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BASE (Bielefeld Academic Search Engine) vs CORE: catalog facts
BASE (Bielefeld Academic Search Engine)	CORE
Free Free to search in the browser.	Free Searching is free; CORE is a not-for-profit service with additional offerings for…
Web	Web
Focused on open-access academic content Draws on thousands of institutional repositories	Very large collection of open access papers Full text as well as metadata
Anti-scraper check requires modern JavaScript and can slow page loads Covers repository content, so some paywalled literature will be missing	Limited to open access content Search only; no AI summaries described in the research
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.