About NDL Search

NDL Search allows you to search for materials and digital materials held by the National Diet Library,
You can request for browsing or copying, and use a variety of other services.
You can also search for materials held by libraries in Japan with which has data linked.

Searchable Materials

Materials held by the National Diet Library

Searches will be performed on materials held by and digital materials available at the National Diet Library.


Searchable Materials

  • Materials held by the National Diet Library (paper, recorded media, microforms, etc.)
  • Digital materials of the National Diet Library (including those whose access is limited within the library)
  • E-journals, etc. subscribed to by the National Diet Library

Collections of Other Libraries in Japan

You can search for materials and digital materials held by libraries across the country that have data links.


Libraries that can be searched

  • Prefectural libraries and government-designated city libraries (including digital archives)
  • Special libraries (including digital archives)
  • Academic information institutions (including digital archives)
  • Publication information on paper books and e-books

For more information, please see List of Affiliated Databases for details.

Materials available online

The National Diet Library and other libraries have digital materials that can be read on the Internet.


Searchable Materials

  • Digital materials available at the National Diet Library that can be viewed on the Internet (including materials that require user registration)
  • Digital materials available on the Internet from libraries in Japan with which the Library has data linkage
  • Articles from J-STAGE, IRDB, and CiNii Research that can be accessed via the Internet

Access the materials you want to read by the most appropriate means

Reading materials on the Internet

Available online :This tag is applied to digital materials that are available online (User registration may be required.)

Request a copy of the material

National Diet Library :This tag is applied to some materials that can be ordered copy by mail (remote photoduplication service, fee required). To use this service, you need to become a Registered User of the National Diet Library.

Other Libraries in Japan :If you would like to use materials with this tag, please contact your local library.

Read materials at the library

National Diet Library :This tag is applied to some materials that may be browsed in person by visiting the National Diet Library.

Other Libraries in Japan :If you would like to use materials with this tag, please contact your local library