Codex App Manager is a cross-platform desktop utility for installing, updating, launching, and uninstalling the official OpenAI Codex desktop application. It detects existing installations and prepares appropriate maintenance operations for the user's operating system. On macOS, it supports incremental updates through Sparkle, downloading smaller packages when compatible updates are available. Windows users can manage MSIX or portable installations with installation health checks. The application verifies update integrity and supports rollback when certain macOS update operations fail. Its distribution system uses regional mirrors to improve accessibility, particularly in mainland China. Users can also browse, preview, and apply customizable Codex interface skins. Built with Tauri, Rust, and React, it supports Windows and macOS on Intel and ARM-based hardware.
Features
- One-click installation, launching, updating, and clean removal of the official OpenAI Codex desktop application
- Incremental macOS updates using Sparkle delta packages with signature verification and rollback protection
- Windows MSIX and portable installation management with configurable directories and post-installation health checks
- Region-aware download mirrors with automatic routing between Cloudflare R2 and China-accessible infrastructure
- Built-in application self-updating with verified packages and GitHub fallback download sources
- Codex interface customization through downloadable skins, live theme previews, and reversible appearance changes