Keigo Copilot is an AI-powered Chrome extension tailored for professionals engaging with the Japanese market. It transforms English text into Japanese Keigo, ensuring communication is both respectful and culturally appropriate. Users can highlight text and convert it instantly, streamlining the communication process. The tool offers three modes: 'Email Full' for complete emails, 'Email Partial' for quicker responses, and 'Messenger' for casual chats, catering to varied communication scenarios.

Designed with a zen-inspired interface, Keigo Copilot is user-friendly and aesthetically pleasing. It allows users to save personalized presets, making it efficient for frequent tasks. The extension requires an OpenAI API key and incurs costs based on usage, but it serves as an invaluable resource for international professionals and business owners looking to foster respectful relationships in Japan.