Mac System Preferenes Dock Icon

The Dock comes in handy as a Mac application launcher, but sometimes it’s too big or too small. Luckily, there are two ways to resize the Dock on your Mac—including one easy way that many people don’t know about. Here’s how to quickly resize your Dock in macOS.

How to Quickly Resize the Dock Using the Mouse Pointer

First, here’s the quick-and-easy way to resize your Dock. While viewing your desktop, hover your mouse pointer over the vertical divider in your Dock, which is located between the app icons area and the file shortcuts and Trash area. In the right spot, your mouse pointer will change into an up-and-down “Resize” arrow.

In macOS, hover your mouse pointer over the divider line in the Dock until it changes into a resize arrow.

When your pointer looks like the up-and-down symbol, hold your primary mouse or trackpad button and drag your pointer away from, or toward, the edge of the screen to change the size of the Dock.

If you move your pointer away from the screen edge, the Dock will get larger until it hits the maximum allowed size.

A large Mac Dock

If you move your pointer toward the edge, the Dock will shrink until it reaches its minimum size.

A teeny-tiny Mac Dock.

And, you can adjust the Dock’s size to any point between the two extremes.

A small Mac Dock.

When you’re done, just release the mouse or trackpad button, and the Dock will remain the size you just set.

How to Resize Your Dock Using System Preferences

To change your Dock size the traditional way (using System Preferences), right-click or Control-click on an empty area of the Dock near the divider line and select “Dock Preferences” from the menu that pops up.

On a Mac, right-click the Dock and select "Dock Preferences"

In Dock Preferences, use the “Size” slider to change the Dock’s size on your screen.

In Dock Preferences on Mac, use the "Size" slider to change the size of the Dock.

When you’re done, exit System Preferences and your Dock size will remain that size until you change it again. Very handy!

Benj Edwards Benj Edwards
Benj Edwards is a Staff Writer for How-To Geek. For over 14 years, he has written about technology and tech history for sites such as The Atlantic, Fast Company, PCMag, PCWorld, Macworld, Ars Technica, and Wired. In 2005, he created Vintage Computing and Gaming, a blog devoted to tech history. He also created The Culture of Tech podcast and regularly contributes to the Retronauts retrogaming podcast.
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