Obsidian works on locally stored markdown files in any directories structure you use, so you can bring them into anything from VS code, to Joplin, to typora. I

Obsidian works on locally stored markdown files in any directories structure you use, so you can bring them into anything from VS code, to Joplin, to typora. It's one of the main reasons that I swapped from Evernote - zero vendor lock-in and plain text format.