Free controller tool · No download
Trigger Test
This controller trigger test reads LT/RT or L2/R2 pressure from the Gamepad API. Squeeze each trigger slowly to confirm analog travel — useful when racing games ignore partial presses or a bumper feels fine but a trigger does not.
Connect your controller
USB or Bluetooth. Press any button if nothing appears.
How to use this tool
- Connect your controller.
- Slowly press the left trigger, then the right.
- Confirm values rise smoothly from rest to full press.
- Note whether the tool labels the source as a button or an axis.
What the readings mean
Buttons vs axes
Many standard pads expose triggers as analog buttons 6 and 7. Others report them as axes. The tool reads whichever source the browser provides and labels it in the panel so your trigger test stays interpretable.
Related checks
For digital face buttons use the controller button tester. For a full live overview, return to the gamepad tester.
Compatibility and limitations
Requires a controller that exposes trigger values through the Gamepad API.
Adaptive trigger resistance (DualSense) is not controllable here — only reported analog values when present.
FAQ
Why is my trigger stuck at zero?
The browser may map that trigger differently, or the pad may not expose analog triggers. Try another browser and check the mapping tool.
Can I test L2 and R2 here?
Yes when the PlayStation-style pad reports those controls to the Gamepad API.
Are triggers the same as bumpers?
No. Bumpers are usually digital; triggers are often analog.
Related
Keep testing
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