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 →Correct GPS drift by snapping your route onto the road, without losing off-road sections.
Open tool →Fix broken Garmin FIT files that fail to upload to Strava.
Coming soonFind your fastest 1K, 5K, 10K or marathon-length stretch within any longer activity.
Open tool →Pull out every real climb in a ride or run, with length, grade and a rough HC/Cat rating.
Open tool →Draw a gradient-colored elevation chart from any activity and download it as a PNG.
Open tool →Detects loops, out-and-backs and one-way routes, then lets you download just one leg.
Open tool →Log in, filter and sort your Strava activities, then download any of them as GPX, TCX or FIT.
Open tool →Turn 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 →