WaySlice is a local-first analyzer for GPX, FIT, TCX, KML and KMZ activity tracks: slice out any sector on the map or elevation profile and read its metrics — 3D distance, elevation gain/loss, grades, pace, speed, GAP, VAM/VDM, heart rate, cadence, power and temperature — then export the sector as GPX, csv, txt or md. Everything runs in your browser; nothing is uploaded. Enable JavaScript to use it.
Select the data to analyze
Not enough valid data for dual-variable analysis.
Analyzing…
