Building maps nowadays is quite easy but its a long time process. TileMill helps you build beautiful interactive maps easily. Build upon some great modern open source libraries (Mapnik, node.js, backbone.js, express, CodeMirror), TileMill supports mobile and by leveraging the portable, fast MBTiles format, each TileMill map will look and work great on the web but offline also.
You can also add a great number of features on your map like tooltips or clickable popups. You can reveal details in your data by embedding numbers, graphs or images. TileMill leverages UTF-8 grid technology allowing you to leverage interactivity for hundreds of thousands of data points while keeping high performance.
TileMill – build beautiful maps easily – Preview