Double Click Test - Mouse Chattering Detection Tool
A free tool to detect mouse double clicks (chattering) in your browser. Measures click intervals in real time to identify unintended double clicks. Adjust the threshold to diagnose the severity of mouse chattering. Supports both left and right click testing.
#1Double Click Detection Area
Click the area below to test. If the click interval is at or below the threshold, it will be detected as a double click (chattering).
Do not intentionally double click. Instead, repeat single clicks. If detections still occur, your mouse may have a chattering issue.
Detection Threshold80 ms
10ms200ms
Left Click Here
Total Clicks0
Detections0
Last Interval—
Min Interval—
What is Chattering?
Mouse chattering is a phenomenon where a single click registers as two or more clicks. It is caused by switch degradation or poor contact inside the mouse. This test detects chattering when the click interval falls at or below the configured threshold.
Test Instructions
1. Select the button to test (Left/Right)
2. Set the threshold (default: 80ms)
3. Repeat single clicks in the test area (not double clicks)
4. If the "Detections" count increases, chattering is occurring
2. Set the threshold (default: 80ms)
3. Repeat single clicks in the test area (not double clicks)
4. If the "Detections" count increases, chattering is occurring
Threshold Guidelines
40ms or less -- Very strict detection. Fast clickers may trigger false positives
60-80ms -- Standard threshold. Appropriate for most users
100ms or more -- Lenient detection. May detect intentional fast clicks
Frequently Asked Questions (FAQ)
Q. What should I do if chattering is detected?
A. First, try cleaning the mouse switch contacts (blow compressed air into the switch area). If the issue persists, consider adjusting the OS double-click speed setting, installing anti-chattering software, or replacing the mouse.
Q. What threshold should I set?
A. 60-80ms is generally recommended. Since normal single click intervals are typically over 100ms, detecting double clicks below 80ms is a strong indicator of chattering.
Q. Should I test the left or right button?
A. Test whichever button you suspect has chattering issues. The left button typically wears out first, but chattering can also occur on the right button.
Q. Does the browser or OS affect the results?
A. Browser event processing has a slight delay, but it provides sufficient accuracy for chattering detection. However, OS mouse settings (such as double-click speed) may affect event firing.