Open Educational Resources (OER): Open access journals

A community-curated directory that indexes and provides access to high quality, open access, peer-reviewed journals

From the United Nations, AGRIS links to millions of published articles and gray literature.

An open-access archive of more than 2 million scholarly articles in physics, math, computer science, biology, finance, statistics, electrical engineering, systems science, and economics.

An open access publisher of 300+ peer-reviewed journals in biomedical sciences

While ERIC primarily provides citations, it does have more than 350,000 full-text items, including conference papers, reports, journal articles, and books.

An open access publisher of a suite of peer-reviewed journals across all areas of science and medicine.

A free full-text archive of biomedical and life sciences journals at the National Library of Medicine

Provides more than 1.1 million research papers in 65+ disciplines.

List of fully-open access journals from DeGruyter.

Open access journals published by Elsevier

Includes Springer’s portfolio of 200+ peer-reviewed fully open access journals across all areas of science

List of fully-open journals from Taylor & Francis.

Biological, chemical, and health sciences open-access journals from Wiley.