Browser-level input lab
Test your mouse
See what your browser detects from your scroll wheel, clicks, and buttons—then get a clear explanation of what the pattern may mean.
- ✓ No installation
- ✓ No account
- ✓ Events stay local
- Scroll
- Wheel events
- Clicks
- Intervals
- Buttons
- Down / up
Measurements describe browser events, never a guaranteed hardware diagnosis.
Choose by symptom
Run the right test now
Wheel
Scrolling jumps or reverses
Inspect direction changes, timing, delta mode, and isolated reverse events.
Clicks
One click becomes two
Measure completed click intervals against a clearly disclosed heuristic.
Buttons
A button seems unresponsive
See which primary, middle, secondary, and side-button events arrive.
How it works
Observation before diagnosis
01
Run a focused test
Each page measures one specific input behavior for a short session.
02
Review the events
Live feedback shows exactly what the browser reports.
03
Repeat before acting
Results explain limitations and give a practical next step.
Site information
Trust & transparency
About us
Learn how Mouse Diagnostic works and what browser-based testing can observe.
Privacy policy
See how local test data and your theme preference are handled.
Terms & conditions
Understand the conditions and limitations that apply when you use the tools.
Contact us
Report an issue with results, compatibility, accessibility, or privacy.
Continue diagnosing
Related mouse tests
Useful answers
Mouse testing questions
Do these tests access my mouse hardware directly?
No. They observe mouse, pointer, and wheel events delivered to this page by your browser. That is useful for spotting patterns, but it cannot prove a physical defect.
Are my mouse events uploaded?
No. V1 processes raw test samples in memory in your browser and does not send them to a server or analytics service.
Can I use the site on a phone?
The pages and navigation work on touch devices, but the diagnostics need a connected mouse or wheel-capable pointer. Touch activity is not reported as failed mouse input.