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JSON at a glance
JSON
RFC 8259 describes JSON as derived from ECMAScript object literals and notes its design goals as minimal, portable, textual, and a subset of JavaScript.
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 | JSON | KMZ |
|---|---|---|
| File type | Other | Other |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | depends |
| File size characteristics | depends | depends |
| Compatibility | moderate | moderate |
| Editability | moderate | moderate |
| Created year | 2001 | 2005 |
| Inventor | Douglas Crockford | |
| 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 | Not supported | Not 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 JSON
- system exchange
- automation
- specialized interoperability
- Easy to parse across nearly every modern programming environment.
When to use KMZ
- system exchange
- automation
- specialized interoperability
- Convenient for sharing KML plus supporting assets together.
FAQs
Why convert JSON 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 JSON 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 JSON 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 JSON 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.