The question “mdpi journals predatory” often comes up when researchers are choosing where to publish their work. MDPI is a well-known open-access academic publisher, but its publishing practices have attracted debate over peer review, editorial standards, special issues, and publication volume. For researchers, the important question is not simply whether the publisher has faced criticism, but whether a particular journal meets the standards required for credible scholarly communication.
Before submitting a manuscript, you should examine a journal’s indexing status, editorial board, review policies, publication fees, and research quality. These checks can help you make a more informed decision without relying entirely on online accusations or promotional claims. In this guide, you will learn why MDPI has generated controversy, how to assess its journals fairly, and which warning signs deserve closer attention before you submit your research.
What Is MDPI and How Does It Work?
MDPI, short for Multidisciplinary Digital Publishing Institute, is an academic publisher that primarily operates through an open-access model. It publishes journals across a wide range of disciplines, including medicine, biology, environmental science, engineering, education, and technology. Open access allows readers to access published research without paying subscription fees, helping researchers, students, and professionals discover scientific findings more easily.
MDPI journals commonly finance publication through article processing charges, or APCs, paid by authors or their institutions when applicable. The publishing process can include editorial screening, external peer review, revisions, and final acceptance. However, procedures and standards can vary between journals and editorial teams. Understanding this structure is essential when evaluating claims about mdpi journals predatory, because a publisher’s business model alone does not establish whether its scholarly practices are reliable.
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Are MDPI Journals Predatory or Legitimate?
Predatory publishing generally refers to practices that prioritize collecting publication fees over providing meaningful editorial oversight, transparent peer review, and responsible scholarly publishing. Such publishers may misrepresent their credentials, make unrealistic acceptance promises, or conceal important information about their operations. However, identifying predatory behavior requires evidence. Criticism of a publisher, a large number of published papers, or a short review timeline does not automatically prove that every journal it operates is predatory.
MDPI has faced criticism from researchers, and its history includes debate over its earlier appearance on Jeffrey Beall’s list of potentially predatory publishers in 2014 and subsequent removal in 2015. This history is relevant context, but it is not a definitive assessment of its current journals. When investigating mdpi journals predatory claims, examine recent, verifiable evidence about the specific journal rather than treating an old list or a single online opinion as conclusive proof.
Why Do Some Researchers Criticize MDPI Journals?
One recurring concern involves the speed of peer review. Some researchers question whether certain manuscripts receive sufficiently thorough scrutiny when editorial decisions happen quickly. Others raise concerns about publication volume, the workload of editors and reviewers, and the management of special issues. These are legitimate subjects for scholarly discussion, but the significance of each concern depends on the evidence available for the individual journal and its editorial practices.
Another source of debate is the open-access business model, in which publication fees may create concerns about incentives to accept more manuscripts. Yet charging an APC is common among legitimate open-access publishers and does not, by itself, demonstrate poor editorial quality. Researchers should look for concrete evidence, such as inadequate review procedures, misleading claims, unresolved ethical concerns, or a lack of transparency, rather than assuming that every criticism applies equally across a publisher’s entire portfolio.
How to Check an MDPI Journal’s Credibility
Before submitting your manuscript, investigate the journal itself instead of relying solely on its publisher’s reputation. Start with the official journal website and confirm its title, ISSN, publisher details, editorial leadership, aims, and scope. Compare this information with independent academic sources, and verify that the listed editors have relevant expertise and genuine institutional affiliations. A credible-looking website is not enough; the information it presents should be consistent and independently verifiable.
Next, examine the journal’s editorial policies and published research. Look for clear explanations of peer review, conflicts of interest, corrections, retractions, research ethics, and complaints procedures. Read several recent articles in your field to judge whether they demonstrate sound methodology and appropriate reporting. If the journal makes claims about indexing, verify them through the relevant databases. These steps offer a more dependable assessment than searching only for a predatory journal list.
Use this practical checklist:
- Confirm the journal’s ISSN and publisher information.
- Verify indexing through official database records.
- Review the editor-in-chief’s qualifications and editorial board.
- Check peer review procedures and publication ethics policies.
- Read recent articles relevant to your research area.
- Confirm publication charges and licensing terms before submission.
- Look for documented concerns, corrections, or retractions.
