GeoJSON Map Viewer
Upload GeoJSON files and display them on an interactive Leaflet map. Color-code and adjust thickness per property value, toggle layers, and click features to inspect their attributes.
Frequently Asked Questions
What file formats are supported?
Standard GeoJSON files (.geojson or .json) containing a FeatureCollection, individual Features, or bare geometries. All geometry types are supported: Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon, and GeometryCollection.
How do I style features by a property?
After uploading a file, expand the layer controls in the sidebar. Use the "Style by" dropdown to pick a property. Each unique value gets its own color and stroke width slider so you can style them independently.
Can I load multiple GeoJSON files at once?
Yes. Each uploaded file becomes a separate layer with its own visibility toggle, color scheme, and style settings. You can drag and drop multiple files simultaneously.
Is my data uploaded to a server?
No. All file parsing and map rendering happens entirely in your browser. Your geographic data never leaves your device.
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