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Official Description

PLIST Editor is an easy to use, fast editor for property list (.plist) data. In a clean and uncluttered interface, it allows you to quickly create, visualize, modify, and save your .plist documents.
PLIST Editor can be used as a alternative to Xcode, having more features, using less disk space, less memory and starting up much faster.

Core features of the application:
• Open property list files which are in XML, binary or OpenStep format.
• Save property list files in XML or binary format.
• Edit the elements of a property list.
• Change the type of the elements.
• Cut, copy, paste, duplicate, delete and reorder the elements.
• Full undo and redo.
• Full support to find and replace text in the property list elements.
• Support for pasting plist data, either from raw XML or from Xcode.
• Copy elements as Swift objects so you can use them in Xcode.
• Copy elements as Objective-C objects, both modern and classic syntax, so you can use them in Xcode.
• Copy elements as JSON data, both indented and compact JSON.
• Shift elements to left and right.
• "Add" and "Remove" buttons on the outline item which is selected or tracked by mouse.
• Option in Preferences to choose the default font, along with the font size.
• Option in Preferences to "Alternate Row Colors" in the outline.
• Ability to increase and decrease font size for better readability, per each document individually.
• Full screen support.
• Versions support.
• Option, in Preferences, to disable the Auto Save (and Versions)..
• Detect when the document is changed by another application. In Preferences you have the ability to customize what to do when this happens: "Keep PLIST Editor's version" or "Ask how to resolve" or "Update to modified version".