A simple module for basic GUID/UUID needs, which also comes with a handy base62 output, but not updated in a long while.
If you need some serious UUID foo, check out the documentation of Data::UUID and use Data::GUID (which RJBS plans to replace UUID with).
nice, simple, easy to use
thanks so much for this module
I've used this on many occaisions now and it's always help keep things 'unique'