Duplicate File Finder
Select files (or a whole folder) and find exact duplicates by SHA-256 content hash - fully offline.
This tool scans a set of files and identifies exact duplicates by comparing their content hash (not just filename) - fully offline, useful for cleaning up storage space by finding truly identical files even if they've been renamed or moved to different folders.
Frequently asked questions
It compares each file's content hash (a fingerprint generated from the file's actual data) rather than the filename - two files with completely different names but identical content will have the same hash and be flagged as duplicates.
No - the tool works fully offline, processing files directly on your device to compute hashes and compare them; nothing is uploaded to a server.
No - hash comparison is exact; even a single-byte difference produces a completely different hash, so only truly byte-for-byte identical files will be flagged as duplicates.