PlistEdit Pro 1.9.6 macOS

You can use PlistEdit Pro in your development work, and its built-in preference file browser lets you explore and tweak your system's settings to your heart's content.
Features:
* Full drag and drop and copy/paste support
* Full keyboard navigation of the interface
* The ability to view and edit a property list both in an outline and as raw text
* Support for editing both plist and JSON files
* Extensive Applescript support, for automating processes involving property list files
* Property list definitions, which make editing common forms of property lists less cumbersome
* Full multi-level undo support
* Powerful find/replace capabilities
* A built-in window to browse through your preference files
* Customizable fonts
Compatibility: macOS 10.13 or later
Homepage:

https://www.fatcatsoftware.com