free · in-browser · no upload
Drop your KML file. We'll convert it to GPX right here in your browser, your file never leaves your device.
Select your file here to get started
or drop your file here.
Accepts .kml
How it works
Click the dropzone above or drag a KML from your desktop. Files of any size, there's no upload, so there's no upload limit.
The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.
Get your GPX the moment the conversion finishes. Convert another, or close the tab.
Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.
Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.
No account required. No watermark on the output. No queue. Drop a file, get a converted file.
Why convert KML → GPX
Google Earth and Google My Maps export KML; every fitness device (Garmin, Wahoo, Apple Watch via apps) imports GPX. Outdoor enthusiasts plan routes in Google Earth then need them in GPX to load onto their bike computer or hiking GPS. Converting in your browser keeps your route data private (nothing uploaded to a route-sharing service that might re-publish it).
You traced a 60km bike route in Google My Maps. You export as KML. You want it loaded onto your Garmin Edge for turn-by-turn navigation. Drop the KML, download the GPX, transfer to the Garmin via USB or Garmin Connect.
My polygons disappeared after KML → GPX.
GPX has no polygon type — it only supports waypoints (points), tracks (recorded paths), and routes (planned paths). Our converter degrades polygons to closed tracks (the outer boundary becomes a track). For true polygon support, convert to GeoJSON instead.
Elevations are wrong after import to my GPS device.
KML elevation values are in meters above sea level by default; some apps export feet. Our converter assumes meters per the KML spec. If your source app exported feet, you'll see ~3.3x off elevation. Multiply elevations by 0.3048 in your source data first.
Formats involved
KML is Google Earth's XML format for geographic data, points, lines, polygons, with optional descriptions and styles. Originally Keyhole Inc.'s format (Google acquired Keyhole and created Google Earth from it). Standardized as OGC KML in 2008.
How to open
Google Earth (free), Google My Maps, QGIS, ArcGIS. Plain XML in any editor.
GPX is the de-facto interchange format for GPS data — waypoints (single locations), tracks (recorded routes you walked/biked/drove), and routes (planned paths). XML-based, version 1.1 (2004) is current. Every GPS device, fitness app (Strava, Garmin Connect, Komoot), and mapping tool reads/writes GPX. Cyclists, hikers, and pilots use it to share routes and analyze trips.
How to open
Garmin BaseCamp, Strava (drag-drop upload), Komoot, Google Earth, Gaia GPS, every GPS unit's companion software. Online viewers like gpx.studio render tracks on a map without download.
Related tools
FAQ
Yes. No signup, no watermark, no daily file count limit. Every conversion runs in your browser, your file never touches our servers because there are no servers.
Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.
Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.
Geographic visualization in Google Earth and GIS tools. GPS track and waypoint exchange between devices and apps. The most common reason to convert is compatibility, GPX works in places where KML doesn't, or vice versa.
Google Earth (free), Google My Maps, QGIS, ArcGIS. Plain XML in any editor.
Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.
Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.
