TheBrowserBox
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Device & Browser Tests

Touchscreen Tester

Draw touch and pen traces and inspect simultaneous pointer contacts locally.

Your content stays on your device Free, with no account
Touchscreen TesterLocal test · no uploads

Test controls

Ready. Start explicitly to begin.

Start, then draw inside the canvas with your fingers or pen. Mouse drawing is a demonstration, labelled separately. Scrolling outside this area remains available. Fullscreen expands the canvas; Start, Stop, Reset and Exit remain available.

What this test can show

Pointer Events are used for touch, pen and a clearly labelled mouse demonstration. Contact dimensions and pressure are reported only when provided by the browser; they are not calibrated measurements. Up to 20 simultaneous contacts and 5,000 drawn path segments are retained per session. Pointer cancellation and loss of focus release contacts. This does not certify every sensor location or the hardware maximum.

Test preview

—Status
—Observation
—Details

    Reports contain the observations currently shown, not an automatic hardware health verdict. No report is uploaded or saved automatically.

    A FEW SIMPLE STEPS

    How to use Touchscreen Tester

    1. Review the controls and choose Start.
    2. Start, then draw inside the canvas with your fingers or pen. Mouse drawing is a demonstration, labelled separately. Scrolling outside this area remains available. Fullscreen expands the canvas; Start, Stop, Reset and Exit remain available.
    3. Review the live observations. Stop and Reset are available for active tests; fullscreen remains optional.
    4. Download a report if wanted. Hidden tabs, switching or page exit stop active capture or playback.
    PRIVATE BY DESIGN

    Why use this tool?

    These tools run locally and do not upload your device observations, camera video, microphone input or interaction events. There are no accounts or stored test histories. Camera and microphone access stays under browser permission controls.

    Tool inputs stay in your browser. Only your theme preference is saved on this device.

    A few things worth knowing

    What does this test measure?

    Pointer Events are used for touch, pen and a clearly labelled mouse demonstration. Contact dimensions and pressure are reported only when provided by the browser; they are not calibrated measurements. Up to 20 simultaneous contacts and 5,000 drawn path segments are retained per session. Pointer cancellation and loss of focus release contacts. This does not certify every sensor location or the hardware maximum.

    Can the website certify my hardware is working?

    No. The browser exposes a limited set of events and reported settings. Inspect or listen to the actual result and compare with other applications if needed. Missing browser events or unavailable features do not prove a hardware failure.

    What happens when I stop or leave?

    Active input capture, audio playback and camera/microphone tracks are released on Stop, hidden tab, workspace switching and page exit. Pending permission results are ignored and late tracks stopped. Reports download only when explicitly chosen.

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