A curated list of Drupal modules created specifically to address unique Japanese needs, standards, and integrations.
Missing a module? The website is open-source, you can contribute here.
Search API Japanese Normalizer
This module provides a processor for the Search API that standardizes variations in Japanese text, such as full-width and half-width characters or different Katakana representations. By normalizing these inputs, it significantly improves search accuracy and consistency for Japanese content.
Developed by: Studio Umi
Search API Japanese Tokenizer
Unlike English, Japanese text does not use spaces to separate words, which can make standard search indexing imprecise. This module solves that issue by using natural language processing (supporting TinySegmenter, MeCab, and Sudachi) to correctly segment and index Japanese text at the word level, rather than relying on basic N-gram methods.
Developed by: Studio Umi
Search API Kana Convert
This module acts as a wrapper for PHP’s mb_convert_kana function, allowing the Search API to convert between various Japanese character types (Hiragana, Katakana, Zenkaku, and Hankaku). This normalization ensures that a user searching in one character type can still find content written in another.
Developed by: Studio Umi
Commerce PayPay
This module integrates PayPay, a widely used mobile payment service in Japan, into Drupal Commerce. It allows customers to pay via QR codes and supports essential e-commerce features such as authorization, capture, refunds, and a sandbox mode for testing.
Developed by: remi-simaer
LINE Add Friend
This module integrates LINE’s Social Plugins to display an “Add Friend” button on your Drupal site. It allows visitors to easily follow a LINE Official Account and offers flexible configuration options, including button size, language settings, and block placement.
Developed by: remi-simaer
JapaneseEraFormatter
Designed for sites requiring traditional date formatting, this module converts standard Western calendar dates into the Japanese era format (e.g., Reiwa, Heisei, Showa). It provides a custom field formatter compatible with any datetime field in Drupal.
Developed by: umekikazuya
