GPX handoff preflight
Did your route make the trip?
Compare the line you planned with the one your app or device exported. Find silent detours before your riders do.
Files stay on this device. Nothing is uploaded.
01 / Add routes
Choose the two GPX files
A
Intended routeThe original line you meant to ride
B
Exported routeThe line from the app or device
metres
50 m is a useful first pass for road and trail handoffs.
02 / Review
- Fidelity
- —samples within threshold
- Largest separation
- —nearest-line distance
- Distance change
- —exported minus intended
- Review zones
- —material divergences
Aligned route trace
Lines are fitted to the same coordinate space. No map tiles or route services are used.
Ride leader’s review
Before you send the route
Geometry, not safety. A close match means the lines are geographically similar. It does not confirm access, surface, traffic, closures, or legal use.
Method
A neutral check between route engines
1
Read locally
GPX tracks or routes are parsed in your browser and never leave your device.
2
Normalize density
Both lines are sampled by distance, so extra track points do not distort the result.
3
Check both ways
Each route is measured against the other to catch detours, shortcuts, and extra loops.