Unpaywall is a free browser extension that finds full-text versions of research papers across the web.
Best Kopernio Alternatives ranked by AI · updated May 2025
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Kopernio helps you access research articles and organize your references. Works seamlessly with your browser.
Price: Free basic version, Paid premium
Top 3 Kopernio alternatives
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Sci-Hub is a website that provides free access to research papers.
Pros
- Free access to research papers
- Easy to use interface
Cons
- Legal issues with publishers
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