A Notes database can be used directly through the Domino server as a web application, with some modifications. Your question is very basic and implies that you don’t know much about Lotus Notes/Domino. I strongly urge you to start reading and get training.
Internotes, referred to below, is a tool to convert existing Notes records into static HTML, the way I read the information.
InterNotes is used to publish Lotus Notes forms. It will convert your forms into HTML. See the following article: