Free DOI Lookup Tool
Enter a DOI to retrieve available publication metadata. Choose a citation style and copy the formatted reference.
What is a DOI?
A Digital Object Identifier (DOI) identifies an article, book, dataset, or other scholarly work. A DOI link can lead to its current publisher page even if the hosting location changes.
How DOI lookup works
The DOI lookup retrieves available title, author and publication details through the configured metadata provider, then formats them in your chosen citation style. Records may be incomplete or unavailable.
Supported citation styles
Choose APA (7th edition), MLA (9th edition), Chicago, Harvard, IEEE, or Vancouver. A formatted citation uses the available metadata; check missing or unexpected details before use.
Check publication evidence
A working DOI can point to a different publication. Compare its record with the reference before relying on it.
Check a complete bibliography
Hallucite compares references with available publication records and shows evidence for matches, discrepancies and unresolved entries.
Verification sources
- Crossref
- PubMed
- NLM Catalog
- OpenAlex
- CiNii
- DBLP
- Open Library
- Google Books
- Semantic Scholar
- DOI registry