[01] Online editor
StackEdit
StackEdit is a free and open source Markdown editor based on PageDown (a library used by Stack Overflow). This editor can create and manage multiple documents, which are stored locally. Also, it can import/export from Google Drive or Dropbox and save documents as HTML files.
EpicEditor is an embeddable js Markdown editor with full-screen editing, instant preview, auto-save drafts, and offline support. demo
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