https://unpaywall.org/
An open database of 54,697,763 free scholarly articles. We harvest Open Access content from over 50,000 publishers and repositories, and make it easy to find, ...
https://chromewebstore.google.com/detail/unpaywall/iplffkdpngmdjhlpjmppncnlhomiipha
Unpaywall points you to legal, author-posted manuscripts that are hosted on university and government web servers.
https://research.lib.buffalo.edu/articleaccess/unpaywall
Sep 17, 2024 — Unpaywall is a browser extension for Chrome and Firefox that points you to legal, author-posted manuscripts that are hosted on university and government web ...
https://library.csustan.edu/unpaywall
Nov 26, 2025 — Unpaywall is a service which tracks and links to Open Access scholarly content s available for free online (i.e. not behind a paywall).
https://answers.library.american.edu/faq/247967
Apr 27, 2022 — What is Unpaywall? Unpaywall is an open database that provides links to more than 23 million open-access resources.
https://library.concordia.ca/help/using/extensions.php?guid=unpaywall
The Unpaywall browser extension provides links to full text scholarly articles available for free. A green tab with an open lock will appear on the right-hand ...
https://unpaywall.org/
We harvest Open Access content from over 50,000 publishers and repositories, and make it easy to find, track, and use. Get the extension.Read more
https://addons.mozilla.org/en-US/firefox/addon/unpaywall/
Jul 28, 2021 — Download Unpaywall for Firefox. Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access ...
https://www.reddit.com/r/GradSchool/comments/656vn8/unpaywall_how_a_browser_extension_could_shake_up/
Unpaywall and similar tools just uses "legal" free copies on the authors website that are usually hard to find and that's why it only works half the time.
https://www.un.org/en/library/unpaywall-and-open-access
Dec 14, 2020 — Open access is an international movement that promotes the free sharing of knowledge in society without barriers. In practice, promoters of open ...
https://knowledge.exlibrisgroup.com/Primo/Content_Corner/Central_Discovery_Index/Documentation_and_Training/Documentation_and_Training_(English)/CDI_-_The_Central_Discovery_Index/Integrating_Unpaywall_for_Discovery
Mar 13, 2025 — Unpaywall is a database of Open Access (OA) content that maintains OA links to full text articles and Open Access resources. For more ...
https://www.bentley.edu/library/in-the-know/go-beyond-library-databases-unpaywall-free-legal-way-access-research-articles
Oct 24, 2023 — Unpaywall is a free extension that you can easily download that will search for an open version of that article if it exists.
https://doaj.org/article/c9a4b9f283d9411698799af8ac2269ef
A new, free, open source browser extension, Unpaywall, indicates whether or not there is a free open access (OA) version of an article when users encounter a ...
https://nu.libanswers.com/faq/321201
Unpaywall is a browser plugin that allows users to access full-text PDFs of resources for free when available. The tool harvests content directly from over ...
https://libraryupei.ca/find-open-access-articles-unpaywall
The "Unpaywall" web browser plugin for Chrome and Firefox makes it easy for you to find if the article you need is available for free.