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VS code. It has previews and works pretty well out of the box.

vim

Vscode, obsidian, Marktext.

Vim, with grip for previewing in a web browser.

VS Code on my laptop, neovim when sshing to my servers, and Nextcloud Notes on my phone

haven’t seen anyone recommend Joplin Notes yet

• License: AGPL-3.0+
• Plugin repo
• Compatiblity: Linux, Android, Windows, and maybe Mac?

Plain Neovim

Neovim with markdown preview plugin

Neovim or vscodium

GVim.

Check out https://ghostwriter.kde.org/ if you are looking for a GUI app with live preview, full screen mode, etc.

Gedit & vs

Depends on the file, very simple files may only warrant npp, but VSCode for more complex stuff where live preview may come in handy.

Vim with a plugin that lets me add a table of contents

I don’t have any need to edit markdown, but I sometimes use Marker: “Simple yet robust Markdown editor made with GTK” as a viewer.

I use emacs org-mode and I export to markdown. If I must start from markdown, I use panda to generate an org-mode from it, and export it back once I’m done.