A Digital Object Identifier (DOI) is a permanent unique string that identifies digital documents like journal articles, providing a stable link to scholarly content.

How do DOI citations work on DOICitation?

Enter any DOI and our platform fetches real-time metadata from Crossref and OpenAlex APIs, then formats it into APA 7th, MLA 9th, Chicago, Harvard, IEEE, BibTeX, or RIS format.

Is DOICitation free to use?

Yes! We offer 20 free DOI conversions daily. For unlimited access and bulk processing, premium plans are available starting at $5/month.

Which citation styles does DOICitation support?

APA 7th edition, MLA 9th, Chicago author-date, Harvard, IEEE, BibTeX, and RIS formats are all supported with accurate formatting.

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Crossref API OpenAlex Metadata APA • MLA • BibTeX Free DOI Tool

Live DOI Citation Generator

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Everything You Need for Academic Citations

Built for researchers, students, and academics who demand accuracy and speed.

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DOI Citation Generator

Generate APA, MLA, Chicago, Harvard, and IEEE citations from any DOI in real-time.

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Metadata Lookup

Fetch authors, journal, volume, issue, pages, and publication year from Crossref & OpenAlex.

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BibTeX & RIS Export

Download clean BibTeX (.bib) and RIS files compatible with Zotero, Mendeley, and LaTeX.

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Bulk DOI Processing

Upload up to 100 DOIs via CSV or paste a list to generate complete reference lists.

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API Access

Integrate DOI citation generation into your own apps with our REST API.

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PDF Reports

Export formatted reference lists as PDF documents ready for submission.

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Privacy First

No account required. Your DOIs are processed securely and never stored on our servers.

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Browser Extension

Generate citations directly from journal pages with our Chrome/Firefox extension.

How DOICitation Works

Three simple steps to generate perfectly formatted citations.

Paste DOI

Enter any DOI or URL from a journal article, conference paper, or book chapter.

Fetch Metadata

Our system queries Crossref and OpenAlex APIs to retrieve accurate publication data.

Export Citation

Download your citation in APA, MLA, Chicago, BibTeX, or RIS format instantly.

Simple, Transparent Pricing

Start free and upgrade as your research needs grow.

Free

✓ 20 DOI checks/day
✓ All citation styles
✓ BibTeX & RIS export
✗ Bulk processing

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Loved by Researchers

Dr. Sarah Chen

Computational Biologist, MIT

"DOICitation saves me at least 3 hours every week. The BibTeX export is flawless for my LaTeX manuscripts. Highly recommend to any researcher."

Alex Rivera

PhD Candidate, Stanford

"Writing my dissertation with 200+ references was daunting until I found DOICitation. The bulk DOI feature is a game changer for literature reviews."

Prof. James Lee

Editor, Journal of Applied Physics

"As a journal editor, I see citation errors daily. DOICitation produces consistently accurate APA references. I recommend it to all our authors."

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DOICitation is built for the academic community. Your support helps us maintain free access for students and researchers worldwide.

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Frequently Asked Questions

A Digital Object Identifier (DOI) is a unique alphanumeric string that provides a permanent link to digital content such as journal articles, conference papers, book chapters, and datasets. Unlike URLs that may change, DOIs remain stable and resolvable through doi.org.

Simply paste any DOI into our generator. DOICitation queries Crossref and OpenAlex APIs in real-time to retrieve the article's metadata — authors, title, journal, volume, issue, pages, and publication year — then formats it according to your selected citation style (APA 7th, MLA 9th, Chicago, Harvard, IEEE, BibTeX, or RIS).

Yes! DOICitation offers a generous free tier with 20 DOI conversions per day, all citation formats, and BibTeX/RIS export. For unlimited access, bulk processing, and API integration, our Pro plan is available at $5/month.

We fully support APA 7th edition, MLA 9th edition, Chicago author-date, Harvard, and IEEE citation styles. We also generate BibTeX (.bib) and RIS formats for reference managers like Zotero, Mendeley, EndNote, and LaTeX editors.

Absolutely. Every citation generated on DOICitation can be downloaded as a clean BibTeX (.bib) file for LaTeX or a RIS file for reference management software. These files are properly formatted and ready to import into your workflow.

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