GeoJSON Map Viewer & RFC 7946 Validator
Render GeoJSON Point, LineString, Polygon, and MultiPolygon collections offline. Project geographical coordinates onto an HTML5 vector canvas, audit longitude/latitude boundaries, and inspect feature properties without mapping servers.
GEOJSON STRING INPUT
0 lines
2D VECTOR MAP PROJECTION
Ready
Hover/click features in future iterations. All geometries auto-fitted to canvas extent.
Frequently Asked Questions
What coordinate order does RFC 7946 mandate?
GeoJSON requires coordinates in [longitude, latitude] order (East/West first, then North/South), contrasting with human-spoken "latitude and longitude".
Are external map tiles or remote API keys required?
No. Geometries are rendered natively on an HTML5 2D Canvas using local mathematical equirectangular projection with zero external tile server or API dependencies.