As mentioned these passwords aren't hard to crack.<p>Anything based on a word list is going to be inherently easy to crack, and with a predictable format like word-separator-word, it is even easier.<p>I realise this is a fun weekend project, and learning new languages is always a good thing, but I think it's a little irresponsible to make any claims that these passwords are secure.<p>Also as mentioned, if people were to actually use this for password generation it should be behind SSL, although I would discourage anyone from using passwords generated by a remote service.
Assuming a generous 1000000 words in the dictionary, and any non-letter ASCII printable separator allowed as a separator, this is equivalent to a 9 character random password with just lower case letters and digits, or a 7 character random password if all printable ASCII is allowed. It's about 46 bits of entropy. That is a bit low by modern minimum acceptable password length standards.