GeoSpatial File Inspector

Upload a GeoJSON or a Shapefile and get an instant summary — feature count, geometry type, CRS, bounds, attributes, invalid/empty/duplicate geometries, and a chart per attribute column. Free, runs entirely in your browser: the file never leaves your computer.

Upload a file — .geojson, or a shapefile as a single .zip or as .shp/.dbf/.shx selected together — and get an instant summary of what’s actually in it, before you dig into any one check.

Tip

Private by design. Your file is processed entirely in your browser (Python via WebAssembly) — it’s never uploaded to any server, including ours. Nothing to configure, nothing to trust: the code never gets the chance to see your data.

The code itself isn’t shown here — it’s a fixed, non-editable summary using GeoPandas/Shapely underneath; see the full article for the actual code, editable and explained one stat at a time.

First run loads the Python engine — expect about a minute. Instant after that, and again each time you come back to this page.

Want the full picture instead of just a summary? The full article walks through what each of these stats means and why it matters, in Python and R. Once you know what’s in your file, the CRS Inspector, the Geometry Validator, and the Topology Checker are the natural next steps.