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