File contents. Make sure your file contains fields, not just lines and dots. We support the EPSG:4326 WGS 84 coordinate system.
File format. You can upload .shp, .shx, .sbn, .sbx, .dbf, .prj, .zip, .kml, .json, .geojson., .kmz, .gpkg, .gdb,.gmt, .jml files. If you have files with a different file format, you can convert them using programs like
MapShaper, for example.
File size. The maximum file size you can upload to the web app is 10 MB. If it's larger, compress it to .zip.
Name of shapefiles. If you store your files with fields in .shp format, you need to upload them together with the supporting files. All files must have matching names.