Untested
Tested
Pressed
Low Latency
Privacy
Free Online Keyboard Tester
No drivers or software required. Using modern browser high-precision APIs to present the most authentic keyboard performance data.
N-Key Rollover Test (NKRO)
Real-time visual key conflict detection. Supports 6KRO & NKRO testing. Verify if your mechanical keyboard has ghosting or key loss under complex operations.
Chatter / Double Click Detection
Mechanical switches double clicking? Our high-sensitivity chatter detection algorithm precisely identifies every abnormal secondary trigger to help you judge switch life.
A
A
S
Low Latency Detection
Precise measurement of system-to-browser input latency based on event timestamps, optimizing for gaming.
Privacy & Security
All tests are performed locally in your browser. We do not record your key content or upload any input data.