I’m looking for recommendations. I usually use Overdrive with books I’ve downloaded (I think in the epub format). But now I hear that Overdrive is no longer being supported (I think the company wants people to use their Libby app instead). I’m hoping to find something open source and privacy minded. Also not wild about what Overdrive is doing to public libraries
Calibre is a flexible, open-source, cross-platform ebook management system with an excellent ebook viewer built in. It runs on Linux, MacOS and Windows, and can be used to manage wired or wireless stand alone ebook readers. You can also use it to set up your own content server. With the 170+ plugins available there probably isn’t much it can’t do.
For Android, Cool Reader is an open-source app that works really well and is available on F-Droid. It also runs on Linux, MacOS, Windows, BSD and ChromeOS.