The shareware developers at Chaotic Software have released a free software development tool, Data Coder 1.0. It’s a Mac OS X application for converting a variety of data formats.
Input can be in UTF-8 text, UTF-16 text, hex-encoded text or base-64. Output can be in UTF-8 text, UTF-16 text, hex-encoded text, hex/ASCII text with 8, 16, or 32-bit chunks, base-64, Adler32 checksum (both standard and Apple variants), CRC32, MD5 or SHA-1.
It’s a free application. Data Coder is available for download now.