Those are search engines and created by Mozilla. That’s why they all have @search.mozilla.org.

This is old now, but I recently found Zettlr and I am liking it so far. It has better navigation than Notesnook and very easy to use. I like the way it renders markdown without having to switch between a read or edit type of view like Joplin.

I used Joplin and now use Notesnook. At the time I switched because Notesnook had better support for tables, Joplin sucked for taking some stuff out of Onenote that had tables.

I am going to try out Trilium in comparison to Obsidian as a next thing. Currently I have stuff scattered in Onenote, Joplin, and Notesnook so I guess it’s a sign that none fully hit the mark.