ESO Addon Manager is a free, open-source desktop application for organizing modifications for The Elder Scrolls Online. It allows players to search, install, and remove addons available through ESOUI. The application automatically detects addons already installed in the game's directory. Dependency checking identifies missing libraries and suggests additional installations when required. Users migrating from Minion can import their existing managed addon collections. Optional automatic updates keep Tamriel Trade Centre pricing information and HarvestMap data current. Its interface offers light and dark themes for different preferences. Built with Rust, the application runs on Windows, macOS, and Linux, including Steam Deck devices. It provides a cross-platform alternative to Java-based addon managers.