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GeoJSON at a glance
GeoJSON
Convert to GeoJSON when the output needs to feed browser maps, lightweight GIS services, geospatial APIs, or data pipelines where human-readable JSON is an advantage.
It is a strong target for feature exchange, boundary overlays, route visualization, and developer-friendly map integrations.
KML at a glance
KML
Convert to KML when the output needs to open cleanly in Google Earth or another Earth-browser workflow, especially for annotated map layers, site plans, territory overlays, and location datasets that benefit from styling and folder-based organization.
Format comparison
| Feature | GeoJSON | KML |
|---|---|---|
| File type | Other | Other |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | depends | depends |
| Compatibility | moderate | moderate |
| Editability | moderate | moderate |
| Created year | 2008 | 2004 |
| Inventor | GeoJSON community and IETF GeoJSON Working Group | Keyhole, Inc. |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | moderate | moderate |
| Workflow fit | exchange | exchange |
| Vector scaling | Supported | Supported |
| Reflowable text | Not supported | Not supported |
| Structured data | Supported | Supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use GeoJSON
- system exchange
- automation
- specialized interoperability
- Easy fit for web and API workflows.
When to use KML
- system exchange
- automation
- specialized interoperability
- Good for visual geospatial overlays and placemarks.
FAQs
Why convert GeoJSON to KML?
Convert to KML when the output needs to open cleanly in Google Earth or another Earth-browser workflow, especially for annotated map layers, site plans, territory overlays, and location datasets that benefit from styling and folder-based organization.
What changes when converting GeoJSON to KML?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting GeoJSON to KML?
Check the exported file for Less convenient than JSON-based formats for developer-first API workflows.; Presentation-heavy constructs do not always map neatly into other GIS formats..