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Duplicate File Search
Look up whether a known file hash was seen before
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About this tool
Search by a SHA-256 hash you already have to see if a matching file has been submitted through our Duplicate File Check tool before.
Frequently asked questions
Where do I get a file's SHA-256 hash to search for?
Use our File Hash Checker or File Info Inspector tool to generate a file's SHA-256 hash first.
What does this search against?
The same shared record built by our Duplicate File Check tool — this only finds matches for files that were previously uploaded through that specific tool.