i-FunBox - General file management software for iPhone and other Apple products
plist Editor - Reads and writes both text and binary .plist files.
iExplorer - iExplorer lets you easily transfer music, playlists, text messages, files and more from any iPhone, iPod, or iPad to a Mac or Windows computer and iTunes.
PlistEdit Pro - PlistEdit Pro is the most advanced property list and JSON editor written for macOS.
iMazing - iMazing lets you transfer music, files, messages, apps and more from any iPhone, iPad, or iPod to a computer, Mac or PC. Manage and backup your iOS device simply without iTunes. (was DiskAid)
Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.