How to Always Show File Extensions in MacOS

Doing this saves you loads of time in the long run!
Zach Zach (249)
1 minute

As a website designer, I work with a lot of files—and a lot of file types. Nothing's worse than wasting time trying to fix a problem caused by an overseen missing file extension.

Here are the three easy steps to always show file extensions in macOS.

Posted in these interests:
h/macos57 guides
h/mac92 guides
h/finder3 guides
Arrow to Finder in macOS

At the bottom-left of your dock, click on the Finder icon.

Finder Preferences

Go to Finder > Preferences.

Select "Show all filename extensions"

Make sure that "Show all filename extensions" is checked. Now, you should always see file extensions in macOS.

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Zach Zach (249)
5 minutes

I always keep an eye on my MacBook's battery percentage—especially since, as a developer, I run a lot of resource-intensive applications.