Hardware Tools

A list of our Hardware tools. Nothing you enter is sent to a server; it is all processed in your browser.

• Microphone Test (Level & Recording)

  See your microphone input level live, detect clipping, and record a clip to play back. Handy before a call or stream.

• Keyboard Tester (Test Every Key)

  Press every key and see it light up on an on-screen keyboard so missed keys are obvious, with the key name and code shown.

• Dead Pixel Test (Screen Check)

  Fill the screen with a solid color to check a monitor or phone for dead pixels and uneven color, cycling through 9 colors with a click or the arrow keys.

• Gamepad Tester (Buttons, Sticks & Drift)

  Check every button, stick and trigger on your controller. Spot stick drift and try the rumble motors.

• Speaker Test (Stereo Check & Tone Generator)

  Check left and right channels on speakers or headphones, and play tones from 20 Hz to 20 kHz or a frequency sweep.

• Mouse Tester (Click Speed & Polling Rate)

  Measure click speed (CPS), check every mouse button, detect double-click chatter and estimate the polling rate.

• Screen Recorder

  Record your entire screen, a window or a browser tab right in the browser and save it as a video file. Nothing to install.

• Refresh Rate Test (60/120/144Hz)

  Measure your monitor or phone refresh rate in Hz from browser frame timing and see whether it is 60Hz, 120Hz, 144Hz and more.

• Touch Screen Test (Multi-Touch & Ghost Touch)

  Swipe the screen to check simultaneous touch points, drag trails, dead zones and ghost touches. Useful for diagnosing phone and tablet touch problems.

• Noise Meter (Sound Level in dB)

  Measure ambient noise in approximate dB with your microphone. Shows current, max and average levels, a graph and a noise guide. Nothing is recorded.

• Screen Ruler (cm / inch, actual size)

  Show an actual-size cm and inch ruler on screen. Calibrate it by matching the frame to a credit card; horizontal and vertical modes.

• Spirit Level

  Check if a surface is level with your phone’s tilt sensor. Bubble, angle and slope, plus zero-point calibration.

• Motion Blur & Frame Skip Test

  Check ghosting, motion blur and skipped frames with a moving object in full screen

• Monitor Gamma & Banding Test

  Check gamma, banding and black/white clipping on your monitor with fullscreen gray ramp, step and gamma checker patterns.

• Hearing Test (Mosquito Tone)

  Play high-frequency tones from 8 to 20 kHz to check your hearing range, with a rough age guide.

• Screenshot Capture

  Take a screenshot of your screen, a window or a browser tab in the browser and save or copy it as PNG. Delay timer included. No install needed.

• Device Info Viewer

  View screen resolution, DPR, CPU cores, memory, GPU, touch input and supported Web APIs, and copy the report.

• MIDI Device Tester

  Check MIDI keyboard and controller connections in your browser and watch notes, CC and pitch bend live