Test your device vibration motor. This feature is only available on mobile devices with vibration support.
Vibration is typically only available on mobile devices.
Vibration is only supported on mobile devices (Android). iOS Safari does not support this API.
Make sure "Do Not Disturb" or "Silent Mode" is not preventing vibration on your device.
Use the custom slider to test different vibration durations from 50ms to 2000ms.
Mobile devices use a vibration motor — a small motor with an off-center weight that creates vibrations when it spins. Newer devices use linear resonant actuators (LRA) or Apple's Taptic Engine, which use electromagnetic forces to create more precise, nuanced vibrations. These can produce quick taps, gentle pulses, or complex patterns, enabling rich haptic feedback for notifications, gaming, and UI interactions.
Haptic feedback has become a crucial part of user experience design. Confirmation haptics provide tactile confirmation for button presses (like iPhone's home button). Notification patterns let users identify alerts without looking at their device. Gaming haptics simulate impacts, engines, and environmental effects. Accessibility — haptic feedback helps visually impaired users interact with touchscreens more effectively.
The Vibration API (navigator.vibrate()) allows web pages to trigger device vibration. It accepts a single duration in milliseconds or an array of alternating vibrate/pause values for patterns. The API only works on mobile devices — desktop computers typically don't have vibration motors. It requires a secure context (HTTPS) and some browsers require user interaction before allowing vibration.
The Vibration API only works on devices with vibration motors — primarily smartphones and some tablets. Desktop computers and most laptops don't have vibration hardware. You'll need to test this feature on a mobile device.
Vibration is supported in Chrome and Firefox on Android. Safari on iOS does NOT support the Vibration API. Despite iPhones having excellent haptic hardware (Taptic Engine), Apple hasn't implemented this web standard in Safari.
Short vibration patterns use minimal battery. However, continuous or very long vibrations do consume power since they run the vibration motor. The preset patterns in this test are brief and won't noticeably affect battery life.