DogechatEXT is a free Chrome extension that facilitates decentralized chat rooms based on location using Nostr and Geohashing technologies. Users can connect with others nearby or globally without sacrificing privacy. The extension generates a Geohash from the user's location, enabling real-time communication in chat rooms formed by those sharing the same Geohash. With features like instant message delivery, a built-in emoji picker, and the ability to quickly 'teleport' to popular chat locations, DogechatEXT offers a unique chatting experience.

The extension promotes privacy and security by allowing users to bring their own keys or generate new ones locally, ensuring no tracking or data collection occurs. It is compatible with the Dogechat Android app, allowing seamless communication across devices. As an open-source project, DogechatEXT connects to multiple optimized relays for low-latency messaging, while users are advised to avoid sharing sensitive information due to the public nature of the protocol.