Mouse Drag Dropout Test
Hold the primary mouse button and trace around the test area for eight seconds.
Start inside the field. Keep holding even if the pointer moves outside it.
Local history
Save a result to keep it in this browser. History holds your five most recent saved results for this test.
No saved results yet.
How to use the Mouse Drag Dropout Test
How do I test a mouse that drops items while dragging?
Start inside the field and keep the primary mouse button down until the timer ends. Draw slow loops or repeat the movement that usually drops an item. A trackpad also works when it sends a primary mouse press.
What does an early release mean?
The browser received a release, or no longer saw the primary button held, before the timer ended. Compare several runs. If the result repeats while your finger is still holding the button, try another USB port or connection.
What happens if I switch tabs?
The check stops without a saved result when it loses focus or pointer capture. Start a fresh run with the test in view.