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Keyboard Tester

Test all keyboard keys and detect simultaneous key presses. Pressed keys are highlighted on a visual keyboard layout.

Press any key
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F1
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How to Use

Step 1

Open Test Page

Open Test Page

Open the keyboard tester page and activate the test area

Step 2

Press Keys

Press Keys

Press the keys you want to test and watch the on-screen keyboard react in real time

Step 3

Check Results

Check Results

Review key codes and response status in the log

Features

Visual Keyboard

Pressed keys are highlighted on the on-screen keyboard

N-Key Rollover Detection

Test the number of simultaneous key presses (rollover) your keyboard supports

Key Code Display

Shows KeyCode, Key, and Code values for each key in real time

FAQ

Supports major layouts like US and JIS. Key codes are obtained from browser events, so it works with almost any keyboard.