Developer Essentials · Free Tool

Vibration Tester

Test your device's vibration motor with preset buzzes and your own custom patterns, using the Web Vibration API. Works on supporting phones; nothing is uploaded.

Support:

Custom pattern (milliseconds, comma-separated: vibrate, pause, vibrate…)

How it works

The Web Vibration API (navigator.vibrate) takes a duration or a pattern of alternating vibrate/pause times in milliseconds. Only devices with a vibration motor — mostly Android phones — will physically buzz; on a desktop the call simply does nothing. Browsers require a user gesture (a tap) to vibrate, which is why every buzz here is behind a button. Nothing leaves your device.