Mouse & Trackpad Tester
Test your mouse or trackpad, measure click speed, input-lag latency and polling-rate – no downloads required.
Simple Browser Mouse & Trackpad Testing
MouseTester.uk delivers instant mouse testing and trackpad testing so you can spot skips, jitter, and dead zones before they cost you clicks.
Questions or feedback? Email [email protected].
Why Latency & Polling-Rate Matter
Every time you move or click, your mouse sends a report to the computer. Polling rate tells you how many of those reports are sent per second (e.g. 1000 Hz = once every 1 ms). Input-lag latency is the delay between your physical click and the moment the operating system registers it. Competitive gamers chase sub-2 ms latency for faster reaction times, but photographers and UI designers also need consistent pointer movement for pixel-perfect work.
- High polling rates smooth out mouse movements.
- Low, consistent latency reduces double-click errors.
- Having mouse jitter often points to cable, USB-hub or sensor issues.
All tests on this site run entirely in your browser — no test data leaves your device. Important: Our browser-based tests measure event timing and consistency as observed by your browser, which includes additional delays from browser processing, OS scheduling, and other factors. While useful for detecting issues and comparing relative performance, results won't precisely match manufacturer hardware specifications. See the about page for more information.
Have a mouse issue? Check these great mice out!
If your tests show double-clicks, jitter, or inconsistent polling, these are popular “known-good” mice that help rule out hardware problems fast.
Affiliate links — no extra cost to you. Full recommendations ↓
Issues with clicks, jitter or lag? See proven mouse fixes
🛠️ Mouse & Trackpad Tools Lab
Run any of the diagnostics below to uncover latency spikes, polling-rate drops, scroll-wheel jitter and other hidden input glitches. All tests run locally in your browser. If you find any bugs please use the email above. Please note the Rogue Input Detector tool will open in a new window with green text.
📱 Got a Touchscreen Device?
If you have a tablet, 2-in-1 laptop, touchscreen monitor, or interactive kiosk, use our Rogue Input Detector to identify phantom touches, ghost clicks, and calibration issues.
This tool runs continuously to catch intermittent problems that only appear during extended use. Perfect for diagnosing frustrating touchscreen glitches. Click here to try it →
Click Speed Tester
Click the button as fast as you can for 5 seconds.
Trackpad Sensitivity Grid
Drag over the grid to test sensitivity.
Input Lag Tester
Move your mouse after starting to plot latency over time.
Technical Details:
This tool measures the time between consecutive mousemove events as reported by your browser's JavaScript engine.
What it measures: Event delivery consistency (not true hardware latency)
Browser limitations:
requestAnimationFramethrottles events to display refresh rate (typically 60Hz = ~16ms)- Background tabs may be throttled to 1Hz or paused entirely
- OS event coalescing can merge multiple hardware events into one browser event
- CPU load and power-saving modes affect timing accuracy
Best for: Detecting inconsistent input, comparing mice, identifying problems — not for verifying manufacturer specs.
Polling Rate Tester
Higher polling rates equal smoother movement — ideal for gaming.
Technical Details:
This calculates how frequently mousemove events arrive at the browser by tracking timestamps.
Why it's different from hardware polling rate:
- Hardware layer: Your mouse sensor samples position at 125Hz, 500Hz, or 1000Hz
- USB layer: USB controller polls the mouse at the configured rate
- OS layer: Operating system may batch events or apply smoothing
- Browser layer: JavaScript can only see events after all the above processing
Example: A 1000Hz mouse will typically show 60-120Hz in this test because:
- Browser
requestAnimationFramelimits updates to display refresh rate - OS may coalesce multiple events to reduce CPU overhead
- Background processes affect timing precision
Use this to: Compare different mice, detect drops in event frequency, verify your mouse is reporting events — not to confirm manufacturer Hz ratings.
Mouse Health Verdict
Based on your test results (latency + polling). This won’t change unless you run the tests.
As an Amazon Associate MouseTester.uk can earn from qualifying purchases and eligible Prime trial sign‑ups. Recommendations are shown only when results suggest an issue.
