The University of Tokyo OPAC is the system for searching the online union catalog database of books and journals held in the University of Tokyo.The input of data concerning books acquired before 1986 is under way. Webcat is the system for searching the online union catalog database of books and journals held in the university libraries in Japan. Crosssearching can be performed on both OPAC and Webcat by checking boxes of both two databases.

Website: https://opac.dl.itc.u-tokyo.ac.jp/opac/basic-query-e?mode=2&key=