Controllers
Diagnose stick drift, deadzone behavior, button and trigger faults, polling rate and calibration issues for gamepads and joysticks.
Test controllers, keyboards, mice, touchscreens, styluses, mobile sensors, displays, audio, webcams and microphones directly in your browser. No download or account required. Diagnostic device readings stay in your browser.
Diagnose stick drift, deadzone behavior, button and trigger faults, polling rate and calibration issues for gamepads and joysticks.
Check every key, test simultaneous rollover and detect ghosting or chatter across the full matrix.
Verify pointer movement, click switches, wheel input and polling-rate behavior with live browser measurements.
Test multi-touch coverage, ghost-touch resistance and stylus pressure and tilt accuracy.
Inspect accelerometer, gyroscope and orientation data from your mobile device in real time.
Screen for dead pixels, colour uniformity, gradient banding and sharpness with fullscreen test patterns.
Verify stereo channel routing, frequency response and microphone input level with controlled tones and meters.
Confirm webcam and microphone access, inspect negotiated resolution and frame rate, and watch a relative level meter.
Every diagnostic runs entirely in your browser. Sensor data, key events, pointer movement and media streams are processed locally and are not uploaded to any server. Use the focused tools below for deeper inspection of a single device category.