CiNii Research is a comprehensive academic information discovery service developed and maintained by the National Institute of Informatics (NII), Japan. It serves as an integrated platform for searching and accessing scholarly literature produced by Japanese universities, research institutes, and academic societies, as well as selected international publications.
The database aggregates a wide range of research outputs, including journal articles, conference papers, dissertations, research reports, and institutional repository contents. By interlinking metadata from multiple sources—such as institutional repositories, publisher platforms, and national research databases—CiNii Research enables efficient literature discovery, citation tracking, and exploration of research networks across disciplines.
CiNii Research plays a critical role in enhancing the global visibility of Japanese scholarship and supporting open science initiatives. It is widely used by researchers, educators, students, librarians, and policy professionals for academic literature searches, bibliometric analysis, and cross-institutional research assessment, making it a key infrastructure in Japan’s scholarly communication ecosystem.