The dock, an iconic Mac feature, is used to launch apps, switch between them, and as a hub for displaying key apps and minimized windows while they're open. By default, the dock has a clean look and features a few apps that your computer thinks you might want to use. However, you can get a lot out of customizing your dock, like removing the icons for default Apple apps you don't use. You can also change its placement and its look. Here's what you need to know to do just that, plus a bit extra.
Remove apps you're not going to use
Credit: Pranay ParabRemove from Dock. You can also ensure apps that are only in the dock temporarily (which appear on the right side of the dock, next to a separator) stay there by right-clicking them and selecting Options > Keep in Dock.
Change the size of the dock
You can also adjust your dock's size. Hover your mouse cursor over any of your dock's separators (those vertical dividing lines). The cursor will change to an arrow that points up and down. Drag it towards the top of the screen to make the dock larger or drag it downwards to make it smaller.
Desktop & Dock and moving the Size slider.
This option is also available in System Settings > Desktop & Dock > Position on screen.
Automatically hide and show the dock
Credit: Pranay ParabDesktop & Dock > Automatically hide & show the dock. Alternatively, you can use the keyboard shortcut Command-Option-D to toggle this setting on and off.
Desktop & Dock and disabling Show suggested and recent apps in Dock. I prefer this feature on, to help me navigate commonly used apps, but if you're short on screen space, it could be useful.
Move minimized windows into the app icon
Desktop & Dock and select Minimize windows into application icon. To access a window that's been minimized into an app icon, right-click it.
Hide indicators for open apps
Credit: Pranay ParabDesktop & Dock and disable Show indicators for open applications.
Desktop & Dock.
To enable or disable enlarging icons, use the slider below Magnification. Moving the slider all the way to the left switches off magnification, while moving it elsewhere will adjust magnification size. Fun tip: If you have this feature disabled, you can temporarily activate it on command by holding Shift + Control.
Add folders to the dock
Credit: Pranay ParabHere's the fun part: you can use this trick to group a bunch of apps into a single dock icon, which is great when you have a few apps that you want to keep in the dock, but you don't need them every single day. The trick is to go to the Applications folder in Finder and move the apps to a new folder. Just give the folder a name, move it to the Favorites Bar, and add it to the dock. You're all set!
defaults write com.apple.dock persistent-apps -array-add '{tile-data={}; tile-type="spacer-tile";}' && killall Dock
defaults write com.apple.dock persistent-apps -array-add '{"tile-type"="small-spacer-tile";}' && killall Dock
Change app icons to make the dock more visually pleasing
You can also customize the dock by simply changing various app icons. This can make it look more pleasant or help it fit a particular theme. The best way to do this is to open your favorite apps and see if they let you change their app icons. If not, check out my guide on replacing macOS app icons, which highlights both a built-in method and one third-party app that makes it easier to change app icons. For alternative icons, a good resource is macOSicons.com.
Use third-party apps to access hidden dock settings
Credit: Pranay ParabTinkerTool also makes it easier to add spacers to the dock, and it even allows you to lock the dock, so that the positions of icons and spacers can't be changed. Supercharge, meanwhile, has a feature that directly opens dock folders in Finder, instead of showing their contents right in the dock.
Use a dedicated dock customization app
If your goal is only to tweak the dock and nothing else, you may be better-served by a dedicated dock customization app. This type of an app will allow you to make cosmetic and functional changes to the dock, but won't be useful if you want other systemwide tweaks. Two good examples are DockFlow ($5.60) and uBar ($30). DockFlow lets you create presets for your dock. You can think of it like creating various profiles such as work, gaming, education, social media, etc. For each of these presets, you can drop a few apps into them and quickly switch between them as needed. uBar, meanwhile, focuses on making the dock look like the Windows taskbar, which could be useful if you're moving operating systems.
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