Collection One

Collection One is a macOS app for managing a private music library.

The app helps you organise artists, albums, releases and physical collection items. CSV imports can be reviewed before they are saved, JSON backups can be exported and restored, and missing cover or metadata information can be handled in focused quality workflows.

Features:
- Manage artists, albums, releases and collection items
- Add new items with the camera barcode scanner
- Narrow search to artist, album and other fields
- Save and delete frequently used library views
- Filter by format, genre, rating, location and item status
- Review missing data, missing covers and missing years
- See result counts in the status bar when filters are active
- Print a compact library overview with covers
- Import CSV files with preview and validation
- Export and restore JSON backups
- Track locations, formats, genres, ratings and notes
- Mark items as in collection, missing, lent, sold or removed
- Review metadata suggestions before applying them

Collection One stores your library locally on your Mac. Network access is used only for cover and metadata lookup.