CalcChecksum is a tool for calculating MD5, MD4, CRC32, SHA1 (SHA160), SHA256, RIPE-MD-160, TIGER, HAVAL (128, 160, 192, 224, 256 with 3, 4 or 5 passes) on files, text-strings or hash-lists generated by md5sum or sha1sum.
CalcChecksum is a KDE/QT 3.1 application.


CalcChecksum-1.6-pre1 released! This is a major feature enhancement release.
Is has also been prepared to run on 64-bit and big-endian machines, but that's not tested, yet (because I don't have access to one of those machines).

Supported operating-systems:

Currently it's only tested to compile and run on GNU/Linux, but I'm working on it to make it running on other free operating-systems.


Main window (normal checksum calculation)
List calculation window (md5sum and sha1sum lists)


You can download all CalcChecksum releases on the Sourceforge project page.
You may use my GPG-key to verify the archives.


If you have any ideas, improvements, bug-reports, or if you only want to talk with me about CalcChecksum, please send me a nice e-mail:
Michael Buesch <>

CalcChecksum (c) 2002, 2003, 2004 Michael Buesch.
License: GNU General Public License version 2

Website last updated: 2004-01-17