Test input devices, stereo audio, and monitor panels directly in your browser. No installation required.
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Keyboard Tester
Visual key detection, modifier checks, rollover and keypress counts.
Open keyboard test →◖))Speaker Tester
Quick three-note chime for left, right, or both speakers.
Open audio test →▣LCD / Monitor Tester
Fullscreen solid colors, grayscale, gradients, checkerboard and grid.
Open display test →Before you begin
These are visual and functional browser checks, not calibrated hardware diagnostics. Browser and operating system shortcuts may intercept certain keys. Display defects must be identified visually.
Camera & microphone checks
Test your webcam and microphone locally in your browser. Permission is requested only when you start a test; nothing is recorded or uploaded.
Open camera & microphone tester