Follow the below mentioned steps to increase the font size of the editor in Xcode
Go to Xcode >> Preferences.
Click the Themes tab.
Choose your theme.
In the right hand pane, press Command + A to select all options in the Source Editor.
![](https://studyraft.com/wp-content/uploads/2022/09/image-45-1024x509.png)
Click the font icon and select the font size you want to keep.
![](https://studyraft.com/wp-content/uploads/2022/09/image-47-1024x618.png)
Close the window. You are done with increasing the font size of editor in Xcode.