CSV is a simple tabular format with coordinates in columns, GeoJSON is a full geo format with geometry support. CSV is simpler, GeoJSON is more powerful.
| Criteria | CSV | GeoJSON |
|---|---|---|
| Open in Excel | ✓ | ✗ |
| Polygons & lines | ✗ | ✓ |
| Simplicity | ✓ | ✗ |
| Web maps | ✗ | ✓ |
| File size | Small | Medium |
For point data (POI), Excel/Sheets import, simple analysis.
For polygons, lines, web maps, geometry workflows.