HashCalc
HashCalc is a fast and easy-to-use calculator to compute message digests, checksums and HMACs for files, as well as for text and hex strings. It offers a choice of 13 of the most popular hash and checksum algorithms for calculations (MD2, MD4, MD5, SHA-1, SHA-256, SHA-384, SHA-512, RIPEMD-160, PANAMA, TIGER, ADLER32, CRC32 and eMule/eDonkey Hash).