Mouse Latency Test
Test your mouse latency, visual rendering lag, and click response time. Use our free online input lag tool to optimize your gaming setup.
Move Your Mouse Rapidly
Event Processing Lag: 0.00ms
About The Latency Modes
Measure your exact input delay and system responsiveness with our specialized latency modes. Here is how they work:
Visual Lag
Visual Lag mode demonstrates the rendering delay between your physical mouse movement and your display output. Your real hardware cursor is kept visible, while a glowing software cursor trails behind it. The neon trail visually represents the frames of input delay inherent to your browser and monitor refresh rate.
Event Timing
Event Timing captures the raw data stream from your mouse. It measures the precise millisecond delta between each 'mousemove' event registered by your browser. This mode highlights USB polling inconsistencies, CPU stutter, and packet drops, giving you an exact read on your maximum latency spikes.
Click Latency
Click Latency measures the actual hardware lag and switch debounce time of your mouse. Click anywhere in the box, and the tool will calculate the exact millisecond delay between the moment your physical click occurred and when the browser registered it (Event Latency). It also measures your Click Duration (the exact time between your mouse button going down and coming back up).
Mouse Latency Test
## Why Measure Mouse Latency?
Input delay can severely impact your performance in fast-paced games. By identifying whether your lag comes from visual rendering (monitor/GPU), inconsistent polling (USB connection), or slow click registration (mouse switches), you can accurately troubleshoot your setup.
## Visual Lag vs Hardware Latency
The visual lag test specifically highlights the difference between your OS hardware cursor (which is rendered independently) and the browser's software rendering pipeline. A longer neon trail indicates higher system rendering latency, which can often be fixed by disabling V-Sync or upgrading your monitor.
Frequently Asked Questions
Everything you need to know about this tool and benchmarks