a free cross platform checksum utility, supports 58+ hash algorithms
...This site has been left for historical purposes ONLY, you find older Jacksum versions here. Please visit the GitHub site for current development.
Jacksum 1.7.0 is a platform independent checksum utility (written entirely in Java) for computing and verifying (integrity check) checksums, CRC and hashes (fingerprints). It supports 58 popular hash algorithms and a lot of unique features.
Simple, lightweight utility to gather and record battery data for OSX.
Battery Monitor retrieves relevant battery data, such as charge cycles (the number of times you've charged the battery fully), the percent charge, amperage, and voltage. I wrote this to be an efficient and fast diagnostic tool.