📍 Current Position
📊 Performance Metrics
🗺️ Live Map
📋 Activity Log
GPS Test Suite
Choose a test to evaluate your device's GPS performance
Static Accuracy Test
Measure GPS accuracy while stationary for 2-5 minutes
Walking Accuracy Test
Test accuracy while walking at a slow, steady pace
Vehicle Test
High-speed accuracy testing for automotive GPS
Cold Start Test
Measure time to first GPS fix from powered-off state
Signal Recovery Test
Test GPS signal reacquisition after signal loss
Session History
View and export your previous GPS tracking sessions and test results
No sessions yet
Start a live tracking session or run a test to see your history here.
❓ Frequently Asked Questions
Why is my GPS accuracy poor?
GPS accuracy depends on several factors including weather conditions, tall buildings, tree cover, and device hardware. For best results, use the app outdoors with a clear view of the sky. The app uses high-accuracy mode to get the most precise location possible.
What do the accuracy colors mean?
Green (Excellent): ±5 meters or better - ideal for precise tracking
Light Green (Good): ±10 meters - suitable for most applications
Orange (Fair): ±50 meters - acceptable for general location
Red (Poor): >50 meters - may indicate GPS signal issues
How does distance calculation work?
The app uses the Haversine formula to calculate distances between GPS points, which accounts for the Earth's curvature. This provides accurate distance measurements for walking, running, or driving routes.
Can I export my GPS data?
Yes! Click the "Export Data" button to download your GPS tracking session as a JSON file. This includes all position points with timestamps, accuracy measurements, and calculated metrics like total distance.
Why might GPS tracking fail?
Common issues include: browser location permissions denied, poor GPS signal indoors, device GPS disabled, or network connectivity problems. Check your browser's location settings and ensure you're in an area with good GPS reception.
Is my location data stored or shared?
No, this app runs entirely in your browser and does not store or transmit your location data to any servers. All GPS tracking data remains on your device and is cleared when you refresh the page or clear your browser data.
What permissions does this app require?
The app only requires location access permission from your browser to use your device's GPS. You can revoke this permission at any time through your browser settings. No other permissions or personal data are requested.
Can others see my location when using this app?
No, your location data is processed locally on your device. The app does not have any sharing features, user accounts, or network connectivity for location data. Your privacy is completely protected.
Is it safe to use this app in sensitive locations?
Yes, since all data processing happens locally and no location information is transmitted anywhere, you can safely use this app for GPS testing in any location. However, always follow local laws and regulations regarding GPS usage.