About This Tool
Activity Deep Dive replaces 7 separate converter and analyzer pages. Upload a FIT, TCX, or GPX file to get a complete picture of your workout — from elevation gain to HR zone distribution — and export to any supported format.
Supported formats
FIT (Garmin, Suunto, Wahoo), TCX (Garmin, Polar), GPX (universal GPS standard). Export to GPX, TCX, or CSV for analysis in other tools. All processing happens in your browser — your data never leaves your device.