Mouse Tester & Mouse Checker — click test, scroll & buttons
Test your mouse instantly — click, scroll, and drag right here to check every button. No download needed, works in any browser.
Click, right-click & scroll to test
Quick-test your mouse here.
Full diagnostics in one click.
Play & test — check your mouse performance with games
Challenge your mouse skills
Fun tests designed to measure and improve your speed, accuracy, and reflexes.
Click Speed Test
How fast can you click? Measure your CPS score and compete with yourself.
Reaction Time Test
Test your reflexes — click when the screen turns green. How fast can you react?
Aim Trainer
Click targets as fast and accurately as possible to sharpen your aim.
Whack-a-Mole
Classic arcade fun — how many moles can you catch in 30 seconds?
All diagnostic tests
Comprehensive tools to identify hardware issues quickly and accurately.
Mouse Button Test
Test all buttons in real-time — left, right, middle, and side buttons.
Detects 5+ buttons
Scroll Wheel Test
Detect scroll direction errors and jumping issues with precise tracking.
Tests both axes
Mouse DPI Test
Measure your actual DPI with precision calibration.
Pixel-level accuracy
Mouse Hold Test
Verify click-and-hold stability for reliable drag operations.
Continuous monitoring
Mouse Latency Test
Measure input lag in milliseconds between click and response.
< 1ms precision
Mouse Input Test
Track raw mouse movement data and coordinate reporting.
Real-time tracking
Why we built Mouse Tester
We're a small team of hardware enthusiasts who got tired of unreliable mouse testing tools. Most online testers are either bloated with ads, inaccurate, or missing basic features like side button detection.
So we built the tool we wanted to use ourselves — fast, accurate, and completely free. Every test runs locally in your browser. No data is collected, no account required, no install needed.
Whether you're a gamer checking a new mouse, an office worker troubleshooting a double-click issue, or someone testing a second-hand mouse before buying — this is the tool we wish existed when we needed it.
Common Mouse Issues
Identify and diagnose the most frequent mouse problems with our testing tools
Double-clicking when you single-click
Symptom
Mouse registers two clicks when you only click once
Common Cause
Worn out switch mechanism, common in older or heavily used mice
Scroll wheel jumping or skipping
Symptom
Pages jump in wrong direction or skip sections while scrolling
Common Cause
Dust buildup, encoder wear, or driver issues
Side buttons not working
Symptom
Programmable side buttons don't respond
Common Cause
Driver issue, software conflict, or hardware failure
Frequently Asked Questions
Everything you need to know about Mouse Tester
Ready to test your mouse?
Diagnose hardware issues or challenge your speed and reflexes — all free, no signup, works in any browser.
Trusted by thousands of users worldwide. No data collected.