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Screenshot of TileMill
Author: MapBox
Platforms: macOS, Linux, and Windows
Version: 0.10.1 (2012-10-10)
Language: English
License: BSD
Website: https://tilemill-project.github.io/tilemill/
Source code: https://github.com/tilemill-project/tilemill

Mapnik webfrontend for custom mapstyles

TileMill is a design environment developed by MapBox for cartography, constituting Mapnik as a renderer, CartoCSS as a stylesheet language, and a locally-served web interface with node.js as a server and based on Backbone.js for the client. Since version 0.9.0, the web server is wrapped with a native GUI on all supported platforms.

TileMill can load shapefiles or connect to a PostGIS database for rendering. Raster data such as GeoTIFFs can also be rendered.

By default TileMill renders to an MBTiles file, an SQLite bundle of tile images that enables compression and faster transfers. PNG and PDF output is also supported for static maps. Mercator is the main supported projection.

By 2015, TileMill was no longer under active development by Mapbox, which replaced it with Mapbox Studio, an online system that uses vector tiles. The Kosmtik project launched as an actively developed alternative to TileMill. In 2016, Mapbox transferred management of the TileMill project to a community of volunteer developers.