The maps are stored locally on the harddrive and can also be used when being offline. You can download the maps at different zoom levels for the selected map region. Using this feature you can download a map e.g. before going on a trip. myOSM provides a bookmark feature for easy access to often used locations. You can also search for locations and the map can be saved to a file or sent to a printer.
Currently, myOSM supports the following map types: