All online tests

Measure your words per minute and accuracy with a timed typing challenge.

See how many clicks per second you can produce over several test durations.

Measure visual reaction speed across five rounds and track your average.

Count spacebar presses and test your tapping speed on desktop or mobile.

Check individual keys, key codes, and rollover directly in your browser.

Detect unintended double-clicks and inspect the timing between mouse clicks.

Confirm microphone access, input level, and live audio activity privately.

Preview your camera, inspect resolution, and capture a private test frame.

Estimate your display refresh rate and frame time from the browser.

Inspect your screen in full-screen solid colors for stuck or dead pixels.