LuabifyQuick device diagnostics

Touch Test

Click Tap and drag to validate single and multi-touch gestures on your screen.

Live multi-touch
Press Esc to exit.

Touch log

  • Waiting for touch input...--

Why run a touch test

A touch test confirms that taps, drags, and multi‑touch inputs are detected across the entire screen before work or creative tasks. It is a quick way to spot dead zones, lag, or inconsistent sensitivity without installing software.

How the test runs

The tool runs in your browser and listens for touch events as you tap, drag, or pinch. Each contact point is drawn on screen in real time, and the test stops when you leave the page.

How to interpret results

Touch points should appear exactly where you tap or drag. Gaps in the trail can indicate dead zones, and delayed points may suggest lag or sensitivity issues. Use multiple fingers to confirm how many points the device reports.

  • Missing points indicate touches that did not register.
  • Gaps in lines suggest dead zones or tracking errors.
  • Inconsistent points can point to sensitivity or calibration settings.

This test reports browser‑level touch input only and does not calibrate the screen or measure pressure on all devices.

Frequently Asked Questions

What is this touch screen test used for?

This touch screen test verifies that taps, drags, and multi-touch inputs are detected across the display. It helps you identify dead zones, lag, or inconsistent response.

How does the touch test work in the browser?

The test listens for touch events and draws points as you tap, drag, or pinch. It runs directly in the browser with no install.

How do I check for dead zones with the touch test?

Drag your finger across the entire screen and look for gaps in the trace. Missing segments can indicate areas that are not registering.

Does the touch test support multi-touch?

Yes, you can place multiple fingers to see each touch point. The number of supported points depends on your device.

Why is touch not registering accurately?

Screen protectors, dirt, moisture, or OS settings can reduce sensitivity. Clean the screen, adjust settings, and try another browser if needed.

Does the touch test work on iPhone, iPad, and Android?

Yes, it works on most modern mobile browsers. Touch handling can vary slightly by device and browser.

Does the touch test work on Windows or ChromeOS touchscreens?

Yes, it works on touch-enabled laptops and desktops in supported browsers. Some devices may limit multi-touch reporting.

Is the touch test safe and private?

The test runs locally and does not access your files. Touch data is not stored or uploaded.

Can the touch test calibrate my screen?

No, it only reports touch input. Calibration must be done in your device settings.

Why do touch test results differ from other apps?

Apps use different sampling rates and gesture handling. Browser differences can also affect how touches are reported.

Can a screen protector affect the touch test?

Yes, thick or damaged protectors can reduce sensitivity and accuracy. Remove or replace the protector to compare results.

What can the touch test not do?

It cannot fix hardware issues or measure pressure sensitivity on all devices. It only shows what the browser reports.
Touch Test | Multi-touch & Gesture Check | Luabify