Processed locally — your file never leaves your device
GeoJSON Viewer
Open and view GeoJSON files on a map, with feature counts, geometry types and a property preview — entirely in your browser.
Drop a GeoJSON, TopoJSON, KML, KMZ, GPX, zipped Shapefile or CSV file hereor click to choose a file from your deviceNothing is uploaded — the file is detected and processed entirely on your device.
How it works
- Select or drop a .geojson (or .json) file.
- Your browser parses it locally and computes feature counts, geometry types and a bounding box.
- The map zooms to your data automatically — nothing is uploaded to render it.
- Browse the property preview below the map.
Frequently asked questions
- Is my GeoJSON file uploaded anywhere?
- No. The file is parsed and rendered entirely on your device. The only network requests this page makes are for basemap tile images — never your geometries, coordinates or properties.
- Which geometry types are supported?
- Point, MultiPoint, LineString, MultiLineString, Polygon and MultiPolygon.
- Does the map zoom to my data automatically?
- Yes — the map fits to your dataset's bounding box as soon as it loads.
- What if my GeoJSON has structural problems?
- The viewer is tolerant of individual malformed features and will still show what it can. For a detailed list of problems, use the GeoJSON Validator.
- How large a file can I open?
- There's no server upload limit, since nothing is uploaded. The practical maximum depends on your device's memory and browser.