100% local — files never leave your device
Convert KMZ to NDJSON
Turn KMZ (zipped KML) into GeoJSON Lines (NDJSON) instantly in your browser. No upload, no account, and no file ever crosses the network.
About KMZ (zipped KML)
Compressed KML. Smaller files for email and Google Earth.
- KMZ is always written in EPSG:4326, as required by the specification.
About GeoJSON Lines (NDJSON)
One GeoJSON feature per line. Streams well into BigQuery, DuckDB and Athena.
Step by step
How to convert KMZ to NDJSON
- 01
Drop your .kmz file
Open the converter and drop the KMZ (zipped KML) file — parsing happens locally in a Web Worker, so nothing is uploaded.
- 02
Choose NDJSON as the output
Pick NDJSON, reproject to any of 180+ coordinate systems if needed, trim attributes and preview the geometry on a map.
- 03
Download the .ndjson file
Save a single file, or convert a whole batch and download everything as a ZIP. Nothing is stored after the download.
KMZ to NDJSON — questions
Is converting KMZ to NDJSON really private?
Yes. The conversion runs entirely in your browser using a Web Worker — the KMZ (zipped KML) file is never sent to a server, so it works with confidential data and offline.
Do I need an account to convert KMZ to NDJSON?
No. There is no signup, no email and no install. Open the converter, drop the file and download the result.
What happens to attributes and coordinate systems?
Attributes are carried across into the GeoJSON Lines (NDJSON) output. You can also reproject between 180+ coordinate reference systems or add a custom proj4 definition before writing.
Need the other direction? Convert NDJSON to KMZ