# 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. ### 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. --- *Source: [ocxly.com/vibration-tester.html](https://ocxly.com/vibration-tester.html) — OCXLY, free 100% client-side privacy-first tools. Free vibration tester. Test your device's vibration motor with preset buzzes and custom patterns using the Web Vibration API. Works on supporting phones, entirely in your browser.*