CodeX: Code AI for Xcode

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CodeX is a macOS application designed to integrate artificial intelligence capabilities into the Xcode development environment. It operates through a desktop app and a dedicated Xcode Source Editor extension named code.ai. Users enable the extension via System Settings and access features from Xcode’s Editor menu. The tool allows developers to select code or comments and run commands that insert AI-generated output directly into their projects.

Key functionalities include generating custom code from natural language prompts, creating Swift Codable structs from pasted JSON, and converting Objective-C headers and implementations to Swift 5+. It also assists in modernizing codebases by converting UIKit view setups to SwiftUI equivalents. Additional utilities involve detecting retain-cycle risks, suggesting readability improvements such as simplifying if-chains to switch statements, validating JSON formatting, and automatically adding documentation comments to selected types and functions. The product targets Swift and SwiftUI developers, teams migrating from Objective-C, and those seeking automated refactoring and documentation support. A subscription is required for unlimited feature access.