Unpaywall scours the web for free versions of scientific papers

techcrunch.com

20 pointssharp112 comments

If you are wondering how to do that manually, just type "<name of the article> filetype:pdf" in Google or DuckDuckGo. It worked like a charm last time I tried.

It sounded similar to https://oadoi.org/ . Turns out this tool uses their database.

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