Mouse tester — online mouse button & scroll wheel test

What is a mouse test (mouse tester)?

A mouse test (also called a mouse tester or mouse checker) checks whether all buttons and the scroll wheel on your mouse are working correctly. This online mouse testing tool displays a mouse illustration that highlights each button when you click it on your physical mouse. It supports left click, right click, middle button, and side buttons (buttons 4 and 5). It also detects scroll wheel movement up and down. Unlike built-in OS diagnostics, this browser-based mouse test lets you quickly identify unresponsive buttons, double-click issues, and scrolling problems without installing any software.

Online mouse tester features

A complete browser-based mouse tester for checking every button, scroll wheel, and click behavior with real-time visual feedback.

1. All mouse buttons tested — left, right, middle & side: This mouse test checks up to 5 buttons: left click (button 1), middle click (button 2), right click (button 3), and two side buttons (buttons 4 and 5). Each click lights up the corresponding button on the illustration.
2. Scroll wheel test — scroll up and down: Test your mouse scroll wheel by scrolling up and down on the illustration. The arrows light up green to confirm each scroll direction works. A combined scroll test for both wheel and tilt scrolling.
3. Mouse click test with double-click detection: Each button has a click counter. Watch the numbers—if a single physical click registers as two or more counts, your mouse may have a double-click issue. A reliable mouse click test for diagnosing intermittent problems.
4. Real-time visual feedback: Click any button and see it light up instantly on the mouse diagram. The pressed button changes color for immediate visual confirmation. No delays or lag.
5. Click counters per button: Track how many times each button has been clicked during your mouse test session. Useful for identifying double-clicking, intermittent contact, or sticky buttons.
6. Works with any mouse — wired, wireless & gaming: Compatible with wired mice, wireless mice, Bluetooth mice, gaming mice, and laptop trackpads. Use Chrome or Firefox for full support of all 5 buttons.

How to test your mouse online

A simple step-by-step process to test every mouse button and your scroll wheel using this free online mouse tester.

1. Click each mouse button one by one: Start with left click, then right click, middle button, and the side buttons (if your mouse has them). Each click makes the corresponding button on the mouse illustration light up. Watch the counters to check for double-clicking.
2. Test the scroll wheel: Point your cursor at the mouse illustration and scroll up and down. The up and down arrows light up to confirm your scroll wheel is working in both directions.
3. Check the results and diagnose issues: If all buttons on your physical mouse light up when clicked, your mouse passed the test. If any button does not light up, or if the click counter shows extra counts, your mouse may have a faulty button or double-click issue.

Mouse troubleshooting — why buttons or scroll wheel are not working

Common fixes if your mouse buttons are not registering, the scroll wheel is not detected, or your mouse test shows problems.

1. Use an updated browser for the mouse test: Some older browsers cannot detect all mouse buttons. Use Chrome or Firefox (latest version) for this mouse tester to correctly detect all 5 buttons and the scroll wheel.
2. Check the connection — USB, Bluetooth, or wireless: If the mouse test shows no response, check your connection. Try a different USB port, reseat the wireless receiver, or repair Bluetooth. A loose connection can cause mouse buttons to seem faulty.
3. Test on another computer: Plug your mouse into a different computer and run this mouse test again. If the same buttons fail on both computers, the mouse hardware is likely faulty.
4. Side buttons (4 and 5) browser support: Buttons 4 and 5 are not supported by all browsers. Chrome and Firefox fully support them. If your side buttons do not light up in Edge or Safari, try Chrome or Firefox.
5. Clean the mouse sensor and scroll wheel: If the scroll wheel feels rough, skips, or jumps, dust or debris may be trapped around the wheel. Clean gently with compressed air or a soft cloth. A clean wheel improves scroll test results.
6. Update or reinstall mouse drivers: For gaming mice with custom software (Logitech G HUB, Razer Synapse, etc.), check for driver or firmware updates. Reinstalling drivers can fix unresponsive buttons.
7. Check for double-click issues: If a button click counter jumps by 2 or more with a single press, your mouse may have a double-click problem. This is common in older mechanical switches and often requires mouse repair or replacement.

Frequently Asked Questions

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