A GPS test is a diagnostic tool that reports your device's current location, accuracy, speed, altitude, and heading using the Geolocation API. It helps verify that GPS hardware and location services are working correctly.

Is this GPS test free?

Yes, the GPS test is completely free to use. No downloads, no sign-up required.

Does this GPS test work on all devices?

It works on any modern browser that supports the Geolocation API, including Chrome, Edge, Safari, and Firefox on both mobile and desktop. GPS accuracy depends on your device's hardware and environment.

Why is my GPS accuracy low?

GPS accuracy depends on satellite signal strength, which can be affected by buildings, trees, weather, and indoor use. For best results, go outdoors with a clear view of the sky.

📍 Real‑Time Location

GPS Test — Check GPS Signal & Accuracy

Monitor your device's GPS coordinates, accuracy, speed, altitude, and heading in real time. Free, instant, no installation — perfect for testing GPS reception and location services.

Map will appear when location is acquired

Latitude

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Longitude

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🎯 Accuracy

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🏔️ Altitude

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🚀 Speed

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🧭 Heading

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Signal Accuracy Waiting…

📊 Accuracy History (last 20 readings)

📋 Waiting for GPS data…

ℹ️ Tip: For best GPS accuracy, go outdoors with a clear view of the sky. GPS signal is weaker indoors, in vehicles, or near tall buildings.

Precise Coordinates

Get real‑time latitude and longitude from your device's GPS, Wi‑Fi, or cellular positioning.

Live Monitoring

Watch your position update continuously with our high‑frequency tracking mode.

Speed & Altitude

See your current speed and altitude when the device provides these values.

Accuracy Meter

Visual bar and history chart show how accurate your GPS signal is right now.

Interactive Map

See your location on an embedded OpenStreetMap that updates as you move.

Detailed Log

See a timestamped log of all GPS readings, including accuracy changes and errors.

Guide

How the GPS Test Works

Request Location Permission

When you click Start GPS, your browser asks for permission to access your location. Grant it to proceed.

Read GPS Data

The tool uses the navigator.geolocation API to get latitude, longitude, accuracy, altitude, speed, and heading.

Visualize & Monitor

Coordinates, accuracy, and a map update in real time. Use Live Monitor to keep tracking as you move.

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Pro Tip: Test GPS accuracy outdoors first. Indoor GPS relies on Wi‑Fi triangulation and is usually much less accurate than open‑sky satellite reception.