Free Online GPS File Converter

Convert GPS data files between GPX, FIT (Garmin), IGC (flight logs), GeoJSON, KML, and CSV formats. All conversion is done locally in your browser — no server upload required.

Supported formats

GPX (GPS Exchange), FIT (Garmin), IGC (flight recorder), GeoJSON, KML/KMZ (Google Earth), CSV (comma-separated tracks).

How to use

Select your file, choose the target format, and click convert. The converted file downloads instantly.

GPX format

GPX is the standard XML-based GPS exchange format. Supported by most GPS devices and apps including Garmin, Strava, and AllTrails.

FIT format

FIT is Garmin's binary sport and fitness file format. Stores GPS tracks with heart rate, cadence, power, and other sensor data.

IGC format

IGC is the standard file format for flight recorder data in gliding and paragliding. Stores 3D GPS tracks with pressure altitude.

Privacy

All conversion happens locally using WebAssembly. Your GPS data is never uploaded.

Frequently Asked Questions

Can I convert GPX to CSV?

Yes. The converter extracts waypoints, tracks, and routes from GPX and outputs them as structured CSV with lat/lng, elevation, and timestamp columns.

What is the difference between GPX and FIT?

GPX is an open XML format focused on GPS tracks. FIT is a compressed binary format developed by Garmin that stores additional sport metrics like heart rate and cadence.

How do I convert my Garmin FIT file to GPX?

Upload your .fit file, select GPX as the output format, and convert. The resulting GPX file contains the GPS track with timestamps.

Can I convert IGC flight logs?

Yes. IGC files from flight recorders (LX, Zander, FLARM) can be converted to GPX, GeoJSON, or KML for visualization in Google Earth or GIS software.