devicecheckers
Runs in your browser. Nothing is uploaded.

Vibration Test

Play a pattern on the vibration motor. Phones that expose it will buzz. Most laptops will not.

Checking whether this device can vibrate.

More tests

Touch Test Draw with one or more fingers and look for dead zones. Sensor Test Read orientation, motion, and compass heading when the device has them. Controller test Drift and deadzone

What it measures

Patterns

Short, long, double, heartbeat, SOS, and a ramp.

Custom

Your own list of on and off times, in milliseconds.

Questions

Why is the button dead on my laptop?
Most desktop browsers have no vibration motor. Phones and some tablets expose it. iOS Safari usually does not.

Can I stop a long pattern?
Yes. Stop cancels whatever is running.