Touch Screen Test
Test your touchscreen — visualize every touch point and draw to find dead or unresponsive spots.
Touch and drag inside the area — each finger shows a ring and leaves a trail, so you can find spots that don't respond. On a mouse, click and drag to draw.
Examples
Find a dead zone
Input
Drag across the whole screen
Output
Gaps in the trail = unresponsive areas
Check multi-touch
Input
Place 5 fingers down
Output
Max simultaneous shows 5
Test a stylus
Input
Draw with the pen
Output
Trail follows the tip
About this tool
This free online touch screen test checks that every part of your display responds to touch. Drag your finger across the test area to leave a trail and reveal dead or unresponsive zones, and place several fingers down to verify multi-touch. It runs entirely in your browser — nothing is installed or uploaded.
How to use
- Open this page on the touchscreen you want to test.
- Drag a finger across the whole area in a grid pattern.
- Watch for gaps in the trail — those are dead spots.
- Place multiple fingers to check the max touch points.
Common uses
Checking a phone or tablet screen after a drop or repair, testing a second-hand device before buying, confirming multi-touch support, or verifying stylus tracking. Works on phones, tablets, and touchscreen laptops; a mouse or trackpad can draw single-pointer trails too.
Frequently asked questions
How do I test my touchscreen?
Open this page on the device you want to test and drag your finger all over the test area. Each touch shows a ring and leaves a trail, so any spot where the trail breaks or nothing appears is an unresponsive area of the digitizer.
How do I check multi-touch?
Place several fingers on the screen at once. Each finger gets its own ring, and the 'max simultaneous' counter records the highest number of touches detected — a quick way to confirm your screen supports the multi-touch you expect (often 5 or 10 points).
How do I find a dead touch zone?
Slowly drag across the whole screen in a grid pattern. The trail dots build up a picture of where the screen responds. Gaps in the trail mark dead or unresponsive areas of the touchscreen.
Does it work on a laptop trackpad or with a mouse?
Yes. The test uses pointer events, so a mouse or trackpad works too — click and drag to draw. For true multi-touch, use a phone, tablet, or touchscreen laptop.
Why doesn't the page scroll while I test?
Scrolling and pinch-zoom are disabled inside the test area so your touches are captured cleanly instead of moving the page. Scrolling works normally everywhere else.
Can it test stylus or pen input?
Yes. Pen and stylus input come through the same pointer events, so you can draw with a stylus to check pen tracking across the screen.
Is anything uploaded?
No. The test runs entirely in your browser. Nothing you draw or touch is stored or sent anywhere.
Learn more
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