Geosetter - GeoSetter is a freeware tool for Windows (requires Internet Explorer 10 or higher) for showing and changing geo data and
QGIS - QGIS is a desktop geographic information system, or GIS.
Geotag - GeoTag is a freeware tool for Mac for showing and changing geo data of image files (e.g.
GRASS GIS - GRASS GIS is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization.
Houdahgeo - With HoudahGeo you may "pin" photos to locations where they were taken.
SAGA GIS - SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS)...