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Change macOS Dock icon size ​

Set the icon size of Dock items in pixels.

  • Tested on macOS:
    • Sonoma
    • Ventura
    • Monterey
    • Big Sur
    • Catalina
  • Parameter type: int

Set to 36 ​

Dock icon size of 36 pixels.

bash
defaults write com.apple.dock "tilesize" -int "36" && killall Dock

Example output with value set to 36

Set to 48 (default value) ​

Dock icon size of 48 pixels.

bash
defaults write com.apple.dock "tilesize" -int "48" && killall Dock

Example output with value set to 48

Read current value ​

bash
defaults read com.apple.dock "tilesize"

Reset to default value ​

bash
defaults delete com.apple.dock "tilesize" && killall Dock

Set value from UI ​

  1. Access Dock settings from macOS UI
  2. Slide "Size" range value