eXeLearning: Educational resource creator that can export to ePub formats.Benetec Bookshare: eBook library that includes customizable eBooks for people with reading barriers.Active Textbook: ePub reader and publisher that allows users to turn their PDF and ePub documents into interactive eBooks enriched.Vital Source Bookshelf: Leading platform for distributing, accessing, consuming, and engaging with digital textbooks and course materials on the web.Kitaboo: Web based ePub reading application, cloud library and authoring tool.Google Play Books: eBook digital distribution service operated by Google and available on the web, Android, and iOS.Apple Books: eBook reading and store application by Apple for its iOS and macOS operating systems and devices.Aldiko: eBook reader for Android and iOS.Adobe Digital Editions: Industry leading software that allows a user to import text from common document formats, create both reflowable and fixed ePubs, and create a print book that can be simultaneously export in an eBook format.
These include both open source options (available to the public for use and modification) and commercial products. There are a large number of tools that can be used to read, create, and edit ePubs.