SubEthaEdit is still around and open source. It supports Markdown side-by-side view along with numerous other languages. Excellent lightweight (26mb, native) ed

SubEthaEdit is still around and open source. It supports Markdown side-by-side view along with numerous other languages. Excellent lightweight (26mb, native) editor, available directly via the macOS store at no cost. https://subethaedit.net https://subethaedit.net