CodeX Authenticator is a mobile security app designed to simplify two-factor authentication for users. It enables users to manage time-based one-time password (TOTP) accounts in a modern, user-friendly interface. The app streamlines onboarding by allowing users to import accounts via QR code scanning, eliminating manual setup keys. It supports both Android and iOS through a single Flutter codebase, ensuring a consistent experience across platforms. The app generates 6-digit OTP codes that refresh every 30 seconds for secure login. The dashboard acts as a vault, displaying authentication accounts in an organized manner with search functionality for easy account retrieval. Developed using Flutter and Dart with GetX for routing, the app integrates third-party libraries for QR scanning and local persistence. Overall, CodeX Authenticator offers a practical, lightweight solution for managing two-factor authentication codes.