Geo File Viewer lets you open GeoJSON, GPX, and KML documents directly on an interactive map without an account or cloud service. Load the built-in sample to explore the app immediately, then tap a map feature or use the searchable feature list to inspect its name, geometry type, coordinates, and properties. Switch between street, reference, and topography maps, recenter with one tap, and export all data or the selected feature as a new GeoJSON file. Recent Files makes reopening documents quick. The app supports points, lines, polygons, and multipart geometries, and warns when a large file may take longer to load.