Resources
GIS formats in EpicMaps
A practical list of what you can bring into the editor now — and what we’re aiming to support next.

Supported today
- GeoJSON (.geojson, .json) — FeatureCollection, Feature, or Geometry
- CSV (.csv) with lat/lng columns or WKT geometry
- Remote GeoJSON over HTTPS (CORS required)
- MapLibre Style JSON URLs for custom basemaps

Stored as
Features persist as PostGIS geometries (EPSG:4326) with JSON properties. Layer metadata (name, visibility, lock, style defaults) lives alongside.

Coming later
- KML / KMZ
- Shapefile (zipped)
- GeoPackage
- GeoTIFF / COG overlays
- Live PostgreSQL / WFS connections beyond one-shot GeoJSON URLs

Tips
Prefer WGS84 lon/lat. Keep CSV headers obvious (latitude/longitude or wkt). Large files sync as full feature replacements — batch thoughtfully.