Device Diagnostics — Test Your Phone Hardware
Run free browser-based diagnostics on your phone or computer. Every test runs entirely in your browser — no uploads, no installs, no data leaves your device.
Available Tests
Screen Test
Check for dead pixels and stuck pixels.
Touch Screen Test
Detect dead zones and accuracy.
Camera Test
Verify camera, resolution, and permissions.
Microphone Test
Check mic input levels and permissions.
Speaker Test
Test audio output and channel balance.
Vibration Test
Verify haptic feedback works.
Flashlight Test
Check torch/flashlight support.
Battery Test
Read battery level, charging state, and health.
Network Test
Check connection type, speed, and quality.
GPS Test
Verify location services and accuracy.
Motion Sensor Test
Check accelerometer, gyroscope, and orientation.
How it works
Each test uses standard browser APIs (Web Audio, MediaDevices, Geolocation, DeviceMotion, Battery Status, etc.) to read real hardware data. The tests do not install anything and do not send data to any server. Your results stay on your device.
Run all tests
Want to test everything at once? The health suite runs all supported tests and produces a combined report.