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Keyboard

SOCD & Snap Tap Test

Observe the order of opposite direction key-down and key-up events.

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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.

SOCD & Snap Tap Test

The test loads when you open it. Device access is requested only after you choose to start.

Detailed guide

How to use this tool

  1. Press A, then D while A remains held.
  2. Reverse the order and examine key-down and key-up events.

Output

Held keys; transitions; repeat intervals

Input

Focused physical key presses

Browser requirement

KeyboardEvent.code; keydown and keyup

Processing

Runs on your device; no tool-result upload

How it works and what the result means

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.

Reading the result

The log shows opposing direction events received by the browser. Firmware may resolve or filter simultaneous inputs before delivery.

What to check next

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.

Frequently asked questions

Does this certify Snap Tap or SOCD legality?

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.

How do I start the SOCD & Snap Tap Test?

Click the test area to focus it, then press and release the keys you want to inspect. Try simultaneous combinations for a ghosting check.

Does this tool require a download or an account?

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.

Why can two attempts give different results?

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.