CartoDB is an easy to use, online mapping platform that allows you to analyze and visualize geospatial data. Since it is designed to be accessible to users without any training in geographic information systems (GIS), anyone can use CartoDB to display location-based data on an interactive map.
To get started, simply upload a geospatial data file in any format to CartoDB. If you want, you can upload additional datasets to create a map with multiple layers. Choose from a variety of different visualizations and base maps. Once you’ve created a map, share it with others! CartoDB lets you link to your visualization, embed it in a webpage, or copy it to another application.
CartoDB boasts a number of impressive users, including Google, Twitter, NASA, and National Geographic. Take a look at the CartoDB gallery for examples of maps created by CartoDB users.