Batch zip-code lookup (client-side)
Paste CSV rows that contain a Japanese postal code — one row per line, the code can be in any column. Your data never leaves the browser: only the needed 3-digit shard files are fetched from our static API.
Paste CSV rows that contain a Japanese postal code — one row per line, the code can be in any column. Your data never leaves the browser: only the needed 3-digit shard files are fetched from our static API.