Online GeoJSON Viewer & Map Visualizer
Open, validate, inspect, and visualize GeoJSON (.geojson, .json, .kml) files directly in your web browser. Polygons, LineStrings, coordinate inspection, feature attribute tables, and zero cloud uploads.
The Complete Guide to GeoJSON (RFC 7946) & Online Geographic Information Systems (GIS)
GeoJSON is an open, standard format designed for representing simple geographical features along with their non-spatial attributes. Based on the JavaScript Object Notation (JSON) format and standardized under RFC 7946 by the Internet Engineering Task Force (IETF), GeoJSON utilizes the World Geodetic System 1984 (WGS 84) coordinate reference system (longitude, latitude in decimal degrees) to encode points, lines, polygons, and multi-part geometries.
GeoJSON has become the de facto data exchange protocol for modern interactive mapping libraries (Leaflet, Mapbox GL JS, OpenLayers, Google Maps API) and urban data science. The HiFi Toolkit Online GeoJSON Viewer provides a client-side vector workspace to audit geometry shapes, verify longitude/latitude coordinate ordering, and inspect property tables seamlessly.
Key GeoJSON Geometric Primitives
[longitude, latitude]) representing landmarks, stores, or sensors.How to View and Inspect GeoJSON Files Online
- Upload File: Click Open GeoJSON / KML or drag and drop your spatial file into the viewer.
- Explore Views: Toggle between
Map Preview,Feature Table, andJSON Source. - Export Data: Copy formatted GeoJSON or inspect coordinate rings directly.
