GIS File Validator
Upload a GIS file to instantly validate its structure, geometry integrity, coordinate reference system, and layer statistics. No data is stored — files are processed on an isolated GDAL worker (Fly.io, Frankfurt/EU) and deleted immediately after validation.
Supported Formats
GeoJSON Validator
Check a GeoJSON file for structural validity, geometry integrity, and spatial metadata.
Shapefile Validator
Validate a zipped ESRI Shapefile for required components and spatial correctness.
GeoPackage Validator
Validate a GeoPackage file for SQLite integrity, spatial tables, and geometry compliance.
KML Validator
Validate a KML file for XML integrity, Placemark geometry, and coordinate correctness.
GPX Validator
Validate a GPX file for XML integrity, track structure, waypoint coordinates, and elevation data.
GML Validator
Validate a GML file for XML schema compliance, geometry encoding, and spatial reference system definitions.
WKT Validator
Validate WKT geometry strings for syntax correctness and coordinate completeness.
TopoJSON Validator
Validate a TopoJSON file for topology structure, arc definitions, and object geometry references.
How Validation Works
Upload Your File
Drop or select your GIS file. The file is transmitted over HTTPS to a sandboxed GDAL processing worker.
GDAL Inspection
The backend runs ogrinfo to inspect layer structure, geometry types, feature counts, CRS, and any structural errors.
Instant Report
A structured validation report is returned with valid/invalid status, error details, warnings, and per-layer statistics.