Understanding MDPI Indexing and Journal Metrics
Indexing can help researchers assess a journal’s visibility and discoverability, but it is important to understand what indexing actually establishes. Databases such as Scopus and Web of Science apply their own selection and evaluation criteria, while PubMed provides access to biomedical literature through several inclusion routes. A journal’s presence in one database does not necessarily mean that it is indexed in all the others or that every article it publishes has been independently endorsed for quality.
Check the exact journal title and ISSN in the relevant database rather than relying on logos displayed on a publisher’s website. Also verify whether coverage is current, because journals can be added, discontinued, or subject to changes in their indexing status. Journal Impact Factor and CiteScore can provide citation-related information, but they are not complete measures of research quality. Strong evaluation combines indexing records, editorial standards, research relevance, and transparent publishing practices.
MDPI Peer Review: What Authors Should Know
Peer review is a central part of scholarly publishing because it allows specialists to evaluate a manuscript’s methods, evidence, originality, and contribution to a field. In an MDPI journal, the precise workflow depends on the journal and its policies, but it may include an initial editorial assessment, external reviewer reports, author revisions, and a final editorial decision. Authors should read the journal’s stated procedures and understand how editorial decisions are made before submitting their work.
A fast decision is not necessarily evidence of inadequate review, just as a long review period does not guarantee a rigorous assessment. More useful indicators include relevant reviewer expertise, meaningful feedback, appropriate requests for revision, and clear explanations of editorial decisions. If you receive generic comments, unexplained acceptance, or contradictory information about the review process, ask the editorial office for clarification. When assessing mdpi journals predatory concerns, focus on the quality and transparency of the actual process rather than speed alone.
MDPI Publication Fees and Open-Access Policies
Many open-access journals charge article processing charges to cover publishing services. Depending on the journal, these may include editorial administration, production, hosting, and long-term access to published research. Before submitting a manuscript, check the official journal website for its current APC, any applicable taxes, waiver opportunities, institutional agreements, and payment conditions. Make sure you understand when a fee becomes payable and whether your research funder or institution will cover it.
Transparent pricing is an important part of responsible publishing, but publication fees alone cannot determine whether a journal is predatory. Authors should also review copyright terms, Creative Commons licensing options, and rules for sharing or reusing published material. Be cautious if charges are concealed, terms change unexpectedly, or payment requests do not match the journal’s published policies. A clear fee structure, combined with credible editorial practices and sound peer review, provides a more useful basis for evaluating a publication venue.
MDPI Special Issues: Benefits and Potential Risks

Special issues bring together articles on a focused topic, creating opportunities for researchers to share related findings and reach a targeted academic audience. They may be coordinated by guest editors with expertise in the subject, while the journal’s editorial team oversees the publishing process. For authors, a relevant special issue can offer a useful route to connect their work with current research discussions and other specialists in their field.
However, special issues also require appropriate editorial oversight. A large volume of submissions, unclear guest editor responsibilities, or insufficient scrutiny can raise questions about consistency and review quality. Before submitting, confirm that the special issue appears on the journal’s official website, review the guest editors’ credentials, and read the submission and peer review policies. Consider whether the topic genuinely fits your research and whether the expected timeline allows for a meaningful assessment of your manuscript.
Warning Signs of a Potentially Untrustworthy Journal
Certain publishing practices should prompt further investigation, regardless of the publisher’s name. These include guaranteed acceptance, unclear peer review, unverifiable editorial board members, misleading indexing claims, and publication fees that are difficult to locate. Repeated invitations to submit unrelated research may also deserve scrutiny. Although a single unusual practice may have an innocent explanation, multiple warning signs together can justify delaying submission until you have verified the journal’s claims.
When evaluating concerns about mdpi journals predatory, distinguish between documented evidence and unverified accusations. Look for statements from recognized indexing services, institutional research offices, journal ethics organizations, or other credible sources. Check whether an allegation concerns the publisher generally, a specific journal, a particular special issue, or an isolated incident. This distinction helps prevent unfair generalizations and allows you to make a decision based on the actual risks associated with the journal you are considering.
MDPI vs. Other Academic Publishers
Comparing publishers can help you identify an appropriate journal, but the comparison should focus on the specific titles you are considering. MDPI, Elsevier, Springer Nature, and other academic publishers operate journals across different disciplines and use different business models. Some journals are subscription-based, some are fully open access, and others offer hybrid publication options. These differences affect access, fees, and licensing, but they do not independently establish the quality of a journal’s editorial process.
