Finding Open Access material

A selection of resources about Open Access and finding/using OA publications. 

These tools are for individual use – always read the terms and conditions before registering.

For more resources see Cambridge University’s search guide Places to find open access content.


Journals and Books


Browser extensions

Downloadable ‘apps’ for your internet browsers. Automatically search for open access options each time you come across a paywalled article or book.

  • Open Access Button – Automatically detects paywalled articles and presents an open access alternative (for example a version in an institutional repository).
  • Unpaywall – An extension which searches Unpaywall’s database of millions of free scholarly articles each time you encounter a paywall.
  • CORE Discovery – An in-browser extension from CORE (see above) – also recommends OA articles on a similar subject if the article is paywalled.
  • Kopernio – Provides a ‘get PDF’ button on your browser and will also access content which the library has paid for – Search the institution list for University of Oxford.
  • GetPDF – Coming soon from Open Access Button.