Skip to content
Runs privately in your browser

Free Online Keyboard Key Tester

Focus this tool and press keys to inspect key, code, modifier flags and repeat state. No key events outside this interface are recorded. This interface works locally in your browser.

Your input stays on this device. Processing is bounded; regex runs in a worker with a two-second timeout.

Result

How to use Keyboard Key Tester

Focus this tool and press keys to inspect key, code, modifier flags and repeat state. No key events outside this interface are recorded. This interface works locally in your browser.

  1. Set Text.
  2. Run the tool, review the result and its stated limitations, then copy or download if needed.

Example & practical use

Focus this tool and press keys to inspect key, code, modifier flags and repeat state. No key events outside this interface are recorded. This interface works locally in your browser. The example below demonstrates Text.

Example input:
{
  "text": "Focus here, then press a key"
}
Result: A generated result whose value varies on each run.

Features & result limitations

Focus this tool and press keys to inspect key, code, modifier flags and repeat state. No key events outside this interface are recorded. This interface works locally in your browser.

Frequently asked questions

What inputs does Keyboard Key Tester accept?

Text

How should I interpret the Keyboard Key Tester result?

Focus this tool and press keys to inspect key, code, modifier flags and repeat state. No key events outside this interface are recorded. This interface works locally in your browser.

Where does Keyboard Key Tester process my data?

Inputs are processed locally in your browser. Submitted text is not sent to external services. A successful-run event increments an aggregate tool counter without your input.