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Useful resources for your map project

  • Created: Dec, 03, 2020
  • Last Updated: May, 12, 2021

This documentation is always evolving.

Convert Shape files to import them as .geoJson files:
Make sure to include “EPSG:4326” as the target source. 4326 is the EPSG identifier of WGS84.
WGS84 comprises a standard coordinate frame for the Earth, a datum/reference ellipsoid for raw altitude data, and a gravitational equipotential surface (the geoid) that defines the nominal sea level. Mapcreator natively supports WGS84.

Convert .kml files with location markers (and additional information for interactivities) to .xslx files:

Create a .geoJson file:

Online linter: or

Everything there is to know about coordinate systems: