HashTab

HashTab is a file hashing application and Finder context menu extension. The Finder menu extension adds a menu item called "File Hashes" that will allow you to launch the hashing application on a specific file from directly within Finder. Supports numerous common hashing algorithms SHA1 SHA-256 SHA-512, MD2, MD4, MD5, RIPEMD160, RIMPEMD 320, HAVAL, TIGER, and Whirlpool.

Version 5.1:

• Added the winner of the NIST hash competition (Keccak) which is now the official SHA3 standard.

Requirements

OS X 10.7 or later