StackEdit
Open Source
StackEdit is a full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
Hemingway Editor
Commercial
Hemingway Editor is a proofreading tool for writers.
Gingko
Freemium
Gingko lets you shape your ideas with lists, outlines and cards, all in the same clean interface.
Compare MarkdownPad with alternatives
Compare StackEdit and MarkdownPad and decide which is most suitable for you.
Compare Hemingway Editor and MarkdownPad and decide which is most suitable for you.