Esri JSON to FlatGeobuf
Convert Esri JSON files to FlatGeobuf format
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About Esri JSON
Esri JSON is the native JSON format used by Esri's ArcGIS REST API for returning query results from Feature Services and Map Services. It uses a similar structure to GeoJSON but with Esri-specific geometry encoding, spatial reference definitions, and field type metadata.
You might convert from Esri JSON when you have queried an ArcGIS REST API and need to use the results in a non-Esri tool, when you want to display the features on a web map that expects GeoJSON, or when you need to perform spatial operations in an open-source GIS.
Frequently asked questions
How do I obtain an Esri JSON file from an ArcGIS service?
Query the Feature Service REST endpoint with the f=json parameter. Copy the response JSON and save it as a .json file, or use the service's Query page to download results directly.
What is the difference between Esri JSON and GeoJSON?
The main differences are geometry encoding (Esri uses "rings" and "paths" rather than GeoJSON coordinate arrays) and spatial reference (Esri uses wkid codes rather than CRS URIs). Both represent the same features but are not directly interchangeable.
Will the spatial reference be preserved after conversion?
Yes — the wkid from the spatialReference object in the Esri JSON is used to determine the source CRS, and the output is reprojected to WGS 84 (EPSG:4326) automatically.
More Esri JSON Conversions
Convert Esri JSON files to other popular formats
to GeoJSON
.geojson
to KML
.kml
to Shapefile
.zip
to CSV
.csv
to GPX
.gpx
to GeoPackage
.gpkg
to JSON-FG
.json
to MVT
.mvt
to PostgreSQL Dump
.sql
to PMTiles
.pmtiles
to MBTiles
.mbtiles
to DXF
.dxf
to PDF
to GML
.gml
to Excel (XLSX)
.xlsx
to OpenDocument Spreadsheet
.ods
to GeoRSS
.xml
to MapInfo TAB
.tab
to File Geodatabase
.gdb.zip
to SpatiaLite
.sqlite
to GeoJSON Sequences
.geojsonl
to DGN (Microstation)
.dgn
to S57 Nautical Charts
.000
Convert to FlatGeobuf From Other Formats
Convert other geospatial formats to FlatGeobuf
from GeoJSON
.geojson
from KML
.kml
from Shapefile
.zip
from CSV
.csv
from GPX
.gpx
from GeoPackage
.gpkg
from JSON-FG
.json
from MVT
.mvt
from PMTiles
.pmtiles
from MBTiles
.mbtiles
from DXF
.dxf
from TopoJSON
.topojson
from GML
.gml
from OpenStreetMap
.osm
from Excel (XLSX)
.xlsx
from OpenDocument Spreadsheet
.ods
from SVG
.svg
from GeoRSS
.xml
from MapInfo TAB
.tab
from File Geodatabase
.gdb.zip
from SpatiaLite
.sqlite
from GeoJSON Sequences
.geojsonl
from DGN (Microstation)
.dgn
from S57 Nautical Charts
.000
Visualize Your Data
View your geospatial files on an interactive map
Coordinate Conversion Tools
Convert between different coordinate systems