The word Crudin is an acronyms of CRUD INterface.
Crudin is a mature system written in PHP that reads a MySQL database and dynamicly generates an interface with CRUD (Create,Read,Update and Delete) features.
You can use it to save hours and hours of programming when you have to build a custom CMS system, extranet or when you have to manage the content contained in a MySQL database
The Crudin not generates php files, it directly generates the interface. With a change in the database the system automatically fits, without any line of programmming.
Sounds promising, but cannot even download a demo without sending 20USD.