We spend most of our time turning GPS data into art, which means we spend just as much time staring at broken files: a watch that lost signal in a tunnel, an elevation reading that thinks your flat tempo run gained 400 meters, a FIT file that won't open anywhere. That's data from a real effort, not a rounding error, and it deserves better than being unusable.
So we built the tools we kept needing ourselves, and made them free. Nothing you upload here is ever stored, and nothing leaves your browser unless a tool explicitly says otherwise.
Convert between .gpx, .tcx and .fit formats instantly, right in your browser.
Open tool →Trim the start and end of a route, just like trimming a video, with a live map preview.
Open tool →Combine multiple GPX, TCX or FIT files into one continuous activity.
Open tool →Shrink an oversized GPS file by removing redundant points, route stays the same.
Open tool →Distance, elevation, duration and sensor averages from any GPS file, instantly.
Open tool →Replace noisy GPS or barometric altitude with accurate ground elevation.
Open tool →Fix broken Garmin FIT files that fail to upload to Strava.
Coming soonTurn your routes into framed wall art. Our full map editor, free to try.
Open editor →Click any spot on the map to redact it, wherever it falls in your route.
Open tool →