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Journal index

One record for each journal that papers in our copy of PubMed name, with its title, abbreviations and ISSNs from NLM's journal list. Each record counts the journal's papers by year and by publication type: retracted papers, retraction notices, errata, expressions of concern, reviews and trials. It also counts the papers with a copy in PMC, an NIH grant or a ClinicalTrials.gov number. Counts start in 1959 and leave out preprints, because our copy of PubMed holds few papers from before 1959 and about half the preprints until it is rebuilt from NLM's files.

2 sources

Search Journal index.

A journal's title or abbreviation, its ISSN with or without the hyphen, or its NLM ID. Case, accents and punctuation do not matter. Other words find the journals whose title or abbreviation has a word starting with each one.

36,649 journals from PubMed and NLM's journal list.

Try searching

Journal index 36,649

Most papers from 2021 to 2025 first1 to 20 of 36,649

Show the results as
JournalNLM IDPapers, 2021 to 2025Papers since 1959RetractedWith a copy in PMC
Scientific reports

Sci Rep

101563288

2045-2322

151,169306,089530302,917
Cureus

Cureus

101596737

2168-8184

88,704118,284254118,269
PloS one

PLoS One

101285081

1932-6203

84,992339,2761,441339,119
International journal of molecular sciences

Int J Mol Sci

101092791

1422-0067

73,534115,04688115,046
Nature communications

Nat Commun

101528555

2041-1723

47,42492,9997989,240
Sensors (Basel, Switzerland)

Sensors (Basel)

101204366

1424-8220

44,38680,8621980,862
International journal of environmental research and public health

Int J Environ Res Public Health

101238455

1661-7827

41,11366,4321566,396
Journal of clinical medicine

J Clin Med

101606588

2077-0383

38,31453,7261553,724
Heliyon

Heliyon

101672560

2405-8440

37,47843,36556743,364
The Science of the total environment

Sci Total Environ

0330500

0048-9697

37,39975,5752332,208
Materials (Basel, Switzerland)

Materials (Basel)

101555929

1996-1944

36,68457,8632657,862
Molecules (Basel, Switzerland)

Molecules

100964009

1420-3049

35,78464,9736764,973
Frontiers in immunology

Front Immunol

101560960

1664-3224

33,44556,7525156,752
International journal of biological macromolecules

Int J Biol Macromol

7909578

0141-8130

30,17851,832278321
ACS applied materials & interfaces

ACS Appl Mater Interfaces

101504991

1944-8244

29,21269,687315,081
Frontiers in psychology

Front Psychol

101550902

1664-1078

27,74153,8149753,814
Cancers

Cancers (Basel)

101526829

2072-6694

26,91337,7662137,766
Frontiers in oncology

Front Oncol

101568867

2234-943X

26,75039,29610239,296
Environmental science and pollution research international

Environ Sci Pollut Res Int

9441769

0944-1344

26,68148,7693454,865
Nutrients

Nutrients

101521595

2072-6643

23,49939,7331839,733

Request

GET /api/journal-index/v1

A journal's title or abbreviation, its ISSN with or without the hyphen, or its NLM ID. Case, accents and punctuation do not matter. Other words find the journals whose title or abbreviation has a word starting with each one.

Active journals, those with a paper from 2025 or later, or the journals with at least one retracted paper.

No key needed

Code

Show the call in
curl "https://conductscience.org/api/journal-index/v1"

