Notepad++ has a feature where you simply right click on a text and select "hide lines", for example a base64 encoded jpeg in a markdown file, which is a large blob of text.
I have not encountered one gui text editor in linux that has the same feature, and I have looked a lot. Most editors can hide snippets of code with opening and closing brackets, but not a simple line of text.
Maybe you know one? Thanks. (GUI preferred, but I also take vim or emacs with some plugin?)
@Marcus Müller: I want to hide elements of text (like a base64 image wall of characters) that distract me when editing markdown files. This is different from code folding (like markdown headers/chapters). I took a look at that wikipedia site with the text editor comparison and sublime text does support that feature:
So for now I am somewhat happy. Most of the editors that allegedly support text folding according to the wikipedia site do not support that feature though. As you rightly point out code folding and text folding are two pairs of shoes.