Unpaywall

Legally get full text of scholarly articles as you browse.

Unpaywall - Access Scholarly Articles for Free

'Unpaywall' is a handy research tool that helps users freely access full-text PDFs of scholarly articles. It scours the web for author-posted manuscripts legally hosted on university and government servers, often termed as 'Green Open Access'. Unpaywall strictly adheres to publisher permissions and excludes papers posted outside of these permissions from its index.

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Extension stats

By: https://unpaywall.org

Users: 800,000+

Rating: 4.03

(247)

1 new ratings

Version: 3.98 (Last updated: 2021-07-30)

Creation date: 2020-02-28

Risk impact: Low risk impact

Risk likelihood:

Very low risk likelihood

Manifest version: 2

Permissions:

*://*.oadoi.org/*
storage

Size: 683.01K

URLs: Website

Ranking

# 696

Other rankings

#2978 in Workflow & Planning ▲ 5

#15 in article keyword 8 ▼ 2

#15 in free access keyword 71

#28 in legal keyword 6 ▼ 1

#45 in author keyword 9 ▲ 2

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Other platforms

Not available on Android

Unpaywall (v3.98)

4.38

(234) 70,344+

Not available on Edge

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Extension summary

Analyze keywords

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.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Works well and quickly when it finds available articles
Saves time in finding free versions of research papers
Helps access research articles that would otherwise be behind paywalls

Cons

Inconsistent effectiveness; doesn't work on many sites
Limited success rate; only retrieves a fraction of desired articles
Often leads to paywalls despite expectations

Most mentioned

Does not work on certain sites or journals
Some users experience that it only accesses a subset of articles
Positive feedback on saving time and aiding accessibility to science

User reviews

Could u open this website https://www.intelligenceonline.com news website

jaudat a7med, 2024-12-13

Works flawlessly, legally, and quickly. If you have complaints about it not working, then its because your trying to access information that is actually bought, this extension doesnt pirate, it finds free available workarounds and is amazing.