TOOLS / KEYBOARD
Choose the right keyboard check
Pick the symptom you see. Each tool gives you a specific test and a next step based on the browser events it receives.
One tap produces two characters
Report one physical press and release per trial. Compare each report with the browser cycles received.
Open Single-tap trials ↗CHECK / 02A held key stops too soon
Hold one key through the visible cue, then compare your action with up and re-press events.
Open Hold and release ↗CHECK / 03A combination misses a key
Choose the exact positions, hold them together, and see whether the browser received the full overlap.
Open Selected chord ↗CHECK / 04A held key repeats oddly
Hold a repeat-capable key and inspect its first repeat delay, count and interval.
Open Repeat sequence ↗CHECK / 05The wrong character appears
Compare your intended character layout with the code and character received.
Open Active layout checker ↗CHECK / 06A shortcut or remap needs an exact code
Read the browser key, physical code, location and modifier state.
Open Keycode inspector ↗CHECK / 07Text was typed with the wrong layout
Convert text between the supported physical-position mappings.
Open Layout converter ↗START BROAD
Not sure which key or behavior?
The live keyboard tester records received keys, completed down/up cycles, held positions and browser timing as soon as you open it.
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If a result differs from your action
Repeat the same short test in another app. If available, compare a second keyboard or connection before changing settings. For accessibility and repeat behavior, consult your system’s keyboard settings.
Windows keyboard accessibility · Mac key repeat · Mac Slow Keys