How does the mouse polling rate test work?

The tool measures the frequency of mousemove events per second while you move the mouse across the test area. Standard mice report at 125Hz (8ms intervals), while gaming mice operate at 500Hz or 1000Hz (1ms intervals) for smoother cursor tracking.

Can I test trackpad gestures and scroll precision?

Yes! The scroll wheel test measures scroll delta values, direction, and smoothness. Trackpad users can verify two-finger scroll precision, acceleration curves, and scroll distance per gesture.

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Hardware Testers•Free & Instant

Mouse, Trackpad & Scroll Tester

Test mouse buttons, scroll wheel speed, polling rate, and identify microswitch double-click faults.

Instant browser processing Private & Auto-Purged

Hardware TestersPeak 0 Hz Sensor

Mouse, Trackpad & Scroll Tester

Test mouse buttons, scroll wheel speed, polling rate, and identify microswitch double-click faults.

🔒 100% In-Browser Hardware Diagnostic

Zero camera frames, microphone audio, keystrokes, or gamepad telemetry are transmitted to any server. Diagnostics run entirely inside your browser's local sandbox.

Estimated Polling Rate

Move Cursor in Arena to Test

0Hz

Peak Recorded: 0 Hz

Total Clicks

L: 0 | R: 0

0Clicks

Combined button actuation count.

Fastest Click Interval

Click to Test

N/Ams

Interval between consecutive clicks.

Scroll Wheel Distance

Ready

0Notches

Delta Y: 0px

Interactive Click & Scroll Zone

Right-Click & Side Buttons Unlocked

Left0

Middle0

Right0

Back0

Forward0

Sensor Polling Rate & Drawing Arena

Live Polling Rate

0 Hz

Cursor Speed

0 px/s

Move your mouse rapidly inside this arena

Measures real-time Hz, jitter & trajectory

Peak: 0 HzMax Speed: 0 px/s

Microswitch Double-Click & Debounce Fault Analyzer

Debounce Fault Threshold: < 80 ms

When copper spring leaves inside mouse switches (Omron, Kailh, Huano) wear out, a single physical click can chatter and send two rapid signals (<80ms), causing unintended double-clicks in games or desktop tasks.

Microswitches Healthy

No unintended rapid double-clicks registered under 80ms.

Consecutive Click Speed Log (Last 25 Clicks):

Perform rapid clicks in the test zone to log microswitch intervals.

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How to Convert with Mouse, Trackpad & Scroll Tester

Follow these 3 simple steps to complete your conversion in seconds.

Step 1 of 3

Grant Browser Permissions

Click "Start Test" and allow browser access to your camera, microphone, or peripherals when prompted. All data stays 100% local in your browser.

💡 Tip: No data is recorded, uploaded, or stored. Zero server contact.

Step 2 of 3

Run Interactive Diagnostics

The tool runs real-time diagnostics on your hardware, measuring resolution, frame rate, volume levels, latency, drift, and other device-specific metrics.

Step 3 of 3

Review Results & Share Report

View your live diagnostic scorecard with pass/fail indicators. Copy results to share with IT support or embed this test on your own website.

Mouse, Trackpad & Scroll Tester Browser Diagnostic API & Technical Specification

Formula representation used for accurate calculations:

MediaDevices API: navigator.mediaDevices.getUserMedia({ video: { width, height, frameRate }, audio: true }) Refresh Rate: requestAnimationFrame() frame count per 1-second window Gamepad API: navigator.getGamepads() polling axis/button state at 16.67ms intervals

Calculation Example: Webcam: 1920×1080 @ 30fps via getUserMedia constraint negotiation. Screen: 144Hz detected via 144 RAF callbacks per 1000ms window.

Hardware Diagnostic Test Capabilities & Browser API Reference

Quick reference lookup table for standard unit calculations.

All diagnostics execute 100% client-side in your browser using standard Web Platform APIs. Zero data is uploaded or recorded.
Diagnostic Tool	Browser API Used	Key Metrics Measured
Webcam Tester	MediaDevices.getUserMedia (video)	Resolution (720p/1080p/4K), FPS, device label, codec support
Microphone Tester	MediaDevices.getUserMedia (audio)	Volume level (dB), noise floor, echo loopback, sample rate
Speaker Tester	Web Audio API (AudioContext, OscillatorNode)	L/R stereo channels, frequency sweep (20Hz–20kHz), bass response
Screen Display Tester	requestAnimationFrame, Fullscreen API	Refresh rate (Hz), dead/stuck pixels, contrast gradient banding
Keyboard Tester	KeyboardEvent (keydown/keyup)	Key map verification, N-Key Rollover, ghosting, switch chatter
Mouse Tester	MouseEvent, WheelEvent	Click buttons, scroll delta, polling rate, double-click fault
Gamepad Tester	Gamepad API (navigator.getGamepads)	Stick drift %, trigger pressure, button map, rumble motors
Call Readiness	MediaDevices + RTCPeerConnection	Camera/mic/speaker pass/fail, WebRTC latency, readiness score

Frequently Asked Questions

Common questions and answers about Mouse, Trackpad & Scroll Tester.

If the Double-Click Fault Tester detects click intervals under 80ms during a single physical click, the microswitch spring is bouncing and likely needs replacement.