DOI to BibTeX Converter
Turn any journal DOI into a publication-grade BibTeX citation in 50ms. Supports single and bulk DOI conversions with zero server bills.
Instant CrossRef & DataCite
Queries official registry APIs directly in your browser. Resolves journal articles, books, proceedings, and arXiv preprints with zero lag.
Clean Syntax & Formatting
Escapes problematic characters, normalizes double hyphens in page ranges (12--18), standardizes citation keys, and wraps all fields safely in braces.
100% Private & Offline-Ready
All conversion runs directly on your device. Your confidential manuscript references and uploaded RIS files never touch any third-party server.
How DOI Resolution Works
A Digital Object Identifier (DOI) is the persistent unique identifier assigned to academic works by major publishers (Nature, IEEE, Springer, ACM, Elsevier, Wiley). Rather than scraping HTML pages, LaTeXTool communicates directly with the international registries:
CrossRef REST API
CrossRef registers over 150 million journal articles, books, and conference papers. Our tool queries their open endpoint using HTTP content negotiation to fetch canonical metadata.
DataCite Open Registry
DataCite mints DOIs for preprints (including all modern arXiv papers under prefix 10.48550), datasets, and technical whitepapers with zero API rate barriers.
How to Include DOIs in BibTeX vs BibLaTeX
Depending on whether you use legacy BibTeX or modern BibLaTeX, here is how DOIs are formatted:
% Modern BibLaTeX (Recommended)
@article{harris2020numpy,
title = {Array programming with NumPy},
author = {Harris, Charles R. and others},
journal = {Nature},
year = {2020},
doi = {10.1038/s41586-020-2649-2}
}% Legacy BibTeX (natbib)
@article{harris2020numpy,
title = {Array programming with NumPy},
author = {Harris, Charles R. and others},
journal = {Nature},
year = {2020},
note = {doi: \url{10.1038/s41586-020-2649-2}}
}Frequently Asked Questions
How can I convert a DOI to BibTeX format?▼
To convert a DOI to BibTeX, simply copy the DOI number (such as 10.1038/s41586-020-2649-2) and paste it into the converter above. Click "Generate BibTeX" and LaTeXTool queries the official CrossRef registry via open CORS, returning a clean @article or @book entry in under 100 milliseconds.
How do I add or include a DOI in a BibTeX entry?▼
In modern BibLaTeX, you can simply add a "doi" field: doi = {10.1038/s41586-020-2649-2}. In legacy BibTeX (which does not natively format the doi field), researchers typically put it in the "note" or "url" field, for example: note = {\url{https://doi.org/10.1038/s41586-020-2649-2}}, or load the "doi" or "url" LaTeX packages.
Can I convert multiple DOIs at the same time in batch?▼
Yes! You can paste 5, 10, or 50 DOIs separated by new lines into the input area. LaTeXTool executes asynchronous parallel requests to CrossRef and DataCite, assembling all resolved references into a single, clean .bib file.
Why do some DOIs fail to resolve?▼
A DOI resolution fails if the DOI contains a typo, has not yet been registered in CrossRef or DataCite by the publisher, or was retracted. Ensure the string starts with "10." and has no trailing punctuation.
Does this tool work with preprints from arXiv and bioRxiv?▼
Yes. Every arXiv and bioRxiv preprint receives an official DOI (for instance, arXiv DOIs start with 10.48550/arXiv). LaTeXTool seamlessly resolves preprint DOIs and includes eprint and archivePrefix tags.