Output
Held keys; transitions; repeat intervals
Observe the order of opposite direction key-down and key-up events.
SOCD & Snap Tap Test · At a glance
Quick answer: Observe the order of opposite direction key-down and key-up events. The log shows opposing direction events received by the browser.
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
Held keys; transitions; repeat intervals
Focused physical key presses
KeyboardEvent.code; keydown and keyup
Runs on your device; no tool-result upload
The tester records browser key-down and key-up events, tracks held keys, and separates operating-system repeats from fresh presses. Short intervals are clues to investigate, not proof of a defective switch.
The log shows opposing direction events received by the browser. Firmware may resolve or filter simultaneous inputs before delivery.
Keep the surface focused and repeat slowly. Compare the behavior in your game, which may apply its own movement rules.
System shortcuts and some special keys are intercepted before a web page receives them. USB polling frequency, analog actuation distance and physical rapid-trigger settings cannot be read from keyboard events.
No. It observes events and cannot certify firmware features or current competition rules. Check the rules of the game or event where you intend to use the setting.
Click the test area to focus it, then press and release the keys you want to inspect. Try simultaneous combinations for a ghosting check.
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.