Geo Tier Builder is a Chrome add-on designed for webmasters and media buyers to create tiered country lists and GEO segments for ad targeting and traffic management. It offers a comprehensive toolset that allows users to build geo-targeting rules for various platforms, including TDS systems and Cloudflare, all while ensuring privacy through its offline functionality. This tool supports 249 countries and includes features such as tier classification and region filtering, making it a versatile choice for managing country-specific data effectively.

The add-on provides a host of functionalities like instant filtering, customizable presets, and multiple export templates. Users can easily toggle between allow/block modes and utilize smart import features for seamless integration of existing data. With no network requests and a commitment to user privacy, Geo Tier Builder ensures that all operations are conducted locally, making it a reliable choice for traffic managers seeking a robust geo-targeting solution.