KMZ to KML Converter
Extract the KML from any KMZ file in your browser — see bundled icons/overlays too. No upload, no Google Earth install needed.
Open a file
Everything runs in your browser — files are never uploaded to a server.
Field guide: KMZ to KML Converter
A KMZ is nothing mystical — it's a ZIP archive with a doc.kml inside, plus any icons and image overlays the map references. Google Earth made the format the default way people share maps, which is why drone flight areas, real-estate boundaries and hiking routes all arrive as .kmz — and why so many tools that want plain KML choke on it. This converter unzips the archive in your browser (using the browser's native decompression — no library, no upload), hands you the KML, and lists every bundled file so nothing silently disappears.
The deflate decompression and ZIP directory parsing run entirely client-side, so a KMZ of your property survey or commercial site plan never leaves your machine. If the KMZ bundles custom icons or a georeferenced image overlay, those are offered as separate downloads — the extracted KML may reference them by relative path, which is worth knowing before you re-host it.
Field tips
- If a converter or GIS tool rejects your 'KML', check the first two bytes — PK means it's actually a KMZ; extract it here first.
- Ground-overlay KMZs (georeferenced images) keep their meaning only if the image files stay alongside the KML — download both and preserve the folder structure.
- Need the data as GeoJSON or CSV instead? Extract the KML here, then run it through our KML Viewer for format conversion.
Conversions run locally in your browser and follow the cited specifications. Always verify critical output in the target application; for survey-grade or legal data, confirm coordinate systems and datums with your GIS team.
KMZ to KML Converter — Extract the KML from any KMZ file in your browser — see bundled icons/overlays too. No upload, no Google Earth install needed. Runs 100% in your browser: no upload, no sign-up, no size limits beyond your device.
About KMZ to KML Converter
A KMZ is nothing mystical — it's a ZIP archive with a doc.kml inside, plus any icons and image overlays the map references. Google Earth made the format the default way people share maps, which is why drone flight areas, real-estate boundaries and hiking routes all arrive as .kmz — and why so many tools that want plain KML choke on it. This converter unzips the archive in your browser (using the browser's native decompression — no library, no upload), hands you the KML, and lists every bundled file so nothing silently disappears.
How to use KMZ to KML Converter
- 1Open your file (or paste the data) — parsing happens locally in your browser, nothing uploads.
- 2Click Process — formats are detected and validated, with clear errors if something is off.
- 3Review the stats, warnings and preview so you know exactly what the conversion did.
- 4Download the result file, ready for your GPS device, web map or GIS.
Why use KMZ to KML Converter?
- ✓100% free, no sign-up, no file-size upsell games
- ✓Fully client-side: files and coordinates never upload to a server
- ✓Honest errors and warnings instead of silent bad output
- ✓Works offline once the page is loaded
- ✓Implements the documented standard: OGC KML 2.2 specification
Frequently asked questions
What exactly is the difference between KML and KMZ?+
KML is plain XML text describing placemarks, paths and polygons. KMZ is a ZIP archive containing a KML (conventionally doc.kml) plus optional referenced files — custom icons, photos, image overlays. Zipping typically shrinks the text by 70–90%, which is why Google Earth defaults to KMZ for sharing.
Why do some tools fail to open my KMZ?+
They expect XML and receive binary ZIP bytes instead. Tools written against the KML spec alone don't always implement the archive handling. Extracting the doc.kml here gives you the plain-text version every KML-aware tool can read.
Does the conversion lose anything?+
The KML comes out byte-for-byte as it was stored — geometry, styles, descriptions, folders all intact. The only nuance is bundled resources: icons and overlay images are separate files inside the KMZ, offered as individual downloads. A KML referencing files/icon.png needs that relative path preserved.
Is the KMZ uploaded to extract it?+
No — the ZIP central directory is parsed and entries are inflated with the browser's built-in DecompressionStream API, all in local memory. It works offline once the page is loaded.
Embed KMZ to KML Converter on your website
Want KMZ to KML Converteron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/kmz-to-kml" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="KMZ to KML Converter — ToolJolt" loading="lazy"></iframe>Related GIS tools
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