This works by uploading the EPUB file to your Google account and viewing it through their web client. Google Play Books is another place you can open EPUB files. There’s even a Firefox Add-on (EPUBReader) and Chrome app (Simple EPUB Reader) that allow you to read EPUB files in the browser just like other documents.ĥ. Plenty of iPhone and Android apps also exist that allow viewing of EPUB files. You can also open EPUB files on a computer with a number of free programs, like Calibre, Adobe Digital Editions, EPUB File Reader, Stanza Desktop, Okular, Sumatra PDF, and many more.Ĥ. You must convert EPUB files before they’re usable on the Amazon Kindle.ģ. You can open EPUB files in most eBook readers, like the B&N Nook and Kobo eReader.Ģ.