Device Test Hub- Home
- Touch Screen Test
Touch Screen Test
Draw in the box below with your fingers. Breaks in the lines show areas that respond poorly.
How to use
- Slowly trace across the box, edge to edge, both ways
- Look for gaps or jumps in the lines
- Add fingers one at a time and read "Max simultaneous"
If it does not work
- Lifted screen protectors, dirt or moisture can reduce response
- Screen edges may trigger OS gestures (back, notifications) first
- The reported number is what the device tells the browser and may differ from what actually works
FAQ
Can I try it with a mouse?
You can draw, but checking touch needs a touch screen or a pen.
Pen pressure does not show
It appears only when drawing with a pen (stylus). Fingers do not report pressure.
Other tests
📷 Webcam TestCheck picture, resolution and frame rate🎙️ Microphone TestLevel meter, clipping, record and play back🔊 Speaker & Headphone L/R TestLeft/right, phase and frequency sweep⌨️ Keyboard TestJIS, US, UK, DE, FR layouts, rollover, chatter🖱️ Mouse TestButtons, wheel, double-click, polling rate🎮 Gamepad TesterButtons, sticks, drift and vibration🎹 MIDI Keyboard TestNotes, velocity and CC monitor🟥 Dead Pixel TestFull-screen colors to spot bad pixels⏱️ Refresh Rate TestDisplay Hz, late frames and motion