Keyboard Tester
Check that every key registers.
Press any key — it lights up below and its details appear. Keys stay green once tested so you can confirm every one registers.
This free keyboard tester lets you check that every key on your keyboard registers. Press a key and it lights up on the on-screen QWERTY layout while the tool shows the key value, physical code and legacy keyCode. Tested keys turn green so you can quickly find one that isn't responding — useful for diagnosing sticky or dead keys and modifier issues. Everything runs in your browser and nothing is recorded.
Related tools
JSON Formatter
Format, beautify & validate JSON data.
Base64 Encoder / Decoder
Encode and decode Base64 text instantly.
URL Encoder / Decoder
Percent-encode and decode URLs safely.
Regex Tester
Test regular expressions with live match highlighting.
JWT Decoder
Decode JWT header and payload claims.
Timestamp Converter
Convert Unix timestamps to dates and back.