Private by default
Raw input, audio and video stay in this browser tab.
PRIVATE DEVICE DIAGNOSTICSKnow what your
Know what your
devices are doing.
Run focused tests for controllers, mice, keyboards, displays, audio, cameras and browser hardware. Nothing to install and no raw signal uploads.
Your data stays yours.Tests run locally in this tab.
DEVICE LABWhat do you want to test?
ReadyControllerButtons, sticks, triggers and drift.→MouseClicks, wheel, movement and timing.→KeyboardKeys, repeats and simultaneous input.→DisplayPixels, motion, geometry and refresh.→AudioMicrophone, speaker and signal path.→CameraPreview, resolution and frame delivery.→HardwareBrowser-visible CPU, GPU and system APIs.→
Permission on request
Only camera and microphone tests ask for device access.
Results with context
Every result states what was observed and what was not.
COMMON CHECKS
Start from the problem you see.
These focused routes open the same local test engines with a method and result guide tailored to one symptom.
Browse all 37 tests →AXES / BUTTONS / TIME
Stick drift
Leave sticks idle and check center drift.
Run test→MOVE / 5 BUTTONS / WHEELEvent rate
Move the mouse and sample browser event rate.
Run test→KEY / CODE / LOCATIONEvery key
Press keys and see what registers.
Run test→PIXELS / FRAME TIME / COLORRefresh delivery
Measure browser frame cadence for eight seconds.
Run test→PCM LEVEL / DEVICE PATHMicrophone
Start the mic and watch level, waveform and spectrum.
Run test→VIDEO STREAM / SETTINGSWebcam
Open local preview and read resolution and FPS.
Run test→EXPOSED SYSTEM CAPABILITIESWebGL
Check WebGL version, limits and extensions.
Run test→HOW INPUTPROOF WORKS
Evidence without false certainty.
Browser diagnostics have limits. InputProof keeps those limits visible, measures a useful signal window and separates an observed issue from an incomplete test.
- 01Observe the live signal
See exactly what the browser can read before drawing a conclusion.
- 02Measure a stable window
Timed samples and robust statistics reduce one-frame false alarms.
- 03Act on visible evidence
Results include confidence, limitations and a practical next step.
READY WHEN YOU ARE
Start a test