E-journals and E-books available at the University of Tokyo can be accessed from this E-journal & E-book Portal.
For off-campus access, please click "Access to Databases (EZproxy)".

Please enter a journal title in the search window.  The "Search for keywords in e-resources" option below the search window is recommended for users who want to search journals from publisher's name.

TREE(UTokyo Resource Explorer) is simply a service which allows you to search for academic information from one search window. You can search for books, electronic and paper, and materials all at once without worrying about choosing a database.
※It mainly searches within the University of Tokyo OPAC and databases that the university has contracted with (which permission was given from the providers). There are materials such as Japanese newspaper databases which are outside of TREE search, please use individual databases according to the purpose.
※When you want to find specific books and journals, please also use the University of Tokyo OPAC and E-journal & E-book Portal.

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 underway.)　You can search journals by title (journal title) and books by title (book title) or author.
From August 2021, you can also search e-journals and e-books available at the University of Tokyo.
This service is also available for smartphones. 

Please click on "Login" to use the database. "Login using GakuNin" is not available.

This database includes an encyclopedia of Japan, dictionary tools, links to academic sites, etc. Its integrated search platform covers a large number of materials, such as the Encyclopedia Nipponica, and the Random House English-Japanese Dictionary.

You can collectively search for information on articles, bibliographies, and dissertations provided by CiNii. Research data and research project information are also searched.

This is a database of articles in major academic journals of all subject fields. It allows you to find articles citing these works or that share a common reference, as well as to limit a search by keywords.　In addition to journals, conference proceedings, books, research data, etc. are included.
Contract Editions of Web of Science Core Collection (1900-Current)
・Science Citation Index Expanded（SCIE） (1900-Current)
・Social Sciences Citation Index（SSCI） (1900-Current)
・Arts & Humanities Citation Index（AHCI） (1975-Current)
・Emerging Sources Citation Index（ESCI） （For the past 5 years. Back files are not included.）
・Book Citation Index（BKCI） (2005-Current)
・Conference Proceedings Citation Index（CPCI） (1990-Current)
・Current Chemical Reactions (1985-Current)（Institut National de la Propriete Industrielle since 1840 including structural equation data）
・Index Chemicus (1993-Current)

The Scopus contract expired on March 31, 2023. For alternative databases, please use Web of Science Core Collection, etc.

EBSCOhost is a platform where you can search multiple databases e.g.
・Academic Search Complete
・Bibliography of Asian Studies
・Business Source Complete
・CINAHL Plus with Full Text
・Communication Abstracts
・EconLit
・ERIC
・GreenFILE
・Historical Abstracts
・Index to Legal Periodicals and Books (H.W. Wilson)
・Library, Information Science & Technology Abstracts
・Linguistics Abstracts Online
・MEDLINE
・MLA Directory of Periodicals
・MLA International Bibliography
・Peace Research Abstracts
・Philosopher's Index
・PsycArticles（APA ）
・PsycInfo（APA ）
・Race Relations Abstracts
・Regional Business News
・SocINDEX with Full Text
・Teacher Reference Center
・American Antiquarian Society (AAS) Historical Periodicals Collection: Series 1 - Series 5

ProQuest is a platform where you can search the following 17 databases.
1. Acta Sanctorum‎
2. Agricultural & Environmental Science Collection‎
3. Coronavirus Research Database‎
4. Digital National Security Archive‎
5. Early Modern Books‎
　 ・Early English Books Online‎
　 ・Early European Books‎
6. Ebook Central‎
7. Luthers Werke
8. Patrologia Latina‎
9. Periodicals Archive Online‎
10. Periodicals Index Online‎
11. ProQuest Dissertations & Theses Global
12. ProQuest Historical Annual Reports
13. ProQuest Historical Newspapers: Chinese Newspapers Collection‎
14. ProQuest Historical Newspapers: The Times of India
15. PTSDpubs
16. Publicly Available Content Database‎
17. Social Science Premium Collection
　　・Criminology Collection
　　　◦Criminal Justice Database
　　　◦National Criminal Justice Reference Service (NCJRS) Abstracts Database
　　・Education Collection
　　　◦Education Database‎
　　　◦ERIC
　　・International Bibliography of the Social Sciences (IBSS)‎
　　・Library & Information Science Collection
　　　◦Library & Information Science Abstracts (LISA)‎
　　　◦Library Science Database
 　　・Linguistics Collection
　　　◦Linguistics and Language Behavior Abstracts (LLBA)‎
　　　◦Linguistics Database
　　・Politics Collection‎
　　　◦PAIS Index‎
　　　◦Policy File Index
　　　◦Political Science Database‎
　　　◦Worldwide Political Science Abstracts
　　・Social Science Database‎
　　・Sociology Collection‎
　　　◦Applied Social Sciences Index & Abstracts (ASSIA)‎ 
　　　◦Sociological Abstracts
　　　　・Social Services Abstracts‎
　　　　・Sociological Abstracts
　　　◦Sociology Database‎

Asahi Shimbun article database. (Renewed and renamed from "Kikuzo II Visual" in April 2022)

Basic contents
・Full Text Database（1985-present）
・AERA（1988-present）
・Shukan Asahi（2000-present）
・Image Database of Post-WWII Showa Period (1945-1989) and Heisei Period (1989-1999) of the Asahi Shimbun Reduced-size Facsimile Edition
・Contemporary Words Chiezo

Optional contents A
・Image Database of Pre-war Showa Period (1926-1945) of the Asahi Shimbun Reduced-size Facsimile Edition
・Image Database of Meiji and Taisho Period (1879-1926) of the Asahi Shimbun Reduced-size Facsimile Edition
・Who's Who Database
・Historical Photo Archive
・Asahi Graph（1923-1956）
・English-language News Database（2001-present）

Optional contents B
・Regional pages (1935-1999)
・Regional Pages Beta Version (Full-text digitization of regional pages from 1991-1996)

This database provides the search and full-texts of articles on newspapers published by Nikkei since April, 1975.

