How to Always Show File Extensions in MacOS
![](https://howchoo.com/wp-content/uploads/2023/12/always-show-file-extensions-in-macos-jpeg.webp)
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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.
1 – Open a Finder window
![](https://howchoo.com/wp-content/uploads/2023/12/1-arrow-to-finder-in-macos.jpeg)
At the bottom-left of your dock, click on the Finder icon.
2 – Open Preferences
![](https://howchoo.com/wp-content/uploads/2023/12/2-finder-preferences-jpeg.webp)
Go to Finder > Preferences.
3 – Select “Show all filename extensions”
![](https://howchoo.com/wp-content/uploads/2023/12/3-select-show-all-filename-extensions.png)
Make sure that “Show all filename extensions” is checked. Now, you should always see file extensions in macOS.