BibTeX De-duplicator — Remove Duplicate Entries
Remove duplicate BibTeX entries from your bibliography file based on DOI. Upload a .bib file and get a clean, deduplicated version.
Drag & drop BibTeX file here
or browse files
Supported: .bib • Max 10MB
Processed Locally
Your file never leaves your device. Everything is processed in your browser — we never see or store your data.
How to De-duplicate BibTeX
- 1Upload your BibTeX file (.bib) or paste BibTeX content directly into the text area.
- 2The tool will automatically parse all entries and identify duplicates by DOI.
- 3Review the summary showing how many duplicates were found and removed.
- 4See the list of duplicate entries that were removed (with preview).
- 5Download the cleaned BibTeX file with all duplicates removed.