Sorry, but Sigil is not in the e-reader game. Sigil does support 3 e-reader plugins that are meant for users to see how their epub might look and act in an e-reader. Links to them are available in our Plugin Index.
The best epub3 e-reader for Desktops is without a doubt Thorium. They support Windows, Mac, and Linux. And like Sigil is completely free.
Most portable platforms have decent epub3 e-reader apps available too: Books.app, the Bluefire Reader app, and the Kobo app come to mind for iOS platforms. I am sure some good epub3 e-readers exist for Android as well.
And Calibre has a free e-reader built in.
Have you tested your epub on Thorium, or any of the iOS apps mentioned? My guess is they all will work with audio, video, and javascript.
So adding yet another e-reader effort really makes no sense.
Last edited by KevinH; 06-19-2025 at 07:44 PM.
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