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.
Compare Remarkable with alternatives
Compare StackEdit and Remarkable and decide which is most suitable for you.
Compare Hemingway Editor and Remarkable and decide which is most suitable for you.