: Similar to Unpaywall, it helps users find legal, free versions of research articles that are behind paywalls. Specialized Academic Search Engines
To download research papers and academic articles for free as of late 2022 and early 2023, several specialized websites and tools are recommended: Download Zh092022 pdf
: A Chrome extension that finds the DOI of a paper on your current page and automatically searches for it across various open-access repositories like ArXiV and the Internet Archive . : Similar to Unpaywall, it helps users find
: Many researchers upload their full-text papers here; you can often download them directly or request the full text from the authors. Helpful Browser Extensions & Tools : Similar to Unpaywall