A sequel to the "Mainichi News Pack". In addition to full text searches and access to articles of Mainichi News and Weekly Economist, searches for images of Mainichi from 1872 (the first issue) to 1999 are also possible. Searches for results of opinion polls conducted yearly by Mainichi Press since 1945 are also possible.

Renewed and renamed from "YOMIDAS REKISHIKAN" in April 2024.

A database of Yomiuri Shimbun newspaper articles from the first issue in 1874 to the latest issue (dated the previous day).

The pressreader contract expired on March 31, 2024.

UTokyo Repository is the system to store and provide digital resources created by members of the University of Tokyo community. Its main purpose is to develop digital collections, make them available online, and preserve them for long-term access.

As one of the initiatives of “The University of Tokyo Digital Archives Construction Project”, this system allows you to search across the collections and databases that have been digitized through this project, as well as valuable collections and databases that have been independently made public by departments within the university.

This database includes information on the title, author, and summary of PhD dissertations submitted at UTokyo. Please use UTokyo Repository for PhD dissertations published after 2014.

An extensive full-text database comprised of subjects such as social science and humanities, natural science, medical science, design, and computer science.

This database contains bibliographical information of the computer science.

An electronic version of the complete printed text of Acta Sanctorum, from the edition published in sixty-eight volumes by the Societe des Bollandistes in Antwerp and Brussels.

Agricola is including bibliographic information of materials on agriculture.

This collection provides bibliographic search and full-texts from more than 2000 journals in the fields of Agriculture, Animal Husbandry, Forestry and Ecology. An integrated database with AGRICOLA and Environmental Science Database. *Formerly: ProQuest Agricola plus text, ProQuest Agricultural Science Collection

This database contains major full-text contents of academic journal articles, dissertations and conference paper from Taiwan and China, mainly since 1991.
E-journals in the fields of Bio-Agriculture and basic applied sciences are available in full text.

During the sixteenth century Protestant authors had grasped the importance of winning over the souls and minds of the French people from the outset and the production of Genevan presses was therefore mainly in French. This unique selection of writings reflects the Catholic response to Calvinism, with works attacking the precepts of Calvinism and those defending the Catholic doctrine against condemnations by Calvinists.

PsycArticles, from the American Psychological Association (APA), is a definitive source of full-text, peer-reviewed scholarly and scientific articles in psychology.
Select PsycArticles on the Choose Databases menu, and click Select.

PsycInfo , from the American Psychological Association (APA), contains nearly 4.0 million citations and summaries of scholarly journal articles, book chapters, books, and dissertations, all in psychology and related disciplines, dating as far back as the 1800s. 98 percent of the covered material is peer-reviewed. Journal coverage, which spans 1887 to present, includes international material selected from more than 2,500 periodicals in more than 27 languages. Linked to the PsycArticles full-text database.
Select PsycInfo on the Choose Databases menu, and click Select.

Archives Unbound. European Colonialism in the Early 20th Century: French Colonialism in Africa: From Algeria to Madagascar, 1910-1930 is available on Archives Unbound. This collection comprises correspondence, studies and reports, cables, maps, and other kinds of documents related to U.S. consular activities. U.S. Consulates were listening posts reporting on the activities of the French colonial government and the activities of the native peoples. Highlights include the beginning of an anti-colonial movement and problems along the Moroccan-Algerian border.

Archives Unbound. Evangelism in Japan: Correspondence of the Board of Foreign Missions, 1859-1911 is available on Archives Unbound.
This database consists of the records of the foreign missions of the Presbyterian Church in Japan which report social conditions in Japan and efforts to spread the gospel during the nineteenth century.

Archives Unbound. Global Missions and Theology is available on Archives Unbound.
This collection documents the broad range of Nineteenth-Century religious missionary activities, practices and thought in the United States by reproducing pivotal personal narratives, organizational records, and biographies of the essential leaders, simple missionaries, and churches.

Archives Unbound. Shanghai Municipal Council: The Municipal Gazette, 1908-1940 is available on Archives Unbound. As the official organ of the Shanghai Municipal Council, The Municipal Gazette was established in 1908 and ceased publication in 1942. Released every Friday, the Gazette published notifications, departmental reports, letters from readers, minutes of Council meetings, municipal budget, monthly summary of revenue, financial statements on income and expenditures, policies and orders formulated by the council. This is a complete collection of the Gazette, containing all 35 volumes.

Archives Unbound. The Observer: News for the American Soldier in Vietnam, 1962-1973 is available on Archives Unbound. The Observer was a weekly newspaper published by the Command Information Division of the U.S. Military Assistance Command’s Office of Information. It was the official organ of the Military Assistance Command, and it carried official news about and for American troops in Vietnam. The Military Assistance Command spread more than 80,000 weekly Observers among all points in Vietnam in which American troops were domiciled.

Archives Unbound. WWI and Revolution in Russia, 1914-1918 is available on Archives Unbound.
This collection documents the Russian entrance into World War I and the Revolution in Russia in 1917 and 1918. The documents consist primarily of correspondence between the British Foreign Office, various British missions and consulates in the Russian Empire and the Tsarist government and later the Provisional Government.

arXiv is an open-access archive containing preprints in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.