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BibTeXGenerator Free Academic Tools
Cleaners, Formatters & Linters • Utility

BibTeX Duplicate Entry Remover & Deduplicator

Find and remove duplicate BibTeX citations by matching DOIs, normalized titles, or citation keys.

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Click "Generate BibTeX" to run parser Client-Side • 0ms latency
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How BibTeX Duplicate Entry Remover Works

Over months of writing, researchers often accidentally paste the same reference into references.bib under different keys. This tool performs fuzzy matching on DOIs, titles, and author-year combinations, identifies duplicates, and outputs a clean, deduplicated bibliography.

Key Specifications & Features

  • ✓ Exact matching on DOIs and ISBNs
  • ✓ Fuzzy matching on normalized titles and author surnames
  • ✓ Preserves the most complete entry with the highest number of fields
  • ✓ Provides summary report of all removed duplicates

How to Use This in Overleaf or LaTeX

  1. Generate and copy your BibTeX entry using the Copy button above.
  2. In your LaTeX project or Overleaf editor, open your bibliography file (typically references.bib).
  3. Paste the entry into references.bib.
  4. In your document (e.g. main.tex), cite it anywhere using \cite{citation_key}.
  5. Compile your document with pdflatex and bibtex to view the formatted reference in your compiled PDF.

Frequently Asked Questions

How do I import this into Overleaf or LaTeX?

Simply copy the generated BibTeX entry, open your references.bib file in Overleaf or your local LaTeX editor, and paste it. Then cite it in your document using \cite{citation_key}.

Is this tool free to use?

Yes, all 100+ citation generators on BibTeXGenerator.com are 100% free with no account creation or daily usage limits.

Does this generator support BibLaTeX as well as classic BibTeX?

Yes, all generated entries follow standard field naming conventions compatible with BibTeX (natbib) as well as modern BibLaTeX (biber).

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