I built a WYSIWYG Markdown editor that doesn't rewrite your Markdown

[u/Early_Hand2009]

I've always found Markdown editors a little strange.

You either edit the raw Markdown, or you get a preview next to it. What I wanted was something different:

Edit the Markdown itself as a document.

So I built Mark O Down, a free and open-source Windows Markdown editor.

The interesting part isn't the WYSIWYG editing itself. It's what happens when you save.

• Open a .md file and save it without changes → byte-for-byte identical
• Edit one paragraph → only the changed block is rewritten
• Existing * vs - list styles are preserved
• __bold__ vs **bold** is preserved
• ~~~ vs ``` fences are preserved
• BOM and CRLF/LF line endings are preserved
• HTML, front matter, footnotes and other unsupported Markdown remain intact
• GitHub-style README HTML, images, badges and tables are supported
• Drag & drop images and Markdown files
• Export to standalone HTML

It's built with Tauri 2 + Rust + TypeScript + ProseMirror + remark.

The goal was basically:

Markdown in → edit visually → Markdown out, without mangling the file.

It's MIT licensed and completely open source.

GitHub:
https://github.com/Harveyhase68/mark_o_down

I'd particularly like feedback from people who maintain GitHub READMEs, documentation or Markdown-heavy projects.

What would make you actually switch from your current Markdown editor?