Try Unpaywall.

Feb 08, 2019 · Lorrie Pellack

Tired of hitting a paywall when trying to access journal articles? A paywall is a method used by publishers to restrict access to users that have a paid subscription. Unpaywall is a service that maintains a database of links to full-text articles from open access sources all over the world. Unpaywall provides quick access to 10 million open access articles. The free browser extension is available for Firefox or Chrome. Surf the Internet and find articles you like. The Unpaywall icon quickly identifies if the article is freely available online and, if so, provides a direct link to it. Click the green tab and skip the paywall on millions of peer-reviewed journal articles. It's fast, free, and legal.

Try Unpaywall!

Once installed, look for the green symbol of an unlocked padlock (on the right side of the browser screen) to check for free versions.

For example, check out a Nature news article about Unpaywall here.

Or, the free version that Unpaywall finds here

Zotero users already benefit from Unpaywall, without needing to download the Firefox extension it. “If you save an item from a webpage where Zotero can’t find or access a PDF, Zotero will automatically search for an open access PDF using data from Unpaywall.”

Don’t forget – When logged into the ISU Library via My Library Card (or searching for journal articles while on campus), look for either the following logos to connect to full-text through ISU Library subscriptions. They supply a seamless link to requesting journal articles through Interlibrary Loan.