Test left click, right click, middle button, and scroll wheel. Detect double-click issues and verify all mouse inputs instantly in your browser.
Follow the steps, click left/middle/right, and scroll up/down on the illustration. Once all five actions are detected, your mouse passes.
Press left, middle (wheel click), and right. Each card should highlight and count your presses.
Hover the illustration, scroll the wheel up once, then down once. Both arrows should light up.
Score reaches 100% when all five actions are detected. Use reset to run it again.
Interact directly with the mouse illustration. Each action lights up and counts toward your score.
A mouse test verifies all your mouse functions are working: left, right, middle button clicks, and scroll wheel movement in both directions. It detects common issues like double-clicking bugs and scroll wheel skipping. Useful for troubleshooting, testing mice before purchase, or diagnosing hardware issues. This browser-based tester runs instantly with no installation required. Use it as a mouse click test, double click test, scroll wheel test, or full mouse button test—all free in your browser with no software needed.
Our mouse tester covers every standard input check in one place.
Verify left click, right click, and middle button independently. Each button lights up on press and resets on release. Confirms all three primary mouse buttons are registering correctly.
Detect if single clicks are being registered as double-clicks—a common symptom of micro-switch wear. Our test highlights each click event so you can see if extra clicks are appearing unexpectedly.
Test scrolling up and down to check for skipping, jumping, or scroll reversal. Identifies worn scroll encoders and debris-related scroll issues before they get worse.
Complete button coverage for all three standard mouse buttons. Side buttons (back/forward) typically require manufacturer software, but left, right, and middle are fully testable here.
Use this tool to verify every button and scroll action.
Our mouse tester uses JavaScript event listeners to detect mouse button presses (left, right, middle) and scroll wheel movements. When you click or scroll, the browser fires events that we capture and visualize in real-time. We track each button's state, count clicks, measure scroll direction and speed, and detect potential double-click issues. All processing happens locally in your browser with no data sent to servers.
This browser-based test accurately detects standard mouse buttons (left, right, middle) and scroll wheel events. However, there are limitations: Side buttons and extra gaming buttons may not be detected by browsers. DPI and sensor accuracy cannot be tested through web events. Some gaming mice with proprietary drivers may behave differently. For comprehensive mouse diagnostics, manufacturer software may be needed.
Buttons should light up immediately when pressed and return to normal on release. Delayed or stuck highlights may indicate switch issues or driver problems.
If single clicks register as double-clicks, your mouse likely has switch wear. This is a common issue in older mice and may require repair or replacement.
Scroll should register smoothly in both directions. Skipping, reversing, or erratic behavior indicates encoder issues or debris inside the scroll mechanism.
Common situations where an online mouse test is essential.
Unintentional double-clicks and scroll jumps directly affect competitive gaming performance. Verify your mouse is registering inputs correctly before ranked matches.
Always test a second-hand mouse before buying. Check all three buttons for correct registration and scroll for smoothness—common wear points on used mice.
Use our click test to confirm whether your mouse has switch wear. Seeing two click events per press confirms the problem and helps you decide between repair, warranty claim, or replacement.
Mouse driver updates occasionally change button behavior or scroll sensitivity. Run a quick test after updates to confirm all inputs are responding as expected.
Common mouse problems and how to diagnose them.
Cause: Micro-switch wear or too-short debounce time. Fix: Adjust double-click speed in OS settings, clean the switch with compressed air, update firmware, or replace the micro-switch. Check manufacturer warranty—many brands cover this.
Cause: Dust or debris in the scroll encoder, or worn encoder wheel. Fix: Blow compressed air around the scroll wheel, reduce scroll speed in OS settings. If persistent, the encoder may need replacement.
Cause: Loose USB connection, driver conflict, or faulty switch. Fix: Try a different USB port, unplug and replug, reinstall mouse drivers, or test in another browser. If only one button fails consistently, the switch may need replacement.
Key terms to understand your mouse test results.
Answers for clicks, scroll, and button issues.
Keep your mouse performing reliably for longer.
Dirt and grit on mouse feet or your mousepad increase friction and affect sensor tracking accuracy. Wipe the feet with isopropyl alcohol and clean your mousepad monthly.
Cloth pads work better with optical sensors; hard pads reduce friction for faster movement. Using an inappropriate surface can cause cursor jitter and affect sensor accuracy.
Logitech G Hub, Razer Synapse, SteelSeries GG, and other manufacturer apps provide firmware updates that can fix double-click issues, improve polling rate stability, and add features.
Some gaming mouse software lets you adjust debounce time. If your mouse double-clicks, try increasing debounce. If rapid clicks aren't registering, reduce it. Finding the right balance improves reliability.
More free tools to check your setup.
Test your mouse double-click speed. Measure the gap between clicks and check if they register as double-clicks.
Measure mouse polling rate (browser event Hz) with distribution, median, peak, and stability checks.
Calculate your mouse's actual DPI by moving it a measured distance. Verify if your mouse matches its rated specification.
Test your mouse scroll wheel speed and behavior. Measure deltaY values, scroll direction, and events per second.
Precision click test — click stationary targets and measure your accuracy percentage and click speed across difficulty levels.
Methodology: Our testing methodology uses standard Web APIs (MouseEvent, WheelEvent) supported by all modern browsers. Tests are designed for accuracy and repeatability.
About: HardwareTest provides free, privacy-first hardware diagnostics. All tests run entirely in your browser with no data collection.
Disclaimer: This tool tests standard mouse functions only. Side buttons and advanced features may require manufacturer software. For warranty claims, consult your mouse manufacturer.
Tips for clicks, scroll wheels, and performance.
A data-backed look at 100 gaming mice across 125Hz to 8000Hz, with stability notes, real-world limits, and how to compare your setup using our mouse polling rate test.
A 2026 roundup of hardware testing tools, from browser-based no-install checks for mice and screens to GPU stress tests and system monitoring.
Web-based mouse polling tests measure browser-delivered pointer event frequency, not raw USB polling. Learn why ~125Hz appears, why high polling rates are indistinguishable on the web, and how to interpret results.
Learn the difference between CPS and CPM, what counts as a good click speed, and whether 10-second or 30-second tests are more accurate. Then run our free click speed test and share your results.
Learn what mouse polling rate (Hz) means, the real difference between 125/500/1000Hz, and how to test your mouse polling rate online using our browser-based distribution and stability checker.
Check if your gaming keyboard truly runs at 1000Hz, 500Hz, or 125Hz with our free online polling rate tester and real-time Peak Hz dashboard.