Mapper August 2015
Web app for quickly plotting markers, polylines, polygons, heatmaps, etc. on a map.
Got geocoordinates but don't know how to see them quickly? Just paste them into Mapper! Doesn't matter if it's comma-separated, whitespace-separated, or something else. You can add multiple datasets and each one can be configured to plot different symbols or styles. Once you're happy with the visualization, it even has a button that gives you a link for sharing.