Browse no-APC journals by indexing database

Scopus is Elsevier's abstract and citation database. Coverage is decided by the independent Content Selection & Advisory Board against criteria on peer review, editorial policy, citedness and regularity…

AHCI is the arts and humanities stream of the Web of Science Core Collection.

ESCI covers peer-reviewed journals of regional importance and in emerging fields that meet Web of Science quality criteria. ESCI journals now receive a Journal Impact Factor.

MEDLINE is the NLM's curated subset of biomedical journals, selected by the Literature Selection Technical Review Committee and indexed with MeSH terms.

PubMed is the US National Library of Medicine's free search interface over biomedical literature, comprising MEDLINE, PubMed Central and additional NCBI content.

PMC is the NLM's free full-text archive of biomedical and life sciences literature. Deposit in PMC satisfies many funder public-access mandates.

SCIE is the science stream of the Web of Science Core Collection. Journals in SCIE receive a Journal Impact Factor.

SSCI is the social sciences stream of the Web of Science Core Collection. Journals in SSCI receive a Journal Impact Factor.

Clarivate's Web of Science Core Collection covers the science, social science and arts & humanities citation indexes. Journals are selected against 28 quality and impact criteria and are…

Google Scholar is a freely accessible index of scholarly literature across disciplines. It is inclusive rather than selective, so coverage alone is not a quality signal.

Crossref is the DOI registration agency for scholarly content. Crossref membership indicates a journal assigns persistent identifiers to its articles.

BASE is one of the largest search engines for academic open access web resources, operated by Bielefeld University Library.

Dimensions is a linked research database from Digital Science covering publications, grants, patents and clinical trials.

EBSCO produces subject databases licensed to libraries worldwide; inclusion places a journal in front of institutional readers.

Index Copernicus is a journal indexing service that publishes an annual ICV score. Its selectivity is debated, so treat coverage as supplementary rather than decisive.

OpenAIRE aggregates open access research outputs across Europe and supports compliance with EU funder mandates.

ProQuest aggregates scholarly databases and full-text collections used widely in academic libraries.

ROAD is the ISSN International Centre's directory of open access scholarly resources holding an ISSN.

Scilit is a comprehensive, free scholarly database maintained by MDPI that indexes publications from Crossref and PubMed.

Sherpa Romeo aggregates publisher open access and self-archiving policies.

Ulrichsweb is a bibliographic directory of serials used by libraries to verify that a periodical exists and is refereed.

WorldCat is OCLC's global union catalogue of library collections.

AGRIS is the FAO's international information system for agricultural science and technology.

AJOL hosts and indexes peer-reviewed journals published in Africa.

NASA ADS is a digital library portal for astronomy, astrophysics and physics.

CABI Abstracts covers applied life sciences, agriculture and the environment.

CAS indexes the chemical sciences literature and maintains the CAS Registry.

CAplus is the CAS bibliographic database of chemistry and related sciences.

ERIC is the US Department of Education's index of education research and information.

EconLit is the American Economic Association's index of economics literature.

IEEE Xplore delivers literature in electrical engineering, computer science and electronics.

Inspec is the IET's index for physics, electrical engineering, electronics, communications and computing.

J-Gate is an electronic gateway to journal literature, widely used across South Asia.

Latindex is a regional information system for scholarly journals of Latin America, the Caribbean, Spain and Portugal.

MathSciNet is the American Mathematical Society's reviewing database for the mathematical sciences.

PsycINFO is the American Psychological Association's database of literature in the behavioural and social sciences.

RePEc is a collaborative bibliographic database for economics.

Redalyc is a non-commercial open access index for Latin America, the Caribbean, Spain and Portugal.

SciELO is an open access publishing and indexing programme covering Latin America, Spain, Portugal and South Africa.

The UGC-CARE list identifies journals recognised by the University Grants Commission of India for academic assessment.

arXiv is an open access preprint archive for physics, mathematics, computer science and related fields.

zbMATH Open is an abstracting and reviewing service for pure and applied mathematics.