I could not locate if this is in the options, I would like to have the database browser open on application startup without making a connection. I found where I can disable login on startup but I want the database browser itself to come up.
Currently, this not possible. Please try the workaround to set up the Auto login to one of your database in the login screen. This will let Toad login automatically and display the Database Browser for you. You can check the option for auto login to your database at the Toad login screen on the left hand side.