The Dock is a handy application launcher, but its organizational skills are a bit lacking. You can rearrange Dock icons to get them in the order you want, but that's about it. When you have a Dock full of icons, it's easy to get visually lost and waste time hunting through the Dock for a specific icon.
How to Add Spacers to the Dock on Mac
The Mac Dock, however, allows for the use of spacers, which are empty areas between Dock icons that you can use to better organize the Dock. The trick to creating these empty spacers with Terminal is well-known, but you can also create custom icons to use as Dock spacers.
Both methods for creating and using Dock spacers with your Mac are useful for grouping icons. You might want to group your work apps, media apps, browsers, or any other category that works for you. Adding a visual space between each category will help you find the groups at a glance.
What the Dock needs are visual cues to help you organize and find Dock icons. The Dock already has one organizational cue: the vertical line separating the right and left sides of the Dock. The larger left side contains applications and system items, while the smaller right side contains the Recycle Bin, minimized windows, documents, and folders. If you have a lot of icons on the Dock, it could probably benefit from additional dividers.
