1. 01Add at least two files.
2. 02Start the scan and wait while each same-size candidate is hashed in turn.
3. 03Read the report: one file per group is suggested for keeping, the rest can be removed, and the total reclaimable space is shown.

Files that share a name but hash differently are never reported as duplicates; files with different names do land in the same duplicate group as soon as both their size and their SHA-256 match.

• Candidate files are hashed one at a time so that several large files never sit in memory at once.
• Candidates above 500 MB raise a warning, because the current SHA-256 implementation reads each file into memory in one piece.
• Cancelling discards partial results rather than keeping half-finished output.
• A browser cannot delete the original files on your disk; the tool only produces a list, and the actual deletion has to happen in your file manager.

File contents and hashes are handled in the current browser and are never uploaded to a server.