How to Find Open Access Copies of Preprint Articles Behind Paywalls
Install any of these as Google Chrome browser extensions or in Firefox. When you find an article blocked by a paywall, use one of these tools to search for an OA version. Read an article evaluating some of these options.
Open Access ButtonFree, legal research articles delivered instantly or automatically requested from authors.
Lazy ScholarOpen any scholarly article and Lazy Scholar gets to work searching for a free full text. Lazy Scholar can even integrate with your library to find full texts even when you’re off campus.
KopernioEndNote Click harnesses your library subscriptions to get you the highest quality PDFs. When your subscriptions do not grant you access, EndNote Click will search for an open access alternative from its vast database of Open Access articles.
UnpaywallAn open database of 30,443,167 free scholarly articles. We harvest Open Access content from over 50,000 publishers and repositories, and make it easy to find, track, and use.
OSF PreprintsLeading preprint service providers use this open source infrastructure to support their communities.
