Yes, web scraping is legal in Japan when conducted within the bounds of copyright law, the Unfair Competition Prevention Act (UCPA), and the Personal Information Protection Act (PIPA). Businesses must avoid scraping protected content or personal data without consent, as unauthorized access or extraction may trigger civil or criminal liabilities under the UCPA’s provisions on trade secret misappropriation and the Penal Code’s unauthorized computer access prohibitions. The 2026 amendments to the UCPA, slated for enforcement by the Japan Fair Trade Commission (JFTC), will tighten restrictions on automated data extraction from protected databases, emphasizing prior consent for commercial use.
Key Regulations for Web Scraping in Japan
- Copyright Law (Act No. 48 of 1970): Scraping copyrighted material without permission violates Article 21, unless the use falls under fair use exceptions (e.g., private study or criticism). Automated extraction of large datasets from protected works risks infringement, as courts interpret “reproduction” broadly under Article 2 (1) (xv).
- Unfair Competition Prevention Act (UCPA): Under Article 2 (1) (xii), scraping trade secrets or proprietary data from protected databases constitutes unfair competition if it involves unauthorized access or extraction. The 2026 UCPA amendments will explicitly criminalize scraping protected “electronic data” without legitimate purpose, with penalties up to ¥5 million or imprisonment.
- Personal Information Protection Act (PIPA): The Personal Information Protection Commission (PPC) prohibits scraping personal data from websites without consent under Article 23. Businesses must comply with the 2022 PIPA revisions, which mandate anonymization for scraped datasets and prior notification to data subjects under Article 27-3.
Additional compliance risks arise under the Act on the Protection of Personal Information Held by Administrative Organs and sector-specific regulations (e.g., financial data under the Banking Act). Organizations should implement technical safeguards (e.g., rate limiting) and contractual controls to mitigate UCPA exposure.