Kopernio vs. Unpaywall

Compare and discover for yourself the key differences of Kopernio and Unpaywall

 
   
Access Supported browsers Chrome, Firefox and Opera Chrome, Firefox
Supported content Both subscription and open access journal articles. Kopernio prioritizes publisher version of record PDFs, falling back on OA alternatives when no subscriptions are available. Partial support for book chapters. Open Access only
Supported platforms Integrates with over 20,000 academic websites. One click article access for PubMed search results. Thousands of institutional repositories, preprint servers, publishers, and websites like PubMed Central
Is it free? Yes, for individual researchers (Kopernio Premium upgrade based on referral) - read more Yes
One-click PDF access Yes Yes
Convenience Off-campus subscription access Yes, integrates with existing institutional infrastructure. In most cases already configured, but universities can supply. No, open access content only
Open Access articles Yes, uses Unpaywall API and additional processes to access OA content Yes, Over 50,000 unique online content hosting locations, including Gold OA journals, Hybrid journals, institutional repositories, and disciplinary repositories - read more
PDF storage Yes, PDF cloud storage in Kopernio Locker N/A
Search paper history Yes, PDFs accessed stored in the Kopernio Locker No
Reference management tool integration Yes, integrates with EndNote, Mendeley and Zotero - read more No
Dropbox sync Yes, when you upgrade to Kopernio Premium No
E-book support Partial, for publisher platforms where book chapters are hosted in same way as journal articles No
Paper sharing Yes, Kopernio supports easy sharing within research collaboration groups (as per STM Voluntary principles) - read more No
Paper citations Yes, copy a formatted citation in different styles including MLA and APA No
Curated citation metrics Yes, Web of Science Core Collection citation counts No
Assisted authentication Yes, credentials optionally encrypted and cached in user's local browser - read more N/A, only serves OA content
Predatory journal detection Use WOSCC citations to gauge quality of journal No
Library features Library setup No, works with most libraries by default. Libraries can amend as necessary at any time. No
ILL/DDS support Yes, via link resolver where available No
Customized Library branding Yes No
Customized Library communication Yes, via Kopernio Locker No
Supported aggregators Yes, via link resolver where available (including EBSCO, Proquest and JSTOR) N/A
EZproxy Yes N/A
Supported authentication methods Shibboleth, EZProxy, OpenAthens N/A
Two-factor authentication support Yes, multi-factor authentication support for Duo and Okta N/A
Analytics for libraries Yes, COUNTER compliant No

For a more detailed comparison from a librarian perspective please read Aaron Tay's blog post

Other comparisons

See how Kopernio compares to other research access browser plugins on our overview page

Disclaimer

The goal of this comparison is to enable both researchers and librarians to make an informed decision on the best tool to access full-text PDFs of journal articles and save time in doing so. We'd like to keep this comparison objective and are open for feedback and updates where applicable, please reach out to us at [email protected] and we will make sure it's updated as soon as possible.

Latest Update: November 2019