Double-Tap Modifier

Double-tap a modifier key to summon Chapeta. No chord required.

Double-tap any modifier key (Command, Option, Shift, or Control) to toggle Chapeta. This is the fastest way to invoke Chapeta because you do not need to reach for a specific key combination. Just tap the same modifier key twice in quick succession.

How to Set Up

  1. Open Chapeta settings (gear icon or Cmd+,).
  2. Go to the General tab.
  3. Find the Double-Tap Modifier section.
  4. Select which modifier key to use: Command, Option, Shift, or Control.
  5. Grant Accessibility permissions when prompted (required for modifier key monitoring).

What You Get

Double-Tap Command

Tap the Command key twice quickly. Most popular choice since Command is the most reachable modifier.

Double-Tap Option

Tap the Option key twice quickly. Good alternative if Command double-tap conflicts with other tools.

Double-Tap Shift

Tap the Shift key twice quickly. Less common but avoids conflicts with most shortcuts.

Double-Tap Control

Tap the Control key twice quickly. Least likely to conflict with existing shortcuts.

Technical Details

Chapeta monitors modifier key events using an Accessibility-authorized CGEvent tap. It detects two presses of the same modifier within a 300ms window with no other keys pressed between them. This approach avoids false triggers during normal modifier+key shortcuts.

Requirements

  • macOS 14 (Sonoma) or later
  • Accessibility permissions (System Settings > Privacy & Security > Accessibility)
  • Only one modifier key can be configured at a time

FAQ

Try Double-Tap Modifier with Chapeta