PeerJ

PeerJ Inc. · United States · Est. 1939

ISSN2167-8359eISSN2167-8359

SJR Q1✓ WOS SCIE✓ Scopus / SJR✓ DOAJ✓ Open Access

Impact Factor & Quartile · Web of Science (JCR)

✓ Indexed in the Web of Science Core Collection (SCIE) — Clarivate publishes an official Journal Impact Factor and JCR quartile for this journal.

See the official Impact Factor & quartile on the journal’s page ↗

The Impact Factor & JCR quartile are licensed by Clarivate — we link you to the official source instead of reprinting a number that can go out of date. Open metrics below: SCImago Q1. Source: Clarivate Journal Citation Reports.

📊 Standing in its field

Where this journal ranks among others in the same subject area.

SJR · Scopus

Top 25% in field

Clarivate’s JCR quartile is a separate ranking and may differ

SJR Scorei

0.685

H-Indexi

163

SNIPi

0.799

Total Worksi

21,132

Total Citationsi

424,302

2yr Mean Citednessi

2.62

Open Impact Factor alternative

Retractions

Source: Retraction Watch

Aims & Scope

PeerJ A multidisciplinary, open access journal publishing high-quality research across medicine, health, biology, environmental science, chemistry, materials science, and engineering. A seamless and transparent publishing experience. PeerJ Computer Science An open access journal advancing research in artificial intelligence, data science, software engineering, cybersecurity, and human-computer interaction. It offers a transparent, researcher-first platform for innovative studies.

General Information

Country / RegionUnited States

Primary LanguageEnglish

1st Year Published1939

Annual Volume~ 1,958 articles / year

StatusActive (last: 2026)

Total Publications21,132

Publisher OrgPeerJ, Inc.

OA Since2012

Visit Journal Website

Submission Info

Peer ReviewSingle-blind

OA LicenseCC BY

OA Rate—

Ethics & Quality

COPE Member✗ No

OASPA Member✗ No

Not on Predatory Lists✓ Yes

Plagiarism Detection✓ Yes

📦 Long-term Preservation

LOCKSSPorticoPMCCLOCKSS

Think.Check.Submit Compliance

thinkchecksubmit.org

10/11 · 91%

✅

Do you know the journal / publisher?

PeerJ Inc.

✅

Does the journal have a website?

✓ Linked

✅

Is the ISSN verified?

2167-8359 / 2167-8359

✅

Indexed in a trusted database?

WoS, Scopus, DOAJ, PubMed

✅

Peer review process documented?

Single-blind

❌

Follows ethical publishing standards (COPE)?

N/A

✅

Not on predatory/blacklists?

✓ Clean

✅

Long-term digital preservation?

LOCKSS, Portico, PMC, CLOCKSS

✅

Plagiarism detection in place?

Yes

✅

Listed in DOAJ (verified OA)?

DOAJ verified

✅

Primary language documented?

English

A twelfth criterion — whether APC fees are clearly disclosed — is not scored here; it is left out of the total rather than counted as a failure. Publication charges appear in the metrics card above.

Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.

Publication & Citation Trend

Articles published

Citations received

2.1k

61k

2019

2.3k

50k

2020

2.1k

34k

2021

1.9k

24k

2022

2.1k

19k

2023

12k

2024

1.8k

4.1k

2025

1.2k

327

2026

Source: OpenAlex · Each year’s green bar = citations earned by that year’s papers, counted to date — so recent years look lower simply because their papers haven’t had time to be cited yet.

SJR Quartile by Discipline

Scimago ranks this journal separately in each subject category — its quartile can differ by discipline.

Agricultural and Biological Sciences (miscellaneous)Q1

Biochemistry, Genetics and Molecular Biology (miscellaneous)Q2

Medicine (miscellaneous)Q2

Neuroscience (miscellaneous)Q3

Subject Classification

Web of Science Categories

Multidisciplinary Sciences

Scopus Categories

Neuroscience (miscellaneous)Agricultural and Biological Sciences (miscellaneous)Biochemistry, Genetics and Molecular Biology (miscellaneous)Medicine (miscellaneous)

Research Topics (OpenAlex)

Plant and animal studiesGenomics and Phylogenetic StudiesCoral and Marine Ecosystems StudiesSpecies Distribution and Climate ChangeEvolution and Paleontology StudiesWildlife Ecology and ConservationPaleontology and Evolutionary BiologyEcology and Vegetation Dynamics StudiesIchthyology and Marine BiologyAmphibian and Reptile Biology

Frequently asked questions about PeerJ

Is PeerJ a predatory journal?

PubScope has no integrity flags on record for PeerJ: it is indexed in Web of Science, Scopus, DOAJ, and is not on DOAJ's withdrawn list. Indexing is a transparency signal, not a guarantee — always confirm fit and policies before submitting.

What is the impact factor of PeerJ?

PeerJ is indexed in the Web of Science Core Collection, so Clarivate publishes an official Journal Impact Factor for it (since the 2023 Journal Citation Reports, every Core Collection journal — including Arts & Humanities and Emerging Sources titles — receives one). PubScope links to Clarivate's official source rather than reprinting the number, which can be out of date. Its open 2-year mean citedness is 2.62.

Is PeerJ indexed in Scopus and Web of Science?

PeerJ is indexed in Web of Science, Scopus, DOAJ.

PeerJ

Aims & Scope

General Information

Submission Info

Ethics & Quality

Think.Check.Submit Compliance

Publication & Citation Trend

SJR Quartile by Discipline

Subject Classification

Frequently asked questions about PeerJ

Is PeerJ a predatory journal?

What is the impact factor of PeerJ?

Is PeerJ indexed in Scopus and Web of Science?

What is the aims and scope of PeerJ?

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