Free and Open Source GIS on

The gis.stackexchange community keeps on growing and it’s questions and answers span a wide spectrum of GIS-related topics. As of today, the page lists 2,700 questions and 6,400 answers.

As was to be expected, ‘arcgis’ (549 times) is the most used tag followed by ‘arcgis-10.0’ ;)

From an open source perspective, PostGIS gets most attention (rank 8), followed closely by OpenLayers (rank 9) and Geoserver (rank 10). QGIS is the highest-ranked desktop GIS (rank 13). Users of other open source desktop GIS like uDig or gvSIG don’t seem to be using this platform yet.

Here’s the full list of open source GIS tags with a count of more than 10:

postgis × 149
openlayers × 137
geoserver × 121
qgis × 97
open-source × 94
grass × 85
gdal × 68
postgresql × 32
pgrouting × 20
geodjango × 14
mapnik × 13


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