MD5 Hasher (ver 1.0) Abandoned Freeware The MD5 Hasher program calculates MD5 hashes for a file, so you can check for corruption after a download. For example; before downloading, you generate a "checksum" for the file to be downloaded. Later generate a "checksum" for the downloaded file. Both the original file and downloaded copy should have exactly the same "checksum" (if not, the download is corrupt). Usage: MD5