Free Fitness & GPS Files tools
Diagnose FIT, TCX, and GPX activity files privately in your browser.
What belongs in Fitness & GPS Files?
Activity-file tools should explain exactly why an import failed instead of leaving a cryptic error, without ever altering the original recording.
fit file diagnosticgpx file checkertcx file problemswhy does my fit file fail to importgps activity file error
Typical reasons people use these tools
- Find out why a GPS watch export won't import into training software
- Spot GPS jumps or missing points before sharing an activity
- Check a FIT file's checksum without special desktop software
Available now
Each task gets its own page where useful, so searchers can land directly on the exact converter or tool they need.
FIT/TCX/GPX Activity Diagnostic ToolFind out why a FIT, TCX, or GPX activity file fails to import — missing points, bad timestamps, GPS jumps, and checksum errors — privately in your browser.
FIT/TCX/GPX Activity Repair ToolRepair FIT, TCX, and GPX activity files — remove GPS jumps, interpolate missing timestamps, fix broken points — and download a clean GPX file, privately in your browser.
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