Free Tools › Reference Deduplication Tool
Combine exports from several databases and remove duplicate records before screening. Upload RIS, PubMed/MEDLINE or BibTeX files, get the numbers for your PRISMA diagram and download a clean RIS file.
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RIS from Ovid, Embase, Scopus or EBSCO; .nbib from PubMed; BibTeX.
See which records were matched and why.
Import the RIS file into your screening software.
Searching several databases retrieves the same article more than once. Duplicates must be removed before screening, and the number removed is reported in the PRISMA flow diagram.
This tool matches records by DOI, then PubMed ID, then normalised title with the publication year (and first page when available), and keeps the most complete version of each record.
Files are processed entirely in your browser.
It removes clear matches. Records with different titles and no shared identifiers (for example conference abstracts and later articles) can remain, so watch for them during screening.
No. Files are read and processed in your browser.