hecate - The Hex Editor From Hell!
HECATE. O well done! I commend your pains; And every one shall share i' the gains; And now about the cauldron sing, Live elves and fairies in a ring, Enchanting all that you put in. Hecate is a terminal hex editor unlike any you've ever seen: instead of putting the (ASCII) representation of bytes way out on the right side of the screen, it puts the interpreted values directly beneath the hex representation.