Free • Private • Browser-based

Check your devices in one polished browser hub.

Check your keyboard, mouse, gamepad, screen, microphone, webcam, and speakers with clean real-time tools. No installation and no account required.

7device tests

10languages

0downloads required

Seven polished device tests

Pick a tool and get readable live data, guided steps, and an honest result.

Keys, modifiers, repeat, rollover, and recent keystrokes in real time.

Check buttons, scrolling, movement, double-clicks, and click speed.

Inspect buttons, sticks, triggers, deadzone, drift, and vibration.

Find dead pixels, banding, contrast issues, ghosting, and uneven color.

See live input levels, waveform, device details, and make a test recording.

Preview your camera, check resolution, frame rate, mirroring, and snapshots.

Test left and right channels, tones, frequency range, and stereo balance.

Open the tool for the device you want to inspect.

Camera and microphone tools request browser permission. Other tests need no permission.

Follow clear indicators and troubleshooting notes. No account is required.

DeviceCheck avoids fake precision. It shows values your browser can actually provide and labels estimates clearly.

Local-first processingAudio and video previews stay in the browser unless you explicitly download a result.

Desktop and mobileResponsive controls work with mouse, keyboard, touch, and supported hardware.

Clear limitationsUnsupported features are disabled instead of displaying invented measurements.

Does DeviceCheck upload my camera or microphone data?

No. Live testing and recordings are processed in your browser. A recording leaves the page only if you download it yourself.

Why does a test ask for permission?

Browsers require permission before a website can access a microphone or camera. DeviceCheck requests access only after you press the start button.

Can a browser detect every hardware problem?

No. These tools help reveal common issues, but they cannot replace physical inspection, calibrated equipment, drivers, or professional repair.