Automatically search for open access options for paywalled outputs:
- CORE Discovery – An in-browser extension from CORE (see above) – also recommends OA articles on a similar subject if the article is paywalled.
- GetPDF – Coming soon from Open Access Button.
- Kopernio – Provides a ‘get PDF’ button on your browser.
- 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.