About JAIRO

JAIRO is an abbreviation of Japanese Institutional Repositories Online.


JAIRO is a succeeding service of JuNii+ (test version) (Japanese) in which academic information (journal articles, theses or dissertations, departmental bulletin papers, research papers, etc.) accumulated in Japanese institutional repositories* can be searched for cross-sectionally.
The National Institute of Informatics (NII) collects metadata of institutional repositories, according to an application from the person in charge of the management of the institutional repository of each institution.
As of October 2008, JAIRO allows about 540,000 contents in 84 institutional repositories to be searched for.
(For the latest information, see the top right of the search screen, etc.)


For the number of accesses to JAIRO, see JAIRO Usage Statistics.
For detailed information on Japanese institutional repositories and statistical analysis information on their contents, see NII Institutional Repositories DataBase Contents Analysis System.


* Institutional Repository: An electronic archive system installed for research institutions, such as universities, to collect, accumulate, and store their intellectual products in an electronic form and disclose them for free
In order to strengthen the formation, securement, and information transmission of academic contents, NII, in close cooperation with academic institutions, such as universities, assists formulation of institutional repositories in universities, etc. and cooperation among them, as part of CSI (Cyber Science Infrastructure) (Japanese) promotion. For details, see the website of NII Institutional Repositories Program.


System Requirements

The following browsers are recommended.

  • Windows
    • Internet Explorer 7/8/9
    • Firefox 15
    • Safari 5
    • Google Chrome 21
  • Mac OS
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    • Firefox 15

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