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GeoJSON conversion problem

Convert GeoJSON Properties to CSV Without Losing Geometry Context

Flatten GeoJSON feature properties into CSV while preserving geometry type, coordinates and feature identity.

Use the matching tool

GeoJSON to CSV

Open GeoJSON to CSV

What the error actually means

A GeoJSON Feature can contain nested properties and several geometry types. A flat CSV needs a policy for geometry representation, nested fields and features without properties. Points map naturally to longitude and latitude; lines and polygons do not.

Likely causes

  • Properties contain nested objects.
  • The collection mixes geometry types.
  • Polygons are forced into point columns.
  • Feature IDs are absent or duplicated.

Geometry-aware export

Problem

Put a polygon coordinate array into latitude

Correct pattern

Preserve geometry as JSON/WKT or use an explicit centroid workflow

A safe repair workflow

  1. 1Profile geometry types.
  2. 2Choose how geometry will be represented.
  3. 3Flatten required property paths.
  4. 4Retain or create a stable feature identifier.

How to verify the result

A file that downloads successfully is not automatically a correct file. Check the result at both the structural and business-data levels:

  • Feature counts match.
  • Geometry type remains known.
  • Nested properties are not overwritten.
  • Known points retain longitude-latitude order.

Read the deeper guides

Convert CSV Coordinates to GeoJSON Without Swapping Latitude and LongitudeA practical CSV-to-GeoJSON workflow with coordinate checks, a worked example, and fixes for the mistakes that put points in the wrong place.Convert CSV to JSON (Complete Guide with Examples)Learn how to convert CSV files to JSON format. Handle nested objects, arrays, and complex transformations with practical examples.