01input
Raw Input Viewer
Inspect every browser-exposed axis, button, trigger, and device field in one raw console.
GAMEPAD TESTER · BROWSER-OBSERVED
Gamepad Tester. See the raw signal.
Use this browser-based controller tester with a USB or Bluetooth controller to inspect exposed inputs—no install required. Every sample is processed locally in this browser.
Waiting for controller input.
Live input summary
No controller selected
Waiting for controller
LXLYRXRY
No captured samples
t − 3.0 snow
Four browser-observed stick-axis channels over a fixed three-second window. Button labels mark rising-edge activity.
- LX
- Unavailable
- LY
- Unavailable
- RX
- Unavailable
- RY
- Unavailable
- LT
- Unavailable
- RT
- Unavailable
- Browser-observed rate
- Collecting
Pressed buttons · 0
No pressed buttons
Read-only
Samples stay here
No install
Reports are shared only when you export them.
- Browser
- Current browser
- Connection
- Waiting
- Mapping
- Not exposed by browser
- Samples
- 0
Browser-observed values only. Availability depends on what this browser exposes.
Focused tests
One raw signal. Eight ways to inspect it.
02geometry
Stick Drift Test
Observe stick center, idle movement, range coverage, and circularity evidence.
03input
Button Tester
Check pressed states, analog values, simultaneous inputs, and bounded event counts.
04input
Trigger Test
Compare LT and RT travel, release baselines, observed ranges, and value changes.
05output
Vibration Test
Run short, finite dual-rumble effects when the browser exposes a compatible actuator.
06timing
Polling Rate Test
Measure browser-observed controller report intervals without claiming physical USB rate.
07timing
Input Latency Test
Estimate browser observation age and prompt-to-browser response time with clear limits.
08geometry
Controller Calibration
Build a local center, range, and trigger reference without changing device settings.
Three steps
How it works
01
Connect
Attach a USB controller or pair a Bluetooth controller to begin a controller test, then press any physical button.
02
Observe
Watch browser-exposed sticks, buttons, triggers, and timestamps update without changing device settings.
03
Choose a focused test
Open the tool that matches the evidence you need and read its measurement limits before interpreting results.
Capability-based
Controller and browser compatibility
Common controllers
Run a gamepad test with Xbox-compatible, PlayStation-compatible, Nintendo-style, and generic USB or Bluetooth gamepads when the operating system and browser expose them through the Gamepad API.
Browser coverage
Current Chrome and Edge releases generally provide the broadest desktop coverage. Firefox and Safari support varies by platform, permissions, connection mode, and controller capability.
Measurement boundary
Private by default. Precise about limits.
Local samples
Live controller samples stay in browser memory. Nothing is uploaded by the tester, and optional reports are created locally only when you request them.
Observed, not certified
These tools describe values visible to the browser. They do not certify hardware health, prove physical USB polling rate, measure true end-to-end latency, or repair a controller.
If input is missing
Connection troubleshooting
- Keep this tab active, then press a physical controller button.
- Confirm the controller appears in operating-system Bluetooth or USB settings.
- Close games or remapping utilities that may hold exclusive device access.
- Try another cable, port, connection mode, or current browser release.
Plain answers
Frequently asked questions
Does Gamepad Check change controller settings?
No. The tester reads values exposed by the browser and does not write firmware, drivers, operating-system calibration, or controller settings.
Are controller samples uploaded?
No. Samples stay in this browser. A report leaves the browser only when you deliberately export and share it.
Can this prove hardware polling rate or true input latency?
No. Browser scheduling and the Gamepad API affect timing. An external physical reference is required for true end-to-end latency and physical report-rate certification.
Why does my controller not appear immediately?
Many browsers expose a gamepad only after it sends input. Keep this tab active, press a physical button, and verify the controller is paired with the operating system.