XcodeGen - Command line tool that generates your Xcode project from a spec file and your folder structure.
Xgen - Swift package for generating Xcode workspaces & playgrounds.
NoMoreTypo - Typo checker for Xcode.
Struct - Tool for iOS and Mac developers to automate the creation and management of Xcode projects.
XcodeProj - Read, update and write your Xcode projects.
index-import - Tool to import swiftc and clang index-store files into Xcode.