FIT File Viewer & Analyzer
Upload your .fit file to instantly view heart rate, power, cadence, elevation, and GPS data with interactive charts. Works with files from Garmin, Wahoo, Suunto, and all ANT+ devices.
Drag & drop your FIT files here
or click to browse — max 50 MB
How to View FIT Files Online
- Drag and drop your .FIT file onto the upload area above, or click to browse
- Your file is parsed instantly in your browser — no data leaves your device
- Explore interactive charts for heart rate, power, cadence, and elevation
- Browse the full data table with pagination and search
- View lap summaries and session statistics
FAQ
What is a FIT file and how do I open it?
FIT (Flexible and Interoperable Data Transfer) is a file format created by Garmin for storing activity data from GPS devices and fitness trackers. Upload your .fit file to this viewer to open it instantly in your browser — no software installation needed.
Which devices export FIT files?
Most Garmin watches and bike computers (Forerunner, Fenix, Edge), Wahoo ELEMNT bike computers, Suunto watches, Hammerhead Karoo, and many other ANT+/Bluetooth-enabled fitness devices save activities in FIT format.
Is my data safe when I use this FIT file viewer?
Yes. Your FIT file is processed entirely in your browser using JavaScript. No data is uploaded to any server. You can verify this by using the tool with your internet disconnected after the page loads.
What data can I see in a FIT file?
Depending on your device and sensors, FIT files can contain heart rate, power, cadence, speed, GPS coordinates, elevation, temperature, lap splits, and device information. This viewer displays all available data channels with interactive charts.