Completely disable NSTextView spell checking

Question

How can I disable spell checking for an NSTextView? In particular, the red lines that are automatically drawn. I know about the \"Continuous Spell Checking\" option in Xcode

Answer 1

Select NSTextView (doubleClick in IB on it because NSTextView is in NSScrollView by default or select it in Document Outline) and go to Attributes Inspector -> Linguistics -> and uncheck Continous Spell Checking here:

Result: