Hardware Tests in Your Browser

Focused diagnostics for controllers, mice, keyboards, displays, and touchscreens — built to show what the browser actually detects.

18 browser tests · no install · no account · input stays on this device

Browser boundaryLocal observation

Gamepad TesterTest controller buttons, sticks, D-pad, and triggers.Controller Stick Drift TestMeasure observed analog-stick center offset while untouched.Controller Deadzone TestMeasure stick center noise and a heuristic starting deadzone.

Mouse TesterQuickly check browser-detected mouse buttons, wheel input, and movement.Mouse Button TestCheck primary, middle, secondary, Back/X1, and Forward/X2 button input.Mouse Scroll TestInspect browser-detected up, down, left, and right wheel events.Double Click TestLook for unusually fast repeated same-button presses.Mouse Polling Rate TestMeasure the pointer sample rate observed by this browser.Mouse DPI TestEstimate mouse DPI from net browser movement over a measured physical distance.

Keyboard TesterPress keys and see which physical key codes the browser detects.Keyboard Rollover TestSee the largest simultaneous key set this browser detects.Keyboard Ghosting TestCompare guided key combinations with the keys detected together.

FPS TestObserve this browser page’s frame delivery and recent sampled FPS range.Refresh Rate TestEstimate the display cadence currently visible to the browser.Frame Skipping TestUse a camera-assisted pattern to look for repeatable skipped-refresh gaps.Dead Pixel TestInspect the screen against solid colors for dead or stuck pixels.Backlight Bleed TestInspect a backlit display for bright leakage on a black screen.

Touch Screen TestMap browser-detected finger coverage, multi-touch, and unexpected touch input.