CodeX : Code AI for Xcode

Code AI – Your AI-Powered Xcode Companion

This is a macOS app that supercharges Xcode with AI, featuring a Xcode Source Editor extension called code.ai and a desktop app with an AI assistant, command examples, and step-by-step guides. Write better Swift and SwiftUI code faster and more efficiently.

Xcode Extension (code.ai)

Enable the code.ai extension in System Settings → Extensions → Xcode Source Editor, then use it from Xcode’s Editor menu. Select code or comments and run a command. AI output is inserted directly into your project.

Custom Prompt – Select a comment or instruction such as "write a function to add two integers." The extension generates code and inserts it below the selection.

Generate Model Code – Paste JSON, run the command, and get Swift Codable structs. Handles nested objects and arrays.

Objective-C to Swift – Convert selected .h/.m code to Swift 5+. Methods, properties, and blocks are translated and inserted below.

Check Retain Cycle – AI detects retain-cycle risks in the selection and suggests fixes, such as [weak self].

Refactor and Simplify – Refactor code for readability: if-chains to switch, guard early returns, simpler map/filter, without changing behavior.

Convert UIKit to SwiftUI – Select UIKit view setup (labels, buttons, stacks) and get equivalent SwiftUI views.

Validate JSON – Validates the selection as JSON and pretty-prints it with 2-space indentation. Runs locally.

Create JSON From Model – Select a Swift Codable model and AI generates a sample JSON payload that matches the structure.

Document Code – AI adds documentation comments (/// or /** */) to types, functions, and properties in the selection.

Perfect For

Swift and SwiftUI developers

Teams migrating from Objective-C to Swift

Anyone who wants AI-assisted refactoring and documentation

Developers who need Codable models from JSON or sample JSON from models

Download app, enable the code.ai extension, and bring AI into your Xcode workflow.

Note: A subscription plan is required for unlimited access to all features.

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