Duplicate Manager
Duplicate Manager is a macOS utility for finding duplicate and large files so you can review extra copies and free storage space.
What is Duplicate Manager?
Duplicate Manager is a Mac file-management utility that helps users find duplicate files and large files across folders and storage locations. It is designed for cleanup tasks such as reviewing repeated photos, videos, music, documents, and other files that take up unnecessary space. The app lets you scan selected locations, compare files with different matching modes, and review results before deciding what to keep. It also supports workflows for sorting duplicate groups and removing unwanted copies after inspection. Duplicate Manager is aimed at people who want a dedicated duplicate finder on macOS rather than a broader disk analysis tool. Greenworldsoft publishes the app for Mac users who want a focused way to identify redundant files and organize storage more efficiently.
Key features
- Scan folders to find duplicate files
- Find large files that use significant storage space
- Review duplicate groups before removing copies
- Compare files with different matching modes
- Choose which copy to keep during cleanup
- Work with common file collections such as photos, music, videos, and documents
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
This app’s file-scanning behavior is consistent with its purpose, since it needs access to the folders you choose in order to compare files and show duplicates. Review results carefully before deleting anything, because duplicate-finder tools can remove files you still need if you accept selections too quickly. On newer versions of macOS, you may be asked to allow access to protected folders so the app can scan them.
Recommendation: Keep Duplicate Manager if you use it to clean up storage or review duplicate files. If you no longer need a dedicated duplicate finder, you can remove it; doing so only affects the app and any cleanup workflows you use with it.
Common paths
/Applications/Duplicate Manager.app
Cache paths
~/Library/Caches/com.greenworldsoft.duplicatemanager
Preference paths
~/Library/Preferences/com.greenworldsoft.duplicatemanager.plist
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