Geosetter - GeoSetter is a freeware tool for Windows (requires Internet Explorer 10 or higher) for showing and changing geo data and
Jimpl - Free online photo metadata and EXIF data viewer. Uncover hidden data of your pictures. Upload a photo to find where, when, and how it was taken.
Geotag - GeoTag is a freeware tool for Mac for showing and changing geo data of image files (e.g.
PhotoME - PhotoME is a powerful tool to show and edit the meta data of image files.
Houdahgeo - With HoudahGeo you may "pin" photos to locations where they were taken.
ExifToolGUI - Graphical user interface to https://alternativeto.