Mouse Test Tool

Online Mouse Test Tool runs entirely in your browser with nothing to install. Whether you have just bought a new mouse, an old one started double-clicking on its own, or you simply want to measure your click speed, this page gives you a complete mouse health check in one place.

Key Features

• Five-button detection: counts clicks for left, right, middle, back and forward buttons separately, with real-time highlight on each press so you can confirm every button responds correctly.
• Double-click fault detection: a press within the adjustable threshold (5–200 ms) after release is recorded as a double-click fault. If faults keep rising during slow, deliberate single clicks, the micro switch is likely worn. Each button keeps a full log of every fault interval.
• Drag stroke drawing: left-drag draws a blue line and right-drag a red line inside the test area. A healthy switch produces continuous strokes—if a line breaks mid-drag, the switch is probably chattering.
• Hold-time tracking: shows the duration of every left/right button hold and the longest hold, helping you spot clicks that drop out early.
• Polling rate measurement: move the mouse in quick circles to estimate the polling rate and its peak value; results are most accurate on Chrome and Edge.
• Scroll wheel test: counts wheel up, down, tilt left and tilt right separately to check the wheel encoder for skipped or ghost steps.
• CPS click speed test: choose 1, 5 or 10 seconds, click as fast as you can and the tool calculates clicks per second while keeping your personal best.

Use Cases

• Verifying a brand-new mouse out of the box.
• Diagnosing "single click becomes double click" or broken drag lines before replacing the mouse.
• CPS training and benchmarking for gamers.
• Quick hardware triage by IT staff and repair technicians.
• Testing a second-hand mouse before purchase.

How to Use

1. Move into the test area and click each button slowly, watching the per-button counts and status.
2. Keep clicking slowly without deliberate rapid firing—rising fault records indicate a worn switch.
3. Hold the left or right button and drag to draw lines; check that strokes stay continuous and hold durations stay stable.
4. Switch to the Live Stats tab to measure polling rate and scroll wheel directions.
5. Switch to the Click Speed tab, pick a duration, press Start and click rapidly in the test area.

FAQ

Q: Is the tool free? Is my data uploaded?

A: It is completely free. All detection logic runs locally in your browser; mouse activity is never sent to any server. Your CPS personal best is stored only in your local browser.

Q: What is a mouse double-click fault?

A: It means one physical press triggers two signals, usually caused by an aging micro switch whose contacts bounce or lose elasticity. If faults keep appearing while you click slowly, the switch is likely failing.

Q: How should I set the double-click threshold?

A: The default is 30 ms, tuned to catch switch bounce. Raise it if normal fast single clicks are flagged, or lower it to increase sensitivity to mild faults.

Q: Why does the polling rate look inaccurate?

A: Browsers cannot read the hardware polling rate directly; the tool estimates it from the frequency of move events. Chrome and Edge give the closest results, while Firefox and Safari may cap events at the screen refresh rate.

Q: Does it work on a trackpad or a phone?

A: Trackpads can be tested for clicks, drags and scrolling. On touch screens you can test CPS and movement strokes, but there are no separate buttons and no polling rate.