Device & Browser Tests
Check keyboard, mouse, touch, display, microphone, speakers and camera with private local browser tests.
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Free. No sign-up required.Device & Browser Test Workspace
Ten browser tests in one private workspace.
Open workspaceKeyboard Tester
Check detected keys, held states and repeat events in a focused keyboard test area.
Open toolMouse, Button & Wheel Tester
Check primary, middle and secondary buttons, movement and wheel events in a dedicated test area.
Open toolTouchscreen Tester
Draw touch and pen traces and inspect simultaneous pointer contacts locally.
Open toolDisplay Colour & Dead-Pixel Test
Inspect your display manually with solid white, black, red, green, blue and grey patterns.
Open toolGradient Test
Inspect greyscale and colour gradients, direction and intentional band steps on your display.
Open toolScreen & Viewport Information
See browser-reported screen size, viewport dimensions, pixel ratio and display preferences.
Open toolMicrophone Test
Check microphone input with a live waveform and relative peak and RMS levels, without speaker monitoring.
Open toolStereo Speaker & Headphone Test
Play a quiet test tone through the left, right or both browser output channels.
Open toolWebcam Test
Check a live camera preview and the settings delivered by your browser without recording or uploading.
Open toolScreen Light
Use a steady white, warm or cool screen light with adjustable preview brightness and optional fullscreen.
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