Xctool
An extension for Apple's xcodebuild that makes it easier to test iOS and macOS
SwiftInitializerGenerator
Xcode Source Code Extension to Generate Swift Initializers
xTextHandler
Xcode Source Editor Extension Tools (Xcode 8 Plugins)
synx
A command-line tool that reorganizes your Xcode project folder to match your Xcode groups
CleanClosureXcode
An Xcode Source Editor extension to clean the closure syntax