MapShaper A tool for topologically aware shape simplification. Reads and writes Shapefile, GeoJSON and TopoJSON formats.
RAWGraphs The missing link between spreadsheets and vector graphics. Raw is an open web app to create custom vector-based visualizations. Raw allows users to export visualizations in vector (SVG) or raster (PNG) format and embed them in your web page.
IndieMapper IndieMapper helps you make static, thematic maps from geographic data by bringing the best of traditional cartographic design to internet map-making.
Projection Wizard The interactive Projection Wizard helps cartographers select a map projection that is optimized for the geographical area and the map format.
ColorBrewer ColorBrewer is an online tool designed to help people select good color schemes for maps and other graphics.
TypeBrewer A Map Design Help Tool for Selecting Typography TypeBrewer is a free help tool that gives non-specialist mapmakers a chance to explore typography in a semi-structured environment.
OldMapsOnline The OldMapsOnline portal is an easy-to-use gateway to historical maps in libraries around the world.
Fieldpapers Field Papers is a tool to help you create a multi-page atlas of anywhere in the world that can then be quickly and easily reincorporated back into a digital, geospatial format. Field mapping without a GPS!
HistoryPin Historypin is a digital, user-generated archive of historical photos, videos, audio recordings and personal recollections, collected in a Google map interface.
NYC Space/Time Directory The New York Public Library is planning a major civic initiative aimed at turning historical maps and other geographic sources into a digital time-travel service for New York City.
MapKnitterMapKnitter by Public Lab | Turn images into maps
Overpass Turbo is a web-based data filtering tool for OpenStreetMap.
CitationMap
US Cencus Geocoder Census geocoder provides interactive & programmatic (REST) access to users interested in matching addresses to geographic locations and entities containing those addresses.