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Touch Screen Test

Trace across a fullscreen grid to check touch coverage and unresponsive areas.

This tool runs in your browser.
This test runs locally in your browser. Device input is not uploaded.
Touches0
Maximum0
Covered cells0%

How to use

  1. 01Open the test and read the local-only notice.
  2. 02Start the test, then interact with the device while watching the live result.
  3. 03Stop the test or close the page to release any active device access.

FAQ

Does Touch Screen Test upload device data?

No. Processing stays in your browser and no captured media or device events are uploaded.

Why can results differ from hardware specifications?

Browsers, operating systems, permissions, power saving, and event scheduling can affect measurements.

Touch Screen Test: Why does this test need browser permission?

Camera, microphone, motion, and similar tests require an explicit browser permission before the page can read that device. Denying permission keeps the device unavailable to the test.