Offline Map Maker is a tool that help you to get offline tile images from many online maps providers, including 500+ maps types.

It supports multi-zoom level images download, supports kml and gpx as input parameters, can output html files for leaflet, openlayers and googleapi, can output bmp, jpg, tif, png, ecw, sgi, img, kmz as a big map, can output mbtiles for mobile apps to use.