Reduce point count using the Douglas–Peucker algorithm while keeping the route shape. Processing happens locally.
GPS devices and apps often record one point per second, producing files with thousands of coordinates. Many route-planning and mapping tools struggle with files this large — uploads take longer, maps render slowly, and some apps refuse to import tracks with more than a few thousand points.
Simplifying removes redundant points while preserving the shape of your route. A typical trail recording can be reduced by 60–80% with no visible difference on the map. The result is a smaller file that loads instantly in any GPX-compatible app.
This tool uses the Ramer-Douglas-Peucker algorithm, the industry standard for polyline simplification. It works by finding the point farthest from a line between two endpoints; if that distance exceeds a tolerance threshold, the point is kept and the process recurses on both sides. Points within the tolerance are removed. A higher tolerance means fewer points and a smaller file; a lower tolerance keeps more detail.
Your GPX file stays in your browser. Nothing is uploaded.