Open source markdown editor with file tree panel

Question

I'm searching for an editor to work with my notes organized as a hierarchical file tree in a markdown format. It should display both file tree and text editor panels like that:

+================================================+
||  notes                 ||  Text editor area  ||
||  ├── cooking           ||                    ||
||  ├── personal          ||                    ||
||  │   ├── bookmarks.md  ||                    ||
||  │   └── random.md     ||                    ||
||  └── projects          ||                    ||
+================================================+

It should:

1. display simultaneously file tree and editor area (and be able to switch between files);
2. support markdown format (highlight markdown format and display formatted preview);
3. (nice to have) be able to display TOC generated from markdown headers in file;
4. be open source and work under Linux.

There are lots of markdown editors for Linux but they all lacking file tree panel for quick access to all files under working directory.

Answer 1

You can use VScodium, the telemetry/tracking-free version of Visual Studio code (which itself claims to be opensource but the matter is debated). Both software provides :

• Filesystem view, in the Explorer panel,
• Markdown syntax highlighting,
• Markdown document hierarchy view in the Explorer panel, Outline subpanel
• Markdown preview.

Specific extensions of interest could be:

• markdown-all-in-one for several features (including TOC),
• auto-markdown-TOC specifically to generate TOC,
• markdownlink to enforce quality and consistency of your markdown files.
• vale to enforce style guidelines.

Both should run on Windows/Linux. They may not be exactly "lightweight" software.

Answer 2

You might want to try

https://www.zettlr.com/

display simultaneously file tree and editor area (and be able to switch between files); CHECK

support markdown format (highlight markdown format and display formatted preview); CHECK

(nice to have) be able to display TOC generated from markdown headers in file; CHECK

be open source and work under Linux. CHECK