Online hardware and device tests in one browser
Test controller drift, keyboard chatter, microphone spectrum, headphone channels, cameras, capture cards, GPU capability and network paths for free. Every tool clearly states what a browser can and cannot measure.
Input devices
Buttons, keys, sticks and physical switch behavior
Run a free controller test online for gamepad buttons, analog sticks, triggers, drift, deadzone, circularity, vibration and browser-observed report rate.
Open tester →KeyboardOnline keyboard test for keys, chatter and rolloverTest Mac or Windows keys, double typing and chatter, browser-observed rollover and ghosting clues, repeat behavior, scheduling delay and CPS.
Open tester →Audio
Microphone input, headphone output and listening checks
Test a microphone online with private local RMS and peak dBFS meters, clipping, noise floor, waveform, frequency spectrum, spectrogram and input settings.
Open tester →HeadphonesHeadphone and speaker sound testTest headphones and speakers online with left-right channel checks, music samples, perceived delay, spatial panning and a safe frequency generator.
Open tester →Video
Private browser previews for cameras and capture cards
Test your webcam online with private local preview, camera selection, actual resolution, browser-observed FPS and jitter, mirror, snapshot and display controls.
Open tester →Capture CardUSB capture card browser previewPreview a USB UVC capture card in the browser, select video and audio inputs, inspect actual resolution and FPS, take a snapshot, then continue in Jemdo Capture Studio.
Open tester →System and network
Browser-visible hardware, graphics, IP and reachability
Inspect browser-visible CPU threads, approximate memory, GPU renderer, WebGL limits, display properties and a lightweight rendering benchmark.
Open tester →IP & NetworkPublic IP, location and browser network testCheck your browser's public IP, approximate location, IPv4 and IPv6 paths, connection hints, and Google or gaming-platform web reachability.
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