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KML at a glance
KML
KML is strongly associated with the Google Earth ecosystem and was later standardized through OGC.
KMZ at a glance
KMZ
KMZ grew out of the practical need to distribute KML together with related resources such as overlays and linked assets.
Format comparison
| Feature | KML | KMZ |
|---|---|---|
| File type | Not available | Not available |
| Extensions |
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| MIME type |
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| Compression / quality | Not available | Not available |
| File size characteristics | Not available | Not available |
| Compatibility | Not available | Not available |
| Editability | Not available | Not available |
| Created year | Not available | Not available |
| Inventor | Not available | Not available |
| Status | Not available | Not available |
| Transparency | Not available | Not available |
| Animation | Not available | Not available |
| Primary use cases |
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| Common software |
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| Archival suitability | Not available | Not available |
| Metadata handling | Not available | Not available |
| Delivery profile | Not available | Not available |
| Workflow fit | Not available | Not available |
| Vector scaling | Not available | Not available |
| Reflowable text | Not available | Not available |
| Structured data | Not available | Not available |
| Streaming ready | Not available | Not available |
When to use each format
When to use KML
- system exchange
- automation
- specialized interoperability
- Good for visual geospatial overlays and placemarks.
When to use KMZ
- system exchange
- automation
- specialized interoperability
- Convenient for sharing KML plus supporting assets together.
FAQs
Why convert KML to KMZ?
Choose KMZ as target when a KML-based map needs embedded images, icons, or overlays to move together as one deliverable.
What changes when converting KML to KMZ?
Convert to KMZ when a KML-based map needs embedded images, icons, or overlays to move together as one deliverable. It is the right target for portable Google Earth projects, offline map bundles, and shareable geospatial packages that recipients should be able to open without relinking external resources.
What should I review after converting KML to KMZ?
After conversion, review these destination checks: Open converted output in Google Earth and verify behavior on real samples; Compare output against the expected depends quality profile; Still inherits KML's presentation-oriented trade-offs.
How can I keep quality stable in KML to KMZ conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Not the most developer-friendly target for API-centric geospatial workflows; Still inherits KML's presentation-oriented trade-offs; Validate destination compatibility before large-batch conversion.