Test your devices in seconds
Free, quick checks for the hardware you rely on every day. Each test runs entirely in your browser: no downloads, no account, and nothing is uploaded.
Tests
- Mic TestCheck that your microphone works, watch live input levels and record a short sample.
- Keyboard TestPress every key to find dead, stuck or double-typing keys and check how many keys work at once.
- Camera TestCheck your webcam or phone camera, see its real resolution and frame rate, and take a snapshot.
- Speaker TestCheck left and right speakers or headphones, run bass and full-range sweeps, and generate test tones.
Why use these tests
Private by design
Audio, video and input data are processed on your device. Nothing is sent to a server.
Clear answers
Every test tells you in plain words whether something works, and what to do if it doesn’t.
Works everywhere
Windows, Mac, Chromebook, iPhone and Android, in any current browser. Nothing to install.