Master Data
Browse and download the master datasets used for dummy data generation. Reuse the CSV files for your own testing or integrations.
japanese_prefectures
Prefectures
Prefecture master data including JIS codes and each notation (Japanese, Kana, English).
japanese_municipalities
Municipalities
Municipality master data including JIS codes and each notation (Japanese, Kana, English). Includes prefecture information.
japanese_person_last_names
Person Last Names
Common Japanese family names with kanji, katakana, and hiragana variants.
japanese_person_first_names
Person First Names
Common Japanese given names with kanji, katakana, and hiragana variants.
japanese_country_codes
Country Codes
Country codes defined by the Ministry of Justice (ISO 3166-1 alpha-2).
japanese_occupation_codes
Occupation Codes
Occupation classification codes based on the Japanese Standard Occupational Classification.
japanese_employee_types
Employee Types
Master data for common Japanese employee types (regular, contract, temporary, etc.).
currency_codes
Currency Codes
Currency codes defined by ISO 4217, including 3-letter alphabetic codes, numeric codes, currency names, and minor units.
language_codes
Language Codes
Language codes defined by ISO 639-1, including 2-letter alphabetic codes and language names (Japanese and English).
hobbies
Hobbies
Master data for common Japanese hobbies. Includes a wide range of categories such as sports, music, reading, games, and art.
company_names
Company Names
Master data for fictional Japanese company names. Includes corporations, limited companies, LLCs, and various legal entities.
product_names
Product Names
Master data for common Japanese product names. Includes a wide range of categories such as electronics, home appliances, fashion, food, and more.
vegetables_fruits
Vegetables & Fruits
Master data for common Japanese vegetables and fruits. Includes a wide range of categories such as leafy vegetables, root vegetables, and fruits.
store_names
Store Names
Master data for fictional Japanese store names. Includes a wide range of categories such as cafes, ramen, bakeries, restaurants, izakaya, and more.