Device Tests
Check your webcam, microphone, keyboard, gamepad, screen and reaction time. Useful before a call or after buying hardware — the camera and mic streams are previewed locally and never recorded.
Webcam TestTest your webcam in the browser: live preview, resolution, frame rate and device name, with mirror toggle and camera selection. Runs 100% locally — nothing is recorded or uploaded.Mic TestTest your microphone in the browser with a live level meter and waveform, plus device name and sample rate. Audio is analyzed locally — nothing is recorded or uploaded.Keyboard TestPress any key to see event.key, event.code and keyCode, with a press history and per-key counters. Great for finding broken keys. Runs locally — no keystrokes are recorded or sent.Gamepad TestTest any game controller in the browser: live button presses, analog trigger values and stick axes shown as bars. Works with Xbox, PlayStation and generic pads. Runs locally — nothing is recorded or uploaded.Dead Pixel TestCheck your screen for dead or stuck pixels with fullscreen solid colors — white, black, red, green, blue and more. Click to cycle colors, Esc to exit. Runs locally — no data is collected or uploaded.Click Speed TestMeasure your clicks per second (CPS) over 1 to 100 seconds with a live timer, click counter and best-of-session score. Runs entirely in your browser — nothing is recorded or uploaded.Reaction Time TestMeasure your reaction time in milliseconds: wait for red to turn green, then click as fast as you can. Five rounds with per-round results and average. Runs locally — nothing is recorded or uploaded.