Directory of Open Access Journals Alternatives

OA.mg is a search engine for academic papers, specialising in Open Access.

Access millions of research paper PDFs in one click. Save time navigating paywalls, logins and redirects.

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The world's largest ebook library

Legally read research papers behind paywalls.

Search engine for tens of millions of preserved research papers. This fulltext search index includes over 25 million research articles and other scholarly documents pres...

Open Source

The world’s largest collection of open access research papers

More than 200 mio. scientfic documents from more than 8000 content providers. BASE is one of the world's most voluminous search engines for academic web resources.

Quickreader is a book reading application for the leading smartphones that is combining the solution of two main issues of the book readers namely book reader and availability of books from the leading publication houses.

Library Genesis is a scientific community targeting collection of books on natural science disciplines and engineering.

Scopus is a bibliographic database containing abstracts and citations for academic journal articles.

From idea to impact: Navigate the links between grants, publications, datasets, clinical trials, patents, and policy documents.

Connected Papers is a unique, visual tool to help researchers and applied scientists find and explore papers relevant to their field of work.

Project Gutenberg offers free ebooks to download.