Downright is described as 'Native macOS Markdown reader and editor offering Document, Split, and Source views, Finder integration, customizable themes, real-time file tracking, and broad Markdown rendering' and is a Text Editor in the office & productivity category. There are more than 50 alternatives to Downright for a variety of platforms, including Mac, Windows, Linux, Web-based and iPad apps. The best Downright alternative is Typora. It's not free, so if you're looking for a free alternative, you could try ghostwriter or Clearly Markdown. Other great apps like Downright are Marknote, Ferrite, marka.md and Hemingway Editor.
A fully featured markdown editor for Linux. Features include Live Preview, PDF/HTML export, MathJax support, Syntax highlighting, customizable, keyboard shortcuts, GFM, images, tables and much more.
Paragraphs is an app just for writers. It was built for one thing and one thing only: writing. It gives you everything you need to create brilliant prose and does away with the rest.
Marxico is a neat Markdown editor that features :
code highlight, tables, images, attachments, LaTeX etc.
live preview, offline desktop client and Chrome App.
Evernote integration with notebooks & tags, two-way bind editing etc.
MultiMarkdown Composer is a text editor for Mac that is designed from the ground up around the MultiMarkdown Syntax. It is designed to make writing in MultiMarkdown even easier than it already is, with automatic syntax highlighting, built in previews, easy export to any format...
United States
Advanced text editor tailored for creating structured documents. Leverages Markdown to differentiate content and formatting, ensuring streamlined editing and publishing to a multitude of formats.
TextNut will convert your edits into markdown on-the-fly. If you are familiar with Markdown, it is add-on, with a powerful markdown editing mode.
PileMd has a really beautiful Markdown Editor, looks like Preview. It's like a RichText Editor but it's actually Markdown, and it works like a word processor, complete with Undo/Redo histories, list completion and clickable urls.
Japan
Write styled Markdown notes, sync across Mac, iPhone and iPad add to-dos and tags, export to a variety of formats and choose your favourite style from a variety of colourful themes.
United Kingdom
