Joplin is really great. I use it since a few month. Unfortunately, I have some problems with the Windows version that I have to use at work: After a few days it eats my memory (2GiB+) or hangs completely (I have to kill it with the task manager).
Otherwise it's great. The UI could use a little polishing, especially regarding the tagging system.
Quiver recently added one as well, works decently and actually fetches images to store locally unlike Evernote web clipper
Some javascript-heavy segmented pages don't clip correctly, but firing up the browsers reader-mode usually clears all the js crap and allows page content to be cleanly clipped
Otherwise it's great. The UI could use a little polishing, especially regarding the tagging system.