FastKey
Caps Lock, minus the delay
FastKey is a Mac utility for you if quick Caps Lock taps often go unregistered. It removes the built-in delay so you can change case without slowing your typing.
by Mohammad Aljarad
What you get
Make your quick Caps Lock taps register without pausing your typing.
If you tap Caps Lock quickly, macOS can ignore the press because of its built-in 75 ms delay. FastKey removes that delay, so you can toggle Caps Lock without holding the key longer or correcting text after a missed tap.
You get the same response on your built-in, USB, or Bluetooth keyboard. Once enabled, the adjustment is reapplied after sleep, restarts, and keyboard changes, with checks to confirm it remains active. You can use Tap Test to compare your actual Caps Lock presses with the number that registered on your keyboard.
You stay in control of the change: switch it off from the menu bar, or restart without FastKey, to restore the normal behavior. Nothing is changed permanently. You also don't need an account, and Tap Test observes only Caps Lock—not the rest of what you type.
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Fewer missed toggles
You can tap Caps Lock quickly without macOS filtering out the press through its built-in delay.
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Less repeated setup
You keep the adjustment after sleep, restarts, and keyboard changes without manually applying it again.
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Check your own results
You can compare Caps Lock presses with registered taps using Tap Test.
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Return to normal anytime
You can disable the adjustment from the menu bar or restart without FastKey, with no permanent changes.
Best for
- You type quickly and miss Caps Lock toggles
- You switch between built-in and external keyboards
- You want a reversible fix for the Caps Lock delay
Skip it if
You don't need it if you rarely use Caps Lock or your quick taps already register reliably.
Screenshots
From the developer
FastKey is a Caps Lock delay fixer for Mac. macOS ignores quick taps on purpose, thanks to a hidden 75 ms delay, so you end up retyping sentences. FastKey switches that delay off, so every tap registers.Read the full description
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