Observed arrival · 2026-09-09
Switchback Keeps Fitness Files on Your Device
A browser-based converter and editor for FIT, GPX, and TCX activity files, including Garmin and Strava exports.
Field notes
Switchback organizes its functionality as a collection of focused converters and FIT editors rather than a single general-purpose upload form. The listed inputs include Garmin FIT, compressed FIT.GZ, GPX, TCX, and Strava bulk-export ZIP files; outputs include formats such as JSON, CSV, KML, and FIT. Editing operations cover timestamp repair, track merging, sensor-field copying or removal, power adjustments, elevation changes, and sport or device metadata. The page states that files remain on the user’s device.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue