When Apple release Xcode 8 in 2016 they also released their take on Xcode plugins, called Extensions.
Getting started with extensions isn’t that hard, but they’ve hidden them away in the Settings app.
To start, download any Xcode extension from the App Store or GitHub, you can for example find a list here of some popular extensions: https://theswiftdev.com/2016/08/17/xcode-8-extensions/
Once you have installed your extension you may find that it doesn’t show up in Xcode in the bottom of the Editor menu.
What you need to do is:
- Open the Settings app and click on the Extensions icon.
- Xcode Source Editor should appear in the list on the left side of the window. Select it.
- Check the box next to each extension that you want to enable.
- Restart Xcode if the new extensions doesn’t appear in the Editor menu.
You’re done!