1. Mac
2. Developer Tools
3. XML Tools
4. Prefs Editor Download

Plist file editor.

Prefs Editor Screenshots

Prefs Editor Editor's review

Mac OS X 10.8 introduced a caching system for app preferences ("cfprefsd"). While this probably increases performances for apps, it makes it harder for developers to manipulate preference values quickly for testing, because making changes directly to the plist files in the ~/Library/Preferences folder does not work any more with editors such as "Property List Editor.app" and the similar one in Xcode. As of now (Dec 14, 2013), the only way to edit such preferences is by using the "defaults" command, which is rather difficult to use once it comes to editing dict or array entries.

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