From Traintrain Software:
CaraCaraC is a characters meter. After counting a text, it displays the total number of characters (including or not including ponctuation marks and unprintable characters) and the number of different characters. For each character it displays the ranking, the number of occurences, the frequency and cumulative frequency in percent. The results can be saved as file or printed. CaraCaraC works with any kind of writing but is chiefly designed for asian writings : in particular, CaraCaraC is a useful chinese characters counter.