Realtime Keyboard Diagnostic

Keyboard Tester

Pressed 0
Total 0
Last key -

Live Input

Press keys to inspect their physical position, code, key value, and repeat state.

Key -
Code -
Location -
Repeat No

Pressed Now

Useful for checking rollover behavior and stuck keys.

No keys are currently pressed

Event Log

Shows the latest 40 events.

    Realtime Mouse Diagnostic

    Mouse Tester

    Buttons 0
    Clicks 0
    Wheel 0

    Live Input

    Move, click, and scroll inside the test pad to inspect mouse behavior.

    X -
    Y -
    Movement 0 px
    Polling 0 Hz
    Average Polling 0 Hz
    Peak Polling 0 Hz
    Polling Source Detecting
    Last Event -
    Test Pad

    Buttons

    Button states update while pressed inside the test pad.

    Left
    Middle
    Right
    Back
    Forward

    Mouse Event Log

    Shows the latest 40 events from the test pad.

      Fullscreen Display Diagnostic

      Display Tester

      Pattern White
      Mode Windowed
      Size -

      Test Patterns

      Select a pattern, then use fullscreen for pixel, backlight, and geometry checks.

      White Use left/right arrows to change pattern. Press Esc to exit fullscreen.

      Motion And Refresh Diagnostic

      Refresh Rate Tester

      Current 0 Hz
      Average 0 Hz
      Frame Time 0 ms

      Motion Test

      Keep this tab focused. Fullscreen mode gives the cleanest refresh-rate estimate.

      Min 0 Hz
      Max 0 Hz
      Jitter 0 ms
      Frames 0
      Detected0 Hz
      HZ
      Reference A60 FPS
      60
      Reference B30 FPS
      30

      Stereo Audio Diagnostic

      Headphone Tester

      Mode Idle
      Frequency 440 Hz
      Volume 30%

      Channel Tests

      Start quietly, then test left, right, center, phase, and sweep behavior.

      Output Meter

      Shows intended signal routing, not measured acoustic output.

      Left
      Right

      Checks

      Use these quick checks to spot swapped channels and weak stereo imaging.

      LeftOnly left ear should play.
      RightOnly right ear should play.
      CenterSound should sit in the middle.
      PhaseOut-of-phase sound should feel wider or hollow.