Open Access Helper Web
Education
Helps you find Open Access copies of paywalled scientific articles, by utilizing Unpaywall and other services
Users
7K
Rating
5.0
Reviews
2
7D Growth
+1K|16.7%
Stable signalNo paid features detectedMedium-risk permissions
Unpaywall
Legally get full text of scholarly articles as you browse.
Users900KCurrent public install base
Rating4.0Store average score
Reviews280Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
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2 assetsUnpaywall Media preview
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Start
3.98
Latest
3.98
7-day rating change
0.00
2026年7月13日2026年7月19日
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Version3.99
ManifestV3
Size670KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
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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.
Reviews
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Store average score4.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.4Average computed only from synced review bodies below
Reviews with text139Synced review bodies
Total ratings / reviews280Chrome Web Store public rating/review count
Store average score: 4.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Works awesomely
Works only on articles that are already free.
**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.
Not working.
It's kind of useful, but sometimes it fails to detect the available full versions of articles. I mainly spend my time on Pubmed and sometimes there's a paper there with a clear link to the full free version of the article on Pubmed central, but Unpaywall still says that there is no free full version of this paper available. When the Unpaywall padlock icon is open and green - yes it is useful to be able to just click it and go directly to the free full version. But when the padlock is grey and locked, I still do my own search for a free version (often successfully), but I thought that this searching on my own was what this extension was supposed to save me time on.
Best
faut s'abonner ou pas ? en tout cas ca marche pas
Funktioniert bei keiner der getesten Seiten
Doesn't work.
Only tried it on one article, worked first time, gave me the full article without paying. So super happy, thanks.