How to move view my posts offline elsewhere in standalone browser?

You can EXPORT / a backup (you get 1 big outbox.json) but there is no importing to any Mastodon and you get just separate directory of images but not posts together with text as I see now!)

So how to get my data out of this instance and on a standalone browser-based feed with the same layout and images without being logged in anywhere?

I want to quit my instance and I'm ⛓️ DATA-chained⛓️ .. HELP !