I still don't really understand what this is

I found this because I was looking for something like the old PasswordMaker.org tool.

You would have a master password and it would generate a separate password using the sites URL and your master password, so every password would be different but all you have to remember is the master password.

Does this do the same thing except that it integrates with KeePass?

If so, then this is exactly what I need because PasswordMaker.org doesn’t integrate with any password managers.