View FIT files in your browser
The file watches, bike computers and training apps record workouts in. Open a FIT right here, its route on a map and its heart rate, pace and power charted under it. The file never leaves your device.
Or drop it anywhere on this page
What you'll see
Your workout opens on a map, its route drawn over OpenStreetMap's streets and its chart under it.
- Its route on the map • Hover the chart to see where
- Elevation, speed, heart rate, cadence and power
- Show details • Time, distance, climb and calories
- Export • GPX, KML, GeoJSON and CSV
About FIT
FIT came from Dynastream, the makers of ANT+, which Garmin owns, as a compact way for small devices to record activities. Garmin, Wahoo, Coros, Suunto, Polar, Hammerhead and Zwift save workouts in it, and Strava, TrainingPeaks and Garmin Connect take it.
A FIT is binary: definition messages lay out the data messages after them, a record every second or so with the place, height, distance, speed, heart rate, cadence, power and temperature, then laps and a session with the totals the device worked out.
Filepeek reads it in your browser with its own reader and draws the route over OpenStreetMap, with a chart under it of elevation, speed, heart rate, cadence, power or temperature. Hover the chart to see where each moment was, Show details gives the sport, time, distance, climb and calories, and Export saves the route as GPX, KML, GeoJSON or CSV.
Flexible and Interoperable Data Transfer
.fit
Format
- MIME type
- application/vnd.ant.fit
- Made by
- Garmin, first Dynastream
Inside the file
- Holds
- Records, laps and a session
- Each record
- Place, heart rate, cadence and power
- Totals
- As the device worked them out
- Built on
- Binary messages
Opens in every browser
Filepeek opens FIT workouts in Chrome, Edge, Firefox and Safari. On their own, browsers download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open FIT
- WindowsGarmin Connect and Strava on the web • GoldenCheetah
- MacGarmin Connect and Strava on the web • GoldenCheetah
- iPhone and iPadStrava and Garmin Connect import it
- AndroidStrava and Garmin Connect import it
Questions
How do I open a FIT file?
Drop it on this page or choose Peek a FIT. The workout opens on a map with its chart under it.
Where do I find my FIT files?
On a Garmin plugged into a computer, they're in the GARMIN/Activity folder. Garmin Connect and Strava can also export a workout's original file.
Why is there no route, only a chart?
A workout on a treadmill or an indoor trainer records no places, so there's no route to draw, and its chart runs by time instead.
Can I convert FIT to GPX?
Yes. Open it, choose Export, then Save the features as GPX, the route with its heights.
Is a .fit file always a workout?
No. Telescope pictures are saved as .fit too, as FITS files. Filepeek tells them apart by what is inside and opens each in its own viewer.