Check the connection and selected device, then repeat the failed check: clicks are not counted.
Part of the Mouse test. Run the full mouse test first for a complete device check.
Clicks are not counted Suspect pairs appear The chosen button changes
Mouse double click test
Collect a longer button sample and isolate immediate duplicate events that follow one physical press.
Also known as: double click test, mouse double click test, double click fix test, mouse switch test. Free, online, and no download required.
No permission neededNothing uploaded
Press the same mouse button repeatedly to build a sample.
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What the mouse double click test checks
| Check | How it is measured | Fails when |
|---|---|---|
| Click sample | Pointerdown timestamps are stored for one selected button. | Fewer than ten clicks arrive. |
| Immediate duplicates | Intervals below 40 ms enter the suspect region. | One physical rhythm produces repeated immediate pairs. |
| Distribution | Intervals are grouped from 0 to 200 ms and beyond. | A distinct cluster appears in the suspect region. |
If something failed
Check the connection and selected device, then repeat the failed check: suspect pairs appear.
Check the connection and selected device, then repeat the failed check: the chosen button changes.
02
How to read the result
How the mouse double click test works
This focused run stores only pointerdown timestamps for the active button and does not merge rapid events. A pure interval function marks sub-40 ms neighbours and returns the distribution used by the hand-written histogram. The longer sample separates an intermittent switch symptom from one accidental fast pair.
What the result can establish
Use a steady single-press rhythm, keep the finger from bouncing intentionally and collect at least twenty presses before finishing.
Measurement limits
The page cannot know physical intent. An intentionally rapid double action can enter the same interval region, so repeatable clustering matters more than one isolated pair.
03
Mouse double click test questions
How many clicks does a double click test need to be reliable?
Collect at least twenty presses with a steady single-press rhythm. One isolated fast pair proves nothing, because an intentional quick double action lands in the same interval region. A repeatable cluster of duplicates across a longer sample is the evidence that matters.
What interval counts as a duplicate in this mouse switch test?
Two events on the same button less than 40 ms apart enter the suspect region. Human double-clicking is normally well above that, so a tight cluster below 40 ms points at switch bounce rather than at your hand.
The double click fix test found duplicates. Can it be repaired?
Often, yes. Worn micro-switches are a common and replaceable failure, and some manufacturers cover them under warranty. Before opening anything, repeat the run on another port and another browser so the evidence rules out a software or connection cause.