How to fix a keyboard typing double letters on Mac
Tyyping like thiss? A worn key is sending two presses for one.
Short answer
macOS has no filter for keys that bounce. MacFixes ignores the accidental second press.
What macOS gives you
Accessibility → Keyboard has Slow Keys, which delays every key and makes normal typing sluggish. Key repeat settings don’t help with a key that bounces.
How MacFixes fixes it
- 1Add the fixOpen MacFixes Settings → Keyboard and add “Key repeat filter”. Fixes are off until you add them.
- 2Allow Accessibility and Input MonitoringmacOS asks for both so MacFixes can see and drop the repeated press.
- 3Set the windowChoose how close together two presses of the same key must be to count as a bounce: 20 to 120 ms, 40 ms by default.
This is one of 28 fixes in MacFixes.
Something else your Mac won’t do? Request it — we build it.
Questions
Will it block double letters I mean to type?
No. A bounce arrives within a few dozen milliseconds; typing “ll” on purpose is far slower, so it comes through.