KML to GPX Converter
Processing entirely on your device — large files may take a moment.
Keyhole Markup Language and GPS Exchange Format exist for different jobs: KML is Google Earth’s XML markup for places, paths and polygons — still the lingua franca of consumer map sharing. Convert GPX to GeoJSON/CSV to plot runs and rides in mapping tools or spreadsheets.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How KML compares to GPX
| KML | GPX | |
|---|---|---|
| Structure | XML placemarks & folders | Waypoints, routes, tracks |
| Types / schema | Points, lines, polygons, styles | lat/lon/ele/time points |
| Compatibility | Google Earth, Maps, agencies | Watches, phones, bike computers |
| Best for | Sharing annotated places | Recorded movement data |
How to convert KML to GPX
- 1
Select your files
Drag & drop your KML files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to GPX". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted GPX file individually, or grab everything at once as a ZIP archive.
About the KML format
KML (Keyhole Markup Language) started life as Google Earth’s file format and became an OGC standard. It describes placemarks, paths, polygons and even camera tours, with rich styling — which is also why it is heavier and harder to parse than GeoJSON.
Most KML files in the wild come from Google Earth exports and government portals. Converting them to GeoJSON puts the same places into any web map without a Google Earth dependency.
+ Strengths
- ✓Rich styling, tours and descriptions
- ✓Google Earth and Maps read it natively
- ✓OGC standard, widely published by agencies
! Limitations
- −Verbose XML, hard to hand-edit
- −Web map libraries need conversion first
About the GPX format
GPX is the GPS exchange format: an XML file with waypoints, routes and — most importantly — <trk> tracks of timestamped coordinates. Every sports watch, phone app and bike computer exports it, which makes it the common denominator of “where have I been” data.
Converting GPX to GeoJSON puts the track on an interactive map; converting to CSV turns it into rows you can pivot, chart or join with sensor data.
+ Strengths
- ✓Universal across GPS devices and apps
- ✓Timestamps enable pace and speed analysis
- ✓Simple XML, easy to post-process
! Limitations
- −No styling or basemap context
- −Large tracks make big files
Why convert KML to GPX?
Converting makes sense where the strengths of GPX meet what KML cannot give you. Universal across GPS devices and apps Meanwhile Verbose XML, hard to hand-edit One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this KML to GPX converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for KML to GPX?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Are formulas, styles or multiple sheets converted?
No — this conversion extracts the data itself into GPX. Formulas are exported as their current values, styling is not carried over, and multi-sheet workbooks convert sheet by sheet. For full fidelity between spreadsheet formats, exchange within the same tool family.
How large can my KML file be?
Since everything runs locally in your browser, the real limit is your device memory rather than an upload cap. Files up to a few hundred megabytes are usually fine on a modern computer; extremely large ones simply take longer.