Based on our record, TOAST UI Editor seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If you need a WYSIWYG markdown editor you can try Toast UI Editor or simply use Markdown Live add-on for Visual Studio Code. Source: almost 2 years ago
https://github.com/nhn/tui.editor Might be close to what you are after. - Source: Hacker News / over 2 years ago
CKEditor - Real-time collaborative future-ready rich text editor
TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.
Summernote - Summernote is a JavaScript library that helps users create WYSIWYG editors online.
Quill - Powerful, API-driven rich text editor
SCEditor - A lightweight WYSIWYG BBCode & HTML editor
Typora - A minimal Markdown reading & writing app.