Use consistent criteria when comparing potential destinations for your paper. The following table provides a practical framework.
| Evaluation factor | What to check |
|---|---|
| Indexing | Current records in relevant academic databases |
| Peer review | Transparent policies and meaningful reviewer feedback |
| Editorial board | Verifiable expertise and institutional affiliations |
| Publication fees | Clear APCs, waivers, and payment conditions |
| Research quality | Sound methods and relevant published articles |
| Journal scope | A strong fit with your manuscript |
| Ethics policies | Clear correction, retraction, and misconduct procedures |
A journal that performs well against these criteria may be a better fit than a more famous title that does not match your research. Compare actual editorial practices, academic relevance, and institutional requirements instead of relying on publisher reputation alone.
Is Publishing in an MDPI Journal Good for Your Academic Career?
Publishing in an MDPI journal may be suitable for your academic career when the individual journal is credible, relevant to your research, and recognized within your discipline. A well-matched publication can help make your findings accessible to researchers worldwide and support scholarly discussion. However, the value of a publication depends on several factors, including research quality, journal reputation, peer review, and the expectations of your institution or funding body.
Before deciding, consult your supervisor, experienced colleagues, or university librarian if you are uncertain. Review the journal’s standing within your field and check whether your institution has specific rules about acceptable publication venues. Do not select a journal solely because it promises rapid publication or advertises impressive metrics. A careful assessment of mdpi journals predatory concerns, journal-level credibility, and academic suitability can help you protect your research and make a confident publishing decision.
How to Decide Whether to Submit Your Paper to MDPI
A practical pre-submission review can help you avoid unnecessary risks. Start by confirming that the journal publishes research in your area and that its recent articles meet your academic expectations. Verify its indexing claims, review its editorial board, and read its publication ethics policies. Then compare the APC and expected publication timeline with your budget, funding conditions, and research deadlines.
Before making your final decision, ask yourself:
- Does the journal’s scope match my manuscript?
- Can I independently verify its indexing status?
- Are its editors and review policies transparent?
- Are the publication fees and licensing terms clear?
- Do recent articles meet appropriate scholarly standards?
- Does the journal meet my institution’s publication requirements?
If important information is missing or contradictory, contact the editorial office or seek independent advice before submitting. You can also compare alternative journals using the same criteria. This process is more reliable than making a decision based entirely on online rankings, promotional material, or a single positive or negative review.
Conclusion

The question of whether MDPI journals are predatory requires a balanced, evidence-based answer. MDPI has faced criticism concerning peer review, special issues, publication volume, and editorial oversight, but these concerns do not establish that every journal under its name is predatory. Equally, a journal’s indexing status or the publisher’s established presence does not automatically guarantee high editorial standards.
The most reliable approach is to evaluate the individual journal using current indexing records, editorial credentials, peer review policies, publication fees, research quality, and ethics procedures. If you are considering an MDPI journal, verify its claims independently and compare it with suitable alternatives. This gives you a stronger foundation for choosing a publication venue that supports your research goals and academic reputation.
Frequently Asked Questions
Are MDPI journals predatory?
MDPI has faced criticism, but whether a journal is trustworthy should be assessed using evidence about its current editorial practices, peer review, and publication ethics.
Is MDPI a legitimate academic publisher?
MDPI is an established open-access academic publisher, but researchers should assess the credibility and standards of the specific journal they plan to use.
Why do some researchers criticize MDPI journals?
Common concerns include peer review speed, special issue oversight, publication volume, and editorial consistency.
Are MDPI journals indexed in Scopus and Web of Science?
Some MDPI journals are indexed in academic databases; verify the current coverage of each journal through the relevant official database.
Is MDPI peer review reliable?
Review procedures vary by journal and manuscript, so examine the published policies and assess the quality of the editorial process.
Do MDPI journals charge publication fees?
Many MDPI journals charge article processing fees, which should be checked on the individual journal’s official website.
Does publishing in an MDPI journal hurt an academic career?
Not necessarily; the impact depends on the journal’s credibility, research quality, disciplinary expectations, and institutional evaluation policies.
How can I check whether an MDPI journal is trustworthy?
Verify its indexing, editorial board, peer review policies, publication fees, ethics guidelines, and recent research quality before submitting.
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