Device Tests
Something feels off with your hardware? These free device tests let you check the most common parts of your setup in seconds, directly in your browser. No download, no sign-up, and nothing is uploaded: camera and microphone tests run entirely on your own device.
8 free tools
All 8 device tests
Keyboard Tester
Find dead, stuck or double-typing keys and check ghosting.
Mouse Tester
Test every button and the wheel, and detect double-click faults.
Microphone Test
See a live volume meter and record a clip to hear yourself.
Webcam Test
Live preview with resolution, frame rate and snapshots.
Left/Right Speaker Test
Check left/right channels, stereo and bass-to-treble range.
Dead Pixel Test
Fill the screen with solid colors to find dead or stuck pixels.
Refresh Rate Test
Find out if your screen really runs at 60, 144 or 240 Hz.
Gamepad Tester
Check buttons, triggers and analog stick drift on any controller.
Which test do I need?
- A key doesn't type, or types twice: use the Keyboard Tester.
- Your mouse double-clicks by itself: the Mouse Tester detects double-click faults automatically.
- People can't hear you on calls: try the Microphone Test and record a short clip.
- Your camera shows a black image: the Webcam Test shows resolution and frame rate too.
- Sound only comes from one side: run the Left/Right Speaker Test.
- You see a tiny dot on a new monitor: check it with the Dead Pixel Test.
- Your 144 Hz monitor feels like 60 Hz: measure it with the Refresh Rate Test.
- Your character moves on its own in games: check stick drift with the Gamepad Tester.
Are these tests safe and private?
Yes. Every test uses standard browser features. When a test needs your camera or microphone, your browser asks for permission first, and the audio or video never leaves your computer. You can revoke access at any time in your browser's site settings.