It has these features:

1. Realtime preview and use snabbdom as it's render engine. 2. Support CommonMark Spec and GitHub Flavored Markdown Spec. 3. Support paragraphs and inline style shortcuts to improve your writing efficiency. 4. Output HTML and PDF file. 5. Multiple themes. 6. Various edit mode: Source Code mode、Typewriter mode、Focus mode.

Hope you love it!

https://marktext.github.io/website/

https://github.com/marktext/marktext