Input analysis, diagnostics, and result generation are performed only in your browser. Mouse actions and diagnostic results are not sent to or stored on Develop Tools servers.

Settings

Check common mouse buttons, wheels, linearity, and micro-movements.

mouse format trackball position moving test Chattering detection

Input Pointer Events / Mouse Events Get cursor: Input Stationary measurement: Not measured

Button input

Displays in red when pressed, and in blue when confirmed.

Pressed down Confirmed

Move pointer

Move the mouse or trackball inside the box. The context menu is disabled only within this box.

Please move your pointer here

coordinates X 0 / Y 0

Travel amount ΔX 0.0 / ΔY 0.0

Current speed 0.0 px/s

Total distance traveled 0.0 px

Estimated event rate 0 events/s

Pressed down -

Maximum simultaneous presses 0

Wheel total X 0 / Y 0

drag move 0 events

double click 0 times

Mean trajectory error 0.0 px

Input diagnostics

Displays minor movement occurring during a quick re-click and a 5-second stationary measurement.

There are no diagnostic messages.

Input event log

Displays the latest 200 clicks, releases, wheels, and double clicks.

time	types	Input	Values

Waiting for mouse input.

About this tool

Check the input status and signs of malfunctions on laser mice, thumb trackballs, and palm trackballs before using them for gaming or work.

Features

Left/right/center/back/forward buttons, simultaneous press, long press, double click, vertical/horizontal wheel confirmation
Movement trajectory, linear/circular motion, minute movement, estimated event rate, resting jitter, Pointer Lock, JSON save

How to use

Select the mouse format and movement test you are using.
Press the button and move the pointer within the test area to check the coloring, trajectory, and numbers.
Measure idle jitter as needed, then save diagnostic results as JSON.

Limitations

It is not possible to accurately obtain sensor method, product model, real DPI, USB polling rate, and hardware delay from the browser.
The behavior of Back and Forward buttons and Pointer Lock depends on OS, driver, and browser settings.

Privacy: Mouse input analysis and diagnosis are performed within the browser, and the operation history and diagnosis results are not sent or saved to the Develop Tools server. JSON is saved only on the user's device.