Web app

topology-checker-web                 # http://127.0.0.1:8080
topology-checker-web --port 9000     # or TOPOLOGY_WEB_PORT=9000; 0 picks a free port

Install builds target/release/topology-checker-web. It listens on 127.0.0.1 only and rejects requests with another Host or Origin.

1. Import a file of up to 512 MiB: GeoJSON, GeoPackage, FlatGeobuf, GeoParquet, KML, KMZ, GPX, or a zipped Shapefile. Or open one of the bundled examples.
2. Choose layers, a working CRS, a tolerance and rules.
3. Run the checks, then inspect violations in the table and on the map.
4. Export violations as one violations layer with the CLI columns. GeoJSON, KML, KMZ and GPX use WGS84. GeoPackage, FlatGeobuf and GeoParquet use the working CRS. A JSON report is also available.
5. Save a project zip to reopen the setup later.

Each browser tab has its own workspace. Workspaces idle for 4 hours are deleted.