Short answer: predatory journals trick researchers by imitating legitimate journals while prioritising fees over real editorial quality, peer review, and research integrity.
Predatory journals often target researchers who need publications for jobs, degrees, funding, or promotion. They may promise fast acceptance, flattering invitations, broad journal scopes, fake impact metrics, or impressive-looking editorial boards. Some use names that sound similar to reputable journals.
Common warning signs
Be cautious if a journal sends aggressive unsolicited emails, promises unrealistically fast peer review, hides fees until late in the process, lists editors who cannot be verified, uses fake metrics, has poor website quality, or publishes papers far outside its stated scope. A journal that accepts almost anything for a fee is not providing scholarly publishing. It is selling the appearance of publication.
Predatory publishing is not only a problem for authors. It pollutes the literature, wastes research money, confuses readers, and can damage public trust. Weak or fraudulent papers may be cited, shared, or used by people who do not realise the journal is unreliable.
How to protect yourself
Check whether the journal is indexed in respected databases relevant to the field. Look at recent articles. Search the editorial board. Check publisher transparency, peer review policy, fees, contact information, and membership in recognised organisations. Ask supervisors, librarians, or experienced colleagues if uncertain.
The safest rule is simple: a real journal should make quality harder, not easier. If the process feels like buying a certificate, it probably is not serious scholarly publishing.