What is now available in Japanese
All ten tools are now fully available in Japanese, joining English and Chinese. The translations cover field labels, helper text, output guidance, and policy pages. The platform is the same; the surface language is now matched to the operator.
The language switcher is in the top right of the header on every page. Once you switch to Japanese, it stays selected across visits on the same browser. If you want to switch back, click the EN or 中文 button.
What we deliberately did not translate
Brand names, marketplace identifiers (Amazon US, Amazon JP, Etsy, eBay), and platform-specific jargon stay in their original form. Translating them would actually reduce clarity, because the buyers on each platform are searching in their own terms, not in yours.
Generated output is also returned in the target language of the request, not the UI language. So if you are browsing in English but generate for Amazon Japan, the output is in Japanese. This matches how operators actually work.