Formats & limits

A single public contract for what GeoJSON Cloud imports, exports, and limits. Values are derived from the product plan definitions and converter behavior.

All plans share a ~10 MB browser file ceiling so parse and map rendering stay usable. Pro does not raise that size—it unlocks unlimited conversions, multi-format export, and more projects. Signed-in free accounts also have a monthly conversion counter in the editor.

Plan limits

Guest, free account, and Pro limits
PlanConversionsFile sizeProjectsEditor exportsSharing
Guest (no account)Unlimited local convert/validate in tools & editor10 MBNone (browser session / local only)GeoJSON from editor; tools download their outputNone
Free account10 tracked conversions / month in the signed-in editor10 MB1 saved cloud projectgeojsonPublic share/embed with GeoJSON Cloud credit
ProUnlimited10 MB (same browser ceiling as Free)100 cloud projectsgeojson, kml, csv, wkt, topojson, shapefilePublic share/embed without free-plan credit

Format matrix

Supported formats and behavior
FormatExtensionsGuestFree accountProPropertiesCRSNotes
GeoJSON.geojson, .jsonImport/export · 10 MBImport/export (geojson) · 10 MB · signed-in conversions countedImport/export (geojson, kml, csv, wkt, topojson, shapefile) · 10 MBPreserved on import/exportAssumed WGS 84 (EPSG:4326) unless you reproject firstNative format. Feature or FeatureCollection accepted; Geometry-only roots can be promoted to Features on import.
KML.kml, .xmlImport · 10 MBImport · 10 MB · editor export to KML requires ProImport/export · 10 MBImported via @mapbox/togeojson; KML styles are not 1:1 in GeoJSONWGS 84 expectedNetwork links, overlays, and rich styling are not imported. Export writes simple Placemarks.
Shapefile.zip preferred (.shp/.shx/.dbf)Import ZIP · 10 MBImport · 10 MB · editor export requires ProImport/export ZIP · 10 MBDBF attributes become feature properties when present.prj may exist; import is not a full automatic reproject pipelineTop-level ZIP members work best. Multi-layer ZIPs depend on shpjs. Export produces zipped components.
CSV.csvImport · 10 MBImport · 10 MB · editor export requires ProImport/export · 10 MBNon-coordinate columns become propertiesLon/lat assumed; no CRS transform on importLatitude/longitude-like headers required. Invalid coordinate rows are skipped.
WKT.wkt, .txtImport · 10 MBImport · 10 MB · editor export requires ProImport/export · 10 MBGeometry-first import (empty properties unless provided elsewhere)Coordinates treated as suppliedOne WKT geometry per input is the supported path.
TopoJSON.topojson, .topo.jsonImport · 10 MBImport · 10 MBImport · 10 MBConverted Features keep properties when presentAssumed WGS 84 after conversionImport only. Export via GeoJSON or other supported outputs.
Reproject (GeoJSON)GeoJSON + proj4 CRSLocal transform · 10 MBLocal transform · 10 MBLocal transform · 10 MBPreserved; only coordinates changeSource CRS required; target defaults to EPSG:4326Uses proj4. An incorrect source CRS silently produces wrong coordinates.

CRS & reprojection

Most converters assume coordinates are already suitable for web maps (WGS 84 lon/lat). The dedicated reproject tool transforms GeoJSON with proj4 when you supply a correct source CRS. We do not silently guess CRS from every vendor file.

Related docs