Scrivener

For writing. And writing. And writing.

Scrivener is certainly not for everyone, but if you write long-form texts and need a place where you can outline, collect thoughts, organize, reorganize, and publish your writing in various ways, it might be the text editor you have been looking for. Its development has slowed down quite a bit, but it's a really mature product.

www.literatureandlatte.com/scrivener/