Unpaywall by Unpaywall

Find legal open-access copies of paywalled scholarly articles. Checks millions of free papers and shows a green tab when you can read legally.

5 (3 reviews)

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About this extension

When a journal page is locked, Unpaywall looks up legal open-access versions from a large public database. If a free copy exists, a green tab appears so you can open the PDF and keep reading.

Detect paywalled research articles
Match them to legal open-access files
Open the free version in one click
Stay on the original publisher page until you choose to switch

Install to read more research without paying or breaking access rules.

Rated 5 by 3 reviewers

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