Geospatial Utilities
GIS Tools
Free browser-based tools for mapping, coordinate conversion, shapefiles, GeoJSON and everyday spatial data workflows.
Available tools
Choose a tool to get started.
UTM ↔ Latitude/Longitude Converter
Convert coordinates between UTM and geographic latitude/longitude directly in your browser.
Heat Map Generator
Create a heat map from latitude, longitude and optional value data.
Shapefile Viewer
Upload and inspect shapefiles on an interactive map without desktop GIS software.
Thematic Map Generator
Create choropleth and thematic maps from geographic areas and numeric values.
Shapefile Editor
Edit shapefile attributes and selected geometry features directly in the browser.
DMS ↔ Decimal Degrees Converter
Convert coordinates between degrees-minutes-seconds and decimal degree formats.
Distance Between Coordinates
Calculate the geographic distance between two latitude and longitude points.
GeoJSON Validator
Validate GeoJSON structure and identify common formatting and geometry problems.
GeoJSON Viewer
Paste or upload GeoJSON and display features on an interactive map.
WKT ↔ GeoJSON Converter
Convert spatial geometry between Well-Known Text and GeoJSON formats.
CSV Coordinates → GeoJSON
Convert CSV files containing latitude and longitude fields into GeoJSON features.
Polygon Area Calculator
Calculate the area of a polygon from coordinates or uploaded geometry.
About GIS Tools
Free browser-based tools for mapping, coordinate conversion, shapefiles, GeoJSON and everyday spatial data workflows. New utilities will be added as the collection grows.