, playlists, file locations and technical audio properties. The index makes repeated analysis of large collections more practical and can be refreshed as the library changes.

• Build and reuse a local index of Music.app tracks and playlists.
• Inspect library statistics, file locations and technical audio properties.
• Track playlist membership and relationships using persistent library identifiers.
• Refresh library information without unnecessarily rebuilding the entire index.
• Explore the collection through Library Dashboard, Library Map and Track Usage.

Duplicate Detection and Real-Time A/B Comparison

LMO includes separate tools for identifying different kinds of duplication within a music collection.

• Library Duplicates: Find repeated track records in the Music.app library.
• Playlist Duplicates: Identify repeated entries within individual playlists.
• Quality Duplicates: Find alternative versions of the same recording and compare their technical audio properties.
• Real-Time A/B Audio Comparison: Listen to two recordings and switch between them during playback to evaluate differences by ear.

Users can inspect formats, bitrates, sample rates and other available information before deciding which version to keep. The tools are designed for reviewing results rather than automatically deleting music.

Playlist Analysis and Shuffle Builder

Playlist Compare identifies shared and unique tracks across playlists. Track Usage shows where individual tracks appear, while Library Map provides a broader view of relationships throughout the collection.

Shuffle Builder creates listening selections from the local library using rules intended to reduce unwanted repetition and help rediscover music that rarely appears during ordinary shuffle playback.

Library Health, Missing Files and File Search

Health Check helps identify missing files, broken references, inconsistent library information and other problems that can accumulate over years of importing and reorganizing music.

• Detect missing local audio files and broken Music.app references.
• Inspect stored file locations and library metadata.
• Search authorized folders and local or external drives for physical audio files.
• Reveal located files in Finder.
• Review potential maintenance and repair actions.

File Search works with physical audio files independently of the Music.app library display, making it useful for collections distributed across multiple folders or storage devices.

Audio Inspector and Audio Authenticity

Audio Inspector examines technical properties of local audio files, including codecs, bitrates, sample rates, bit depth and other available information.

Audio Authenticity Analysis uses technical indicators to identify potentially suspicious audio sources, including possible lossy-to-lossless conversions and sample-rate upscaling.

These findings provide diagnostic clues rather than absolute proof of a recording's original quality or mastering history.

Repair / Convert and File Maintenance

Repair / Convert processes supported audio formats locally using included conversion and repair tools.

• Convert between supported audio formats.
• Process CUE-based albums and split tracks into individual audio files.
• Work with supported SACD/DSD sources.
• Preserve compatible metadata and artwork where supported.
• Review conversion results and detailed operation logs.
• Choose destination folders through macOS authorization.
• Verify output before deciding what to do with original files.

File Maintenance provides tools for reviewing physical files, locations and metadata-related problems. Artwork Check helps identify missing or problematic cover artwork.

Original Music Players and Live Visualization

LMO includes three original playback interfaces for enjoying local music, with real-time audio visualization driven by the audio being played.

• Glass Player: A customizable 3D audio spectrum visualization with adjustable geometry, glass-like materials, lighting, reflections, glow and other visual properties.
• Classic Hi-Fi Player: A vintage-inspired playback interface with a live graphic spectrum analyzer.
• Compact Player: A smaller playback interface for listening without occupying the full screen.

The players provide local audio playback controls and visual feedback, offering an additional way to explore and enjoy a personal collection without leaving LMO.

Local Processing and Privacy

Local Music Organizer is designed around locally stored music. Library indexing, diagnostics, file inspection, audio processing and playback take place on the Mac.

The application does not require a user account, upload music collections or collect personal analytics. Its private local index is separate from Music.app's own library database, and original music files remain under the user's control.

Included Tools

Library Index, Library Dashboard, Library Duplicates, Playlist Duplicates, Quality Duplicates, Real-Time A/B Audio Comparison, Playlist Compare, Library Map, Track Usage, Health Check, File Search, File Maintenance, Audio Inspector, Audio Authenticity Analysis, Artwork Check, Repair / Convert, Shuffle Builder and original audio players including Glass Player.

Requirements and Pricing

• Platform: macOS 14 or later, Apple Silicon and Intel.
• Distribution: Exclusively through the Mac App Store.
• Free trial: 3 days with full access.
• Lifetime unlock: Optional $29.99 one-time purchase.
• No subscriptions or automatic charges.

Local Music Organizer is intended for music collectors, audiophiles and long-time Music.app users who want to preserve, understand and enjoy large offline libraries while keeping control of their files.

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

Mac App Store: https://apps.apple.com/us/app/local-music-organizer/id6790746382