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Find ETDs


International Thesis and Dissertation Search

BASE is a registered OAI Service Provider run by the Bielefeld University Library. It provides a unified search interface to over 3000 OAI repositories. These repositories cover all academically relevant material, not just theses and dissertations.
To search all content, use the Basic Search option.
To restrict your search to theses and dissertations, use the Advanced Search option.
An aggregation of around 4 million ETD records from around the world compiled in the NDLTD Union Catalog. The list of participating institutions is available at (Institutions wishing to participate click here.)
VTLS provides a dynamic search and discovery platform (driven by Chamo Discovery), which allows you to sort by relevance, title, and date. In the current implementation, faceted searches are available by language, continent, country, date, format, and source institution. Additional facets, such as subjects or departments, may be added if desired.
  • Please note: Elsevier has discontinued the Scirus service as of March 31st, 2014.
  • These search engines harvest theses and dissertations from virtually all registered open-access repositories:

Regional and Country-specific Thesis and Dissertation Repositories and Search Engines

This index includes nearly 100,000 United States dissertations from 1933 through 1955. (The print index was compiled annually for the National Research Council and The American Council of Learned Societies by the Association of Research Libraries.)
A search tool for accessing ETDs produced in Brazilian universities.
A portal developed jointly by the University of Chile, the Universites de Lyon, Montreal, and Alexandrie, and the University of Geneva for accessing full text ETDs from many countries, including Bolivia, Brazil, Canada, Chile, France, Hong Kong, Mexico, Peru, Spain, and the United States.
A discovery service for open access research theses awarded by European universities.
This portal provides access to ETDs and research publications written at 26 institutions in Scandinavia.
This British Library portal provides access to virtually all ETDs awarded by UK universities, and offers a scan-on-demand service for paper theses.
All Hong Kong theses since 1941.
This search portal provides access to ETDs produced in the Netherlands, as well as access to a variety of other research and data sets.
This search portal provides access to ETDs produced in South Africa.
The National Library of Australia harvests ETD Metadata from Australian universities and provides a search services through its portal.
A new, emerging, open access model for United States theses and dissertations
Both of these repositories are run by ProQuest. Both include most recent North American ETDs and selective coverage for other regions of the world.
Many university libraries provide password access to the first repository, which is the most comprehensive but consists mostly of theses that are NOT Open Access. The link above also provides access for individuals without a connection to a research library.
The second repository is ProQuest's repository of Open Access theses and dissertations.
The RCAAP's mission is to promote, support and facilitate the adoption of the open access movement in Portugal. RCAAP The project aims to: increase the visibility, accessibility and dissemination of academic activity and Portuguese scientific research, facilitating the management and access to information about scientific production and integrate Portugal into a set of international initiatives. This portal offers a union catalog with digital contents from more than 30 institutions.
A union catalog of Canadian theses and dissertations, in both electronic and analog formats, is available through the search interface on this portal.