Codex - Code AI For Xcode

Codex AI brings AI directly into Xcode through a native Source Editor Extension helping Swift and SwiftUI developers write, refactor, and convert code faster.

Xcode Extension

Enable in System Settings -> General -> Login Items & Extensions -> Codex AI -> Enable Xcode Source Editor. Then use it from Xcode's Editor menu. Select code or a comment and run any command. Output is inserted automatically.

Commands

Custom PromptHighlight a comment or instruction and Codex generates the code and places it directly beneath your selection.

Objective-C to Swift

Select .h/.m files and convert to modern Swift 5+. Methods, properties, and blocks are fully translated.

Generate Codable Model

Select JSON and get Swift Codable structs instantly. Handles nested objects and arrays.

Refactor & Simplify

Restructures logic for readability -- converts if-chains to switch, adds guard for early exits, simplifies map and filter, without changing behavior.

Check Retain Cycles

AI analyzes selected code for retain-cycle risks and suggests weak reference fixes.

UIKit to SwiftUI

Select UIKit view code and convert buttons, labels, and stacks into equivalent SwiftUI views.

Validate JSON

Select JSON code and run the Validate JSON command directly from the Xcode Editor menu.

Create JSON From Model

Select a Swift Codable model and Codex generates a matching sample JSON payload based on its structure.

Desktop App

A standalone AI assistant with simple command examples, clear guidance, and a built-in JSON

Text Editor with instant error detection.

BUILT FOR

· Swift and SwiftUI developers

· Teams migrating from Objective-C to Swift

· Developers who want AI-powered refactoring

· Anyone generating Codable models from JSON

--- WHY CODEX ---

AI lives inside Xcode -- not outside it.

Write better Swift and SwiftUI code faster, reduce manual work, and ship with confidence.

Terms of Use (EULA): https://docs.google.com/document/d/1SDvW8Wo6H4yZPFt9tEKY0dIdHzXM5OgMOvUwnr_oR7k/preview