Syncing C# files between MonoDevelop and Unity

Since Unity and MonoDevelop are separate applications, Unity will keep MonoDevelop synchronized with itself. This means that if you add, delete, or change a script file in one application, the other application will reflect the changes automatically.

It is possible to also choose another code editor if we want to. For example, web developers can keep using their favorite editor if they choose to do so. If you feel more comfortable using another code editor, you can do it by following these steps:

1. Go to the Preferences menu that can be found under the Unity tab on Mac, or the Edit tab on Windows
2. Select External Tools:

1. Under the External Script Editor option, you can browse for the application that you want to use as the code editor: