Citation generator & checker
Paste a DOI (or a BibTeX/RIS reference) and get it in any style. DOIs are verified against CrossRef and checked for retractions. Free, no sign-up, no AI.
Free · no sign-up · DOIs verified against CrossRef
More than a formatter
Most citation generators just format text. This one verifies the reference exists in CrossRef and checks it for retractions — because a citation that points to a retracted paper is worse than no citation at all.
Supported styles
APA 7 · MLA 9 · Chicago 17 (author–date and notes-bibliography) · IEEE · Harvard · Vancouver. The reference is built from CrossRef metadata, so it's accurate and consistent — the same engine Folio uses when you cite as you write.
Cite as you write
In Folio, citations format and renumber themselves while you draft — across your whole library.