We were trying to figure out how to import from Ghost to WordPress, and after several failed attempts at converting .json to .xml and importing that, I tried this plugin. Worked great on WordPress 5.3.2. Thanks, Tyson!

Imported all of my posts, images, everything. Couple of tiny nuances, but saved me a tonne of times. Things you will need to change: 1) Categories get imported as tags. 2) Excerpts are missing (if you have set them). 3) Pages get imported as posts. All minor things, great plugin. Like I said, saved me hours. Great work!

Fairly spartan. There is an option to do a "dry run." However doing so only shows that 0 of 0 posts would have been imported. I bit the bullet and went ahead and ran it. Even though it still said 0 of 0 posts imported... when I clicked on the posts, they were all imported. Included drafts that had not been published. I haven't looked super closely at the posts themselves, so it's possible that there will be issues that need to be corrected, but such is life. Tight work!