Okuricart extends WooCommerce for Japanese online stores (especially gift and food shops) with Japan-specific checkout features. The free version provides a reliable, well-designed “Japanese-style checkout”.

Furigana (kana reading) fields, placed right after the name, auto-generated from the kanji as the customer types and fully editable
Postal code to address autofill (uses the postal code data stored on your site, with an optional external API fallback)
One-click import of Japan Post’s nationwide postal code data from the settings screen, with an optional monthly automatic update
Remember input for next time (stored on this device only, no account required, opt-in, off by default)
Free-shipping bar (“¥X more for free shipping”) on the cart and checkout, using the free shipping threshold already set in your WooCommerce shipping zones
Noshi (gift label) request at checkout: a “Request noshi” checkbox and a free-text field for the label wording, shown on the order screen, emails and order details
Delivery date and time slot request at checkout: the customer picks from dates built from your settings (lead time, selectable window, closed weekdays and specific closed dates), so holidays never appear as options
Legal notice helper for Japan: build a “Specified Commercial Transactions Act (特定商取引法に基づく表記)” page from your details via the [okuricart_tokushoho] shortcode, and show the required pre-order confirmation notice (returns/cancellation) at checkout
Block checkout (Cart & Checkout Blocks) and classic (shortcode) checkout support, HPOS compatible

The premium version (sold separately) will add a shipping rate engine (carrier rates and estimated delivery dates), full noshi support (wording/mizuhiki rules, vertical preview, per-line labels), multiple shipping destinations, invoice documents, and repeat ordering.

External services

This plugin can connect to the zipcloud postal code API (https://zipcloud.ibsnet.co.jp/) to look up an address when the entered postal code is not found in the postal code data stored on your site.

What is sent: only the 7-digit postal code the customer entered at checkout (no name, address, or other personal data).
When: only when the postal code is not found in the site’s own postal code data. This can be turned off under WooCommerce > Settings > Okuricart (“External API fallback”).
zipcloud terms of use: https://zipcloud.ibsnet.co.jp/rule/api

This plugin can download the nationwide postal code data file from Japan Post (https://www.post.japanpost.jp/) to fill the on-site postal code database.

What is sent: a plain HTTP GET request for the public data file (utf_ken_all.zip). No personal data or site information is sent.
When: only when you click “Import nationwide data” under WooCommerce > Settings > Okuricart, and (if “Monthly auto-update” is on) once a month in the background. Japan Post’s site terms: https://www.post.japanpost.jp/zipcode/dl/readme.html

Okuricart – Japanese Checkout for WooCommerce

External services