This article describes the file naming conventions for the Slippy Map application. Tiles are 256 × 256 pixel PNG files Each zoom level is a directory, each column is a subdirectory, and each tile in that column is a file Filename(url) format is /zoom/x/y.png The slippy map expects tiles to be served up at URLs following this scheme, so all tile server URLs look pretty similar.
![Slippy map tilenames - OpenStreetMap Wiki](https://cdn-ak-scissors.b.st-hatena.com/image/square/3c2e8e5be1ad99a72e29a142bfb70301bc70c5b3/height=288;version=1;width=512/https%3A%2F%2Fwiki.openstreetmap.org%2Fw%2Fimages%2Fthumb%2Fa%2Fa5%2FLatlon_to_tile.png%2F450px-Latlon_to_tile.png)