Sigil is an open source EPUB editor available for Linux, Windows and macOS. With Sigil, you can create a new ebook in EPUB file format or edit an existing EPUB ebook (file ending in .epub extension). In case you are wondering, EPUB is a standard ebook file format endorsed by several digital publishing groups. It is well-supported on a range of devices and ebook readers except Amazon Kindle. Sigil lets you create or edit EPUB files Sigil is an open source software that allows y
