MultiMarkdown Composer VS StackEdit

First off, CriticMarkup is an "extension" to Markdown with syntax for addition, deletion, substitution, comment, and highlight. Knowing this might help you find tools which support it. I know MultiMarkdown Composer on Mac is one such tool. Source: almost 2 years ago

It is closer to Multimarkdown. As a pandoc GUI, it should be compared to PanWriter which is open-source is grown from within the pandoc community, where you can contribute to make it better. Also try the VSCode extension vscode-markdown-it-pandoc which applies the markdownit extension in PanWriter to VSCode’s markdown extension. Source: over 2 years ago

To those comparing to other softwares: It is closer to [Multimarkdown](https://multimarkdown.com/). As a pandoc GUI, it should be compared to [PanWriter](https://panwriter.com) which is open-source is grown from within the pandoc community, where you can contribute to make it better. - Source: Hacker News / over 2 years ago

Alternatively, you can use an online markdown editor like StackEdit or HackMD. - Source: dev.to / 3 months ago

Use https://stackedit.io/ in the browser :). Source: 5 months ago

Markdown is awesome! But, when writing 1000 words+ articles, I quickly feel the need for a better experience. For years, I’ve used StackEdit — an open-source, in-browser Markdown editor — for editing all kinds of long-format Markdown text. That said, given my recent experience with WYSIWYG editors, I thought I could do something better. - Source: dev.to / 9 months ago

This is especially annoying as when I export from stackedit.io to HTML, then it just cuts off anything which is outside the greyed in code window! Source: 9 months ago

StackEdit[0] pretty much perfected what I needed out of a markdown editor - I just need somewhere to write my tickets/docs that wasn't Github so that I could format it properly while writing. I still use it from time to time [0]: https://stackedit.io/. - Source: Hacker News / 10 months ago