Response

The first 2 of this page's 20 results. GET /api/journal-index/v1

{
  "data": {
    "total": 36649,
    "results": [
      {
        "id": "101563288",
        "title": "Scientific reports",
        "name": "Scientific reports",
        "summary": "306,089 papers in PubMed from 2011 to 2026, 151,169 of them from 2021 to 2025. 530 retracted; 302,917 with a copy in PMC.",
        "record": "/library/journal-index/101563288",
        "abbreviation": "Sci Rep",
        "issn": "2045-2322",
        "years": "2011 to 2026",
        "counts": {
          "papers": 306089,
          "papers_2021_2025": 151169,
          "retracted": 530,
          "retraction_notices": 519,
          "errata": 9403,
          "concerns": 16,
          "reviews": 2870,
          "trials": 5449,
          "pmc": 302917,
          "nih": 20506,
          "trial_numbers": 1243
        }
      },
      {
        "id": "101596737",
        "title": "Cureus",
        "name": "Cureus",
        "summary": "118,284 papers in PubMed from 2012 to 2026, 88,704 of them from 2021 to 2025. 254 retracted; 118,269 with a copy in PMC.",
        "record": "/library/journal-index/101596737",
        "abbreviation": "Cureus",
        "issn": "2168-8184",
        "years": "2012 to 2026",
        "counts": {
          "papers": 118284,
          "papers_2021_2025": 88704,
          "retracted": 254,
          "retraction_notices": 259,
          "errata": 486,
          "concerns": 58,
          "reviews": 14865,
          "trials": 0,
          "pmc": 118269,
          "nih": 514,
          "trial_numbers": 25
        }
      }
    ],
    "columns": [
      {
        "key": "title",
        "label": "Journal",
        "under": "abbreviation"
      },
      {
        "key": "id",
        "label": "NLM ID",
        "under": "issn"
      },
      {
        "key": "counts.papers_2021_2025",
        "label": "Papers, 2021 to 2025"
      },
      {
        "key": "counts.papers",
        "label": "Papers since 1959"
      },
      {
        "key": "counts.retracted",
        "label": "Retracted"
      },
      {
        "key": "counts.pmc",
        "label": "With a copy in PMC"
      }
    ],
    "order": "Most papers from 2021 to 2025 first",
    "kinds": {
      "all": 36649,
      "active": 11508,
      "with-retractions": 3748
    }
  },
  "release": "journal-index-2026-11-06-0.2.0",
  "terms": [
    {
      "source": "NLM's journal list",
      "license": "NLM's",
      "notice": null,
      "short": "NLM's terms"
    },
    {
      "source": "PubMed",
      "license": "NLM's terms",
      "notice": null,
      "short": "NLM's terms"
    }
  ],
  "next": "/api/journal-index/v1?page=2",
  "request_id": "5ygdQ57iFPWzbth-"
}

What it holds

Holds
36,649 journals
From PubMed and NLM's journal list. Counted 14 Nov 2026.
Release
6 Nov 2026
journal-index-2026-11-06-0.2.0
Checked
Passed automated checks: of 30 random journals, NCBI matches papers from 1959 to 2025 for all 30, 29 exactly, retracted papers for 30 and PMC copies for 29; a recount of 39,677,584 papers was equal
Access
Open
No account. 60 calls a minute from one address.

The one list in a journal's record, and how many journals have it.

  • Retracted papers

    Papers whose PubMed record is typed Retracted Publication, with the notice PubMed links.

    3,74810.2% of journals

Sources 2

  • NLM's journal listNLM's terms
  • PubMedNLM's terms
Each source's terms
  • NLM's journal listNLM's
  • PubMedNLM's terms

Genes

NCBI Gene

One gene with its proteins, patents, drugs, trials, grants and papers.

Trials

ClinicalTrials.gov

Search clinical trials by condition, drug, outcome or NCT number, with the results each one posted.

Trial comparisons

ClinicalTrials.gov

Comparisons of the groups of clinical trials, such as a risk ratio or a number needed to treat, calculated from the counts each trial posted.

Sequences

Patent publications

Paste a sequence and see the patents that disclose it.

Opens sequences.conductscience.org

Instruments

The conductscience.com catalog

One instrument from the ConductScience store with the tests, measures and species it is used for, the papers that used it, and the MeSH topics of those papers.

Drugs and targets

Open Targets

One drug with its targets, the diseases it is studied for, and the trials that name it, with their comparisons, papers and cognitive tests.

Diseases

Open Targets

One disease with the drugs studied for it, the targets those drugs act on, and the trials that study it, with their comparisons and papers.

Companies

ClinicalTrials.gov

One company with the trials it leads or helps run, the drugs those trials test, the conditions they study and the organizations it runs them with.

Cell lines

Cellosaurus

One cell line with the problems Cellosaurus records for it, its relatives, the cell banks that hold it, and the papers that used it.

For software

Read Journal index from software.

Every answer on this page is also JSON, under /api/journal-index/v1. No key.

GET https://conductscience.org/api/journal-index/v1?q=nature

Ask an assistant

  • How many papers has Nature published each year, and how many of them were retracted?
  • Which papers in PLOS ONE were retracted, and which notice retracted each one?
  • Which journal has the ISSN 0028-0836, and what is its NLM ID?
  • How many of JAMA's papers have a copy in PMC, and how many list an NIH grant?