Processed locally — your file never leaves your device
GeoJSON Statistics
Summarize a GeoJSON, KML or GPX file — feature counts, geometry types, total length and area, extent and attribute statistics.
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, .kml or .gpx file.
- Your browser reads it locally and computes every statistic on your device.
- Review feature counts, geometry types, total length and area, the bounding box and per-attribute summaries.
- Drop a different file anytime — nothing is ever uploaded.
Frequently asked questions
- Is my file uploaded anywhere?
- No. Every statistic is computed locally in your browser.
- How are length and area calculated?
- Geodesically, assuming WGS 84 longitude/latitude input — the standard for GeoJSON. If your data is in a projected system, reproject it with the CRS Converter first, otherwise the numbers will be meaningless.
- What attribute statistics are shown?
- For every attribute: how many features have it, how many are missing it, and how many distinct values it has. Attributes whose values are essentially all numeric also get min, max and mean.
- Are features without geometry counted?
- They are counted as features and reported separately, but excluded from length, area and extent — a null geometry has no measurable size.