More than 400 mio. scientific documents from more than 11.000 content providers. BASE is one of the world's most voluminous search engines for academic web resources.
BASE (Bielefeld Academic Search Engine) is one of the world's most voluminous search engines especially for academic open access web resources. BASE is operated by Bielefeld University Library and provides more than 150 million documents from more than 7,000 sources. The index covers a wide range of disciplines and is continuously expanded by the BASE team.
45000 / day
50000 / day
2.8 pages per visit
Domain Rating
Domain Authority
Citation Level
English, etc
Offers a comprehensive search across millions of academic documents from various sources.
Allows users to conduct searches within specific disciplines for more targeted results.
Primarily indexes open access resources, making academic research freely available to everyone.
Provides advanced search options including filters by author, subject, and publication year.
Integrates with university libraries and digital collections for seamless access to resources.
Supports multiple languages, making it accessible to a global audience.
Allows users to export citations in various formats for easy reference management.
Features a user-friendly interface that simplifies the search process for users of all levels.
Regularly updates its database with new documents and sources to keep the content fresh and relevant.
Enables users to customize how search results are displayed, including sorting by relevance or date.
Bielefeld University Library
Over 150 million documents
More than 7,000 sources
Free access to academic resources
Used by researchers and students worldwide
Utilizes advanced search technology for efficient information retrieval
Collaborates with academic institutions and libraries globally
Recognized for its contribution to open access and academic research
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