Trim Car Rides, Merge & Repair .FIT and .GPX Activity Files
Forgot to stop your watch and drove home? Cut unwanted car segments directly on the interactive map. 100% private in-browser tool.
How to Use All-in-One Studio in 3 Simple Steps
Step 1: Upload
Drag & drop your .FIT, .GPX, or .TCX activity file. All processing is 100% private in your browser.
Step 2: Process
FitCrop inspects telemetry streams, removes anomalies, recalibrates metrics, or fixes binary checksums.
Step 3: Export
Download your clean Strava, Garmin, and Zwift compatible file with 1 click. Zero server wait.
Frequently Asked Questions
How do I remove an accidental car ride from my Strava activity?
Export your .FIT or .GPX file from Strava or Garmin Connect, load it into FitCrop.xyz. Our automatic speed sensor detects the highway acceleration, allowing you to crop the end of your workout on the interactive map with 1 click.
Why does Strava give error: The upload appears to be malformed?
This occurs when a Garmin device shuts down before closing the file header or writing the trailing CRC-16 checksum. FitCrop.xyz automatically fixes the 14-byte header and resynchronizes the checksum.
Is my workout data uploaded to any server?
No. FitCrop.xyz executes entirely inside your client browser using WebAssembly and JavaScript. Zero GPS coordinates or biometric heart rate metrics leave your computer.