Free online tool
Open and inspect GeoJSON on a real map
Import a .geojson or .json file, inspect up to 50 geometries immediately, then save the map with Google when you want to keep or share it.
Your file stays in this browser until you choose to save.
Need another format? Paste WKT or import CSV
.geojson or .json file in the uploader above.To export GeoJSON directly from PostgreSQL / PostGIS for inspection in this viewer:
-- Export a PostGIS geometry column as GeoJSON in EPSG:4326 SELECT jsonb_build_object( 'type', 'Feature', 'geometry', ST_AsGeoJSON(ST_Transform(geom, 4326))::jsonb, 'properties', to_jsonb(p) - 'geom' ) AS geojson_feature FROM parcels AS p LIMIT 10;
A GeoJSON viewer parses and renders geographic data formatted as JSON on an interactive web map. It plots Points, LineStrings, Polygons, and FeatureCollections, allowing you to inspect coordinate accuracy and feature properties in real time.
WKT Studio supports all standard RFC 7946 GeoJSON structures: FeatureCollection, Feature, Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon, and GeometryCollection.
Standard GeoJSON uses the WGS 84 coordinate reference system (EPSG:4326) with coordinates written in [longitude, latitude] (X, Y) order. If your geometry lands in the ocean or Antarctica, coordinates may be reversed or in a projected system (e.g. Web Mercator EPSG:3857).
Yes. Once loaded, you can export your features to WKT using the built-in Geometry Converter or export as CSV and PostGIS SQL INSERT statements.
No. WKT Studio operates entirely in your browser with no installation, software plugins, or account registration required for basic inspection.