Geospatial Utilities
Geographic Information System (GIS) Tools
Free browser-based tools for map creation, shapefile processing, GeoJSON, coordinate conversion and everyday spatial data workflows.
Available tools
Choose a tool to get started.
Choropleth Map Generator
Create publication-ready choropleth maps from Excel or CSV data using built-in administrative boundaries.
Shapefile Viewer
Upload and inspect shapefile geometry and attributes on an interactive map without desktop GIS software.
Merge Polygons in Shapefile
Upload one shapefile, select two or more polygons and merge them into a single polygon.
Combine Shapefiles
Upload two compatible shapefiles, combine their features and download them as one new shapefile.
GeoJSON Validator / Viewer
Validate GeoJSON structure, identify common problems and preview geographic features on an interactive map.
CSV Coordinates → GeoJSON
Convert CSV files containing latitude and longitude fields into GeoJSON point features.
WKT ↔ GeoJSON Converter
Convert spatial geometry between Well-Known Text and GeoJSON formats.
Distance Between Coordinates
Calculate the geographic distance between two latitude and longitude points.
DMS ↔ Decimal Degrees Converter
Convert coordinates between degrees-minutes-seconds and decimal degree formats.
About Geographic Information System (GIS) Tools
Free browser-based tools for map creation, shapefile processing, GeoJSON, coordinate conversion and everyday spatial data workflows. New utilities will be added as the collection grows.