ontrack apps
Small tools for runners.
Free, browser-based tools from ontrack. No account, no install, nothing recorded — they run entirely on your device.
Your footprints
Drop your Garmin or Strava export and watch a decade of your runs draw itself as a living point cloud — parsed and rendered entirely in your browser, nothing uploaded.
Best on desktop. Free for ontrack runners — your code is in the app under Settings → Your footprints.
Live heart rate
Connect a Bluetooth heart rate monitor — a Garmin strap or a watch in broadcast mode — and watch your heart beat live, departure-board style. Nothing is recorded.
Works in Chrome and Edge on desktop and Android.