What the title says, basically. Any help would be appreciated!
I think your program is calibre
If your book on Kindle is DRM protected, you need Calibre + DeDRM plugin.
I ripped all my books from Kindle before moving to another e-book reader
Try Library Genesis in future. Calibre DeDRM doesn’t work with the latest Amazon book format iirc, though it may have changed.
Couldn’t you just log into your kindle account and download them to your Mac directly since you already have them purchased
No, Amazon took that ability away.
Calibre allows you to maintain a library of you ebooks and sync it with devices (including Kindle). It is also able to convert the ebooks to all formats you need.
I mostly use it to get ebooks from z-lib and put them on my Kindle. But it works the other way around, too.
deleted by creator
Kindle is based off Android. I was able to do it on Windows with the help of an app, but I’ve never had a Mac. Quick Google search led me to this.
https://www.amazon.com/Amazon-Digital-Services-LLC-Download/dp/B00UB769KC
I can get my hand on Windows, which app did you use?
Honestly, I don’t remember. That’s been many years ago and I’ve engaged in so many projects since then.