TrackSplice TrackSplice
Repair, merge, append, trim and convert GPS activities (FIT, TCX, GPX) in your browser. Files are processed locally and never uploaded.
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Tools
- Merge Combine two FIT, TCX or GPX recordings of one ride field by field: GPS and heart rate from one device, motor and battery from another.
- Repair Fix FIT files with a bad CRC, missing session or activity messages, or timestamps out of order — locally in your browser.
- Trim Cut the car ride to the trailhead or the coffee stop out of a GPX, TCX or FIT activity.
- Convert Convert between FIT, TCX, GPX and CSV without uploading your file anywhere.
- Append Append two or more FIT, TCX or GPX files into a single activity with continuous distance.
- Time shift Move every timestamp of an activity by hours or minutes when the device clock or time zone was wrong.