About this citation checker

A free tool for students, researchers and editors who need to know whether the references in a paper are real.

Why it exists

AI writing tools invent references that look right, and the existing checkers ask you to sign up or pay before checking a single one. This one works straight away on the page, for up to 25 references at a time.

Where the data comes from

Every lookup goes to CrossRef, the registry publishers use for DOIs, and OpenAlex, an open index of scholarly works run by the non-profit OurResearch. We are not affiliated with either. Their records are good but not complete, so a “Not found” mark means “not in these databases”, not proof that a source is fake.

Contact

Found a reference the tool got wrong? Send it to ysl372551711@gmail.com and we will look at the matching.