Hex Plugin for REALbasic 5 and higher is a small plugin with four methods.

You can give the plugin a string containing an unsigned decimal integer of essentially unlimited length and the plugin will give back a string containing the hexadecimal equivalent of that integer. And you can do the reverse.

Also you can give the plugin a UTF8 or UTF16 encoded string, and the plugin will give back a string containing the hex representation of that input string. And you can do the reverse.

Included in the download is "Test Hex Plugin.rbp", which shows how the four functions can be used.

As a Carbon, PPC, and x86 plugin, it can be used to build Mac OS X, Mac OS 9.x, and Windows applications.