KML Viewer Online

MapGridder displays KML files on an interactive map so you can see placemarks, paths, and tracks right away, then edit or export them. KML is the open XML format used by popular earth and map viewers, and the file is read on your device, never uploaded.

Open the KML viewer

What you can do

  • View KML placemarks, paths, and tracks on the map
  • Inspect coordinates and labels
  • Edit points and routes, then re-export
  • Convert KML to GPX for a GPS device

Frequently asked questions

How do I open a KML file online?

Open the map, then use the Import button in the route panel (or the File menu) to pick your KML file. Placemarks and paths appear on the map immediately.

Is the KML viewer free?

Yes. Viewing needs no login or install, and the file is never uploaded to a server. A quick, free sign-in is only needed if you export.

Can I edit the KML after viewing it?

Yes. You can move points, draw routes, and then export GPX or KML.

What is the file size limit?

KML imports up to 5 MB.

What is the difference between KML and GPX?

Both are open XML formats for geographic data. KML is used mainly by earth and map viewers and carries rich styling and placemarks, while GPX is the common format for GPS devices and apps, focused on waypoints, routes, and tracks. If your device or app needs GPX, convert your KML with the KML to GPX converter.

Related: GPX and KML guide · Convert KML to GPX · GPX editor