Cataloging drives and folders
Duplicate detection becomes more useful when the backup drive is not plugged in.
Catalog records the file information needed to keep an offline source in the search universe, while Find Copies can search the Mac index and catalogs. This lets you see that a project exists on an archive even when you cannot open the second copy. Treat an offline match as a lead: content-level comparison or opening the file still requires the source.
Open Catalog… from Everywhere’s menu bar item and add the drive or folder that matters. Let the first catalogue finish, then search by filename and browse the recorded folder tree. When the source is disconnected, the catalogue remains available and results are labelled offline so you know why opening the file requires reconnecting the drive.
Keep the original drive unchanged, use a clear catalogue name, and rescan after a large round of changes. Catalogues are for the places you choose; they do not silently turn a whole-Mac search into a second scan.
No. Reconnect the cataloged source to open or compare file contents.
No. It identifies copies; you decide what to keep and perform any deletion yourself.
Everywhere keeps track of every file on your Mac — including the folders Spotlight hides and drives you have unplugged. Free for a day, then $19 once.
Version 2.20.2 · macOS 13+ · 4.7 MB · notarised