I made a map with QGIS that I really would like to export in Google map format (Zoom/X/Y.png).
I search everywhere and no comfortable answer was found.
For now, I am making a map using TillMill, export it in MBTiles and then use mb-util (https://github.com/mapbox/mbutil) to convert it to Z/X/Y format. This is painful, and the QGIs map style interface is much better than the hand coded Carto CSS for TileMill