I once found a great but simple webpage that has a drop down with several text-based GIS formats such as GeoJSON and WKT, and a text box to copy/paste your data. The feature is then drawn on a world map. You can continue to add shapes on the same map.

I've lost this page, and I can't find it. It was super-useful, but I forgot to bookmark it.

So, does anyone know the page, or any page where I can paste WKT and GeoJSON to see them displayed on a map?

up vote 34 down vote accepted

Look at Are there any online WKT editors?

GeoJSON and WKT

GeoJSON

WKT

  • That first link for OpenLayers is the exact page I was looking for!! Thanks so much - I'm not sure why I couldn't find it. – JPhi Oct 2 '14 at 3:07

I created this little utility for a co-worker to plot multiple WKT or GeoJSON geometries on a Leaflet map. You can fork it and tailor it to your needs.

http://jsfiddle.net/asnyder14/9dxbcr4f/embedded/result/

  • 1
    Fantastic tool, thanks! (if'd be great it could accept more than WKT object at once... ;)) – jjmontes Oct 1 '15 at 22:52
  • Exist a way for know when a point is inside Polygon – jose920405 Mar 10 '17 at 14:41

In case anyone comes across this question and needs to convert to/from Esri (ArcGIS) json, geoJson, or WKT, I created a small application called geometry-inspector. It is much like the listed applications in the accepted answer, but with the improvement that it supports Esri's json format.

Hope it helps someone!

mapshaper worked well for huge GeoJson file but unfortunately it plots on white background instead of map.

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