Free · Private · Browser-based
Test Your Device.
Know What's Working.
Free browser-based diagnostics for your phone, tablet, or computer. Test your screen, camera, microphone, speakers, sensors, and more — all locally, with nothing leaving your device.
Popular Tests
The most common diagnostics. Each runs entirely in your browser.
Touch Screen
Check touch accuracy, dead zones, and ghost touch.
Camera
Test front and rear cameras with live snapshots.
Microphone
Analyze audio input levels and waveform.
Speaker
Play test tones across left and right channels.
GPS & Location
Verify location accuracy and GPS lock.
Motion Sensors
Test accelerometer and gyroscope readings.
All Device Tests
Check individual components or run a complete device health check. 10 browser-based diagnostics available.
Device Health
Run supported diagnostic tests and see an overall health view with weighted scores.
How It Works
Choose a test
Pick a specific component to test or run a full diagnostic.
Allow browser permission
Your browser will ask for access to the camera, microphone, or sensors.
Review your results
See a clear pass, warning, or fail result with details.
Your Device. Your Data.
DeviceTestHub runs entirely in your browser. No accounts. No analytics tracking. When a test requests camera, microphone, or location access, your browser handles the permission — DeviceTestHub does not receive or transmit that data.
Who Is It For?
Checking a used device
Verify that a phone or laptop works before buying or selling it.
Troubleshooting problems
Figure out which component might be causing an issue.
Post-repair verification
Confirm that a repaired part is functioning correctly.
Routine device check
Run a quick health check on your own device.
Ready to check your device?
Run a free diagnostic in your browser. No installation needed.