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Hasher v2.3

** Updated June 19, 2007

Download your copy of Karen's Hasher

Compute and verify the MD5, SHA-1, SHA-224, SHA-256, SHA-384 or SHA-512 Hash Value of any text string, disk file, or group of files!

A Hash Value is a sort of digital fingerprint, uniquely identifying each text string or file. If two strings or files have the same Hash Value, then they are virtually guaranteed to be identical.

For more information, read these back issues of Karen's Power Tools newsletter:

July 12, 2002 July 26, 2005
February 10, 2006


Download Karen's HasherSHA-1
Download and run to install the Hasher 1,225,792 bytes
Download VB6 Source CodeSHA-1
Programmers only 248,592 bytes
Download Visual Basic Runtime v6.0SHA-1
Note: Karen's Hasher's installer will automatically download and run the Visual Basic Runtime installer, if necessary. 1 MB

Enhancements/Bugs Fixed

  • Version 2.3: Made several changes to make program work under Windows Vista. These include an HTML-format help file, and changes to location where settings are stored.
  • Version 2.2.1: Made program more compatible with hash value files made by some other software (that delimit data with space instead of tab).
  • Version 2.2: Can now verify previously saved hash values, determining if the contents of files or folders have changed since the original hash values were computed and saved.
  • Version 2.1: Now supports SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 algorithms, in addition to the original MD5.
  • Version 1.0: This is the first release.