Vibration Lab

"Vibration Lab" is a web app that lets you fully explore and enjoy your smartphone's vibration feature. From notification-style buzzing to emotional expressions like excitement and laughter, to Pomodoro timer completion alerts, it features 12 different vibration patterns organized into 3 categories: "Notifications," "Emotions," and "Practical." Simply switch between categories using tabs and tap the card you're interested in to feel your device vibrate instantly.

The waveform visualizer at the top of the screen displays the rhythm of the currently playing vibration in real-time as bars. The main appeal is being able to "see" and enjoy vibrations that are normally invisible to the eye. Each pattern shows a strength indicator using dots, making it easy to choose intuitively. You can stop any vibration at any time with the stop button at the bottom for peace of mind. On devices that don't support vibration, such as iPhones or PCs, a guidance banner automatically appears.

It's a lightweight and playful experimental lab that's perfect for killing time or exploring ideas for notification sounds.