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What this format is
A FIT file is a stream of records. One bad byte usually makes other converters refuse the whole activity. Repair reads past the damage and keeps every valid point.
How to get the file
- From Garmin Connect
- 1. Export original from Garmin Connect if the activity still opens there.
- 2. If Connect itself will not open it, drop the file here anyway — this page is for that case.
- From Strava
- 1. If a file from a bulk export fails on the Strava export page, drop that single .fit here.
What is kept and what is lost
| Kept | Lost or missing |
|---|---|
| Every record that still decodes: GPS, HR, cadence, power | The damaged stretch, and anything after a truncated file if the stream ends |