You already have the tools to do this. You don't need to send your DB to anybody.
http://dev.mysql.com/doc/refman/5.1/en/mysqldump.html
If you want to dump only the schema, you just use a command (from a command line, of course) such as
mysqldump --no_data
yourDBName
or, if the DB is user/password protected as it should be:
mysqldump --no_data -u
yourUserName -p
yourPassword yourDBName
The MySQL docs take a little getting used to, but once you learn your way around, most everything you need is in them.