Free · no signup · browser-local
Keyboard & Chatter Test
See key codes, held-key combinations and rapid repeated presses.
Click the area below, then press keys. Tab moves focus away.
Ready for your keyboard
Held simultaneously: —
Unique keys: 0 · Auto-repeat: 0 · Rapid presses under 80 ms: 0
Getting started
Focus the test area and press keys; normal auto-repeat is tracked separately.
Before you use the result
OS shortcuts and browser-reserved keys may not reach this page.
Frequently asked questions
See key codes, held-key combinations and rapid repeated presses.
How do I use Keyboard & Chatter Test?
Focus the test area and press keys; normal auto-repeat is tracked separately.
Does this tool upload my data?
Inputs and files are processed in your browser. Page-view analytics do not contain your tool input.
What should I check before using the result?
OS shortcuts and browser-reserved keys may not reach this page.