Best use
Use it for a focused KeyCode Lookup task when a quick browser workbench is appropriate.
Press a key after JavaScript loads to inspect keyboard event details.
Keyboard KeyCode Tester
Press any key to inspect key, code, keyCode, modifier state, and copy the latest keyboard event.
How to use this tool
KeyCode Lookup: Paste input, load the sample if needed, choose an action, review the output, and copy the result.
Usage boundaries and result checks
KeyCode Lookup is for this task: Press any key to inspect key, code, keyCode, modifier state, and copy the latest keyboard event. It runs in the browser; start with a short, non-sensitive sample and confirm the behavior before processing more data.
Input
text, an encoded string, or the data format named by the tool
Output
an encoded, decoded, or compatibility-check result
Before reuse
For KeyCode Lookup: Confirm the character set, byte boundary, and target protocol. Encoding is not encryption. See the test method.