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Tilemill is an open-source map design program (multi-platform) using the mapnik rendering engine. Maps are styled in Carto (a CSS-like language) using a variety of data sources (PostGIS databases, shapefiles, GeoJSON, spreadsheets), and can be exported in MBTiles, Vectors and Raster graphics.

Tilemill is an open-source map design program (multi-platform) using the mapnik rendering engine. Maps are styled in Carto (a CSS-like language) using a variety of data sources (PostGIS databases, shapefiles, GeoJSON, spreadsheets), and can be exported in MBTiles, Vectors and Raster graphics. Tilemill is developed by Development Seed.