Why Mouse Click Latency Matters for Tactical Shooters
In games like Valorant and CS:GO, winning a one-tap duel depends on click latency.
Mouse Diagnostic
Mouse Click Latency
Test mouse click latency and reaction speed in milliseconds. Compare optical vs mechanical mouse switch click response times online.
Click 'Start Reaction Test' Below Click anywhere when box turns emerald green
LAST REACTION TIME 0 ms
BEST (FASTEST) 0 ms
AVERAGE 0 ms
Click Latency Benchmarks
Top esports mice with optical switches yield total system reaction times under 170ms.
How to Get Started
Just three steps to run a complete controller test and understand your controller's health status.
01
Connect Controller
Connect your controller to your computer via USB cable or Bluetooth. If the browser doesn't respond, press any button on the controller to activate the connection.
02
Button Detection
Press each button in the visual interface and confirm the corresponding area lights up on screen. This helps troubleshoot unresponsive or double-clicking buttons.
03
Sticks & Vibration
Rotate the sticks to check linearity and drift issues; click the vibration test button to feel if the left and right motor feedback is working properly.
What would you like to do next?
Select a diagnostic calibration suite, deadzone analyzer, or high-frequency overclock tool.
Fix
Repair & Calibration
Calibrate zero-point offsets or follow step-by-step repair guides.
Optimize
Game Deadzones
Calculate exact radial vs axial deadzone overlays for Fortnite, Apex, & COD.
Telemetry
Overclock & Circularity
Verify true hardware polling Hz stability and statistical circularity grades.
Frequently Asked Questions
Everything you need to know about testing your controller.
How do I test my mouse click latency?
Click "Start Reaction Test" above, wait for the box to turn green, and click as fast as possible. The tool measures your total reaction time in milliseconds.
Do optical mouse switches have lower latency than mechanical switches?
Yes! Optical mouse switches use infrared light beams to trigger clicks, eliminating mechanical debounce delay and cutting click latency to sub-0.2ms.
What is mouse debounce delay?
Debounce delay is a software filter built into mechanical mouse firmware to prevent accidental double-clicks. Optical switches do not require debounce delay.
How this test works & its limits
- This test reads your controller through the browser's standard Gamepad API — no drivers, no installs, nothing leaves your device.
- Readings depend on connection mode: Bluetooth reports at lower rates than USB. Compare like-for-like (wired vs wired).
- We measure the input reaching the browser — display lag and game-engine queues are outside this test's view.
- A clean reading now does not guarantee no drift in-game: deadzones differ per game, and wear develops over time. Use the Drift Timeline to track yours.
- This is a diagnostic, not a hardware-lab certification. For repair or RMA decisions, confirm with a second run or second tool.
100% Client-Side
All Gamepad API data stays in your browser. Zero tracking or data collection.
Instant Results
No downloads, plugins, or software installation needed. Works instantly.
Free Forever
No paywalls, subscription requirements, or hidden usage limits.