Legally get full text of scholarly articles as you browse.

Latest Version

Version
3.98
Update
July 29, 2021
Size
667KiB
Developer
unpaywall.org
Category
Users
800,000+
Rating
4.02439 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
*://*.oadoi.org/*
Storage
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Unpaywall Extension

Get full text of scholarly articles as you browse. When you view a research article, Unpaywall automatically looks for a copy in our index of 20 million free, legal fulltext PDFs. If we find one, click the green tab to read the article.

Unpaywall points you to legal, author-posted manuscripts that are hosted on university and government web servers. We are pointing to versions that have been posted with the full and explicit authorization of the publishers themselves.

These free, author-posted manuscripts are often called \"Green Open Access\" and are a longstanding and completely legal part of the scholarly communications ecosystem. The majority of scholarly journals permit authors to \"self-archive\" their papers on university and government web servers. It's these legally self-archived papers that Unpaywall helps users find. Any papers posted outside of publisher permissions are NOT included in our index.
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Source Manifest.json

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User reviews

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Sergio N. Bonacina (ID: 000000d05780d60f) Voted 1 ★ - Updated 11/06/2023 una mentira ya lo desinstalo

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Jo me (ID: 00000067c480be9c) Voted 5 ★ - Updated 10/18/2023 Works awesomely

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Mari Leigh (ID: 000000c105ee331e) Voted 5 ★ - Updated 10/16/2023 I love it. It can't always find free versions of research papers/journals, which is annoying, but most of the time for me it can. As much as I'd like to support the researchers and buy their research journals/papers, I cannot pay upwards of $40USD for a single article. I definitely suggest if you are a student who needs to use credible sources for research papers, I highly recommend this app. Like I said, it can't always find free versions, but it's worth a try :)

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Natanael Leitão (ID: 0000002246753335) Voted 1 ★ - Updated 10/09/2023 Works only on articles that are already free.

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Adrian Augustus (ID: 000000858e9ea418) Voted 3 ★ - Updated 09/20/2023 **Note its for scientific journals not mainsteam media like Wall Street Journal.** The extension name could perhaps be a little less generic. As for use in journals I typically access - this works, rarely. To concur with some of the feedback here - only occasionally does it procide access to a pdf, sometimes it fails when a pdf is available almost at the top of a google search, sometimes a bit more digging is required. Nice idea though.