Hashing Made Easy
Digest is a light-weight utility that calculates the digest (or “hash”) of files or strings. With files, Digest provides an easy-to-use interface detailing basic file properties. With strings, it provides an area for text input and editing as well as a variety of encoding settings. Both interfaces feature a list of all selected digests. Each digest is presented in both a hexadecimal and Base64, which can be copied to the pasteboard with a single click.
Digest is available for free on the Mac App Store.
Algorithms
SHA-224
SHA-1
SHA-1
SHA-256
MD5
MD5
SHA-384
MD4
MD4
SHA-512
MD2
MD2
Screen Shots

Technical
Digest and CBHDigestKit
uses CommonCrypto to compute the hashes.
Portions of Digests code is available as open-source (ISC licensed) in CBHDigestKit
.