Find Duplicate Files in the Browser: SHA-256 Groups, Not Uploads
Duplicate files are rarely duplicates by name. They are duplicates by content — the same photo saved three times with three different names, the same export saved again by an older tool. So the useful question is not "do these two files look the same" but "do these two files hash the same". That is a question you can answer exactly, and you can answer it without handing your files to anybody. I…
Duplicate files can be identified by their content, not by their names. The File Studio in OnePassApps' browser app lets users find files with identical content by hashing the files and grouping those with matching hashes. This method compares only the files users select, leaving them untouched and within limits of 500 files and 2 GiB in total.
The comparison is based solely on SHA-256 hashes of the file content, ensuring that even files with the same name or size are distinguished correctly. The tool reports the exact duplicates found, but does not delete or modify any files. Users can copy the list of duplicates and re-run the comparison if needed. The tool runs entirely within the browser, processing files locally without sending them elsewhere.
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