🎮 Device Tests
Test your controller, keyboard, mouse, microphone, webcam, speakers and screen right in your browser.
Black ScreenA full-screen solid color, one click away. Use it to clean your screen, check backlight bleed, or dim a display.Controller TesterCheck buttons, triggers, stick drift and rumble on any PlayStation, Xbox, Switch or PC controller, then share a health report.Dead Pixel TestCycle full-screen colors to find dead, stuck and hot pixels, record where they are, and try to revive stuck ones.Hearing TestFind your upper frequency limit in about a minute, ear by ear, and see how it compares with typical hearing at your age.Keyboard TesterPress your keys to see which ones work, catch keys that type twice, and measure how many keys register at once.Microphone TestCheck that your mic works, hear how you sound, and get a plain-English diagnosis of level, noise, clipping and Bluetooth problems.Mouse TesterCheck that every button and the scroll wheel work, catch a mouse that double clicks on its own, and measure its polling rate.Reaction Time TestClick the moment the box turns green, or race the F1 start lights, and see how your reflexes compare.Refresh Rate TestSee your display's real refresh rate, frame timing and dropped frames, then compare motion at different frame rates.Speaker & Headphone TestCheck that each speaker or earcup works, find how deep your bass goes, and catch swapped or out-of-phase wiring in a minute.Tone GeneratorPlay a precise frequency or musical note, layer up to three tones, sweep between frequencies, and save exactly what you hear as a WAV file.Webcam TestSee your camera's real resolution and frame rate, get a lighting and focus score with concrete fixes, and check it's ready for calls and online exams.