Abstract: Testing and comparing mobile web sites by connecting mobile devices to an emulator computer; providing a web page that provides for a user selection of one or more of the connected mobile devices; providing a URL selection control that enables the user computer to select a URL of a target website to be tested; receiving from the user computer a selection of the URL of the target website to be tested and a selection of one or more mobile devices on which to test the target website; for each of the mobile devices selected by the user, connecting with the target website selected by the user and downloading at least one web page from the target website; assembling a web page comprising images of the web pages downloaded from the target website to each of the mobile devices; and sending the assembled web page to the user computer display.