How to Simplify a GPS Track Without Losing Its Shape

A GPX file recorded by a GPS device can log a point every second: thousands of points for a multi-hour outing. That level of detail is rarely necessary, and an oversized file can slow down some apps or exceed the import limits of certain devices.

How simplification works

Our tool uses the Ramer-Douglas-Peucker algorithm, a standard method that drops the points least significant to the track's shape, keeping only those that actually define its geometry. The higher the tolerance you choose, the bigger the reduction (at the cost of slightly lower fidelity to the original track).

Simplifying a track

Use our free GPX Simplify tool: drop your file, adjust the tolerance, and the tool shows the point count before/after along with the reduction rate, staying honest about what you're trading away by simplifying.

Processing happens entirely in your browser; your GPS track never leaves your device.