Overview
GPX Converter is a free, privacy‑focused web application that lets you convert, merge, split, view, and visualize GPS track files—all processed directly in your browser. No files are ever uploaded to a server, ensuring your training data stays completely private.
Supported Formats
- FIT – Garmin’s proprietary format for activity, course, and weight data
- GPX – The universal GPS exchange format
- TCX – Training Center XML (Connect IQ / Garmin Connect)
- KML/KMZ – Google Earth formats
- GeoJSON – Open‑source geospatial format
- Google Timeline exports – Rescue legacy Google Location History files
Core Features
- Instant conversion between any of the supported formats
- Merge multiple GPX or FIT tracks into a single activity
- Split long recordings into separate segments
- Repair corrupted or incomplete FIT files
- View tracks in dedicated GPX and FIT viewers
- Create track posters – turn any route into a shareable visual
- Generate GPS heatmaps – color‑coded elevation or speed overlays
Who It’s For
- Cyclists and runners syncing data between platforms
- Hikers and adventurers archiving offline maps
- Coaches analyzing training loads
- Anyone who values privacy and wants zero‑upload, zero‑account convenience
Technical Highlights
- Runs entirely client‑side via WebAssembly and JavaScript
- Supports drag‑and‑drop with automatic format detection
- Handles large files without bandwidth constraints
- Fully responsive design for desktop and mobile
