Journal Indexing Explained: SCIE, SSCI, AHCI, ESCI and Scopus

Home › Journal Guides › Journal Indexing Explained

Quick answerJournal indexing means a journal has been selected for a citation database such as Web of Science (SCIE, SSCI, AHCI, ESCI) or Scopus. Indexing shows that the journal passed the database’s quality checks, and it makes the journal’s papers searchable and their citations countable. Universities and funders often require publications in indexed journals.
FreeNo AIReal published papers

Find indexed journals for your paper

Paste your title, keywords or abstract. We match it against 28,582 journal papers published by PhD researchers on ScholarsColab and show where the closest work appeared, with each journal’s indexing (SCIE, SSCI, AHCI, ESCI, Scopus, JCR 2024).

Try:

How it works: no AI or language model is used. Your words are matched against the titles of real published papers by our mentors; journals are ranked by how many closely matching papers they published. Indexing comes from the SCIE, SSCI, AHCI, ESCI, Scopus and JCR 2024 lists, matched by journal name; “not found in our indexing lists” does not prove a journal is unindexed. Always check a journal’s scope and current indexing before submitting.

Want a PhD expert to shortlist and handle the submission? Our Journal Selection & Submission service matches your manuscript to up to 5 suitable journals by indexing and quartile. Check price →

The main indexing lists at a glance

List Owner What it covers
SCIE (Science Citation Index Expanded) Clarivate, Web of Science Science, technology and medicine journals that meet its quality and impact criteria
SSCI (Social Sciences Citation Index) Clarivate, Web of Science Social science journals, such as management, economics, psychology and education
AHCI (Arts & Humanities Citation Index) Clarivate, Web of Science Arts and humanities journals
ESCI (Emerging Sources Citation Index) Clarivate, Web of Science Journals that meet Web of Science’s quality criteria but not (yet) its impact criteria
Scopus Elsevier A large multidisciplinary database of journals, conference proceedings and books
JCR (Journal Citation Reports) Clarivate The annual report that gives Web of Science journals their impact factor and category rankings
The indexing lists used on this site contain 9,456 SCIE journals, 3,545 SSCI, 1,814 AHCI, 8,926 ESCI and 46,945 Scopus titles, and the JCR 2024 file lists 21,848 journals.

Where researchers actually publish: real data

To show what indexing looks like in practice, we checked every journal in which PhD researchers on ScholarsColab have published against these lists.

ScholarsColab mentors have published journal papers in 12,521 different journals. 4,616 of them (37%), holding 55% of those papers, appear in at least one of the SCIE, SSCI, AHCI, ESCI, Scopus or JCR 2024 lists, and 3,260 appear in more than one.
Journals used by our mentors, by indexing listScopus4,391JCR 20243,266SCIE2,219ESCI826SSCI227AHCI39
Number of journals in which ScholarsColab mentors have published that appear in each list. A journal can appear in several lists.

Many journals appear in several lists at once, for example in SCIE, Scopus and JCR together. The finder above shows every list a journal appears in.

Of our mentors’ journal papers, 31% appeared in Web of Science core journals (SCIE, SSCI or AHCI), 7% in ESCI journals, 16% in journals found only in Scopus, and 46% in journals not found in any of these lists.
Where our mentors’ journal papers appeared, by indexingWeb of Science core (SCIE / SSCI / AHCI)31.2%8,925 papersESCI6.7%1,906 papersScopus only16.3%4,662 papersNot found in the lists45.8%13,089 papers
Share of ScholarsColab mentors’ journal papers by the indexing of the journal (Web of Science core takes priority, then ESCI, then Scopus). Source: ScholarsColab Journal Finder data, updated daily.

For papers published 2010–2022, the median number of citations was 32.0 in Web of Science core journals, 14.0 in ESCI journals, 8.0 in Scopus-only journals and 3.0 in journals not found in the lists. This is an association: journals that pass stricter selection also tend to attract stronger work, so indexing alone does not cause citations.

Why indexing matters

  • Recognition: universities, funders and hiring committees often count only papers in indexed journals.
  • Visibility: indexed journals’ papers appear in database searches used by researchers worldwide.
  • Quality signal: indexing means the journal passed checks on peer review, ethics, regularity and editorial standards.
  • Metrics: impact factor (Web of Science) and CiteScore (Scopus) are calculated only for indexed journals.

How to check a journal’s indexing yourself

  1. Web of Science: search the journal’s name or ISSN in Clarivate’s free Master Journal List.
  2. Scopus: search the free Scopus “Sources” page, and check that coverage is current, not discontinued.
  3. Match the ISSN, not just the name: some journals copy the names of well-known titles.
  4. Be wary of claims you cannot verify, such as “indexed in Google Scholar” or unknown indexing services, which do not indicate quality.

Common mistakes researchers make

  • Trusting the journal’s own website for its indexing status.
  • Assuming “Scopus” means current coverage; Scopus discontinues titles that fall below its standards.
  • Treating ESCI as equal to SCIE when your institution specifically asks for SCIE or SSCI.
  • Choosing a journal only for its indexing without checking that its scope fits your paper.

Frequently asked questions

What is an indexed journal?

An indexed journal has been selected for a citation database such as Web of Science or Scopus after meeting that database’s quality criteria. Its papers become searchable and their citations are counted.

What does SCIE indexed mean?

It means the journal is included in Clarivate’s Science Citation Index Expanded, part of the Web of Science Core Collection, which covers science, technology and medicine journals meeting its quality and impact criteria.

Is Scopus better than Web of Science?

Neither is simply better. Scopus covers more titles; Web of Science is more selective. Which one matters depends on what your university or funder asks for.

Is Google Scholar an indexing database?

Google Scholar finds scholarly material automatically, without a selection process, so appearing in Google Scholar is not a sign of journal quality or indexing.

How can I find indexed journals in my field?

Use the Journal Finder on this page with the Web of Science or Scopus filter, then confirm each suggestion on the official lists.

Want a PhD expert to choose the journal with you?

Our Journal Selection & Submission service shortlists up to 5 journals that match your manuscript, indexing requirement and target quartile, and handles the submission. If your paper was rejected before, a Manuscript Audit shows what to fix first.

More journal guides

About the data on this page. Journal suggestions and statistics come from the Google Scholar publication lists of PhD researchers who mentor on ScholarsColab, updated daily. Indexing is matched by journal name against the SCIE, SSCI, AHCI, ESCI, Scopus and JCR 2024 lists; a journal “not found in our indexing lists” may still be indexed under a different name, so always confirm on the official Web of Science Master Journal List or Scopus source list. Figures describe this group of researchers and may not apply to research as a whole.