PrefEdit
PrefEdit is a macOS utility for viewing, searching, and editing preference domains and property list files used by the system and apps.
What is PrefEdit?
PrefEdit is a native macOS utility for inspecting and editing the preference data that macOS and many apps store in property list files. It gives users a direct view of preference domains, helps them search for settings, and shows which values are currently effective for a user account. The app is useful for advanced Mac users, administrators, and developers who need more control over settings than standard System Settings or in-app preference panels provide. In addition to working with the macOS preferences database, it can open and edit plist files that follow Apple’s property list format. PrefEdit also helps users trace how preference values are resolved through macOS search paths and priorities, which can be helpful when troubleshooting configuration behavior. PrefEdit is published by Marcel Bresink for macOS.
Key features
- Browse preference domains used by macOS and installed apps
- Search for specific settings and domain names
- View which preference values are currently effective for your user account
- Open and edit Apple property list files in plist format
- Inspect how macOS resolves preference search paths and priorities
- Find the preference domain associated with an application
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Safety overview
Status: Use with caution
PrefEdit is legitimate system utility software, but it is designed to change low-level app and macOS preference data. That access is normal for its purpose, yet incorrect edits can cause apps to behave unexpectedly or make settings harder to undo. Use it only if you understand the setting you are changing, and consider backing up important preferences or noting original values before editing.
Recommendation: Keep PrefEdit if you actively manage advanced macOS settings, troubleshoot preference problems, or work with plist files. If you do not use those functions, you can remove it without affecting macOS itself, though any preference changes you already made will remain until changed again.
Common paths
/Applications/PrefEdit.app
Preference paths
~/Library/Preferences/com.bresink.system.prefedit.plist
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