WKSS Japan Address Helper Wordpress Plugin - Rating, Reviews, Demo & Download
Plugin Description
WKSS Japan Address Helper helps WooCommerce stores in Japan fill address fields from a Japanese postal code.
The plugin does not use AjaxZip3 or any external lookup service during customer address entry. Address lookup is performed against a local postal code database stored in WordPress.
Features
- Supports WooCommerce checkout, cart, and account address forms.
- Supports WooCommerce Blocks checkout and cart address field updates.
- Imports Japan Post UTF-8 CSV and legacy KEN_ALL.CSV postal code data.
- Performs address lookup from a local WordPress database.
- Does not send customer address lookup data to an external service.
- Adds a settings link to the plugin list.
- Shows the plugin version on the settings screen.
External services
This plugin can download a postal code CSV file from Japan Post only when an administrator clicks the import button in the settings screen.
What the service is used for:
- Downloading official Japanese postal code CSV data.
What data is sent and when:
- The server sends a request to Japan Post to download the ZIP file only when an administrator manually runs the postal database update.
- No customer address, checkout data, or personal information is sent to Japan Post during address lookup.
Service provider:
- Japan Post
- Service information: https://www.post.japanpost.jp/service/search/zipcode/download/utf-zip.html
- Terms: https://www.post.japanpost.jp/
- Privacy policy: https://www.post.japanpost.jp/privacy.html
The plugin does not contact Japan Post or any external service during customer checkout/address entry. Customer address lookup uses the local database stored in WordPress.
Requirements
- WordPress 6.0 or later
- PHP 7.4 or later
- WooCommerce
Screenshots
No screenshots provided

