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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Search for scientific information as quickly as possible while researching and writing scientific papers. Save notes for reference.
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It's Incredibly terrible...
Супер расширение!
it helped me to get research article.
unbelievably handy, I'll pay for this! Chrome is being d0u(hy as usual & wants to remove this, I hope either it gets resolved or to get a git, etc link and I'll load it on developer mode.
Good. I found a science paper pdf what was locked with payed subscription
First paper I tried was unlocked, amazing!! Thank you for making science more accessible :)
Ne fonctionne pas sur les sites français, aucun intérêt
No vale para nada
I was looking for a specific article that I had read some while ago and got to access it for free... when I tried recently it was all behind a paywall! This extension really helped me, and even if it can only get 50% of articles, or just the ones that are out there somewhere for free, it's really handy.
total garbage. Sci hub is way better