How do I save a world from my server to play offline?

I’m planning on getting rid of my server soon as not a lot of people play it anymore, however, I want to keep the world file to be able to play on my own as I put good hours into the world. If someone could tell me how to save the world file to my pc itd be much appreciated.

What you want is called an “archive”, which is a compressed file containing the full server.

In the webui, there’s a button just for this, then you just need to copy the resulting file located in /var/log/archives/[servername]/ to your pc and you’re set.