Free Mouse Trail

Mouse Trail guide

Track your cursor path and inspect movement samples

This cursor tracker draws the positions your browser receives inside the workspace. Use it to inspect a path, read live X/Y coordinates, compare repeated movements, or export a trace. A line or sample-dot view is more useful for inspection than decorative emoji trails.

Run a repeatable movement check

Read the measurements correctly

X/Y can be relative to the workspace, browser viewport or web page. All coordinates and path distance use CSS pixels, not physical sensor counts or inches. ΔX/ΔY is the difference between successive workspace positions in the same stroke. Sample interval is the time between those browser samples. Recorded movement time sums intervals of at most 250 ms; longer pauses and travel outside the workspace are excluded.

The line joins received positions without adding a smoothing filter. Jagged paths or large gaps can be worth repeating, but they do not by themselves prove a faulty sensor: your hand, operating-system settings, browser scheduling and merged pointer events can all affect the trace.

Looking for raw cursor input or a different mouse test?

A browser page receives pointer events rather than raw USB/HID packets. Where supported, this tool reads coalesced positions to retain more of the browser's movement samples. It cannot measure physical DPI, switch off operating-system acceleration, capture other applications, or install a desktop-wide cursor trail.

Use the mouse button and wheel test for clicks and scrolling, the polling-rate test for browser event-rate estimates, the DPI tester for a measured-distance comparison, or the mouse accuracy test for target-click practice.