Online diagnostic tool

Mouse, Trackpad & Touch Tester

Test mouse buttons, wheel scrolling, double-clicks, pointer movement, dragging and touch gestures—including iPhone and iPad-friendly controls.

Last actionMove, click or touch

Total clicks0

Double clicks0

Wheel movement0

Pointer position—

Drag distance0 px

LeftMiddleRightBackForward

Move, click, drag or scroll hereOn iPhone or iPad: tap for left click, double-tap for double click, long-press for right click, and swipe vertically for wheel testing.

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Direct answer

What does this mouse tester check?

It checks left, right, middle, back and forward buttons, scroll-wheel direction, pointer movement, dragging and double-click behavior. Touch alternatives are included for iPhone and iPad users.

✓ No installation✓ Works in compatible browsers✓ Privacy-focused testing

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Dead Pixel TestInspect solid colors for dead, stuck, bright or dark pixels. Touch Screen TestCheck touch coverage, dragging continuity and dead zones. Keyboard TesterTest a full-size keyboard and confirm every key press. Mouse TesterTest buttons, wheel, movement, dragging and double-clicks. Audio TesterCheck speakers, stereo channels, tones and microphone input. Camera & WebcamTest built-in, USB, phone, tablet and compatible TV cameras. Microphone TesterView microphone levels, waveform, recording and playback. Pixel ExerciserExercise a suspected stuck-pixel area with changing colors. Gradient TestInspect gradients, tonal transitions and visible banding. Brightness & ContrastCheck black levels, white saturation and contrast separation. Screen Size TestView viewport, resolution, pixel ratio and display data. Text SharpnessInspect text rendering, browser scaling and clarity. Motion & GhostingObserve motion blur, ghosting and response behavior. Resolution & ScalingCheck screen resolution, CSS pixels and scaling. Device InformationReview screen, browser, hardware and platform information. Browser CapabilityCheck which browser APIs and hardware features are supported. Network TestCheck connection status, latency and estimated download speed. GPS & LocationTest browser geolocation, accuracy, altitude and speed. Sensor TesterTest orientation, motion, acceleration and rotation sensors. Multi-Touch TesterTrack multiple touch points, pinching and rotation gestures.Screen Color ToolsOpen exact full-screen color pages for pixel, uniformity and lighting checks.Response Time TestObserve ghosting, blur and pixel-transition behavior at several speeds.Stylus Drawing TestCheck pen, touch, pressure, tilt and drawing continuity in your browser.