opensource project like visual nhibernate

I need to map 100 tabels for fluent nhibernate. I can do this by hand or by some tool. I found http://www.slyce.com/VisualNHibernate/ but it is not free. Does anyone k开发者_开发问答now any free tool?

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Visual NHibernate has a free 30-day trial. This should give you enough time to generate what you need.

Update: Visual NHibernate has now been open-sourced. See: Visual NHibernate open source announcement

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NHibernate Mapping Generator should work too.