HashCheck Shell Extension for Windows with added SHA2, SHA3, and multithreading. Developed by Kai Liu
License: Open Source
Apps available for Windows Windows Explorer
Hashtab can be used to calculate and display hash values from over two dozen popular hashing algorithms like MD5, SHA1, SHA2, RipeMD, HAVAL and Whirlpool. Developed by Implbits
License: Free Personal
Apps available for Mac OS X Windows Windows Explorer Finder